安德固插销式脚手架连接节点的抗弯性能研究

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中图分类号：TU731.2 文献标志码：A DOI： 10.15935/j.cnki.jggcs.202504.0003

AbstractRecent developments have seen widespread adoption of Andger（ADG） scafolding systems in construction.However，recurring structural failures at joint connections have raised significant concerns regarding their safety and stability.This study establishes a semi-rigid finite element model ofADG scaflding joints using ANSYS software，with experimental validation confirming the model’saccuracy.Through numerical simulations，we systematically investigate the influence of four key parameters on joint bending capacity： constitutive material properties of lock pins，pin insertion depth，U-clamp thickness，and pin thicknes.Key findings indicate that bending capacity exhibits a positive correlation withthe yield strength of the pin material.Increased U-clamp thickness enhances both joint bending resistanceand initial rotational stifness.Conversely，pin thickness and insertion depth demonstrate negligible efects on bending performance. These findings provide critical insights for optimizing the structural design of ADG scaffolding systems.

KeywordsADG scaffolding joint，semi-rigid，plug thickness，U-clamp thickness，plug constitutive

0 引言

随着大空间、大跨度建筑物的发展，脚手架的类型越来越多，安德固（ADG）脚手架作为一种新型施工承重支撑体系，因其具有安装方便、结构坚固、自重轻、承载力较强等优点，近些年得到广泛应用，大大提高了施工阶段的安全性和工作效率，如应用于奥林匹克水上公园临时看台、京张铁路工程等（图1）[1]。（剩余11391字）