Cycle behaviour of precast composite wall with different ecological filled blocks

This article aims at experimentally investigating a cycle behaviour of a new lateral force-resisting structural system, that is, precast composite walls with ecological filled blocks. For this purpose, a total of five low cyclic loading tests were conducted for the 1:2-scaled precast composite wall specimens with five different kinds of ecological filled blocks, namely, the wheat straw fibre raw soil–based block, the recycled expanded polystyrene lightweight concrete block, the wheat straw fibre cement–based block, the autoclaved aerated concrete block and the cotton straw block. In the test, the failure patterns, hysteretic loops, characteristic points, skeleton curves, ductility and relative deformation, stiffness degradation and energy dissipation capacity of the tested specimens were obtained and further analysed. The test results show that (1) the failure modes and mechanisms of the tested specimens are primarily affected by the strength of the filled blocks and the connection performance of the conc...