Evaluation of shear strength of high-strength concrete beams without stirrups
Joint Authors
Source
The Arabian Journal for Science and Engineering. Section B, Engineering
Issue
Vol. 33, Issue 2B (31 Oct. 2008), pp.321-336, 16 p.
Publisher
King Fahd University of Petroleum and Minerals
Publication Date
2008-10-31
Country of Publication
Saudi Arabia
No. of Pages
16
Main Subjects
Topics
Abstract AR
سوف نجري – في هذا البحث – دراسة تحليلية مقارنة لسلوك المزع لعمود خرساني مقوى.
و قد استخدمنا عدة تصاميم عالية مثل ACI الكندية و AASHT و التوصيف الأوربي, إضافة إلى الطريقة التي اقترحها ’’ زاريس’’.
و أجريت الاختبارات على 27 عمود مقوى – بدون تقوية شبكية – إضافة إلى 95 عمودا مقويا لها نفس الإبعاد و الأحمال.
و تتراوح قيم نسبة انتشار المزع إلى العمق (a/b) بين 1 – 6, و نسبة التقوية الطولية بين 0.35% - 1.94%.
و بتحليل بيانات 122 عمود تبين أن قوة المزع و نمط التلف تعتمد على مدى انتشار المزع و نسبة التقوية الطولية.
كما لاحظنا عدة اختلافات بين القيم المتوقعة و القيم التجريبية لكل من المزع و نسبة (a/b).
و كانت القيم التي حصلنا عليها باستخدام (ACI-318-02) أكثر دقة من مثيلاتها.
بينما كانت طريقة ،،زارايس،،أكثر ملاءمة للاستخدام عندما يكون معامل شد حديد التسلح أقل من 1%.
Abstract EN
In this paper, a comparative analysis on shear behavior of high-strength concrete beams using various international design approaches like ACI [1], Canadian [2].
AASHTO [3], European Code [4] and the method proposed by Zararis [5] is presented.
Twenty-seven reinforced concrete beams without web reinforcement were tested under three point loading.
In addition, 95 other similar beams having similar cross sectional dimensions, concrete strength, and loading conditions are analyzed [8-6].
The shear span-to-depth ratio ranged from 1 to 6 and longitudinal reinforcement ratio from 0.35 % to 1.94 %.
Based on the analysis of total of 122 similar beams, it is observed that shear strength and failure mode depends upon shear span and longitudinal reinforcement ratio.
For values of a / d ratio less than 2.5, the experimental shear strength was found greater than that predicted as per different shear design approaches ; however for slender beams having a / d ranging from 2.5 to 6 the predicted shear capacity was found greater.
It was noted that ACI 318-02 [1] predicts shear strength more accurately for values of tensile steel ratio greater than 1 %, whereas design approach proposed by Zararis [5] is more appropriate to be used where tensile steel ratio is less than 1 %.
American Psychological Association (APA)
Bukhari, Umran A.& Ahmad, Said. 2008. Evaluation of shear strength of high-strength concrete beams without stirrups. The Arabian Journal for Science and Engineering. Section B, Engineering،Vol. 33, no. 2B, pp.321-336.
https://search.emarefa.net/detail/BIM-330140
Modern Language Association (MLA)
Bukhari, Umran A.& Ahmad, Said. Evaluation of shear strength of high-strength concrete beams without stirrups. The Arabian Journal for Science and Engineering. Section B, Engineering Vol. 33, no. B2 (Oct. 2008), pp.321-336.
https://search.emarefa.net/detail/BIM-330140
American Medical Association (AMA)
Bukhari, Umran A.& Ahmad, Said. Evaluation of shear strength of high-strength concrete beams without stirrups. The Arabian Journal for Science and Engineering. Section B, Engineering. 2008. Vol. 33, no. 2B, pp.321-336.
https://search.emarefa.net/detail/BIM-330140
Data Type
Journal Articles
Language
English
Notes
Includes appendix : p. 336
Record ID
BIM-330140