中文摘要：

设计了一种钢箍碳纤维布组合节点,可以适应原竹管材的不规则性并对其进行有效接长,采用特定方法成拱,根据需要形成不同跨度的竹拱。为研究采用此连接节点的竹拱在全跨荷载作用下的平面内稳定承载能力、变形性能以及节点的连接性能,制作了2个10 m跨度的竹拱试件并进行平面内稳定承载力试验。试验结果表明:全跨荷载作用下,有平面外侧向支撑的竹拱试件在产生较大的平面内位移后,发生平面内反对称失稳;采用连接节点的竹拱延性好;节点在受荷全过程的连接性能良好,试件失稳后的破坏区域均处于临近节点的竹管部分。试验结果及有限元分析使进一步详细研究此类节点的受力机理、承载性能具有现实意义,同时推动此类节点竹拱结构的工程应用。

英文摘要：

Carbon dioxide in the air is absorbed in the growth process of bamboo, which is beneficial to the purification of air and reducing the content of greenhouse gases in the atmosphere. Energy consumption in manufacturing process of bamboo structure is much less than other kinds of common building structure, such as concrete structure. In addition, bamboo structure can be naturally degraded without adding any pollution to environment when its service expires. Used as building materials, bamboo is beneficial with natural environment in any stages including growth, processing, service and disassemble. Therefore, bamboo is regarded as an eco-material. According to the mechanical properties of bamboo tubes, a new steel hoop-carbon fiber composite joint was designed to connect irregular size of bamboo pieces. With a specific method, the connected long straight bamboo member was curved into the shape of arch and eventually such connection led to form a new bamboo arches which was named as steel hoop-carbon fiber composite joints bamboo arches or SFJ. SFJ bamboo arches possess advantages of simply joints constitution, and much less splitting failure incidence in joint region and can be used in large span and light arch structure such as landscape architectures, roof of buildings, greenhouses, temporary sheds. In general, the shape of large span bamboo arches is much slender than other common structures, and as such it is prone to instable especially when bamboo tube is in the stress state of compression. For this reason, the ultimate state of bamboo arch with enough out-of-plane supports is usually in-plane overall instability. Therefore, it is necessary to carry out reasonable analyses of in-plane stability capacity of SFJ bamboo arches to ensure structural safety. Two 10 meters span bamboo arch specimens were built for static load tests in order to study the ultimate bearing capacity, deformation capacity and connection performance of bamboo arches. Result of tests demonstrated that stress state of most bamboo sections an