Experimental evaluation of the corrosion influence on the cyclic behaviour of RC columns
Experimental evaluation of the corrosion influence on the cyclic behaviour of RC columns
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DOI：
10.1016/j.engstruct.2014.06.043
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发表时间：
2014-10-01
影响因子：
5.5
通讯作者：
Riva, Paolo
中科院分区：
文献类型：
--
作者：
Meda, Alberto;Mostosi, Serena;Riva, Paolo
钢筋锈蚀是钢筋混凝土结构劣化的主要原因之一。钢筋腐蚀破坏不仅会导致结构承载力降低，还会改变结构的破坏机制，导致结构延性降低。为了研究这一问题，在循环荷载作用下对柱试件进行了足尺试验。在裸棒和预埋棒上进行了腐蚀过程校准的初步试验。循环试验测试的结果表明，钢筋腐蚀如何导致结构延性的降低，因此它可能成为一个关键方面，特别是对地震地区的建筑物。(C) 2014 Elsevier Ltd.版权所有。
Corrosion of reinforcement is one of the leading causes of the deterioration in reinforced concrete structures. RC structures damaged by reinforcement corrosion can exhibit not only reduction of the bearing capacity but also an alteration of the collapse mechanism with a reduction of the structural ductility. In order to study the problem, full scale experimental tests on column specimens have been performed under cyclic loads. Preliminary tests for the calibration of the corrosion process have been carried out both on bare and embedded bars. The results of the cyclic experimental tests show how the reinforcement corrosion can lead to a reduction of the structural ductility, such that it could become a critical aspect particularly for buildings in seismic regions. (C) 2014 Elsevier Ltd. All rights reserved.