Civil Engineering Reference
In-Depth Information
b
Figure 6.1
Universal panel tester at the University of Houston
Hsu (1995, 1996) resulted in an improved softened coefficient as a function of principal tensile
strain ¯
ε
1
(see Section 6.1.7.1).
In 1995, a servo-control system was installed on the UPT (Hsu, Zhang and Gomez, 1995)
so that strain control tests could be performed. Using this equipment, Zhang and Hsu (1998)
experimented with RC 2-D elements made of high-strength concrete up to 100 MPa. They
