Interaction between Architectural Design and Seismic Performance of High-Rise Steel Buildings with Truss Belt Systems under Near-and Far-Fault Earthquakes

Authors

https://doi.org/10.48314/adb.v2i4.44

Abstract

With the increasing cost of land, limited horizontal space, and the demand for optimal vertical utilization in urban areas, the construction of high-rise buildings has grown significantly in recent decades. Integrating efficient architectural design and structural engineering is a major challenge in high-rise building development. The truss belt and outrigger system is recognized as an effective mechanism to enhance seismic performance, control lateral displacement, and improve architectural stability. In this study, nonlinear time-history analyses were conducted on a high-rise steel building subjected to near-fault and far-fault earthquakes to investigate the impact of truss belt configuration on seismic behavior. Results show that the inclusion of truss belt and outrigger systems increases the base shear by about 10% and 17% while reducing floor accelerations by approximately 14% and 23% under near- and far-fault earthquakes, respectively. Moreover, roof displacement and acceleration decreased by 3% and 6% for near-fault and 9% and 8% for far-fault ground motions. The torsional response analysis indicated a 26% reduction in floor plan twisting. The findings emphasize the importance of integrating architectural form and structural systems to achieve optimal seismic performance and architectural stability in high-rise steel buildings.

Keywords:

High-rise building, Truss belt system, Outrigger, Seismic performance, Architectural design, Near-fault earthquake, Far-fault earthquake

References

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Published

2025-06-10

Issue

Vol. 2 No. 4 (2025): Architectural Dimensions and Beyond

Section

Articles

How to Cite

Nejati, F., & Ashoori, A. . (2025). Interaction between Architectural Design and Seismic Performance of High-Rise Steel Buildings with Truss Belt Systems under Near-and Far-Fault Earthquakes. Architectural Dimensions and Beyond, 2(4), 277-290. https://doi.org/10.48314/adb.v2i4.44