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（1 同濟(jì)大學(xué)預(yù)應(yīng)力研究所， 上海 200092； 2 同濟(jì)大學(xué)先進(jìn)土木工程材料教育部重點(diǎn)實(shí)驗(yàn)室， 上海 200092）

［摘要］簡(jiǎn)要介紹了箱梁橋腹板斜裂縫問題和近年來快速發(fā)展的緩粘結(jié)預(yù)應(yīng)力技術(shù)，并從緩粘結(jié)預(yù)應(yīng)力的技術(shù)特點(diǎn)出發(fā)論述了將緩粘結(jié)低回縮預(yù)應(yīng)力短索應(yīng)用于箱梁橋腹板的優(yōu)勢(shì)。從有效預(yù)應(yīng)力計(jì)算的角度，比較了現(xiàn)有精軋螺紋鋼體系和基于測(cè)控一體的緩粘結(jié)低回縮預(yù)應(yīng)力短索體系的差別，給出了基于測(cè)控一體的緩粘結(jié)低回縮預(yù)應(yīng)力短索體系的張拉方法。

［關(guān)鍵詞］腹板斜裂縫； 緩粘結(jié)低回縮預(yù)應(yīng)力短索； 測(cè)控一體

中圖分類號(hào)：TU378-2文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)08-0103-05

Research on retard-bonded low-retraction prestressed short tendons system based on integrated measurement and control technology

Xiong Xueyu1,2, Zhang Yifang1

(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)

Abstract:The problem of oblique cracks in webs of box girder bridge and the development of retard-bonded prestressed technique in recent years were briefly introduced. The advantages of applying the retard-bonded low-retraction prestressed short tendons to the webs of box girder bridge were discussed from the technical characteristics. From the point of view of effective prestressing calculation, the difference between the finished deformed steel bar system and the retard-bonded low-retraction prestressed short tendons system based on integrated measurement and control technology were compared. The tensioning method of the retard-bonded low-retraction prestressed short tendon system based on integrated measurement and control technology was provided.

Keywords:oblique cracks in web; retard-bonded low-retraction prestressed short tendon; integrated measurement and control technology

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