Experimental Study on the Bending Properties of Grouting Butt Joints Reinforced by Steel Plate Embedded in Bamboo Tube

The construction of grouting butt joints bamboo tubes is simple and efficient. However, when the joint bent, low tensile strength mortar easily leads to cracking prior failure tube. In this paper, a comparative test bending capacity was performed on reinforced by nonperforated, fully perforated, semiperforated steel plates embedded in obtain load-displacement curves ultimate bearing various specimens. strengthening effect CFRP pasted also studied. results show that opening at end plate beneficial resist slip between plate, while complete section middle conducive making full use plate. Therefore, it best insert with openings without into enhance properties joint, which can make mode change from brittle ductile compression addition, pasting sheets external wall tube helps reduce stress mortar, increasing width increase moment inertia mixture mortar. These two complementary measures are very effective delaying improving joint.