scholarly journals Fundamental Study on Combination of Dowel Action and Shear Transfer on Concrete Roughening for Seismic Retrofit Joint

2019 ◽  
Vol 30 (0) ◽  
pp. 35-43
Author(s):  
Yukie Okuyama ◽  
Yuya Takase ◽  
Takahide Abe ◽  
Takeshi Hiwatashi
Keyword(s):  
Seismic Retrofit ◽  
Fundamental Study ◽  
Shear Transfer ◽  
Dowel Action

scholarly journals Shear transfer across cracks in reinforced concrete due to aggregate interlock and to dowel action Shear transfer in cracked reinforced concrete

1986 ◽  
Vol 38 (134) ◽  
pp. 47-51 ◽  
Author(s):  
S. G. Millard ◽  
R. P. Johnson ◽  
Sandro Dei Poli ◽  
Pietro Gambarova ◽  
Cengiz Karakoç
Keyword(s):  
Reinforced Concrete ◽  
Shear Transfer ◽  
Dowel Action ◽  
Aggregate Interlock

Mechanism of shear transfer in reinforced concrete beams

1977 ◽  
Vol 4 (2) ◽  
pp. 145-152
Author(s):  
K. N. Smith ◽  
S. M. Fereig
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beams ◽  
Measurement Data ◽  
Reinforced Concrete Beams ◽  
Compression Zone ◽  
Interface Shear ◽  
Small Component ◽  
Shear Transfer ◽  
Dowel Action ◽  
Web Reinforcement

The mechanism of shear transfer in reinforced concrete beams with short shear spans is investigated with a view to defining the relative contribution of various component actions such as interface shear transfer across the characteristic inclined crack in such members, shear transferred by the uncracked compression zone, dowel action by the longitudinal tension reinforcement, and the contribution of the web reinforcement. The members tested and analyzed have a shear span to depth ratio of 1.5 and were loaded in the common framing situation involving shear on the sides of the members.For the beams either with horizontal web reinforcement or without any web reinforcement the distribution of internal forces was similar, with interface shear transfer, dowel action, and shear carried by the compression zone contributing to the capacity. In the case of members for which vertical web reinforcement was provided, interface shear transfer and dowel action were decreased to comparatively small component actions in the system. Acquisition of extensive measurement data and analysis of the behaviour history through various stages of loading permit the mechanism of shear transfer to be quantitatively defined.

scholarly journals Analytical Evaluation on Shear Transfer Mechanism of Indirect Joints in Seismic Retrofit Method using Steel Braces

2013 ◽  
Vol 24 (1) ◽  
pp. 11-18
Author(s):  
Shengdian Liang ◽  
Takashi Kashiwazaki ◽  
Nobuyuki Izumi ◽  
Hiroshi Noguchi
Keyword(s):  
Seismic Retrofit ◽  
Transfer Mechanism ◽  
Analytical Evaluation ◽  
Shear Transfer

scholarly journals Analysis of Dowel Action in Reinforced Concrete Beams with Shear Reinforcement

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sreenivasa Prasad Joshi ◽  
P. Poluraju ◽  
Umesh K. Singh
Keyword(s):  
Reinforced Concrete Beams ◽  
Transverse Reinforcement ◽  
Compression Zone ◽  
Structural Behaviour ◽  
Empirical Formulas ◽  
Shear Transfer ◽  
Four Point Bending ◽  
Dowel Action ◽  
Bending Load ◽  
Aggregate Interlocking

Abstract The shear transfer mechanism was examined to view the contributions of different components of shear transfer such as aggregate interlocking, dowel force and uncracked compression zone. Understanding the role of various shear transfer components with transverse reinforcement provided was complex due to traditional difficulties involved in detail assessment of accompanying kinematics during the failure. In the present paper, the issue was addressed by employing sixteen specimens and grouped under two categories representing conventional beams and beams with preformed cracks and were tested under four - point bending load with a shear span to depth ratio of 1.26 by increasing the characteristic strength of concrete. From the results obtained, empirical formulas proposed were also evaluated and it was concluded that the results were consistent and contribution of shear transfer across uncracked compression zone was maximum in shear resistance with transverse reinforcement provided. Later structural behaviour was also assessed and it was concluded that beams with preformed cracks had exhibited greater stiffness thus nullifying the effect of aggregate interlocking in shear transfer.

Numerical and experimental simulation of dowel action across reinforced concrete (RC) cracks under two-directional loading

2018 ◽  
Vol 45 (8) ◽  
pp. 634-646
Author(s):  
Ali Reza Moradi
Keyword(s):  
Reinforced Concrete ◽  
Precast Concrete ◽  
Stress Transfer ◽  
Experimental Results ◽  
Experimental Simulation ◽  
Shear Transfer ◽  
Dowel Action ◽  
Dependent Behavior ◽  
Path Dependent ◽  
Transfer Mechanisms

The local and global behavior of reinforced concrete (RC) members and structures may be affected by cracks and the capabilities of stress transfer mechanisms. Dowel action is one of the shear transfer mechanisms across RC cracks and particularly is the only mechanism in pre-formed joints that are common in precast concrete connections. Herein, the path-dependent behavior of dowel action mechanism is examined experimentally and analytically. Firstly, the effect of loading history and direction on the shear transfer capabilities of crossing bars are investigated experimentally. Then, according to the experimental results and observations, a model is extended to simulate and capture the directional path-dependent behavior of dowel action by introducing consistent formulas for subgrade springs based on the beam on the elastic foundation analogy. Verification is carried out by comparing with the corresponding experimental results and shows the fair accuracy of the proposed model and assumptions.

Sign in / Sign up

Export Citation Format

Share Document