Abstract
To study mechanical behaviors of shear walls built with precast two-way hollow slabs, two shear walls with different details of hollow slabs were quasi-statically tested under low cyclic loading. The failure mode was analyzed, which vertical macro-cracks appeared on walls due to the details of hollow slabs. Brittle shear failure can be avoided in terms of the failure behaviors evolved from integral wall to the combination of wall and columns. Test results also show that that dimension of transverse holes can affect compressive capacity of the walls when it is larger than that of longitudinal holes in the hollow slab.
Highlights
To meet the demands of housing industrialization in China, assembled monolithic concrete structure is usually adopted [1, 2]
Precast two-way hollow slab shear wall (PTHSW) structure is a new type of assembled monolithic concrete shear wall structure, whose assembly unit is a precast two-way hollow slab with longitudinal and transverse crossing through the holes
Two PTHSWs with different details of hollow slabs were quasi-statically tested under low cyclic lateral loading
Summary
To meet the demands of housing industrialization in China, assembled monolithic concrete structure is usually adopted [1, 2]. After horizontal and longitudinal reinforcement was arranged in the transverse and the longitudinal holes respectively, concrete was poured into the bidirectional holes together with the reinforcement cages of boundary members to form an integral structure. Two kinds of hollow slabs A and B are designed to study the effect of different details of the slabs on mechanical behaviors of PTHSWs. The bidirectional holes of slab A are all circular, while the diameter of transverse holes (89 mm) is less than that of longitudinal holes (140 mm). For arranging the horizontal reinforcement more conveniently, the transverse holes of slab B are designed square (the longitudinal holes remain circular), the side-length of the transverse holes (120 mm) is larger than the diameter of the longitudinal holes (104 mm)
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