乡村水泥路面拼接窄长加宽板受力特性分析  

Analysis on the Mechanical Characteristics of Narrow, Long, and Widening Slabs in Rural Cement Pavement Splicing

作　　者：傅东阳[1] FU Dongyang(School of Civil Engineering,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]福州大学土木工程学院,福建福州350108

出　　处：《佳木斯大学学报（自然科学版）》2024年第10期88-91,124,共5页Journal of Jiamusi University：Natural Science Edition

基　　金：福建省交通厅科技项目(202017)。

摘　　要：福建省农村公路水泥路面多为4.5m×5m的单板单车道,随着交通量的增加,多加宽2m成为双车道。建立有限元模型,研究新旧板缝间摩擦系数、拉杆间距、土基模量等参数下水泥板加宽2m前后的受力变化,发现新旧路基模量差对板底拉应力影响最大,拉杆间距影响不大,但对板缝两侧弯沉差影响最大。The cement pavement panels of rural roads in Fujian Province are mostly in the form of single lanes of 4.55 meters.With the increase of traffic volume,it is currently directly widened by 2 meters to a double lane.This article establishes a finite element model,using parameters such as friction coefficient between new and old slabs,different spacing of pull rods,and different soil modulus as variables,to study the changes in stress before and after widening the cement slab.It is found that the difference in modulus between new and old subgrade is the biggest influencing factor on the tensile stress at the bottom of the slab,and the spacing of pull rods has little effect on the stress,but has a significant impact on the deflection difference on both sides of the slab joint.

关 键 词：农村公路 水泥路面 加宽 拉应力 土基模量 

分 类 号：TU4[建筑科学—土工工程]