武汉理工大学学报(交通科学与工程版)
武漢理工大學學報(交通科學與工程版)
무한리공대학학보(교통과학여공정판)
Journal of Wuhan University of Technology (Transportation Science & Engineering)
2015年
5期
1010-1012,1016
,共4页
王勋涛%封建湖%王虎
王勛濤%封建湖%王虎
왕훈도%봉건호%왕호
沥青铺装层%防水层%接触分析%剪应力
瀝青鋪裝層%防水層%接觸分析%剪應力
력청포장층%방수층%접촉분석%전응력
asphalt pavement%waterproof layer%contact analysis%shear stress
采用有限元软件ANSYS建立简支箱梁桥的足尺模型,层间采用接触方式进行计算。分析沥青层材料和防水层材料参数变化对防水层剪应力影响,层间不同脱空类型对防水层剪应力的影响。计算结果表明:增加沥青层厚度和弹模均能减少防水层的剪应力;增加防水层的厚度能减少防水层的剪应力,增加防水层弹模使防水层剪应力增加;增加铺装层层间粘聚力能减少防水层的剪应力;防水层与整平层之间存在脱空时,防水层容易破坏。
採用有限元軟件ANSYS建立簡支箱樑橋的足呎模型,層間採用接觸方式進行計算。分析瀝青層材料和防水層材料參數變化對防水層剪應力影響,層間不同脫空類型對防水層剪應力的影響。計算結果錶明:增加瀝青層厚度和彈模均能減少防水層的剪應力;增加防水層的厚度能減少防水層的剪應力,增加防水層彈模使防水層剪應力增加;增加鋪裝層層間粘聚力能減少防水層的剪應力;防水層與整平層之間存在脫空時,防水層容易破壞。
채용유한원연건ANSYS건립간지상량교적족척모형,층간채용접촉방식진행계산。분석력청층재료화방수층재료삼수변화대방수층전응력영향,층간불동탈공류형대방수층전응력적영향。계산결과표명:증가력청층후도화탄모균능감소방수층적전응력;증가방수층적후도능감소방수층적전응력,증가방수층탄모사방수층전응력증가;증가포장층층간점취력능감소방수층적전응력;방수층여정평층지간존재탈공시,방수층용역파배。
The full‐scale model of simply supported box girder bridge was established by the ANSYS software ,interlaminar contact analysis was applied in this model .The influence of the shear stress of the waterproof layer was analyzed with the changes of the upper and lower asphalt layers of material parameters and the changes of the waterproof layer of material parameters .The influence to the shear stress of the waterproof layer was analyzed with the different type of the void area between the layers . Numerical experiments illustrate that :The shear stress of waterproof layer was decreased with the in‐creasing asphalt layer thickness and elastic modulus ;The shear stress of waterproof layer was de‐creased with the increasing waterproof layer thickness ,but increased with the increasing elastic modu‐lus of the w aterproof layer ;T he shear stress of w aterproof layer w as decreased as the interlaminar co‐hesive force of asphalt pavement was increased ;If the void area exists between the waterproof layer and the levelling course ,the w aterproof layers could be easily damaged .