|Table of Contents|

Effects of re-force on steel-strengthened reinforced beam's capacity(PDF)

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

Issue:
2011年01期
Page:
46-50
Research Field:
Publishing date:
2011-02-28

Info

Title:
Effects of re-force on steel-strengthened reinforced beam's capacity
Author(s):
LIU Lai-jun1;  QIN Yu1;  ZHANG Yan2;  GAO Hong-zhou3
1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China;
2. Wucheng Branch of Dezhou City Highway Administration, Dezhou 253000, Shandong, China;
3. Shandong Luqiao Construction Limited Corporation, Jinan 250021, Shandong, China
Keywords:
bridge engineering;  reinforced concrete beam;  structure member strengthening with bonded steel plate;  re-force load;  bearing capacity
PACS:
U445.72
DOI:
-
Abstract:
There are some shortcomings existing in the bearing capacity formula of bonded steel reinforced concrete structure in the Specifications for Strengthening Design of Highway Bridges. The flexural capacity of the theoretical formula is derived and the reinforcement effect on the secondary load is analyzed by the application of theory of elasticity. The results show that: there are some differences in theoretical formula of ultimate bearing capacity in steel-strengthened reinforced beam between considering the effect of secondary load and not considering; under damage of balanced-reinforced beam, the balanced depth of compression zone have been differently affected by the secondary load compared, with the first force; the brittle failure of over-reinforced beam can be avoided in steel-strengthened reinforced beam by theoretical formula. 3 figs, 16 refs.

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Last Update: 2011-02-28