排序方式: 共有8条查询结果,搜索用时 171 毫秒
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延安火车站无站台柱钢结构雨棚设计采用拱形张弦梁主体结构,介绍了工厂分段制作,拉索敷设、张拉、内力和变形检测,吊装、就位和上弦管内灌浆过程中采取的质量和安全保证措施,确保张弦梁变形和内力控制在规范允许范围内,节省了工期,取得了良好效果。 相似文献
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王兆强 《国防交通工程与技术》2008,6(3):41-41
2008年2月26日,云南蒙自新街至河口——连接越南老街省高速公路的新河高速全线贯通。新河高速公路为国道二连浩特至河口公路最后一段,是云南连接东盟的首条高速公路。 相似文献
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This paper presents results of three tests carried out to study the mechanical behavior of foot joints used in the tower boiler steel frame. Each foot joint consists of a box column and a box brace. These three specimens have different connection types or different details of stiffeners. The tests are carried out by using the large multi-function structural experiment system WAW-1000J. The load-displacement curves and the strain distribution are measured during the tests. The mechanical behavior of foot joints under adverse load cases is analyzed. The safety of these three specimens under design load is assessed. The strength and deformation of different joints are compared. The results indicate that connection types or details of inner stiffeners have effects on strength and failure mode and that the specimen with end-plate connection can optimize the strain distribution along the height of brace web and can change the force transfer mechanism between column and brace. In addition, a finite element model of the specimen is conducted and numerical results generally agree well with the test results. The work in this paper provides a base for further analysis on the performance of joint used in the tower boiler steel frames. 相似文献
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自升式钻井平台的海水管路系统较传统船舶繁复,平台中相关设备布置分散,对海水的需求工况差异大,一般的管路系统设计计算方法已无法满足设计要求。采用AFT流体分析软件,针对钻井平台的整个管网系统的设备供水点,结合各种工况及相应的技术要求,初步设计管网系统的流量分配,进行流体平衡分析,对流量不足的供水点进行优化设计并验证,取得符合相应设备对应工况需求的流量分配。AFT软件深化了钻井平台海水系统的设计流程,提高了工效并节约工程成本。 相似文献
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