Earthquake response of GFRP-reinforced concrete squat walls with aspect ratios of 1.14 and 0.68

2021 ◽  
pp. 113556
Author(s):  
Islam Shabana ◽  
Ahmed Sabry Farghaly ◽  
Brahim Benmokrane
Keyword(s):  
Reinforced Concrete ◽  
Earthquake Response ◽  
Aspect Ratios ◽  
Squat Walls

scholarly journals Pounding Effects on the Earthquake Response of Adjacent Reinforced Concrete Structures Strengthened by Cable Elements

2014 ◽  
Vol 44 (2) ◽  
pp. 41-56 ◽  
Author(s):  
Angelos Liolios ◽  
Asterios Liolios ◽  
George Hatzigeorgiou ◽  
Stefan Radev
Keyword(s):  
Reinforced Concrete ◽  
Numerical Approach ◽  
Earthquake Response ◽  
Existing Buildings ◽  
The Finite Element Method ◽  
Time Step ◽  
Engineering Structures ◽  
Rc Structures ◽  
Incremental Approach ◽  
Rc Frames

Abstract A numerical approach for estimating the effects of pounding (seismic interaction) on the response of adjacent Civil Engineering structures is presented. Emphasis is given to reinforced concrete (RC) frames of existing buildings which are seismically strengthened by cable-elements. A double discretization, in space by the Finite Element Method and in time by a direct incremental approach is used. The unilateral behaviours of both, the cable-elements and the interfaces contact-constraints, are taken strictly into account and result to inequality constitutive conditions. So, in each time-step, a non-convex linear complementarity problem is solved. It is found that pounding and cable strengthening have significant effects on the earthquake response and, hence, on the seismic upgrading of existing adjacent RC structures.

scholarly journals Influence of geometric and material characteristics on the behavior of reinforced concrete beam-column connections

2017 ◽  
Vol 44 (5) ◽  
pp. 377-386
Author(s):  
R.K. Vandana ◽  
K.R. Bindhu
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beam ◽  
Ductile Failure ◽  
Reinforced Concrete Beam ◽  
Lateral Loads ◽  
Joint Shear Strength ◽  
Weak Beam ◽  
Aspect Ratios ◽  
Moment Resisting ◽  
Energy Dissipation Capacity

The design of reinforced concrete moment-resisting frames and hence beam-column connections is of great importance in earthquake prone areas. Beam-column joints, which should be sufficiently strong to resist and sustain lateral loads, are designed on the basis of the strong-column weak-beam concept so that they undergo ductile failure. The present study describes the cyclic loading performance of six interior beam-column connection specimens designed to be seismic-resistant with varying aspect ratios, concrete compressive strengths, and beam bar yield strengths. Results indicate that joint ductility and energy dissipation capacity can be enhanced by maintaining a unit aspect ratio. Moreover, joint shear strength can be improved significantly by increasing concrete compressive strength. Beam bar yield strength is observed to influence joint ductility considerably.

Seismic behavior of reinforced concrete squat walls with high strength reinforcements: An experimental study

2019 ◽  
Vol 20 (3) ◽  
pp. 911-931 ◽  
Author(s):  
Xiao‐Lei Chen ◽  
Jian‐Ping Fu ◽  
Xin Hao ◽  
Hong Yang ◽  
De‐Yi Zhang
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Seismic Behavior ◽  
High Strength ◽  
Squat Walls

Peak Shear Strength of Flanged Reinforced Concrete Squat Walls

2020 ◽  
Vol 146 (4) ◽  
pp. 04020037
Author(s):  
Jiaxing Ma ◽  
Chao-Lie Ning ◽  
Bing Li
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Peak Shear Strength ◽  
Squat Walls
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