Conducted wind tunnel tests on 3 long-span bridges, including suspension bridge, arch bridge, and cable-stayed bridge. Conducted FEA analyses to find critical parameters. Designed and prepared scaled models for wind tunnel testing to find the critical wind limitations and aerodynamic derivatives. Designed and prepared scaled models for wind tunnel testing to find the wind-rain interaction effects to the aerodynamic stabilities of long-span bridges.
Designed bridge deck systems, deck drainage system, and maintenance platforms of the 4.3-mile-long bridge. Designed three identical 230-foot-span simply supported steel girders.
Performed FEA analysis for the global behavior of the steel tower. Provided recommendations for member sizing requirements for the tower and diaphragm. Determined the layouts of steel plate stiffeners to control stress concentrations and local bulking.
Conducted wind tunnel tests on 6 high-rise buildings to quantify the wind load, including classified the ground surface roughness category and wind exposure category, simulated wind profile characteristics in the wind tunnel, designed the scaled building model for the test building and surrounding structures, installed wind pressure sensors on the surface of the building model, recorded wind pressure under each test profile, analyzed and calculated the drag coefficient and gust effect factors to determine the wind pressure for the build, and drafted the test report.
Conducted Txdot research project: “Designing for Deck Stress over PCPs in Negative Moment Regions” and “Implementation of Field Instrumentation Steel Girder Bridge with PCPs", with
experimental investigation of the concrete deck cracking behavior in concrete and steel girder bridge superstructures, including long-term field monitoring and live load testing of 6 bridges during construction, large-scale laboratory testing on three composite bridges with parametric deck reinforcing details, and performed series FEA analysis to determine a practical deck design method.
Freeze Damage - TSA did a detailed inspection of the interior and roof of the warehouse.
Water damage to the roof deck and product was apparent during the site inspection.
Moisture mapping was conducted to prove water infiltration to the roof.
Wind and Hail - An investigation of the interior and roof revealed water damaged ceiling tiles and extensive damage to the roof.
Wind Damage - TSA was hired to investigate the damage to the concrete tilt walls following a severe wind event.
A repair design was provided following the investigation.
Impact Damage - TSA was hired to investigate the extent of damage to the building following a truck hitting it. The wall and column were both checked for structural damage.
Freeze Damage - TSA investigate the single ply roof of the store after a weather event with freezing temperatures. Bear claw cracks and other significant damage from the event was found.
Parking Garage - TSA was hired to investigate the distress in the parking garage. This included distress in concrete from cracking and an evaluation of the bearing pad. TSA was also asked to provide a repair design for this garage.
Parking Garage - TSA was hired to investigate the distress in the parking garage. This included distress in concrete from cracking and an evaluation of the bearing pad.
Parking Garage - TSA was hired to investigate the distress in the parking garage. This included distress in concrete from cracking and an evaluation of the bearing pad.
Impact Damage - TSA was hired to investigate the damage to this residence after a tree had impacted the building during a severe weather event.
An investigation of the including the exterior, interior, roof, and floor was performed to understand the extent of the damage caused from the impact.
Wind Damage - TSA was hired to investigate the damaged warehouse caused by high wind speeds. The roof was blown off and multiple steel joists were damaged as a result.
An interior investigation was performed to determine the extent of the joist damage and provide repairs for the damaged joists.
Foundation Distress - TSA performed an exterior and interior investigation of the office to asses damages as well as an elevation survey to understand the issues with the foundation.
After Hurricane Ida, a machine shop was dealing with water intrusion issues at the metal roof membrane, putting their expensive machinery at risk.
TSA’s investigation included infrared technology and leak mapping of the water intrusion locations at the interior. This data helped identify distress of the building envelope during the exterior and roof inspection.
