Special construction scheme of steel structure

The template of special construction scheme for steel structure is as follows:

1. Foundation pit support and dewatering engineering

Foundation pit (trough) support and dewatering engineering with excavation depth exceeding 3m (including 3m) or not exceeding 3m but complicated geological conditions and surrounding environment.

ii. earthwork excavation

earthwork excavation of foundation pit (trench) with excavation depth exceeding 3m (including 3m).

3. Formwork engineering and supporting system

1. All kinds of tool formwork engineering: including large formwork, slipform, climbing formwork and flying formwork.

2. concrete formwork support project: the erection height is 5m or above; Erection span of 1m and above; The total construction load is 1kN/m2 and above; The concentrated line load is 15kN/m or above; Concrete formwork support project with a height greater than the horizontal projection width of the support and relatively independent and unconnected members.

3. Load-bearing support system: a full-house support system for steel structure installation.

iv. lifting and installation and disassembly works

1. lifting and hoisting works with unconventional lifting equipment and methods and a single lifting weight of 1KN or above.

2. Installation works with hoisting machinery.

3. Installation and disassembly of hoisting machinery and equipment.

V. Scaffolding Project

1. Erection of floor-standing steel pipe scaffolding project with a height of 24m or more.

2. Attached integral and piecewise lifting scaffold project.

3. Cantilever scaffold project.

4. Hanging basket scaffold project.

5. Self-made unloading platform and mobile operation platform project.

6. New and special-shaped scaffold engineering

6. Demolition and blasting engineering

1. Demolition engineering of buildings and structures.

2. Demolition by blasting.

VII. Others

1. Building curtain wall installation project.

2. Installation of steel structure, grid structure and cable-membrane structure.

3, manual digging reaming pile engineering.

4. Underground excavation, pipe jacking and underwater operation.

5, prestressed engineering.

6. adopt new technologies, new processes, new materials, new equipment and dangerous sub-divisional projects without relevant technical standards.

Safety precautions for steel structure construction

First, the project manager is the first person responsible for safety construction, and needs to be responsible for the safety construction on site. The construction team leader is the leader of safe construction and is responsible for the safety of the construction scope of the construction team on site. The safety and civilized administrator is a full-time person who guarantees the safety construction on site, and is responsible for the education, supervision and inspection of the safety construction. The safety supervisor of the team leader is responsible for the safety of the construction scope of the team and carries out specific safety construction measures.

second, implement the national policies and guidelines related to labor protection, strictly implement the relevant safety and civilized construction management systems and regulations of the unit, and the project manager shall be responsible for the construction site. Carry out the system of who is in charge of construction and who is in charge of safety, strengthen safety education, and adhere to the system of disclosure before class, inspection in class and regular meeting on Monday. Strengthen the propaganda work on safety construction, and hang relevant propaganda slogans and warning signs in a prominent position on the construction site to remind construction personnel to pay attention to safety.

thirdly, you need to wear a safety helmet when entering the construction site, and conduct routine inspection on the construction machinery and tools before daily use. In particular, wire ropes and seat belts need to be checked once a week to ensure that these facilities are safe. During the installation process, the site equipment, machines and tools, as well as the completed projects should be taken into account for certain safety protection. When the wind speed is 1 meters per second, sometimes the hoisting work should be stopped, and when the wind speed is 15 meters per second, all work should be stopped.

Fourth, wear gloves when installing and handling components and plates. When hoisting, if the steel wire rope is broken, broken wire rope and tangled wire rope should be replaced as soon as possible, and special types of work need to hold valid certificates. When drilling, you should wear protective glasses, take safety protection measures at the construction site, and set up scaffolding according to regulations, which can only be used after inspection. When installing wallboard, the operating platform of each layer of mobile scaffold should be firm, and corresponding anti-skid measures should be taken, such as pulling protective ropes and fastening safety belts.