# 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...*

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...*

Tangent Stiffness in Plane Frames

*With reference to planar framed structures, a tangent stiffness matrix is derived that does not require any approximation beyond those used in the conventional beam-column theory. The...*

Lateral Stability of Wood Beam-and-Deck Systems

*Modern timber structures frequently employ large wood beams bridged by 2 in. wood decking. Economy of material dictates the use of deep narrow beams whose design is limited by considerations...*

Three-Dimensional Interaction of Walls and Frames

*The three-dimensional interaction of several plane walls, open section walls, and plane frames is studied under the action of horizontal forces. Walls are taken to have infinite shear...*

Short Term Deflection of Concrete Flat Plates

*Short term deflections of concrete flat plates are considered. Deflection results from a number of finite element analyses of flat plates are examined and used to provide empirical formulas...*

Effect of Major Axis Curvature on I-Beam Stability

*In the flexural-torsional buckling of beams, it is common practice to assume that the major axis flexural rigidity,*EI ,...

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Impulsive Hydrodynamics of Submerged Rigid Bodies

*A theoretical approach to the calculation of hydrodynamic loads is outlined herein and numerical results are presented for several submerged configurations. Computations were carried out...*

High Order Rectangular Shallow Shell Finite Element

*The stiffness matrix for a high order shallow shell finite element is presented explicitly. The element is of rectangular plan and possesses three constant radii of curvature: two principal...*

Unbraced Multistory Steel Frames with Wind Load

*An approximate method is developed for the rapid plastic analysis of multistory steel rigid frames subject to sidesway under combined gravity and wind loading. Equilibrium is formulated...*

Frequency Analysis of Tapered Orthotropic Plates

*A systematic method based on the relatively well-known enclosure or comparison theorem of Callatz is used to obtain the upper and lower bounds for the fundamental frequency of simply supported...*

Boussinesq Problems for Nonhomogeneous Solid

*An integral transform solution is reported to determine the state of stress and deformation in a semi-infinite solid whose modulus of rigidity increases with its depth according to a power...*

Aspects of Column Design in Tall Steel Buildings

*Present design procedures (1971) for steel columns imply that each column in a story is capable of resisting a lateral force including that produced by the axial force as the structure...*

Performance of Pile Driving Hammers

*Using results from both theory and measurements the action and behavior of hammer-pile systems are considered. Three types of models are used to describe the behavior of a hammer-pile...*

Experimental Investigation of Thin-Steel Hyperbolic Paraboloid Structures

*Extensive tests on inverted umbrella and saddle-shaped models indicate that the design of thin-steel hypar roofs is usually governed by stiffness, rather than by stress limitations. The...*

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