The Leaning Towers of Wilmington, Delaware: Emergency Response and Retrofit of the I-495 Viaduct to Address Lateral Squeeze
On a sunny, summer afternoon last June, the project manager for AECOM's open-end bridge design contract with the Delaware Department of Transportation (DelDOT) received an...

Viral Fate and Transport Modeling under Salinity Impact
This research studied the impact of salinity on sorption and transport of MS-2 in saturated sand through one-dimensional column experiments. MS-2 was used as a surrogate to understand...

Building Code Requirements and Specification for Masonry Structures
Containing Building Code Requirements for Masonry Structures (TMS 402-08/ACI 530-08/ASCE 5-08, Specification for Masonry Structures (TMS 602-08/ACI 530.1-08/ASCE 6-08) and Companion Committees
The Code covers the design and construction of masonry structrures while the Specification is concerned with the minimum construction requirements for masonry in structures. Some of the...

Post and Pad
As the name implies, this type of foundation consists of a concrete or wood pad placed on or buried in the ground. It is the lowest priced option for buildings on frozen silt, which may...

Concrete Biaxial Column: Introduction
This chapter introduces the subject of concrete biaxial columns....

Concrete Biaxial Column: Composite Circular Column
This chapter discusses the tabulation of composite circular column data in Microsoft Excel....

Concrete Biaxial Column: Partial Shell
This chapter discusses the tabulation of partial shell data in Microsoft Excel....

Concrete Biaxial Column: Photographs
This chapter includes photographs of concrete biaxial columns....

Column Deck Interface
This chapter discusses the tabulation of column deck interface data in Microsoft Excel....

Slab-Column Moment Shear Transfer
This chapter discusses the tabulation of slab-column moment shear transfer data in Microsoft Excel....

Power Shift
Engineers designing a Manhattan skyscraper with offices in the lower floors and residences in the upper found that they had to employ several unusual methods to accommodate client needs....

Reconstructed With Precision
Rehabilitating a heavily traveled crossing while traffic continues to flow is a complicated endeavor. Add the attention to detail required to preserve the character of a historic 1920's...

An Alternative Approach
An innovative foundation system at a Virginia power plant relies on columns constructed via jet grouting to support elevated units that reduce pollution. The approach required less drilling,...

Stability and Loads
This chapter examines stability and loads. Topics include stability and lateral load resistance during construction; effective lengths of cantilever columns; effect on stability of frame...

Evaluation of the Geo-Con Vert Wall System
Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF/IIEC Innovation Center This report describes a HITEC evaluation designed...

Winning Combination
The complex, 4.1-mi (6.6-km) long Richmond-San Rafael Bridge across San Francisco Bay is being upgraded as part of California's $2.5-billion program for seismically retrofitting...

Countering Chemical and Biological Terrorism
Prior to the terrorist attacks of September 11, building protection related to terrorism primarily focused on the threat of bombs detonated inside vechicles. However the September 2001...

Repeat Performance
Working with a budget of $10 million, engineers designing a new high-rise residential structure in New York City had to find creative ways to control costs. One budget-saving idea was...

Effect of Column-to-Beam Strength Ratio on Seismic Performance of RC Moment Frames
Reinforced concrete (RC) moment frames are often used in building applications. During strong earthquake excitations, such buildings have been subject to soft-story or column sidesway...

The Effect of the Slab on Beam-Column Joint Behavior
The three-dimensional effect of slab interaction on frame behavior has been observed in lateral load tests on beam-column-slab elements....

 

 

 

 

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