Novel energy dissipation bolt joints for low-rise fabricated wallboard structure

Abstract

The invention discloses novel energy dissipation bolt joints for a low-rise fabricated wallboard structure. The novel energy dissipation bolt joints for the low-rise fabricated wallboard structure comprise prefabricated wallboards, prefabricated floor slabs and prefabricated corner columns, and the prefabricated wallboards, the prefabricated floor slabs and the prefabricated corner columns are connected by the novel energy dissipation bolt joint for the low-rise fabricated wallboard structure. Grooves are formed at the edges of connection parts among the prefabricated wallboards, the prefabricated floor slabs and the prefabricated corner columns, and bolt holes are formed in the parts of the prefabricated wallboards, the prefabricated floor slabs and the prefabricated corner columns in thegrooves in a reserved mode. Arc-shaped connecting steel plates are arranged outside the grooves. Bolt holes are formed in the arc-shaped connecting steel plates. Adjacent elements are connected by means of bolt connection through the arc-shaped connecting steel plates and high-strength bolts. An energy dissipation joint with good ductility is provided, the arc-shaped connecting steel plates are selected as main energy dissipation parts, so that failure first occurs on the arc-shaped connecting steel plates, it is guaranteed that bolt connecting pieces and other parts are not damaged and surrounding concrete is not destroyed before the failure first occurs on the arc-shaped connecting steel plates, and the ductility, deformation performance and energy dissipation performance of the energydissipation bolt joints are guaranteed.

Description

technical field [0001] The invention relates to a wall panel connection node, in particular to a novel low-rise assembled wall panel structure energy dissipation bolt node, which belongs to the technical field of structural engineering. Background technique [0002] Several major earthquakes since 2008 have caused a large number of houses to be damaged, most of which are rural houses with poor earthquake resistance, causing great damage to the lives and properties of villagers, and the defects of rural houses have been fully exposed. At present, most rural houses in my country are in a state of extensive construction, mainly built by farmers themselves, and there are common problems such as lack of seismic design, uneven construction quality, poor seismic performance and weak thermal insulation function. Rural housing has gradually become a major issue affecting the safety of people's lives and the improvement of living environment in our country. In 2017, "intensively carr...

AI Technical Summary

Problems solved by technology

[0008] (2) The construction quality of the wet connection method is not easy to guarantee

[0009] (3) The cost of wet connection method is very high

Because there are many secondary pouring processes and the connection of nodes requires a large number of experienced workers to operate, and at the same time, the amount of steel used in the connection parts of the nodes is large and the connecting devices such as sleeves are expensive, so the construction cost is very high

During the construction of Building No. 14 in Rock Town, due to the lack of skilled workers, immature construction technology, and unreasonable construction organization design, the construction cost of Building No. 14 was significantly higher than that of other buildings that were cast on site.

[0010] (4) In the existing dry connection method, the operating space between the steel bar and the steel plate is small, the welding connection process and the joint form are relatively complicated, and the amount of steel used in the connection part is large, requiring a large number of skilled workers, so it is not very suitable for large-scale use

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