Journal of engineering mechanics, Vol. 139 N° 3. Journal of engineering mechanics - Mars 2013
| Titre : | Journal of engineering mechanics, Vol. 139 N° 3. Journal of engineering mechanics - Mars 2013 |
| Type de document : | Bulletin |
| Paru le : | 10/09/2013 |
Dépouillements
Article : texte imprimé
David Hurley, Auteur ;
Dryver Huston, Auteur
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Propagating solid elastic waves forms the basis of multiple nondestructive evaluation (NDE) and structural health monitoring techniques. The majority require direct sensor contact with the material or structure being tested. Conventional NDE met[...]
Article : texte imprimé
Noncontact inspection method to determine the transfer length in pretensioned concrete railroad ties
Weixin Zhao, Auteur ;
Robert L. Murphy, Auteur ;
Robert J. Peterman, Auteur
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The traditional experimental method to determine the transfer length in pretensioned concrete members consists of measuring concrete surface strains before and after detensioning with a mechanical strain gauge. This method is prone to significan[...]
Article : texte imprimé
Vitaliy V. Saykin, Auteur ;
Yiying Zhang, Auteur ;
Yinghong Cao, Auteur
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A road is considered safe when it provides adequate friction between the tire and pavement surface interaction to avoid accidents. The current manual methods of evaluating surface friction of roads are not only dangerous for the inspectors and m[...]
Article : texte imprimé
Xianlei Xu, Auteur ;
Tian Xia, Auteur ;
Anbu Venkatachalam, Auteur
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This paper describes the development of new air-coupled ultrawideband ground-penetrating radar (GPR) for highway pavement and bridge deck inspections that can achieve high spatial resolution and high inspection performance while operating on veh[...]
Article : texte imprimé
David Hurley, Auteur ;
David Huston, Auteur ;
Douglas Fletcher, Auteur
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This paper presents the results of studies assessing waveguided acoustic emission techniques for remotely sensing the condition of structures operating in extreme environments. A particularly acute challenge to sensing in extreme conditions is t[...]
Article : texte imprimé
Ahmed H. Al-Rahmani, Auteur ;
Hayder A. Rasheed, Auteur ;
Yacoub Najjar, Auteur
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This study is intended to facilitate damage detection in concrete bridge girders without the need for visual inspection while minimizing field measurements. Beams with different material and cracking parameters were modeled using ABAQUS finite-e[...]
Article : texte imprimé
Taekeun Oh, Auteur ;
Seong-Hoon Kee, Auteur ;
Ralf W. Arndt, Auteur
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The field application of three different nondestructive tests (NDTs)—air-coupled impact echo (IE), infrared (IR) thermography, and sounding (chain drag)—are evaluated in this paper, where an actual in-service concrete bridge deck is tested. Two [...]
Article : texte imprimé
Chelakara Subramanian, Auteur ;
Jean-Paul Pinelli, Auteur ;
Ivica Kostanic, Auteur
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To understand and model the effects of natural hurricane winds on residential buildings, full-scale field testing and analysis are needed. Toward this goal, a group of researchers at Florida Tech, in collaboration with the Florida Coastal Monito[...]
Article : texte imprimé
The wind loads including forces and moments on bridge decks are evaluated in the current study using the velocity fields and their derivatives. Based on the conservation of momentum and momentum moment, the integral over the control volume is co[...]
Article : texte imprimé
Suren Chen, Auteur ;
Ryan Nelson, Auteur ;
Feng Chen, Auteur
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For a slender long-span bridge, the global aeroelastic and aerodynamic phenomena, such as flutter stability and buffeting response, induced by wind turbulence significantly affect the safety and lifetime performance of the bridge. To investigate[...]
Article : texte imprimé
Bochao Cao, Auteur ;
Partha P. Sarkar, Auteur
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Flexible bridges could experience vortex-induced and buffeting excitations below their design wind speeds and divergent self-excited oscillations (flutter) beyond a critical wind speed. For regular straight-line winds that are stationary or weak[...]
Article : texte imprimé
DongHun Yeo, Auteur ;
Arindam Gan Chowdhury, Auteur
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The reliable measurement of pressures on low-rise buildings in the atmospheric boundary layer (ABL) flow remains a challenge, as has been shown by the large discrepancies among results obtained in different wind tunnel facilities or even in the [...]
Article : texte imprimé
Based on previous studies, it has been determined that internal pressures can contribute as much (or more) as the external pressures to the net pressures occasioned for low-rise buildings with a single dominant opening. However, the role of inte[...]
Article : texte imprimé
Girma T. Bitsuamlak, Auteur ;
Workamaw Warsido, Auteur ;
Edward Ledesma, Auteur
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This paper presents the use of simple architectural elements such as aerodynamic mitigation devices for reducing high wind-induced suctions occurring at roof and wall corners of low-rise buildings where wind-induced building envelope failures us[...]
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