【Haichuan Building Drawing Review】AI-based review covers everything; how to avoid pitfalls in the 15 essential points to check during drawing reviews!

II. AI-based routine warnings for drawing review – 15 essential points to check (sorted by priority; the first 5 are strict AI red lines with no tolerance for errors). Part 1: Essential strict red-line items that must be checked (AI will immediately reject them, and responsibility will be pursued in case of issues). 1. Verification of compliance with mandatory provisions for project construction: Check whether requirements related to structural safety, fire and explosion prevention, seismic resistance, and civil defense meet the current mandatory standards. Whether the load values, member cross-sections, reinforcement ratios, and anchorage lengths meet the minimum requirements of the codes. Fire evacuation, fire compartments, and fire resistance ratings: are there any cases of unauthorized reduction or incorrect labeling? Key tip to avoid pitfalls: Don’t rely solely on the design specifications; compare them one by one with the latest mandatory requirements. If you have any doubts, seek written clarification – never settle for an oral answer. 2. Verification of consistency between the general design specifications and the drawings: Check whether the seismic resistance rating, concrete strength, steel bar types, and waterproofing grade specified in the design specifications are consistent with those indicated in the floor plans and detailed drawings. Check whether the construction specifications and acceptance standards specified in the general instructions are the current valid versions, with no obsolete specifications. The material requirements and process standards are consistent, with no contradictions or ambiguous expressions. Common pitfalls with AI: If the specification states C30 concrete, but the beam drawings indicate C25, AI will automatically flag this as a violation; if it isn’t mentioned during the review, it’s your responsibility. 3. Verification of consistency in dimensions and elevations of architectural and structural drawings: The axis dimensions, floor elevations, and location of openings in the architectural drawings, structural drawings, and mechanical and electrical drawings all correspond exactly to each other. The elevation levels of the bathroom, balcony, and roof slab are consistent, with no conflicts or omissions. The positions of the walls and components are accurate, with corresponding relationships between upper and lower floors, and no misalignment. Key points to avoid pitfalls: issues related to height differences and misalignments; these cannot be corrected later on, and the structure will have to be demolished and rebuilt. It’s essential to address these problems during the initial review stage. 4. Inspection of key elements in the foundation and main structure: The bearing capacity of the foundation, the depth of the foundation, the reinforcement in the cap beams, and the placement of post-cast strips all conform to the results of the geological survey report. Reinforcement at beam-column joints, intersections of primary and secondary beams, cantilevered elements, and corner walls – nothing is missing or incorrect. For the sections related to high-risk projects (high-formwork systems, deep foundation pits, large-span structures), the drawings provide complete details suitable for construction. Key AI warnings: Insufficient reinforcement in cantilevered components and the absence of detailed drawings for joints are areas where accidents occur frequently, as well as zones where accountability issues arise severely. 5. Compliance verification of specialized fire protection and civil air defense drawings: The fire evacuation widths, the number of safety exits, and the installation of fire doors all meet the relevant specifications. Civil air defense sealed joints, protective units, as well as pre-installed elements – nothing is missing or incorrect. The special drawings match the civil engineering drawings perfectly, with no overlaps or conflicts. Key reminder: Lifelong accountability applies to the special inspections related to fire and civil defense; if no issues are raised during these inspections, any subsequent rectifications will be attributed to inadequate oversight by the technical supervisor.

Part Two: Items That Must Be Checked for Errors, Omissions, and Shortcomings (AI-based batch marking; any subsequent changes will be your responsibility). 6. Early verification of clashes among mechanical and electrical pipelines – Ensure that there are no intersections or clashes between plumbing, electrical, HVAC, and fire protection pipelines in corridors, pipe shafts, and ceilings. The pipeline elevation does not occupy structural space, does not affect the opening of doors and windows, and does not block access panels. The sleeves and openings are pre-arranged to match the positions of the pipelines exactly, with no omissions. Key to avoiding pitfalls: 90% of post-production rework, project delays, and cost overruns are caused by pipeline collisions; written comments must be submitted during the review process. 7. Verification of the integrity of pre-arranged openings and embedded sleeves: For water and electricity shafts, pipe shafts, and equipment openings, the dimensions, elevations, and positions of all pre-arranged openings are accurate. All wall-penetrating and floor-penetrating sleeves must be clearly marked, with no omissions or incorrect markings. The equipment foundation, the location and dimensions of the embedded parts, as well as their elevation, must match the equipment parameters. Common AI pitfalls: holes are shown in the drawings, but not indicated in the details ； The instructions state that embedding is required, but no positioning is indicated on the floor plan; therefore, grooves and holes will have to be made later, which will damage the structure. 8. Verification of the completeness of node details and detailed drawings: There are complete detailed drawings for the waterproofing nodes in the roof, bathrooms, and basement. External wall insulation, plastering, expansion joints, and contraction joints – with detailed construction drawings available. Railings, doors and windows, curtain walls, and canopies come with complete detail specifications. Key reminder: No detailed drawings = construction is not possible; only conventional methods can be used later, and the technical supervisor shall bear full responsibility in case of quality issues. 9. Verification of consistency between door/window and component parameters and drawings: The dimensions, quantities, and opening directions specified in the door/window table match those in the floor plan exactly. The requirements for wind pressure resistance, water tightness, and air tightness of doors and windows should be clearly indicated. Pre-fabricated components and secondary structure parameters match the structural specifications. Key tip to avoid problems: If the dimensions of doors and windows don’t match, issues such as gaps, leaks, and the need for rework all fall under the responsibility of proper technical oversight. 10. Thorough inspection of all key areas requiring waterproofing and leak prevention: basements, rooftops, bathrooms, exterior walls, and balconies; the waterproofing grade and implementation methods must be clearly indicated. There are complete methods for flashings, end closures, internal/external corners, and waterproofing joints at pipe bases. Water-stop steel plates, water-stop strips, and waterproofing methods for post-cast strips – nothing is overlooked. Key reminder: Leakage is the quality issue with the highest repair rate, the most complaints, and the longest duration of follow-up; strict control must be exercised at every stage during the review process. Part Three: Essentials to Check Before Commencing Construction (not marked by AI, but 100% accountability in case of issues) 11. Verification of construction feasibility and rationality of procedures: Check whether the design details meet the on-site construction conditions, ensuring there are no designs that make construction or acceptance impossible. The process logic is reasonable, with no conflicts between stages and no design that allows for simultaneous operations. For the installation of heavy components and equipment, there is sufficient space for construction operations. Key tip to avoid pitfalls: The designs may look great on paper, but they’re not feasible in practice; the reviewers won’t raise any issues, and you’ll have to carry out the work anyway, taking full responsibility for any problems that arise. 12. Verification of the consistency between the geological survey report and the drawings: The foundation design and foundation treatment methods are fully in line with the geological survey report. For soft soil layers, groundwater levels, and poor geological conditions, there are corresponding design solutions. Foundation pit support and slope protection should be adapted to the geological conditions. Key reminder: Mismatches between the geological conditions and the drawings are the primary causes of foundation failures and settlement problems; written confirmation must be obtained to ensure everything is addressed. 13. Verification of the feasibility of material and equipment parameters: The materials and equipment specified in the design are standard products available on the market; there are no obsolete items or niche, non-standard products. The material specifications and performance indicators meet national standards, with no excessive or unattainable requirements. The equipment dimensions and installation requirements must match the conditions available on site. Key tip to avoid pitfalls: If the design specifies non-standard materials, it will lead to difficulties in obtaining them later on, increased costs, and project delays – all of which are considered the result of inadequate oversight by the technical supervisor. 14. It is necessary to verify whether all the responses to questions regarding the initial drawings and the pre-review comments have been incorporated into the final version of the drawings. The design modifications include clear version numbers and modification dates. For all questions raised during the review, a written response from the design team is required, to be stamped for confirmation. Core principle: All issues must be recorded in the meeting minutes; designs require signatures and stamps. Oral responses are invalid and cannot serve as a basis for construction. 15. Advance prediction and assessment of cost and change risks: Identify elements in the drawings that result in high costs or excessive construction difficulties, and propose optimization suggestions in advance. For areas where subsequent visas or changes are likely to occur, the procedures should be clearly specified in writing in advance. For design elements outside the scope of the contract, define the boundaries of responsibility in advance.

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