|Table of Contents|

Flexural Bearing Capacity Calculation of Corroded Reinforced Concrete Beams(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2006年03期
Page:
61-
Research Field:
Publishing date:
2006-09-20

Info

Title:
Flexural Bearing Capacity Calculation of Corroded Reinforced Concrete Beams
Author(s):
WANG Da-hong1;  FAN Meng2
1. Logistics Service Group, Xi'an International Studies University, Xi'an 710061, Shaanxi, China; 2. Department of Project, Shenzhen Pengcheng Construction Group Ltd, Shenzhen 518040, Guangdong, China
Keywords:
corroded reinforced concrete beam;  corroded degree;  flexural bearing capacity;  deterioration mechanism;  non-bond
PACS:
TU378.2
DOI:
-
Abstract:
The present researches on corroded reinforced concrete members mainly focused on the corroded degree of steel bars, and other influences were systematically considered. These resulted in the differences among the existing parameters of calculation model. Therefore, the calculation methods of flexural bearing capacity strength of corroded reinforced concrete beams were comparatively analyzed. Based on the study results on the non-bond reinforced concrete beams, factors that influence the stress of steel bar in heavily corroded reinforced concrete members were investigated in detail. The results show that reinforcement index can reflect the influences of both concrete strength and reinforcement ratio on the steel stress. The degrading mechanism of bearing capacity for ordinary corroded reinforced concrete beams was analyzed, and a calculation formula of flexural capacity was proposed, which considers both corrosion degree and reinforcement index. The method was used to analyze large numbers of tested members, and there was excellent agreement between calculation results and experiment results. The results were useful to perfect the calculation method of the flexural bearing capacity of corroded reinforced concrete beams.

References:

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Last Update: 2006-09-20