（沈阳铝镁设计研究院有限公司, 沈阳 110001）

[摘要]  根据国内某氧化铝厂铝土矿堆场的铝矿干料棚的工艺布置和使用要求，比较分析混凝土排架结构、门式刚架和空间钢管桁架三种结构形式针对该工程可行性的一些要求，用PKPM 2010系列软件对门式钢架和空间钢管桁架进行计算，比较两种结构形式的优缺点，从而选取空间钢管桁架结构为最终结构方案，达到结构可靠、施工简单、经济合理的目的，采用SAP2000三维通用结构分析设计程序进行校核，并提供相关重要设计节点供同行和相关人士借鉴应用。

[关键词]  大跨度，钢平台，门式刚架，空间钢管桁架，

中图分类号：TU3911

作者简介：邸思鸿，工程师，Email:dsh@sami.com.cn。

Study and design of structural scheme for the dry material shed of the preblending bed

Di Sihong

(Shenyang Aluminum and Magnesium Engineering and Research Institute Co. , Ltd. , Shenyang 110001, China)

Abstract: According to the technological layout and application requirement of the dry material shed of the preblending bed for domestic aluminum plant, comparison analysis the RC bent structure, and portal frame and space tubular truss for the engineering feasibility of some requires, using the PKPM 2010 series software to calculate portal frame and space tubular truss, compared two species structure forms of the advantages and disadvantages, thereby that choice the space tubular truss as the final structure for the program, achieved the aim of structural reliability , simple construction and economic rationality. The finite element software SAP2000 is adopted to check the result, and provides some important joint design of reference and adopted for the fraternities and the persons concerned.

Keywords: large-span; steel platform; portal frame; space tubular truss