预应力混凝土电视塔结构检测及评定  

Inspection and Evaluation of Prestressed Concrete TV Tower Structure

作　　者：李进 喻洪 李占鸿 白雪 宋攀峰 Li Jin;Yu Hong;Li Zhanhong;Bai Xue;Song Panfeng(Nanjing Housing Safety Service Center,210005,China;Nanjing Ansha House Safety Appraisal and Testing Office,210008,China;Shanghai Research Institute of Building Sciences Co.,Ltd.,200032,China;Shanghai Key Laboratory of Engineering Structure Safety,200032,China)

机构地区：[1]南京市房屋安全服务中心,210005 [2]南京安厦房屋安全鉴定检测事务所,210008 [3]上海市建筑科学研究院有限公司,200032 [4]上海市工程结构安全重点实验室,200032

出　　处：《特种结构》2023年第4期48-52,共5页Special Structures

摘　　要：南京市广播电视塔高度为310.1m,采用钢筋混凝土结构和钢结构,电视塔经过三十余年使用,受到自然灾害和环境侵蚀等各种不利因素的影响,多处存在露筋、锈蚀及混凝土剥落现象,局部存在水渍、涂料局部起皮剥落等情况,部分钢绞线表面浮锈、锚固端松动。本文针对其高耸异形、全面采用高效预应力的特点,对电视塔的检测及评定技术进行研究,对今后预应力混凝土电视塔检测具有指导意义。The height of Nanjing TV Tower is 310.1m,and it adopts reinforced concrete structure and steel structure.After more than 30 years of use,the TV Tower has been affected by various adverse factors such as natural disasters and environmental erosion.Exposed reinforcement,corrosion and concrete peeling were found in many places.Water stains and local peeling of paint were found in some places.The surface of some steel strands was rusty,and the anchor ends were loose.This paper studies the detection and evaluation technology of TV tower based on its special-shaped features and the comprehensive use of high-efficiency prestress,which has guiding significance for the detection of prestressed concrete TV tower in the future.

关 键 词：预应力混凝土电视塔 高耸异形结构 现场检测 振型分解反应谱法 安全性评估 

分 类 号：TU317[建筑科学—结构工程]