Talking about the construction scheme of formwork project of garden residential building project?

Construction scheme of formwork engineering for garden residential project

I. Project Overview and Information

* * The first phase of the project consists of underground garages, buildings 28#, 33#, 36#, 37# and 38# and S5 shops. Buildings 28#, 33#, 36#, 37# and 38# are 18-story frame-shear wall structures, with a total construction area of 49600m2, a total height of 59.4m and a maximum height of 5. 1m in the basement. Template materials are pine square timber, 2cm thick plywood, shaped steel formwork, steel pipe bent support, and some are supported by wood.

Second, the operation process and support system

(1) Operating conditions:

1, spring axis, leveling point ++50cm.

2, column steel binding, and completes the concealed engineering acceptance records.

(2) Calculation of operation flow and supporting system:

2. 1 Operation process:

Template and support frame adopts φ48×3.5 standard steel pipe and its supporting fasteners, column template and beam bottom plate adopt 5cm thick wood, column hoop adopts 5cm× 10cm square wood and steel card, and the column is fastened every 50cm; The steel pipe spacing of the cross arm at the bottom of the beam should not be greater than 80cm, the vertical spacing of the vertical poles should be the same, and the horizontal spacing should be close to the horizontal square wood at the beam side; Wall formwork, beam side formwork and floor formwork are made of 2cm plywood and bamboo veneer, and the back is made of 5cm× 10cm square timber. The distance between the back of wallboard is not more than 30cm, and the vertical distance between purlins is 50cm. It is fixed with double steel pipes and double circular arc fixtures and bolts, and the horizontal distance is 60cm. The spacing between side timber at the bottom of floor slab and beam slab is not more than 40cm, and the lateral spacing between steel pipe frames at the bottom of slab is not more than1m.

The strength, stiffness and stability calculation of formwork support system can be found in the special construction scheme.

A solid sidewalk mat should be laid on the formwork, and it is forbidden to trample the floor reinforcement. When pouring concrete, the formwork shall be attended by special personnel, and the phenomena such as slurry leakage or formwork expansion shall be handled in time to prevent the concrete from being deformed such as cavities, honeycombs and pits, and the size exceeds the design requirements and construction specifications.

Third, the template acceptance

After the template is established, it will be inspected by the team first, then rechecked by the project department, and finally accepted by the company's security department. During acceptance, check whether the formwork and supporting system meet the design requirements according to the construction organization design, and check the safety measures during construction. If the acceptance is unqualified, the next working procedure shall not be carried out.

Fourth, the template removal

1. When pouring concrete, the form removal test block which is naturally cured under the same conditions as the on-site concrete shall be reserved. For concrete with beam-slab span less than 8m, the concrete strength should reach more than 80% of the design strength; For the concrete whose beam-slab span is more than 8m and the concrete strength of cantilever members should reach more than 100% of the design strength, formwork removal is allowed. Form removal shall be applied by the carpenter's monitor and submitted to the technical director of the project for approval. The concrete strength test report shall not be removed until it is checked and signed by the supervision engineer.

2. The order of form removal is opposite to that of template installation. The general order is column formwork, beam side formwork, floor formwork bottom formwork and beam bottom formwork. When removing the formwork, the surface of the operating member and the formwork itself should be avoided as much as possible. Remove the bottom die for the horizontal tie rod, and then dismantle the formwork support, leaving 1-2 for each keel. A cordon should be set up in the formwork removal area and supervised by special personnel, and irrelevant personnel are strictly prohibited from entering. It is forbidden for operators to stand on the formwork being demolished, and it is forbidden to leave hanging formwork that has not been demolished.

3. The operator stands in the gap of demolition, demolishes the remaining supports nearby, and makes the keel fall freely (the floor is higher, and the formwork falls on the frame with double-layer bent), hooks the formwork, and after all the formwork in this section is demoulded, it is transported out, sorted, repaired, stacked in the designated place and reused.

Verb (abbreviation for verb) transport road and working environment

Before pouring, the warehouse surface should be provided with a horse stool and a 5cm board, the hole and limb of the operation surface should be protected in place, and isolation protection measures should be set for vertical operation.

Six, concrete conveying method targeted safety measures

This project adopts commercial concrete pumping, and special personnel should be assigned at the gate of the construction site to monitor traffic safety to prevent traffic accidents caused by vehicles entering and leaving; The position of the delivery pump should be convenient for vehicles to pass through; The pumping pipe should be fixed on the outside of the elevator shaft or scaffold, and the horizontal conveying pipe should be placed on the springboard, which is convenient for the operators to operate and walk, so as to prevent the floor reinforcement from being trampled.

For more information about project/service/procurement bidding, and to improve the winning rate, please click on the bottom of official website Customer Service for free consultation:/#/? source=bdzd