ANALISIS RESPON STRUKTUR UNTUK MITIGASI KEGAGALAN AKIBAT POUNDING PADA BANGUNAN (STUDI KASUS: GEDUNG E INSTITUT TEKNOLOGI SUMATERA)
DOI:
https://doi.org/10.59003/nhj.v6i1.2277Keywords:
pounding, response spectrum, P-Delta, bracing, structural mitigationAbstract
Structural pounding may occur when adjacent buildings experience earthquake-induced lateral displacement without an adequate separation gap, potentially causing structural damage. This study aims to evaluate the structural condition of Building E at Institut Teknologi Sumatera, identify the potential for structural pounding, and propose appropriate mitigation strategies. The research employed the Schmidt rebound hammer test, collection of existing structural data, structural modelling, and response spectrum analysis in accordance with SNI 1726:2019 by evaluating the structural period, inter-story drift, P-Delta effects, and separation distance. The results show that the P-Delta stability coefficients remain within the allowable limits and that the existing separation gap of 50 mm exceeds the minimum required distance of 30.195 mm, indicating no potential for pounding under the analysed seismic loading conditions. To improve seismic performance, a bracing system is recommended to increase structural stiffness and reduce lateral displacement. Based on these evaluations, Building E at Institut Teknologi Sumatera meets the structural performance requirements under the analysed seismic parameters.
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