Serviceability of Earth Retaining Structures
Civil Engineers increasingly face decisions concerning the serviceability of existing earth retaining structures. Serviceability limit states describe the functional disruption which occurs...
Focusing on Fatigue
Properly designed and maintained bridges sometimes need repair for fatigue damage. Among the reasons may be that the bridge was designed before current fatigue design provisions, or initial...
Historic Yorktown: New Bridge Keeps Old Design
In historic Yorktown, Va., the best solution to reconstructing an obsolete 1952 bridge was to keep its unique design while widening it for '90s traffic. Like the original,...
Civilian Structures: Taking the Defensive
The 1992 terrorist bombing of the World Trade Center in New York posed a challenging question to the engineering community: Can we design cost-effective structural systems for public and...
Space-Frame Pyramid
The world's largest space frame pyramid, completed at California State University in Long Beach in late 1994, proved to be a lighter weight and more economical alternative...
Geotechnical Baseline Reports
The greatest percentage of disputes in underground construction results from subsurface conditions that are different than from what is indicated in the contract. Adding geotechnical baseline...
Alternative Habitat Concepts for the First Lunar Outpost
The First Lunar Outpost (FLO) Study was a NASA-wide effort to define systems for a near-term, low cost return to the Moon. The FLO habitat must support four crew on the lunar surface for...
Standard Practice for Concrete for Civil Works Structures
Technical Engineering and Design Guides, as adapted from the U.S. Army Corps of Engineers, No. 8 This manual provides guidance for the investigation...
Sludge Under Pressure
Few wastewater engineers ever have to deal with high-pressure pumping. In San Diego, however, city engineers will soon oversee a 100,000 ft long psi main that will transport sewage sludge...
Meshing Computer Technologies
A growing number of clients, especially state DOTs, are requesting computer-aided design (CAD) documents in a specified format, leaving consulting firms to wonder how many different CAD...
Building Code Requirements for Masonry Structures (ACI 530-92/ ASCE 5-92/TMS 402-92); Specifications for Masonry Structures (ACI 530.1-92/ ASCE 6-92/TMS 602-92); Commentary on Building Code Requirements for Masonry Structures (ACI 530-92/ ASCE 5-92/TMS 402-92); Commentary on Specifications for Masonry Structures (ACI 530.1-92/ ASCE 6-92/TMS 602-92)
Copublished with American Concrete Institute (ACI) and The Masonry Society (TMS)
Deliverance
Through the years, the low-bid has been the traditional contracting method for American public sector construction. Increasingly, a number of government agencies are experimenting with...
Cable-Stayed Convention Center
Big convention center brings big money. For that reason, officials in Kansas City, Mo. hoped to double the size of the Bartle Hall Convention Center. Little available land, however, surrounded...
Fast-Track Stadium
The project team selected to design and construct Egypt's cable-supported Cairo Stadium Indoor Sports Complex in late 1989 faced a hard-and-fast deadline. Just 18 months later,...
Recycling on the Mississippi
Changes in the Mississippi River's water depth and alignment are forcing the retirement of the 105-year-old Hannibal, Mo. swing bridge. Although the bridge's...
Masonry Carries the Load
Engineers frequently have preconceived notions about building materials. Masonry, for example, is commonly selected by architects for its color and texture, rather than by engineers for...
Spotting Specs Offenders
About 80% of all specification related litigation is brought about by three different personality types all too common to construction projects. The problem is specifications abuse, when...
Fire Testing of Shotcrete Samples in a Small Furnace
The fire resistance behaviour of 8 shotcrete samples were investigated in a laboratory furnace applying ISO 834 standard test. Shotcrete was applied on 20 to 30 cm thick granite slabs...
Design of Shotcrete Linings at the Channel Tunnel
Shotcrete is one of the essential support elements of tunnels driven according to the principles of the New Austrian Tunnelling Method (NATM). Whereas originally the NATM was mainly based...
GIS Application for Post Earthquake Investigation
The Post Earthquake Investigation Team (PEQIT) at the Office of Structure Design, Division of Structures, CALTRANS, has been organized since the 1971 San Fernando earthquake. It is an...
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