Publisher

JCIVIL UPIYPTKJCIVIL UPIYPTK

Journal Civil Engineering CollaborationCivil Engineering Collaboration Abstract

West Sumatra is an earthquake-prone region that requires structural systems with sufficient strength, stiffness, and ductility to withstand seismic loads. This study evaluates the performance of a steel truss structure in Basko City Mall, Padang, using the Load and Resistance Factor Design (LRFD) method. Load calculations refer to loading protocol, while numerical analysis is carried out using Patran Nastran Student Edition 2023 to model structural behavior through the finite element method. The analysis focuses on five beam variations (B1, B2, B3, B4, and B5) tested under displacement to determine ultimate load capacity, stiffness, and plastic deformation capability. Results indicate that all beams are safe and stable under the applied loads. Beam B1 has the highest ultimate load capacity of 4153.09 kN, while Beam B3 provides the greatest stiffness of 41.048 N/mm. Beams B2, B4, B5 and B exhibit better ductility, allowing effective energy absorption before reaching failure. This study concludes that all beam variations are suitable for multi-story buildings in seismic-prone areas. The LRFD method proves effective in providing efficient and safe designs, while Patran Nastran supports more detailed analysis and can serve as a reference for future research on steel structure design.

Conclusion

Based on the analysis, it can be concluded that all six beams are able to work properly under the applied loading.Beam B1 showed the highest ultimate load, while the highest stiffness was found in beam B3.Beams B2, B4, and B5 had better ductility, allowing energy absorption and redistribution of forces before failure.All tested variations remained within the planned safety limits, indicating their suitability for structural applications.

Future Research

Penelitian lebih lanjut dapat dilakukan dengan memvariasikan jenis sambungan pada struktur truss baja untuk mengidentifikasi konfigurasi yang paling efektif dalam menyerap energi seismik dan meningkatkan kinerja struktur secara keseluruhan. Selain itu, studi parametrik yang lebih mendalam perlu dilakukan untuk mengeksplorasi pengaruh berbagai parameter desain, seperti rasio tinggi terhadap lebar dan ketebalan elemen, terhadap kapasitas dan daktilitas struktur. Terakhir, penelitian dapat difokuskan pada pengembangan model analisis yang lebih akurat dengan mempertimbangkan efek nonlinier material dan geometri, serta interaksi antara struktur dan fondasi, untuk memberikan prediksi kinerja yang lebih realistis dan andal dalam kondisi gempa bumi.

References

1. Modifikasi Struktur Gedung Menara Parkson Menggunakan Struktur Baja dengan Sistim Rangka Bresing Eksentrik... doi.org/10.35134/jcivil.v7i1.35Modifikasi Struktur Gedung Menara Parkson Menggunakan Struktur Baja dengan Sistim Rangka Bresing Eksentrik doi 10 35134 jcivil v7i1 35
2. Stability of laterally unsupported shear links in eccentrically braced frames - Özkılıç... onlinelibrary.wiley.com/doi/10.1002/eqe.3593Stability of laterally unsupported shear links in eccentrically braced frames ynzkly onlinelibrary wiley doi 10 1002 eqe 3593
3. Techno Press. study modified westergaard formula based dynamic model test shaking table techno press... doi.org/10.12989/sem.2017.64.5.661Techno Press study modified westergaard formula based dynamic model test shaking table techno press doi 10 12989 sem 2017 64 5 661

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