Results 11 to 20 of about 316,247 (300)

Influence of Temperature on the Natural Vibration Characteristics of Simply Supported Reinforced Concrete Beam

open access: yesSensors, 2021
Natural vibration characteristics serve as one of the crucial references for bridge monitoring. However, temperature-induced changes in the natural vibration characteristics of bridge structures may exceed the impact of structural damage, thus causing ...
Yanxia Cai   +5 more
doaj   +3 more sources

Dynamic characteristics of cracked simply supported bidirectional functionally graded Rayleigh beam

open access: yesResults in Materials, 2023
This paper investigates the dynamic behavior of cracked Rayleigh beams constructed from bidirectional functionally graded (BDFG) materials under simple boundary conditions. A torsional massless spring is employed to model the beam's open crack type.
Talib EH. Elaikh   +2 more
doaj   +1 more source

Amplification factor analysis of a simply supported beam under moving loads

open access: yesAdvances in Mechanical Engineering, 2022
An analytical solution for vertical vibrations of a simply supported bridge under the action of moving loads is derived and validated. The effect of bridge frequency, span length and vehicle length on the amplification factor of mid-span displacement is ...
Zenong Cheng   +4 more
doaj   +1 more source

Constant sign solution for a simply supported beam equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
The aim of this paper is to ensure the existence of constant sign solutions for the fourth order boundary value problem: \[\begin{cases} u^{(4)}(t)-p\,u''(t)+c(t)\,u(t)=h(t)(\geq 0)\,,&t\in I\equiv[a,b]\,,\\ u(a)=u''(a)=u(b)=u''(b)=0\,, \end{cases ...
Alberto Cabada, Lorena Saavedra
doaj   +1 more source

Theoretical and experimental study on vibration modal for simply supported bridge [PDF]

open access: yesE3S Web of Conferences, 2021
For the highway bridges with small or medium span, a vehicle will stay on the bridge after the excitation. So the measured values of the vibration characteristics of the bridge are related to the vehiclebridge system.
Wang Ying   +5 more
doaj   +1 more source

Nonlinear Analysis of Simply Supported Composite Steel - Concrete Beam

open access: yesDiyala Journal of Engineering Sciences, 2013
This paper presents a nonlinear finite element computer program. ANSYS version 12.0 developed for the analysis of composite steel-concrete beam. A three-dimensional finite element (FE) model has been developed in this work.
Amer M. Ibrahim, Qussay W. Ahmed
doaj   +1 more source

Continuous Concrete Beams Reinforced With CFRP Bars. [PDF]

open access: yes, 2015
yesThis paper reports the testing of three continuously and two simply supported concrete beams reinforced with carbon fibre reinforced polymer (CFRP) bars. The amount of CFRP reinforcement in beams tested was the main parameter investigated.
A. F. Ashour   +8 more
core   +1 more source

Multi-level residue harmonic balance method for nonlinear vibration of the beam

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2022
This study presents the nonlinear vibration and chaotic response of a beam subjected to harmonic excitation. The multi-level residue harmonic balance method is applied to solve the geometrically cubic nonlinear vibration of the simply supported beam. The
Abu SMZ Hasan, M S Rahman
doaj   +1 more source

Computer aided design – comparative analysis of widely available software with analytical method [PDF]

open access: yes, 2014
In this article a comparative analysis was performed between analytical method and widely available computer programs employed in beam design like: ADINA, Robot Structural Analysis, Intersoft R2D2 and RM-WIN.
Major, Izabela, Major, Maciej
core   +2 more sources

Influence of section depth on the structural behaviour of reinforced concrete continuous deep beams [PDF]

open access: yes, 2007
YesAlthough the depth of reinforced concrete deep beams is much higher than that of slender beams, extensive existing tests on deep beams have focused on simply supported beams with a scaled depth below 600 mm.
Ashour, Ashraf, Yang, Keun-Hyeok
core   +1 more source

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