scholarly journals EXPERIMENTAL STUDY ON BENDING STRENGTH AND RIGIDITY OF REINFORCED CONCRETE SLABS WHERE LAPPED SPLICES ARE PLACED OF MAXIMUM PEAK BENDING MOMENT

1992 ◽  
Vol 433 (0) ◽  
pp. 29-37
Author(s):  
Satoshi ECHIZENYA
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Bending Strength ◽  
Bending Moment ◽  
Concrete Slabs ◽  
Maximum Peak ◽  
Reinforced Concrete Slabs

scholarly journals Experimental study on flexural behavior of GFRP reinforced concrete slabs

2021 ◽  
Vol 676 (1) ◽  
pp. 012060
Author(s):  
Sun Li-xiang ◽  
Lin Peng-zhen ◽  
Yang Zi-jiang ◽  
Liu Ying-long ◽  
Shen Qu
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Flexural Behavior ◽  
Concrete Slabs ◽  
Reinforced Concrete Slabs

Comparison of steel strength retention models for fire exposed concrete slabs

2021 ◽  
Author(s):  
Thomas Thienpont ◽  
Ruben Van Coile ◽  
Robby Caspeele ◽  
Wouter De Corte
Keyword(s):  
Reinforced Concrete ◽  
Construction Materials ◽  
Structural Response ◽  
Bending Moment ◽  
Concrete Slabs ◽  
Structural Behaviour ◽  
Moment Capacity ◽  
Retention Models ◽  
Reinforced Concrete Slabs ◽  
Strength Retention

<p>In structural fire engineering, there is a growing trend towards the use of performance based approaches to evaluate structural behaviour during or after a fire. Consequently, there is a need for an increased level of confidence in properties of construction materials used in these performance based approaches. Both steel and concrete have been experimentally observed to show a dispersal in the value of their respective structural strengths, at room temperature, but more significantly at high temperatures. In this paper the influence of three temperature dependent strength retention models for reinforcement steel on the bending moment capacity of simply supported reinforced concrete slabs exposed to a standardized fire is analysed. The results show that the structural response of reinforced concrete slabs strongly depends on the chosen probabilistic model, thus highlighting the importance of appropriate model selection.</p>

scholarly journals Experimental study of solid RC slabs strengthened on the upper surface

2018 ◽  
Vol 11 (2) ◽  
pp. 255-278
Author(s):  
C. O. CAMPOS ◽  
L. M. TRAUTWEIN ◽  
R. B. GOMES ◽  
G. MELO
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Failure Load ◽  
Concrete Strength ◽  
Reinforcement Rate ◽  
Concrete Slabs ◽  
Minimum Reinforcement ◽  
Reinforced Concrete Slabs ◽  
Load Limit ◽  
Rc Slabs

Abstract The current study presents the results of tests conducted in 5 reinforced concrete slabs (415 cm x 415 cm x 7 cm) in order to experimentally check the possibility of reinforcing their upper surface, as well as to assess the adhesion between the old and the reinforcing concrete layers in the slab. The main variables were the concrete and reinforcement strength deficiencies. Reference slab “L1” was tested until reaching the failure load, whereas the others were tested until reaching certain load limit, reinforced and retested until reaching the failure load. All slabs failed under bending. The strengthening increased the failure load by 30% in slabs reinforced at minimum reinforcement rate when they were compared to similar non-reinforced slabs, regardless of the original concrete strength. None of the tests conducted in the reinforced slabs showed detachments or evidence of adhesion loss between the old and reinforcing concretes.

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