cecs 158：2004 膜结构技术规程 条文说明

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1、中国工程建设标准化协会标准膜结构技术规程CECS158:2004条文说明目次1总则·........................................................(47)3设计基本规定·········································.⋯⋯、.(48)3.1膜结构选型···‘·······························，二(48)3.2建筑设计················。······························⋯⋯(48)3.3结构设计·········

2、······································⋯⋯(49)4材料·........................................................(52)4.1膜材···········，············，···············。，··········⋯⋯(52)4.2拉索和锚具··，···········································，⋯(53)5结构计算··········，····················⋯⋯，·⋯，...·...⋯⋯(5

3、4)5.1一般规定、············································⋯⋯(54)5.2初始形态分析··········································⋯⋯(56)5.3荷载效应分析········································、···⋯⋯(56)5.4裁剪分析······················，，························⋯⋯(59)5.5空气支承膜结构计算要点····························⋯⋯(60

4、)6连接构造·················································⋯⋯，·(62)6.1一般规定························。·····················⋯⋯(62)6.2膜材的连接·············································⋯⋯(62)6.3膜材与支承骨架、钢索、边缘构件的连接··············，⋯⋯(62)6.4钢索及其端部连接···········，·························⋯⋯(63)7制作，...

5、.....................................................(64)8安装··················································⋯⋯(66)8.1钢构件、拉索安装······································⋯⋯(66)8.2膜单元安装··············1···············、············，·⋯(66)8.3施加预张力································，···········⋯⋯(

6、66)459工程验收10维修和保养::::461总则1.0.2本规程所称“膜结构”，是泛指所有采用膜材及其支承构件(如拉索、钢骨架等)所组成的建筑物和构筑物，这种概念已在工程实践中被广泛接受。3设计基本规定3.1膜结构选型3.1.1除小跨度结构外，膜结构中的膜材总是与其他构件共同承重。目前，国内外对膜结构的形式有多种不同分类方法，尚未统一。本规程按膜材及其相关构件的受力方式分成四种形式，是一种比较科学的分类方法。3.1.2整体张拉式膜结构主要由索和膜构成，两者共同起承重作用，通过支承点和锚固点形成整体。3.1.3骨架支承式膜结构由钢构件(如拱、刚架)或其他刚性结

7、构起承重作用，膜材主要起围护作用。3.1.4索系支承式膜结构主要由索、杆和膜构成，三者共同起承重作用。在通常所称的张拉整体(tensegrity)结构中，如采用膜材，即属于索系支承膜结构。另外，比较流行的索弯顶结构(cabledom。也属于此类3.1.5以空气作为一种支承方式，是膜结构的一个特点，一般也称为充气结构，其设计与构造与传统结构有许多不同之处。3.2建筑设计3.2.2膜结构建筑的表现方式与一般建筑有所不同，在建筑单体方案设计阶段，就应充分考虑到不同表现方式的相容与协调，并注意利用膜结构建筑技术所具有的形象特点，因势利导。膜结构建筑的方案设计应由建筑师与

8、膜结构工程师共同完成。设