نتایج جستجو برای: reinforced concrete

تعداد نتایج: 106975  

2016
A. N. VAZQUEZ

New technologies and fabrication tools urge us to explore new materials and their potential for integration in architectural construction. One such material, Concrete Canvas, is explored in this paper for its hybrid characteristics that blend fabric and thin-shell tectonics. The potential of Concrete Canvas lies in its ability to modify itself from a flexible fabric that when activated with wat...

2002
Maria A. Aiello Francesco Focacci Antonio Nanni M. A. Aiello

The paper is devoted to the analysis of FRP reinforced concrete elements under thermal loads. As known, non metallic rebars present high values of transverse coefficients of the thermal expansion (CTE) with respect to concrete; as a consequence, when temperature increases, tensile stresses take place within the concrete that may produce splitting cracks and, eventually, the concrete cover failu...

Journal: :journal of rehabilitation in civil engineering 2014
azadeh alsadat asghari zahra tabrizian morteza hossein ali beigy gholamreza ghodrati amiri bahram navayineya

. this paper presents the results of an experimental investigation on shear strength enhancement of reinforced concrete deep beams externally reinforced with fiber reinforced polymer (frp) composites. a total of six deep beam specimens of two different classes, as-built (unstrengthened) and retrofitted were tested in the experimental evaluation program. two composite systems namely carbon/epoxy...

2015
S Tejaswi

Concrete is the material which is rapidly used in various conditions to sustain the compression loads and the corresponding bending and shear stress due to the applied compressive loads. The major drawback in concrete is that it is poor in tension though it is very efficient in compression. Hence to overcome this major drawback the concrete must be reinforced such that to make a homogeneous sub...

2008
Amjad J. Aref Wael I. Alnahhal

Fiber Reinforced Polymer (FRP) bridge systems are gaining wide acceptance among bridge engineers. At the same time, FRP bridge systems are relatively expensive when compared to traditional reinforced concrete bridge systems. In this study, the concept of the hybrid FRP-concrete structural systems is applied to a bridge superstructure. The hybrid FRP-concrete superstructure system is intended to...

Journal: :Comp. Applic. in Engineering Education 2002
Hua Jiang Yahya C. Kurama David A. Fanella

This paper introduces three interactive virtual laboratory modules for undergraduate and graduate level education on the behavior and design of reinforced concrete structures using the World Wide Web (WWW). Users can select and configure module parameters (such as reinforcement) to investigate the design and behavior of a reinforced concrete member or section. 2003 Wiley Periodicals, Inc. Compu...

C. B. K. Rao N. R. Dakshina Murthy S. R. R. Teja Prathipati,

Brittleness, which was the inherent weakness in High Strength Concrete (HSC), can be avoided by reinforcing the concrete with discontinuous fibers. Reinforcing HSC with more than one fiber is advantageous in an overall improvement of the mechanical performance of the composite. In this experimental study, Hybrid Fiber Reinforced High Strength Concrete (HyFR-HSC) mixes were formed by blending si...

Enhancement of strength and ductility is the main reason for the extensive use of FRP (fiber reinforced polymer) jackets to provide external confinement to reinforced concrete columns especially in seismic areas. Therefore, numerous researches have been carried out in order to provide a better description of the behavior of FRP confined concrete for practical design purposes. This study present...

Ali Kheiroddin Ali Reza Morteza'ee

Flanged shear walls are used extensively in moderate- and high-rise buildings to resist lateral loads induced by earthquakes. The seismic performance of many buildings is, therefore, closely linked to the behavior of the reinforced concrete walls. They must be carefully designed to provide not only adequate strength, but also sufficient ductility to avoid brittle failure under strong lateral lo...

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