1.1 Spaceframe System Manual
1.2 Chinese GB Material Standards
1.3 ISO Material Standards
1.4 Chinese Design Standards
Loadings: GB 50009-2001
Steel structural design: GB 50017-2003
2.0 Material Strength
2.1 Pipes & cones to GB/T 700 Q235
Min. yield strength: 235 N/mm2
Min. tensile strength: 375 N/mm2
2.2 High-strength bolts to ISO 898-1 class 10.9
Min. yield strength: 940 N/mm2
Min. tensile strength: 1040 N/mm2
2.3 Nodes to GB/T 699 45# in normalized condition
Min. yield strength: 275 N/mm2
Min. tensile strength: 560 N/mm2
2.4 Sleeves to GB/T 700 Q345
Min. yield strength: 345 N/mm2
Min. tensile strength: 490 N/mm2
3.0 Slenderness ratio
The slenderness ratio of all members shall not exceed 180.
4.0 Software
Software: 3-dimensional spaceframe analysis and design (code checking) program from Beijing iKon Tech: SFCAD2000.
2. DESIGN LOADINGS
(1) DL: Dead Load
Roof cladding
Purlins
0.10 kN/m2
0.10 kN/m2
0.20 kN/m2
Spaceframe self weight to be taken the gravity of pipe multiply by 1.2 to include the weight of spaceframe nodes.
(2) LL: Live Load 1.00 kN/m2
(3) WL: Wind Load 0.70 kN/m2
Every 10 degrees as wind load direction WL1-WL36
All the members of the spaceframe will be code checked according to GB 50017-2003 for member tension and compression in the worst load combination listed above. Optimized pipe section will be auto selected thru an iterated method by software SFCAD.
欢迎光临 中华钢结构论坛 China Structure Forum (http://bbs.okok.org/)