Seismic Behavior of Tunnel Form Building under Lateral Cyclic Loading

Journal of Engineering and Technological Sciences

Haryati Awang¹  Mahmud Kori Effendi²  Nor Hayati Abdul Hamid³  Shamilah Anuar⁴ 

[1] Faculty of Civil and Earth Resources, Universiti Malaysia Pahang, 26300, Gambang, Kuantan, Pahang,;Fakultas Teknikal Sipil, Universitas Negeri Semarang, Jalan Sekaran, Gunung Pati, Kota Semarang, Jawa Tengah, 50229,;Institute for Infrastructure Engineering, Sustainability and Management (IIESM), Universiti Teknologi MARA, 40450 Shah Alam, Selangor;School of Environmental Engineering, Universiti Malaysia Perlis,Kompleks Pusat Pengajian Jejawi 302600, Arau, Perlis

关键词: damaged specimens;    ductility;    equivalent viscous damping;    rehabilitation;    stiffness;   

DOI  :  10.5614/j.eng.technol.sci.2018.50.2.5

学科分类：工程和技术（综合）

来源: Institute for Research and Community Services ITB

【 摘 要 】

A three-story single-unit tunnel form building (TFB) was designed using a non-seismic code of practice (BS 8110). Two one-third scale test models were constructed and tested under in-plane lateral cyclic loading and out-of-plane lateral cyclic loading, respectively. The specimens were tested at ±0.01%, ±0.1%, ±0.25%, ±0.5%, ±0.75%, ±1.0%, ±1.25%, ±1.5%, ±1.75% ±1.8, ±1.9% and ±2% drifts, after which severe cracks were observed on the wall-slab joints and wall panels. Subsequently, the damaged specimens were repaired and retrofitted by wrapping carbon fiber reinforced polymer (CFRP) around the damaged walls and affixing steel plates and steel angles at the wall-slab joints using several different repair and retrofitting schemes. The repaired specimens were retested using the same drifts. The comparison of the seismic behavior between unrepaired and repaired specimens was made based on visual observation of damage, hysteresis loops, lateral strength capacity, stiffness, ductility, and equivalent viscous damping. The experimental results showed that the repaired specimens were improved in terms of damage, lateral strength capacity, stiffness, ductility, and equivalent viscous damping. It is recommended to strengthen and rehabilitate tunnel form buildings after an earthquake using CFRP, additional shear walls, steel plates and steel angles.

【 授权许可】

CC BY