Talking about the First Construction Project of Assembled Integral Shear Wall Structure in Shanxi Province?

this project is located in Taiyuan city, with a net planned land area of 64,748.3 square meters, which is constructed in two sections, with a total construction area of 129,4 square meters in the first section of the project. * * * Construction of four single buildings, with a planned total of 928 households. The overall prefabrication rate is over 35%, and the assembly rate is over 67.4%. It is the first construction project of assembled integral shear wall structure in Shanxi Province.

The five concepts of project organization and construction are: wisdom, ecology, innovation, education, party building and the use of intelligent digital management and bim technology to build an intelligent construction site; Construction management is integrated with technological innovation, knowledge innovation and management innovation to create an innovative construction site; Create an educational construction site through internal education, training base, invitation and guidance.

The technology adopted in this project for five floors above ground is to assemble the integral concrete shear wall structure system and grouting sleeve system. This system has the following features: mature and reliable technology and good practicability; Stable quality, convenient on-site operation and high construction efficiency; And that structural integrity is bet guaranteed.

site layout

the construction site is provided with a circular closed construction road with a width of 1m and a turning radius of 12m in the road turning area, so as to ensure the smooth turning of the transport vehicle.

each building is equipped with a 7528 tower crane, which can lift 6 tons at the arm length of 5 meters.

when the main body is constructed to the 12th floor, the indoor construction elevator will be installed for vertical transportation of the 1th floor and below.

The two underground floors are constructed by traditional technology, and the garage is connected by traditional technology, and steel scaffolding is erected along the periphery of the underground building to the top of the four floors above ground.

structural construction of reinforced area at the bottom of shear wall

The reinforced area at the bottom of shear wall at the first floor is constructed by traditional structure, and the concrete of wall body is cast in place. The floor slab is constructed by the technology of laminated slab and cast-in-place reinforced concrete layer, and the prefabricated structure of standard floor is constructed from the fifth floor.

industrialized transportation

Prefabricated components are produced and delivered by Shanxi Jiantou Yuanda Building Industrialization Co., Ltd.;

transport it to the construction site by a 13.5m special truck, and leave it in the designated position on the site by using the car body and the onboard transport shelf;

the car head goes back and forth separately to continue transportation;

horizontal components such as prefabricated balcony, laminated board and air conditioning board should be stacked in sequence according to the hoisting plan, and other components such as prefabricated beams and stairs should be stacked in sequence.

a car head is reserved at the construction site to move the component transport shelves when necessary.

Positioning of reinforcement in the transfer floor

Precast wallboard realizes the connection of upper and lower reinforcement through grouting sleeve, which requires high accuracy of the reinforcement position, and adopts the same perforated positioning steel plate from the concrete component manufacturer to realize the reinforcement positioning.

Precast wall installation

Set out the positioning sideline and 2mm control line of precast external wall on the floor according to the positioning axis;

Before hoisting, draw a 5mm horizontal control line of the wall on the prefabricated wall;

check the vertical connecting steel bars embedded in the floor, correct the misaligned steel bars with sleeves, and place steel gaskets.

put a sealing sponge strip at the insulation layer of the external wall panel to avoid the grouting material from flowing out during sleeve grouting.

floor operators use walkie-talkies to command tower crane hoisting in real time.

when the floor is 1mm below the wall, slow down the lowering speed;

guided by professional operators, land in place;

The gap between precast wall and floor is styled as closed empty warehouses with different sizes;

The length of the sub-bin should not be greater than 1.5m The joint should be tightly plugged to ensure no slurry leakage.

grouting construction

after 24 hours of caulking, prepare for grouting. Mix the special grouting material according to the design and product description.

mechanical stirring is adopted when mixing (the stirring time is not less than 5 minutes);

after stirring evenly, let it stand for three minutes to test the fluidity of the slurry.

if the fluidity test is qualified, the compressive strength test block will be retained and grouting will be started;

pressure pump is used for grouting, and grouting is carried out from the lower hole. When the grouting material flows out from the upper grouting hole, the upper grouting hole should be blocked, and the pressure should be maintained for 3 seconds when the last grouting hole is blocked to ensure the grouting quality.

the grouting material that is stirred each time needs to be used within 3 minutes, and the grouting of the next component is started.

mechanical and electrical installation

The wiring boxes in the assembled building electrical piping and laminated board are pre-embedded in the component factory at one time, with correct positions and firm fixation. Locks are provided in all four directions.

after the laminated plate is hoisted in place on site, the electrical conduit is laid;

the conduit all passes under the truss reinforcement, and then it is connected with the junction box.

before construction, rationally optimize pipelines, adjust lines, reduce intersections, and firmly fix the conduit above the floor.

in order to ensure the connection between the embedded pipe in the prefabricated wall and the upturned pipe on the corresponding floor, the positioning of the upturned pipe must be accurate, and the position of the embedded pipe should be reserved in the size of hardcover drawings and component production drawings, and it should be vertical. Ensure that the upturned pipe is in the corresponding operation hole.

after the prefabricated wall is in place, clean the nozzle of the line pipe in the operation hole, and connect it with short pipes and joints with the same diameter to ensure that the line pipe is straight and unobstructed;

after the operation hole is installed and accepted, the hole is blocked with mortar.

assembly and decoration

installation of floor heating module

laying of balance layer

installation of keel

installation of wall surface

laying of floor tiles

assembly of furniture

appreciation of finished products

standardized construction of safety, civilization

office area

activity room

party building activity room

intelligent exhibition hall

Fire extinguisher box

Meeting room

Meeting room

Reception restaurant

First-class distribution box protective shed

Safety experience area

First-aid experience

Standard wearing safety helmet

Precast member falling experience

Cave entrance falling experience

Model exhibition area

Construction area

Access control system

Safety warning. Warning board

plane hole protection

corner protector

conduit protection box

stair protection railing

stair finished product protection

fire safety protection shed

installation and processing shed

temporary electrical bridge

mobile sprinkler truck

road sweeper

on-site sprinkler system

rainwater recycling system. > solar street lamp

monitoring system

living area

workers' canteen

workers' dormitory

I believe that after the above introduction, everyone has a certain understanding of focusing on the first construction project of assembled integral shear wall structure in Shanxi Province. Welcome to visit Zhongda Consulting for more information.

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