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目录
1#雨蓬计算书 ........................................................................................................................................................... 2
(1)节点A: ................................................................................................................................................ 2 (2)节点D: ................................................................................................................................................ 2 (3)节点E: ................................................................................................................................................. 3 (4)节点F1: ............................................................................................................................................... 3 (5)节点F2: ............................................................................................................................................... 4 (6)节点G1: ............................................................................................................................................. 5 (7)节点H .................................................................................................................................................... 5 (8)5-5剖面 ................................................................................................................................................ 6 (9)GL-1简支梁计算书 ........................................................................................................................... 6 2#雨蓬计算书 ........................................................................................................................................................ 10
(1)节点F ................................................................................................................................................... 10 (2)节点G .................................................................................................................................................. 10 (3)节点H: ............................................................................................................................................. 11 (4)节点I .................................................................................................................................................... 12 (3)9.5m斜拉条处长度4m 的YPL-1简支梁计算书 ................................................................. 12 (4)9.5m斜拉条处长度5.5m 的YPL-1简支梁计算书 ............................................................. 15 (5)9.5m斜拉条处长度6.7m 的YPL-1简支梁计算书 ............................................................. 18 3#雨蓬计算书 ........................................................................................................................................................ 22
(1)节点D .................................................................................................................................................. 22 (3)长度3.2m的YPL-3简支梁计算书 ............................................................................................ 23 (4)长度4.6m的YPL-3简支梁计算书 ............................................................................................ 27
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1#雨蓬计算书
(1)节点A:
已知:根据GL-1简支梁计算书得,
Vx?190.50KNVy?72.23KNV?Vx2?Vy2?203.73KN由锚栓设计基本参数,取M16化学锚栓,得:
单个螺栓抗剪设计值:VRd?34.7KN 所以,单个螺栓所受拉力:
N1?V203.73??20.4KN?Nvb?34.7KNn10 3-3剖面
10个M16化学螺栓满足承载力要求。
(2)节点D:
支座反力:N?127KN,V?42.4KN 单个高强度螺栓承压型连接的承载力设计值受剪连接时,抗剪公式如下:
Nbv?nv??de24?fvb
公式中,nv=1(单剪),螺栓的有效直径
de?17.65mm,螺栓有效面积
10.9级承压型高强螺栓得Ae?245mm2,
fvb?310N/mm2,经计算,
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NVN?NVDN127??25.4KNn5
V42.4???8.48KNn5NVN?NVD22NV??26.78KN?NVb?76.0KN
Nbv?nv??de24?fvb?1?245?310?76.0KN
故,采用单面5个10.9级M20承压型高强螺栓连接满足承载力要求。
(3)节点E:
由支座反力得:N?163KN
销轴处,使用单个10.9级M30承压型高强螺栓,有效直径de?26.72mm,有效面积Ae?561mm,Q345钢构件的承压
2fcb?590N/mm2,抗剪
fvb?310N/mm2
nv?2由构件信息得,?t?20mm
d?30mmNbvNcb?de2?nv??fvb?2?561?310?347.82KN取两者中的较小者, 4?d??t?fcb?30?20?590?354KNb故选用Nv?347.82KN
N?163KN?Nvb?347.82KN
故,单个10.9级M30承压型高强螺栓满足承载力设计值。
(4)节点F1:
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由支座反力得:N?129KN
取M16化学锚栓,单个螺栓拉力设计值NRd?34.6KN 单个螺栓所受拉力:
N1?V129??16.1KN?NRd?34.6KNn8
采用8个M16锚栓连接满足承载力要求。
(5)节点F2:
①处由8个M16化学锚栓连接,②处由10.9级M16承压型高强螺栓连接。
① 计算:单个M16化学锚栓的抗剪设计值
VRd?34.7KN,构件受剪力
V?87KNV1?
V87??10.9KN?VRd?34.7KNn8②处计算:采用4个10.9级M20承压型高强螺栓连接。此时②处拉力N=87KN。
螺栓的有效直径de?17.65mm,螺栓有效面积
Ae?245mm2, 10.9级承压型高强螺栓得
ftb?500N/mm2,经计算,
Nbt??de24?ftb?157?500?78.5KN
N1?N87??21.75KN?Nvb?78.5KN n4故,②处采用4个10.9级M16承压型高强螺栓连接满足要求。
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(6)节点G1:
由支座反力,M?7.4KNgm,N?62KN,
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M16化学锚栓个数n单个螺栓拉力设计值NRd?34.6KN 该截面受轴心和弯矩共同作用,
QMyN627.4?0.15?n1????0.47?02n80.15?6?yi2i?1?e?Nmax?M?0.119mmN?M?Ne?y?Nn?1yi??i?1n?24.19KN
2Nmax?NRd
所以,8个M16化学锚栓满足承载力设计要求。
(7)节点H
由
支
座
反
力
得
:
N?129KN,V?91.2KN,
M?108.9KNgm取M27化学锚栓,单个螺栓拉力设计值:
NRd?110.9KN,VRd?164.0KN
单个螺栓所受拉力:
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