# Need for Diaphragms in Concrete Box Girders

*The action of diaphragms in single-cell concrete box girders is covered with particular reference to torsional loading. A simple analysis of the distortion of boxes is presented in which...*

Torsion, Bending, and Shear in Prestressed Concrete

*An ultimate strength interaction criterion for web reinforced, prestressed concrete beams under torsion, bending moment and flexural shear is presented. Principal variables considered...*

Analysis of Asymmetrical Coupled Shear Walls

*A method of analysis is devised for asymmetrical coupled shear wall structures. The individual shear wall piers, one story in height, are considered to be single elements in a stiffness...*

Lateral Buckling of Parabolic Arches

*Lateral buckling loads are presented for parabolic arches loaded uniformly by means of either hangers or columns. Buckling loads for arches with hangers have been previously obtained by...*

Ambient Vibration of Two Suspension Bridges

*The dynamic characteristics (i.e., normal mode natural frequencies, damping, and shapes) of two suspension bridges are estimated from experimentally measured ambient motion time histories....*

Response to Triangular Prisms in Turbulent Wind

*Aeroelastic responses of 1/400 scale model with five masses were measured in a boundary layer wind tunnel to simulate the responses of twin triangular buildings in the turbulent wind at...*

Torsional Stiffness of Embedded Footings

*Numerical values of torsional spring constants with corresponding stress and displacement distribution are obtained for circular footings for various embedment. The presence of rigid discs...*

Torsional Vibrations of Circular Foundations

*Vibrations of circular foundation about their axis of symmetry are investigated. The analytical solutions of forced torsional oscillations on an elastic homogeneous isotropic half space...*

Kelvin's Solution of Torsion Problem

*Kelvin and Tait have shown that plate-like bars of thin rectangular cross section resist an applied torque by shearing stresses in two distinct ways. One-half of the torque is carried...*

Singular Integral Equation Solution for Torsion

*For a boundary value problem in elasticity with an arbitrary shape, an integral equation solution is one of the methods for which a single digital computer program with input data defining...*

Interaction with Box Girders

*It is common practice to construct a pier-cap beam integrally with a box girder bridge. Any loading which causes flexure in the cap beam also causes twisting of the box girder. The torsion...*

Design Criteria for Turbine-Generator Pedestals

*American design practices and criteria for large turbine generator pedestals is reviewed. Parametric studies show that, irrespective of its rigidity, the mat should be included as part...*

Matrix Force Analysis of Thin-Walled Structures

*The Bernoulli's hypothesis of plane cross sections remaining perpendicular to the deformed center line does not adequately approximate the deformation due to the torsion of...*

Torsionally Stiff Columns under Eccentric Loads

*A computer program was developed to predict the strength of hollow rectangular tubular columns with ends pinned and free to rotate in any direction for various load eccentricities with...*

Torsion Analysis of Heavy Box Beams in Structures

*Heavier box sections with thicker walls without the need of longitudinal stiffeners are widely used to resist combined torsion and bending loads in machines such as earth-moving and mining...*

Concrete Beams in Bending, Torsion and Shear

*The results of tests on 18 rectangular reinforced concrete beams subjected to combined bending torsion and shear are reported. The principal variables were the ratio of twisting to bending...*

What Do We Know about Torsion in Concrete Members?

*Recent research on torsion in concrete members is reviewed and summarized. Different versions of the skewed bending concept are compared and the effect of web reinforcement and prestress...*

Torsion, Shear, and Bending on Stirruped L-Beams

*Test results on reinforced concrete L-beams with closed stirrups under combined torsion, shear, and flexure are reported. Emphasis is placed on beams having less longitudinal steel than...*

Experimental Study of Flexural-Torsional Buckling

*The results of an experimental study, 48 tests, of the flexural-torsional buckling behavior of two-span beams and rigid frames are presented and compared with the theoretically predicted...*

Tapered Box Girders of Deformable Cross Section

*A general theory of torsion of tapered box girders of deformable cross section, its experimental substantiation, studies of the ultimate strength of box girders, and the use of the theory...*

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