Changes in Tubular Design Codes
This paper summarizes a number of changes in design provisions for tubular structures that have recently been adopted. These are the result of a number of research advances concerning...
Effective Length Factors for Type-PR Frame Members
The effects of PR-Type connections and loading arrangement on frame stability and the effective length factor of columns are evaluated for portal frames and three-story three-bay frames...
Buckling Design of Vierendeel Reticular Shells
Double layer reticular shell structures carry very little transverse shear, thus, it may be appropriate to substitute the inter-layer diagonal members with 'space'...
Stability of Plates Under Eccentric Edge Loads
A linear finite element analysis was conducted to study the stress distribution in the web and the flange when the beam is subjected to a patch load applied in the plane of the web or...
New Concepts in Transmission Line Design
Committees of the American Society of Civil Engineers have been in the forefront on updating design guides to address improved procedures for conventional latticed towers, formed-plate...
Sizing Techniques for Lateral Bracing
Techniques for determining the size of lateral bracing members in multi-story steel buildings are presented and discussed. Because the design of such bracing is usually controlled by deflection...
Brace Behavior in a Structural Steel Seismic Retrofitting Scheme
A two thirds scale non-ductile reinforced concrete frame strengthened by an external structural steel bracing scheme was constructed and tested in the laboratory. The frame was subjected...
Double Angle Bracing Members
It has been pointed out that when a single line of bracing is used, the member is usually made from structural tubing. It has been suggested that when the loads are not too great, consideration...
Seismic Behavior of Built-Up Bracing Members
The influence of stitch design and local buckling on the seismic behavior of welded bracing members made of double angles is studied in this paper. Performance of boxed configuration with...
Space Frame Experimental Behavior
Previous tests on double layer grid space frames have shown that, in some cases, significant initial forces exist. In addition, for externally determinate symmetrical tests, there was...
Preliminary Design Considerations for Flat Deployable Structures
Deployable structures are prefabricated frames that can be stored in a compact configuration, and can be easily deployed into a large-span, load-bearing space structure. The interest in...
Unistrut Space Frame Systems and Their Application
A review of the application of latticed structures is presented. The design and construction of space frames is dependent upon the availability of adequate connection systems to realize...
Trends in Development of Steel Space Structures in Japan
Trends in recent development of steel spatial structures in Japan are reviewed. Starting from reviewing early development after the World War II, structural systems such as pyramidal roof,...
Some Examples of Latticed Structures in Spain
Since the middle of the last sixties latticed structures have extensively been used in Spain to cover different large areas as factories, churches, marketplaces, exhibition palaces etc....
Elastic Stability of Non-Prismatic Columns
A matrix analysis technique for determining the elastic buckling loads for columns of general form is presented along with several numerical examples. In this technique, a non-prismatic...
Analysis of Tapered and Stepped Columns by Analogy to Cantilever Deflection
An analysis is developed for handling the buckling design of tapered and stepped columns with the aid of the so called 'amplification factors'. When these factors...
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 Io with...
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...
Design Issues in Steel Buildings
The Committee on Design of Steel Building Structures of the Committee on Metals of the Structural Division of ASCE was formed in 1981, with the express purpose of studying problems that...
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