# Thomas M. Murray Structures Laboratory

The Thomas M. Murray Structures and Materials Laboratory is located on the campus of Virginia Tech. The laboratory includes a wide range of structural and materials testing equipment that can be used to conduct experimental research on full-scale structural components and conduct performance evaluations of civil engineering materials. A total of 17,000 sq. ft. of laboratory and office space is available. Click Here for a map and directions to the lab.

## Description

Central to the experimental capabilities of the structures laboratory is the 3600 sq. ft. (350 m$^{2}$) structural reaction floor. The approximately 30 ft. by 120 ft (9 m x 38 m) floor is constructed with four W36x150 (W920x223) steel beams encased in 3.5 ft (1 m) deep reinforced concrete. The top flanges of the beams are exposed to permit connection of test frames. The troughs also provide locations for hydraulic and electrical lines. Approximately 300,000 pounds (1350 kN) of uplift can be resisted at any given location on the floor.

The structures laboratory is equipped with a variety of loading and data acquisition equipment. Three uniaxial testing machines with capacities of 34 kips (150 kN), 110 kips (500 kN), and 300 kips (1350 kN) are utilized for testing smaller structural assemblages, connections, tension coupons, stub columns and concrete cylinders. Each is a closed-loop servo controlled universal testing machine, along with dedicated computer control and data acquisition. The lab is also equipped with a 3,000,000 lb specialty compression testing frame, which can accommodate specimens up to 8 ft tall.

The materials testing wing of the lab is well equipped for mixing, placing and testing concrete specimens. An IMER Mortarman 750 is capable of producing 22 cu. ft of UHPC every 20 minutes. A custom strand bed is available for pretensioned specimens. The lab owns a vibrating flow table to evaluate UHPC rheology and a Japanese Yolk for measuring flexural toughness of fiber-reinforced concrete.

## Data Acquisition

Data acquisition for test assemblages on the structural reaction floor is principally performed with the use of a six independent computer controlled data acquisition systems. Data acquisition for both static and dynamic testing are available with sample rates in excess of 10,000 samples per second. Additional data acquisition systems and data loggers are available for short-term or long term testing of in-service bridges. Also, ancillary equipment is available in the form of strain indicators and switch and balance units.

## Custom Fabrication

A complete machine shop, staffed by two full-time technicians, is located in the laboratory. The technicians have a wide range of machining and welding capabilities. An electronics technician is available within the Civil and Environmental Engineering Department.

## Partner with us

Whether you’re interested in sponsoring a research project, accessing the structures laboratory, or exploring collaborative opportunities, we are here to help. Contact Dr. Jacques to discuss partnerning with us.
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