Double-thread steel column head connection type steel rib floor support plate-beam-column system and using method thereof

Abstract

The invention relates to the field of structural engineering, in particular to a double-thread steel column head connection type steel rib floor support plate-beam-column system and a using method thereof. The system comprises steel pipe columns with inner-ring threaded steel bar column heads, steel beams with inner-ring threaded steel bar column heads, bottom-mounted steel rib combined floor support plates with outer-ring threaded half-covered steel column heads, outer side steel formworks with outer-ring threaded half-covered steel column heads, large hexagon nuts for fixing the outer-ring threaded steel bar column heads, cylindrical nuts for fixing the inner-ring threaded steel bar column heads, hinge connecting plates, bolt groups for connecting steel ribs with the hinged connecting plates, and bolt groups for connecting the hinged connecting plates with steel beams. Compared with a traditional plate beam column structure, the novel assembly type integrated structure system is freeof field welding, little in wet operation and high in connecting performance, and the assembly rate can reach 90%.

Description

technical field [0001] The invention relates to the field of structural engineering, in particular to a double-threaded steel column head connected steel frame floor deck-beam-column system and a use method thereof. Background technique [0002] In the past two decades, the rapid development of my country's construction manufacturing industry has made great contributions to economic prosperity and social progress. However, the rapid development of the construction industry has also caused waste of resources and damage to the environment to a certain extent. To this end, in order to deal with a series of problems caused by the construction industry, such as excessive exploitation of resources, destruction of the natural environment, and poor environment of construction sites, the state has introduced guidelines for vigorously advocating green prefabricated buildings. From September 2016, the three major urban agglomerations of Beijing-Tianjin-Hebei, the Yangtze River Delta, ...

AI Technical Summary

Problems solved by technology

However, the first type of floor slab construction process has the lowest construction efficiency among the three. Compared with the latter two, it is unnecessary to build formwork, and the thickness of the reinforced concrete floor slab is relatively large, and the connection performance with the steel beam is also poor; the second type The construction process of this kind of floor slab needs to weld the profiled steel plate on site, there is a certain fire risk, and the profiled steel plate often adopts spot welding welding process, the connection performance is poor, and the connection between the profiled steel plate and the steel beam is only through the full penetration bolt It is connected by nails, and its anti-slip performance is weak. According to past engineering experience, if there is an earthquake and other disasters, the damage of the connection will bring great risks; the construction process of the second type of floor is similar to that of the second type. The only improvement is that the steel truss mesh and galvanized steel sheets can be prefabricated in the factory, which increases the construction efficiency and the assembly rate. Poor connection and other problems, and the connection ability between galvanized steel plate and steel beam is poor

In addition, the common disadvantages of the above three common floor slab construction procedures are as follows: 1. The construction risk of the floor slab is high, the concrete pouring is easy to cause personal injury, and the welding on site is easy to cause fire, etc.; 2. The construction efficiency is low, and the floor slab pouring itself The construction efficiency is not easy to control, and the floor construction needs to be constructed layer by layer, resulting in too long a construction period; 3. The quality of the construction process is low. When carrying out non-fabricated floor construction, the connection ability between the floor and the steel beam is poor, and the welding accuracy of the studs is poor. 4. The environmental pollution is serious, and it is difficult to control pollution and garbage when pouring concrete on site, and the transportation of construction equipment for wet work causes damage to the urban environment and road surfaces; 5. The cost is high, and a lot of human resources and materials are consumed in wet work cost

Images