Hence it applies to both under-reinforced and over-reinforced membranes, and to normal and high strength concrete.doi:10.1016/j.engstruct.2009.09.008Khaldoun N. RahalElsevier LtdEngineering StructuresRahal KN. Post-cracking shear modulus of reinforced concrete membrane elements. Engineering Structures, ...
According to this formula, the shear stiffness of studs is affected by the stud diameter, compressive strength and elastic modulus of HSC. In addition, a formula to predict the shear strength of a stud embedded in HSC considering both the interaction between stud and concrete and the enhancement...
The measured compressive strength of the concrete is in the range of 70–100 MPa. The main variable considered in the study is the shear-span to depth ratio. Based on the experimental data that include maximum shear crack width, residual shear crack width, angle of the main crack and shear...
P. Hibbert, 'Comparison of Shear Modulus and Pulse Velocity Techniques to Measure the Built-up of Structure in Fresh Cement Pastes used in Oil Well ... J.,Keating,and,... - 《Cement & Concrete Research》 被引量: 83发表: 1989年
Y and Z are model parameters. The above equation can reflect the nonlinear full process curve of stress–strain of compressed concrete properly. The model parameters of X, Y and Z are determined by five material parameters: concrete initial modulus\({E}_{u}\), concrete peak compressive streng...
Young’s modulus of blank calcium alginate is reported to be in the range of 0.5–5.0 N/mm2 [16]. With the increase in the capsules content in the sand, a greater number of interactions between the sand grains and capsules were expected. The interaction with the low-stiffness particles of...
From the test-to-predicted ratio analysis, the important effect of modulus of elasticity of the reinforcement for predicting formulas was found. As using the resulted formula, this study provides a preliminary approach for suggesting a new punching shear formula of concrete slabs reinforced by either...
Distinguished from PE, PP, and PVA fibers, steel fibers possess the advantages of high elastic modulus and toughness5,6. This allows steel fibers to effectively ameliorate early-age cracking issues in concrete, enhancing its flexural strength, impact resistance, and residual strength7,8,9. Addition...
where b is the width of cross section (mm), Ece the secant modulus of concrete (MPa), Ewe the secant modulus of steel shear reinforcement (MPa), Efe the secant modulus of fiber reinforcement (MPa), s is the spacing of steel shear reinforcement (mm), tf the thickness of fiber reinforcem...
Square plate torsion and beam bending methods at dynamic and static states were used to measure shear modulus of five-layer lauan plywood. The method was proved to be valid by finite element method [4]. To determine Young’s and shear modulus of concrete materials at a high temperature, ...