Download or read book Elastomeric Bearings Design Construction and Materials written by and published by . This book was released on 1964 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High load Multi rotational Bridge Bearings written by John F. Stanton and published by Transportation Research Board. This book was released on 1999 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long term Performance of Elastomeric Bridge Bearings written by Michael E. Doody and published by . This book was released on 1998 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elastomeric Bridge Bearings written by J. A. Yura and published by . This book was released on 2001 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rotation Limits for Elastomeric Bearings written by National Cooperative Highway Research Program and published by Transportation Research Board. This book was released on 2008 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Download or read book Instrumented Elastomeric Bridge Bearings written by Douglas K. Nims and published by . This book was released on 2000 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of tests and analyses performed on elastomeric bridge bearings. The focus of this research was the measurement of bearing deformations in the field and assessment of the feasibility of using instrumented elastomeric bearings to monitor bridge condition. The bearing deformations were successful measured in the field during the deck concrete pour and a static truck test. Shear, compression, rotation, and fatigue tests have been carried out in the laboratory and at the manufacturer's facility. Full scale bearings (shape factor 11) were tested at the manufacturer and installed in the field. Model bearings (shape factor 11 and one-quarter the plan area of the full scale bearings) were tested at the manufacturer and in the laboratory. Test bearings (shape factors 5,7, and 10) were tested in the laboratory. The bearing material was 50 Durometer neoprene. The analyses support the testing and considered the bridge-bearing system. The stiffnesses of the bearings are explicitly included in the analyses. A singular characteristic of this experimental research is the focus on the in-service behavior of the bearings.
Download or read book An Experimental Study of Elastomeric Bridge Bearings with Design Recommendations written by Joseph Vincent Muscarella and published by . This book was released on 1995 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to analyze elastomeric bearing performance on the basis of elastomer hardness, shape factor, reinforcing shim orientation, degree of taper and compressive stress level with the goal of developing a simple design procedure which standardizes as many of those parameters as possible. Particular emphasis was placed on comparing the behavior of flat and tapered bearings. Experimentation included shear, compressive, and rotational stiffness tests, shear and compression fatigue loading, long-term compressive loading, and tests to determine compressive stress limits.
Download or read book Bridge Bearings and Expansion Joints Second Edition written by D J Lee and published by CRC Press. This book was released on 1994-11-03 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a guide to movement and restraint in bridges for bridge engineers and will enable them to draw up design calculations and specifications for effective installation, and satisfactory service and durability of bearings and joints. It has been fully revised and updated in line with current codes and design practice, modern developments and products.
Download or read book Removal and Testing of Elastomeric Bridge Bearings written by A. R. Price and published by . This book was released on 1983 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Bearings and Expansion Joints for Bridges written by Günter Ramberger and published by IABSE. This book was released on 2002 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation Tests of Elastomeric Bridge Bearings written by Charles A. Maguire and Associates and published by . This book was released on 1958 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Temperature Behavior and Acceptance Criteria for Elastomeric Bridge Bearings written by Charles W. Roeder and published by Transportation Research Board National Research. This book was released on 1989 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Material Study of the Steel Reinforced Elastomeric Bridge Bearings written by Cong Sun (Ph. D.) and published by . This book was released on 2015 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steel laminated elastomeric bearings are widely used in concrete bridges due to their low cost and long history of good structural performance. However, elastomeric bearings have not been used extensively in steel bridge systems. Compared to concrete bridges, steel bridge systems generally have longer spans and may have significant support skew and horizontally curved geometry that results in significant demands on the bearings at the supports to accommodate rotations and complex bridge movements from both thermal loads and daily truck traffic. For such bridges, more costly pot bearings are normally used. The research described in this dissertation was part of a larger study investigating the possibility of using elastomeric bearings in such higher demand applications. More specifically, the research in this dissertation investigated issues related to material properties of the elastomer in larger bearings designed for higher demand applications. This dissertation first introduces a new testing methodology, referred to as the Dual Shear Test (DST), which is able to measure the elastomer material response in shear for samples cut directly from of bearings with different dimensions. The proposed geometry of the DST specimen significantly reduces the cost and effort compared to the more conventional Quad Shear Test, and also allows the measurement of shear response at very large shear strain levels. Based on a systematic experimental study, the accuracy and reliability of this new testing methodology was demonstrated. Different hyper-elastic material models were investigated in this dissertation that can be used in finite element studies of elastomeric bearings. These models were calibrated based on the new shear test methodology. With these material models, DST results can be interpreted and entered into finite element models. Using the Dual Shear Test, four bearings of different dimensions were tested. The variability of the shear modulus at different locations within the bearings was investigated. These tests were conducted to address concerns that larger bearings may have greater variability in elastomer material properties throughout the bearing. These tests showed there is somewhat greater variability in shear modulus in larger bearings and thicker bearings, although this variability was not significantly larger compared to smaller bearings. Finally, this research also investigated how the shear modulus of the elastomer changes as the temperature decreases. Results of tests showed that the shear modulus increases significantly as temperature decreases. This effect can be significant when analyzing the behavior of bridge bearings under temperature variations.
Download or read book Bridges written by National Research Council (U.S.). Highway Research Board. Annual Meeting and published by . This book was released on 1960 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Elastomeric Bridge Bearings written by O. Hamzeh and published by . This book was released on 1995 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: A two-dimensional nonlinear p-version finite element method is developed for the analysis of boundary value problems relevant to elastomeric bridge bearings. The method incorporates polynomial shape functions of the hierarchic type for the modeling of large-deformations rubber elasticity. In addition, a frictional-contact algorithm based on a penalty formulation and suitable for the interaction of the pad with rigid flat surfaces is derived and implemented. The J sub 2 flow theory with isotropic hardening is utilized to model the reinforcing steel as a bilinear elastoplastic material. Examples are presented to illustrate the performance of the element and some guidelines for the selection of appropriate orders of interpolation and integration rules. The results of a study performed to examine the effects of several design parameters of the bearing are presented. Comparisons with experimental findings are shown. A dynamic lumped model for the walking of the bearing is developed. Viscous frictional interfaces with the girder and the abutment are included. Several cases are analyzed to investigate the factors that affect this phenomenon.
Download or read book Design of Seismic Isolated Structures written by Farzad Naeim and published by John Wiley & Sons. This book was released on 1999-03-25 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Um die Auswirkungen von Erdbeben auf Gebäude, Brücken und andere empfindliche Konstruktionen zu mildern, wurden im Laufe der Jahre zahlreiche Technologien entwickelt. Eine der neueren hiervon ist die seismische Isolation: Sie beinhaltet den Einbau von Mechanismen, die das Gebäude von den Bewegungen des Untergrunds entkoppeln. Der Erfolg dieser Technik übertrifft den aller vorher bekannten Verfahren - ein Grund für Ingenieure und Architekten, sich genauer zu informieren. Dazu sei dieses Buch empfohlen. (04/99)
Download or read book Steel Reinforced Elastomeric Bridge Bearings written by and published by . This book was released on 1978* with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
