Structural Analysis of The UMY Admissions Building Vertical Expansion Using Special Moment Resisting Frames

Hendro Susilo (Universitas Merdeka Madiun)
Nur Huda (Universitas Merdeka Madiun)
Iin Ernawati Ernawati (Universitas Merdeka Madiun)
Linda Fatikha Wulandari (Universitas Veteran Bangun Nusantara)
Muhammad Koderi H.W. (Universitas Islam Darul ‘Ulum Lamongan)
Muhammad Gunawan Perdana (Univ. Islam Kalimantan Muhammad Arsyad Al Banjari Banjarmasin)
Samsul Arif (Universitas Islam Lamongan)
Zahira Afsahinniswah (Universitas Bojonegoro)
Fatchur Roehman (Universitas Islam Nahdlatul Ulama Jepara)
Satrio Adi Wahyu Nugroho (Universitas Islam Batik Surakarta)
Alfin Sahila (Universitas Sains Al-Qur’an)

Jurnal Civil Engineering Study
Vol. 6 No. 02 (2026): Jurnal Civil Engineering Study

The Admission Building of Universitas Muhammadiyah Yogyakarta is a three-story structure developed into four stories due to increasing space demands. This vertical expansion increases gravity and lateral loads, necessitating a superstructure redesign to ensure structural safety. The design complies with SNI 1729:2020 (steel), SNI 2847:2019 (concrete), SNI 1727:2020 (loading), and SNI 1726:2019 (seismic). Structural analysis via SAP2000 v22 utilized 25 MPa concrete, BJ 37 steel, and 400 MPa deformed reinforcement. Results indicate the roof structure employs IWF 300.150.6,5.9 mm, HWF 400.200.8.13 mm, and regel 250.125.6.9 steel trusses with CNP 150.75.20.4,5 mm purlins. Floor slabs are designed with a thickness of 130 mm, standard roof slabs at 100 mm, and water tank slabs at 150 mm. The building implements a Special Moment Resisting Frame (SMRF) system. The main beam (B1) dimension is 300×700 mm, while main columns utilize 600×600 mm (K1) and 400×600 mm (K2) sections. All analytical outcomes demonstrate that the proposed superstructure satisfies the strength, ductile stiffness, and functional stability criteria in accordance with applicable standards.