DBT29-261-2019······1

1 總則······10

2 術(shù)語和符號(hào)······11

2.1 術(shù)語······11

2.2 符號(hào)······12

3 基本規(guī)定······16

3.1 一般設(shè)計(jì)規(guī)定······16

3.2 結(jié)構(gòu)選型······17

3.3 材料性能指標(biāo)······19

3.4 撓度容許值······21

4 結(jié)構(gòu)計(jì)算······22

4.1 一般計(jì)算原則······22

4.2 靜力計(jì)算······22

4.3 穩(wěn)定性計(jì)算······23

4.4 抗震計(jì)算······24

4.5 抗風(fēng)計(jì)算······25

4.6 防連續(xù)倒塌······25

5 桿件和節(jié)點(diǎn)的設(shè)計(jì)與構(gòu)造······27

5.1 桿件······27

5.2 板式節(jié)點(diǎn)······28

5.3 螺栓球節(jié)點(diǎn)······37

5.4 轂式節(jié)點(diǎn)······44

5.5 鑄鋁節(jié)點(diǎn)······47

5.6 螺栓環(huán)節(jié)點(diǎn)······48

5.7 支座節(jié)點(diǎn)······51

6 制作安裝與防護(hù)······55

6.1 一般規(guī)定······55

6.2 制作與預(yù)拼裝······56

6.3 包裝與運(yùn)輸······64

6.4 安裝······66

6.5 防腐······66

6.6 防火、隔熱······67

7 驗(yàn)收······68

7.1 一般規(guī)定······68

7.2 支承面允許偏差······69

7.3 總拼和安裝允許偏差······70

7.4 交驗(yàn)······71

附錄A 常用材料性能指標(biāo)······73

附錄B 常用網(wǎng)架形式······76

附錄C 常用網(wǎng)殼形式······83

附錄D 鋁合金材料的彈塑性本構(gòu)關(guān)系······87

本規(guī)程用詞說明······88

引用標(biāo)準(zhǔn)名錄······89

條文說明······92

1 總則······95

3 基本規(guī)定······96

3.1 一般設(shè)計(jì)規(guī)定······96

3.2 結(jié)構(gòu)選型······97

3.3 材料性能指標(biāo)······99

3.4 撓度容許值······101

4 結(jié)構(gòu)計(jì)算······102

4.1 一般計(jì)算原則······102

4.2 靜力計(jì)算······103

4.3 穩(wěn)定性計(jì)算······104

4.4 抗震計(jì)算······105

4.5 抗風(fēng)計(jì)算······108

5 桿件與節(jié)點(diǎn)的設(shè)計(jì)與構(gòu)造······109

5.1 桿件······109

5.2 板式節(jié)點(diǎn)······110

5.3 螺栓球節(jié)點(diǎn)······112

5.4 轂式節(jié)點(diǎn)······114

5.5 鑄鋁節(jié)點(diǎn)······119

5.6 螺栓環(huán)節(jié)點(diǎn)······121

5.7 支座節(jié)點(diǎn)······122

6 制作安裝與防護(hù)······124

6.1 一般規(guī)定······124

6.2 制作與預(yù)拼裝······125

6.3 包裝與運(yùn)輸······126

6.4 安裝······127

6.5 防腐······128

6.6 防火、隔熱······130

7 驗(yàn)收······131

7.1 一般規(guī)定······131

7.2 支承面允許偏差······131

7.3 總拼和安裝允許偏差······131

7.4 交驗(yàn)······132