Load positioning device for structural test

A technology for positioning devices and structural tests, applied to measuring devices, instruments, scientific instruments, etc., can solve problems such as the inability to accurately grasp the adjustment displacement, the inability to meet the requirements of large eccentric loading, and the inability to use horizontal loading tests to achieve adjustment steps Simple and convenient, reducing load positioning time and improving load positioning accuracy

Inactive Publication Date: 2012-12-05
SHANGHAI JIAO TONG UNIV
View PDF5 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the device can adjust the load position, it cannot accurately grasp the adjusted displacement, and its scope of application is limited to a single working condition of vertical centered loading, and cannot be used in horizontal load

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Load positioning device for structural test
  • Load positioning device for structural test
  • Load positioning device for structural test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The technical solutions of the present invention will be further explained below in conjunction with the accompanying drawings and embodiments, but the following contents are not intended to limit the protection scope of the present invention.

[0036] like figure 1 , 2 As shown in the figure, a test device that can quickly and accurately locate the pressure load in the structural test described in this embodiment mainly includes a positioning block 1, a bottom plate 2, a lateral stop 3, a longitudinal stop 4, an anti-overturning screw 5, a lateral stop The adjusting screw 6, the longitudinal adjusting screw 7 and the locking nut 8; the bottom plate 2 is connected to the test piece by bolts through four corner round holes; the surface of the bottom plate 2 is provided with a transverse block 3 and a longitudinal block 4, The block 3 and the longitudinal block 4 form an area; the positioning block 1 is placed in the area surrounded by the transverse block 3 and the long...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a load positioning device for a structural test. The device consists of a positioning block, a bottom plate, retaining blocks, an anti-overturn screw, adjusting screws and locknuts. The device is connected and fixed with a steel member or a steel embedded piece of a concrete member through the bottom plate; the positioning block is connected with a jack, is arranged in an area enclosed by the retaining blocks of the surface of the bottom plate, and moves longitudinally and transversely by screwing the adjusting screws; the anti-overturn screw passes through slots on the transverse retaining blocks, and then is anchored into a threaded hole which is formed on the side surfaces of the positioning block so as to prevent the positioning block from being separated from the bottom plate, so that the positioning device is applicable to vertical loading working conditions, and can also be applied to horizontal loading working conditions; scale marks are marked on the upper surface of the bottom plate, and are used for improving the adjusting speed and the adjusting accuracy; and the quantity of the longitudinal adjusting screws is increased and decreased according to the displacement adjustment range. The whole device has a clear principle, can be simply manufactured, is convenient to use, is high in load positioning accuracy, and can be applied to civil engineering teaching and scientific research tests.

Description

technical field [0001] The invention relates to a teaching and scientific research test device for civil engineering, in particular to a structure test load positioning device. Background technique [0002] In the field of structural testing in civil engineering, specimen compression is a common loading condition. The most common one is the axial compression loading method, and there may also be eccentric compression loading requirements depending on the purpose of the test. Load positioning accuracy is often an important factor affecting the accuracy of test results. Taking the compression loading of the axis as an example, the center of the jack base (such as ball hinge, knife edge hinge, etc.) is generally coincident with the centroid of the loading end section of the specimen through the position design of the connecting parts (such as bolts) in advance, so as to realize the one-time theory. Right. However, due to the machining error in the size of the specimen, the a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N3/02
Inventor 程斌钱沁黄仁锋
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products