Steel structure engineering construction has to stop in rainy days, and sometimes in order to catch up with the progress of the project in rainy days, construction tasks are arduous in rainy season. In order to ensure the quality of the project, do a good job in safety production, and ensure the completion of the tasks of various planning indicators, we must make full preparations as soon as possible from the ideological, organizational, measures and materials, so as to achieve ideological implementation and organizational fall. Practice, measures, materials and flood season construction should be well prepared and safe.
The general principle of construction of steel structure engineering in rainy season is "drainage, water retaining and waterproofing". The general requirement is that the rainy season of indoor engineering does not affect construction, the construction of outdoor engineering is uninterrupted in light rain, construction is suspended during heavy rain, construction can be completed after heavy rain, and construction will not be affected after heavy rain. But the construction quality in rainy days is lower than that in sunny days, so many times steel structure projects are constructed in sunny days to ensure the construction quality of steel structure engineering team. If the steel structure project needs to be constructed in rainy days in order to catch up with the construction period, what measures should be taken?
Construction drawings of steel structure engineering in rainy season
1. Collect meteorological information and make first-hand preparations for the smooth construction in rainy season; technicians are responsible for compiling the outline of construction technology measures in rainy season under the leadership of technicians, reviewing construction technology measures in rainy season for steel structure projects, and giving detailed guidance; organize and coordinate the construction in rainy season, and track and check the quality and safety; take charge of formulating detailed construction measures and construction production technology in rainy season. The warehouse is responsible for providing materials and equipment needed for construction during rainy season, compiling material plans and purchasing various steel structural materials required during rainy season.
2. In the aspect of organizational structure allocation, the responsibility for site quality and safety management must be clearly assigned to people. The project manager is responsible for the organization of construction in rainy season, presides over the construction production meeting in rainy season, and makes overall arrangements for the personnel, financial and material needed for construction in rainy season; the technical director is responsible for the preparation and approval of construction technology measures in rainy season, and timely dispatches people to repair temporary facilities for production and life, so as to ensure the safe passage of rainy season.
3. Lightning protection measures must be taken in the construction of steel structure projects in rainy days. All formwork must be overhead with the ground when stacked, so as to prevent the damage caused by rainwater immersion, and cover the formwork effectively. Plastic cloth should be covered when the formwork demoulding agent is applied, so as to prevent the isolation layer from being washed away by rainwater. The template isolation layer washed by rainwater must be re-painted before the mould is assembled. It is also necessary to cover steel effectively. The stacking site should have good drainage to ensure that steel members will not be rusted by rain water.
4. Steel structure engineering usually adopts welding or high-strength bolts to connect. In principle, the welding of steel structure can not be carried out in rainy days, but processing shed can be built for welding, but it is necessary to prevent the quality of welding seam from falling below the standard caused by drifting rain. Welding machines, wires and cylinders should be placed in special shed to avoid dampness of welding materials and quality problems during welding, resulting in high cost.
Measures for Steel Structure Construction in Rainy Season
5. Steel structure engineering can not install high-strength bolts in rainy days, and there must be no rainwater on the friction surface and high-strength bolts. In rainy season construction, the need of rainproof equipment for construction personnel should be guaranteed. Particular attention should be paid to the protection of construction electricity. When it rains, except under special circumstances, the operation at high altitude should be stopped, and the personnel at high altitude should be evacuated to the safety inspection zone to pull off the switch. For the components to be lifted, the water on the surface of the components should be cleaned first, especially the friction surface of the components, and the drying of the surface should be ensured.
6. There are also protective measures for temporary electricity use. Steel structure projects need to build temporary electricity use places. When it rains, they need to be treated properly. When they do not need electricity, they should pull and turn off the brakes to prevent electric shock accidents. There are also rainproof measures for the scaffolding of the steel structure engineering team. Before and after the rain, the fasteners of the scaffolding must be checked one by one, and the foundation of the scaffolding must be checked first in the process of checking. In the process of inspection, construction and inspection personnel must ensure that their own safety and protection measures are in place, pay attention to skid prevention and fall prevention, and strictly prohibit illegal command.
In fact, the construction of steel structure engineering is not necessary in rainy days, so as to ensure the installation quality of the project, but sometimes in order to catch up with the construction period, it is also irresistible to have to carry out construction, but it is necessary to do a good job of corresponding measures to ensure the construction quality of steel structure engineering.