Analytical Study on Lateral Strength of Multi-Span RC Frame with Masonry Infill
Analytical Study on Lateral Strength of Multi-Span RC Frame with Masonry Infill
复制标题
砌体填充多跨RC框架侧向强度分析研究
DOI：
10.2478/cee-2022-0042
复制
发表时间：
2022
影响因子：
1.2
通讯作者：
Zaidir
中科院分区：
文献类型：
--
作者：
F. Nugroho;Maidiawati;J. Tanjung;Zaidir
摘要本文提出了一种简单而精确的计算模型，用于确定多跨砌体框架的抗侧力。该模型是针对现有分析模型仅适用于单跨钢筋混凝土框架的局限性而建立的。同时，该建筑结构也是多跨框架结构，砌体填充对门式结构的影响很大。在既有建筑中，钢筋混凝土框架的抗侧承载力计算需要采用这种分析方法。在单跨框架抗侧承载力分析方法的基础上，建立了沿着等跨间距砌体填充多跨框架的模型，并进行了分析。此外，在框架结构中，使用与砌体板具有相同厚度和材料的等效斜撑代替砌体填充物。外部柱在柱的顶部或底部上具有对角压缩力。另一方面，在内部柱中，斜向压力作用在柱的顶部和底部。根据瓣架填充物接触长度确定填充物的侧向强度。此外，为了获得结构的抗侧承载力，还进行了一个多跨填充砌体框架结构在低周反复荷载作用下的试验研究。应用的分析模型已经显示出有前途的结果，即使在与实验工作的结果进行比较。
Abstract A simple and accurate analytical model for defining the lateral strength of the multi-span RC frame with masonry infill has been developed in this study. This model is developed due to the limitation of the current analytical model which only can be applied to the single-span RC frame. Meanwhile, the structure in the building also is in a multi-span frame and masonry infill greatly impacts the portal structure. In the existing building, this analytical method is needed to calculate the lateral strength of the RC frame. Besides, the analytical method was developed based on the lateral strength analysis method of a single-span RC frame in which the modeling of a multi-span RC frame with masonry infill along with uniform span spacing was applied. Furthermore, an equivalent diagonal strut with the same thickness and material as the masonry panels was used instead of masonry infill in the frame structure. The external column has diagonal compressive forces on the top or bottom of the column. On the other hand, diagonal compressive forces work at the top and the bottom of the column in the internal column. The lateral strength of the infill was determined based on the frame infill contact length. Furthermore, in order to obtain the lateral strength of the structure, the experimental study of a multi-span RC frame with masonry infill under cyclic load was also tested. Applying the analytical model has shown promising results even after being compared with the results of the experimental work.