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Available Compaction Equipment
When discussing available compaction equipment we must keep in mind the purpose of compaction. Compaction is the art of artificially increasing the density or increasing the unit weight...

Restoration of Navy LTA (Lighter Than Air) Hangars
In 1942 and 1943 the Government constructed a series of 16 blimp hangars at ten Naval Air Stations along the east coast, west coast and gulf coast. The hangars erected in pairs housed...

Record High Rise, Record Low Steel
The Bank of China, under construction in Hong Kong, will be the world's fifth tallest building. In spite of the extraordinary codes for that city�high winds, and high live...

Probabilistic Limit States Design of Moment-Resistant Frames Under Seismic Loading
This paper focuses on the development of a methodology for the optimal probabilistic limit states design of seismic-resistant steel frames. A mechanism for allowing the designer to include...

Connection Panel Zone Deformation in Steel Frames
Conventional analyses of frameworks are usually carried out without considering the effect of panel zone deformation on frame behavior. As a result, center-to-center distances rather than...

Seismic Design of Braced Steel Frames
Seismic behavior of a six-story, K-braced structure without backup ductile moment-resisting frames designed according to the current Uniform Building Code is studied in this paper. The...

The Effects of P-Delta and Semi-Rigid Connections on Response Behavior of Inelastic Steel Frames Subjected to Cyclic and Seismic Loadings
A numerical method is presented for analyzing semi-rigid connected steel frames subjected to various time-dependent excitations with consideration of damping, nonlinear material behavior...

Rehabbing for Reuse
Case histories of four building rehabilitation projects highlight special challenges to their structural engineers. The Lits Building, Philadelphia, is a collection of eight structures...

Structural Applications of SIFCON
SIFCON (Slurry Infiltrated Fiber CONcrete) is a relatively new composite material utilizing steel fibers in a cement-based matrix. It differs from conventional steel-fiber-reinforced concrete...

Effects of High Pressure and Temperature on HCP
A modification of fabrication techniques for cement paste can significantly affect its properties. Specifically, the static compressive strength can be increased over that of specimens...

The Assessment of Freeze-Thaw Damage in Cement Stabilised Soils
Whilst the ASTM Freeze-thaw test was not originally conceived as a means for classifying the frost resistance of cement stabilised soils it has become accepted for this purpose, with the...

CADD Application to Structural Framing Systems
This presentation illustrates the formulation of a Computer Aided Analysis/Design/Detail (CADD) program package utilizing a common microcomputer data base. It presents a new CADD technique...

Software for Optimum Design of Highway Bridge Beams
A software system for analysis and optimum design of welded plate beams subjected to AASHTO highway bridge loads and specifications is described. The system has the capability to design...

Interactive Microcomputer Analysis and Design of Light Gage Steel Roof Systems
A hinderance to the widespread acceptance of the cold-formed steel roof Z-purlin in conventionally engineered buildings is due to the lack of a useful and efficient analysis and design...

Microcomputer Expert Systems for Welded Construction
Stone & Webster Engineering Corporation has developed expert systems including various applications within the field of welded construction. Systems have been developed in the...

Finite Element Analysis of Structural Details in Large Steel Bridge Superstructures
Various approaches for the finite element modeling of the connection details in large steel bridge superstructures are presented. It is noted that an accurate analysis of these details...

Computer Simulation of the Overload Behavior of Steel Multigirder Bridges with Cracked Girders
Various approaches of determining the structural response of steel multigirder bridges with cracked girders are presented. It is noted that linear finite element packages with three dimensional...

The River Walks of San Antonio Move to Providence
At the historic heart of Providence, Rhode Island, three rivers divide the city into three areas. Nearly one mile of river corridors have been abused over the last century, resulting in...

Bridging the Joints in Bridges
Most bridges are designed with gaps in them. The cracks allow bridges to expand and contract as the temperature changes. But water can enter these gaps and foul bearings and structural...

The Rise of the Tall Building
The development of the high-rise frame in the U.S. was the result of a collision of many factors. The destruction of Chicago in the great fire of 1871 was one major factor in the start...

 

 

 

 

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