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Torsional property of prestressed concrete composite beam with corrugated steel webs(PDF)

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

Issue:
2009年03期
Page:
58-63
Research Field:
Publishing date:
2009-06-20

Info

Title:
Torsional property of prestressed concrete composite beam with corrugated steel webs
Author(s):
DI Jin1; ZHOU Xu-hong1; YOU Jin-lan2; KONG Xiang-fu3
1.School of Highway,Chang’an University,Xi’an 710064,Shaanxi,China;2.Highway Bureau of Fuzhou,Fuzhou 350002,Fujian,China;3.Shandong Provincial Communications Planning and Design Institute,Jinan 250031,Shandong,China
Keywords:
bridge engineering;  corrugated steel web;  box girder;  torsional property;  distortion;  warping stress
PACS:
U443.35
DOI:
-
Abstract:
The second theory of A.A.Umanskii was adopted to study torsional property of composite beam with corrugated steel webs. The torsional and distortional property of box girder under eccentric　load was analyzed. The result of the theoretical method was verified by the finite element method. The results show that the warping stress caused by restrained torsion is 5.9% of that caused by bending. The shear of the corrugated steel webs caused by restrained torsion is 14.8% of that caused by bending. The warping stress caused by distortion is 29% of that caused by bending. Based on the simplesupported beam referred in this paper, the warping stress caused by distortion is 5 times of that caused by restrained torsion. The effect caused by the eccentric load which possesses larger share of the calculation should not be ignored. 3 tabs, 13 figs, 9 refs.

References:

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Memo

Memo:
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Last Update: 2009-06-20