Study on static load test of modified and extended rigid frame bridge

In order to evaluate the mechanical condition and working performance of a rigid frame bridge after reconstruction and extension, the mechanical performance of the bridge was analyzed by static load test. Static load test is the test of stress at each section of main beam under the action of partial...

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Bibliographic Details
Main Authors: Yu-feng, NING, Qing-cheng, YANG, Wei-wei, SUN, Shun-chao, CHEN
Format: Conference Proceeding
Language:English
Subjects:
Box girders
Bridge loads
Bridges
Load tests
Mechanical properties
Static loads
Strain
Stress
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Summary:In order to evaluate the mechanical condition and working performance of a rigid frame bridge after reconstruction and extension, the mechanical performance of the bridge was analyzed by static load test. Static load test is the test of stress at each section of main beam under the action of partial load and medium load. The results show that, under the action of each load, the check coefficient of strain and deflection at each measuring point of the box girder does not exceed the standard limit value 1, the relative residual strain or deformation at each measuring point does not exceed the standard limit value 20%, the stress condition of the tested section of the box girder is normal, and the structure is under the normal stress state under the action of the test load.
ISSN:2267-1242
2555-0403
2267-1242
DOI:10.1051/e3sconf/202123303018