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緩粘結(jié)預(yù)應(yīng)力研究綜述*
熊學(xué)玉1,2,肖啟晟1,李曉峰1,3
摘 要

(1 同濟大學(xué)預(yù)應(yīng)力研究所, 上海 200092;2 同濟大學(xué)先進土木工程材料教育部重點實驗室, 上海 200092; 3 蘇北鐵路有限公司, 南京 210042)

[摘要]緩粘結(jié)預(yù)應(yīng)力技術(shù)是繼無粘結(jié)和有粘結(jié)預(yù)應(yīng)力技術(shù)之后發(fā)展起來的一項新的預(yù)應(yīng)力技術(shù),其結(jié)合了無粘結(jié)和有粘結(jié)預(yù)應(yīng)力在施工和受力性能上的優(yōu)點,又規(guī)避了不足,具有更廣泛的應(yīng)用范圍。從緩粘結(jié)預(yù)應(yīng)力技術(shù)的研究背景出發(fā),簡要介紹了這項新型預(yù)應(yīng)力技術(shù)在國內(nèi)外的應(yīng)用情況,并主要就緩粘結(jié)材料、粘結(jié)性能、施工性能、靜力和疲勞性能這幾個方面對緩粘結(jié)預(yù)應(yīng)力體系的研究進展做出介紹、梳理和評述。結(jié)合已有的研究成果及該技術(shù)發(fā)展歷程,對其未來在粘結(jié)材料性能、筋材規(guī)格種類、構(gòu)件的防災(zāi)及疲勞性能方面闡述了幾點展望。

[關(guān)鍵詞]緩粘結(jié)預(yù)應(yīng)力; 預(yù)應(yīng)力混凝土; 研究進展

中圖分類號:TU378-2文獻標(biāo)識碼:A文章編號:1002-848X(2018)08-0083-08

 

Review of research on retard-bonded prestressed 

Xiong Xueyu1,2, Xiao Qisheng1,  Li Xiaofeng1,3

(1 Institute of Prestressed Structures, Tongji University, Shanghai 200092, China; 2 Key Laboratory of Advanced Civil Engineering Materials (Tongji University), Ministry of Education, Shanghai 200092, China;3 Subei Railway Co., Ltd., Nanjing 210042, China)

Abstract:Retard-bonded prestressed technique is a new prestressed technique developed after bonded and unbonded prestressed techniques, which combines the advantages and overcome the disadvantages of both of them in construction and mechanical performance. It has wider range of application. Starting from the research background of retard-bonded prestressed technique, the application of this new type of prestressed technique at home and abroad was briefly introduced, and the research progress in retard-bonded prestressed system was introduced, reviewed and commented in perspectives including retard-bonded materials, bonding properties, construction performance, static and fatigue properties. Based on the existing research results and the development history of the technique, the future prospect was discussed in terms of bonding material properties, types of steel bars, disaster prevention and fatigue properties of components.

Keywords:retard-bonded prestressed; prestressed concrete; research orientation

 

*住房城鄉(xiāng)建設(shè)部研究開發(fā)項目(2016-K5-020)。

 

作者簡介:熊學(xué)玉,博士,教授,博士生導(dǎo)師,Email:xueyu@#edu.cn。

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