نتایج جستجو برای: cracked bars and beams

تعداد نتایج: 16839143  

Journal: :JES. Journal of engineering sciences 2021

This study presents experimental and numerical investigations to understand the response failure of hybrid RC continuous T-beams reinforced in flexure by both Carbon Fiber Reinforced Polymer (CFRP) bars steel at sagging hogging regions. Three were constructed experimentally studied discuss three parameters which are type reinforcement material, relation between reinforcement, moment redistribut...

Journal: :Buildings 2023

Openings in the shear span can significantly affect structural behavior of reinforced concrete (RC) beams, particularly terms capacity and crack propagation. This paper aims to investigate feasibility strengthening web opening zone RC beams by using iron-based shape memory alloy (Fe-SMA) bars, providing valuable insights for engineers researchers. Numerical analysis with ABAQUS/CAE 2020 softwar...

This study introduces the free vibration analysis of multilayered symmetric sandwich Timoshenko beams, made of functionally graded materials with two edge cracked, using the finite element method and linear elastic fracture mechanic theory. The FG beam consists of 50 layers, located symmetrically to the neutral plane, whose material properties distribution change along the beam thickness, accor...

Journal: :ce/papers 2023

For concrete deck of large steel-concrete composite road bridges cracking occurs due to tension because negative bending moments at the support area, same time traffic load with high wheel loads passes spanning between transverse beams. They induce cyclic shear loading in cracked deck. In application prefabricated elements has led economical designs a benefit construction time. this case, are s...

Ebrahimzadeh, H. , Farhangi, H. ,

The non-continuous laser beam in pulsed lasers allows the mechanical peening between two consecutive beams on a still hot weld bead. At a very short time (20, 150 and 300 ms) after laser pulse application, mechanical peening was performed on the welding bead. To achieve these short times, the light sensor detects the nth laser pulse and the mechanical arm starts moving. Upon reaching the tip of...

A Rahmani A.R Shahani, G Rezazadeh

In the present work the pull-in voltage of a micro cracked cantilever beam subjected to nonlinear electrostatic pressure was studied. Two mathematical models were employed for modeling the problem: a lumped mass model and a classical beam model. The effect of crack in the lumped mass model is the reduction of the effective stiffness of the beam and in the beam model; the crack is modeled as a m...

Journal: :Advances in Bridge Engineering 2021

Abstract Combination of carbon fiber reinforced polymer (CFRP) tendon and concrete encased steel composite (RCESC) beam can improve the workability energy dissipation capacity members. In this paper, three RCESC beams with bars or CFRP were designed fabricated to study bond-slip behavior between I-shaped damage states interfaces beams. The lead zirconate titanate (PZT) patch as stress wave actu...

2017
Li Song Jian Hou

This paper presents a fatigue assessment model that was developed for corroded reinforced concrete (RC) beams strengthened using prestressed carbon fiber-reinforced polymer (CFRP) sheets. The proposed model considers the fatigue properties of the constituent materials as well as the section equilibrium. The model provides a rational approach that can be used to explicitly assess the failure mod...

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