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An experimental investigation of the effects of initial prestressing upon a three-span continuous beam with a concordant cable profileStahl, Louis Henry 05 1900 (has links)
No description available.
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Determination of axial load and support stiffness of continuous beams by vibration analysis /Boggs, Thomas P., January 1994 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1994. / Vita. Abstract. Includes bibliographical references (leaves 102-103). Also available via the Internet.
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The deformation method of analysis applied to continuous haunched bridgesDutt, Om. January 1961 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1961. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaf 92).
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A study of over-reinforced concrete continuous beams subjected to uniform loads /Bapat, Chandrashekhar Narayan. January 1982 (has links)
No description available.
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A study of over-reinforced concrete continuous beams subjected to uniform loads /Bapat, Chandrashekhar Narayan. January 1982 (has links)
No description available.
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Lateral stability of continuous glulam beamsEverest, Edwin Albert January 1968 (has links)
This thesis presents the results of a theoretical and experimental study of the lateral buckling of straight beams of rectangular cross-section resting on columns, a type of structure commonly found in the roofing system of multi-bayed buildings. The structure is analyzed as a simply supported beam, uniformly loaded, restrained at one end against longitudinal torsion and resting near the other end on a flexible column which may provide various torsional and lateral restraints. Beyond the column is a cantilevered projection of various lengths and loads. The entire top edge of the beam is considered as fastened to a continuous decking which restrains it against horizontal displacement but permits free rotation about this edge.
The method of solution of the theoretical lateral buckling load is by using a computer program to calculate the structure stiffness matrix's determinant at increasing load levels, and a plot of the determinant versus load level yields the critical load (at determinant equals zero). This theoretical approach is verified by model experiments in the laboratory.
Design curves and equations are produced incorporating the usual flexural beam and axially loaded column strength concepts, with lateral buckling considerations. Recommended design code procedures are forwarded based on these curves which would permit more economical use of deep beams.
Included in the thesis is the computer program listing used in the solution technique. / Applied Science, Faculty of / Civil Engineering, Department of / Graduate
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Static load testing of a damaged, continuous prestressed concrete bridgeFason, William Ernest. Barnes, Robert W., January 2009 (has links)
Thesis--Auburn University, 2009. / Abstract. Includes bibliographical references (p. 142-143).
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Determination of axial load and support stiffness of continuous beams by vibration analysisBoggs, Thomas P. 10 November 2009 (has links)
Three models are presented which predict frequencies and mode shapes of transverse vibration for a continuous prismatic Bernoulli-Euler beam on elastic supports, subjected to a compressive axial load. The first model, which approximates support stiffnesses by an equivalent elastic foundation, is found to be inaccurate for wave lengths close to the support spacing. A discrete mass model is formulated which accounts for axial load by stability functions which modify the element stiffness matrices. A continuous model is formulated which yields an exact solution for Bernoulli-Euler beam theory. The frequencies predicted by the discrete mass model and continuous model are in excellent agreement. A method of predicting axial compressive load and support stiffness based on measured frequency and phase data is presented which can be used for either the discrete mass model or the continuous model. A frequency reduction factor is derived which accounts for the effects of shear deformation and rotatory inertia. Tests are performed on an eight span beam with compressive axial load. Test results show that the models accurately predict frequencies and mode shapes of vibration. Results indicate that the method formulated can be used to determine compressive axial load and support stiffness. / Master of Science
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