Seismic reduction and isolation support for railroad bridge in near-field seismic area

• Main Authors: GU HAILONG, SONG JIANPING, LI ZONGYUAN, LIANG WENWEI, CHEN XINPEI, LUO DENGFA, WANG YONG
• Format: Patent
• Language: Chinese; English
• Published: 15.12.2020
• Subjects: ASSEMBLY OF BRIDGES; BLASTING; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; OR VIADUCTS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

The invention discloses a seismic reduction and isolation support for a railroad bridge in a near-field seismic area. The upper surface of a longitudinal upper base plate is a plane, and the lower surface of the longitudinal upper base plate is a longitudinal concave cylindrical surface; the upper surface of a longitudinal middle base plate is a longitudinal convex cylindrical surface matched withthe lower surface of the longitudinal upper base plate, and the lower surface of the longitudinal middle base plate is a longitudinal concave cylindrical surface; the upper surface of a cross-shapedbase plate is a longitudinal convex cylindrical surface matched with the lower surface of the longitudinal middle base plate; the lower surface of the cross-shaped base plate is a transverse convex cylindrical surface; cylindrical surface bosses A are arranged on the two longitudinal sides of the lower portion of the cross-shaped base plate respectively; the upper surface of the transverse middlebase plate is a transverse