某古塔结构现状检测分析探究  

Detection and analysis of the safety an ancient pagoda structure

作　　者：卓炳灿 ZHUO Bingcan

机构地区：[1]福建省建筑科学研究院有限责任公司,福建省绿色建筑技术重点实验室,福建福州350108

出　　处：《福建建设科技》2024年第3期38-40,共3页Fujian Construction Science & Technology

摘　　要：为了解掌握古塔结构现状存在的缺陷及结构特性问题,本文以某石砌古塔为例,通过损伤、缺陷现场调查,根据古塔独特造型及现状采用连通管原理水平观测手段进行古塔沉降差变形观测,并采用结构动力特性实测自振频率,结合古塔的理论计算频率比对,结果表明,该古塔结构已发生明显损伤、缺陷及变形,且结构刚度已出现变化。同时依据本文方法经验可以发现,连通管原理测量可用于一些独特造型及条件受限下的变形观测;建筑结构理论计算频率与结构动力特性实测频率可用于分析现阶段建筑结构刚度问题,也可作为一项监测技术手段判断建筑结构的技术状况是否出现劣化。In order to understand and grasp the existing defects and structural characteristics of ancient pagoda structure,this paper takes a stone ancient pagoda as an example,through the field investigation of damage and defects,adopts the horizontal observation method of connecting pipe principle according to the unique shape and current situation of ancient pagoda to observe the settlement difference deformation of ancient pagoda,and adopts the measured natural vibration frequency of structural dynamic characteristics combined with the theoretical calculation frequency comparison of ancient pagoda.The results show that,The structure of the ancient tower has obvious damage,defects and deformation,and the structural stiffness has changed.At the same time,according to the experience of this method,it can be found that the measurement of connecting tube principle can be used for deformation observation under some unique shapes and limited conditions.The theoretical calculation frequency of building structure and the measured frequency of structural dynamic characteristics can be used to analyze the stiffness of building structure at the present stage,and can also be used as a monitoring technique to judge whether the technical condition of building structure has deteriorated.

关 键 词：古塔检测 变形观测 结构动力特性 

分 类 号：TU317[建筑科学—结构工程]