What Controls the Ultimate Load of a Glulam Dome?
A glulam dome is analyzed with the finite element method to determine the governing failure mode and ultimate snow loads. The dome consists of a triangulated network of curved glulam beams,...

Timber Structures
This paper deals with three different curvilinear timber structures of moderate spans - 120 feet to 200 fee +/-. In each of the three cases cited, the roof deck and boundary members are...

Experimental Study on a Buckling Behavior of a Wooden Single-Layer Space Frame of Reticular Shell on a Hexagonal Plan: Influence due to the Bolted Joint Looseness with Axial and Bending Resistance
The authors have investigated about the structural behavior of a wooden single-layer space frame structure with the bolted joints. We have carried out a buckling tests of a wooden single-layer...

Design and Construction of the Cable-Stayed Wooden Space Truss Roof
The thinning must be enforced for healthy development of an artificial forest. The most effective use of thinning lumber is construct of the space truss structure. This election systems...

Architecture and Lightweight Structures: A Methodical Design Approach
Lightweight structures such as membrane structures, shells, space-grid, lightweight trussed and suspended structures have become an integral part of the international building scene. While...

The Future of the Past: Historic Preservation at the Metropolitan Washington Airports
The historic significance and unique architectural character of Washington National and Washington Dulles International Airports have presented the Metropolitan Washington Airports Authority...

Representing Design Cases Based on Methods
This paper discusses an approach to representing design cases using the methods used in solving specific design problems. This differs from the conventional representation of design cases...

Computer Analysis of Lateral Loading in Wood-Framed Structures
Building codes and design techniques associated with single-family housing need to incorporate advances in architecture and construction so that the traditional life-safety building codes...

Measured Downdrag on Seven Coated and Uncoated Piles in New Orleans
A site outside of New Orleans, Louisiana was selected as part of a research effort to study the phenomenon of downdrag on bitumen-coated piles. Two steel pipe piles, two timber piles,...

Model of an Upgrade
As further studies and more extensive computer models help engineers better understand the workings of wastewater treatment plant processes, those engineers are finding more efficient...

Steam Plant Becomes Biotech Lab.
With its prominent lakefront location and imposing size, Seattle's Lake Union Steam Plant is visible from many parts of the city. For most of this century, the plant's...

In Rehab We Trust
Glulam structures will be durable and last for a long time provided structural elements are protected from water and moisture. Once water is allowed to come into direct contact with glulam...

The Engineer As Preservationist
Engineers in the U.S. have been involved in historic preservation at least since 1966, the year ASCE's Committee on the History and Heritage of Civil Engineering designated...

The Mexican Migration
The North American Free Trade Agreement has made Mexico an attractive market for U.S. firms, particularly in the environmental field. At the same time, privatization (as with toll roads...

Connectors for Earthquake Resistant Structures
Damage assessments from the past several earthquakes located on the northern, central and southern zones of the San Andreas Fault - Cape Mendocino: April 1992, 7.1; Loma Prieta: October...

The European Approach to Seismic Design of Engineered Timber Constructions: The Case of Low-Dissipative Structures
In the present paper the importance of the dissipated energy on the actual structural behaviour of low-dissipative structures as glulam portal frames with mechanical fasteners under seismic...

A General Hysteresis Model for Wood Structures
To predict the dynamic response of a wood structure, its energy dissipation mechanism and hysteresis behavior must be appropriately modeled. This paper presents a new hysteresis model...

Fire Retardant Treated Wood
The paper explains how FRTW chemicals react with combustible gases. It describes the two types into which FRTW is divided. Misconceptions about FRTW are also addressed....

Fire Endurance Model for a Metal-Plate-Connected Wood Truss
A numerical model has been developed for predicting the fire endurance of a single metal-plate-connected wood truss. Extensive component fire testing was conducted to develop the necessary...

Nondestructive Evaluation of Timber
Nondestructive evaluation of materials, the science of identifying the physical and mechanical properties of materials without altering their end-use capabilities, is valuable in defining...

 

 

 

 

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