For a truss with more than one redundant bar, more than one release will be required to obtain the primary frame .
对于有一个以上多余杆的桁架要得到基本体系，就要放松一个以上的约束。
Under the premise of the weight of the entire truss structure satisfying certain constraints, it achieved the minimum flexibility by optimizing the cross-sectional area of the bar.
采用的力学准则为满应变设计准则； 在整个桁架结构重量满足一定约束的前提下，通过优化各杆件截面积，达到整体柔度最小。
Finally, the efficiency of proposed approach is demonstrated in solving two-bar truss optimization problem.
最后以两杆桁架多目标优化问题为例，说明了该方法的应用。
The paper discusses the application of beret truss bearers in prestressed concrete process tie bar arch bridge construction after mechanical calculation.
通过力学验算，初步探讨组合式贝雷桁架片托架在预应力砼系杆拱桥梁施工中的应用。
The main parameters considered are height of the cable truss, area of cross section of tensile bar, pre-tension of tensile bar and thickness of glass panel.
通过有限元程序对点支式玻璃幕墙索桁架支承体系中索桁架结构高度、拉杆截面积、拉杆预拉力和玻璃面板厚度对其受力性能的影响进行了研究。
It is pointed out that adding column for truss can strength the cantilever, and adding attached bar can reduce unfavorable load of tower crane to cantilever truss.
指出可以通过对桁架增加立柱的方式对悬臂进行加固；另外，附着杆的增加可以降低起重机对下部悬臂桁架的不利荷载。
The post-tensions prestressed beams are disposed for large space such as exhibition halls, reporting halls and studios, while the steel truss floors are formed by steel bar truss deck.
根据材料优缺点、施工特点等进行多方案分析比较，确定展厅、报告厅、演播室等楼盖结构选用后张有粘结预应力混凝土梁，钢桁架结构楼层采用钢筋桁架组合楼板。
This paper presents the construction technology of steel bar truss concrete slab.
本文主要介绍钢筋桁架混凝土现浇板的施工技术。
In the design of three-bar truss structure commonly used for engineering, the optimization analysis is carried out for the structure by finite element software ANSYS6.
在对工程上常用的三杆桁架结构的设计中，利用大型有限元分析软件ANSYS6。
Finally, a numerical example of the ten bar truss was presented to demonstrate reliability and feasibility of GA's application.
最后通过十杆平面桁架的数值例题来验证遗传算法应用的可行性和有效性。
The viscoplastic balance of a symmetric three-bar truss supporting the load has been analyzed.
对对称三杆桁架承受载荷后的弹粘塑性平衡问题进行了分析。
A numerical example of a ten-bar truss was given to demonstrate the validity and feasibility of CGA in its application, and it is found that the optimized results of CGA are superior to SGA and IGA.
通过十杆平面桁架的数值算例来验证组合遗传算法应用的可行性和有效性，组合遗传算法的优化结果也远好于标准遗传算法和改进遗传算法。
A numerical example of a ten-bar truss was given to demonstrate the validity and feasibility of CGA in its application, and it is found that the optimized results of CGA are superior to SGA and IGA.
通过十杆平面桁架的数值算例来验证组合遗传算法应用的可行性和有效性，组合遗传算法的优化结果也远好于标准遗传算法和改进遗传算法。
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