07.Foundations_11.08.17INCOMPLETE概论.pptx

基础Foundations GTGP CH. 5 要点Agenda 有关基础的规范 Foundation Codes 开挖 Excavation 锚固的基础/基础墙 Footings/Foundation walls with anchor bolt installation 矮墙 Curb walls 防潮或防水 Damp proofing or waterproofing 排水回填 Drainage Backfilling 有关基础的规范Foundation Codes 中国没有专门针对轻型木结构房屋的基础规范。然而，那些运范围更广的全国性和地方性基础规范也适用于木结构房屋。 In China, there are no foundation codes that address wood platform frame buildings. There are, however, more broadly based national and regional foundation codes that impact foundation design of wood buildings. 全国性和地方性规范有： These national and local codes include: 《建筑地基基础设计规范》GB50007 GB 50007: Code for Design of Building Foundation 《建筑结构荷载设计规范》GB50009 GB 50009: Loading Code for Design of Building Structures 《混凝土结构设计规范》GB50010 GB 50010: Code for Design of Concrete Structures 《建筑物抗震设计规范》GB50011 GB 50011: Code for Seismic Design of Buildings 《建筑地基处理技术规范》JGJ79-2002 JGJ 79-2002: Technical Code for Ground Treatment of Buildings 《地基基础设计规范》（上海市）DGJ08-11 DGJ 08‐11: Shanghai Municipality Code for Foundation Design 《岩土工程勘察规范》（上海市）DGJ08-37 DGJ 08‐37: Shanghai Municipality Code for Geotechnical Investigation 《地基处理技术规范》（上海市）DBJ08-40 DGJ 08‐40: Shanghai Municipality Code for Foundation Treatment 有关基础规范的内容Foundation Codes Cont 目前轻型木结构最高允许三层，同时木结构的自重为相同体量混凝土结构的10%-12%。 Wood structures are currently limited to three story‘s and only as 10-12% the weight (gravity load) of a comparable size concrete building . 基础的尺寸，强度及基础土的承载能力，均远小于相同情况下的混凝土建筑。 The dimensions and strength requirements of the foundation components, and the bearing capacity of the soil, can therefore be substantially less. 就“木结构建筑对基础的要求应与混凝土木结构有很大不同”这一点，在中国目前的工程实践和设计规范中还未能体现，仍旧沿用对传统建筑的要求。 The need for a less substantial foundation is currently not completely reflected in the Chinese code or in foundation engineering, which, were intended for traditional construction system. 基础，基础墙和/或基础柱 Comprised of footings, foundation walls and/or columns 混凝土结构对基础的规范与木结