High-strength anti-fatigue modular bridge expansion device and construction method

• Main Authors: YU DANBO, DING JIAN, XU SU, HAN LINGXIA, LYU JIANHUA, SHANG LIANGRONG, DING YONG, YU JINGYUAN
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2019
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The invention discloses a high-strength anti-fatigue modular bridge expansion device and a construction method. The high-strength anti-fatigue modular bridge expansion device comprises a roadway displacement box; boundary beams are correspondingly arranged on the two sides of the roadway displacement box; a plurality of anchor plate welding pieces are uniformly distributed on the external side walls of the boundary beams; one or multiple center sills are arranged between the two boundary beams; cross beams perpendicular to the center sills horizontally penetrate into the roadway displacement box; the high-strength anti-fatigue modular bridge expansion device is characterized in that upper expanded special supporting cushion blocks are welded and connected between the center sills and the cross beams; at least one center sill supporting rib plate is fixedly arranged on the two sides, in the length directions of the center sills, of the upper expanded special supporting cushion blocks; the top edges of the cent