Beam-end loading test device of beam-column joint and test method of test device

A beam-column joint, testing device technology, used in measuring devices, testing material strength using repetitive force/pulse force, instruments, etc.

Inactive Publication Date: 2017-06-23
WUHAN UNIV OF SCI & TECH
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Problems solved by technology

[0004] The present invention aims at the defects existing in the current research on the hysteretic performance of beam-column joints using a single beam-column joint column-end loading method in pseudo-static tests, and provides a beam-end loading device, which can study beam-column joints while simulating earthquake action. A beam end loading device and test method for beam-column joints in the case of plastic hinges at the end and shear resistance in the core area

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  • Beam-end loading test device of beam-column joint and test method of test device
  • Beam-end loading test device of beam-column joint and test method of test device
  • Beam-end loading test device of beam-column joint and test method of test device

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[0031] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0032] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, a beam-column joint beam end loading test device includes an external frame fixing device, a specimen loading device and a data acquisition system. The external frame fixing device includes an I-shaped steel beam cap 1, an I-shaped beam 2, an I-shaped beam The first I-shaped column 3 and the I-shaped second column 4, the I-shaped steel beam cap 1 is arranged in parallel with the I-shaped beam 2, the I-shaped first column 3 and the I-shaped second column The lower end of 4 is vertically fixedly connected to both ends of the I-shaped steel beam cap 1, and the upper ends of the first I-shaped column 3 and the second I-shaped column 4 are vertical...

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Abstract

The invention belongs to the technical field of reinforced concrete building testing, and particularly relates to a beam-end loading test device of a beam-column joint. The beam-end loading test device comprises an external frame fixing device, a specimen loading device and a data collection system, wherein a beam-column joint specimen is arranged on the specimen loading device; and a hydraulic oil source is controlled through a controller to adjust the vertical shift motion of a vertical actuator, so that the beam-column joint specimen is arranged in an unloaded condition. The method comprises the steps of designing parameters through a computer, controlling a jack and the vertical actuator to apply loads to the beam-column joint specimen through the controller; carrying out loading test according to the requirements until the specimen is destroyed; and collecting vertical force P(t) on the beam-column joint specimen and generated vertical displacement S(t) in the test process by a multi-channel strain collection instrument, drawing a hysteretic curve of the beam-column joint specimen and analyzing the hysteretic performance. By adopting a beam-end loading mode, the shear conditions of a beam-end plastic hinge and a core area can be researched while the earthquake action is simulated, and the beam-end loading test device is of great significance.

Description

technical field [0001] The invention belongs to the technical field of reinforced concrete building testing, and in particular relates to a beam-column joint beam end loading testing device and a testing method thereof. Background technique [0002] In the field of civil engineering, the test of hysteresis performance is very important in the study of the mechanical properties of beam-column joints. In a building structure containing beam-column joints, the mechanical performance of the joints is often relatively weak, and the hysteretic performance can reflect the seismic performance of the entire structure. The measurement of the hysteretic performance of the beam-column joints can reflect the deformation capacity, Ductility and energy dissipation capacity. [0003] At present, the research on the hysteretic performance of beam-column joints mainly adopts pseudo-static tests, which can simulate the seismic performance of joint specimens under earthquakes. However, most of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/36
CPCG01N3/36G01N2203/0005G01N2203/0048
Inventor 杨曌刘勇李佳佳吕伟包亮王宜温晓晖
Owner WUHAN UNIV OF SCI & TECH
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