建筑结构学报2024，Vol.45Issue(3)：43-51,9.DOI:10.14006/j.jzjgxb.2023.0063
框拼式竹管网格结构体系及工程实践
Frame-unit prefabricated bamboo culm lattice structure system and engineering practices
摘要
Abstract
In order to address issues such as poor durability of bamboo tubes leading to a short lifespan of traditional bamboo construction,weak performance of traditional bamboo culm structural joints,and high construction costs of modem bamboo culm spatial structures,a new approach was proposed.This approach involves a frame-unit prefabricated bamboo culm lattice structure system,composed of affordable standard fasteners connected straight bamboo culms.One key feature is that all joints require only two bamboo culms to connect,providing ample reinforcement space in the joint area.The fabrication process for planar polygonal frame units is straightforward,and the use of bolted connections makes the assembly process of the structure quick and convenient.Construction positioning is greatly simplified,as it only requires control of the vertical coordinates at the corner of the frame unit,reducing the complexity of construction for complex curved structures.The lifespan of structure can be extended by replacing deteriorated frame units in situ.This system has been proven feasible and reasonable through the construction of cylindrical,spherical,and hyperbolic paraboloid form buildings.Two enhanced structural forms,stacked and truss lattice structures,were proposed,and their effectiveness in improving structural load-bearing capacity and stiffness has been demonstrated through component loading tests.It is emphasized that in the development of new structural systems,increasing the level of industrialization in the production process and reducing costs in all construction phases are crucial for widespread application.Additionally,it is noted that the establishment of bamboo culm structural analysis and design theories will face critical challenges related to material nonlinearity,geometric nonlinearity,and interface contact.关键词
框拼式竹管网格结构/节点形式/多边形框单元/结构安装/延长使用寿命/结构增强方法Key words
frame-unit prefabricated bamboo culm lattice structure/joint form/polygonal frame unit/structural assembly/building service life prolongation/structural enhancement method分类
建筑与水利引用本文复制引用
卓新,董石麟..框拼式竹管网格结构体系及工程实践[J].建筑结构学报,2024,45(3):43-51,9.基金项目
国家重点研发计划(2017YFC0703500). （2017YFC0703500）
