雨蓬钢结构计算.doc

雨蓬结构计算(一)、荷载计算 1、标高为5 m 处荷载计算 (1). 风荷载计算:W0:作用在雨蓬上的基本风压值：0.55 kN/m2 Wk:作用在雨蓬上的风荷载标准值 ( kN/m2 )W:作用在雨蓬上的风荷载设计值 ( kN/m2 )gz: 6m 高处阵风系数(按B类区计算),由GB50009-2001表7.5.1得1.88z: 6m 高处风压高度变化系数(按B类区计算),由GB50009-2001表7.2.1得1.00s :风荷载体型系数,取为 -2w :风荷载作用分项系数: 1.4Wk =gzzsW0 (GB50009-2001)=1.881.002.00.55 =2.07 kN/m2 W =W Wk = 1.42.07 = 2.9 kN/m2(2). 玻璃自重:采用 8 + 1.14PVB + 8 mm 夹胶钢化玻璃GAK :雨蓬玻璃的平均自重标准值 ( kN/m2 )GA :雨蓬玻璃的平均自重设计值 ( kN/m2 )G :自重荷载作用分项系数: 1.35GAK =25.6(8+8)/1000 = 0.41 kN/m2GA =G GAK =1.350.41 = 0.55 kN/m2(3). 结构自重(含不锈钢爪件):GBK =0.15kPaGA =G GAK =1.350.15 = 0.20 kN/m2(4). 雪荷载计算:Sk:作用在幕墙上的雪荷载标准值,上海取为0.2 ( kN/m2 )S:作用在幕墙上的雪荷载设计值 ( kN/m2 )S0 :基本雪压,按建筑结构荷载规范GB50009-2001，取为 0.40S :雪荷载作用分项系数: 1.4r :屋面积雪分布系数,按GB50009-2001，取1.0Sk =rS0(GB50009-2001 6.1.1)=1.0 0.20 = 0.20 kN/m2S =S Sk =1.4 0.20 = 0.28 kN/m2(5). 活荷载计算:q活k:作用在雨蓬上的活荷载标准值：0.500 kN/m2 q活:作用在雨蓬上的活荷载设计值 ( kN/m2 )活 :活荷载作用分项系数: 1.4 q活 =活 q活k: =1.40.50 = 0.70 kN/m2(5). 荷载组合:计算钢结构时工况一： 重力 + 1 活荷载 标准值 qk设计值 q0.41+0.15+10.500.55+0.2+10.70 = 1.06 kN/m2 = 1.45 kN/m2工况二： 重力 + 1 雪荷载 标准值 qk设计值 q0.15+0.41+10.200.2+0.55+10.28 = 0.76 kN/m2 = 1.03 kN/m2工况三： 风力 - 重力 标准值 qk设计值 q2.07 - 0.41-0.152.9 - 0.41-0.15 = 1.51 kN/m2 = 2.34 kN/m2经比较，工况一和工况三更为不利，校核这两种工况下的结构受力情况。(二)、雨蓬钢梁计算为保守起见，雨蓬拉杆不考虑承压，雨蓬梁按悬臂梁模型进行计算。计算模型如下图所示：由施工图可知，钢梁悬挑长度 L3050mm，钢梁间距 a 1158 mm = 1.158m钢梁截面特性(Q235B钢材)， 钢梁弹性模量 E206000N/mm2(三)、计算结果1.结构变形fmax19.959mm依据规范，钢梁允许挠度为f2L/2502x3050/25024.4mmfmax/f19.959/24.40.821可见，钢梁挠度满足设计要求。2.钢梁强度校核计算可知，钢梁最大应力120.894 MPa钢梁设计强度 = 215 MPa因此钢梁强度满足设计要求。3.钢管强度校核计算可知，钢梁最大应力68.96 MPa钢梁设计强度 = 215 MPa因此钢梁强度满足设计要求。4.节点编号图5.支座反力列表单位：NPRINT FZ REACTION SOLUTIONS PER NODE * POST1 TOTAL REACTION SOLUTION LISTING * LOAD STEP= 0 SUBSTEP= 1 TIME= 1.0000 LOAD CASE= 0 THE FOLLOWING X,Y,Z SOLUTIONS ARE IN GLOBAL COORDINATES NODE FZ 10 -72598. 14 46458. 19 6401.3 51 -19008. 118 -72598. 126 -8267.7 148 16926. 152 6401.3 178 46458. 182 -19008. 186 16926. TOTAL VALUES VALUE -51909.6.关键点列表 LIST ALL SELECTED KEYPOINTS. DSYS= 0 NO. X,Y,Z LOCATION THXY,THYZ,THZX ANGLES 1 42623.09 -34196.81 0.000000 0.0000 0.0000 0.0000 2 42623.09 -35394.99 0.000000 0.0000 0.0000 0.0000 3 42623.09 -32894.99 0.000000 0.0000 0.0000 0.0000 4 35973.09 -32496.09 3000.000 0.0000 0.0000 0.0000 5 42623.09 -32496.09 0.000000 0.0000 0.0000 0.0000 6 42623.09 -32496.09 3000.000 0.0000 0.0000 0.0000 7 42623.09 -31885.09 0.000000 0.0000 0.0000 0.0000 9 41614.76 -32496.09 0.000000 0.0000 0.0000 0.0000 10 41614.76 -31885.09 0.000000 0.0000 0.0000 0.0000 11 41614.76 -32894.99 0.000000 0.0000 0.0000 0.0000 13 41614.76 -34196.81 0.000000 0.0000 0.0000 0.0000 15 41614.76 -35394.99 0.000000 0.0000 0.0000 0.0000 17 40456.43 -35394.99 0.000000 0.0000 0.0000 0.0000 19 40456.43 -34196.81 0.000000 0.0000 0.0000 0.0000 21 40456.43 -32894.99 0.000000 0.0000 0.0000 0.0000 23 40456.43 -32496.09 0.000000 0.0000 0.0000 0.0000 25 39439.09 -32496.09 0.000000 0.0000 0.0000 0.0000 27 38139.76 -35394.99 0.000000 0.0000 0.0000 0.0000 28 36981.43 -35394.99 0.000000 0.0000 0.0000 0.0000 30 39298.09 -35394.99 0.000000 0.0000 0.0000 0.0000 NO. X,Y,Z LOCATION THXY,THYZ,THZX ANGLES 37 39298.09 -34196.81 0.000000 0.0000 0.0000 0.0000 39 38139.76 -34196.81 0.000000 0.0000 0.0000 0.0000 41 36981.43 -34196.81 0.000000 0.0000 0.0000 0.0000 43 35973.09 -34196.81 0.000000 0.0000 0.0000 0.0000 53 39298.09 -32894.99 0.000000 0.0000 0.0000 0.0000 55 38139.76 -32894.99 0.000000 0.0000 0.0000 0.0000 57 36981.43 -32894.99 0.000000 0.0000 0.0000 0.0000 59 35973.09 -32894.99 0.000000 0.0000 0.0000 0.0000 61 36981.43 -32496.09 0.000000 0.0000 0.0000 0.0000 62 35973.09 -32496.09 0.000000 0.0000 0.0000 0.0000 63 38139.76 -32496.09 0.000000 0.0000 0.0000 0.0000 66 39298.09 -32696.81 0.000000 0.0000 0.0000 0.0000 79 38139.76 -31885.09 0.000000 0.0000 0.0000 0.0000 82 36981.43 -31885.09 0.000000 0.0000 0.0000 0.0000 89 35973.09 -35394.99 0.000000 0.0000 0.0000 0.0000 97 35973.09 -31885.09 0.000000 0.0000 0.0000 0.0000 99 39157.09 -32496.09 0.000000 0.0000 0.0000 0.0000 102 40456.43 -31885.09 0.000000 0.0000 0.0000 0.00007.单元列表 LIST ALL SELECTED ELEMENTS. (LIST NODES) ELEM MAT TYP REL ESY SEC NODES 33 1 2 4 0 1 35 36 0 34 1 2 4 0 1 36 37 0 35 1 2 4 0 1 37 38 0 36 1 2 4 0 1 38 31 0 53 1 2 4 0 1 55 57 0 54 1 2 4 0 1 57 58 0 55 1 2 4 0 1 58 59 0 56 1 2 4 0 1 59 56 0 57 1 2 4 0 1 35 61 0 58 1 2 4 0 1 61 62 0 59 1 2 4 0 1 62 63 0 60 1 2 4 0 1 63 60 0 61 1 2 4 0 1 2 64 0 62 1 2 4 0 1 64 65 0 63 1 2 4 0 1 65 66 0 64 1 2 4 0 1 66 31 0 65 1 2 2 0 1 27 67 0 66 1 2 2 0 1 67 68 0 67 1 2 2 0 1 68 69 0 68 1 2 2 0 1 69 1 0 ELEM MAT TYP REL ESY SEC NODES 69 1 2 2 0 1 39 70 0 70 1 2 2 0 1 70 71 0 71 1 2 2 0 1 71 72 0 72 1 2 2 0 1 72 27 0 73 1 2 2 0 1 73 74 0 74 1 2 2 0 1 74 75 0 75 1 2 2 0 1 75 76 0 76 1 2 2 0 1 76 39 0 77 1 2 2 0 1 77 78 0 78 1 2 2 0 1 78 79 0 79 1 2 2 0 1 79 80 0 80 1 2 2 0 1 80 73 0 81 1 2 2 0 1 81 82 0 82 1 2 2 0 1 82 83 0 83 1 2 2 0 1 83 84 0 84 1 2 2 0 1 84 77 0 85 1 2 2 0 1 85 86 0 86 1 2 2 0 1 86 87 0 87 1 2 2 0 1 87 88 0 88 1 2 2 0 1 88 81 0 ELEM MAT TYP REL ESY SEC NODES 97 1 2 2 0 1 23 95 0 98 1 2 2 0 1 95 96 0 99 1 2 2 0 1 96 97 0 100 1 2 2 0 1 97 6 0 101 1 2 2 0 1 43 98 0 102 1 2 2 0 1 98 99 0 103 1 2 2 0 1 99 100 0 104 1 2 2 0 1 100 23 0 105 1 2 2 0 1 101 102 0 106 1 2 2 0 1 102 103 0 107 1 2 2 0 1 103 104 0 108 1 2 2 0 1 104 43 0 109 1 2 2 0 1 105 106 0 110 1 2 2 0 1 106 107 0 111 1 2 2 0 1 107 108 0 112 1 2 2 0 1 108 101 0 113 1 2 2 0 1 109 110 0 114 1 2 2 0 1 110 111 0 115 1 2 2 0 1 111 112 0 116 1 2 2 0 1 112 105 0 ELEM MAT TYP REL ESY SEC NODES 117 1 2 2 0 1 113 114 0 118 1 2 2 0 1 114 115 0 119 1 2 2 0 1 115 116 0 120 1 2 2 0 1 116 109 0 141 1 2 4 0 1 55 136 0 142 1 2 4 0 1 136 137 0 143 1 2 4 0 1 137 138 0 144 1 2 4 0 1 138 60 0 177 1 2 4 0 1 165 166 0 178 1 2 4 0 1 166 167 0 179 1 2 4 0 1 167 168 0 180 1 2 4 0 1 168 56 0 205 1 2 2 0 1 190 56 0 206 1 2 2 0 1 191 31 08.节点列表 LIST ALL SELECTED NODES. DSYS= 0 SORT TABLE ON NODE NODE NODE NODE X Y Z 1 42623.0942485 -34196.8069027 0.00000000000 2 42623.0942485 -35394.9881934 0.00000000000 3 42623.0942485 -34496.3522254 0.00000000000 4 42623.0942485 -34795.8975480 0.00000000000 5 42623.0942485 -35095.4428707 0.00000000000 6 42623.0942485 -32894.9868226 0.00000000000 7 42623.0942485 -33220.4418426 0.00000000000 8 42623.0942485 -33545.8968626 0.00000000000 9 42623.0942485 -33871.3518827 0.00000000000 10 42623.0942485 -32496.0866698 0.00000000000 11 42623.0942485 -32595.8117080 0.00000000000 12 42623.0942485 -32695.5367462 0.00000000000 13 42623.0942485 -32795.2617844 0.00000000000 14 42623.0942485 -31885.0866698 0.00000000000 15 42623.0942485 -32037.8366698 0.00000000000 16 42623.0942485 -32190.5866698 0.00000000000 17 42623.0942485 -32343.3366698 0.00000000000 18 41614.7609152 -32496.0866698 0.00000000000 19 41614.7609152 -31885.0866698 0.00000000000 20 41614.7609152 -32343.3366698 0.00000000000 NODE X Y Z 21 41614.7609152 -32190.5866698 0.00000000000 22 41614.7609152 -32037.8366698 0.00000000000 23 41614.7609152 -32894.9868226 0.00000000000 24 41614.7609152 -32795.2617844 0.00000000000 25 41614.7609152 -32695.5367462 0.00000000000 26 41614.7609152 -32595.8117080 0.00000000000 27 41614.7609152 -34196.8069027 0.00000000000 28 41614.7609152 -33871.3518827 0.00000000000 29 41614.7609152 -33545.8968626 0.00000000000 30 41614.7609152 -33220.4418426 0.00000000000 31 41614.7609152 -35394.9881934 0.00000000000 32 41614.7609152 -35095.4428707 0.00000000000 33 41614.7609152 -34795.8975480 0.00000000000 34 41614.7609152 -34496.3522254 0.00000000000 35 40456.4275819 -35394.9881934 0.00000000000 36 40746.0109152 -35394.9881934 0.00000000000 37 41035.5942485 -35394.9881934 0.00000000000 38 41325.1775819 -35394.9881934 0.00000000000 39 40456.4275819 -34196.8069027 0.00000000000 40 40456.4275819 -34496.3522254 0.00000000000 NODE X Y Z 41 40456.4275819 -34795.8975480 0.00000000000 42 40456.4275819 -35095.4428707 0.00000000000 43 40456.4275819 -32894.9868226 0.00000000000 44 40456.4275819 -33220.4418426 0.00000000000 45 40456.4275819 -33545.8968626 0.00000000000 46 40456.4275819 -33871.3518827 0.00000000000 47 40456.4275819 -32496.0866698 0.00000000000 48 40456.4275819 -32595.8117080 0.00000000000 49 40456.4275819 -32695.5367462 0.00000000000 50 40456.4275819 -32795.2617844 0.00000000000 51 39439.0942485 -32496.0866698 0.00000000000 52 39693.4275819 -32496.0866698 0.00000000000 53 39947.7609152 -32496.0866698 0.00000000000 54 40202.0942485 -32496.0866698 0.00000000000 55 38139.7609152 -35394.9881934 0.00000000000 56 36981.4275819 -35394.9881934 0.00000000000 57 37850.1775819 -35394.9881934 0.00000000000 58 37560.5942485 -35394.9881934 0.00000000000 59 37271.0109152 -35394.9881934 0.00000000000 60 39298.0942485 -35394.9881934 0.00000000000 NODE X Y Z 61 40166.8442485 -35394.9881934 0.00000000000 62 39877.2609152 -35394.9881934 0.00000000000 63 39587.6775819 -35394.9881934 0.00000000000 64 42371.0109152 -35394.9881934 0.00000000000 65 42118.9275819 -35394.9881934 0.00000000000 66 41866.8442485 -35394.9881934 0.00000000000 67 41866.8442485 -34196.8069027 0.00000000000 68 42118.9275819 -34196.8069027 0.00000000000 69 42371.0109152 -34196.8069027 0.00000000000 70 40746.0109152 -34196.8069027 0.00000000000 71 41035.5942485 -34196.8069027 0.00000000000 72 41325.1775819 -34196.8069027 0.00000000000 73 39298.0942485 -34196.8069027 0.00000000000 74 39587.6775819 -34196.8069027 0.00000000000 75 39877.2609152 -34196.8069027 0.00000000000 76 40166.8442485 -34196.8069027 0.00000000000 77 38139.7609152 -34196.8069027 0.00000000000 78 38429.3442485 -34196.8069027 0.00000000000 79 38718.9275819 -34196.8069027 0.00000000000 80 39008.5109152 -34196.8069027 0.00000000000 NODE X Y Z 81 36981.4275819 -34196.8069027 0.00000000000 82 37271.0109152 -34196.8069027 0.00000000000 83 37560.5942485 -34196.8069027 0.00000000000 84 37850.1775819 -34196.8069027 0.00000000000 85 35973.0942485 -34196.8069027 0.00000000000 86 36225.1775819 -34196.8069027 0.00000000000 87 36477.2609152 -34196.8069027 0.00000000000 88 36729.3442485 -34196.8069027 0.00000000000 89 41866.8442485 -32496.0866698 0.00000000000 90 42118.9275819 -32496.0866698 0.00000000000 91 42371.0109152 -32496.0866698 0.00000000000 92 40746.0109152 -32496.0866698 0.00000000000 93 41035.5942485 -32496.0866698 0.00000000000 94 41325.1775819 -32496.0866698 0.00000000000 95 41866.8442485 -32894.9868226 0.00000000000 96 42118.9275819 -32894.9868226 0.00000000000 97 42371.0109152 -32894.9868226 0.00000000000 98 40746.0109152 -32894.9868226 0.00000000000 99 41035.5942485 -32894.9868226 0.00000000000 100 41325.1775819 -32894.9868226 0.00000000000 NODE X Y Z 101 39298.0942485 -32894.9868226 0.00000000000 102 39587.6775819 -32894.9868226 0.00000000000 103 39877.2609152 -32894.9868226 0.00000000000 104 40166.8442485 -32894.9868226 0.00000000000 105 38139.7609152 -32894.9868226 0.00000000000 106 38429.3442485 -