An investigation on the effect of number of stories on lateral behaviour of RC frame with masonry infill wall

IF 1.6 Q3 ENGINEERING, CIVIL

Australian Journal of Civil Engineering Pub Date : 2021-11-19 DOI:10.1080/14488353.2021.1981524

Mir NaghiMousavi, E. Ahani, B. Rafezy, Fathollah Osmanzadeh

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Abstract

ABSTRACT Masonry infills, due to considerable stiffness content, may play a crucial role in the lateral behaviour of the RC frames. Lateral behaviour of masonry infill frames is strongly influenced by material properties, masonry dimensions, aspect ratio, and story numbers. In this study, the effects of the number of stories on the interaction between masonry infill and RC frame are evaluated. To this purpose, a half-scaled single-bay, single-story RC frame was built with the most common material inside the country and tested under the cyclic loading. Thereafter, numerical modelling of the experimental specimen is performed. After validating the authenticity of numerical modelling by the consequence of experimental results, numerical models expanded in RC frames with different story numbers. Simplified micro modelling method employed for numerical modelling. The results indicate that increasing the number of story more than two stories will reduce the impact of the presence of masonry infill wall on the lateral behaviour of reinforced concrete frames.

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层数对砌体填充墙混凝土框架侧移性能影响的研究

摘要砌体填充物由于具有相当大的刚度，可能在钢筋混凝土框架的横向性能中起着至关重要的作用。砌体填充框架的横向性能受到材料特性、砌体尺寸、纵横比和层数的强烈影响。在本研究中，评估了层数对砌体填充和RC框架之间相互作用的影响。为此，用国内最常见的材料建造了一个半比例的单开间单层RC框架，并在循环荷载下进行了测试。然后，对实验样品进行数值模拟。在通过实验结果验证了数值模型的真实性后，将数值模型扩展到不同层数的RC框架中。用于数值建模的简化微观建模方法。结果表明，增加两层以上的层数将减少砌体填充墙对钢筋混凝土框架横向性能的影响。

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来源期刊

Australian Journal of Civil Engineering ENGINEERING, CIVIL-

CiteScore

3.90

自引率

7.70%

发文量