Steel-super high toughness concrete lightweight combined beam pier top bridge surface continuous structure and construction method thereof

Abstract

The invention discloses a steel-super high toughness concrete lightweight combined beam pier top bridge surface continuous structure. The steel-super high toughness concrete lightweight combined beampier top bridge surface continuous structure is arranged between adjacent steel box beam bridge surface plates, combines the adjacent bridge surface plates together to form a continuous whole, and comprises inverted-T ribs, inverted-T rib web connecting plates, inverted-T rib bottom plate connecting plates and top plate connecting plates. The multiple inverted-T ribs are transversely arranged on the bottom surface of the joint of the two bridge surface plates at intervals, and the inverted-T ribs on the two bridge surface plates are in one-to-one correspondence. Webs of the two corresponding inverted-T ribs are connected through the corresponding inverted-T rib web connecting plate; bottom plates of the two corresponding inverted-T ribs are connected through the corresponding inverted-T rib bottom plate connecting plate; and between the adjacent inverted-T ribs, the two bridge surface plates are connected through the top plate connecting plates. According to the continuous structure, adjacent box beams are connected as a whole through the inverted-T ribs and the connecting plates, under the effect of an earthquake, the damage mode of the continuous structure is that bolts are sheared off, in restoration after the earthquake, only the sheared-off high-strength bolts need to be replaced, and STC is partially repaired, so that repair is easy and convenient.

Description

technical field [0001] The invention relates to a bridge deck continuous structure and a construction method thereof. Background technique [0002] Simply supported girder bridge is a girder bridge whose main load-bearing structure is a girder whose two ends are respectively supported on a movable support and a hinged support. It is the earliest and most widely used bridge shape among girder bridges. Fixed structure, under normal circumstances, one end of simply supported beam can be freely deformed, so no redundant internal force will be generated, its structure is simple, easy to erect, and the internal force of the structure is not affected by foundation deformation and temperature change. However, there are many expansion joints on the bridge deck of simply supported beam bridges, which makes driving uncomfortable. In order to effectively reduce the number of deck expansion joints of simply supported girder bridges, continuous bridge deck structures are widely used. At...

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Problems solved by technology

At the same time, simply supported girder bridges are weak in seismic resistance. Under the action of external forces beyond the design range, the longitudinal deformation of the bridge is too large, which is easy to cause damage to the continuous structure of the bridge deck. even fall off the stand

After the existing bridge deck continuous structure is damaged, maintenance is inconvenient and costly

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