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本文按弹塑性工作原理分析木结构螺栓连接变形发展的不同阶段,依此定义螺栓连接的极限状态;根据极限状态的平衡条件和变形条件确定沿螺栓长度的承压应力分布图形;按具有代表意义的单剪连接取脱离体分析,并采取必要和允许的近似,导得螺栓弯曲承载力计算公式.与此同时阐述了《工作原理及计算公式》一文与《简化计算法》和《推导和讨论》二文在上述问题中所存在的分歧,以及由此而产生的研究结果上的差异.
This paper analyzes the different stages of the bolt connection deformation development of the wooden structure according to the elastic-plastic working principle, and defines the limit state of the bolt connection; according to the equilibrium conditions and deformation conditions of the limit state, the bearing stress distribution pattern along the bolt length is determined; The single shear connection is taken from the analysis of the debonded body, and the necessary and permitted approximations are taken to derive the calculation formula for the bearing capacity of bolts. At the same time, the paper “Working Principles and Calculation Formulas” and “Simplified Calculation Method” and “Derivation and Discussion” are explained. The divergence between the two issues mentioned above and the resulting differences in research results.