Loading arrangement and adjustment method for bridge static load test

A static load test and adjustment method technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of cumbersome calculations, inability to change the loading scheme, and long time-consuming, etc., to simplify the loading process and save calculations time and work efficiency

Active Publication Date: 2018-11-06
SOUTHWEST JIAOTONG UNIV
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The calculation of these two methods is cumbersome and takes a long time, and the loading scheme cannot be changed in time according to the site conditions

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
  • Loading arrangement and adjustment method for bridge static load test
  • Loading arrangement and adjustment method for bridge static load test
  • Loading arrangement and adjustment method for bridge static load test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0029] like figure 1 As shown, a bridge static load test load arrangement and adjustment method includes the following steps:

[0030] S1. Establish the finite element model of the bridge structure: use professional bridge analysis software to establish the finite element model of the bridge structure to be tested, calculate and analyze the internal force and displacement results under the live load of vehicles and crowds, and according to the most unfavorable internal force, displacement results and the ...

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 loading arrangement and adjustment method for a bridge static load test. In combination with a loading shaft weight and vertical marks of influence lines, and through a formula Mk=sigma Fi*Yi, a displacement or internal force calculation value of a test section under the load action of a test car is calculated out; three basic parameters including the number of basic testcars, the coordinates of loading wheel positions and the loading shaft weight Fi are adjusted, so that a ratio of a loading internal force result to a bridge design load internal force result can berapidly obtained, and the ratio is 0.95-1.05; multiple columns of influence line data can be copied to carry out multi-working-condition simultaneous loading calculation; and finally an influence linegraph and a loading graph are drawn. According to the method, an influence line quantity value at any loading wheel position can be quickly obtained; the shaft weight and the coordinates of the loading wheel positions can be quickly changed according to test conditions; and the multi-working-condition loading calculation is carried out simultaneously, so that the loading process of the static load test is greatly simplified, the calculation time is shortened, and the working efficiency of the loading calculation and adjustment of the load test of bridge detection engineers is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of bridge static load tests, in particular to a loading arrangement and adjustment method for bridge static load tests. Background technique [0002] The bridge static load test can evaluate and test the bearing capacity of the bridge structure, and it is more and more widely used in practice. The load distribution method is usually through the influence line load trial calculation until the load efficiency satisfies: 0.95≤η≤1.05, η =S stat / (S×δ). where S stat is the calculated value of the displacement or internal force of the detection part under the test load; S is the calculated value of the displacement or internal force of the detection part under the design standard live load; δ is the dynamic coefficient used in the design. [0003] There are currently two calculation methods: 1) Apply the estimated number of vehicles, axle loads, and vehicle spacing parameters as a single load on the finite elem...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 施洲杨仕力张晓珂蒲黔辉张育智姜兴洪孙智韬
Owner SOUTHWEST JIAOTONG 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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap