Steel structure engineering construction has to stop work in rainy days, and sometimes in order to catch up with the project progress, construction has to be carried out in rainy days. The construction task in rainy season is heavy. In order to ensure the quality of the project, do a good job in safety production, and ensure the completion of various planning and index tasks, we must make full preparations in ideology, organization, measures and materials as soon as possible, so as to implement the ideas and organize the construction.The implementation of measures, materials and construction in flood season should be well prepared.

 The general principle of steel structure construction in rainy season is to “do a good job in drainage, water retaining and waterproofing”. The general requirement is that the construction of indoor engineering will not be affected in rainy season, and the construction of outdoor engineering will not be interrupted in light rain. The construction will be suspended during the heavy rain period, and the construction can be started after the heavy rain, and the construction will not be affected after the rainstorm.But the construction quality in rainy days is lower than that in sunny days, so steel structure engineering is often carried out 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 speed up the construction period, what measures should be paid attention to? 

Construction drawing of steel structure engineering in rainy season

　　1.Collect meteorological information to make the first-hand preparation for the smooth construction in rainy season; the technician, under the leadership of the technical director, is responsible for compiling the outline of technical measures for rainy season construction, reviewing the technical measures for steel structure project in rainy season, and giving detailed guidance; organizing and coordinating the construction in rainy season, and following up the inspection of quality and safety; responsible for formulating detailed construction measures in rainy season and various aspects of construction and production technology.The storekeeper is responsible for providing materials, machines and equipment for construction in rainy season, preparing material plan and purchasing various steel structure materials required in rainy season.

 　　2.For the aspect of organizational structure configuration, the division of labor must be made clear for the on-site quality and safety management, and the responsibility should be assigned to each person.The project manager is responsible for the construction organization work in rainy season in each area, presides over the construction production meeting in rainy season, and makes overall arrangements for the personnel, finance and materials required for the construction in rainy season; the technical director is responsible for leading the preparation and approval of technical measures for construction in rainy season, and timely sends personnel to repair the temporary facilities for production and living, so as to ensure the safety of rainy season. 

 　　3.Lightning protection measures must be taken for the construction of steel structure engineering in rainy days. When stacking all formwork, the lower layer must be overhead with the ground to prevent rain soaking damage. The formwork should also be effectively covered. After the formwork release agent is applied, plastic cloth should be covered in case of rain to prevent the isolation layer from being washed away by rain.The formwork isolation layer washed by rain must be repainted before formwork closing.The steel also needs to be covered effectively, and the stacking site should have good drainage to ensure that the steel members will not be corroded by the immersion of rain water.

 　　4.Steel structure engineering generally adopts welding or high-strength bolts for connection. In principle, steel structure welding can not be carried out in rainy days, but processing shed can be built for welding. However, it is necessary to prevent the problem of unqualified welding seam caused by rain.The welding machine, welding wire and gas cylinder should be placed in the special shed to prevent the welding materials from being affected by moisture, and the quality problems during welding will cause great cost. 

Measures for steel structure construction in rainy season

　　5.Steel structure engineering can not be installed with high-strength bolts in rainy days, and there is no rain on the friction surface and high-strength bolts.For construction in rainy season, it is necessary to ensure the construction personnel’s need for rain proof water tools.Pay special attention to the protection of construction electricity.In case of rainfall, except for special circumstances, work at height shall be stopped, and personnel at height shall be evacuated to the safety inspection area, and the switch shall be cut off.For the component to be lifted, the water on the surface of the component should be cleaned first, especially the friction surface of the component should be cleaned, and the surface layer should be dry.

 　　6.There are also protective measures for temporary electricity use. Steel structure engineering needs to build temporary electricity use places. When it rains, it is necessary to do corresponding treatment. When there is no need to use electricity, the switch should be pulled off to prevent the occurrence of electric shock.There are also the rain proof measures for the scaffold of the steel structure engineering team. Before and after the rain, the fasteners of the scaffold must be inspected one by one, and the foundation of the scaffold must be checked first in the inspection process.In the process of inspection, the construction and inspection personnel must ensure that their own safety protection measures are in place, pay attention to anti-skid and anti falling, and prohibit illegal command.

 In fact, the construction of steel structure engineering is very good in rainy days, so as to ensure the installation quality of the project. But sometimes it is also force majeure to have to carry out construction in order to speed up the construction period. However, corresponding measures should be taken to ensure the construction quality of steel structure engineering.