Construction measures of Foshan steel structure during rainy season
Time：[2017-9-27] Hits：5278
First, Foshan steel structure project rainproof measures
Arrange special people to know the weather forecast in time and master the weather data in advance. Arrange the inspection management of special site in rain, do not comply with the rainproof measures or measures non-standard place, must subcontract deadline ordered rectification, especially for lightning protection measures must be carefully check all.
Two, Foshan steel formwork rainproof measures
When the formwork is stacked, the lower layer must be ground with the ground to prevent the rain from soaking and damaging. At the template stacking site, effective ground drainage measures must be taken to prevent rainwater from depositing.
Three. Rainproof measures for reinforcing bars
L for the site to place a longer time to prevent rain reinforcement steel cover, prevent serious corrosion of reinforcement. The steel stacking site must have good drainage to prevent rainwater from depositing and soaking the corroded reinforcement.
2 Foshan steel structure rainproof measures
To ensure the normal construction period, ensure the quality of the project. The main process of the project and the climate sensitive process, should be based on the characteristics of the rainy season construction, the preparation of the corresponding measures.
High strength bolts shall not be installed on rainy days, and no rain water shall be allowed on friction surfaces and high-strength bolts. During rainy weather, can not meet the requirement of production and can not guarantee the safety of construction, should stop construction. At this point, attention should be paid to ensure the safety of the work surface, set up the necessary temporary reinforcement measures. Steel structure hoisting must hang net in the outside of the building facade, building stairs, building adjacent edges and can not cover the holes to set up protective railing. For the components to be lifted, the water on the surface of the component shall be cleaned first, especially the friction surface of the component, and the surface layer shall be dried
3 、 welding of Foshan steel structure
Before the construction, should be in the operating platform than at the height of 1m welding with flame retardant woven cloth is tightly wrapped around the pillar, and the platform plane caves with asbestos clothgai Yan, so that the wind and the welding slag splashing down. In principle, outdoor welding is not performed on rainy days. Welding machine, welding wire, the cylinders should be placed in a special shed. So as not to damp the welding material.
4. Installation of high strength bolts for steel structure in Foshan
The use of high-strength bolt, high strength bolt with visual inspection, there shall be no rust, damage thread phenomenon, such as repair after use. Keep the connection clean and dry.
5, Foshan steel structure scaffolding rainproof measures
Rain, rain must be checked one by one to the scaffold fastener, and must check the scaffolding foundation is firmly in the inspection process. In the inspection process, construction and inspection personnel must ensure their own safety, protective measures in place, pay attention to anti-skid, fall prevention, is strictly prohibited command.
6, Foshan steel structure rain proof measures
All kinds of electrical leakage protection device must be sensitive, all kinds of construction line check, insulation outsourcing must be in good condition without damage, prevent leakage of rainwater electric wounding; outdoor setting electric welding machine, grinding machine, threading machine and other equipment should be set up under the upper canopy, take the method of preventing the rain soaked pad. Power line is not erected, bare or plastic wire, distribution box must rain. Metal mechanical and electrical equipment must adopt zero reliable protection, leakage protection device for motor switch box should be reliable. Any mechanical operator must be certified and wear insulated rubber gloves and insulated gloves as required. In case of heavy rain to stop all electrical and mechanical operations, the electric field of steel processing field must turn off the power, after the rain should timely check the organization safety performance of machinery, electrical appliances, rain weather prohibited lifting equipment and components and manual handling of materials or equipment etc.. The cable wires and wires used in the field are strictly forbidden to be soaked in rainwater or laid on wet ground. Overhead installation or underground installation and safe and reliable protection measures should be installed. Before the construction of the rainy season, the power supply, electric box, tower crane grounding, insulation and other projects shall be measured and recorded. After the rain, all electrical equipment and electrical boxes should be checked once. The doors of each electric box must be closed and must not be opened.
