摘要
以某大跨连续刚构桥为实例,根据相似准则,在实桥环境条件下,采用与实桥相同的材料,建立几何缩尺比1∶40的三跨连续刚构模型和简支梁模型。分析2个缩尺模型桥的混凝土收缩徐变变化规律,与预测模型对比分析,验证现行规范的收缩徐变模型。
Taking a long-span continuous rigid frame bridge as an example,according to the similarity criterion,a three-span continuous rigid frame model and asimply supported beam model with geometric scale of 1∶40 are established by using the same material and cases as the real bridge.By analyzing the law of concrete shrinkage and creep of two scale model bridges and comparing with the prediction model,the existing shrinkage and creep model is verified.
作者
熊志朋
陈瑛
黄福伟
XIONG Zhipeng;CHEN Ying;HUANG Fuwei(Jiangxi Transportation Science Research Institute Co., Ltd., Nanchang 330200, China;China Merchants Chongqing Communications Technology Research & Design Institute Co.,Ltd., Chongqing 400067, China)
出处
《交通科技》
2021年第3期9-12,共4页
Transportation Science & Technology
关键词
连续刚构桥
收缩徐变
缩尺模型
预测模型
continuous rigid frame bridge
shrinkage and creep
scale model
prediction model
