Intermediate Stiffeners for Thin-Walled Members
An effective width approach is presented for predicting ultimate strengths of thin-walled compression elements with intermediate stiffeners. The study is limited to intermediately stiffened...

Wave Forces on Rigid Pipes Using Ocean Test Data
A test pipe rig was designed, fabricated, and then placed in the ocean, offshore from Honolulu. The pipe diameter was 16 inches, its length 17.5 feet, and the water depth was 37 feet....

Optimality Criteria Method for Building Frames
An automated procedure is presented for the optimum design of large frameworks having size, stress and displacement constraints. The main feature of the algorithm is the use of a simple...

Parameter Study of Outrigger-Braced Tall Building Structures
The behavior of outrigger-braced tall building structures is studied taking into account the flexibility of the outriggers. Expressions are developed for the core moment distribution,...

Dynamic Response of Foundations with Arbitrary Geometries
A procedure is developed for determining the dynamic response of an elastic- half-space to the rigid body motion of an irregularly shaped foundation. The method is to subdivide the foundation...

Earthquake Rocking Response of Rigid Bodies
Using a computer program, the rocking and overturning response of rectangular blocks of various sizes and aspect ratios is studied under several strong motion earthquakes. The effect of...

Dynamic Behavior of Floating Storage Vessel
The response of a cylindrical floating storage tank due to small amplitude reqular waves is analyzed. The storage vessel is anchored by means of a riser connected to the ocean floor. The...

Frame-Wall Systems with Rigidly Jointed Link Beams
A new continuum model for the lateral load analysis of frame-wall systems with rigidly jointed link beams is presented. It consists of a vertical shear element with infinite flexural rigidity...

Elastic Instability of Unbraced Space Frames
Elastic instability of rigid-jointed, unbraced, single-story single-bay, orthogonal space frames subjected to static loads at the column tops is studied. The columns are assumed to be...

Torsional Rigidity of Partially Yielded I-Sections
Steel beam-columns of I-shaped cross section commonly collapse in a flexural-torsional mode. The St. Venant torsional rigidity is therefore one of the relevant section properties in analysis....

Plane Stress Analysis Using Modified Sector Element
The object of the present study is to develop a modified annular sector element (PSR element) that can give quite acceptable results even for a coarse mesh. The PSR element is developed...

Mechanism Generation for Limit Analysis of Frames
A method is presented for the automatic generation of the required basic mechanisms for use in a limit (collapse) analysis of a planar structure. Constraint equations are written to ensure...

Doubly Curved Membrane Shell Finite Element
The formulation and testing of a high-order doubly curved membrane shell finite element is presented. Specialized for application to shells of revolution, the element is defined by lines...

Torsion of Solid and Hollow Rectangular Beams
The derivation of an expression for the St. Venant torsional stiffness of a beam of variable torsional rigidity is given, and this is applied to the evaluation of this stiffness for tapering...

Stability Analysis of Cable-Stayed Rigid Frames
The stability analysis of two-dimensional cable-stayed rigid frames containing a mixture of rigid and pin joints, may be conveniently performed on the computer to obtain the critical buckling...

Least Weight of a Sandwich Panel

Free Lateral Vibrations of Liquid Storage Tanks

Continuous Skew Orthotropic Plate Structures
A series solution has been developed to analyze continuous skew orthotropic plate structures subjected to laterally applied uniform and concentrated (patch) loads. Various practical skew...

Buckling of Imperfect Rigid-Jointed Frames
The buckling of multistory, multibay frames is investigated. A method of analysis is presented for estimating directly critical conditions, for both bifurcational and limit point type...

Strength of Steel Frames under Gravity Loads
The stability of tall, rigidly-jointed, unbraced, steel frames under pure gravity loads is ensured when proportioned by the current allowable-stress concept provided they meet certain...

 

 

 

 

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