# Computer Bifurcation Analysis of Rigid Frames with Yielded Columns

Framework Stability by Finite Element Method

*In this note the error in the computation of the elastic critical load of columns and rigid-jointed plane frameworks by the finite element method, as developed in general by Gallagher...*

Bending of Ring-Sector Plates of Variable Stiffness

*For the bending of ring plates of varying thickness having rotational symmetry in rigidity, loading, and boundary conditions, a wide range of solutions have been reported in the literature....*

Estimated Weight of Plane Building Frames

*The automatic elastic design of unbraced rigid frame multistory steel buildings has been accomplished by a computer program. The technique employed makes use of approximate and exact analysis...*

Trapezoidally Corrugated Plates in Shear

*Rather precise elastic analyses have been made of trapezoidally corrugated plates in shear with four different kinds of discrete attachment between the ends of the corrugations and the...*

Analysis of Some Double Layer Grids

*An approximate method of analysis based upon the replacement of planar trussed members by analogous prismatic I-beams in double layer diagonal grids is examined. The goemetrical properties...*

Evaluation of Nuclear Power Plant Structural Foundation Rigidities

Hanging Cable as Rotational Vibration Absorber

*Many basic textbooks present an analysis of free vibration of a uniform cable hanging in a gravitational field. An extension to illustrate the effects of a concentrated tip mass is given...*

Fictitious Strains Due to Rigid Body Rotation

*The behavior of structures that exhibit large displacements under loading must be predicted through a nonlinear analysis in which terms higher than first order are included in the strain-displacement...*

Linear Structural Analysis of Multistory Buildings

*A technique is developed for the analysis of two or three-dimensional multistory building frames subjected to a general system of loads. Floors are assumed to be perfectly rigid in their...*

Gradient Methods in Optimum Structural Design

*The paper presents two new gradient-based methods for the optimum design of skeletal structures. Both methods can accommodate stress, member size, and displacement constraints and can...*

Analysis of Lateral Buckling in Plane Frames

*A general and systematic method of analyzing the elastic flexural-torsional buckling of rigid-jointed plane frames with I-section members and subjected to in-plane loads is developed....*

Simplified Analysis of Framed-Tube Structures

*A simplified method is presented for the analysis of framed-tube structures subjected to lateral loads. The rigidly jointed perimeter frame panels are replaced by equivalent orthotropic...*

The CSM Cell — a Borehole Device for Determining the Modulus of Rigidity of Rock

Buckling of Slanted Columns

*A slanted column may represent an inclined member of a truss, a frame, or a meridional element of an axisymmetrically deformable conical shell with rigid edges. Such a structure has a...*

Displacements and Stresses in Nonhomogeneous Solid

*An analysis is described for determining the displacements and stresses in an isotropic nonhomogeneous elastic solid whose modulus of rigidity varies with the depth. The solid, which is...*

Stress Distributions Around Shallow Buried Rigid Pipes

*Normal and tangential loads on shallow buried rigid pipes due to superimposed surface loads are calculated by the finite element method. The effects of the variations in the length of...*

Stiffness Center Method

*A approximate analysis of rigid frames using a new concept, called the stiffness center, is presented. It has been shown that when a skeletal elastic system is idealized as a configuration...*

Ultimate Strength of Multistory Steel Rigid Frames

*Load displacement relationships of large plane multistory steel rigid frames have not been investigated extensively. A numerical technique for the elasticplastic analysis of rigid frames...*

Differential Settlement of Buildings

*Published case histories of differential settlement reveal a relation between the maximum measured differential settlement and damage to buildings. This relation, first proposed by Skempton...*

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