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时间:2020-09-05
《附录A:风荷载计算系数.doc》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、附录A:风荷载计算系数A1风压高度变化系数 对于平坦或稍有起伏的地形,风压高度变化系数应根据地面粗糙度类别按表A1确定。地面粗糙度可分为A、B、C、D四类: ——A类指近海海面和海岛、海岸、湖岸及沙漠地区; ——B类指田野、乡村、丛林、丘陵以及房屋比较稀疏的乡镇和城市郊区; ——C类指有密集建筑群的城市市区; ——D类指有密集建筑群且房屋较高的城市市区。表A1风压高度变化系数离地面或海平面高度地面粗糙类别ABCD51.171.000.740.62101.381.000.740.62151.521.140.740.6
2、2201.631.250.840.62301.801.421.000.62401.921.561.130.73502.031.671.250.84603.121.771.350.93702.201.861.451.02803.271.951.541.11902.342.021.621.191003.402.091.701.271502.642.382.031.612003.832.612.301.922502.992.802.542.193003.122.972.752.453503.123.122.942.684003.12
3、3.123.122.91/4503.123.123.123.12A2阵风系数表A2:阵风系数离地面高度(m)地面粗糙类别ABCD51.691.882.303.21101.631.782.102.76151.601.721,992.54201.581.691.922.39301.541.641.832.21401.521.601.772.09501.511.581.732.01601.491.561.691.94701.481.541.661.89801.471.531.641.85901.471.521.621.811001.
4、461.511.601.781501.431.471.541.672001.421.441.501.602501.401.421.461.553001.391.411.441.51A3全国基本风压图
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