Pipelines in the Constructed Environment
This proceedings,
Cure for Thinning Concrete
After placing 75% of the concrete liner for twin 4.6 km transit tunnels in Portland, Ore., engineers discovered areas of concrete that were thinner than the prescribed 305 mm thickness....
Northumberland's Ice Breaker
Extending more than 12.8 km over treacherous waters, the new Northumberland Strait Crossing had to go a long way to finally join the last separate Canadian province to the mainland. Design...
Stressing Masonry's Future
Post-tensioning techniques are expanding the possibilities for masonry in building and bridge construction. Two projects in Britain and the U.S. show the rewards of rethinking approaches...
A Race to Innovate
The annual Concrete Canoe Competition, which is co-sponsored by the ASCE and Cleveland-based Master Builders, fosters several engineering breakthroughs that are ignored or forgotten by...
Concrete Colossus
After finding 120 million cubic meters of oil and 30 billion standard cubic meters of natural gas 175 kilometers off the Norwegian coast, Houston-based Conoco, Inc. was faced with a second...
Better Salt Storage
Facing tighter maintenance budgets and stringent environmental regulations, many highway departments are designing and building innovative structures to store road salt. One such structure...
A Dual Answer to Seismic Stress (Available only in the Structural Engineering Special Issue)
Are two systems better than one? When it comes to high-rise seismic design post-Northridge, the answer may be yes, based on studies conducted by CBM Engineers, Inc., Houston. The aftermath...
Manhole Rehab
Using trenchless technology, two construction crews working on the Massachusetts Water Resources Authority's Wellesley Extension Relief Sewer project rehabilitated 83 manholes...
Advances in Structural Optimization
A compilation of twenty papers,
The Pipes Sound Off
Using technology developed by the navy, engineers are now able to determine the condition of prestressed concrete cylinder pipes by listening to the prestressing wires as they break....
A Signature Bridge for Boston (Available only in Structural Engineering Special Issue)
The first hybrid steel and concrete span in America will debut over the Charles River in Boston, carrying ten lanes of interstate traffic and serving as an elegant capstone to the largest...
Braced for Failure (Available only in Structural Engineering Special Issue)
Investigations into the collapse of steel-framed structures often focus on minor, insignificant design flaws, only to ignore the real culprit: inadequate temporary bracing. The collapse...
Full Use of Arching in Deck Slabs (Available only in Structural Engineering Special Issue)
The use of arching concrete deck slabs allows engineers to safely reduce the amount of reinforcement at a significant overall cost savings. Engineers with the Ministry of Transportation...
Recycling Penn Forest Dam
Almost since it's construction more than 30 years ago, the Penn Forest Dam had suffered severe seepage, leading officials in Bethlehem, Penn., to wonder how secure their largest...
Intelligent Civil Engineering Materials and Structures
This report surveys the interdisciplinary research activities focused on the applying new technologies to infrastructure systems. Traditional civil engineering tools are not sufficient...
Guidelines for the Design of Double-Layer Grids
Prepared by the Task Committee on Double-Layer Grids of the Committee on Special Structures of the Structural Engineering Institute of ASCE. This report...
Underwater Magic
Applications of geomembrane systems to arrest concrete deterioration and control leakage in hydraulic structures have been accomplished, with a few exceptions, in a dry environment by...
Dampers Do the Job at Davis (Available only in Structural Engineering Special Issue)
Three recent earthquakes�the Kobe earthquake in Japan and the Loma Prieta and Northridge earthquakes in California�have caused engineers to take a much more serious approach to seismic...
Construction Safety Affected by Codes and Standards
These five papers present an insight into, and highlights of, some very recent design/construction standardization activities in the US, Canada, Great Britain, Japan and Israel. New performance-type...
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