| With the development of building industrialization and green building,the prefabricated assembled pipe gallery has been greatly developed and applied in recent years.However,the aseismic research of the underground comprehensive corridor has been mainly focused on the earthquake resistance of the overall structure of the tube corridor,and the research on the seismic research of the prefabricated structure is not enough.The purpose of this paper is to study the seismic response rules of precast assembled tubular Gallery structures to fill gaps in relevant research.Different from the traditional construction of underground structure,the joint of precast and assembled pipe gallery is the main factor affecting the mechanical performance of the comprehensive pipe gallery.In this paper,the ANSYS/LS-DYNA explicit dynamic algorithm is used to study the influence of joint location on the overall seismic behavior of pipe gallery structures.The research shows that the joint is the weak part of the structure,and the reduction of joint stiffness should be taken into account in the design.The block form of prefabricated components is another focus of this paper.In this paper,the different block forms and joint positions of single,double and three cabin tubes are studied,and the response difference under the earthquake action is studied,and the rational partition mode of the structure is proposed.The research shows that the block joints should be set at 0 structural moments and should not be placed in the middle part of the structure.For the large section of the comprehensive pipe gallery,subdivision design is a good choice.Subdivision design can not only reduce the difficulty of construction,but also be more reasonable in force. |
