水泥熟料库十字形插板连接支座节点承载力试验研究  

Experimental study on the bearing capacity of cross shaped plug-in plate connection support nodes in cement clinker storage

作　　者：李运军 Li Yunjun(China National Building Materials(Hefei)Steel Structure Technology Co.,Ltd.,Hefei 230051,China)

机构地区：[1]中建材(合肥)钢构科技有限公司,安徽合肥230051

出　　处：《水泥工程》2024年第3期90-92,共3页Cement Engineering

摘　　要：熟料库顶钢结构不同于民用或其他钢结构,其顶部拉链机水平拉力较大,导致底圈支座附近杆件内力较大,支座节点成为熟料库网架设计的关键环节。本文将熟料库焊接球支座改良为十字形插板形式,并对截面高度、插板厚度、钢管伸入插板长度等参数制定了4组试件,并制定试验方案,对其承载力进行了试验研究,得出了以下结论:插板厚度、钢管伸入插板长度等参数对节点承载力的影响不大,十字形插板截面大小对承载力影响较大。试验破坏模式主要表现为十字形插板处焊缝破坏,在实际工程中应将十字形插板节点焊缝设计作为关键工作。The top steel structure of the clinker silo is different from civil or other steel structures.The horizontal tension of the top zipper machine is large,which leads to a large internal force of the members near the bottom ring support.The support node becomes a key link in the design of the clinker silo grid.This article improves the welding joint ball support of the clinker warehouse into a cross shaped insert plate form,and develops four sets of specimens for parameters such as section height,insert plate thickness,and steel pipe extension length into the insert plate.Experimental research is conducted on its bearing capacity,and the following conclusions are drawn:the thickness of the insert plate and the length of steel pipe extension into the insert plate have little effect on the node bearing capacity,while the size of the cross shaped insert plate section has a significant impact on the bearing capacity.The main failure mode of the experiment is the failure of the weld seam at the cross shaped insertion plate,and in practical engineering,the design of the weld seam at the cross shaped insertion plate node should be a key task.

关 键 词：熟料库 钢结构支座 节点试验 

分 类 号：TQ172.6[化学工程—水泥工业]