Residual Bearing Capacity of Multi-Ribbed Composite Wall Cell After High Temperature

doi:10.11908/j.issn.0253-374x.2018.09.004

Home > Archive>Volume 46, Issue 09, 2018 >1182-1188. DOI:10.11908/j.issn.0253-374x.2018.09.004

Residual Bearing Capacity of Multi-Ribbed Composite Wall Cell After High Temperature
DOI:
                        10.11908/j.issn.0253-374x.2018.09.004
                    
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                        SUN JingSUN Jing
School of Civil Engineering, Beijing Jiaotong University，Beijing 100044, China
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ZHAO XiuliZHAO Xiuli
School of Civil Engineering, Beijing Jiaotong University，Beijing 100044, China
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ZHANG JingZHANG Jing
Guangzhou GCI Science Technology Co. Ltd.，Guangzhou 510310, China
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Clc Number:TU375
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Abstract:

The multi-ribbed composite wall consists of the frame made of reinforced concrete rib and lightweight aerated concrete block, which are the two principal bearing members. Frame cell is the essential weighted element. Therefore, numerical analysis on frame cell was conducted according to the thermodynamic performance of each material in the multiribbed composite wall. Finite element analysis was carried out based on temperature field contours in different fire loads with ISO834 international heating curves. It was found that the rate of residual bearing capacity increased and then decreased as the heating time increased and mechanical performance are different between one side and double side by the fire. The heated side achieved ultimate load earlier under vertical displacement load. Because of the damage of the fire, the multiribbed composite wall cell is more likely to have outplane displacement.

Key words:multi-ribbed composite wall; frame cell;temperature field; residual bearing capacity

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SUN Jing, ZHAO Xiuli, ZHANG Jing. Residual Bearing Capacity of Multi-Ribbed Composite Wall Cell After High Temperature[J].同济大学学报(自然科学版),2018,46(09):1182~1188

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Received:March 06,2017
Revised:July 04,2018
Adopted:June 28,2018
Online: October 17,2018
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