部分填充钢筋混凝土 (RC) 框架的侧向刚度

IF 3.9 2区工程技术 Q1 ENGINEERING, CIVIL

Structures Pub Date : 2024-10-29 DOI:10.1016/j.istruc.2024.107532

Birendra Nath Singha, Goutam Mondal

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引用次数: 0

摘要

当框架中的填充物达到柱子的全部高度时，称为全填充框架（FIF）。而当填充物达到结构框架的一定高度时，则称为部分填充框架（PIF）。部分填充通常用于建筑物的通风目的。从过去的地震中可以明显看出，在存在部分填充物的情况下，建筑物会发生破坏性倒塌，因此研究人员认为研究部分填充物框架在横向荷载下的行为非常重要。本研究提出了一种基于有限元分析的局部填充框架简化宏观建模方法。根据长宽比和开口面积等参数考虑了不同的 PIF。研究还提出了 PIF 中对角线外支撑的有效宽度比实心钢筋混凝土（RC）填充框架的有效宽度小的系数，以计算其初始侧向刚度。

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Lateral stiffness of partially infilled reinforced concrete (RC) frames

When infill is provided in a frame up to the full height of a column for a portion it is called a fully infilled frame (FIF). Whereas, when infill is provided up to a certain height of structural frames then it is called a partially infilled frame (PIF). Partial infills are often provided in buildings for ventilation purposes. Due to the devastating collapse of buildings in the presence of partial infill as evident from past earthquakes, researchers found it important to investigate the behavior of partial infill frames in lateral loading. The present study proposes a simplified macro modeling approach for PIFs based on finite element analysis. Different PIFs were considered based on parameters such as aspect ratio, and opening area. The study also proposes a reduction factor for the effective width of the off-diagonal strut in PIFs over that of the solid reinforced concrete (RC) infilled frame to calculate its initial lateral stiffness.

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来源期刊

Structures Engineering-Architecture

CiteScore

5.70

自引率

17.10%

发文量

1187

期刊介绍： Structures aims to publish internationally-leading research across the full breadth of structural engineering. Papers for Structures are particularly welcome in which high-quality research will benefit from wide readership of academics and practitioners such that not only high citation rates but also tangible industrial-related pathways to impact are achieved.