? In the construction drawing review, the routine review project is the basic review project to ensure the quality of the construction drawing, and the key review project is the project that is prone to problems or will cause serious consequences once problems occur in combination with previous engineering experience. Doing a good job in construction drawing review can also reduce or avoid unnecessary design changes and on-site visas, while ensuring quality, investment and construction period.

First, the main points of the general review of drawings

General:

1, check whether the elevation, axis and size of the structure are consistent with the architectural drawings;

2. Check the rationality of earthwork balance on site;

3, check the corresponding technical requirements of mass concrete;

4. Check the rationality of the setting position of post-cast strip, avoid blocking where the post-cast strip is not stitched in combination with construction subcontracting, and make construction arrangements in combination with drawings to avoid blocking where the post-cast strip is not stitched;

5, check the rationality of joint practice of post-cast strip, especially in the basement.

Key points:

1, check the rationality of structural joints, including the influence on building function and construction organization.

Two. Key points of design parameter review

General:

1, check whether the live load values of different functional areas are reasonable;

2. Check whether the parameters of earthquake and wind load are correct;

3, check the concrete, surface, masonry and other load values are reasonable;

4. Check whether the design grade of foundation, the safety grade of concrete structure, the importance of building seismic fortification, the seismic fortification intensity, the seismic grade of concrete structure in each part and the environmental category of concrete structure are correct;

5. Check whether the steel grade, concrete grade and protective layer thickness of each part are reasonable, and choose economic materials such as cold-rolled ribbed steel bars;

6. Check the rationality of buried layer of the structure;

Key points:

1. Check the load of special functions, such as large businesses, large catering kitchens and large computer rooms.

Three. Key points of basic drawing review

General:

1, check the rationality of the elevation between pile top, pile cap and bottom plate;

2. Check whether the computer room of the civil air defense basement has a steel bar head drawn from the foundation for grounding equipment in wartime.

Key points:

1. Check the safety, rationality and economy of the foundation form in combination with the survey report and site conditions;

2. Check the consistency between the bearing layer of natural foundation and the survey report;

3. Check the positioning of piles and columns and the consistency of architectural drawings;

4. Check the relationship between natural foundation and staggered platform, which generally meets1:2;

5. Check whether the bearing platform, natural foundation, sump, equipment ditch and drainage ditch conflict with the drawings of buildings and equipment.

Four. Key points of basement drawing audit

General:

1, check whether the basement water supply, fire fighting and spraying pass through the beam, and consider its safety if it needs to pass through the beam;

2, check the clear height of the basement driveway, generally not less than 2.2 meters;

3, check whether the nodes of civil air defense drawings conflict with the structure and architectural drawings;

4, check whether the reserved hole on the basement side wall is consistent with the direction of equipment and pipes;

5. Check the impermeability grade of the basement, consider the influence of water buoyancy on the basement structure design, and comprehensively evaluate the rationality and economy of the floor design.

Key points:

1, check whether the basement adopts structural slope or building slope, if the structural slope should meet the corresponding slope and groove requirements;

2, combined with equipment drawings, check whether the clear height of the basement meets the requirements of building codes.

5. Main points of drawing approval of main girder structure

General:

1, check whether the elevation of the surrounding beam bottom is consistent and whether it corresponds to the opening of the building doors and windows;

2. Check the thickness of the corresponding wall under the secondary beam, and the protruding part of the beam angle should be in the secondary room, such as bathroom and kitchen;

3. Check the deformation and cracks of the long-span cantilever beam, and consider using reverse arch to deal with large deformation;

4. Check whether the position and load of the beam used for hoisting equipment in the machine room and roof meet the requirements;

5, check the bathroom beam height and equipment, piping settings;

6. When the beam of the surrounding beam is high, check whether the air conditioning hole passes through the beam, and if necessary, embed the sleeve in a reasonable position;

7. Check whether the beam and slab in the park meet the load of covering soil and fire fighting vehicles;

8. Check whether the beam and slab in the construction area meet the requirements of construction load, such as material stacking and construction vehicles.

Key points:

1. Check that the layout of beams does not affect the building plane of the next floor, such as living room, dining room and master bedroom.

2. The layout of the beam must meet the requirement that the clearance at the bottom of the beam is not less than that of the building;

3. Check that the elevation of beam bottom at the elevation difference should be annotated or lower than the elevation of low-elevation slab bottom;

4. Check whether the layout of the beam affects the space requirements of the owner's room after the bay is opened.

Key points of checking intransitive verb main board structure diagram

General:

1, the elevation of the inspection board shall be consistent with the architectural drawings;

2, check the bathroom, balcony, kitchen, etc. The drip board is consistent with the architectural drawings;

3. Check whether the first floor adopts structural layer or building layer, and whether the load is transferred to the foundation;

Key points:

1, check the thickness of long-span slab, and consider the influence of natural vibration frequency on comfort besides the bearing capacity of the structure;

2. Check the reinforcement practices at the corner of the long-span structure reinforcing plate and the structural practices at the convex corner of the plate;

3. Check that the height difference line at the descending plate does not affect the building space of the next floor;

4, check the embedded pipe in the plate, generally no more than two layers, if more than two layers, it is necessary to increase the thickness of the plate, add extra steel, if there is a large embedded pipe, you need to reserve a pipe slot.

Seven. Key points of drawing examination of wall column structure

General:

1, check whether the hole through the wall affects the mechanical properties;

2. When the owner needs to get through, check whether the shear wall layout affects the room;

3. A concrete ridge with a height of 200mm should be designed around the toilet, and a concrete ridge with a height of 650mm should be designed in the hot and cold water pipes;

4. The wall in contact with the soil should be a concrete wall or a plain concrete sill at the lower part, which is 200mm higher than the soil plane.

5, check the fire box hole weakened partition, when the hole is larger, constructional column can be used;

6. When the thickness of shear wall or concrete column is greater than the thickness of partition wall, the protruding part should be set in the secondary room;

Key points:

1, check the basement wall pipe and reserve waterproof casing,

Eight. Key points for drawing review of other structural parts

General:

1, the lower part of floor-standing doors and windows should be designed with plain concrete ridge, not less than 50mm；;

2, when there is a glass curtain wall or large awning, etc. Embedded parts should be set in the main structure;

3. Check the beam around the reserved additional space, the elevation design should be consistent, the embedded parts of the additional space can be set on the upper part of the beam, and the load of the additional space should be considered;

4, check the kitchen flue reserved hole;

5. Check whether the reserved holes of equipment pipelines passing through shear walls, columns and beams are marked, and check with the drawings of equipment pipelines.

6, check whether the balcony ridge requirements are consistent with the architectural drawings;

7. Check whether there are constructional columns at the root and end of the wall of the cantilever balcony;

8, the place such as roof and larger terrace should have structural slope;

9, air conditioning board and window sill board should be cast-in-place concrete, the thickness should not be less than 80mm, its position, size and elevation are consistent with the architectural drawings and elevation, and ensure the clearance and leave holes to meet the building requirements;

10, check whether the setting, size and elevation of building frames are consistent, and consider the influence of frame load on connected structures;

1 1, transportation and installation holes should be reserved for large equipment installation;

12, explosion-proof holes and explosion-proof glass should be considered in the boiler room;

13, the flue and parapet out of the roof are preferably concrete structures;

14, the exterior wall of the roof is preferably concrete structure. If it is designed as a masonry wall, it shall ensure that the bottom is a concrete structure with a height of not less than 50mm；;

15. Check whether the position, size and elevation of the awning are consistent with the building. If it is designed as a steel awning, embedded parts should be reserved;

16. When there are walls on both sides of the bay window, the side walls should be designed as cast-in-place concrete, which should be poured integrally with the structure;

Key points:

1, check the load of adding space and pre-installed elevator;

2. Check whether the clear height of the stairwell meets the specification requirements. The clear height of stair section is not less than 2200mm, and the clear height of platform section is not less than 2000mm.

Next, we will load the checklist of Vanke's construction drawings, as well as some places worth learning in Vanke's drawing review for your learning.

For example, Vanke will require that every structural practice must be inspected in accordance with the unified technical standards and special requirements of the project (the annex to the general tender).

In addition, there are clear requirements for building materials, masonry mortar, thermal insulation, internal wallboard and constructional column ring beam.

The drawings of other plates are also very detailed, and many values will directly give the reference range.

A, the basement plan review points

Vanke has specified the dimensions and specifications of the underground garage, and the following parameters shall prevail when reviewing the drawings:

And the key points of Vanke's plan review for the basement are also detailed:

Second, the first floor plan audit list

Third, the standard layer plan review form

The picture comes from the internet.