Numerical investigation of the effect of beam slab openings in RC structures on seismic behavior

IF 1.4 4区工程技术

Revista de la Construccion Pub Date : 2021-01-01 DOI:10.7764/rdlc.20.3.512

Ahmet Özbayrak, F. Altun

引用次数: 0

Abstract

Earthquake negatively affects the behavior of reinforced concrete frame systems that have slab discontinuities. As a result of differences in diaphragm behavior according to slab void ratio and position, lateral loads cannot be distributed to vertical bearing elements in proportion to their rigidity. In this study, the topic of differences in the behavior of reinforced concrete frame system under lateral load if void ratio and position of the slab change have been examined numerically. For this purpose, five single-story three-dimensional carrier frame models with different void ratios and positions were created in the ANSYS program analyzing according to the finite element method. As a result of the study, an increase in slab void ratio of reinforced concrete frame type carrier systems resulted in displacement in more significant amounts. Along with 25% being a safe void ratio in terms of rigid diaphragm behavior when the void ratio is 50%, whether the void is symmetrical or not becomes extremely important in terms of behavior.

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梁板开孔对钢筋混凝土结构抗震性能影响的数值研究

地震对具有板不连续结构的钢筋混凝土框架体系的性能有负面影响。由于隔板的性能随板空隙率和位置的不同而不同，横向荷载不能按其刚度的比例分配给垂直承载单元。在本研究中，钢筋混凝土框架体系的行为差异的主题，如果板的空洞率和位置的变化进行了数值研究。为此，在ANSYS程序中根据有限元法进行分析，建立了5个具有不同空隙比和位置的单层三维载体框架模型。研究结果表明，钢筋混凝土框架型承载系统的板空隙率增加会导致更大的位移。当空率为50%时，25%的空率对于刚性隔膜的性能来说是安全的，因此，就性能而言，空率是否对称变得极其重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista de la Construccion 工程技术-工程：土木

CiteScore

2.30

自引率

21.40%

发文量

期刊介绍： The Journal of Construction is aimed at professionals, constructors, academics, researchers, companies, architects, engineers, and anyone who wishes to expand and update their knowledge about construction. We therefore invite all researchers, academics, and professionals to send their contributions for assessment and possible publication in this journal. The publications are free of publication charges. OBJECTIVES The objectives of the Journal of Construction are: 1. To disseminate new knowledge in all areas related to construction (Building, Civil Works, Materials, Business, Education, etc.). 2. To provide professionals in the area with material for discussion to refresh and update their knowledge. 3. To disseminate new applied technologies in construction nationally and internationally. 4. To provide national and foreign academics with an internationally endorsed medium in which to share their knowledge and debate the topics raised.