What is the specific content of the construction organization design scheme of an office building project in Qinhuangdao? Here, Zhongda Consulting will answer your questions.
1 general situation of the project
This project is an office building of a unit in Qinhuangdao City, located at No.88×× Street. Frame structure construction area of 9485m? , the main body 11, local 11 floors, the first and tenth floors are 4.2 meters high. The second to ninth floors are 3.3 meters.
commencement date: ××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××××× The height difference between indoor and outdoor is 451mm.
2. Fire prevention design for vertical traffic:
This project is a fire prevention zone, with a fire elevator and passenger elevator, and two smoke-proof stairwells, one of which is used as the front room with the fire elevator.
3. Wall structure
The outer wall is made of 371 composite walls, with solid bricks with thickness of 121 on the outside and concrete blocks with thickness of 251 on the inside. Wall masonry should be horizontal @1111, vertical @511, build by laying bricks or stones with a layer of φ Φ6 251mm 251mm, square ring reinforcement Rachel M5.1 mixed mortar masonry, when wall masonry, 121 red bricks should be laid on both sides of doors and windows, the windowsill should be covered with 61 thick C21 fine concrete, and the interior walls should be 211 thick with concrete unless otherwise indicated.
4. Interior decoration
Ceiling: the bathroom is made of light steel keel PVC area board, and the rest are made of mixed mortar, with a thickness of 21mm
Floor: office, lounge, reception room, reception room, lobby, corridor and stairwell are made of 25mm thick marble slabs, and the bathroom and front room are made of 31mm thick non-slip tiles. The fire control room, power distribution room and water tank room are 25mm thick common terrazzo.
wall: the bathroom is tiled, and the rest is made of mixed mortar with a thickness of 21mm.
windowsill board: prefabricated art terrazzo windowsill board.
5. Exterior decoration
The exterior wall is made of beige tiles, light brown tiles and white tiles, so as to make a 911mm high-wall skirt with fake stones.
the outdoor steps are covered with marble.
6. Doors and Windows
The outer window is a single-frame double-glass aluminum alloy window, the inner door is a wooden door, the outer door is an aluminum alloy door, the stainless steel door, and the stairwell is a solid double-sided asbestos board fire door.
7. Roofing project
The roof APP is waterproof (8mm thick), plus 51mm thick reinforced concrete.
2. Structural design
1. Foundation
2. Precast concrete square piles are used for foundation, with a diameter of 351mm 351mm and a length of 12 m. The design value of single pile bearing capacity is 751KN, with C31 concrete, C11 concrete cushion and C35 concrete for bearing platform.
2. The section size of main beam: frame beam is 351 mm. The section size of the surrounding supporting beam is 511mm 511mm, and the concrete grade is C21.
Plate: the thickness of all plates is 111mm, and the concrete grade is C21.
Column wall: the column is a square column with a section of 611mm, 511mm and 511mm, and the shear wall thickness is 211mm. The concrete of the column wall is C31.
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