Abstract
This study investigates a mechanical behavior of T-headed bar for anchorage when it is applied to thin cover depth place. Firstly, an experimental program has been carried out. Five cylinderical specimens were subjected to uniaxial tensile loading. Main parameters include cover depth (30mm and 60mm), anchorage-end type (with and without T-headed end), and bond. The results show that fracture pattern is different by cover depth and anchorage-end type. Secondly, simulation of the specimen response was performed using the two and three-dimensional numerical analysis, Rigid Body Spring Model (RBSM). The analysis results simulate the crack development of the specimens during loading. Three dimensional analysis can reproduce the longitudinal cracking pattern at failure though it requires a calculation time. Furthermore, it is useful to evaluate the internal stress carrying mechanism nearby the anchorage end.
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