Shenzhen ruihe decoration engineering co . , ltd . , founded in 1992 , is a national frade - a building decoration project construction and design enterprise with the registered capital of rmb 43 million yuan and undertakes projects as exterior and interior decoration product design and construction , curtain wall design and construction , mechanical and electrical equipment installation , steel structure project , firefighting facilities project and building intelligentization project . as an executive director of china building decoration association and consecutive three years and as the excellent member of the above two associations for several times and awarded lu ban prize , national building decoration prize and prizes of provincial and municipal levels 资质范围涵盖：室内外建筑装饰设计与施工建筑幕墙设计与施工机电设备安装工程钢结构工程消防设施工程建筑智能化工程等。连续三年被评为全国建筑装饰待业百强企业，是中国建筑装饰协会常务理事单位深圳市装饰行业协会常务理事单位，多次被评为中国建筑装饰协会优秀会员单位和深圳市装饰行业协会优秀企业，同时获得了多项鲁班奖全国建筑工程装饰奖及省市级奖项。
Limited company of adornment of wall of hua guang act of lukewarm state city is with production , design , construction wall of large glass act , granite does the wall that hang act , aluminous model the building act wall such as board act wall and daylighting top , gauze wears project of project of roof tuss of project , light qualitative steel , steel structure , 97 people of existing worker , among them title of high school class 48 people , fixed assets many yuan 500 温州市华光幕墙装饰有限公司是以生产、设计、施工大型玻璃幕墙、花岗岩干挂幕墙、铝塑板幕墙等建筑幕墙及采光顶、金属网架工程、轻质钢屋架工程、钢结构工程、铝合金门窗、塑钢门窗等林型金属结构工程以及建筑内外墙涂料施工的专业公司,现有职工97人,其中高中级职称48人,固定资产500多万元。
The main work of this paper was as fellows : ( 1 ) generalized the development of pre - stressed steel structure in our nation and abroad , and pointed out the main problem in practice ; ( 2 ) presented the mechanism of pre - stressed steel structure and revealed its applicable range ; ( 3 ) established the optimization design model for pre - stressed steel structure , which accounts for constraints on stresses and displacements of structure ; ( 4 ) brought forward the optimization design method , which combined linear programming and the principle of full restriction , through which we can obtain the magnitude of each time pre - stress and the optimized sections of each members of structure ; ( 5 ) analyzed the best times of pre - stress and pointed out that 2 ~ 3 times is preferable ; ( 6 ) conducted optimization design on large - space steel roof , horizontal parallel steel truss with local cables , horizontal parallel steel truss with global cable , and ultra - static steel truss , the result of which indicated that the multiple pre - stress structure is very economic ; ( 7 ) compared different schemes of cable placement for horizontal parallel steel truss , and the results showed that the local cable only unloaded the second girders , but had no response on the first girders and stomach poles , while global cable could unload the second girders and the stomach poles outside of turning point of cable , thus proving that global cable is more economic than local - cable 本文的主要工作是：对国内外预应力钢结构的发展历史及现状作了综述和总结，指出当前预应力钢结构工程实践中存在的主要问题；阐述了预应力钢结构的受力机理，并指出预应力钢结构的适用范围和特点；在考虑结构应力和变位约束的条件下，建立预应力钢结构优化设计模型；提出多次预应力钢结构优化设计方法和步骤，采用线性规划和满约束准则相结合的优化方法，可优化设计出施加的每一级预应力的大小，并得到结构各部分的优化截面；对多次预应力最佳的施加次数作了分析，并建议以2 3次为宜；为验证文中理论和方法，分别对大跨多次预应力钢屋架、局部布索的水平平行弦钢桁架、整体布索的水平平行弦钢桁架和局部布索的超静定钢桁架等算例进行了优化设计，经济效益明显；对水平平行弦钢桁架的几种施加预应力的方案进行比较，对于局部布索，预应力只对下弦起到卸载作用，对上弦和腹杆基本不起作用；而整体布索预应力除对下弦卸载外，对索折点以外部分腹杆也起到卸载作用，经济效益好于局部布索。
By framing the developing strategy of nfssec , we can get some keys to finding some principals and to sum up a basic mode that is considered when small - and - middle - sized companies build and choice they strategies . the results in the studies is hoped to help these companies set down a clear , suitable and different to the large companies " competitive strategy 通过对南宁飞捷钢结构工程有限公司发展战略的制定，我们可以从中获得一些启示，找出中小企业制定战略时应考虑的几个主要原则，并归纳出一个基本的战略选择模式，以期能为广大中小企业制定一个有别于大企业的、明确的、合适的竞争战略提供一些帮助。
It also has the real estate construction general contracting grade b qualification , machinery equipment installation project specialized contracting grade 1 qualification , crane equipment installation project t specialized contracting grade a qualification , steel structure project specialized contracting grade b qualification , electric power debugging second class certificate , first - class metal lab , civil engineering lab and welding training center and china imports & exports enterprise qualification certificate 同时具有房屋建筑工程施工总承包贰级、机电设备安装工程专业承包一级、起重设备安装工程专业承包一级、钢结构工程专业承包二级、电力工程调试乙级、一级金属试验室、一级土建试验室、一级焊工考核培训中心和中国进出口企业资格证。
