Design Approach of Shear Properties based Asphalt Pavement Structure of Concrete Bridges

Abstract:

Stress states of deck pavements of several types of concrete bridges under the action of observed load were analyzed systematically with three dimensional finite element method. Critical load positions of different types of bridges were identified. Then, the design control indexes for paving structure design, shear strength standards for mixture at deck pavement layers and flow chart for deck pavement design were proposed by taking shear properties into consideration, and design principle or recommendation on deck pavement structure combination were provided. Seven options for deck pavement structure or materials combination were proposed from the prospects of structural design and material design, and test sections were conducted on four concrete bridges of Shanghai—Jiading—Huzhou Expressway. Current observation results show that all options perform well.