scholarly journals Shear Behavior of Bedded Salt Interfaces under Direct Shear Loading.

2019 ◽  
Author(s):  
Steven R. Sobolik ◽  
Benjamin Reedlunn
Keyword(s):  
Shear Behavior ◽  
Shear Loading ◽  
Direct Shear

Study of shear behavior of grouted vertical joints between precast concrete wall panels under direct shear loading

2018 ◽  
Vol 20 (2) ◽  
pp. 564-582 ◽  
Author(s):  
Aparup Biswal ◽  
Anumolu Meher Prasad ◽  
Amlan Kumar Sengupta
Keyword(s):  
Precast Concrete ◽  
Shear Behavior ◽  
Shear Loading ◽  
Direct Shear ◽  
Concrete Wall ◽  
Wall Panels

Direct and Flexural Shear Strength of Composite Beam with Perforbond Rib

2018 ◽  
Vol 26 (1) ◽  
pp. 9-18
Author(s):  
Dooyong Cho ◽  
Jinwoong Choi ◽  
Hoseong Jeong
Keyword(s):  
Shear Stress ◽  
Shear Test ◽  
Shear Resistance ◽  
Shear Behavior ◽  
Flexural Behavior ◽  
Direct Shear ◽  
Test Results ◽  
Shear Connectors ◽  
The Difference ◽  
Push Out

When Perfobond Rib shear connectors are used as flexural materials in structures such as bridges, they show flexural shear behavior due to external force, rather than direct shear behavior. The aim of this study is thus to analyze the difference between both behaviors. First, we prepared a specimen to analyze direct shear behavior using Perfobond Rib shear connectors, analyzed the characteristics of behavior with a push-out test and proposed a formula of shear resistance assessment. Proposed formula shows a relatively good fit with less than 10% error. A flexural shear test was then conducted based on the result of the direct shear test. Based on the static flexural test it analyzed the flexural behavior and the flexural shear stress it calculated. Direct shear stress and EN 1994-1-1 to lead and be calculated, it compared the flexural shear stress and it analyzed in about the shear resistance stress which it follows in load direction. Finally, we compared both test results, and the comparison showed that the flexural shear stress is approximately 6% stronger than the direct shear stress.

scholarly journals Shear Behavior of Hollow Concrete Block Masonry with Precast Concrete Anti-Shear Blocks

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Xinlei Yang ◽  
Hanchen Wu ◽  
Jianxin Zhang ◽  
Hailiang Wang
Keyword(s):  
Shear Strength ◽  
Precast Concrete ◽  
Ductile Failure ◽  
Concrete Block ◽  
Shear Behavior ◽  
Shear Loading ◽  
Control Group ◽  
Double Shear ◽  
Shear Failures ◽  
Maximum Shear Strength

In order to improve the shear behavior of hollow concrete block masonry, precast concrete anti-shear blocks were proposed to enhance the shear strength of hollow concrete block masonry. Four groups of hollow concrete block masonry triplets with precast concrete anti-shear blocks were tested under shear loading, and their behaviors were compared with a control group. The results show that as the height of precast concrete anti-shear blocks increases, the shear strength of the masonry increases. The maximum shear strength of masonry triplets with precast concrete anti-shear blocks was 234.48 percent higher than that of the control specimens. The shear strength of masonry triplets was mainly determined by the failure of hollow concrete block unit. The majority of specimens exhibited double shear failures; however, these failures showed characteristics of ductile failure to a certain extent. Based on the experimental results, a equation for calculating the shear strength of masonry with precast concrete anti-shear blocks was proposed.

scholarly journals Shear Slip Instability Behavior of Rock Fractures under Prepeak Tiered Cyclic Shear Loading

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Minglei Zhai ◽  
Haibo Bai ◽  
Luyuan Wu
Keyword(s):  
Shear Loading ◽  
Shear Displacement ◽  
Shear Instability ◽  
Rock Fractures ◽  
Direct Shear ◽  
Energy Evolution ◽  
Loading Test ◽  
Cyclic Shear ◽  
Loading Paths ◽  
Rock Specimens

In this paper, shear displacement properties of rock fractures were studied, and the energy evolution process was analyzed before sliding instability under complex shear loading paths. The artificial prefabrication method was used to simulate the natural rock fractures, which are difficult to obtain in the natural environment. The prepeak tiered cyclic loading tests under constant normal loading were performed on six rock specimens with fractures by rock direct shear apparatus (RDS-200). To obtain the stress difference of adjacent cycles, the direct shear test was conducted on the other six rock specimens with fractures before the prepeak tiered cyclic shear loading test. The variation trend of residual shear displacement (RSD) and the similarity of loading and unloading curves before slip instability were obtained by analyses of prepeak tiered cyclic shear loading test data. Energy evolution laws of rock fractures were analyzed with the consideration of the hysteresis characteristics, according to the hysteresis effect of shear displacement behind shear stress. This paper provides guidance for the study on shear instability of rock fractures under complex loading paths.

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