零陵宋城东门拱券的损伤机理与加固技术研究  

Study on the Damage Mechanism and Reinforcement Technology of the Eastern Gate Arch of Song City in Lingling

作　　者：李辉政 龚健 LI Huizheng;GONG Jian(Yongzhou Vocational and Technical College,Yongzhou 425100,Hunan,China)

机构地区：[1]永州职业技术学院,湖南永州425100

出　　处：《建筑施工》2024年第4期519-523,共5页Building Construction

基　　金：2023湖南省自然科学基金资助项目(2023JJ50428)。

摘　　要：零陵古东门遗址,宋明两朝城门共处,至今为全国孤例。遗存至今的宋城东门变形严重、裂缝超宽、支护濒临失效,拱券随时有坍塌可能。基于文献成果和勘测数据,对宋城东门的损伤机理进行系统分析,提出清除券上再生树桩、设置新钢结构支护、对拱券实施渗透灌浆等方案。运用STS/SPASCAD和PMSAP进行建模、计算、比较分析,确定以型钢HW100 mm×100 mm×8 mm×10 mm为拱形支护刚架,并对支护刚架安装和拱券破损部位修缮进行探讨。The site of the ancient eastern gate of Lingling,where the city gates of the Song and Ming Dynasties coexisted,remains the unique case of its kind in China.However,the eastern gate of the Song city,which has been preserved to this day,is severely deformed,with excessively wide cracks,and its support system is on the verge of failure and the archway is at risk of collapse at any moment.Based on literature findings and survey data,the damage mechanism of eastern gate of the Song city is systematically analyzed.It proposed solutions such as removing regenerated tree stumps from the arch,setting up new steel structural supports,and implementing permeation grouting to the arch STS/SPASCAD and PMSAP are used for modeling,calculation,and comparative analysis.The steel HW100 mm×100 mm×8 mm×10 mm is determined to be the arch support frame.The installation of the support frame and the repair of the damaged parts of the arch are also discussed.

关 键 词：零陵 宋城东门 拱券 损伤机理 支护 拱形刚架 

分 类 号：TU746[建筑科学—建筑技术科学]