The optimum programme can be used to design four-connecting lever pneumatic roof-window mechanism of all kinds of multi-span plastic greenhouses by changing load and structure parameters.
通过改变载荷参数和结构参数，优化模型可用于其它塑料温室的气动四连杆天窗机构的设计。
Underwater placement of bridge's platform and cradle construction method for multi-span continuous box-girder structure constitute the construction feature of Fuyang bridge in Zhejiang province.
以水下浇筑大桥承台和采用挂篮法施工多跨连续箱梁结构是浙江富阳大桥工程的重头戏。
Performance based assessments are carried out on semi - continuous frames, multi - story structure and large- span arched frame exposed to localized fire.
对承受局部火灾的半连续框架、多高层及大跨拱形桁架采用了基于性能的分析方法。
This paper puts forward a new system of multi-prestressed steel lattice shell structure for large span space roof.
本文对大跨度空间屋盖提出了一种多次预应力钢网壳结构新体系。
A long span reinforced concrete frame structure is presented for the multi floor or high building, which is achieved through setting attached shear bending bars.
针对多层或高层建筑，提出一种大跨度钢筋混凝土框架结构。
Illustrating that as to this multi-span large frame structure, it is relatively right to adopt plane finite element for calculation.
通过试验说明，对于大型框架结构，采用平面有限元进行计算较为合理。
The new part is built by reinforcement concrete structure, while the steel truss is installed for large-span roof and floors, thereby, two models formed a multi-tube with part of frame structure.
新建部分主体结构采用钢筋混凝土结构，楼层及屋顶大跨部分采用钢桁架结构，形成多筒体-部分框架结构体系。
The new part is built by reinforcement concrete structure, while the steel truss is installed for large-span roof and floors, thereby, two models formed a multi-tube with part of frame structure.
新建部分主体结构采用钢筋混凝土结构，楼层及屋顶大跨部分采用钢桁架结构，形成多筒体-部分框架结构体系。
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