What should be paid attention to during drawing review?

Mistakes, omissions, damages, and shortages – but the most important thing for the construction party is to verify the materials

Structural issues, challenges in production processes, and cost considerations.

Organize various specialties to review the drawings from a design perspective; if considering only the installation aspect, at least issues related to the location of the prefabrication site, the storage of equipment and materials, and the lifting locations should be taken into account in terms of the overall layout； Whether the lifting and construction plans are feasible, and whether the deployment area meets the schedule requirements ； Whether the design depth of the drawings complies with relevant regulations, and whether the designs of different specialties are consistent with each other; for example, whether rotating equipment has appropriate power supply in terms of electrical systems, whether instrument control systems are functional as required, and whether piping is properly connected to the equipment, with all necessary pre-arrangements and embedments in the civil structure in place ； To determine whether the internal professional design is complete – including whether the equipment platforms are suitable, the pipe supports are in place, and the instrumentation components are available – one can refer to the review standards set by the design institute

It involves organizing various professionals (supervisors, owners, contractors, designers) to assess aspects such as the rationality of the design, compliance with basic design principles and accuracy, ease of construction and operation, economic viability, and any errors in the materials used. Additionally, the department now requires that project drawings be reviewed by a professional drawing review company (mainly for buildings), with the cost calculated per square meter.

⑴ Whether the drawings have been officially signed by the design unit. ⑵ Are the geological exploration data complete? ⑶ Are the design drawings and specifications complete, and is there a schedule for providing the drawings in phases? (4) Does the design seismic intensity meet local requirements? ； (5) Check whether there are any contradictions among the professional drawings prepared by the design unit, as well as between the plan, elevation, and sectional views, and whether there are any omitted annotations. ； (6) Are the geometric dimensions, planar positions, and elevations of the general layout plan consistent with those of the construction drawings? ； (7) Whether the construction unit has access to the various standard catalogues listed in the construction drawings ； (8) Whether the design unit provides the local standards and institute standards listed in the construction drawings ； (9) Is there any guarantee regarding the source of the materials? Can they be replaced? Are there any issues with the use of new materials and new technologies? ； (10) Are there any technical issues in the diagram that make construction impossible or difficult, or that could lead to problems related to quality, safety, or increased project costs? ； (11) Whether there are any conflicts between the process pipelines, electrical circuits, equipment installations, transportation routes, and buildings, as well as among these elements themselves, and whether their layout is reasonable ； (12) Are there any issues in the design that make operation difficult or prone to errors? ； (13) Whether construction safety and environmental hygiene are ensured, etc. (14) Are safety, environmental protection, and fire protection designs considered simultaneously? (15) Are there any issues in the design that make maintenance difficult? ； (16) Are the material, specifications, standard numbers, and quantity incorrect? (17) Whether the listed materials, fittings, etc. are readily available for purchase. (18) Is there a problem with the design based on usage experience? This post was last edited by lhy on 2009-3-10 10:47]

Detailed Rules for Supervision of Design Technical Briefings and Construction Drawing Review SSXZ--005 1. Purpose: To facilitate proper construction by the construction unit during design technical briefings and construction drawing reviews as part of the supervision process, thereby ensuring the smooth progress of project quality and construction. In accordance with relevant requirements such as the \"Code for Supervision of Construction Projects\" (GB50319—2000) and the \"Code for Management of Construction Project Projects\" (GB/T50326—2001), these implementation guidelines are formulated. 2. Scope: 2.1 The scope of “design technical disclosure and construction drawing review” refers mainly to the design documents provided by the employer to the contractor after the signing of the “construction contract for the engineering project” and the “contract for project supervision”, which have been verified as valid; as well as the ** standards and local current standard drawings, general drawings, etc., referenced in those design documents. 2.2 The design technical briefing and construction drawing review mainly address issues such as errors, omissions, deficiencies, and overlaps in the drawings, as well as problems that need to be resolved by the designers due to constraints on construction conditions on the part of the contractors, or due to supply difficulties on the part of equipment and material suppliers requiring alternative materials. 3. Preparation work for design briefings and construction drawing reviews: 3.1 The project’s technical supervisor of the construction unit is responsible for ensuring that the technical personnel in charge of various specialties become familiar with the design drawings. Any issues identified in the drawings are compiled by each specialty, and after being reviewed by the project’s technical supervisor, they are submitted to the design unit through the construction unit. 3.2 The chief supervision engineer shall organize the supervision personnel from various specialties to familiarize themselves with the design documents, and summarize the issues present in the drawings by specialty. After review by the chief supervision engineer, written opinions and suggestions shall be submitted to the design unit through the project owner. 3.3 Upon receiving the summary of issues identified during the drawing review by the construction and supervision parties, submitted by the client, the design unit’s professionals responsible for each area will propose solutions or design modifications for those issues. They will then agree with the client on the date and location for the design briefing and the drawing review session. 4. Organization of design technical briefings and construction drawing review: Design technical briefings and construction drawing reviews are organized by the project owner, with the participation of relevant responsible persons from the design unit, construction unit, and supervision unit. 5. Procedures for design briefings and review of construction drawings: 5.1 The person in charge of the design project provides an overview of the project. 1) Overview of the design plan and the review comments on the preliminary design ； 2) Scope of design ； 3) Composition of design documents and methods for finding them ； 4) Characteristics of raw materials, products, and production technologies ； (For civil buildings, the project characteristics and intended uses should be described.) 5) Main construction work volume and revised estimate ； 6) Requirements for relationships and coordination with entities outside the engineering community ； 7) Requirements for production preparation and project acceptance, etc ； 8) Other issues that should be explained ； 9) Responses to questions raised by the construction and supervision parties. 5.2 Professional briefings are conducted by the design leaders of each specialty. The main contents include the scope of design ； Composition of design documents (standard drawings, general drawings), methods for searching for them, and engineering considerations regarding legend symbols ； Special requirements imposed on engineering by technical characteristics ； Professional estimates for construction work quantities and adjustments ； Specifications and standards to be followed in design and construction ； Interconnection and integration with other disciplines ； Handling of suggestions regarding construction and supervision ； Explanation of design-related issues and problems to be addressed on-site ； Other issues that should be explained, etc. 5.3 After listening extensively to the opinions of the participants, the representative of the design unit consolidates the raised issues to prepare the meeting minutes. 6. Responsibilities: 6.1 The construction unit shall take the lead in drafting the \"Minutes of the Design Technical Briefing and Construction Drawing Review Meeting\", with the participation of the design unit, the supervision unit, and the project owner. 6.2 The final version of the “Meeting Minutes” shall be signed by the relevant responsible persons from the design unit, construction unit, project owner’s unit, and supervision unit, and stamped with their official seals. 6.3 The final version of the “Meeting Minutes”, once signed and sealed, shall be promptly sent to the relevant parties involved in the project’s construction, implementation, design, supervision, etc.; it is binding on all such parties. “The contents determined in the “Meeting Minutes” have the same validity as the design documents.

I think that for the owner or general contractor, aside from what the others have mentioned, everything else is part of normal practices and standard procedures. It is crucial to focus on the following two points: 1. Organize as many people as possible to conduct professional reviews, and at the same time, each specialty should have its own dedicated review team. Each person first gets a small portion, with review content and review responsibilities linked to signatures. It is linked to bonuses and the responsibility for future design changes. Because if one only focuses on the specific specialty, and the project is large in scale, the review becomes a mere formality, preventing the detection of detailed issues. 2. Once the review is complete, modifications and tracking must also be carried out by a dedicated person. 3. In the case of renovation or expansion projects, it is also necessary to review the drawings in conjunction with the manufacturer. Professionalism

All the above have covered the matter comprehensively, but the most important thing is to see whether this diagram can help coordinate the work of various units in the subsequent steps. After all, a diagram is just a tool, meant to facilitate better work. Rather than killing it with rules and regulations. Therefore, when reviewing drawings, it is necessary to consider them from various angles; as for encountering non-professional issues, seeking advice from others is also beneficial for the subsequent work.

2.2 Drawing Review 2.2.1 Purpose of Drawing Review: To understand the design intent and clarify quality requirements, and to resolve as many of the issues and errors present in the drawings, as well as any conflicts between different specialties, as possible before the start of construction. 2.2.2 Participants in the review: project manager, project technical leader, professional technicians, quality inspectors, and other relevant personnel. 2.2.3 Review time: It should generally be carried out before the start of the construction project; in special cases, the review can also be organized while construction is in progress (for example, when the drawings cannot be provided in a timely manner). 2.2.4 The review meeting is generally organized by the project owner; the project department should, in accordance with the construction schedule requirements, urge the owner to organize the review meeting as soon as possible. 2.2.5 Review contents 2.2.5.1 Examine whether the construction drawings meet **relevant technical, economic policies and applicable regulations. 2.2.5.2 Review the foundation engineering design and ground treatment in the construction drawings to check for any issues and to ensure they are in line with the actual geological conditions at the site. 2.2.5.3 Check whether the coordinates, elevations of the construction project are consistent with those indicated in the general plan, and whether there are any contradictions or errors in the geometric relationships, axis relationships, and directions relative to other related construction projects. 2.2.5.4 Check whether the drawings and specifications are complete and clear; verify that the drawings related to architecture, structure, water supply and drainage, heating and sanitation, ventilation, electrical systems, equipment, and pipeline installation are consistent with each other, and that the dimensional relationships and elevations are accurate. 2.2.5.5 Review whether there are any conflicts between the construction project and underground structures, pipelines, etc. 2.2.5.6 Examine the parts of the construction drawings where construction is particularly difficult, determine what special materials, components, and fittings will be used, and plan how to obtain them. 2.2.5.7 Discuss the feasibility of the new technologies, new structures, new materials, new processes, and new equipment adopted in the design, as well as the necessary measures to be taken. 2.2.5.8 Due to factors such as construction conditions, the capabilities of construction machinery and equipment, and safe construction practices, new technologies and structures incorporated in the design may require the design team to make certain modifications. Such requirements must be raised during the review process, so that they can be discussed together to find an optimal solution. 2.2.6 Review procedure 2.2.6.1 The review is convened by the project owner. The construction entity shall separately notify the design party, the supervision party, and the subcontracted construction units (in the case of subcontracting by the construction unit, it is the construction unit that shall give the notification) to attend. 2.2.6.2 Review is divided into “specialized review” and “comprehensive review”, aimed at resolving various contradictions within a particular specialty as well as between different specialties, as well as issues related to coordination during construction. Whether it is a \"specialized\" or \"comprehensive\" review, before the review takes place, the design unit should first explain the design intentions, as well as the important and critical aspects. It should also outline the methods, requirements, and quality standards related to the new technologies, structures, processes, materials, and equipment that will be used. Only after that can various parties raise their questions. 2.2.6.3 During the joint review, the project’s in-house technical staff shall put forward the unified opinions from the self-review and record them. After the joint review, the review records for the drawings are compiled, and they become valid once stamped by all the units that participated in the review. 2.2.6.4 Depending on the actual circumstances, the drawings can also be reviewed in stages, such as for underground pipeline works, the main structure, and plumbing, heating, and cooling systems. When there are many or significant issues with the drawings, further reviews can be conducted during construction to address any design problems that arise. 2.2.7 Contents of the joint review record 2.2.7.1 Project name (specify the phase of the individual project tasks during phased joint reviews). 2.2.7.2 Units participating in the joint review (full names required) and the names of their personnel (titles are not allowed in place of names). 2.2.7.3 Location of the joint review (the location must be specific), and date of the joint review (year, month, day). 2.2.7.4 Contents of the joint review record: 1) Contradictions and issues identified by the construction entity and the construction contractor in the design drawings, which require responses and revisions from the designer. (Indicate the type of diagram and its number; if necessary, provide a description of the diagram.) 2) The construction party’s suggestions regarding the modifications to certain design elements, along with the solutions proposed for reasons such as ease of construction, construction safety, or material-related issues. (Indicate the figure type and figure number; include a caption if necessary.) 3) Issues that have not been resolved during the review or require further discussion. 4) List the names of the units participating in the review, and it shall take effect after stamping. 2.2.8 Transmission of review records 2.2.8.1 The drawing review records that have been approved with stamps are handed over by industry technicians to the project document manager, who is then responsible for sending them out. 2.2.8.2 Entities that send the review records: 1) The construction entity (owner); 2) The design entity; 3) The supervision entity; 4) Project departments: departments such as technology, quality and safety, finance and budgeting, and engineering. Professional technicians, relevant teams (workgroups), budget officers, and document clerks shall keep three copies for use as handover documents.

1. Key points to note when reviewing civil engineering drawings: Whether the structural design meets the requirements for fire protection, explosion prevention, corrosion resistance, and seismic resistance； Rationality of the basic treatment plan ； Treatment measures for special foundations ； Space required for structural layout in production operations, maintenance and installation, transportation, etc ； Installation of fire ladders ； Design details for structural corrosion resistance, freeze protection, and seismic resistance ； Seismic fortification status of roof components ； Strength, deformation, and stability of major components ； Verification of prefabricated parts lifting ； Are there any special requirements regarding fire protection, explosion prevention, toxin removal, sound insulation, radiation, etc.? ； Check whether the design includes fire protection measures, as well as procedures for handling waste. 2. Key points for reviewing electrical engineering drawings: Whether the existing power supply sources and power consumption data are consistent ； Selection of power supply system and voltage scheme ； Meets requirements, short-circuit current protection measures, power factor compensation ； Safety and rationality of aspects such as minimum illumination for the backup power supply system and operating power supply, production control, equipment protection, and duration of operation ； Selection of main electrical equipment and circuits, usage conditions, economic rationality, and safety ； The distribution location, structural form, and layout of substations have an impact on operation and the environment ； Classification of areas at risk of explosion and fire, considerations for safety measures, moisture and corrosion prevention measures ； Working ground, protective ground, lightning protection, and anti-static grounding methods ； Design of control, signaling, relay protection, and automatic devices. 3. Key points for reviewing drawings in the automation control field: list of automation control equipment, power supply system diagram, schematic diagrams of signal alarms and accident interlocks, and flowchart of control points in the process line. The main aspects of the inspection include: examining the composition of the control system and the safety status of key monitoring or control points ； Economic rationality and safety reliability of power supply schemes and emergency power measures ； Alarm system solution ； Are the design and equipment selection for the accident cascade system safe, reliable, and economically reasonable? ； When the control room is located in an explosion-proof area, the adequacy of safety measures and compliance with regulations ； Placement and color of alarm signal lights and operation indicator lights ； Explosion-proof measures adopted for the location of the analyzer room in explosion-proof areas ； Check whether the inspection and control points meet the process requirements ； Positions of detection points and actuators ； Inspect the implementation of design aspects related to safety, environmental protection, fire protection, and other related areas in the instruments.

4. Key points for reviewing professional drawings of equipment: Pressure vessels handling flammable or explosive media, or the static electricity grounding of the equipment； The materials were selected with consideration given to the effects of the medium, temperature, and pressure; it complies with GB150-98 \"Steel Pressure Vessels\" as well as the \"Regulations on Safety Inspection of Pressure Vessels\" ； Check whether all the required calculations are included (static and dynamic loads, earthquakes, wind pressure, medium pressure, structural stresses) ； The technical requirements specify whether electrodes, welds, flaw detection inspections, heat treatment, and pressure application shall be carried out in accordance with relevant regulations or standards ； Whether safety accessories are installed (temperature indicator, pressure indicator, safety valve, level gauge) ； Whether the exhaust capacity of the safety valve and the safe discharge volume of the container have been calculated and meet the requirements of the regulations for the safety inspection of pressure vessels ； Corrosion prevention issues, selection of corrosion allowance, requirements ； Does the design of the vessel comply with GB150-98 \"Steel Pressure Vessels\"? ； Have the explosion-proof requirements been taken into account for devices equipped with motors? ； Have the design of lifting and transportation equipment, as well as moving machinery, taken environmental protection requirements into account (such as noise, air dust, and exhaust emissions)? ； Check whether the selection of control points meets safety requirements. 5. Key points for reviewing pipeline layout drawings: Whether the materials of pipes, fittings, and valves meet the requirements specified for the pipeline grade ； Does the pipeline design meet the requirements of the pipeline construction specifications? ； Is pipeline static grounding taken into account? ； Is the layout of the pipelines for transporting highly toxic and poisonous substances appropriate, and is the valve design sound? ； Are there any regulations regarding sewage discharge, and have measures such as the installation of fire suppression steam systems and noise reduction been taken into account? ； Considerations for resonance in pipeline design ； Calculation of pipeline thrust data, submitted to the equipment team for review ； Whether there is a calculation of process resistance for the piping of the flare and safety valve, and the result of that check ； 6. Key points for reviewing pipe axonometric drawings: Whether the material selection is in line with the requirements regarding pipe grades, and whether the thickness of carbon steel pipes has been determined taking corrosion factors into account ； When the computed torque is high and it is necessary to upgrade the flange grade, the corresponding action taken by the equipment team ； Are the operating pressures indicated for the safety valves and pressure regulators? 7. Key points for reviewing the equipment layout plan: compliance with the preliminary design and approval comments, as well as the handling and implementation of related issues ； Were safety issues (fire protection, earthquake resistance, seismic resilience) and hygiene concerns taken into account, and were the corresponding standards implemented? ； Does it conform to the principles of practicality, cost-effectiveness, safety, and space efficiency? ； Have environmental protection measures been considered? ； Does the equipment layout meet the requirements for production operations? ； Does the equipment layout meet the seismic requirements, and have considerations been given to corrosion prevention (such as anti-corrosion flooring and edges of pits)? ； The rationality of the layout in the basement and gutters – whether it facilitates wastewater drainage ； Whether various loads (including floor loads and main pipe loads) are reasonable.

Everything mentioned above is quite comprehensive. My summary of this is: feasibility, rationality, and necessity (economics):handshake

Before the start of construction on a typical project, the owner, design agency, contractor, and quality supervision unit all participate in a drawing review session. This is done to identify and resolve any errors or contradictions in the design, as well as any issues that may lead to ambiguity during construction or pose difficulties in future work, thereby avoiding unnecessary losses during the construction process. Regarding the electrical and plumbing drawings as part of the supporting works, based on several years of construction experience, the following points should be taken into consideration during the review process. I. Are the water and electricity construction drawings complete? Examine the entire set of construction drawings and check the drawing index to see if there are any missing drawings, as well as any detailed drawings or standard drawings specified in those drawings. II. Standardization of plumbing and electrical construction drawings: Are the system diagrams, floor plans, detail drawings, general drawings, and standard drawings from reference atlases for plumbing and electrical construction standardized? III. Unification of water and electricity construction drawings with civil engineering construction drawings 1. Whether walls, columns, beams, etc. in civil engineering affect the installation of sanitary fixtures, fire protection equipment, lighting fixtures, electrical equipment, and water and electricity pipelines. In frame structures, sometimes the plumbing design does not take into account the impact of structural columns on the installation and use of plumbing fixtures; in actual construction, however, the dimensions of these structural columns affect the dimensions to which the fixtures must be installed. Fire extinguishers are generally installed in stairwells; it is necessary to refer to the civil engineering drawings to check whether the stair beams or structural columns will affect the installation of the fire extinguishers. During electrical work, it is necessary to pay attention to whether the position of beams shown in the civil structure drawings affects the symmetrical arrangement of electrical fixtures and the level of illumination; at the same time, it is important to consider whether the beams will impact the installation of ceiling fans. If these issues are not raised prior to construction along with proposed solutions, they will lead to design changes during the later stages of construction, causing certain losses to the owner or the construction party. 2. Whether the location, dimensions, and technical requirements for equipment and fixture rooms in the hydraulic and electrical diagrams are consistent with those specified in the civil engineering drawings. For example, the doors of fire control rooms should open in the direction of evacuation, and clear signs should be placed at the entrances; the civil engineering design must ensure that the opening direction of the doors meets these requirements. Are the civil engineering drawings of the pump house embedments consistent with the dimensions and locations shown in the plumbing and sanitary drawings? 3. Does the layout of the pipes affect the finishing appearance? In the case of drainage pipes, when the horizontal sections are very long, and due to the specified height difference required between the main pipe and the branch pipes, coupled with the slope of the pipes, this height difference becomes significant by the time one reaches the end of the pipe. This can affect the overall height of the installation. These issues can be raised during the drawing review, and they can be resolved by methods such as using sleeves or making partial changes to the decoration plan; this will prevent such situations where a minor error affects the overall outcome. 4. Are the axis lines, wall center lines, column center lines, beam center lines, etc. in the civil engineering drawings consistent with those in the plumbing and electrical drawings? Attention must be paid to these dimensions for electrical piping, plumbing and sanitary fixtures outlets, etc. IV. Unification of plumbing diagrams and electrical diagrams: Check whether there are any conflicts between the installation of lighting fixtures and electrical circuits in the bathroom and that of water supply and drainage pipes, as well as whether there are any clashes in the placement of fire extinguishers and distribution boxes. V. Any special requirements? Do the units participating in the drawing review have any special requirements? (III) Drawing review for engineering projects I. Three key points should be focused on during the drawing review. First, identify the defects and errors in the drawings themselves. Review whether the drawing design complies with **relevant policies and regulations (building design, structural design, construction standards, etc.) ； Are the drawings and instructions clear, and are the referenced standards accurate? ； Are there any errors or omissions in the construction drawings standards? ； Are the dimensions, plan positions, and elevations in the general layout plans consistent with those in the building construction drawings? Is the relationship between the plan, elevation, and sectional views consistent? ； Whether the designs of various professional tasks are coordinated and consistent. 　　Second, considering the feasibility of construction along with the characteristics of the drawings, it is necessary to examine whether the drawings can be met in terms of quality, safety, schedule, construction techniques, material supply, and even economic efficiency during the construction process; if needed, it is recommended that the design team make appropriate modifications. 　　Third, are the geological data complete enough to meet the requirements of the drawings? ； Do the surrounding buildings or environment affect the construction of this building, etc.? ； Whether the functional design of the construction drawings meets the requirements of the project owner, etc., are all key aspects of the drawing review. 　　II. Prepare well for the drawing review The preparation work for the drawing review is mainly carried out by the management team at the construction site – the project manager’s office. The overall coordination of the preparatory work for the drawing review is the project’s technical supervisor. The technical supervisor of the engineering project should organize the relevant technical personnel to review and understand the drawings in a divided manner, and establish a schedule for the drawing review meetings. 　　Generally speaking, the construction party should focus on the issues within the drawings themselves and conduct a review in light of practical requirements, while the project owner should put forward reasonable demands regarding the functional uses. From the perspective of the construction party, it is necessary to check whether the drawings are in line with architectural and structural design requirements as well as construction standards ； Study the relationship between design drawings and construction quality, safety, schedule, techniques, material supply, and efficiency ； The impact of geology and the environment on construction is under the overall responsibility of the technical supervisor (or, if necessary, the company’s chief engineer), while issues related to the construction drawings are generally assigned according to different job roles and responsibilities. Generally, the civil engineering department is responsible for the structural and building components, while the installation department handles water supply, electricity, heating and air conditioning, elevators, etc. The civil engineering section is overseen by the chief foreman, who is responsible for the construction drawings as well as the formwork plans for the structural elements; the rebar foreman is in charge of the rebar work related to those structural elements. The office technician focuses on checking the dimensions and elevations in the construction drawings and the site layout plans, while the quality inspector is responsible for verifying the structural and construction drawings accordingly. 　　The drawings and other issues related to the review preparation are compiled, and the project’s technical leader convenes the relevant personnel for an internal preliminary review. The issues identified after the preliminary review are organized into categories, the relevant problems to be addressed at the joint review meeting are determined, and specific individuals are assigned to make statements and provide supplementary remarks. 　　III. Preparation of minutes for the drawing review The drawing review is generally chaired by the project owner, with participation from the construction party, supervision agency, relevant quality inspection departments, fire safety agencies, environmental protection agencies, and other related parties. 　　First, the design unit explains to the participating units and personnel the intent behind the drawing design, the characteristics of the drawings for various tasks, and related matters. Through the briefing, participants are informed about the basis, functions, process, and objectives of the design, providing a solid foundation and information for reviewing the drawings. 　　After the construction entity provides the relevant instructions, the various teams involved conduct separate group reviews based on their respective roles. The construction contractor raises the questions, relevant personnel provide additional information, the design agency answers those questions, while the construction entity, the supervisor, and **relevant departments express their opinions, thereby reviewing each issue present in the drawings one by one. After the drawing review, the construction unit compiles and organizes the issues identified during the review. The construction party, the design party, the construction contractor, and other relevant parties sign off on it to produce an official review minutes, which serves as part of the construction documents. 　　The minutes of the drawing review should include: the time and location of the meeting ； Units and individuals attending the meeting ； The project owner, the construction contractor, and relevant parties regarding the requirements specified in the design and the elements that need to be modified ； The results of discussions and the solutions regarding the construction drawings that the contractor requested to be modified for the convenience of construction ； Issues that remain unresolved or require further discussion during the joint review ； Other issues that need to be addressed in the minutes, etc. At this stage, as an experienced contractor, one should boldly make changes that are beneficial to oneself to processes that are feasible from a design perspective but are time-consuming to implement and yield poor results. This can shorten the project timeline and reduce costs, which is also advantageous for the client! (IV) Key points for the review of construction drawing design documents by the Ministry of Construction.

From my own experience, to carry out a proper review of drawings, in addition to what is specified in the relevant regulations, it is very important to conduct a thorough preliminary review of the drawings. In particular, the pre-review by the workshop and construction units is especially important. Therefore, sufficient time must be given to the relevant parties to review the drawings before the joint review; it is absolutely unacceptable to proceed with the review in a hurry right after the drawings are sent. If the review is done well, it can **reduce the number of design changes, laying a solid foundation for the smooth progress of subsequent work.

The number of sheets, numbering of the construction drawings for each specialty, and whether they match the drawing catalog. 2.4.2 Whether the construction drawings, construction drawing specifications, and general design specifications are complete, whether the regulations are clear, and whether there are any contradictions among them. 2.4.3 Whether the coordinates and absolute elevations indicated on the plan are consistent with the general layout. 2.4.4 Check for any errors in the dimensions on the drawings, the elevations, the locations of reserved holes and embedded components, as well as the reinforcement in the plan and elevation views and in the cross-sections. 2.4.5 Check whether there are any conflicts regarding axes, positions (coordinates), elevations, and intersection points between the building construction drawings and structural construction drawings, as well as between the structural construction drawings and the professional construction drawings for foundations, water supply, electricity, heating, sanitation, ventilation, etc. Are there any contradictions between the floor plans and the detailed drawings? 2.4.6 Whether the numbers, specifications, models, and quantities of the components shown on the drawings match those in the component list. 2.5 After self-review of the drawings, any issues identified along with relevant suggestions should be recorded and submitted for discussion and resolution during the drawing review meeting.

Omitted items, uncertainties, whether materials are missing, etc

Another point is that proper control at stages such as comparison and review within the design institute is also very important; otherwise, some minor issues might be carried over into the drawings, which in turn increases the difficulty of the drawing review process.

What everyone has said isn’t entirely clear, so I’d like to add a few points based on my own experience. There are several engineering disciplines involved in project design, such as process installation, civil engineering, electrical and instrumentation systems, water supply and fire protection, etc. In regular drawing reviews, each discipline checks the drawings within its own scope; as a result, many errors in those internal drawings can be detected. However, the connections between drawings from different disciplines are often overlooked – for example, whether the dimensions specified in the process installation drawings match those of the civil engineering foundations.

Any aspects of the drawings that are unclear, conflicting, or inconsistent, as well as designs that do not comply with standards or common sense, can be brought up.

It seems that the poster is likely a technician from the construction company, hehe... :handshake :handshake There aren’t as many rules and regulations to follow during the review of the blueprints, so there shouldn’t be any major problems. If so, then the skill level of the designers is a disservice to the audience. The implementation rules provided by Haiyou on the 7th floor are, given the current situation, merely a formality; yet such a document is still necessary. :Lol, it’s impossible to have one person responsible for reviewing the drawings for an entire project; for each individual component of the project, it’s necessary to communicate more with the designers of that specific part during the drawing review process. The common problems I encounter in the drawings I’ve seen can be roughly categorized as follows: the quantity of material is incorrect, and this needs to be verified again; it’s necessary for every drawing. The connection between civil engineering and process engineering, levels, coordinates, and so on. The coordination between various individual projects, as well as between workshops, between pipelines and workshops, and between utility systems and workshops. Instrumentation electrical systems and processes: conflicts with cable trays, conduits, and pipes. Piping supports, equipment bases. Wait. Hehe, it’s just my personal opinion for reference only; I hope it can help you.