支承塔型设备的框架顶横风向风荷载分析  

ANALYSIS OF WIND LOAD IN THE DIRECTION PERPENDICULAR TO THE WIND ON THE FRAME SUPPORTING TOWER-TYPE EQUIPMENT

作　　者：郝仕玲[1] 陈瑞金[2] 

机构地区：[1]中国农业大学水利与土木工程学院,北京100083 [2]中国石化工程建设公司,北京100101

出　　处：《钢结构》2005年第3期60-62,91,共4页Steel Construction

摘　　要：推导了支承在框架上塔型设备出现横风共振的上、下限塔径计算公式和框架顶部的横风向风荷载计算公式。通过迭代计算求出给定基本风压、地面粗糙度类别、塔顶高度、框架高度等条件下,当框架顶横风向风荷载大于顺风向风荷载对应的塔径范围,框架顶横风向风荷载与顺风向风荷载比值最大值及对应的塔径。Some formul as are given for the determination of the diameter range in which sym pathetic vibration of tower-type e quipment occure,and the calculatio n of wind loads on the frame that supports the equipment.The compari son between the wind load on the f rame in the same direction as the wind and that in the direction per pendicular to the wind is carried out in accordance with the terrain roughness,the reference wind pressu re,the height of the equipment,the height of the frame and the corres ponding diameters of the tower-typ e equipment.

关 键 词：塔型设备 横风向 框架 荷载分析 支承 计算公式 地面粗糙度 基本风压 迭代计算 顺风向 风荷 塔径 最大值 高度 

分 类 号：TU312.1[建筑科学—结构工程]