Indoor full- scale cyclic lateral loading experiments of 6 micropiles with different predrilledhole parameters were carried out. From the experiments,their hysteresis curves and skeleton curves,as well as energy dissipation capacity and ductility were obtained to reflect seismic performance. These conclusions will make contribution to the practical application of proposed aseismic semi- integral abutment bridge and provide reference for the hole- predrilling technology in integral abutment bridges.
【基金】
国家自然科学基金资助项目(51278126);
福建省自然科学基金资助项目(2013J01187)
【更新日期】
2016-08-17
【分类号】
U442.55
【正文快照】
0引言为提高半整体式桥台桥梁抗震性能,同时受微型桩具有较好的地震能量吸收功能的启发,本文提出一种带扩孔微型桩耗能体系、路桥整体联接的新型半整体式桥台无伸缩缝桥型,简称“新型半整体式桥台无缝桥梁”,见图1.图1半整体式桥台桥梁台后扩孔微型桩Fig.1 Micropile with pred