Equivalent analytical modeling of adequate reinforcement noncontact lap splices under monotonic loads

Abstract

Lap splices constructional details are widely used for connecting prefabricated parts. They are usually located in regions where larger inelastic deformation capacity can be expected, such as the base of RC walls and beam-column joints. An equivalent analytical model of adequate reinforcement noncontact lap splices is first proposed in this study. The noncontact lap spliced reinforcement is simplified as continuous reinforcement with variable diameter combined with the equivalent stress-strain law. The method allows for monotonic yield and degradation of tension and compression noncontact lap splices. Parametric analysis is further performed to investigate the influence of lap splices details on the bearing capacity and deformation capacity. Finally, five shear wall finite element models are established to verify the equivalent modeling method. The proposed method can more accurately reflect the deformation capacity and bearing capacity of the noncontact lap splices region.

Experimental study on seismic behavior of precast beam‐column connections under cyclic loading

“…Compared with traditional cast‐in‐place concrete structures, precast concrete structures have many advantages, such as reliable quality control, faster construction progress, and lower cost 1–6 . However, different from traditional cast‐in‐place concrete frame structures, precast concrete structures are reported to be discontinuous and vulnerable to earthquake actions due to their connections between precast elements 7–9 .…”