Turning with the Wind
A 125-m high tower built at the site of the Glasgow Science Center in the United Kingdom required some innovative design methods. To reduce the aerodynamic effects imposed on the slender...

Handrail Graspability

Retail Renovations (Available only in Structures Special Issue)
As stores change ownership and retailers establish outlets in older urban buildings, renovation and rebuilding of stores is a national trend--and a growing business niche for structural...

New Way Out
An obsolete and hazardous ventilation/emergency-exit shaft on the banks of the Hudson River has been replaced with a deep, dual-shaft system that connects to a 100-year-old train tunnel...

Airport Towers: A New Generation
Airport control towers are a unique building type with monumental significance, both for the cities that own and operate the airports, and for the FAA which owns and operates them. Airport...

Six Story Tubular Atrium
The author designed an atrium structure with two stair-stepped atriums placed at 45° to the tower 'Figueroa at Wilshire' in Los Angeles, California. This structure...

Liberty Restored
The Outstanding Civil Engineering Achievement of 1987 is the restoration of the Statue of Liberty in New York Harbor. The restoration work included many engineering tasks that by themselves...

Factory Chic
Developers of the International Design Center of New York have recently spent $163 million to convert an unused chewing gum factory and a former battery plant into a showcase for New York...

Restrained Warping in Free-Standing Staircases
This paper reports the results of a study investigating the role of restrained warping stresses in the behavior of a two perpendicular flight, free-standing staircase. This paper verifies...

Three-Flight Free-Standing Stairs
A three-flight free-standing stairs can be architecturally attractive and will give new opportunities to architects and design engineers. This type of stairs usually comprises two flights...

Helicoidal Girders
The helicoidal girder has gained popularity as a structural member in staircases and bridges during the last decade. Analyses of this type of girder have been presented by Bourdin, Fuchssteneir,...

Free-Standing Stairs with Slabless Tread-Risers
A freestanding stair with slabless tread-risers could be architecturally attractive. The analysis of freestanding stairs has been studied by Fuchssteiner, Szabo, Leibenberg, Siev, Sauter,...

Study of Three-Flight Free-Standing Staircases
A new form of free-standing stair (herein referred to as three-flight stair) is analyzed by three methods, the first two of which idealize the structure into linear bars and the third...

Designing for the Disadvantaged: Optimum Design Considers All Users
Design practices in recent engineering projects show that consideration for the full human utility of building and transportation systems is receiving increasing attention. Previously,...

Human Responses to Stairways, Walkways and Ramps: Some Recent Findings

Photoelasitc Analysis of Free-Standing Stairs
A detailed investigation has been conducted on a free-standing stairs model subjected to its own weight using photoelasticity, the results of which are reported herein. The photoelastic...

Energy Cost and Stair Design: A Preliminary Report

Linear Response to Nonstationary Random Excitation
The class of inputs considered herein is that of a stationary process multiplied by a deterministic intensity function. Both the stationary process and the intensity function may be arbitrarily...

Turn Penalty Effects on Minimum Time Paths
The transportation planning process is dependent upon the minimum path algorithm to develop the more logical route from the origin zone to the destination zone using the existing or proposed...

Computer Analysis of Tower Verified by Testing
The application of the STAIR (STructural Analysis Interpretive Routine) Computer program to the analysis of transmission towers results in a more exact stress analysis than can be accomplished...

 

 

 

 

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