. net platform is a brand - new development framework , in which it supply some windows service and a brand - new api programming interface of cooperation and integrated much back - end technology of 1990s of microsoft . the elements that . net merged into include : com + component service , the web developing framework , xml and ood , the support to new web service protocol ( such as soap , wsdl and uddi ) , and the idea taking internet as the centre Net技术, . net平台是一个全新的开发框架,它具有与windows服务和api合作的全新编程接口,集成了microsoft公司20世纪九十年代后期的许多技术。 . net中融合的元素包括: com +组件服务、 web开发框架、 xml和面向对象设计,对新的web服务协议(如soap , wsdl和uddi )的支持,以及以internet为中心的理念。
Fifthly , based the established model of chloride induced rebar initiation corrosion time and the model of concrete cover cracking time due to corrosion products volume expanding , a probability based model is established for service life predicting of reinforced concrete structure in chloride environment . the prediction model regard corrosion induced concrete cover cracking matching the cracking limitation as durable limit state , or as termination of the component service life 第五,根据已建立的氯离子侵入混凝土导致钢筋初锈的时间计算模型和混凝土中钢筋锈蚀膨胀导致混凝土保护层开裂的时间计算模型,以保护层因锈蚀胀裂,裂缝宽度达到宽度限制值为耐久性极限状态,建立基于概率极限状态分析方法的构件耐久寿命预测方法。