A fabricated slab-column system using prestressed steel rods and inner core curved buckling-resistant bracing

Abstract

The invention discloses an assembly type slab column system adopting prestressed steel bars and inner core bending type buckling-restrained braces, and belongs to the field of building structure technology and structure seismic shock absorption. The system mainly comprises precast columns, precast floor slabs, precast wall boards, the prestressed steel bars for concrete, prestressed anchors, the inner core bending type buckling-restrained braces, heat-preservation and sound-insulation wall boards, external wall boards, gaps between the inner core bending type buckling-restrained braces and theheat-preservation and sound-insulation wall boards, column-wall connecting pieces and the like. The prestressed anchors arranged on the column corners, the prestressed steel bars for concrete are arranged in prestressed ducts in the precast floor slabs, and slab column joints are connected with the prestressed anchors through the prestressed steel bars for concrete. The inner core bending type buckling-restrained braces are arranged in the precast wall boards, the anti-lateral rigidity and bearing capacity of the structure are improved, and meanwhile the system energy-dissipating capacity isenhanced. Accordingly, all dry type construction is achieved, wet method operation is omitted, construction is easy, the prefabricated rate is high, the slab column joint is stable and reliable, and the structural system anti-seismic property is good.

Description

technical field [0001] The invention relates to an assembled slab-column system using prestressed steel rods and inner core curved anti-buckling supports, using prestressed concrete steel rods in prefabricated floor slabs to apply prestress to the structure, and realize dry connection of slab-columns. Under earthquake action, the inner core curved buckling-resistant brace can effectively dissipate energy, and significantly improve the construction efficiency and seismic performance of traditional prestressed fabricated slab-column structures. The invention belongs to the field of new building structure technology and structure anti-seismic shock absorption. Background technique [0002] In recent years, with the advancement of construction industrialization and housing industrialization, prefabricated concrete structures have achieved rapid development and wide application in my country. The prestressed prefabricated slab-column structure can effectively reduce the floor he...

AI Technical Summary

Problems solved by technology

The traditional anti-buckling support can ensure that the support does not buckle under compression and tension, and has more stable mechanical properties compared with the traditional support. The rationally designed anti-buckling support can have high stiffness and good hysteretic energy dissipation capacity, but This kind of anti-buckling brace often has a high yield force, and it only provides stiffness without energy consumption under design earthquakes (small or moderate earthquakes), so it is necessary to propose a new type of energy-consuming anti-buckling brace

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