engleski

EXPERIMENTAL STUDIES ON MECHANICAL PROCESS OF RPC ARCH MODELS UNDER IN-PLANE LOAD

Results of experiments on two reactive powder concrete (RPC) arch models, carried out with concentrated loads at quarter-span are discussed in the paper. Load-displacement curves, cracks, failure modes and ultimate load-carrying capacity of the arches were analyzed and compared with results obtained on reinforced concrete (RC) arch models. Experimental results show that the behaviour of RPC arches is similar to those of RC arches. The RPC arches also fail due to the mechanism formed by four plastic hinges caused by cracks in tensile areas. But the initial crack load, reinforcement yielding load and ultimate load of RPC arches are 2 to 3 times as high as those of RC arches ; and the largest crack width in RPC arches is only forty percent of that of RC arches.

reactive powder concrete; arch; models

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