Causes and Preventions of Lamellar Tearing: Engineer's Notebook
Within the past 10 years, a steel cracking problem, lamellar tearing, has arisen after welding of thicker sections and higher-strength steels. A separation underlying a weld joining plate...
Steel Cable-Stayed Bridges: Can They Compete in the U.S.?
During the past decade, concrete bridge designs have been winning more bids for contracts than steel cable-stayed bridges. Reasons for this trend are examined. A brief evolution of bridge...
Trouble Shooting ChemicaLly Resistant Masonry
This paper is a series of case histories showing specifically how lack of understanding of the nature of the materials and their proper uses has caused failure in design, specification,...
Minicomputers in Structural Optimum Design
A problem dealing with the weight optimization of girders without transverse stiffeners is demonstrated. Constraints follow the 1978 AISC Specification. Actual programming is done in BASIC...
Steel Structures Provide Flexibility
The steel structures of several major buildings are evaluated by the structural engineers responsible for the design and construction. Included are the Park Avenue Atrium in New York;...
What Type of Sewer Pipe is Best? Life-cycle Cost Analysis Yields Answer
In the past, many engineers have selected the type of sewer pipe for a particular project based mainly on a comparison of initial costs of concrete, steel, and other types of pipes. This...
The ABC'S (and Q) of Cold-Formed Steel Design
Cold-formed structural members are steel components that have been put into their cross-sectional shape by cold bending of flat sheets. Local compressive buckling must be carefully considered...
General Principles for the Stability Design of Metal Structures
The Structural Stability Research Council (SSRC) Technical Memorandum No. 5 is explored; this memorandum includes the general principles that form the bases of various SSRC recommended...
Luxury Hotel Features New York's First 8,000-psi Concrete
Designers of New York's $100-million Helmsley Palace Hotel realized significant economies by the use of high-strength concrete to replace structural steel and reduce column...
Construction of Power Generation Facilities
The impact of the present construction practice, codes, standards and regulations on the construction of power generation facilities is reviewed and examined in papers presented at the...
Symposium on Deep Foundations
Twenty-six case histories on the design, installation and performance of deep foundations are included. The emphasis is on testing and field data. Deep foundations are explored in cretaceous...
The Fly-Over: It Unclogs Urban Traffic in A Hurry
Fly-overs are light-weight, low-cost, prefabricated steel structures that elevate only one or two lanes over a traffic-choked city intersection but dramatically reduce congestion. By removing...
Cognac: World's Tallest Offshore Oil Platform
Shell Oil's 1980 OCEA-winner is a three-sectioned design of steel fabrication and deep-sea installation. Cognac is currently the world's tallest, heaviest, and...
New Telescope has Innovative Structural Design
The new optical telescope at Mt. Hopkins, Arizona, is the third largest in the world, but one of the most economical to build. The savings is the result of using 6 lightweight, small mirrors...
Republic Steel Recycling Over 85% of Wastewater from Steel Mill
At its hot-rolling mill in Canton, Ohio, Republic Steel is recycling over 85% of the wastewater it produces. The wastewater contains suspended particles of scale and oils and greases....
Structural Design of Tall Steel Buildings
This is the second in the ASCE five-volume Tall Building series. It is a comprehensive reference record and guide to the design and behavior of tall steel buildings. The volume is divided...
Seepage Cutoff Wall Installed Through Dam is Construction First
A new construction technique has been developed which provides a permanent solution to the foundation problems at Wolf Creek Dam. Muddy flows and sinkholes discovered in 1968 led to a...
Steel Plate Shear Walls Resist Lateral Load, Cut Costs
Two new buildings have a seldom-used stiffening system�� steel plate shear walls. Reasons for using them, rather than reinforced concrete shear walls or steel or concrete rigid frames,...
World's Tallest Offshore Platform Stands in 1025 Ft of Water
During the summer and fall of 1977 and 1978, Shell Oil installed the world's deepest drilling and production platform in water. Located in 1025-ft of water at the Cognac tract...
Concrete Microwave Tower is Award Winner
A microwave tower in Florida was built of cast-in-place concrete instead of steel, because: (1)Concrete was considered more esthetic than steel; and (2)concrete was more resistant than...
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