以某新建重型钢结构厂房为背景工程，利用STPJ软件建立不同截面的刚架模型，对背景工程进行分析，得到一个合理的计算模型，找出了设计当中的一些基本规律，以期通过优化的设计降低工程造价。%By taking a newly built heavy steel structure plant as background engineering, utilizing STPJ software to establish the rigid frame structure model of different sections and doing analysis of the background engineering, gets a reasonable calculation model and finds out some basic rules in design, so as to lower the project costs through the optimizing design.
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