Snow Load Design for Colorado Mountains
During the past decade, Colorado mountain construction has experienced a period of rapid growth. New ski resorts and other business developments have resulted in many new facilities. For...

Alterations to Old Wood Building
In order to accommodate a new use, a request was made to remove bearing walls supporting the roof of a 42 year-old building and substitute timber posts. The existing nine-foot ceiling...

Precast Roofs for Blast Shelters
A shallow-buried reinforced concrete blast shelter has been constructed and dynamically tested at the U. S. Army Engineer Waterways Experiment Station (WES). Three thicknesses of precast...

Lessons Learned From Examination of Membrane Roofs in Alaska
During 1984 and 1985 airborne infrared roof moisture surveys were conducted of membrane roofs at Army installations in Alaska. Many of these roofs were also visually inspected and cored...

Building Records from 1984 Morgan Hill Earthquake
The dynamic response of 23 structures instrumented by the California Strong Motion Instrumentation Program was recorded during the magnitude 6. 2 (ML) Morgan Hill earthquake of 24 April...

Case Studies in Upgrading of Wood Trusses and a Heavy Timber Building
Three case studies in upgrading and rehabilitation of wood structures are presented. One case study relates to three 30m (100ft) span bowstring trusses that had to be cut at various span...

Hypars and Wood Shells—The Boston College Recplex
For the past twenty years, we have been involved in the design and construction of intermediate span wood hyperbolic paraboloid. During that time the spans have ranged from 50 ft. to 200...

Shrimp Farm Made Feasible
Engineers on a limited budget developed a facility on the island of Oahu, Hawaii, where Mexican blue shrimp are being raised commercially. A series of U shaped sections were laid parallel...

Computer Modeling of Roof Support
The Bureau of Mines is using a full-scale geotechnical model of a 15-foot-wide (4. 6-m) coal mine entry in correlation with computer finite-element analysis at its Spokane Research Center...

Wind Speeds for Gravel Scour and Paver Lifting on Roofs

Preliminary Collapse Analysis of a Space Truss

High Tech Is More Than a Look
Hollow steel section, also known as tubular steel, is being used for its clean dramatic look, its structural efficiency in compression, the economic efficiency of combining structure and...

Reinforcing Roof Truss Frames Under Load
Without altering the roof structure of an industrial boiler plant, a long-span steel truss frame was modified in place to support heavier loads. The owners of an industrial boiler plant...

Stochastic Post-Failure Models of Buried Slabs

Snow Load for Earthquake Analysis

A New Wind Tunnel for Building Aerodynamics

Session Report on Subassembles — Walls, Floors, Etc.

Wood Trusses and Other Manufactured Structural Components
Roof trusses, floor trusses, wood I and box beams, and glued-laminated timber are discussed. Some of the major recommendations for future research include improved analytical techniques...

Session Report on Trusses and Manufactured Structural Components

San Francisco Convention Center Goes Underground
The Moscone Convention Center, built at a construction cost of –126 million, opened its doors to an admiring public on December 2, 1981. The Center's grand exhibit hall, 90...

 

 

 

 

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