Scaffolding construction (plan) submission form

Project name: Residential 1#, 2# Building Number:

To: Supervision Company

We have completed the preparation of the scaffolding construction (plan) for building 1# and 2# in the community, and it has been reviewed and approved by the superior technical person in charge of our unit. Please review it.

Attachment: Scaffolding construction (plan)

Contractor (chapter):

project manager:                 

Date:

Professional supervision engineer review opinions:

Professional supervision engineer:

Date:

Supervisory engineer review opinion:

Project supervision agency:

Supervisory engineer:

Date:

Scaffolding construction plan

Project Name: Residential Quarter 1#, 2# Building Project

Construction unit: Construction Co., Ltd.

Approver:                  

Auditor: 　　　

Editor:                 

Date of preparation:

1. Scaffolding Project Erection and Dismantling Plan

(1) Construction requirements

1. In the construction phase of the structure, a single-row outer rack of fastener steel pipes is used.

2. In the decoration stage, a single-row outer rack of fastener steel pipes is used.

3. Before construction, organize safety personnel and scaffolders to carefully review the drawings, be familiar with the drawings, master the construction requirements of the project for scaffolding, and formulate detailed targeted and operable technical explanations according to the actual situation of the project structure. The key units shall make an on-site confession and determine the construction method on the spot. At the same time, the construction team put forward project quality requirements and project schedule requirements.

4. Provide a special material storage space for the construction team that puts up a rack.

5. Due to the small size of the construction site, carefully calculate the number of materials (such as rack pipes, dense mesh nets, safety nets, color striped cloth, etc.) required for each section of the shelf, and enter the site as needed. Try to ensure that there are fewer shelf materials on site. Those that meet the requirements will be temporarily stacked in a dedicated warehouse and padded with wooden squares.

6. After the rack tubes and other materials enter the site, the quality will be carefully checked on site, and the materials that do not meet the requirements will be returned immediately.

7. The inner scaffolding adopts a bowl-buckle scaffold that can be assembled and disassembled flexibly.

8. Before scaffolding is constructed, a detailed construction plan shall be prepared and submitted to relevant departments for approval before construction can be carried out.

(2) The design and construction method of the outer shelf

1. Construction method of single-row outer scaffolding of steel pipe for structural and exterior decoration fasteners

1) Basic structure

The scaffolding of this project is a single-row steel pipe scaffold with fasteners for structural construction and exterior decoration construction, and it is in accordance with the JGJ130-2001 construction and construction fastener steel scaffolding safety technical code. The designed step distance is 1.5m. In order to cooperate with the construction of the main structure wall group, large crossbars can be added according to the actual height of the working layer; during the construction stage of the structure, the gable and other parts of the load should be reinforced as follows: Layered with notoginseng lime soil Backfill and ram, place a full-length 50-thick scaffold board on the pole as a backing board.

2) Installation method

The scaffolding must be erected in line with the construction schedule at one time and the erection height shall not exceed two steps above the adjacent connecting wall. After each step of scaffolding, the step distance, longitudinal distance, verticality of the cross bar and the vertical pole should be corrected according to the regulations.

(1) The bottom of the scaffold must be pulled through, and the position of the pole must be found according to the requirements. The foundation shall be tamped and stabilized with 3:7 lime soil. The length of the upper bunk shall not be less than two spans and the thickness shall not be less than 5cm thick wooden boards. Drainage ditch shall be provided on the outside of the scaffold. , Maintain good drainage performance. The scaffolding must be equipped with vertical and horizontal sweeping rods. The vertical sweeping rod should be fixed on the vertical pole with right-angle fasteners at a distance of no more than 200mm from the base epithelium. The horizontal sweeping rod should be fixed on the vertical pole immediately below the vertical sweeping rod with right-angle fasteners. When the foundation of the vertical pole is not at the same height, the vertical sweeping pole at the high place must be extended to the low place by two spans and fixed with the vertical pole, and the height difference is not more than 1m. The shelf plane is arranged along the outline of the building.

(2) It is strictly forbidden to mix steel pipes with an outer diameter of 48mm and 51mm for vertical poles. The distance between the inner rod and the outer wall is 50cm, and the outer rod is 1.7~2.0m from the outer wall. The joints of the vertical poles should be staggered and arranged in different steps. When starting to erect the poles, a throwing support should be set every 6 spans until the connecting wall is installed and stabilized before it can be removed according to the situation. The top of the pole is 1m above the parapet wall and 1.5m above the cornice epithelium.

(3) The frame and the structure are connected by rigid connection, the horizontal distance is not more than 6m, and the vertical distance is not more than 4m. Set up from the first vertical horizontal rod of the bottom layer, and each layer is equipped with a pull connection. The connecting wall rods or tie bars should be arranged horizontally, and diagonal connections are strictly prohibited. The scissor support is 10 steps per dozen, 5 steps per rotation, and there must be poles at the intersection. The number of scissor supports in each group is singular, and no even numbers are allowed.

(4) The large crossbar, that is, the longitudinal horizontal rod, is set on the inner side of the vertical rod, and is fastened with the vertical rod with cross fasteners, and shall not be omitted. The joint positions of the upper and lower horizontal rods should be staggered and arranged in different vertical distances, which are not synchronized or The distance between two adjacent joints of different spans in the horizontal direction is not less than 500mm, and the distance from the center of each joint to the nearest main node is not more than 1/3 of the longitudinal distance. This project uses wooden scaffold boards, and vertical horizontal rods are used as supports for horizontal horizontal rods. The horizontal deviation of the same row of large crossbars shall not be more than one thousandth of the total length after the crossbars are connected.

(5) The small cross bar, that is, the horizontal horizontal bar, should be arranged close to the vertical bar, and it should be fastened with right-angle fasteners and it is strictly forbidden to remove it. The center distance of the two right-angle fasteners at the main node should not be greater than 150mm, the outer elongation of the end against the wall should not be greater than 500 mm, and the distance to the decorative surface of the wall should not be greater than 100 mm.

(6) Scaffolding board: it must be laid flat and tightly, and it must be 120~150 mm away from the wall without flying board. The scaffold probe should be fixed on the support rod with 3.2 mm galvanized lead wire. The scaffold boards at the corners and at the entrance of the ramp platform should be reliably connected with the horizontal horizontal rods to prevent sliding. Two guardrails and toe boards must be installed on the work floor where the scaffolding boards are laid. The upper railing height is 1.2 m, the middle railing is set in the middle, and the toe board height is 180 mm.

(7) Safety net: a dense mesh safety net must be used to close the inside of the outer shelf. The safety nets must be firmly connected up and down, and fixed to the frame. The vertical net is three-dimensionally closed from the bottom sweeping rod to the top of the shelf. A horizontal safety net is placed between the double rows of shelves and the lower layer of the scaffold on the work floor.

(8) Protective shed: Fix entrances and exits according to the conditions of construction personnel entering and exiting the building. Non-entrances and exits are closed. The roof of the protective shed is covered with 50 mm thick scaffolding. The total length of the passage is not less than 6 m. Both sides are landing and closed with dense mesh.

2. Demolition Requirements

1) The preparatory work before demolition should meet the following requirements:

Comprehensively check whether the fastener connections, wall fittings, and support systems of the scaffold meet the structural requirements, and improve the program removal sequence and measures based on the inspection results. They can only be implemented after the approval of the company's competent department. The person in charge of the project department should conduct the removal. Safety technology Confession, debris on the scaffold and ground obstacles should be removed.

2) When removing the scaffold, the following requirements should be met:

The dismantling operation must be carried out from top to bottom, and simultaneous operation up and down is strictly prohibited; connecting wall parts must be dismantled layer by layer. It is strictly forbidden to dismantle the whole layer or several layers of connecting wall parts before dismantling the scaffolding. The height of section removal should not be greater than 2 steps. If the height difference is greater than 2 steps, additional wall elements should be added for reinforcement; when the scaffolding is removed to the height of the last long pole (about 6.5 m), temporary throwing and reinforcement should be erected at the appropriate position before removing the wall elements.

3. The following requirements shall be met when unloading:

It is strictly forbidden to throw all the components and parts to the ground. The components and parts transported to the ground should be inspected, repaired and maintained in time, and placed neatly at any time according to the variety and specifications.

(3) Safety inspection of the shelf

1. Establish safety production assurance measures

1) Establish a safety production leading group, with the executive manager as the group leader, and the group members as the chief engineer, production dispatcher and safety officer. Ensure safe production in the organization. Establish an institutional guarantee system and implement a post responsibility system. Safety issues and hidden dangers must be rectified, and the handling results must be recorded.

2) To do a good job in the erection, management, dismantling and technical disclosure of each stage, establish a handover inspection system during implementation, and strictly operate and manage strictly during the construction process.

2. Inspection and acceptance of scaffold erection quality:

Contents of inspection: various regulations of frame design, reliable connection of nodes, verticality of vertical poles and horizontal deviation of horizontal poles, paving of working layers and safety protection measures.

Inspection time: After the erection is completed, the inspection shall be carried out every day, and the inspection shall be carried out after the heavy wind and heavy rain.

3. Rules for erection and use of scaffolding

1) The scaffolding shall comply with the following regulations when erecting:

(1) Scaffold erection works at high places. Operators must have special work permits and be certified to work. They must wear safety helmets, fasten seat belts, and wear non-slip shoes. It is strictly forbidden to work after sprinkling.

(2) After the erection of each stage is completed, the erection can be continued only after passing the inspection and acceptance according to the prescribed standards.

(3) When setting up a shelf, draw the work area, set up fences or warning signs around, and set up special personnel to direct them. It is strictly forbidden to enter by non-operating personnel. The erection personnel should command uniformly, respond from top to bottom, and coordinate their actions, especially in cross-working projects.

2) When using scaffolding, the following regulations should be observed:

(1) The construction load on the working floor shall be adopted according to the design;

(2) It is forbidden to dismantle the basic rods, connectors and connecting wall parts at will, and it is forbidden to increase the working height at will;

(3) People should strengthen self-protection during work, and check for abnormal conditions before work;

(4) After the operation is completed, the shelf surface should be cleaned up in time. Under any circumstances, it is strictly forbidden to throw materials and objects downwards and dump garbage.

(5) The foreman should have a detailed written confession before the construction, and the person in charge of the shelf worker insists to make a pre-class speech before going to work every day, and keep a record.

2. Safety measures for scaffolding operations

1. Steel pipe scaffolding should be steel pipes with an outer diameter of 48~51mm and a wall thickness of 3~3.5mm, without serious corrosion, bending, flattening or cracking.

2. Qualified steel fasteners must be used for the connection of steel pipe scaffolding rods, and lead wires and other materials must not be used for binding;

3. The outer scaffolding pole spacing steel pipe shall not be greater than 1.8m, the large crossbar spacing shall not be greater than 1.8m, and the small crossbar spacing shall not be greater than 1.5m;

4. The scaffolding must be firmly connected according to the floor and the structure. The vertical distance of the pulling joint shall not exceed 4m, and the horizontal distance shall not exceed 6m. The strength of the material used for the tie should not be lower than the strength of the double-stranded 8# lead wire. Do not use flexible materials to tie the tall shelves. Reliable support is set at the tie point:

5. The operation surface of the scaffold must be covered with scaffold boards, and the distance from the wall shall not be more than 200mm, and there shall be no gaps, probe boards, and flying boards. The lower layer of the scaffold board is equipped with a horizontal net. On the outside of the operating surface, there should be two guardrails and a toeboard or a guardrail, hung a safety net, and the lower mouth should be tightly sealed, and the protection height should be 1m. It is strictly forbidden to use bamboo bar as a scaffold;

6. The scaffold must ensure that the overall structure is not deformed. For scaffolds with a height of more than 20m, scissors must be installed longitudinally, and the width must not exceed 7 rods, and the angle with the horizontal plane should be 45-60 degrees. If the height is less than 20m, oblique support must be installed;

7. Special scaffolding and tall scaffolding with a height of more than 20m must have a design plan;

8. The internal and external load-bearing scaffolds used in the structure shall not exceed 2646N/㎡. The load of the interior and exterior scaffolding used for decoration shall not exceed 1960N/㎡;

9. The horizontal and vertical distance between the outer edge of the construction in progress (including scaffolding equipment) and the edge of the external overhead line shall not be less than 3m;

10. Before all kinds of scaffolds are put into use, the person in charge of construction must organize the person in charge of erecting and using the scaffold and safety personnel to conduct inspection together, and perform the handover and acceptance procedures. Special scaffolding, prior to erection and disassembly, the technical department must prepare a safe construction plan and submit it to the next level of technical leadership for approval before construction.