Abstract
This article examined steel frames with shear beam-column connections to determine the effectiveness of different masonry infill walls under progressive collapse. This research concentrated on the shear connection, which is the most common type of steel beam-column connection in steel buildings. Furthermore, this work experimentally evaluated one-third-scale steel-framed configurations with a single shear beam-column connection and another infilled steel frame wall configuration from the literature to verify the validity of 3D finite element models developed using the program ABAQUS. Finite element models were then used to investigate 16 different kinds of steel frames with infill masonry as well as the influence of multiple frames and the number of stories. In addition, the effects of a fully infilled frame and those of a bare frame and an infilled frame with openings were compared in flexural and catenary action phases. Results revealed that the steel building’s structural strength and energy dissipation against progressive collapse are significantly improved by infill walls.
Highlights
Steel-framed multi-story structures are exposed to a wide variety of operational circumstances and situations during their service life
Several studies have investigated the progressive collapse of buildings exposed to accidental loads; the majority of studies have concentrated on bare framed structures and not filled frames, while little research has explored reinforced concrete (RC) buildings (Yu et al, 2019; Wang et al, 2020)
We looked into the effects of several frame types, including fully infilled, bare, and infilled with openings, as well as the impact of different numbers of frames and stories
Summary
Steel-framed multi-story structures are exposed to a wide variety of operational circumstances and situations during their service life. Shan et al (2016) studied the effects of infill walls on the progression of collapse in two one-third-scale, four-span, two-story RC frame buildings to identify the impact of quasi-static load and column removal scenarios. They determined that infilled walls may increase the resistance to progressive collapse by functioning as compressive struts that alternately distribute removal column stresses. Infill walls have a significant impact on the maximum applied vertical load and the initial rigidity This effect reduces ductility and alters the steel frame’s failure processes. Masonry infill walls were compared in flexural and catenary action phases on the basis of their mechanisms of failure and load-displacement response
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
