Research on Construction Technology of Fixation Stent Installing Comb Expansion Joint

Feng Liu; Su Ping Li; Yun Quan Chen; Kang Hou

doi:10.4028/www.scientific.net/KEM.648.53

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 648Research on Construction Technology of Fixation...

Research on Construction Technology of Fixation Stent Installing Comb Expansion Joint

Abstract:

The hot-rolling-whole-molded and comb-type-designed bridge expansion devices are widely used in the urban and highway bridges, owning the characteristics of large expansion allowance and small burial depth. Whereas using traditional craft to install comb-type expansion joint, such phenomenon like settlement, water seepage, bumping and noise in driving would happen with slow construction. Through continuous improvement for many years, Jinan Urban Construction Group has developed a full construction technology of installing comb expansion joint based on fixation stent by using tailor-made location frame to integrally move the anchor bolt group into the groove for firm weld with embedded steel, matching with moving lifting tool. Through this construction technology, the efficiency of construction is improved, the construction period is shortened, and the smoothness of asphalt after installing comb plate would meet the design requirements, also such quality defects like bumping and abnormal sound would be precluded. hot-rolling-whole-molded and comb-type-designed bridge expansion devices

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Periodical:

Key Engineering Materials (Volume 648)

Pages:

53-60

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.648.53

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Online since:

June 2015

Authors:

Feng Liu*, Su Ping Li, Yun Quan Chen, Kang Hou

Keywords:

Comb Expansion Joint, Construction Technology, Fixation Stent, Moving Lifting Tools

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* - Corresponding Author

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