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Test on damage assessment of hinged concrete T-beam bridge system(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年02期
Page:
65-69
Research Field:
Publishing date:
2009-02-20

Info

Title:
Test on damage assessment of hinged concrete T-beam bridge system
Author(s):
YAO Xiao-fei; XU Yue; FU Ying-chun
Key Laboratory of Bridge Detection and Reinforcement Technology Ministry of Communications,Chang’an University,Xi’an 710064,Shaanxi,China
Keywords:
bridge engineering;  Tbeam bridge;  damaged transverse connection;  damage evaluation;  model test
PACS:
U441.4
DOI:
-
Abstract:
The effect of damaged transverse connection on prefabricated concrete beam bridges was studied through model test and finite element analysis in this paper. On the basis of standard drawing of 16 m Tbeam bridge, one 4 m hinged prefabricated concrete model Tbeam bridge by using of welding steel plate was designed. The impacts on damages of different conditions for transverse load distribution were discussed. Firstly, the damage of transverse connections has a big influence on the adjacent girders, but it has little effect on the girders apart from them and almost has nothing to do with other ones. Secondly, when the damage rate is 55.55%, the phenomenon of single beam bearing has become a problem. Thirdly, when the hinges of the five girders are undamaged, loads are supported mainly by the three beams adjacent to the loading point. Accordingly under the condition of transverse connections damaged, the transverse load distribution influence line coordinate values of beams adjacent to the connections will change obviously, while the other beams with undamaged connections will remain unchanged. 5 tabs, 5 figs, 7 refs.

References:

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Memo

Memo:
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Last Update: 2009-02-20