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A large-tonnage space multi-directional multi-point structure test loading reaction device and its manufacturing method

A reaction force device, large tonnage technology, applied in the testing of machine/structural components, measuring devices, testing of mechanical components, etc., to achieve the effect of reducing quantity, saving space and convenient installation

Active Publication Date: 2019-01-29
重庆大学建筑规划设计研究总院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of counterforce device and its manufacturing method for self-anchored suspension bridge scale model test, to solve the problems existing in the prior art

Method used

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  • A large-tonnage space multi-directional multi-point structure test loading reaction device and its manufacturing method
  • A large-tonnage space multi-directional multi-point structure test loading reaction device and its manufacturing method
  • A large-tonnage space multi-directional multi-point structure test loading reaction device and its manufacturing method

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Experimental program
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Embodiment 1

[0049] The main cable anchoring methods of the self-anchored suspension bridge are divided into two types: 1) the main cable uses a continuous steel wire rope to go around the beam end, and makes the two main cables continuous into a closed loop; 2) the main cable is dispersed through the loose cable saddle, and the anchorage Anchored to bridge deck or stiffened girder.

[0050] This embodiment discloses a large-tonnage space multi-directional multi-point structure test loading reaction device proposed for the scaled-scale model test of the second anchoring method, including two triangular rigid frames 1 fixed on the laboratory foundation 5, And 4 jack connection nodes 2 and 3 horizontal links 3.

[0051] see figure 1 , the two triangular rigid frames 1 are arranged symmetrically. see figure 2 , each triangular rigid frame 1 includes two triangular plates 101 and a base plate 102 arranged in parallel.

[0052] see image 3 , the triangular board 101 includes an upper lim...

Embodiment 2

[0062] This embodiment discloses a method for manufacturing a large tonnage space multi-directional multi-point structure test loading reaction device described in embodiment 1, including the following steps:

[0063] 1) Design each part of the reaction force device. Wherein, after determining the positions of the triangular rigid frame 1 and the model, the spatial position and direction of the node riser 207 are determined according to the actual position of the model loading point and the direction of the resultant force line. The size of the node riser 207 is determined according to the specification of the jack 4 . The size of the node horizontal plate is determined according to the positional relationship between the triangular rigid frame 1 and the node vertical plate 207, and the distance between the horizontal plates. It is worth noting that see Figure 14 , due to the error between the position and direction of the loading point of the model after pouring and the de...

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Abstract

The invention provides a large-tonnage spatial multi-direction multi-point structure testing counterforce loading device and a manufacturing method thereof. The device comprises two triangular rigid frames which are fixed on a laboratory foundation, a plurality of jack connecting nodes and a plurality of transverse connections. The two triangular rigid frames are symmetrically arranged. The two triangular rigid frames are welded for forming an integral member through the plurality of transverse connections. One side of the jack connecting node is welded with the triangular rigid frame, and the other side is connected with the base of the jack. A top cushion of the jack abuts against a counterforce wall. In loading, the jack connecting nodes bear a loading force and transfer force to the triangular rigid frames. The manufacturing method of the device comprises steps of designing, welding, hoisting, etc. The large-tonnage spatial multi-direction multi-point structure testing counterforce loading device has advantages of realizing high convenience in mounting, saving space, accurately simulating an actual condition of a pulling force of a self-anchored suspension bridge main cable to an anchoring end, and effectively settling a problem of loading in a complicated spatial direction.

Description

technical field [0001] The invention relates to the field of test equipment, in particular to a test reaction force device used for spatially distributed loading directions. Background technique [0002] The self-anchored suspension bridge does not require huge anchors, but the main cable is anchored to both ends of the bridge deck or stiffening beam, and the bridge deck or stiffening beam bears the horizontal force and uplift force of the main cable. Therefore, the stress situation at the anchorage end of the main cable is more complicated. To understand its force characteristics and force transmission mechanism, it cannot be completely based on the results obtained from numerical simulations, and large-scale model tests are also required. How to simulate the force of the main cable on the anchorage end in the test has become the primary problem to be solved. [0003] In the anchor end test of the self-anchored suspension bridge, if the tension of the main cable is used t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01N3/02
CPCG01M13/00G01N3/02
Inventor 涂熙李浩狄谨徐梁晋
Owner 重庆大学建筑规划设计研究总院有限公司