建筑结构安全等级二级，设计使用年限为50年。
The structural safety class is second class, design working life is 50 years.
本工程结构安全等级为二级，设计使用年限为50年。
The safety rating of the engineering structure is grade2and its designed service life is50years.
本工程建筑结构安全等级为二级，设计使用年限为50年。
The safety class of building structure of this project is II and the design working life is 50 years.
混凝土结构的耐久性设计应根据环境类别和设计使用年限进行设计。
The durability design of the concrete structure should be done according to the environment types and the designed serviceable life.
介绍国内外结构尤其是英国海工结构的设计使用年限及耐久性设计概况。
This paper introduces the design working life and durability design for structures in China and abroad, esp.
分析了结构可靠度理论的特点，揭示了设计使用年限是结构可靠度的时间特征。
Structural reliability characters are analyzed, and it is shown that working life is characters of structural reliability in time.
刚刚过去的一年中有两颗坠落，剩下的13颗中，有12颗已经超过了设计使用年限。
Two of them went down in the past year, and of the remaining 13, 12 are past their design lifetimes.
应根据不同设计使用年限活荷载的超越概率等于常规设计荷载超越概率的原则确定活荷的载标准；
The live load should be determined that the exceedance probabilities of live load for different design working life equal to that for conventional design loads.
为了使建筑物达到规定设计使用年限，必须采取充分的措施保护每个构件免受相关环境作用的影响。
P in order to achieve the required design working life of the structure, adequate measures shall be taken to protect each structural element against the relevant environmental actions.
但是由于各种原因，我国早期修建的水泥混凝土路面使用状况不佳，使用寿命大大低于设计使用年限。
But due to various reasons, the using situation of China's early built cement concrete pavement was not well, its service life was greatly lower than the limit of the designed using years.
耐久长——钢桁架、防腐钢网与无机芯材的结合，有效抵抗酸、碱侵蚀，设计使用年限与钢筋混凝土相同。
Durablity - steel truss, the combination of anti-corrosion steel mesh and inorganic core material, effectively resistance to acid and alkali erosion, with the same design life of steel-concrete.
确立建筑物所需的保护措施时要考虑到它的预期用途，设计使用年限(见en 1990)，以及维护计划和结构所受作用。
P the required protection of the structure shall be established by considering its intended use, design working life (see en 1990), maintenance programme and actions.
为了保证结构在设计寿命期内的安全使用，有必要对结构进行整体疲劳分析，评估其在设计年限内的疲劳损伤程度。
In order to ensure structural safety in the design working life, it is necessary to carry out integrity analysis of fatigue and to evaluate the degree of fatigue damage on the structure.
随着我国部分房屋建筑使用年限接近设计期限，或者说结构进入老化阶段，结构的健康状况和安全性评估逐步引起人们的关注。
As service life of buildings approaching to projected life, or their structures entering aging stage, people are gradually concerned about the health status of the structure and security estimation.
第十四条城市道路实行工程质量保修制度，保修期为设计文件规定的该工程的合理使用年限。
Article 14 the guarantee system of projection quality shall be practiced for the urban roads. The guarantee period shall be the project's reasonable useful life stipulated in the design document.
按照超过12年的使用年限来设计，具体的能耗与使用年限中总能耗的相比，变得无关紧要了。
With a design life exceeding 120 years, the embodied energy became insignificant compared with the 'in use' energy over the lifetime of the building.
按照超过12年的使用年限来设计，具体的能耗与使用年限中总能耗的相比，变得无关紧要了。
With a design life exceeding 120 years, the embodied energy became insignificant compared with the 'in use' energy over the lifetime of the building.
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