DB/T29-261-2019：天津市铝合金空间网格结构技术规程

DBT29-261-2019······1

1 总则······10

2 术语和符号······11

2.1 术语······11

2.2 符号······12

3 基本规定······16

3.1 一般设计规定······16

3.2 结构选型······17

3.3 材料性能指标······19

3.4 挠度容许值······21

4 结构计算······22

4.1 一般计算原则······22

4.2 静力计算······22

4.3 稳定性计算······23

4.4 抗震计算······24

4.5 抗风计算······25

4.6 防连续倒塌······25

5 杆件和节点的设计与构造······27

5.1 杆件······27

5.2 板式节点······28

5.3 螺栓球节点······37

5.4 毂式节点······44

5.5 铸铝节点······47

5.6 螺栓环节点······48

5.7 支座节点······51

6 制作安装与防护······55

6.1 一般规定······55

6.2 制作与预拼装······56

6.3 包装与运输······64

6.4 安装······66

6.5 防腐······66

6.6 防火、隔热······67

7 验收······68

7.1 一般规定······68

7.2 支承面允许偏差······69

7.3 总拼和安装允许偏差······70

7.4 交验······71

附录A 常用材料性能指标······73

附录B 常用网架形式······76

附录C 常用网壳形式······83

附录D 铝合金材料的弹塑性本构关系······87

本规程用词说明······88

引用标准名录······89

条文说明······92

1 总则······95

3 基本规定······96

3.1 一般设计规定······96

3.2 结构选型······97

3.3 材料性能指标······99

3.4 挠度容许值······101

4 结构计算······102

4.1 一般计算原则······102

4.2 静力计算······103

4.3 稳定性计算······104

4.4 抗震计算······105

4.5 抗风计算······108

5 杆件与节点的设计与构造······109

5.1 杆件······109

5.2 板式节点······110

5.3 螺栓球节点······112

5.4 毂式节点······114

5.5 铸铝节点······119

5.6 螺栓环节点······121

5.7 支座节点······122

6 制作安装与防护······124

6.1 一般规定······124

6.2 制作与预拼装······125

6.3 包装与运输······126

6.4 安装······127

6.5 防腐······128

6.6 防火、隔热······130

7 验收······131

7.1 一般规定······131

7.2 支承面允许偏差······131

7.3 总拼和安装允许偏差······131

7.4 交验······132