钢桥面与沥青混凝土铺装界面剪切性能研究
毕业论文关键词：钢桥面铺装 界面 剪切性能 抗剪强度准则
Title Experimental study on the shear behavior of interface betweensteel bridge deck and asphalt pavement
Abstract With the development of highway transportation construction, bridge is an importantpart of highway transportation. However, most researchers only focused on the bridgeitself, a few researchers paid attention to the pavement structure of bridge deck.The destruction of the bonding layer will directly affect the coordination of pavementsystem, speeding up the wastage of the bridge thus the research of the shear propertiesof bonding layer on steel deck plate paving interface is of great significance.The shear behavior of three types of steel-pavement interface under the influencesof several critical factors including temperature, normal stress and tack coatmaterials were investigated using the steel-concrete interface shear test. Much canbe leaned according to the results obtained in this study. Results show that:1.Experiments of the three kinds of interface have different shear failure type.2.The inter-facial shear strength ,residual shear strength and shear slip increasedwith the development of the normal stress level.3.The Interface shear stress and shear displacement curve have resilient destructionfeatures,and presents four stages of development.4.Epoxy resin, epoxy asphalt (not cure) interface under the condition of thetemperature of 60 ℃ all have good mechanical properties while the epoxy bitumen(curing) interface shear performance under the condition of the temperature of 60 ℃was poor.
Keywords pavement on steel bridge decks; interface; shear behavior; shear failurelaw
目次
1绪论·1
1.1国内外研究现状·1
1.2研究内容·4
1.3技术路线5
2原材料试验与试件制备·6
2.1原材料试验·6
2.2试件制备·14
2.3小结·19
3钢桥面与铺装界面剪切性能试验装置与试件20
3.1钢桥面与铺装界面直剪试验20
3.2界面剪切破坏形态·24
3.3界面滑移的演化规律26
4钢桥面与铺装界面剪切性能试验研究·32
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