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Showing 1 to 20 of 137 for “"Seismic response"”.
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Nonlinear Seismic Response of Asymmetric Structures
… of the experimental results on the adequacy of seismic design provisions are discussed. In addition, the ability of analytical software to predict inelastic torsional response is discussed for both a model tuned to the measured dynamic properties of the actual structure and a model based on …
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Seismic Response of Light Attachments to Buildings
… method is proposed to compute the maximum response of light secondary systems attached to buildings subjected to earthquakes. The method is derived by considering that a secondary system and its supporting primary structure form a single assembled system, and by applying a modified version …
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Seismic Response and Liquefaction of Saturated Sands
… to study the liquefaction potential and seismic response of saturated sands. Method treats the saturated granular soil system as a two-phase nonlinear medium with constituent materials being the granular solid skeleton and the pore water. An elasto-plastic stress-strain rule is developed …
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Seismic response of structures with Coulomb damping
… design of structures is examined by studying the seismic response characteristics of structures with various arrangements of sliding interfaces. First, three basic arrangements are studied for their effectiveness in reducing lateral displacements of the supporting frame, accelerations of the floor …
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Modeling the Seismic Response of Short Bridge Overcrossings
Conventional elastomeric bearings are primarily used in the Midwest for accommodating temperature movements, yet can play a significant role in reducing column displacement demands in earthquakes. Nonlinear models for Illinois Type I, II and III elastomeric bearings are developed. The effectiveness …
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Dynamic stiffness and seismic response of pile groups
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1982.
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Seismic Response of Structures with Added Viscoelastic Dampers
… devices have been implemented in practice as the seismic protective systems to mitigate structural damage caused by earthquakes. The solid viscoelastic dampers are among such passive energy dissipation systems. To examine the response reducing effectiveness of these dampers, it is necessary that …
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Seismic response analysis of multiply connected secondary systems
An analytical formulation for seismic analysis of multiply supported secondary systems is developed. The formulation is based on the random vibration theory of structural systems subjected to correlated inputs at several points. The response of the secondary systems is expressed as a combination of …
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Viscous Dampers for Optimal Reduction in Seismic Response
… optimal utilization of such Maxwell dampers for seismic performance improvement of civil structures. The force deformation relationship of Maxwell dampers is described by a first order differential equation. Earlier studies dealing with these dampers, used an unsymmetric set of equations for …
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Bilinear and Degrading Bilinear Seismic Response of Multistory Frames
Made available in DSpace on 2014-12-10T22:21:49Z (GMT). No. of bitstreams: 1 7219853.pdf: 9140643 bytes, checksum: a9c2d8030c8e045121a274e4684c67c3 (MD5) Previous issue date: 1972
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Design of innovative dynamic systems for seismic response mitigation
… their strong plane. Their purpose is to mitigate seismic structural response by constraining a building primarily to a linear fundamental mode. This constraint prevents mid-story failure, and maximizes energy dissipation by activating the maximum number of plastic hinges throughout the structure. …
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Seismic response of wharf structures supported in liquefiable soil
… that are susceptible to liquefaction during seismic events and considers the effectiveness of pre-fabricated Vertical (PV) drain systems in mitigating potential damage. The analyses are based on non-linear finite element simulations using the OpenSees open-source software framework. The …
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Seismic response of adjacent structures on dry and saturated sand
… box filled with sand are presented. Finally, the response of adjacent structures on saturated sandy soil is addressed using a geotechnical centrifuge and a large 1g shake table. This research shows that the acceleration, lateral displacement, foundation rocking, damping ratio, and fundamental …
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Seismic Response of a Linear Bedrock-Soil-Structure Interaction System
Made available in DSpace on 2015-05-12T22:37:15Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7309860.PDF: 5119937 bytes, checksum: 6b5b47ca752aa89c895b85b39578ca70 (MD5) Previous issue date: 1972
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Inelastic Seismic Response Of Reinforced Concrete Buildings With Floor Diaphragm Openings
… in considerable errors when predicting the seismic response of reinforced concrete buildings with diaphragm plan aspect ratio of 3:1 or greater. However, the influence of floor diaphragm openings: typically for the purpose of stairways, shafts, or other architectural features) has not been …
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Post-seismic response and repair of earthquake-damaged reinforced concrete bridges
… While many studies have been conducted on seismic strengthening of RC bridge columns, most are focused on retrofit instead of repair. In addition, the limited research on seismic repair of RC bridges has focused on evaluating the response of individual columns (member level), not the bridge …
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Seismic Response of Pile Foundations in Soft Clays and Layered Soils
… significant stiffness contrast and the dynamic response of pile foundations embedded in these soil types. The first series of centrifuge experiments were focused on studying the dynamic response of floating piles in soft clay, which in turn depends on the dynamic behaviour of the soft clay layer …
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Seismic Response of Low -Rise Shear Wall Structures With Flexible Diaphragms
… analysis (PCA) of computed inelastic dynamic responses. The method can consider variations in the design response spectrum and gives reasonably good estimates for use for preliminary design of the structure. (Abstract shortened by UMI.).
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Seismic Response and Analytical Fragility Functions for Curved Concrete Box-Girder Bridges
… from their straight counterparts since the response coupling in the longitudinal and transverse directions and rotation of the superstructure may lead to significantly different seismic response. Observations from past earthquakes highlighted the seismic vulnerability of these bridges due to …
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