Abstract

A bridge expansion joint structure. The expansion joint is provided with an expansion device (1); the expansion device (1) comprises a cover plate (2) and section steel; the section steel comprises left section steel (31) and right section steel (32) provided on two sides of the expansion joint; the cover plate (2) is detachably connected to the section steel; the cover plate (2) comprises an upper cover plate (21) and a lower cover plate (22); the left section steel (31) and the right section steel (32) are respectively provided with a plurality of first shackles (311) and second shackles (321) arranged at equal intervals; the lower cover plate (22) is provided with a plurality of first hooks (221) and second hooks (222) corresponding to the first shackles (311) and the second shackles (321), respectively; the first hooks (221) and the second hooks (222) are respectively slidably connected to the lower cover plate (22); and a plurality of compression springs (4) are provided under the cover plate (2).

IPC Classes  ?

• E01D 19/06 - Arrangement, construction, or bridging of expansion joints

Abstract

A bridge expansion joint structure. The expansion joint is provided with an expansion device (1); the telescopic device (1) comprises a cover plate (2) and section steel; the section steel comprises first section steel (3) and second section steel (4) provided at two sides of the expansion joint; the cover plate (2) is detachably connected to the section steel; several mounting structures (5) are evenly provided between the cover plate (2) and the section steel; each mounting structure (5) comprises a first connecting member (51), a second connecting member (52), and a plug (53); the lock rings (511) at the tail of the first connecting member (51) and the lock rings (521) at the tail of the second connecting member (52) are arranged in a staggered manner; the plug (53) is inserted from the top of the cover plate (2) and simultaneously inserted into the lock rings (511) at the tail of the first connecting member (51) and the lock rings (521) at the tail of the second connecting member (52), thereby achieving interlocking between the cover plate (2) and the section steel.

IPC Classes  ?

• E01D 19/06 - Arrangement, construction, or bridging of expansion joints

Abstract

Disclosed is a connection structure for an antiseismic bridge, used for connecting adjacent primary beams of a bridge. The bridge comprises piers; a cap beam is fixedly connected to the top of each bridge pier; the upper end of the cap beam is connected to supports, and a primary beam is connected to the top of each support; two adjacent primary beams are defined as the left and right primary beams; the connection structure comprises a steel plate and a plurality of buffer supports; the buffer supports are rubber columns having compression springs sleeved on the outer circumference thereof; and the thickness of the steel plate in the height direction of the primary beam is 0.2-0.4 times the height of the primary beam. The connection structure also comprises fastening components, which comprise concrete anchor blocks and prestressed steel bars. Two sides of both the left and right primary beams are provided with concrete anchor blocks; both ends of each prestressed steel bar are respectively anchored to the concrete anchor blocks of the left and right primary beams on the adjacent sides. The present utility model is provided with buffering and damping parts and fastening components, so that the primary beams is capable of buffering and damping, and has high supporting strength, good durability, and long service life, so that the maintenance and use costs of the bridge are reduced.

IPC Classes  ?

• E01D 19/06 - Arrangement, construction, or bridging of expansion joints
• E01D 101/30 - Metal
• E01D 101/28 - Concrete reinforced prestressed

Abstract

Provided is a bridge expansion joint structure, comprising a bridge body (2, 3) and an expansion joint (1). The expansion joint (1) divides the bridge body (2, 3) into a first bridge body (2) and a second bridge body (3). A first bearing step (21) is formed on the first bridge body (2), and the first bearing step (21) is provided with a first fixed pillar (22). A second bearing step (31) is formed on the second bridge body (3), and the second bearing step (31) is provided with a second fixed pillar (32). Lateral faces of the first and second bearing steps (21, 31) are respectively fixedly connected to a C-shaped steel plate (4). An expansion joint connector (6) is provided between the first bridge body (2) and the second bridge body (3). The expansion joint connector (6) comprises an upper bearing body (61) and a lower supporting body (62), and the upper bearing body (61) and the lower supporting body (62) are both provided with reinforcing ribs (63). A cover plate (7) is provided above the expansion joint (1). Elastic filling materials (8) are filled between the expansion joint (1) and the expansion joint connector (6). The bridge expansion joint structure meets the requirement of road expansion deformation, is structurally secure, has a good bearing capacity, provides a good smooth and comfortable sensation during driving, and is also easy and convenient to install, inspect and maintain.

IPC Classes  ?

• E01D 19/06 - Arrangement, construction, or bridging of expansion joints