Experimental research on seismic behavior of recycled concrete frame under varying cyclic loading

Abstract

A study is conducted on the seismic behavior of one natural concrete frame and two recycled concrete frames with 100% recycled coarse aggregate whose scales are 1:2 entirely, and a comparative study is conducted under low-reversed cyclic lateral loading and different vertical loading. This work aims to estimate the failure mechanism, hysteresis loops, displacement ductility, deterioration of strength and stiffness and energy dissipation of recycled concrete frames under low-reversed cyclic loading as well as the influence of different vertical loading. Analysis on the basis of the experiment proves that it is entirely feasible to apply recycled concrete to practical engineering for the sake of its good seismic behaviors. Theoretical base is provided for further study and practical application of recycled concrete structure.

Experimental and numerical study on seismic performance of steel reinforced recycled concrete frame structure under low-cyclic reversed loading

“…The equivalent viscous damping coefficient h e of SRRC frame is obtained by equation (1), in which h ey = 0.10 represents the yield point, h ep = 0.18 represents the peak point, and h eu = 0.28 represents the ultimate point. Literature (Sun et al, 2006) discussed the seismic performance of RAC frame and presented the equivalent viscous damping coefficient h e . Conclusions can be drawn out that the h e is between 0.16 and 0.18 at the peak point and 0.22–0.30 at the ultimate point.…”

Seismic Performance Target and Fragility of Masonry Infilled RC Frames under In-Plane Loading

“…Research Parameters Xiong (2013) [28] 4 axial compression ratio, opening Sun, et al (2005) [29] 1 masonry material Shi, et al (1996) [27] 1 opening Angel, et al (1994) [30] 5 in-plane damage Cavaleri, et al (2014) [31] 1 masonry material Chiou, et al (2015) [32] 2 Height, axial compression ratio Colangelo (2005) [33] 6 in-plane damage Haider (1995) [34] 3 in-plane damage Mansouri, et al (2014) [ [32] 2 Height, axial compression ratio Colangelo (2005) [33] 6 in-plane damage Haider (1995) [34] 3 in-plane damage Mansouri, et al (2014) […”

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“…Nowadays, the total amount of construction waste is equal to 30-40% of municipal waste amount and it is increasing yearly and has formed the phenomena of garbage-surrounded city. Severe pollution would be produced to the land, water, air if effective measures were not taken [4]. In recent years, some research achievements have been acquired on the filling of construction waste.…”