PERENCANAAN PERLUASAN GEDUNG WORKSHOP AIRPORT FACILITIES DENGAN METODE LRFD DI BANDAR UDARA INTERNASIONAL JENDERAL AHMAD YANI SEMARANG

Perluasan gedung workshop airport facilities di Bandar Udara Internasional Jenderal Ahmad Yani Semarang menjadi kebutuhan penting seiring peningkatan aktivitas operasional dan kapasitas fasilitas pendukung bandara. Penelitian ini bertujuan merancang struktur baja gedung workshop yang aman menggunakan metode Load and Resistance Factor Design (LRFD), karena metode Allowable Stress Design (ASD) sudah tidak berlaku dalam standar perencanaan struktur terbaru. Selain itu, disusun Rencana Anggaran Biaya (RAB) untuk estimasi biaya.Metode yang digunakan adalah kuantitatif deskriptif teknikal dengan analisis struktur baja menggunakan metode LRFD. Proses perancangan meliputi analisis beban, pemilihan profil baja, evaluasi faktor keamanan struktur, serta penyusunan RAB yang mencakup biaya material, peralatan, dan tenaga kerja sesuai volume pekerjaan. Dalam merencanakan struktur bangunan digunakan SNI 1729:2020 tentang Spesifikasi Bangunan Baja Struktural, SNI 1726:2019 tentang Tata Cara Perencanaan Ketahanan Gempa untuk Struktur Bangunan Gedung dan Nongedung dan SNI 1727:2020 tentang Beban Minimum untuk Perencanaan Bangunan Gedung dan Struktur Lain. Pada penelitian ini digunakan perangkat lunak SAP2000 V26 untuk analisis struktur dan AutoCAD 2025 untuk pemodelan gedung. Gedung workshop airport facilities satu lantai berukuran 6 × 10 (m) dengan struktur baja. Profil yang digunakan: gording CNP 150.50.20.2,3; kolom dan regel WF 300.150.6,5.9; rafter WF 250.125.6.9; konsol WF 150.75.5.7; wind brace D10.RAB menunjukkan biaya pembangunan sebesar Rp.388.000.000,00 termasuk PPN 11%.
Kata Kunci: Struktur Baja, LRFD, Workshop, Profil Baja, Rencana Anggaran Biaya
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The expansion of the airport facilities workshop building at Jenderal Ahmad Yani International Airport Semarang has become an essential need in line with the increasing operational activities and the capacity of supporting airport facilities.This study aims to design a safe steel structure for the workshop building using the Load and Resistance Factor Design (LRFD) method, as the Allowable Stress Design (ASD) method is no longer valid in the latest structural planning standards.In addition, a Cost Budget Plan is prepared to estimate the cost.The method used is engineering quantitative descriptive, with steel structure
analysis using the LRFD method. The design process includes load analysis,selection of steel profiles, evaluation of structural safety factors, and the preparation of the cost estimation material, equipment, and labor according to work volume. In designing the structure, SNI 1729:2020 on Specifications for Structural Steel Buildings, SNI 1726:2019 on Earthquake Resistance Planning Procedures for Building and Non-building Structures, and SNI 1727:2020 on Minimum Loads for Building Planning and Other Structures are applied. This study uses SAP2000 V26 software for structural analysis and AutoCAD 2025 for building modeling. The airport facilities workshop building, measuring 6 × 10 (m), is designed as a single-story steel structure. Profiles used: CNP 150.50.20.2,3 for purlins; WF 300.150.6,5.9 for columns and regents; WF 250.125.6.9 for rafters; WF 150.75.5.7 for consoles; and D10 for wind braces. The cost estimation shows a total construction cost of IDR 388.000.000,00 including 11% VAT.
Keywords: Steel Structure, LRFD, Workshop, Steel Profiles, Cost Estimation