Ductility and Distribution of Strains on Column Reinforcement Retrofit with Wire Mesh

IF 1.1 Q3 ENGINEERING, CIVIL Civil and Environmental Engineering Pub Date : 2023-05-12 DOI:10.2478/cee-2023-0013
A. Amiruddin, H. Parung, R. Irmawaty, M. Tumpu, Mansyur, P. R. Rangan
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Abstract

Abstract A lot of damage to building structures due to earthquakes is damage to column components that serve as vertical elements to pass the load to the foundation. Ductility is one of the parameters that must be owned by the column and as part of the column, longitudinal reinforcement is part of the column element that is quite vital and one of the parameters that can be studied is the distribution of strains that occur in longitudinal reinforcement when burdened with cyclic loads. In this study, a study of the ductility and distribution of strain values occurred in the reinforcement of control columns and retrofit columns with wire mesh size M6. From the test results in can be that on the column that is retrofit with wire mesh and SCC experienced an increase in the value of ductility. While the strain value on the reinforcement of the control column and retrofit column tends to enlarge when it is in the plastic hinge area of the column. In the control column the strain value that occurs in the plastic hinge area is greater than the strain value in the retrofit column, so that in the control column the plastic hinge mechanism has begun to form, while in the retrofit column the plastic hinge mechanism has not been formed due to higher stiffness.
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钢丝网加固柱的延性及应变分布
摘要地震对建筑结构的破坏主要是柱构件的破坏,而柱构件是将荷载传递给基础的竖向构件。延性是柱必须具有的参数之一,而纵向钢筋作为柱的一部分,是柱单元中非常重要的部分,受循环荷载作用时纵向钢筋中的应变分布是可以研究的参数之一。在本研究中,研究了控制柱和改进柱的钢筋网尺寸为M6的延性和应变值的分布。从试验结果可以看出,在加装金属丝网和SCC后,柱的延性值有所提高。而控制柱和加固柱的应变值在柱塑性铰区有增大的趋势。在控制柱中,塑性铰区域发生的应变值大于改造柱中的应变值,因此在控制柱中塑性铰机构已经开始形成,而在改造柱中,由于刚度较高,塑性铰机构尚未形成。
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CiteScore
2.00
自引率
58.30%
发文量
69
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