Zagazig University Digital Repository
Home
Thesis & Publications
All Contents
Publications
Thesis
Graduation Projects
Research Area
Research Area Reports
Search by Research Area
Universities Thesis
ACADEMIC Links
ACADEMIC RESEARCH
Zagazig University Authors
Africa Research Statistics
Google Scholar
Research Gate
Researcher ID
CrossRef
Effect of material properties on long-term deflections of GFRP reinforced concrete beams
Faculty
Science
Year:
2013
Type of Publication:
Article
Pages:
99-108
Authors:
Sharaky, I. A, Mias, C, Torres, Ll, Turon, A
DOI:
10.1016/j.conbuildmat.2012.11.055
Journal:
CONSTRUCTION AND BUILDING MATERIALS ELSEVIER SCI LTD
Volume:
41
Research Area:
Construction \& Building Technology; Materials Science
ISSN
ISI:000317528900013
Keywords :
Concrete, Fibre reinforced polymers, Shrinkage, Creep, Deflections, Long-term
Abstract:
The influence of compressive concrete strength and reinforcement ratio on long-term deflections in GFRP reinforced concrete beams is analysed in this paper. A total of 20 beams, cat with two different concrete strengths (30 and 50 MPa), and different reinforcement amounts of GFRP and steel, were tested under short-term loading and then subjected to different levels of sustained loading for a period of between 250 and 700 days. The results obtained revealed the influence of the concrete and reinforcement properties on long-term deflections. Thus, the higher the reinforcement ratio and the lower the compressive strength were, the higher the total-to-instantaneous deflection ratio was. The measured long-term deflections were compared to those calculated using available design equations for FRP RC structures, such as those from ACI 440.1R-06 and CSA-S806-02, as well as being compared to the CEB-FIP procedure. In addition, the experimental data were evaluated with a methodology proposed by the authors, based on multiplicative coefficients, obtained from a rational simplification of the Effective Modulus Method. Long-term deflections obtained with CEB-FIP and the proposed methodology were in good agreement with the experimental values. However, some differences were found when ACI 440.1R-06 or CSA-S806-02 procedures were applied. (C) 2012 Elsevier Ltd. All rights reserved.
Online
PDF
جامعة المنصورة
جامعة الاسكندرية
جامعة القاهرة
جامعة سوهاج
جامعة الفيوم
جامعة بنها
جامعة دمياط
جامعة بورسعيد
جامعة حلوان
جامعة السويس
شراقوة
جامعة المنيا
جامعة دمنهور
جامعة المنوفية
جامعة أسوان
جامعة جنوب الوادى
جامعة قناة السويس
جامعة عين شمس
جامعة أسيوط
جامعة كفر الشيخ
جامعة السادات
جامعة طنطا
جامعة بنى سويف