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Evaluation of Damage and <i>P</i>-Δ Effects for Systems Under Earthquake Excitation
Publisher: American Society of Civil Engineers
Abstract: The analysis of a degrading dynamic system is presented, and the damage-dependent response characteristics of the model structure are explored. Results from this study show that seismically induced
Ultimate Behavior of Stud Connections within Haunches
Publisher: American Society of Civil Engineers
Abstract: Mechanical fasteners are used in composite structures to physically connect steel and concrete components. Composite action is developed primarily by transferring horizontal shear forces through dowel-type connections. ...
Risk Management and Design of Critical Bridges for Terrorist Attacks
Publisher: American Society of Civil Engineers
Abstract: In the aftermath of the September 11th tragedies, the vulnerability of the United States' transportation infrastructure to terrorist attack has gained national attention. In light of this vulnerability, various governmental ...
Evaluation of Top Flange Bracing Systems for Curved Box Girders
Publisher: American Society of Civil Engineers
Abstract: In recent years, steel trapezoidal box girders for curved highway interchanges have become popular. For these bridge systems, significant steel girder cross-sectional stresses occur during the concrete casting sequence. ...
Procedure for Predicting Blast Loads Acting on Bridge Columns
Publisher: American Society of Civil Engineers
Abstract: Historical data show that terrorist attacks against transportation assets have increased in recent years and that the vast majority of these attacks have been bombings. As such, there is growing interest in protecting ...
Nonlinear Dynamics of a Harmonically-Excited Inelastic Inverted Pendulum
Publisher: American Society of Civil Engineers
Abstract: Issues of dynamic stability for a single-degree-of-freedom system subjected to a time-varying axial load are presented. The linearized differential equation of motion for the model structure is given by the well-known ...
Investigation of the Damage-Dependent Response of Mooring Ropes
Publisher: American Society of Civil Engineers
Abstract: The focus of this paper is on the development of an analytical damage model for predicting the deterioration of the mechanical properties of polyester (PET) ropes subjected to static tension loading. Experimental data on ...
Response of Reinforced Concrete Bridge Columns Subjected to Blast Loads
Publisher: American Society of Civil Engineers
Abstract: The vast majority of past research on blast-resistant structural design focuses on buildings, with limited attention directed specifically towards bridges. Although many of the same principles apply, bridges pose unique ...
Numerical Simulation of Damage Localization in Polyester Mooring Ropes
Publisher: American Society of Civil Engineers
Abstract: This paper presents the derivation of a mechanical model to estimate the effects of damage on the response of ropes. Damage can be represented through a degradation of the properties of individual rope elements, and it can ...
Static Equivalency in Progressive Collapse Alternate Path Analysis: Reducing Conservatism while Retaining Structural Integrity
Publisher: American Society of Civil Engineers
Abstract: The existing General Services Administration (GSA) and Department of Defense Unified Facilities Criteria (UFC) guidelines make use of the alternate path approach for evaluation of a structural system to determine susceptibility ...