Response Behaviour of High‐Rise Modular Building under Wind and Seismic Loads

Abstract

Singapore has adopted modular construction method known as Prefabricated Prefinished Volumetric Construction (PPVC), where this method requires modules to be prefabricated in a factory environment and subsequently transported to site for installation. A 40‐storey steel‐concrete composite PPVC building consisting of a modular structural frame and a central reinforced concrete (RC) core wall subjected to wind and seismic loading combinations are studied on the global response behavior building drift behavior. The case study is used to investigate the structural response behavior throughout the working life of the building under the service limit state. The adjacent modules are connected horizontally using a tie steel plate idealized by a pin‐pin connection while upper and lower modules are connected vertically using a vertical steel thread rod secured with locking nut idealized by a pin‐ended connection. The modules are braced to a central RC core wall. Continuous semi‐rigid floor diaphragm action is also considered in each floor. The study reveals the importance of inter‐module connection and the floor diaphragm action for the structural interaction between modules and central RC core wall.

Robustness of Corner-Supported Modular Steel Buildings with Core Walls

“…It should be noted that this assumption for the building with fewer stories, such as in case no. 1 and the one in the former study [23] with less likelihood of plastic hinge formation, can substantially improve computational runtime.…”

“…It should be noted that this assumption for the building with fewer stories, such as in case no. 1 and the one in the former study [23] with less likelihood of plastic hinge formation, can substantially improve computational runtime. To study the effect of fully pinned intra-module connections on the robustness of the eight-story building, all semi-rigid beam-column connections turn into pinned ones.…”

“…Therefore, a secondary system, such as a core wall system, is essential in mid-to high-rise MSBs [22]. Chua et al [18] and Yee [23] investigated the lateral performance of a high-rise MSB with a central concrete core. Bi et al [19] also studied the lateral performance of a multi-story MSB with two concrete cores under wind loads, as a case study located in China.…”

Robustness of Corner-Supported Modular Steel Buildings with Core Walls

“…Figure 30 shows that this assumption conservatively ensures the building's robustness. It should be noted that this assumption for the building with fewer stories, such as case 1 and the one in the former study [23] with less likelihood of plastic hinge formation, can substantially improve computational runtime. To study the effect of fully pinned intra-module connections on the robustness of the eight-story building, all semi-rigid beam-column connections turn into pinned ones.…”

“…Some notions have been put forward in recent research to overcome the former shortcomings, ranging from developing innovative inter-modular connections [14][15][16] as well as precast concrete core wall systems [17][18][19] to various module layouts [20,21].Therefore, a secondary system such as a core wall system is essential in mid-to high-rise MSB [22]. Chua et al [18] and Yee [23] investigated the lateral performance of a high-rise MSB with a central concrete core. Bi et al [19] also, studied the lateral performance of a multi-story MSB with two concrete cores under wind loads, as a case study located in China.…”