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Optimum Design of Tapered Tubular Members
An algorithm for designing a tubular structural member with constant taper is presented. The design criterion is that the maximum absolute stress produced by a set of loading conditions...

Buckling Load of Tapered Columns
The basic tapered column with larger section in the center, is considered using Rayleigh-Timoshenko method. Column has linearly increasing I_o with...

Buckling of Variable Cross-Section Columns
An approximate solution for the problem of buckling of variable cross-section columns, loaded by variable axial force is given, for several boundary conditions. Both the cross-section...

Parametric Study of Bracing in Lattice Towers
The behaviour of cross-bracing comprising struts and ties connected at their cross-over joints in lattice towers is subject to some uncertainty. It is affected significantly by taper and...

Steel Girt Design
Procedures are presented for the design of light gage cold formed girts and hot rolled girts. The effects of continuity, sag rods, and wall sheeting are discussed. Design procedures are...

Cold-Formed Z-Sections Under Axial Load and Bending
The use of cold-formed Z-section members as beam-columns presents some unique design problems which are not adequately addressed in the current design specifications. If these members...

Automated Load Capacity Determination of Cold-Formed Steel Compression Members
This paper presents an automated approach for the evaluation of the axial load capacity of nine cold-formed steel sections according to the latest AISI-1986 Cold-Formed Steel Specification....

Seismic Response of Flexibly-Connected Steel Frames
The response of typical low-rise steel building frames designed by the 'Type 2 Construction' method to moderate earthquakes is examined. Such frames are often...

End Plate Moment Connections for Cyclic Loads
Three pilot tests of full size end plate moment connections under cyclic loading are discussed. In one of the specimens, the premature fracture of one of the inner bolts suggests the possibility...

Strength of Biaxially Crooked Jumbo Columns
The ultimate strength of axially loaded jumbo columns with biaxial initial out-of-straightnesses is analyzed by the finite element method. The analysis makes use of the measured residual...

Stablity Considerations in the New E&CS Building
The new Engineering and Computer Science (E & CS) building at California State University, Sacramento (CSUS) is a five-story structure characterized by two shear walls in the east-west...

Tripping and Strength of Asymmetrical Plate Stiffeners
Tripping (lateral-torsional buckling) of symmetrical or asymmetrical plate stiffeners can be analyzed by using differential equations or energy formulation. An analytical study is reported...

Portal Frame Stability with Nonproportional Loads
An inelastic theoretical study of the effect of various load paths is conducted on the in-plane behavior of an imperfect portal frame with flexible joints. The loading consists of concentrated...

Experiments on Active Structural Control Under Seismic Loads
Two control systems, an active tendon system and an active mass damper system are selected for study for possible real structural implementation. Presented in this paper are simulation...

A Comparison of Performances of Various Frictional Base Isolation Systems
The results of a comparative study of the performances of several frictional base isolation devices including the Sliding-Joint, the French System, and the Resilient-Friction isolators...

Frequency Response Design of Controlled Structures
The installation of optimal control systems has been shown to be effective in reducing the vibration responses of structures. In addition to the effectiveness, there are many factors that...

Applications of Fuzzy Mathematical Programming in Structural Optimization
In this paper, several applications of fuzzy mathematical programming in structural optimization are reviewed and discussed. In addition, a formulation of optimum earthquake resistant...

A KBES for Seismic Design of Buildings
A knowledge-based expert system for earthquake resistant design of buildings is described. The knowledge-intensive nature of the domain and the consequent motivation for an expert-system...

A Knowledge Based System for Deriving Qualitative Seismic Behavior
The analysis and design of complex or critical facilities, such as tall buildings, nuclear power plants, offshore structures, or cable stayed bridges requires that these facilities be...

A Knowledge-Based System for Evaluating the Seismic Resistance of Existing Buildings
The large number of existing buildings designed without considerations of seismic loading warrants the development of computer aids for the evaluation of their seismic resistance. Since...

 

 

 

 

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