Composite bridge design and pile freeze back time test in cold and high-altitude permafrost region.pdf
After sixty years service of Qinghai-Tibet Road, highway joining Golmud and Lhasa was aboutto build. The design scheme for bridge constructed in cold and high-altitude environment needed to beanalyzed. Given the complicated geological and ecological conditions plus high seismic-risk, steelconcreteco...
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| Format: | Conference Object |
| Language: | unknown |
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figshare
2019
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| Online Access: | https://dx.doi.org/10.6084/m9.figshare.8281100 https://figshare.com/articles/Composite_bridge_design_and_pile_freeze_back_time_test_in_cold_and_high-altitude_permafrost_region_pdf/8281100 |
| Summary: | After sixty years service of Qinghai-Tibet Road, highway joining Golmud and Lhasa was aboutto build. The design scheme for bridge constructed in cold and high-altitude environment needed to beanalyzed. Given the complicated geological and ecological conditions plus high seismic-risk, steelconcretecomposite bridge was recommended. An integral concrete-steel composite girder (ICG)scheme for permafrost region application was proposed, whose highlights mainly included millfabrication,overall-girder-erection, fast construction, less labour consumed by cast-in-situ. Field testfor pile freeze back in permafrost region was carried out to investigate the solid bond formation time.Freeze back test was in the backdrop of the construction of Chala Ping Bridge. Pile freeze back fieldtest could be a practical reference for the small-span bridge construction schedule drafting inpermafrost region. |
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