S. A. Anuar and N. H. Hamid and M. H. Hashim and S. M. D. Salleh
Comparison of Double Unit Tunnel Form Building before and after Repair and Retrofit under inPlane Cyclic Loading
1238 - 1241
2014
8
12
International Journal of Civil and Environmental Engineering
https://publications.waset.org/pdf/9999889
https://publications.waset.org/vol/96
World Academy of Science, Engineering and Technology
This paper present the experimental work of double
unit tunnel form building (TFB) subjected to inplane lateral cyclic
loading. A one third scale of 3storey double unit of TFB is tested
until its strength degradation. Then, the TFB is repaired and
retrofitted using additional shear wall, steel angle and CFRP sheet.
The crack patterns, lateral strength, stiffness, ductility and equivalent
viscous damping (EVD) were analyzed and compared before and
after repair and retrofit. The result indicates that the lateral strength
increases by 22 in pushing and 27 in pulling direction. Moreover,
the stiffness and ductility obtained before and after retrofit increase
tremendously by 87.87 and 39.66, respectively. Meanwhile, the
energy absorption measured by equivalent viscous damping obtained
after retrofit increase by 12.34 in pulling direction. It can be
concluded that the proposed retrofit method is capable to increase the
lateral strength capacity, stiffness and energy absorption of double
unit TFB.
Open Science Index 96, 2014