Project overview
The comprehensive teaching building of a middle school is located in a middle school in Ge City, Heilongjiang Province, with a road in the east and a company in the south. This project is a U-shaped building, with a length of 85.93 meters from east to west and 7 1.04 meters from north to south, with a total construction area of 13320.5 square meters and building heights of.
26.40m (frame), 17.70m (masonry).
The main part of teaching has four floors, the office part has six floors, the library part has three floors, the first to fourth floors on the east side of the teaching part are terraced classrooms, and the rest are 20 classrooms, 5 laboratories, 7 special classrooms, 2 computer rooms, 1 language laboratory, 5 lesson preparation rooms and 3 instrument rooms. The office includes 9 large offices, 25 small offices, 3 middle conference rooms, 1 large conference room, 6 dressing rooms, 1 electronic lesson preparation room, 6 spare parts warehouses, and 1 power distribution room. The library includes 6 stacks, 4 offices, 2 open-shelf reading rooms, 1 large arc lecture hall, 1 control room and 1 spare parts warehouse.
Structural form: mixed structure and partial frame structure, in which the foundation structure consists of independent column foundation, rubble strip foundation and concrete strip foundation. The elevation of foundation bottom surface is-2.9m. 。
Main structure: the main part of the teaching building is brick-concrete structure, and the floor of the stepped classroom is prestressed concrete beam-slab structure; The office part is a frame structure; Brick and concrete part
The following uses MU 10 ordinary sintered brick and M 10 cement mortar for masonry; +/-0.00 above, the masonry adopts MU 10 common sintered brick and M 10 mixed mortar; Frame structure parts+
The above masonry adopts clay hollow brick, and the masonry below 0.00 adopts M5 mixed mortar, MU 10 common sintered brick and M7.5 cement mortar.
Roof benzene board insulation, cement perlite slope, EPDM waterproofing membrane and
Rigid waterproof combination forms a double waterproof layer.
Doors and Windows: The outer doors on the first floor are stainless steel framed glass doors, and the inner doors are all solid wood doors. Windows are single-frame double glass plastic-steel windows, and indoor windows are single glass plastic-steel windows.
Indoor ceiling and wall plastering are mostly mixed mortar plastering, and bathroom walls are ceramic tiles.
Floor: Granite floor is used for corridors and stairs, compound floor is used for offices, and permanent non-slip and wear-resistant ceramic tile floor is used for classrooms, terraced classrooms, conference rooms, lecture halls, stacks and bathrooms.
Interior decoration: except for the camel-colored imitation mushroom stone exterior wall brick at the bottom corner, most of the other walls are light beige exterior wall bricks, painted with white exterior wall paint, and some walls are gray-blue mirror glass curtain walls.
Engineering characteristics
Due to the large cross-section and buried depth of the foundation and the large amount of earthwork excavation and backfilling, mechanical excavation and backfilling must be adopted, and appropriate drainage measures should be taken to prevent the foundation from being soaked by surface water and rainwater.
The main structure adopts a large number of cast-in-place concrete, and ring beams are set up layer by layer. The lintel leads to the increase of formwork investment and steel bar processing capacity. Therefore, it is required to make a good construction plan on site to ensure the investment of funds, materials and personnel.
The engineering structure is complex, and all kinds of pipelines are buried in walls and floors, so the construction must be strictly controlled.
The bearing beam of the lecture hall is prestressed concrete beam with unbonded steel strand, and the beam length is12.96 m. Detailed construction scheme and technical quality assurance measures should be formulated during construction.
Axis control and curvature control of arc lecture hall grid and arc wall should be the focus of construction.
This project is located in the campus, and the construction of the project may have some impact on teaching, life and environmental sanitation, so measures should be taken to solve it in the construction process.
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