[1]郭成超,张顺杰,周鸿昌,等.移动荷载作用下机场复合道面力学响应分析[J].郑州大学学报(工学版),2023,44(04):113-119.[doi:10.13705/j.issn.1671-6833.2023.01.015]
　GUO Chengchao,ZHANG Shunji,ZHOU Hongchang,et al.Mechanical Response Analysis of Airport Composite Pavement under Moving Load[J].Journal of Zhengzhou University (Engineering Science),2023,44(04):113-119.[doi:10.13705/j.issn.1671-6833.2023.01.015]

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移动荷载作用下机场复合道面力学响应分析()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

44

期数:

2023年04期

页码:

113-119

栏目:

出版日期:

2023-06-01

文章信息/Info

Title:

Mechanical Response Analysis of Airport Composite Pavement under Moving Load

作者:

郭成超¹; 2; 张顺杰¹; 周鸿昌²; 刁岳亮¹; 闫卫红¹; 3

1.郑州大学 水利科学与工程学院,河南 郑州 450001, 2.中山大学 土木工程学院,广东 广州 510275, 3.河南省机场集团有限公司,河南 郑州 451163

Author(s):

GUO Chengchao; ZHANG Shunji; ZHOU Hongchang; DIAO Yueliang; YAN Weihong

School of Water Conservancy Science and Engineering, Zhengzhou University, 450001, Zhengzhou, Henan, School of Civil Engineering, Sun Yat -sen University, Guangzhou 510275, School of Water Conservancy Science and Engineering, Zhengzhou University, Henan Zhengzhou 450001, School of Civil Engineering, Sun Yat -sen University, Guangzhou Guangzhou 510275, Zhengzhou University Water Conservancy Science and Engineering College, Henan Zhengzhou 450001, Henan Airport Group Co., Ltd., Henan Zhengzhou 451163

关键词:

复合道面;  多层加铺;  有限元模型;  移动荷载;  力学响应

Keywords:

composite pavement;  multi-layer overlay;  finite element model;  moving load;  mechanical response

分类号:

U416.223；V351.11

DOI:

10.13705/j.issn.1671-6833.2023.01.015

文献标志码:

A

摘要:

为了研究复合道面的力学特性,以中原地区某机场加铺改造项目为研究对象,建立了复合道面有限 元模型。 通过建立的复合道面监测系统,提取出了道面在目标机型作用下的力学响应,并与模拟数据进行对 比,验证了模型的合理性。 在移动荷载作用下,分析了道面在考虑不同机型、不同层间结合状态及不同水平 力等因素下的力学响应。 研究发现,道面在 B737-800、B767-300ER 和 B777-300ER 这 3 种机型作用下,沥青加 铺层的剪应力最大值出现在上面层,并且随着轮数的增加,道面力学指标逐渐增加,其中沥青层底横向拉应 变与水泥混凝土板底拉应力的变化比较明显;随着层间结合系数的增加,道面力学指标呈减小趋势,沿着道 面深度方向,其影响程度逐渐减小;在有紧急水平制动力时,沥青层间最大剪应力增加了 11. 84%,沥青层底 横向最大拉应变增加了 6. 05%,纵向拉应变增加了 9. 68%。

Abstract:

In order to study the mechanical properties of the composite pavement, a finite element model of the composite pavement is established based on the overlay reconstruction project of an airport in the central plains region. Through the established composite pavement monitoring system, the mechanical response of the pavement under the action of the target aircraft type is extracted and compared with the simulation data to verify the rationality of the model. Under the action of moving load, the mechanical response of pavement considering different types of aircraft, different interlayer bonding states and different horizontal forces is analyzed. It is found that under the action of B737-800, B767-300ER and B777-300ER, the maximum shear stress of asphalt overlay appears in the upper layer, and with the increase of the number of rounds, the mechanical index of pavement gradually increases, in which the transverse tensile strain at the bottom of asphalt layer and the tensile stress at the bottom of cement concrete slab change significantly; With the increase of interlayer bonding coefficient, the pavement mechanical index shows a decreasing trend, and its influence degree gradually decreases along the pavement depth direction; When there is emergency horizontal braking force, the maximum shear stress between asphalt layers increases by 11. 84%, the maximum transverse tensile strain at the bottom of asphalt layer increases by 6. 05%, and the longitudinal tensile strain increases by 9. 68%.

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