Influence of design parameters on seismic response of post-tensioned steel MRF systems

2008 ◽  
Vol 30 (4) ◽  
pp. 1037-1047 ◽  
Author(s):  
Maria M. Garlock ◽  
James M. Ricles ◽  
Richard Sause
Keyword(s):  
Seismic Response ◽  
Design Parameters ◽  
Steel Mrf ◽  
Post Tensioned

scholarly journals Multi-angle and nonuniform ground motions on cable-stayed bridges

2021 ◽  
pp. 875529302110513
Author(s):  
Eleftheria Efthymiou ◽  
Alfredo Camara
Keyword(s):  
Seismic Response ◽  
Ground Motion ◽  
Seismic Waves ◽  
Incidence Angle ◽  
Design Parameters ◽  
System Configuration ◽  
Cable System ◽  
Parametric Problem ◽  
Wide Range ◽  
Cable Stayed Bridges

The definition of the spatial variability of the ground motion (SVGM) is a complex and multi-parametric problem. Its effect on the seismic response of cable-stayed bridges is important, yet not entirely understood to date. This work examines the effect of the SVGM on the seismic response of cable-stayed bridges by means of the time delay of the ground motion at different supports, the loss of coherency of the seismic waves, and the incidence angle of the seismic waves. The focus herein is the effect of the SVGM on cable-stayed bridges with various configurations in terms of their length and of design parameters such as the pylon shape and the pylon–cable system configuration. The aim of this article is to provide general conclusions that are applicable to a wide range of canonical cable-stayed bridges and to contribute to the ongoing effort to interpret and predict the effect of the SVGM in long structures. This work shows that the effect of the SVGM on the seismic response of cable-stayed bridges varies depending on the pylon shape, height, and section dimensions; on the cable-system configuration; and on the response quantity of interest. Furthermore, the earthquake incidence angle defines whether the SVGM is important to the seismic response of the cable-stayed bridges. It is also confirmed that the SVGM excites vibration modes of the bridges that do not contribute to their seismic response when identical support motion is considered.

Seismic Response of Post-Tensioned Cross-Laminated Timber Rocking Wall Buildings

2020 ◽  
Vol 146 (7) ◽  
pp. 04020123
Author(s):  
Alex W. Wilson ◽  
Christopher J. Motter ◽  
Adam R. Phillips ◽  
J. Daniel Dolan
Keyword(s):  
Seismic Response ◽  
Cross Laminated Timber ◽  
Rocking Wall ◽  
Post Tensioned

Seismic response of complex 3D steel buildings with welded and post-tensioned connections

2016 ◽  
Vol 11 (2) ◽  
pp. 217-243 ◽  
Author(s):  
Alfredo Reyes-Salazar ◽  
Sonia E. Ruiz ◽  
Eden Bojorquez ◽  
Juan Bojorquez ◽  
Mario D. Llanes-Tizoc
Keyword(s):  
Seismic Response ◽  
Steel Buildings ◽  
Post Tensioned
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