BS EN 1998-3-2005 欧洲法规 8.抗震结构的设计.第3部分:建筑物的评估和加固

标准号：BS EN 1998-3-2005
中文标准名称：欧洲法规 8.抗震结构的设计.第3部分:建筑物的评估和加固
英文标准名称：Eurocode 8. Design of structures for earthquake resistance - Part 3: Assessment and retrofitting of buildings
标准类型：P15
发布日期：2006/1/11 12:00:00
实施日期：2006/1/11 12:00:00
中国标准分类号：P15
国际标准分类号：91.120.25
引用标准：EN 1990;EN 1998-1
适用范围：(1) The scope of Eurocode 8 is defined in EN 1998-1: 2004, 1.1.1 and the scope ofthis Standard is defined in (2), (4) and (5). Additional parts of Eurocode 8 are indicatedin EN 1998-1: 2004, 1.1.3.(2) The scope of EN 1998-3 is as follows:− To provide criteria for the evaluation of the seismic performance of existingindividual building structures.− To describe the approach in selecting necessary corrective measures− To set forth criteria for the design of retrofitting measures (i.e. conception,structural analysis including intervention measures, final dimensioning of structuralparts and their connections to existing structural elements).NOTE For the purposes of this standard, retrofitting covers both the strengthening ofundamaged structures and the repair of earthquake damaged structures.(3) When designing a structural intervention to provide adequate resistance againstseismic actions, structural verifications should also be made with respect to non-seismicload combinations.(4) Reflecting the basic requirements of EN 1998-1: 2004, this Standard covers theseismic assessment and retrofitting of buildings made of the more commonly usedstructural materials: concrete, steel, and masonry.NOTE Informative Annexes A, B and C contain additional information related to the assessmentof reinforced concrete, steel and composite, and masonry buildings, respectively, and to theirupgrading when necessary.(5) Although the provisions of this Standard are applicable to all categories ofbuildings, the seismic assessment and retrofitting of monuments and historicalbuildings often requires different types of provisions and approaches, depending on thenature of the monuments.(6) Since existing structures:(i) reflect the state of knowledge at the time of their construction,(ii) possibly contain hidden gross errors,(iii) may have been submitted to previous earthquakes or other accidental actions withunknown effects,structural evaluation and possible structural intervention are typically subjected to adifferent degree of uncertainty (level of knowledge) than the design of new structures.Different sets of material and structural safety factors are therefore required, as well asdifferent analysis procedures, depending on the completeness and reliability of theinformation available.