Experimental Study of Moso Bamboo to-Steel Connections with Embedded Grouting Materials

Abstract

Moso bamboos have attracted excessive attention as a renewable green building material to the concept of sustainable development. In this paper, the 20 bolted Moso bamboo connection specimens with embedded steel plates and grouting materials were designed according to connection configurations with different bolt diameters and end distance of bolt holes, and their bearing capacities and failure modes were analyzed by static tension tests. According to the test results of all connectors, the failure modes of the specimens are divided into four categories, and the effects of bolt diameter and bolt hole end distance on the connection bearing capacity and failure mode are analyzed. The test results show that the deformation and failure process can be divided into four stages. The main influence factor of connector bearing capacity is bolt diameter. Connectors can be divided into four failure modes, and brittle failure can be avoided by adopting certain structural measures. Filling with grouting material can improve the bearing capacity of joints. Due to the large variability of bamboo, further experiments are needed.

Advances in Connection Techniques for Raw Bamboo Structures – A Systematic Review

“…One addition made by the authors is the introduction of hybrid connections. The recently proposed raw bamboo connections combine elements from traditional and modern connections [51], or integrate multiple modern connections [17,20,23,44,[74][75][76], or blend modern connections with supplementary connection components [26,[40][41][42]44,49,[62][63][64][65]68]. Hence, they are termed hybrid connections.…”

“…Nie et al [64] investigated the failure modes of bolted bamboo connections with embedded steel plates and grouting materials, finding that the diameter of the bolt significantly influences connector bearing capacity, and that filling with grouting material can enhance joint strength.…”

Advances in Connection Techniques for Raw Bamboo Structures—A Review

“…However, the overall performance of bamboo structures is significantly influenced by their connection systems [19]. Joint failure jeopardizes the safety and stability of the entire bamboo structure and may result in collapse [70]. Therefore, the design of joints or connections is integral to structural integrity.…”

“…One addition made by the authors is the introduction of hybrid connections. The recently proposed raw bamboo connections combine elements from traditional and modern connections [57], integrate multiple modern connections [20,23,26,50,[80][81][82], or blend modern connections with supplementary connection components [29,[46][47][48]50,55,[68][69][70][71]74]. Hence, they are termed hybrid connections.…”

“…Nie et al [70] investigated the failure modes of bolted bamboo connections with embedded steel plates and grouting materials, finding that the diameter of the bolt significantly influences connector bearing capacity, and that filling with grouting material can enhance joint strength.…”