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Now showing items 31-40 of 54
Experiments on link-to-column connections in steel eccentrically braced frames
(2007-08)
This thesis describes the results of an experimental project on the seismic performance of link-to-column connections in steel eccentrically braced frames (EBFs). Previous research in this area has highlighted the very ...
Liquid nitrogen for cooling concrete : safety precautions, methods of injection, and effects on setting time and drying shrinkage
(2006-05)
This study investigated the effects and use of liquid nitrogen for cooling concrete. In the past, ice and chilled water have been the mainstays to cool concrete for mass pours in which the concrete must be a specified ...
Evaluation of redundancy in trapezoidal box-girder bridges using finite element analysis
(2007-08)
The AASHTO Bridge Design specifications define a fracture-critical member as a component in tension whose failure is expected to result in the collapse of a bridge. The tension flanges of twin box-girder bridges are thus ...
Structural assessment of bridge piers with damage similar to alkali silica reaction and/or delayed ettringite formation
(2006-05)
In recent years, it has been discovered that some structural elements of the I-10 and I-35 corridor passing through San Antonio, Texas (San Antonio Y) are suffering from premature concrete deterioration related to alkali-silica ...
Travel demand forecasting models : development, application, and comparison of aggregate and activity-based approaches for the Austin, Texas Region
(2007-08)
A great disparity exists between the direction of travel demand forecasting by researchers, and the travel demand models used by transportation planning organizations. Activity-based models of travel demand have become ...
Improved extended detention basin performance through better residence time control
(2006-05)
Extended detention basins are not used for stormwater quality management in many areas of the US because they generally do not achieve the 80% removal of total suspended solids required by many regulatory agencies. The ...
Case study analysis in support of front end planning on capital projects
(2006-05)
Many research investigations have indicated that projects have a higher chance of success when thorough front end planning is performed. Previous research efforts have sought to determine a statistical link between front ...
Measuring the implementation of best practices for project security
(2006-05)
The information presented in this thesis follows earlier research initiated by the National Institute of Standards and Technology (NIST) in conjunction with the Construction Industry Institute (CII). The thesis documents ...
Development of a cost estimation tool for right of way
(2007-05)
Right of Way (R/W) acquisitions is a significant component of a project's total cost. When owners reject the compensation offered for their properties as insufficient, the project comes to a halt until an agreement can be ...
Combined transportation and utility construction : assessment of CTUC strategy on recent projects
(2006-12)
With the ever increasing demand for a streamlined network of highways, TxDOT is making substantial efforts to reduce project delivery times and their associated costs to the traveling public. This research endeavor assesses ...