Experimental Study on Shear Strength of High-Strength Concrete Beams

10.14359/7421 ◽  
2000 ◽  
Vol 97 (4) ◽  
Keyword(s):  
Experimental Study ◽  
Shear Strength ◽  
High Strength Concrete ◽  
Concrete Beams ◽  
High Strength ◽  
Strength Concrete

scholarly journals Experimental Study on the Torsional Behaviour of Prestressed HSC Hollow Beams

2020 ◽  
Vol 10 (2) ◽  
pp. 642 ◽  
Author(s):  
Luís Bernardo ◽  
Sérgio Lopes ◽  
Mafalda Teixeira
Keyword(s):  
Experimental Study ◽  
High Strength Concrete ◽  
Concrete Beams ◽  
Concrete Strength ◽  
High Strength ◽  
Experimental Program ◽  
Pure Torsion ◽  
Strength Concrete ◽  
Hollow Beams

This article describes an experimental program developed to study the influence of longitudinal prestress on the behaviour of high-strength concrete hollow beams under pure torsion. The pre-cracking, the post-cracking and the ultimate behaviour are analysed. Three tests were carried out on large hollow high-strength concrete beams with similar concrete strength. The variable studied was the level of longitudinal uniform prestress. Some important conclusions on different aspects of the beams’ behaviour are presented. These conclusions, considered important for the design of box bridges, include the influence of the level of prestress in the cracking and ultimate behaviour.

Shear Strength of Normal and High Strength Concrete Beams Reinforced with GFRP Bars

2003 ◽  
Author(s):  
Shawn P. Gross ◽  
Joseph Robert Yost ◽  
David W. Dinehart ◽  
Erik Svensen ◽  
Ning Liu
Keyword(s):  
Shear Strength ◽  
High Strength Concrete ◽  
Concrete Beams ◽  
High Strength ◽  
Strength Concrete ◽  
Gfrp Bars

Shear – moment analysis of reinforced high strength concrete beams containing steel fibres

1995 ◽  
Vol 22 (3) ◽  
pp. 462-470 ◽  
Author(s):  
Mahmoud Imam ◽  
Lucie Vandewalle ◽  
Fernand Mortelmans
Keyword(s):  
Shear Strength ◽  
Flexural Strength ◽  
High Strength Concrete ◽  
Steel Fibre ◽  
Concrete Beams ◽  
High Strength ◽  
Flexural Capacity ◽  
Steel Fibres ◽  
Strength Concrete ◽  
Web Reinforcement

This paper concerns the incorporation of steel fibres in singly reinforced high strength concrete beams without stirrups failing under the combined effect of flexure and shear. A new equation for predicting the shear strength of reinforced high strength concrete beams is developed. This equation shows a good correlation with own test data of 16 reinforced high strength concrete beams with and without steel fibres and numerous published experimental data for beams with concrete compressive strength up to 140 MPa. The flexural capacity of reinforced high strength concrete beams is also investigated. The existing ACI method for predicting the flexural strength of steel fibre concrete composites is slightly modified to be applicable for high strength concrete. Based on the proposed equations, an analytical model is developed for predicting the relative flexural capacity, i.e., the ratio of the moment with shear interaction to the pure flexural moment. Key words: high strength concrete, steel fibre, shear strength, flexural strength, stirrups, web reinforcement.

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