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Dynamic Analysis of Three-Dimensional Frames with Material and Geometric Nonlinearities
Publisher: American Society of Civil Engineers
Abstract: The dynamic analysis of inelastic structures with geometric nonlinearities experiencing large deformations and buckling is challenging, in particular, if three-dimensional space effects are considered. This paper introduces ...
Multidimensional Performance Limit State for Hazard Fragility Functions
Publisher: American Society of Civil Engineers
Abstract: This paper addresses an alternative methodology to calculate fragility functions that considers multiple limit states parameters, such as combinations of response variables of accelerations and interstory drifts. Limit ...
Further Results on Frictional Properties of Teflon Bearings
Publisher: American Society of Civil Engineers
Abstract: Further results on the frictional properties of Teflon-steel interfaces in sliding bearings are reported. Values of the breakaway (static) and sliding coefficients of friction of woven Teflon in contact with polished ...
Study of Sliding Bearing and Helical‐Steel‐Spring Isolation System
Publisher: American Society of Civil Engineers
Abstract: A sliding isolation system consisting of Teflon disc bearings and helical steel springs is described. The springs carry no vertical load and provide bilinear restoring force without hysteresis when deformed in shear. The ...
Verification of Friction Model of Teflon Bearings under Triaxial Load
Publisher: American Society of Civil Engineers
Abstract: The writers presented in an earlier paper a mathematical model of friction of sliding bearings under conditions of compression and bidirectional motion. The model could account for the dependence of the coefficient of ...
Noniterative Optimization Procedure for Seismic Weakening and Damping of Inelastic Structures
Publisher: American Society of Civil Engineers
Abstract: Previous research has shown that weakening of inelastic structures can limit the maximum response accelerations they experience during ground motions, but may lead to an increase in the displacements (or interstory drifts). ...
Modal Predictive Control of Structures. II: Implementation
Publisher: American Society of Civil Engineers
Abstract: This paper is continuation of a companion paper in which a numerical assessment about the efficiency and the robustness of predictive control of structures was performed on single‐degree‐of‐freedom systems. In this paper ...
Modal Predictive Control of Structures. I: Formulation
Publisher: American Society of Civil Engineers
Abstract: In this and a companion paper, a methodology for implementation of modal predictive control of structures is described. Predictive control is formulated, within an independent modal space control (IMSC) approach, for the ...
Experiments on Active Control of Seismic Structures
Publisher: American Society of Civil Engineers
Abstract: This paper presents the first phase of a comprehensive experimental study concerning the possible application of active control to structures under seismic excitations. In the laboratory, a single‐degree‐of‐freedom model ...
Development of Design Spectra for Actively Controlled Wall‐Frame Buildings
Publisher: American Society of Civil Engineers
Abstract: Preliminary design of a structure controlled by active bracing or mass dampers to withstand seismic motion or high winds requires rapid means of analysis and estimates. A response spectrum technique applied to simplified ...
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