Download or read book Static and Dynamic Response of a Model Curved Girder Bridge written by Ramendra Sundar Ghosh and published by . This book was released on 1972 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamic Analysis and Testing of a Curved Girder Bridge written by Matthew R. Tilley and published by . This book was released on 2006 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a result of increasing highway construction and expansion, a corresponding need to increase traffic capacity in heavily populated areas, and ever-increasing constraints on available land for transportation use, there has been an increasing demand for alignment geometries and bridge configurations that result in more efficient use of available space. As a result of this demand, there has been a steady increase in the use of curved girder bridges over the past 30 years. Despites extensive research relating to the behavior of these types of structures, a thorough understanding of curved girder bridge response, especially relating to dynamic behavior, is still incomplete. To develop an improved, rational set of design guidelines, the Federal Highway Administration (FHWA) initiated the Curved Steel Bridge Research Project in 1992. As part of this project, FHWA constructed a full-scale model of a curved steel girder bridge at its Turner-Fairbank Structures Laboratory. This full-scale model made it possible to conduct numerous tests and collect a significant amount of data relating to the static behavior of a curved girder bridge. However, relatively little information has been available on the dynamic response of curved girder bridges and this type of information is needed before a complete design specification can be developed. The objective of this study was to develop a finite element model using SAP2000 that could be used for predicting and evaluating the dynamic response of a curved girder bridge. Models of the FHWA curved girder bridge were developed using both beam and shell elements and response information compared with experimental data and with analytical data from other finite element codes. The experimental data were obtained during dynamic testing of the full-scale bridge in the Turner-Fairbank Structures Laboratory and analytical response information was provided from finite element models of the bridge using ANSYS and ABAQUS. The primary focus of the study was the prediction of frequencies and mode shapes of the full-scale curved girder both with and without a deck. Both experimental and analytical frequencies and mode shapes were calculated and compared. Although the more refined ANSYS and ABAQUS models provided response data that compared more favorably with the experimental data, the SAP2000 models were found to be more than adequate for predicting the lower modes and frequencies of the bridge.

Download or read book Dynamic and Static Analyses of Continuous Curved Composite Multiple box Girder Bridges written by Magdy Said Samaan and published by . This book was released on 2004 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Efficient Modelling Technique for Static and Dynamic Response of Thin walled Box Girder Bridges written by Kiana Kashefi and published by . This book was released on 2015 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Highway bridges are crucial parts of the civil infrastructure which require special attention at the time of their analysis and design. Box girder deck systems are amongst the most popular types of highway bridge structures and the understanding of their behaviour under different loads plays an important role in their structural design. Therefore, an accurate assessment of the response of these bridges under these loads is of great importance. Box girder bridges are essentially thin-walled beams having closed or a combination of closed and open cross-sections. The behaviour of these thin-walled structures under an arbitrary loading scenario is quite complex, primarily due to the cross-sectional warping (out-of-plane warping) and the distortion of the sections (in-plane warping). The accurate calculation of warping displacements has been the area of many research studies because the variation of warping displacements over a cross-section does not follow a standard pattern. With the help of a detailed Finite Element Analysis (FEA), it is possible to obtain results which may be reasonably close to the exact three dimensional (3D) elasticity solutions of these thin-walled structures. However, this approach involves significant computational resources and efforts, especially for bridges having complex geometries. The use of this modelling approach is not feasible, particularly at the preliminary design stage when the analysis is typically performed many times and the design is being modified and improved iteratively. On the other hand, a specific feature of typical box girders is that one of its dimensions (length) is very large compared to the other two dimensions. Utilising this trait, many researchers have tried to condense the 3D problem into a one-dimensional (1D) problem and treat these structures as beams. Although this approach makes the analysis highly efficient, the existing beam theories involve many approximations in order to account for out-of-plane warping and distortion of these structures. This can affect the accuracy of the solution significantly for thin-walled box girder bridges. In the present thesis, a novel method is introduced which can offer a very accurate solution to the problem and at the same time the method is computationally efficent. The proposed technique splits the 3D elasticity problem into a two-dimensional (2D) cross-sectional problem and a 1D beam problem. The 2D beam cross-sectional problem is solved using a 2D finite element discretization where the effects of in-plane warping as well as out-of-plane warping are considered. The 2D finite element analysis generates the 'exact' constitutive matrix (or stiffness matrix) for the beam cross-section which ensures proper coupling between the different modes of deformation. This cross-sectional stiffness matrix is then used in the 1D beam analysis based on a usual 1D beam finite element model. The stress resultants obtained from the 1D beam analysis and the results obtained from the 2D cross-sectional analysis are used to determine the warping displacements and finally recover the 3D stress and displacement fields of the thin-walled beams. The computational efficiency of this approach is significant in terms of prediction of the 3D response of these structures. In order to implement the method, computer programs were developed in FORTRAN specifically for the present purpose. The major research contributions of the current study are presented in the form of three journal papers and one conference paper. Firstly, the mathematical formulation of the method is presented in details and its accuracy is examined by the analysis thin-walled girders having different cross-section configurations under various loading conditions. The results are then validated against those obtained by 3D FE models of these structures. In the second paper, the method is extended to dynamic analysis of box girder superstructures. Numerical examples of thin-walled box girders are solved by the proposed approach under dynamic loading (e.g. time varying and moving loads) to show its performance. The free vibration analyses of these structures are also carried out and the results are compared with the results obtained by 3D finite element analyses of these structures. Finally, the behaviour of straight and curved thin-walled box girders is investigated through experimental studies. Detailed 3D finite-element analysis of these girders is carried out and the results are compared with the experimental results. Also, the experimental results obtained for the straight specimen are used to validate the proposed analysis approach. Additionally, the vibration frequencies of the specimens are measured using the data obtained from their impact excitations. The results obtained from the proposed method are found to have a very good correlation with the 3D FEM in all investigations. Considering the level of accuracy and efficiency required for the analysis of bridge super-structures, the proposed modelling approach seems to have a very good potential in its application for different problems. It is expected that this research will initiate further developments of this technique for its extension in the analysis of wide variety of bridge configurations (e.g. curved, composite) and for solving various problems (e.g. geometrical nonlinearity)." -- abstract, leaves i-ii.

Download or read book Static and Dynamic Analysis of Curved Box Girder Bridges written by Chang-huan Kou and published by . This book was released on 1989 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Static and Dynamic Analysis of Curved Continuous Box Girder Bridges written by Chang-huan Kou and published by . This book was released on 1989 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Static and Dynamic Analysis of Horizontally Curved Box Girder Bridges written by Rahmat Ollah Rabizadeh and published by . This book was released on 1979 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Static and Dynamic Testing of a Curved Steel Girder Bridge in Salt Lake City Utah written by Kevin C. Womack and published by . This book was released on 2001 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamic Response of Curved Box Girder Bridges written by Jeevanandam Senthilvasan and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamic Response of a Model Cantilever Bridge to Moving Loads written by Joseph David Eisenberg and published by . This book was released on 1961 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Theory and Design of Bridges written by Petros P. Xanthakos and published by John Wiley & Sons. This book was released on 1994 with total page 1466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indeed, this essential working reference for practicing civil engineers uniquely reflects today's gradual transition from allowable stress design to Load and Resistance Factor Design by presenting LRFD specifications - developed from research requested by AASH-TO and initiated by the NCHRP - which spell out new provisions in areas ranging from load models and load factors to bridge substructure elements and foundations.

Download or read book Dynamic Response of a Horizontally Curved Bridge Subjected to Simulated Highway Loadings written by Chen-Pang Tan and published by . This book was released on 1966 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by TPRC at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemina tion phases of the activity was transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we have concluded that it will be in the interest of all concerned if the printing and distribution of the volume were handled by a well-known publishing house to assure improved service and better communication. Hence, effective with this Volume 18, Masters Theses in the Pure and Applied Sciences will be disseminated on a worldwide basis by Plenum Publishing Corporation of New York. All back issues can also be ordered from Plenum. As we embark on this new partnership with Plenum, we also initiate a new venture in that this important annual reference work now covers Canadian universities as well as those in the United States. We are sure that this broader base will greatly enhance the value of these volumes.

Download or read book Dynamic Response of Cantilever Bridges to Moving Forces written by Teoktistos Yorgi Toridis and published by . This book was released on 1961 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Static and Dynamic Responses of Horizontally Curved Bridges written by Ying Liu and published by . This book was released on 2000 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Frontiers of Civil Engineering and Disaster Prevention and Control Volume 1 written by Yang Yang and published by CRC Press. This book was released on 2023-01-16 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frontiers of Civil Engineering and Disaster Prevention and Control is a compilation of selected papers from The 3rd International Conference on Civil, Architecture and Disaster Prevention and Control (CADPC 2022) and focuses on the research of architecture and disaster prevention in civil engineering. The proceedings features the most cutting-edge research directions and achievements related to construction technology and prevention and control of disaster. Subjects in this proceedings include: Construction Technology Seismicity in Civil Engineering High-Rise Building Construction Disaster Preparedness and Risk Reduction Smart Post-Disaster Rescue These proceedings will promote development of civil engineering and risk reduction, resource sharing, flexibility and high efficiency. Moreover, promote scientific information interchange between scholars from the top universities, research centers and high-tech enterprises working all around the world.

Download or read book Development of LRFD Specifications for Horizontally Curved Steel Girder Bridges written by J. M. Kulicki and published by Transportation Research Board. This book was released on 2006 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains the findings of research performed to develop design specifications for horizontally curved steel girder bridges.