an investigation of stress-strain behavior of frp-confined concrete under cyclic compressive loading
نویسندگان
چکیده
one important application of fiber reinforced polymer (frp) is to confine concrete as frp jackets in seismic retrofit process of reinforced concrete structures. confinement can improve concrete properties such as compressive strength and ultimate axial strain. for the safe and economic design of frp jackets, the stress-strain behavior of frp-confined concrete under monotonic and cyclic compression needs to be properly understood and modeled. according to literature review, it has been realized that although there are many studies on the monotonic compressive loading of frp-confined concrete, only a few studies have been conducted on the cyclic compressive loading. therefore, this study is aimed at investigating the behavior of frp-confined concrete under cyclic compressive loading. a total of 18 cylindrical specimens of frp-confined concretewere tested in uniaxial compressive loading with different wrap thickness, and loading patterns. the results obtained from the tests are presented and examined based on analysis of test results predictive equations for plastic strain and stress deterioration were derived. the results are also compared with those from two current models,comparison revealed the lack of sufficient accuracy of the current models to predict stress-strain behavior and accordingly some provisions should be incorporated.
منابع مشابه
Behavior of FRP-Confined Reactive Powder Concrete Columns under Eccentric Loading
Fiber reinforced Polymers (FRP) have widely used for the purposes of enhances strength and ductility of concrete columns. Proper design of such hybrid columns, however, requires a better recognition of the behavior of concrete columns confined with FRP. In this paper, the influence of FRP thickness, concrete compressive strength, and column size on the performance of eccentrically loaded reacti...
متن کاملSubstructure Model for Concrete Behavior Simulation under Cyclic Multiaxial Loading
This paper proposes a framework for the constitutive model based on the semi-micromechanical aspects of plasticity, including damage progress for simulating behavior of concrete under multiaxial loading. This model is aimed to be used in plastic and fracture analysis of both regular and reinforced concrete structures, for the framework of sample plane crack approach. This model uses multilamina...
متن کاملbehavior of frp-confined reactive powder concrete columns under eccentric loading
fiber reinforced polymers (frp) have widely used for the purposes of enhances strength and ductility of concrete columns. proper design of such hybrid columns, however, requires a better recognition of the behavior of concrete columns confined with frp. in this paper, the influence of frp thickness, concrete compressive strength, and column size on the performance of eccentrically loaded reacti...
متن کاملBehavior of FRP-Confined Concrete-Filled Steel Tube Columns
This paper presents the results of an experimental study into the behavior of concrete-filled steel tube columns confined by fiber-reinforced polymer (FRP). Eleven columns were tested to investigate the effects of the FRP layer number, the thickness of the steel tube and concrete strength on their load capacity and axial deformation capacity. The experimental results indicated that the FRP wrap...
متن کاملConcrete-Filled-Large Deformable FRP Tubular Columns under Axial Compressive Loading
The behavior of concrete-filled fiber tubes (CFFT) polymers under axial compressive loading was investigated. Unlike the traditional fiber reinforced polymers (FRP) such as carbon, glass, aramid, etc., the FRP tubes in this study were designed using large rupture strains FRP which are made of recycled materials such as plastic bottles; hence, large rupture strain (LRS) FRP composites are enviro...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
international journal of civil engineeringجلد ۱۰، شماره ۳، صفحات ۲۰۱-۲۰۹
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023