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• W4226322163 abstract "During the post-earthquake disaster in Lombok and Palu, tens of thousands of houses were collapsed, causing hundreds of thousands of people to become homeless. Currently, the instant steel house (RISBA) has been developed in order back to build in substituting the collapsed house. However, based on the real field application, the construction of RISBA takes time around 5 to 7 days of work time due to the on-site welding connection system of the structural joint. The welding system consumes a long time, but it also causes low construction quality due to limited human resources. This study proposes the fast connection system of RISBA with a clamped pocket mechanism (CPM) connection system. That connection system expected could accelerate the construction time of RISBA to be shorter (around one day) than the conventional one. In this preliminary study, the proposed connection system's numerical model was developed with the finite element method by using Abaqus software. As the focus study, we simplify a T-joint connection for the beam-column joint's steel pipe with cantilever beam idealization. In the numerical model, the CPM was installed in the middle of the T-joint to be tested with a pull-out test and lateral cyclic loading test under displacement control. The CPM pocket's appropriate development depth is examined by varying the steel pipe's embedment with 1.5, 2, 2.5, and 3 times of diameter. Based on the pull-out test simulation, the connection's tensile capacity is around 10% of the element member yield strength. The CPM pocket's appropriate development depth was 2.5 times of steel pipe diameter or larger than it. Furthermore, in a proper development depth of the pocket, the proposed connection system stiffness could achieve fully-restrained (FR) criteria. Moreover, the inter-story drift angle capacity could exceed the special moment-resisting (SMF) criteria. However, in the case of insufficient development depth of the pocket (less than 2.5D), lack of bending moment strength and pinching behavior of the hysteresis loop with small hysteretic energy occurred. Finally, this numerical simulation result of the proposed CPM type for RISBA could be the basis for the fast connection development visibility." @default.
• W4226322163 created "2022-05-05" @default.
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• W4226322163 date "2022-01-01" @default.
• W4226322163 modified "2023-10-01" @default.
• W4226322163 title "Investigation of Fast Connection (Clamped Pocket Mechanics) for Modular Instant Steel House with Finite Element Analysis: Back to Build Post-disaster" @default.
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• W4226322163 doi "https://doi.org/10.1007/978-981-16-7924-7_50" @default.
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