Seismic behavior assessment of low-rise reinforced concrete structural walls using quasi-static reversed cyclic loading protocol

Download
2016
Ezzatfar, Pourang
The reinforced concrete shear walls of low- to mid-rise residential buildings, having height to length ratio ranging from 1 to 3, are more of a concern in research studies in recent years. Since the failure mode of these walls depends on the interaction between shear and flexural action, predicting the failure mode of this type of shear walls is not straight forward. While seismic behavior of highrise walls (i.e. aspect ratio greater than about 3) is almost known and theoretical assumptions matches well with experimental findings, experimental and theoretical studies are still demanding to better understand the seismic behavior, failure modes, lateral load bearing and deformation capacities of low- to mid-rise RC shear walls. Most of the available experimental studies within the relevant iterature were done on isolated cantilever RC walls in laboratories. However, simulating the effect of earthquake loads on large scale RC shear walls surrounded by frame elements is very rare. In order to investigate the seismic performance of the RC shear walls in conjunction with other structural elements as a system in low- to mid-rise buildings, two ½ scaled three-story three-bay RC test frames with RC shear wall in middle bay were tested. One of the specimens was designed to Turkish earthquake code (TEC-2007) and Turkish reinforced concrete practice code (TS500-2000) and the other was designed according to TEC-1975 and TS500-1981. Modeling parameters and acceptance criteria for nonlinear analysis given by ASCE/SEI41-13 and TEC-2007 for the investigated RC shear wall specimens were assessed.

Suggestions

Influence of the shear wall area to floor area ratio on the seismic performance of existing reinforced concrete buildings
Günel, Ahmet Orhun; Burak Bakır, Burcu; Department of Civil Engineering (2013)
An analytical study is performed to evaluate the influence of shear wall area to floor area ratio on the behavior of existing mid-rise reinforced concrete buildings under earthquake loading. The seismic performance of five existing school buildings with shear wall ratios between 0.00% and 2.50% in both longitudinal and transverse directions and their strengthened counterparts are evaluated. Based on the structural properties of the existing buildings, additional buildings with varying shear wall ratios are ...
Seismic behavior of reinforced autoclaved aerated concrete wall panels
TAGHIPOUR, ARMIN; Canbay, Erdem; Binici, Barış; ALDEMİR, ALPER; Uzgan, Ugur; ERYURTLU, ZAFER (2018-09-01)
Vertical reinforced autoclaved aerated concrete (AAC) panel systems are among attractive alternatives for low‐rise buildings. The popularity of AAC panels in building construction is increasing due to their unique material properties, such as being light weight, good insulator, fire resistant combined with having high speed of erection and ease of quality control. However, past experimental evidence on the seismic response of reinforced vertical panels is rather limited with few tests on multi‐panel specime...
Seismic Strengthening with Precast Concrete Panels - Theoretical Approach
Baran, Mehmet; Canbay, Erdem; Tankut, Tugrul (2010-01-01)
An economical, structurally effective and practically applicable seismic retrofitting technique has been developed on the basis of the principle of strengthening the existing hollow brick infill walls by using high strength precast concrete panels. The technique would not require evacuation of the building and would be applicable without causing much disturbance to the occupant. For this purpose, a total of eighteen reinforced concrete frames with hollow brick infill walls were tested under reversed cyclic ...
Modelling of strengthened hollow brick infills
BARAN, MEHMET; Ozcelik, Ramazan; Sevil, Tugce; Canbay, Erdem (2013-02-01)
Strengthening the existing hollow brick infill walls by bonding high-strength precast concrete panels or applying steel fibre reinforced mortar was found to be an occupant-friendly seismic retrofitting technique for the buildings in use with deficient reinforced concrete structural systems. Both techniques convert the existing non-structural hollow brick infill walls into load-carrying structural members. To verify the effectiveness of the techniques, 20 reinforced concrete frames with hollow brick infill w...
Seismic behavior of autoclaved aerated concrete low rise buildings with reinforced wall panels
Gökmen, Furkan; Binici, Barış; Canbay, Erdem (Springer Science and Business Media LLC, 2019-07-01)
Reinforced Autoclaved Aerated Concrete (AAC) wall panels are more commonly used to construct load-bearing walls in low-rise prefabricated buildings located in seismic zones. In the scope of this study, the seismic response of buildings constructed with reinforced AAC wall panels was investigated. To this end, an in situ test was conducted on a two-story test building under reversed cyclic displacement excursions. It was determined that the test building could carry a lateral load of 60% more than its weight...
Citation Formats
P. Ezzatfar, “Seismic behavior assessment of low-rise reinforced concrete structural walls using quasi-static reversed cyclic loading protocol,” Ph.D. - Doctoral Program, Middle East Technical University, 2016.