Experimental boundary condition simulator for semi-structural vibrating table
A boundary condition and simulation device technology, applied in the fields of civil engineering and earthquake engineering, can solve the problem that the number of large-scale shaking tables cannot meet this requirement, and achieve the effects of flexible and controllable geometric size, simple, fast and effective conversion, and wide applicability.
Active Publication Date: 2015-07-01
TONGJI UNIV
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Problems solved by technology
[0003] As an important means of seismic research of bridge engineering, shaking table experiment technology has been paid more and more attention by bridge and structure workers in recent years. However, since bridges and most newly-built structures are multi-point support structures, if multiple Point excitation shaking table experiments, the scale and number of shaking table laboratories in most domestic shaking table laboratories cannot meet this requirement
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Embodiment 1
[0028] Such as figure 1 , 2 As shown, the boundary condition simulation device proposed by the present invention consists of an upper fixed plate 1 , a middle sliding plate 2 , a lower fixed plate 3 and a locking pin 4 . The upper fixing plate 1 and the lower fixing plate 3 have the same structure, and are respectively consolidated with the mid-span position of the structure in the experiment and the fixing devices outside the system (such as reaction wall, reaction frame, etc.). The fixed plates 3 have two parallel chutes respectively, and the chutes of the upper fixed plate and the lower fixed plate are in an orthogonal state; The steel plate is composed of 4 slide bars, which can engage with the 4 slide grooves of the upper fixed plate 1 and the lower fixed plate 3, and slide smoothly in two mutually orthogonal directions. The contact surface between the slide bar and the chute can use mirror stainless steel and PTFE plate as the contact material, and apply silicon grease...
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The invention relates to an experimental boundary condition simulator for a semi-structural vibrating table. The boundary condition simulator consists of an upper fixed plate, a middle sliding plate, a lower fixed plate and a dead bolt. The simulator can simulate common boundary conditions of various structural experiments, and the simulation of different boundary conditions can be simply and quickly switched. After the simulator is used, a structural engineer can complete experimental contents designed by a whole structure by installing and loading a semi-structure, therefore the using efficiency of the vibrating table can be greatly improved, and the advance rate of scientific research can be improved greatly.
Description
technical field [0001] The invention belongs to the technical fields of civil engineering and earthquake engineering, and in particular relates to a semi-structure shaking table experimental boundary condition device. Background technique [0002] After the "5.12" Wenchuan Earthquake, more and more attention has been paid to the seismic safety of highway infrastructure. As a key node in highway engineering, once a bridge is damaged, it will take a long time to repair, and the resulting loss of life, property and indirect economic losses will become increasingly huge. The Wenchuan Earthquake once again showed the serious consequences of earthquake damage in structural engineering, and also repeatedly demonstrated the importance of seismic research in structural engineering. [0003] As an important means of seismic research of bridge engineering, shaking table experiment technology has been paid more and more attention by bridge and structure workers in recent years. However...
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IPC IPC(8): G01M7/00
Inventor 杨浩林田圣泽庞于涛刘世佳李涵袁万城
Owner TONGJI UNIV