焦作市广播电视塔的变形观测  

DISTORTION OBSERVATION OF JIAOZUO BROADCAST TV TOWER

作　　者：袁占良[1] 黄俊华[1] 刘超英 

机构地区：[1]桂林工学院土木工程系,541004 [2]焦作广播电视局,454000

出　　处：《桂林工学院学报》1999年第4期349-353,共5页Journal of Guilin University of Technology

摘　　要：　焦作市广播电视塔主体为钢管结构， 在２ 年的监控过程中按三等变形测量的精度， 布设了垂直位移监测网， 结果表明： 工作基准点稳定； 地面变形观测点及塔基变形观测点靠近塔中心下沉量较大， 后者达厘米级， 但都符合沉降规律。塔体垂直度观测采用经纬仪配合钢板尺、经纬仪配合测距仪， 中心偏离值除Ｚ７ ， Ｚ１０ ， Ｚ１１ 段为１２０ ～３３２ ｍ ｍ 外， 其余均≤１０ ｍ ｍ ； 塔顶重直度观测采用投影对照法， 中心偏离值为８９ ｍ ｍ 。其偏差值均在允许限差范围。Main body of Jiaozuo broadcast TV tower is of the steel-tube construction.For two years of monitoring, monitoring net of vertical shift on precision of three-class distorted survey has been arranged. results show that: working standard points are stabilized, distorted observation points of ground and tower foundation near the tower's center are subsiding to a greater extent to centimeter,but all agree to settling law. Verticality observation of tower's body is conducted by using theodolite fit nickelclad ruler and theodolite fit diastimeter. Center's deviation≤10 mm except 12 0～33 2 mm of Z 7,Z 10 ,Z 11 ,Verticality observation of tower's top is made by using projection comparison method.Center's deviation is 89 mm, all in allowable dimension variation.

关 键 词：变形观测 沉降 垂直度 钢架结构 电视塔 

分 类 号：TU196.1[建筑科学—建筑理论] TU433