Frame structure beam plate column node oblique loading device

Abstract

The invention relates to a frame structure beam plate column node oblique loading device. The frame structure beam plate column node oblique loading device comprises a concrete reaction wall, a test bench bed, a door frame, a horizontal loading mechanism, an axial loading mechanism, a lateral limiting mechanism, a beam end force measuring mechanism and a horizontal displacement measuring mechanism, wherein the horizontal loading mechanism comprises an MTS actuator, a loading head, a connecting rod and a connecting plate; the axial loading mechanism comprises a pressing head, a jack, an axial force rod, a column boot, a pad plate, a supporting hinged shaft and a column supporting pedestal; the lateral limiting mechanism comprises a lateral adjustment assembly and groove steel; the beam end force measuring mechanism comprises a pressing plate, a pull rod, a spoke type pressure sensor, a connecting hinged shaft, a fastening screw rod, an upper connecting head, a lower connecting head and a fixed pedestal; the horizontal displacement measuring mechanism comprises a vertical bracket and a displacement meter. The frame structure beam plate column node oblique loading device is easy to mount and accurate in test data, can reflect the actual stress condition of the beam plate column node well, and can be applied to seismic resistance tests of the frame structure beam plate column node with various section forms and different angles under the oblique low-cycle reciprocating load action.

Description

technical field [0001] The invention relates to an oblique loading test of a beam-slab-column joint of a frame structure, in particular to an oblique loading device for a beam-slab-column joint of a frame structure. Background technique [0002] The frame structure has the advantages of flexible space separation, light weight, and short construction period. It is widely used in multi-storey buildings. However, the frame structure has the disadvantages of significant stress concentration at nodes and low lateral stiffness. At present, for frame structures under earthquake loads Bearing capacity and deformation performance, the commonly used test method is the low-period reciprocating load test. Due to the radiation of the seismic wave transmission, the building may be in a state of oblique stress under the seismic load. Therefore, the frame structure nodes under the oblique seismic load It is necessary to study the seismic performance under the action. Contents of the inven...

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Problems solved by technology

[0002] The frame structure has the advantages of flexible space separation, light weight, and short construction period. It is widely used in multi-storey buildings. However, the frame structure has the disadvantages of significant stress concentration at nodes and low lateral stiffness. At present, for frame structures under earthquake loads Bearing capacity and deformation performance, the commonly used test method is the low-period reciprocating load test. Due to the radiation of the seismic wave transmission, the building may be in a state of oblique stress under the seismic load. Therefore, the frame structure nodes under the oblique seismic load It is necessary to study the seismic performance under the action of

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