JGJ/T497-2023：预应力钢结构技术标准

JGJ/T497-2023······1

1 总则······13

2 术语和符号······14

2.1 术语······14

2.2 符号······17

3 结构设计基本规定······19

3.1 一般规定······19

3.2 作用······22

3.3 结构分析······24

3.4 承载能力计算······28

3.5 变形能力验算······29

3.6 正常使用极限状态验算······29

3.7 预应力设计······30

3.8 预应力损失计算······31

4 材料······35

4.1 一般规定······35

4.2 索体和杆体材料······35

4.3 锚具······37

4.4 设计指标······43

4.5 索杆性能和试验要求······45

5 结构体系······48

5.1 一般规定······48

5.2 预应力拉杆······49

5.3 预应力压杆······50

5.4 预应力实腹梁······51

5.5 预应力桁架······52

5.6 预应力拱架······57

5.7 预应力门式框架······58

5.8 预应力吊挂结构······59

5.9 预应力立体桁架······60

5.10 预应力网架······62

5.11 预应力网壳······64

5.12 预应力玻璃幕墙结构······68

5.13 索膜结构······70

5.14 预应力框架体系及框架-支撑体系······71

5.15 索穹顶结构······73

6 连接节点······75

6.1 张拉节点······75

6.2 锚固节点······78

6.3 转折节点······82

6.4 索杆连接节点······85

6.5 拉索交叉节点······89

6.6 玻璃幕墙节点······91

6.7 撑杆节点······93

6.8 支座节点······94

7 施工及验收······96

7.1 一般规定······96

7.2 安装······96

7.3 预应力张拉······97

7.4 施工监测······98

7.5 验收······98

8 防护和维护······100

8.1 防腐······100

8.2 防火······101

8.3 防护······102

8.4 维护······103

附录A 索体和杆体材料选用表······104

附录B 锚具材料选用表······105

本标准用词说明······106

引用标准名录······107

附：条文说明······109

1 总则······113

3 结构设计基本规定······114

3.1 一般规定······114

3.2 作用······115

3.3 结构分析······115

3.4 承载能力计算······116

3.5 变形能力验算······117

3.7 预应力设计······117

3.8 预应力损失计算······118

4 材料······119

4.1 一般规定······119

4.2 索体和杆体材料······119

4.3 锚具······119

4.4 设计指标······120

4.5 索杆性能和试验要求······120

5 结构体系······121

5.1 一般规定······121

5.2 预应力拉杆······121

5.3 预应力压杆······122

5.4 预应力实腹梁······122

5.5 预应力桁架······122

5.6 预应力拱架······123

5.7 预应力门式框架······124

5.8 预应力吊挂结构······124

5.9 预应力立体衔架······125

5.10 预应力网架······127

5.11 预应力网壳······128

5.12 预应力玻璃幕墙结构······129

5.14 预应力框架体系及框架-支撑体系······130

5.15 索穹顶结构······131

6 连接节点······133

6.1 张拉节点······133

6.2 锚固节点······133

6.3 转折节点······133

6.4 索杆连接节点······134

6.5 拉索交叉节点······134

6.7 撑杆节点······134

6.8 支座节点······134

7 施工及验收······135

7.1 一般规定······135

7.2 安装······135

7.3 预应力张拉······135

7.4 施工监测······136

7.5 验收······137