建筑物移位托換技術(shù)研究進展*
張鑫，岳慶霞，賈留東
- 摘 要
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（山東建筑大學(xué)山東省建筑結(jié)構(gòu)鑒定加固與改造重點實驗室， 濟南 250101）
［摘要］在建筑物移位、增層等改造中，托換技術(shù)是關(guān)鍵環(huán)節(jié)。首先對建筑物移位技術(shù)的發(fā)展進行了概述，然后分別對砌體和框架柱移位托換技術(shù)的主要進展進行總結(jié)。砌體托換結(jié)構(gòu)以混凝土托換結(jié)構(gòu)及鋼托換結(jié)構(gòu)為主，基本符合墻梁計算模型?？蚣苤袚Q結(jié)構(gòu)以四面包裹式托換為主，具有空間受力特性，以托換梁的破壞或梁柱結(jié)合面沖切破壞為主。針對目前托換技術(shù)研究的現(xiàn)狀，進一步研究托換結(jié)構(gòu)的破壞機制，建立托換結(jié)構(gòu)的承載力計算公式，對托換技術(shù)的后續(xù)研究及工程應(yīng)用必將起到推動作用。［關(guān)鍵詞］建筑移位; 砌體托換; 框架柱托換; 加固改造中圖分類號：TU318 文獻標(biāo)識碼：A 文章編號：1002-848X(2016)05-0091-06
Research progress of the underpinning technique in building displacementZhang Xin, Yue Qingxia, Jia Liudong(Shandong Provincial Key Laboratory of Appraisal and Retrofitting in Building Structures, Shandong Jianzhu University, Jinan 250101, China)Abstract:The underpinning technique is a key process in the building moving and story-adding retrofitting. The development of the building moving technique was introduced briefly first and the corresponding underpinning techniques in masonry and frame column structures were then concluded. The concrete underpinning structure and steel underpinning structure used in the masonry structure basically met wall-beam calculation model. The four-sided wrapped underpinning structure is often adopted in frame column, which has spatial mechanical properties and the failure of the frame column underpinning mainly features the underpinning beam failure or the punching failure on the beam-column interface. According to the state-of-art of the underpinning technique researches, the failure mechanism of the underpinning structure need to be further studied and the calculating formula of bearing capacity of the underpinning structure to be established, which would promote the following researches and engineering applications of underpinning technique.Keywords:building displacement; masonry underpinning; frame column underpinning; strengthening and transformation
* 國家自然科學(xué)基金項目（51278287），教育部創(chuàng)新團隊（IRT13075）。作者簡介：張鑫，教授，博士生導(dǎo)師，Email：zhangxin@sdjzu.edu.cn。
