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Seismic Design of Lifeline Bridge using Hybrid Seismic Isolation
Publisher: American Society of Civil Engineers
Abstract: This paper presents the merits of a hybrid seismic isolation system used for the seismic design of a major bridge. The bridge is analyzed for two different arrangements of seismic isolation systems. The first arrangement ...
Integral Abutment-Backfill Behavior on Sand Soil—Pushover Analysis Approach
Publisher: American Society of Civil Engineers
Abstract: This paper presents a study on the behavior of the abutment-backfill system under positive thermal variation in integral bridges built on sand. A structural model of a typical integral bridge is built, considering the ...
Simplified Model for Computer-Aided Analysis of Integral Bridges
Publisher: American Society of Civil Engineers
Abstract: This paper presents a computer-aided approach for the design of integral-abutment bridges. An analysis procedure and a simplified structure model are proposed for the design of integral-abutment bridges considering their ...
Efficient Energy Dissipating Steel-Braced Frame to Resist Seismic Loads
Publisher: American Society of Civil Engineers
Abstract: In this research, the seismic performance of a proposed efficient energy dissipating steel-braced frame (EEDBF) in relation to that of a moment-resisting frame (MRF) and chevron braced frame (CBF) is studied. The frame is ...
Live Load Distribution Formulas for Single-Span Prestressed Concrete Integral Abutment Bridge Girders
Publisher: American Society of Civil Engineers
Abstract: In this study, live load distribution formulas for the girders of single-span integral abutment bridges (IABs) are developed. For this purpose, two and three dimensional finite-element models (FEMs) of several IABs are ...
Effect of Soil and Substructure Properties on Live-Load Distribution in Integral Abutment Bridges
Publisher: American Society of Civil Engineers
Abstract: This study is aimed at investigating the effect of soil–structure interaction and substructure properties at the abutments on the distribution of live-load effects in integral abutment bridge (IAB) components. For this ...
Fatigue-Based Methodology for Managing Impact of Heavy-Permit Trucks on Steel Highway Bridges
Publisher: American Society of Civil Engineers
Abstract: Currently, in many areas of North America, special permits are issued to extra heavy vehicles without a detailed evaluation of individual components, considering only the ultimate capacity of the bridge inventory as a ...
Seismic Performance of Single-Span Simply Supported and Continuous Slab-on-Girder Steel Highway Bridges
Publisher: American Society of Civil Engineers
Abstract: Seismic response of single-span simply supported and continuous slab-on-girder steel bridges is studied. Linear elastic and nonlinear inelastic analyses are conducted for various ground-acceleration inputs. Bearings with ...
Quantitative Approach to Rapid Seismic Evaluation of Slab-on-Girder Steel Highway Bridges
Publisher: American Society of Civil Engineers
Abstract: A quantitative approach follows for developing a methodology for the rapid seismic evaluation and ranking of slab-on-girder steel highway bridges. In the development of this methodology, analytical expressions are introduced ...
Physical Theory Hysteretic Model for Steel Braces
Publisher: American Society of Civil Engineers
Abstract: This paper presents a simple yet efficient physical theory model that can be used to simulate the inelastic cyclic axial force–axial deformation and axial force–transverse deformation relationships of steel braces. The ...
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