Behavior of High Strength Concrete L-Beams Under Combined Bending and Shear

This investigation examines experimentally and statistically the behaviorand ultimate strength of L-shape reinforced high strength concrete beamsunder combined bending and shear. The experimental investigation consists ofcasting and testing of nine beams which were tested under bending and shear.The...

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Main Authors: Omer Aziz, Ferhad Karim
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2007-02-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_181439_e3fe16ef7eaea37cf867f8d4a6d14884.pdf
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author Omer Aziz
Ferhad Karim
author_facet Omer Aziz
Ferhad Karim
author_sort Omer Aziz
collection DOAJ
description This investigation examines experimentally and statistically the behaviorand ultimate strength of L-shape reinforced high strength concrete beamsunder combined bending and shear. The experimental investigation consists ofcasting and testing of nine beams which were tested under bending and shear.The effect of compressive strength, longitudinal reinforcement on the load carrycapacity and the effect of transverse reinforcement on the shear strength isstudied. An increase in compressive strength by (65.56%) causes an increase inload carrying capacity and shear strength at cracking load by (21.47% and162.9%) respectively. An increase in longitudinal reinforcement ratio forbending by (153.8%) caused an increase in load carrying capacity by (46.37%)when the longitudinal reinforcement ratio is kept constant, an increase intransverse reinforcement index by(59.25% %) causes an increase in shearstrength at ultimate load by (6.55 %).By using multiple nonlinear stepwise regression method, based on data inthis research and from other literature; equations were proposed for predictingshear strength at cracking and ultimate loads. These proposed equations showgood agreement and they are conservative when compared with equations givenby Codes of practice.
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spelling doaj.art-1ce67d937e114b879a908e3a914777192024-02-04T17:55:09ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582007-02-0125231232710.30684/etj.25.2.19181439Behavior of High Strength Concrete L-Beams Under Combined Bending and ShearOmer AzizFerhad KarimThis investigation examines experimentally and statistically the behaviorand ultimate strength of L-shape reinforced high strength concrete beamsunder combined bending and shear. The experimental investigation consists ofcasting and testing of nine beams which were tested under bending and shear.The effect of compressive strength, longitudinal reinforcement on the load carrycapacity and the effect of transverse reinforcement on the shear strength isstudied. An increase in compressive strength by (65.56%) causes an increase inload carrying capacity and shear strength at cracking load by (21.47% and162.9%) respectively. An increase in longitudinal reinforcement ratio forbending by (153.8%) caused an increase in load carrying capacity by (46.37%)when the longitudinal reinforcement ratio is kept constant, an increase intransverse reinforcement index by(59.25% %) causes an increase in shearstrength at ultimate load by (6.55 %).By using multiple nonlinear stepwise regression method, based on data inthis research and from other literature; equations were proposed for predictingshear strength at cracking and ultimate loads. These proposed equations showgood agreement and they are conservative when compared with equations givenby Codes of practice.https://etj.uotechnology.edu.iq/article_181439_e3fe16ef7eaea37cf867f8d4a6d14884.pdfhigh strength concretel-shape beambending and shear
spellingShingle Omer Aziz
Ferhad Karim
Behavior of High Strength Concrete L-Beams Under Combined Bending and Shear
Engineering and Technology Journal
high strength concrete
l-shape beam
bending and shear
title Behavior of High Strength Concrete L-Beams Under Combined Bending and Shear
title_full Behavior of High Strength Concrete L-Beams Under Combined Bending and Shear
title_fullStr Behavior of High Strength Concrete L-Beams Under Combined Bending and Shear
title_full_unstemmed Behavior of High Strength Concrete L-Beams Under Combined Bending and Shear
title_short Behavior of High Strength Concrete L-Beams Under Combined Bending and Shear
title_sort behavior of high strength concrete l beams under combined bending and shear
topic high strength concrete
l-shape beam
bending and shear
url https://etj.uotechnology.edu.iq/article_181439_e3fe16ef7eaea37cf867f8d4a6d14884.pdf
work_keys_str_mv AT omeraziz behaviorofhighstrengthconcretelbeamsundercombinedbendingandshear
AT ferhadkarim behaviorofhighstrengthconcretelbeamsundercombinedbendingandshear