Abstract: A minimum mesh reinforcement, called the shrinkage and temperature reinforcement, has been required by ACI design code for 92  years to attain ductility with no formation of large localized cracks. The required steel ratio, ...

Abstract: The direct shear behavior of concrete sections is evaluated using push-off specimens. The experimental program consists of three strain rates, ε˙=10−7  s−1, ε˙=10−5  s−1 and ε˙=10−3  s−1, that are used to understand how ...

Abstract: The size effect on the strength of reinforced concrete (RC) beams flexurally strengthened by surface bonded sheets of fiber-reinforced polymer (FRP) is studied. As the failure is neither ductile nor brittle, but quasibrittle, ...

Abstract: The recently conceived gap test and its simulation revealed that the fracture energy Gf (or Kc, Jcr) of concrete, plastic-hardening metals, composites, and probably most materials can change by ±100%, depending on the ...

Abstract: In the existing database on shear load capacity, tests of very large beams are scarce. Valuable additions to the database have recently been made in 2021 at the University of California, Berkeley (UCB), and in 2015 at the ...

Abstract: After sketching the history of the size effect models for the shear strength of reinforced concrete (RC) in design codes, the energy-based size effect law (SEL), recently incorporated into the American Concrete Institute ...