Results 111 to 120 of about 5,380,195 (338)

Influence of the Boundary Conditions on the Seismic Response of Existing Masonry Infills From In‐Plane and Dynamic Out‐of‐Plane Tests

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Despite increasing attention to the seismic performance of masonry infills, their out‐of‐plane dynamic behaviour remains insufficiently explored, particularly under pre‐existing in‐plane damage. This study presents a comprehensive experimental campaign designed to investigate the seismic behaviour of an existing weak masonry infill typology ...
Maithree Kurukulasuriya, Riccardo R. Milanesi, Guido Magenes, Paolo Morandi   +3 more
wiley   +1 more source

3D velocity-depth model building using surface seismic and well data [PDF]

, 1998
The objective of this work was to develop techniques that could be used to rapidly build a three-dimensional velocity-depth model of the subsurface, using the widest possible variety of data available from conventional seismic processing and allowing for
Sexton, Paul
core  

Directionality Scaling of Scalar and Vector Ground Motion Intensity Measures

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The azimuthal directionality of earthquake ground‐motion intensity measures (IMs) is conventionally described by the ratios between the orientation‐independent maximum (RotD100) and median (RotD50) values over the horizontal plane. This study presents a refined characterization of the directionality of 31 IMs, including spectral accelerations (
Mao‐Xin Wang, Gang Wang
wiley   +1 more source

Longitudinal Seismic Response of Metro Tunnels Crossing a Fault with Multi-Slip Surfaces

Buildings
There are multiple seismic fault zones near Xi’an in China, among which the Li Piedmont Fault has multiple slip surfaces. A 3D finite element dynamic Soil–Fault–Tunnel model was established based on the engineering background of the Xi’an Metro tunnel ...
Qiyao Wang, Yawu Yang, Hongquan Teng, Yifei He   +3 more
doaj   +1 more source

Development and application of the phase-screen seismic modelling code [PDF]

, 2009
As a consequence of the aims of this project, this thesis is divided into two distinct sections. Initially, the computationally efficient phase-screen forward modelling technique is extended to allow investigation of non-normal ray paths.
White, James C.
core  

An Intensity Measure‐Based Methodology for Ground Motion Orientation in Seismic Structural Assessment

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT In current dynamic time history assessment protocols, ground motion recordings are mostly oriented along fixed sensor directions. Consequently, the orientation of the principal resultant of rupture energy, which may control the maximum structural demand, remains undefined, precluding consistent correlation with physically detrimental ...
Santiago Londono‐Lopez, Raffaele Cucuzza, Fabrizio Mollaioli, Giuseppe Carlo Marano, Marco Domaneschi   +4 more
wiley   +1 more source

Response Analysis of the High-piers and Long-span Rigid Frame Bridge Subjected to Varying Spatial Seismic Excitation

工程科学与技术, 2011
:Analysis of seismic response is very important to the seismic design of bridge. Based on theory of random vibration and response spectral method, the mean square root response of the internal forces of high-piers and long-span continuous rigid frame ...
doaj  

Current status of development in the 3D seismic isolation applied to SFRs

Mechanical Engineering Journal
A sodium-cooled fast reactor (SFR) considers adopting 3-dimensional seismic isolation devices for withstanding seismic loads not only horizontal but also vertical direction. A seismic isolation device consists of a laminated rubber bearing and horizontal
Tomohiko YAMAMOTO, Tomoyoshi WATAKABE, Masashi MIYAZAKI, Shigeki OKAMURA, Takayuki MIYAGAWA, Shinobu YOKOI, Tsuyoshi FUKASAWA, Satoshi FUJITA   +7 more
doaj   +1 more source

Development and Validation of a Seismic Design Method for Anchored Retaining Walls

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Retaining walls with multiple anchor levels are widely used as permanent excavation support systems for the construction of linear infrastructures. Yet, their seismic behaviour remains largely unexplored, and current design approaches rely on conventional procedures that do not adequately reflect the actual dynamic response of these systems ...
Luigi Callisto, Chiara Molinaro, Davide Noè Gorini   +2 more
wiley   +1 more source

Advances in crosshole seismic reflection processing [PDF]

, 1993
In recent years there have been significant advances in the acquisition and processing of crosshole seismic reflection data, and the method has been shown to be a high resolution imaging technique.
Rowbotham, Peter S
core