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I. Understand the function of the project to be constructed. Once the drawings are available, it is necessary to first figure out what the function of this project is – is it a workshop or an office building? Is it a mall or a dormitory? After understanding the functions, consider some basic dimensions and decoration details; for example, toilet floors are usually covered with tiles and feature tiled wall skirts, while the floor levels in toilets and balconies are generally a few centimeters lower ； The size of the workshop must meet the requirements of production, especially those related to equipment installation and similar needs. Finally, read the building specifications to become familiar with the renovation details of the project. II. Familiarize with and examine the plan dimensions of the project. Construction plans for buildings generally include three sets of dimensions: the first set are the detailed dimensions, the second set are the dimensions between axes, and the third set are the overall dimensions. Check whether the sum of the dimensions in the first set is equal to the second dimension, and whether the sum of the dimensions in the second set is equal to the third dimension; also pay attention to whether the edge axis corresponds to the center line of the wall – in Guangdong Province, it is common practice for the edge axis to be the outer edge line of the exterior wall. To read the dimensions on engineering floor plans, start by examining the building layout plan, then the layout plan for that specific floor, and finally the plans related to water, electricity, and air conditioning installations, as well as equipment specifications and the plans for the second round of renovations. Check to ensure that all these plans are consistent with each other. After becoming familiar with the plan dimensions of this floor, check whether it meets the usage requirements, such as verifying whether the room layout is convenient for use and whether there is adequate lighting and ventilation. When reading the dimensions of the next floor plan, check for any discrepancies with the upper floor. III. Familiarize with and review the elevation dimensions of the project. Construction drawings for building projects typically include front elevation views, sectional elevation views, and stair section views, which contain information on the elevation dimensions of the project ； The floor plans of the building structure and the structural layout plans also usually indicate the elevation of that floor ； In the beam table, there is usually the elevation of the beam surface indicated ； Basic detail drawings and other detailed drawings generally also indicate the elevations. Through these construction drawings, the vertical dimensions of the project can be determined. An elevation view generally shows three sets of dimensions: the first set includes detailed measurements such as the height of window sills and doors and windows; the second set shows the floor height along with the corresponding elevation level; the third set indicates the total height. The inspection method is the same as that for the various dimensions on the inspection plane: whether the sum of the first set of dimensions equals the second set of dimensions, and whether the sum of the second set of dimensions equals the third set of dimensions. Check whether the elevations of each floor in the elevation view are the same as those in the construction plan, and then verify whether the elevations in the construction plan match those in the structural plan. The floor elevations in the construction drawings should not be exactly the same as those in the structural drawings for the corresponding floors. This is because the floor elevations in the construction drawings represent the elevations after the project is completed, whereas the floor elevations in the structural drawings refer only to the structural levels and do not include the height of the finishing layers. Thus, the elevations in the construction drawings for the same floor should be a few centimeters higher than those in the structural drawings. Special attention must be paid to this, as in some construction drawings, the dimensions of the building elements are indicated at higher levels on the corresponding structural drawings; if not taken into account, errors can occur during construction. After becoming familiar with the elevation view, the main thing to check is whether the top elevation of doors and windows matches the bottom elevation of the beams on the upper floor ； Check whether there are any errors in the horizontal dimensions and elevations of the staircase treads, and verify that the vertical clearance under the ladder beam is greater than 2.1 meters, as well as whether there is any interference ； When a terrace appears in the intermediate layer, check whether the terrace’s elevation is lower than that of the interior space ； Check whether the floor of the toilet and bathroom is a few centimeters lower; if not, check for any anti-overflow measures ； Finally, in combination with the installation of water, electricity, and air conditioning systems, the equipment specifications, and the construction drawings for the second round of renovations, it is necessary to check whether the building height meets the functional requirements. IV. Check for any errors in areas of the construction drawings where mistakes are likely to occur. After becoming familiar with the dimensions of the building project, examine those parts of the drawings where errors are likely to arise. The main points to check are as follows: 1. Check whether the slope of the concrete cap on the parapet faces inward. 2. Check whether there is a beam under the brick wall. 3. Are the reinforcement details of the beams in the structural plan indicated in the beam table? 4. Check whether the height of the main beam is lower than that of the secondary beam. 5. When the spans of beams, slabs, and columns are the same or similar, check whether there are any areas with significant differences in reinforcement; if so, perform verification calculations. 6. When beams and shear walls are arranged on the same straight line, check whether the width of any beam exceeds the thickness of the wall. 7. When the beam is supported by both a shear wall and a column, check whether the beam’s centerline is parallel to or coincides with the axis; also verify whether the beam’s width extends outside the wall or column. If so, it should be submitted to the designer for handling. 8. Check whether the minimum spacing between the stress-reinforcing bars in the beams meets the requirements of the construction acceptance specifications. When ribbed deformed steel bars are used in the project, since workers bend them using the ribless side during processing, the diameter of such bars should be taken as the original bar diameter plus approximately 21 mm corresponding to the thickness of the ribs. 9. Check whether a canopy is designed on the door leading from the room to the terrace, and verify that the center of the canopy in the structural plan coincides with the center line of the door in the building plan. 10. Are there any differences between the design requirements and the construction acceptance specifications? As often stated in column tables: if there are fewer than 4 rebar bars on each side, they can be lapped within the same cross-section. However, the construction acceptance specifications require that the overlapping area of steel bars in the same cross-section shall not exceed 50%. 11. Check for any contradictions between the structural description, the structural plans, the details, and the tables of beams and columns, as well as with the construction specifications. 12. The independent foundation is subjected to forces in two directions; the reinforcement bars acting along the short side are generally placed above those acting along the long side. It is necessary to check the foundation details in the construction drawings to ensure that the reinforcement bars are drawn correctly. V. Review the original construction drawings for areas that can be improved. Suggestions for improvements to the original drawings are made primarily with regard to facilitating the construction of the project, ensuring building quality, and enhancing the aesthetic appearance of the structure. 1. Propose suggestions for improving the construction drawings from the perspective of facilitating construction work. ① In the structural plan, there may be cases where consecutive frame beams have large spans between them; when the negative moment reinforcement at the intermediate supports is anchored separately, it results in too many rebar elements at the beam-column joints, making it difficult to pour concrete. It is advisable to suggest to the designers that the negative reinforcement should be connected wherever possible. ②When the negative reinforcement in the supports runs throughout the length of the beam, it results in too dense reinforcement on the beam surface of beams with small spans, making it difficult to pour concrete. It is recommended that, while ensuring the presence of negative reinforcement in the beams, efforts be made to maintain consistent beam widths across all spans, with only the beam height being adjusted, in order to facilitate the connection of the reinforcement and the pouring of concrete. ③When the structural design is complex and it is difficult to complete the construction of a certain part in one go, a request is made to the designer regarding how to create concrete construction joints. ④After the elevation of the terrace surface is lowered, if there is a beam in the middle of the terrace and this beam connects to the interior area, it is necessary to determine whether the reinforcement bars of the beam should be bent at the lowered section or anchored separately; the design must address this issue. 2. Propose suggestions for modifying the construction drawings from the perspective of improving the quality of construction projects. ①When the plastering material for ceilings is designed to be the same 1:1:6 mixed mortar as that for walls, it is recommended to use a 1:1:4 mixed mortar for ceilings in order to improve adhesion. ② When the construction drawings do not specify waterproofing requirements for elevator shafts, bathroom sump pits, and fire water tanks, it is advisable to add a cement mortar waterproof layer on the outer walls of these pits and on the inner walls of the sump pits in order to improve the quality of waterproofing. 3. Suggestions for improving the construction drawings from the perspective of enhancing architectural aesthetics: ① When the parapet of a terrace meets an exterior window, check whether the height of the parapet is greater than that of the window sill; if so, the junction will not look aesthetically pleasing, and it is recommended to make design adjustments. ②Check whether the color separation lines on the exterior wall finish are connected; if not, it is recommended to seal them at the corners ； When there is no clear boundary between the exterior wall and the interior wall, consult the designer to determine where it is most aesthetically pleasing for the wall decoration to end on the interior wall, and whether the top and bottom surfaces of the protruding parts of the exterior wall should be decorated in the same way as the exterior wall itself. ③When the cross-sectional size of the columns gradually decreases as the floor level rises, and if the columns protrude from the exterior wall to serve as decorative elements on the facade, it is recommended not to reduce the cross-sectional size of those protruding sections in order to maintain consistent width from top to bottom. ④When columns are placed at the corners of brick walls in the building’s layout, and the angle between those brick walls is less than 90 degrees, if square columns are still used in the structural design, it is advisable to change them to polygonal columns based on the building’s layout, so as to prevent the column corners from protruding outside the wall and affecting usability and aesthetics. ⑤When there is a frame column on the left side of the elevator lobby (foreroom) that protrudes 10–20 cm beyond the wall surface, check whether the column on the right side protrudes by the same amount; if not, it is recommended to make it symmetrical on both sides. Following the procedure and approach of \"familiarizing oneself with the functions of the project to be constructed, familiarizing with and reviewing the plan dimensions of the project, familiarizing with and reviewing the elevation dimensions of the project, checking for any errors in the parts of the construction drawings that are prone to mistakes, and identifying areas that require improvement,\" the work of reading and reviewing drawings can be carried out in a systematic and comprehensive manner.