2020年高水平学术报告五：同济大学熊海贝教授江佳斐副教授访问威尼斯欢乐娱人v3676
应威尼斯欢乐娱人v3676的邀请，同济大学熊海贝教授、江佳斐副教授将于2020年1月13日来访威尼斯欢乐娱人v3676，并13日上午为全体师生做有关如下学术讲座及科研交流，欢迎感兴趣的师生参与！
讲座题目：装备式木结构在中国应用的机遇与挑战
Title: The Application of Equipped Wood Structures in China：Opportunities and Challenges
报告人：熊海贝教授
时间2020年1月13日 星期一上午9：30-10：30
Time : Jan 13th 2020, 9:30-10:30 am
地点：威尼斯欢乐娱人v3676会议室B506
报告人简介：
熊海贝博士，同济大学土木工程学院教授、博士生导师，同济大学建筑设计研究院一级注册结构工程师。多年来致力于建筑结构的抗震性能和设计理论研究、复杂建筑结构设计优化、工程结构监测与检测、鉴定与改造加固等工作，近十年来研究重点是木结构、木-混凝土混合结构的理论研究和抗震设计方法研究，以及超高层建筑的结构性能监测。多年来主讲与建设第一批国家精品课程和资源共享课程《建筑结构抗震》、上海市留学生示范课程《高层建筑结构》和《木结构》，以及《创新实践与案例分析》等课程，发表论文近百篇，参编多部国家和地区级规范和图集，获国家级教学成果一等奖、上海市教学成果一等奖及上海市科技进步奖等。
Xiong Haibei, Ph.D., Professor, Doctoral supervisor, College of civil engineering of Tongji university. Registered structural engineer in the Architecture Design and Research Institute of Tongji University (TJADRI). Professor Xiong has been devoted to the research on seismic performance and design theory of structures, design optimization of complex building structures, monitoring and detection of structures, etc. For the past ten years, her research has focused on Theoretical research and seismic design method research, and structural performance monitoring of super high-rise buildings. He has published nearly one hundred papers, and edited numerous national and regional norms and won the first prize of national teaching achievement, the first prize of Shanghai teaching achievement and the Shanghai science and technology progress award.
讲座题目：纤维网格增强新型纤维水泥基材的拉伸及界面性能
Title: Tensile and interfacial properties of textile reinforced ECC
报告人：江佳斐副教授
时间2020年1月13日 星期一 上午10：30-11：30
Time : Jan 13th 2020, 9:30-10:30 am
地点：威尼斯欢乐娱人v3676会议室B506
报告内容提要：
摘要
纤维网格增强水泥砂浆（后简称TRM）是一种可不使用有机胶黏剂的复合材料，可应用于混凝土或砌体结构的加固或壳体结构。由于砂浆的抗拉抗裂性能较弱，TRM在达到砂浆开裂荷载后主要依靠纤维织物提供抗拉能力并伴随着集中区域的裂缝张开。为了改善复合性能，提升该材料在沿海地区使用的耐久性，采用超高性能水泥基材（ECC）替代普通砂浆为较为有效的方式之一。本研究采用超高延性水泥基材（UHDCC）作为基材，研究在高断裂应变（大于网格拉伸应变）基材增强作用下网格与基材的组合性能。通过单向拉伸试验研究纤维网格的几何构造参数、体积率及基材厚度对复合材单轴拉伸性能的影响，通过单面拉拔试验研究纤维束面积、埋伸长度及网格孔洞几何构造参数对纤维束与基材粘结性能的影响。研究表明：纤维网格体积率和纤维网格几何构造参数是影响拉伸性能的主要参数，其抗裂、抗拉延性及强度均能优于TRM；经纬向纤维束的相互作用对纤维网格与基材间的界面性能影响较大，并提出了定量化分析的模型。
Textile reinforced mortar (TRM) is a fabric composite using inorganic matrix. It can be used for concrete and masonry retrofitting or shell structures. Due to the weakness of cracking resistance of mortar, only the textile mesh contributes to the tensile resistance after the mortar cracks, accompanied with increasing of macro-crack width. Up to now, engineering cementitious composite (ECC) is a much better matrix to replace mortar to resolve the shortness of TRM, which will cause durability issue in marine environment. In this study, one kind of ECC, ultra-high ductile cementitious composite (UHDCC), was adopted as the matrix to reinforce the basalt textile mesh. The unidirectional tensile performance and bond behavior were investigated with the change of properties of components. The study shows the volumetric ratio and geometric property of meshes are the two key factors for tensile behavior. The cracking resistance, ductility and strength of the new composite are much better than TRM. For the bond performance, the interaction between the weft and warp yarns is much important. Accordingly, a new bond-slip model with consideration of the weft yarn effect is proposed.
广东省滨海土木工程耐久性重点实验室
2020年1月10日
