Deflections of Framed-Tube Structures
In two earlier papers a simplified method was presented for the analysis of the stress distribution in framed-tube structures subjected to bending and torsion. By replacing the discrete...

Torsion in Spandrel Beams
In a reinforced concrete spandrel beam, reduction in torsional moment can occur due to redistribution of internal actions after cracking. As a result, design based on the conventional...

Ambient Vibration Tests of Suspension Bridge
Extensive experimental investigations were conducted on the Vincent-Thomas Suspension Bridge at Los Angeles Harbor to determine natural frequencies and mode shapes of vertical, torsional,...

Vibration Frequencies of Buried Pipelines
To aid the research on seismic vulnerability, behavior and design of underground piping system, this paper develops and provides the basic fundamentals of dynamics of buried pipelines....

Local, Distortional, and Lateral Buckling of I-Beams
The finite strip method is used to study the local, distortional, and flexural-torsional modes of buckling of I-beams bent about their major axis. The interaction between these modes is...

Lower Bound Limit Design of Concrete Structures
A lower bound method has been developed for the limit design of indeterminate concrete structures subjected to torsion. In this method, a stress resultant field that satisfied all the...

Bending of Strip with Semielliptic Notches or Cracks
Strips with semi-elliptical notches or edge cracks on both sides are analyzed as a thin plate bending problem. The rational mapping functions of a sum of fractional expressions are used...

Cyclic Metal Plasticity: Experiments and Theory
Stress-strain curves are presented for random inelastic cyclic loadings of 2-in. (51-mm) diameter, thin-walled ASTM A106 seamless steel tubes subjected to uniaxial and torsional experiments....

Torsion in Concrete Beams Containing an Opening
An analysis is presented for predicting the strength of reinforced concrete beams that are subjected to torsion and have openings cast in them in order to provide for the passage of service...

Torsional Vibrations of Pile Foundations
Figures are presented to facilitate this application and the response of various representative footings to torsional excitation is also shown. For a pile group the contribution of pile...

Behavior of Concrete Beams in Torsion and Bending
Using the familiar skew-bending model, a general theory is developed for reinforced concrete beams in combined torsion and bending. The theory is applied to predict the complete behavior...

Effects of Torsional Coupling on Earthquake Forces in Buildings
The elastic response of torsionally coupled one-story buildings to earthquake ground motion, characterized by idealized shapes for the response spectrum, is studied. Influence of the basic...

Elastic Earthquake Analysis of a Class of Torsionally Coupled Buildings
A simple procedure is developed for analysis of elastic response of a particular class of torsionally coupled multistory buildings to earthquake ground motion, characterized by smooth...

Motion of Suspension Bridge Subject to Wind Loads
Vertical and torsional motions of a suspension bridge due to wind loading are studied. Both, self-excited, due to bridge motion, and buffeting, independent of bridge motion, wind loads...

Damping Ratio for Dry Sands
Using the Torsional Simple Shear Device, the writers investigated the relationship between damping ratio λ and shear strain γ for Ottawa, Del Monte, Golden Gardens, and Seward Park sands....

Plastic Analysis of Curved Beams under Point Loads
An interaction equation, with values of bending moment and torsion at full plasticity of the section, based on results in the literature, is used in the analysis. The effect of shear force...

Torsional Seismic Response of Symmetrical Structures
An approach to evaluate the torsional effect has been presented, using the time-history method of analysis. This approach considers the effect of building size, wave propagation velocity,...

Effect of Shear on Collapse of Curved Beams
The principal structural actions in beams curved in plan are bending, torsion, and shear. Available methods of plastic analysis are based on the simplifying assumption that the effect...

Motion of Suspended Bridge Spans under Gusty Wind
The buffeting response of suspended-span bridges can be calculated if certain wind-tunnel section model data, plus wind spectral information, are provided. The needed wind tunnel data...

Frame Analysis of Shear Wall Cores
Existing methods for analysis of shear wall cores tend to involve techniques somewhat unfamiliar to designers. The frame method does not reequire the use of mathematics by the user and...

 

 

 

 

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