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A platform for research: civil engineering, architecture and urbanism
Steel box girder bridge deck pavement structure and construction method
The invention provides a steel box girder bridge deck pavement structure and a construction method, and relates to the technical field of bridge engineering. The steel box girder bridge deck pavementstructure comprises a panel, a concrete layer, a bonding layer and an asphalt surface layer which are sequentially stacked from bottom to top; the concrete density rho in the concrete layer is less than 2100kg/m < 3 >, and the shrinkage rate s in 360 days is less than 350 mu epsilon; the dynamic viscosity of asphalt in the asphalt surface layer at 60 DEG C is greater than or equal to 70000 Pa.s, the elasticity recovery at 25 DEG C is 97%-99%, and the elasticity recovery at 5 DEG C or below is greater than 80%. The structure is small in shrinkage, high in toughness, good in temperature stability, good in durability, small in performance difference with an orthotropic steel plate, small in deformation and capable of improving the fatigue performance of a bridge, and therefore the structure is not suitable for causing interlayer slippage, fatigue damage and other diseases of bridge deck pavement, and traffic smoothness cannot be affected.
本发明提供了一种钢箱梁桥面铺装结构及施工方法，涉及桥梁工程的技术领域，钢箱梁桥面铺装结构包括由下至上依次叠加设置的面板、混凝土层、粘结层以及沥青面层；混凝土层中的混凝土密度ρ＜2100kg/m3，360天内的收缩率s<350με；沥青面层中的沥青在60℃时的动力粘度≥70000Pa·s，在25℃时的弹性恢复为97％‑99％，在5℃以下时弹性恢复大于80％。上述结构的收缩小、韧性高、温度稳定性好、耐久性好，与正交异性钢板的性能差异较小，变形较小，能够提升桥梁的疲劳性能，因此不宜导致桥面铺装出现层间滑移、疲劳破坏等病害，并且不会影响交通顺畅。
Steel box girder bridge deck pavement structure and construction method
The invention provides a steel box girder bridge deck pavement structure and a construction method, and relates to the technical field of bridge engineering. The steel box girder bridge deck pavementstructure comprises a panel, a concrete layer, a bonding layer and an asphalt surface layer which are sequentially stacked from bottom to top; the concrete density rho in the concrete layer is less than 2100kg/m < 3 >, and the shrinkage rate s in 360 days is less than 350 mu epsilon; the dynamic viscosity of asphalt in the asphalt surface layer at 60 DEG C is greater than or equal to 70000 Pa.s, the elasticity recovery at 25 DEG C is 97%-99%, and the elasticity recovery at 5 DEG C or below is greater than 80%. The structure is small in shrinkage, high in toughness, good in temperature stability, good in durability, small in performance difference with an orthotropic steel plate, small in deformation and capable of improving the fatigue performance of a bridge, and therefore the structure is not suitable for causing interlayer slippage, fatigue damage and other diseases of bridge deck pavement, and traffic smoothness cannot be affected.
本发明提供了一种钢箱梁桥面铺装结构及施工方法，涉及桥梁工程的技术领域，钢箱梁桥面铺装结构包括由下至上依次叠加设置的面板、混凝土层、粘结层以及沥青面层；混凝土层中的混凝土密度ρ＜2100kg/m3，360天内的收缩率s<350με；沥青面层中的沥青在60℃时的动力粘度≥70000Pa·s，在25℃时的弹性恢复为97％‑99％，在5℃以下时弹性恢复大于80％。上述结构的收缩小、韧性高、温度稳定性好、耐久性好，与正交异性钢板的性能差异较小，变形较小，能够提升桥梁的疲劳性能，因此不宜导致桥面铺装出现层间滑移、疲劳破坏等病害，并且不会影响交通顺畅。
Steel box girder bridge deck pavement structure and construction method
钢箱梁桥面铺装结构及施工方法
ZHANG ZHIXIN (author) / LI HONGSHENG (author) / HOU DONGSHUAI (author) / SONG JIAN (author) / LI JINHUI (author) / HU FENGMING (author) / DING QINGJUN (author) / GUO YONGBING (author) / DENG CHAO (author) / FU JUN (author)
2020-11-06
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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