Experimental evaluation of seismic performance of low-shear strength masonry infills with openings in reinforced concrete frames with deficient seismic details

2013 ◽  
Vol 23 (15) ◽  
pp. 1190-1210 ◽  
Author(s):  
Ali Mansouri ◽  
Mohammad S. Marefat ◽  
Mohammad Khanmohammadi
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Seismic Performance ◽  
Experimental Evaluation ◽  
Concrete Frames ◽  
Reinforced Concrete Frames ◽  
Masonry Infills ◽  
Low Shear

scholarly journals Investigation of Diagonal Strut Actions in Masonry-Infilled Reinforced Concrete Frames

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Seung-Jae Lee ◽  
Tae-Sung Eom ◽  
Eunjong Yu
Keyword(s):  
Reinforced Concrete ◽  
Failure Mode ◽  
Yield Criterion ◽  
Friction Angle ◽  
Concrete Frames ◽  
Element Analysis ◽  
Reinforced Concrete Frames ◽  
Infilled Frames ◽  
Masonry Infills ◽  
Push Down

AbstractThis study analytically investigated the behavior of reinforced concrete frames with masonry infills. For the analysis, VecTor2, a nonlinear finite element analysis program that implements the Modified Compression Field Theory and Disturbed Stress Field Model, was used. To account for the slip behavior at the mortar joints in the masonry element, the hyperbolic Mohr–Coulomb yield criterion, defined as a function of cohesion and friction angle, was used. The analysis results showed that the lateral resistance and failure mode of the infilled frames were significantly affected by the thickness of the masonry infill, cohesion on the mortar joint–brick interface, and poor mortar filling (or gap) on the masonry boundary under the beam. Diagonal strut actions developed along two or three load paths on the mortar infill, including the backstay actions near the tension column and push-down actions near the compression columns. Such backstay and push-down actions increased the axial and shear forces of columns, and ultimately affect the strength, ductility, and failure mode of the infilled frames.

Rocking Spine for Enhanced Seismic Performance of Reinforced Concrete Frames with Infills

2016 ◽  
Vol 142 (11) ◽  
pp. 04016096 ◽  
Author(s):  
Henry V. Burton ◽  
Gregory G. Deierlein ◽  
David Mar ◽  
Khalid M. Mosalam ◽  
Janise Rodgers ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Concrete Frames ◽  
Reinforced Concrete Frames
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