A low seismic loss beam-column connection based on corrugated bfrp connecting plate
A beam-column joint and connecting plate technology, applied in earthquake resistance, building types, buildings, etc., can solve problems such as difficulty in repairing concrete, and achieve the effects of easy forming, improved shape ability, and effective force transmission.
Active Publication Date: 2021-10-15
SOUTHWEST JIAOTONG UNIV +1
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Problems solved by technology
[0003] Under earthquake action, the earthquake damage of the frame structure is mainly concentrated at the beam-column joints. After the beam ends of the traditional reinforced concrete frame structure yield or even buckle, it is difficult to restore the structure and repair the concrete.
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[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific implementation methods.
[0018] A low seismic loss beam-column node based on the corrugated BFRP connecting plate of the present invention such as figure 1 As shown, specifically: one end of the corrugated BFRP connecting plate 102 and the BFRP perforated plate 103 is pasted on the outer side of the vertical BFRP pipe 101 through epoxy resin. The BFRP perforated plate 103 is mainly used to provide shear resistance, and the corrugated BFRP connecting plate 102 is mainly used to provide bending resistance.
[0019] like figure 2 As shown, the other end of the corrugated BFRP connecting plate 102 is provided with a platform section, and a through hole is reserved on the platform section, and the through hole is connected with the beam longitudinal reinforcement 104 . Under earthquake action, the corrugated BFRP connecting plate 102 has good elastic...
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The invention discloses a beam-column node with low seismic loss based on a corrugated BFRP connecting plate, specifically: the corrugated BFRP connecting plate and one end of the BFRP perforated plate are pasted on the outer side of the vertical BFRP pipe wall through epoxy resin; the corrugated BFRP connecting plate A platform section is set at the other end of the platform section, and a through hole is reserved on the platform section, and the through hole is connected with the hook at the end of the longitudinal steel bar of the beam; the BFRP perforated plate, the corrugated BFRP connecting plate and the longitudinal steel bar of the beam are poured into a whole through concrete to form a Beams; vertical BFRP pipes are filled with concrete to form columns. The invention can effectively increase the elastic deformation capacity of beam ends, and can effectively reduce the earthquake damage of beam-column joints under the action of small and medium earthquakes; under the action of strong earthquakes, important materials such as BFRP boards and steel bars can all maintain elasticity, and only part of the concrete In the event of damage, after the earthquake, it is only necessary to remove the damaged concrete at the end of the beam and recast it into shape.
Description
technical field [0001] The invention belongs to the field of civil engineering, in particular to a beam-column joint with low seismic loss based on a corrugated BFRP connecting plate. Background technique [0002] my country is an earthquake-prone area. Under the action of earthquakes, building structures may suffer huge damage and lose their use functions. Research and design of low-earthquake-damage and easy-to-repair building structures has important positive significance for improving urban earthquake resistance and disaster reduction capabilities. [0003] Under earthquake action, the earthquake damage of the frame structure is mainly concentrated at the beam-column joints. After the steel bars at the beam ends of the traditional reinforced concrete frame structure yield or even buckle, it is difficult to restore the structure and repair the concrete. Contents of the invention [0004] In order to effectively reduce the damage of the frame structure under medium and s...
Claims
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IPC IPC(8): E04B1/20E04B1/21E04B1/98E04H9/02
CPCE04B1/20E04B1/21E04B1/98E04H9/021E04H9/025
Inventor 占玉林邓开来孙约瀚许俊侯之瑶杨文冲王先刚杨柳刘海波
Owner SOUTHWEST JIAOTONG UNIV