会议论文集名称：
IOP Conference Series-Materials Science and Engineering
摘要：
Building Information Modeling(BIM)is a building modeling technology based on the relevant information data of the construction project.It is an advanced technology and management concept,which is widely used in the whole life cycle process of planning,design,construction and operation.Based on BIM technology,transportation construction project collaborative management can have better communication through authenticity simulation and architectural visualization and can obtain the basic and real-time information such as project schedule,engineering quality,cost and environmental impact etc.The main services of highway construction management are integrated on the unified BIM platform for collaborative management to realize information intercommunication and exchange,to change the isolated situation of information in the past,and improve the level of information management.The final BIM model is integrated not only for the information management of project and the integration of preliminary documents and design drawings,but also for the automatic generation of completion data and final accounts,which covers the whole life cycle of traffic construction projects and lays a good foundation for smart highway construction.
作者机构：
[赵明华; 肖尧; 徐卓君; 杨超炜; 胡倩] Institute of Geotechnical Engineering, Hunan University, Changsha;Hunan;410082, China;[刘建华] School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha;410076, China
作者机构：
[赵明华; 肖尧; 徐卓君; 杨超炜; 胡倩] Institute of Geotechnical Engineering, Hunan University, Changsha;410082, China;[刘建华] School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha;410076, China;[赵明华; 肖尧; 徐卓君; 杨超炜; 胡倩] 410082, China
作者机构：
[李赛; 汪优; 秦志浩] School of Civil Engineering, Central South University, Changsha, Hunan, 410075, China;[刘建华] School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410114, China;[汪优] Key Laboratory of Dynamics and Reliability of Structures, College of Hunan Province, Xiangtan University, Xiangtan, Hunan, 411105, China
通讯机构：
School of Civil Engineering, Central South University, Changsha, Hunan, China
摘要：
分析了激光动态弯沉系统测试原理及其动态弯沉计算方法，针对已建成运营多年的高速公路由于施工、地质地形、交通流量、荷载等各种因素对路面弯沉的影响，路面的弯沉分布差异性变大，呈现偏正态分布的特点，基于激光动态弯沉测试技术开展了不同的测试速度与贝克曼梁的弯沉测试对比试验，试验结果表明：激光动态弯沉系统在相同的路面结构下采用40 km ／h、60 km ／h、80 km ／h 的速度测试与贝克曼梁仪所测试的数据均具有很好的相关性，相关系数分别为0．952、0．954、0．952，测试速度对于激光动态弯沉系统影响不大，其60 km ／h 测试速度与贝克曼梁仪的匹配性更好，由于采用激光动态弯沉测试方法得到的数据更加全面，其评价结果更加精确，具有一定的理论和工程应用价值。
作者机构：
[夏栋舟; 刘瀛之] School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha;410114, China;[刘建华] School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha;[夏栋舟; 刘瀛之; 刘建华] 410114, China
通讯机构：
School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha, China
摘要：
In order to study bearing characteristics of bridge pile at steep slope under complex loads in mountians, according to double pile-column bridge piers engineering at steep slope and test models in laboratory, finite element analysis of pile-column bridge piers was carried out using software ADINA under different loadings, such as horizontal loading in the longitudinal direction along bridge, vertical loadings, slope top loadings and complex loadings. The numerical simulation results show that displacements of front pile pier top and back pile pier top are different under horizontal loadings in the longitudinal direction along bridge or vertical loadings, the displacements of front pile pier top are higher than those of back pile pier top, and its difference increases with the increase of loadings. Vertical displacements will also appear under slope top loadings, and displacements of front pier top are higher than those of back pier top too, while its difference reduces with the increase of loadings. Displacements of both front pile pier top and back pile pier top under comlex loading are larger than those under single loading.
作者机构：
[刘建华] Eng. Res. Ctr. of Catastrophic Prophylaxis and Treatment of Road and Traffic Safety of Min. of Educ., Changsha University of Science and Technology, Changsha 410004, China;[钟鹍; 付康林] Hunan Huagang Communications Planning and Design Research Institute, Changsha 410076, China;[汪优] School of Civil Engineering, Central South University, Changsha 410075, China;[刘建华] School of Communication and Transportation Engineering, Changsha University of Science and Technology, Changsha 410004, China
通讯机构：
Eng. Res. Ctr. of Catastrophic Prophylaxis and Treatment of Road and Traffic Safety of Min. of Educ., Changsha University of Science and Technology, China
