Hanging basket and rear anchor connection structure for municipal bridge engineering construction

Abstract

The invention discloses a hanging basket and rear anchor connection structure for municipal bridge engineering construction. The structure comprises a pull rod and a box girder, the box girder is provided with a vertical secondary tension anchor, and the vertical secondary tension anchor comprises an anchor cup, a steel stranded wire, a support nut and an anchor pad plate; the outer wall of the anchor cup is provided with a flange, the lower portion of the flange of the anchor cup is sleeved with a connecting plate, and the connecting plate is provided with a through hole with the inner diameter greater than the outer diameter of the anchor cup and smaller than the outer diameter of the flange; the portion, between the connecting plate and the support nut, of the anchor cup is in threadedconnection with an adjusting plate, and bolts holes are evenly formed in the circumferential direction of the flange and the adjusting plate; the structure further comprises locking bolts which are inthreaded connection with the bolt holes and are used for pressing the connecting plate; the structure further comprises a connecting sleeve, one end of the connecting sleeve is provided with a flangeplate connected with the connecting plate through the bolts; the end, away from the flange plate, of the connecting sleeve is provided with a threaded sleeve, the lower end of the pull rod is in threaded connection with the threaded sleeve, and the upper end of the pull rod is connected with a hanging basket. The structure is used for achieving the reliable connection of the vertical secondary tension anchor with the steel stranded wire and the pull rod with the hanging basket.

Description

technical field [0001] The invention relates to the technical field of construction of hanging baskets in municipal bridge engineering, in particular to a rear anchor connection structure of hanging baskets in municipal bridge engineering construction. Background technique [0002] The box girder construction of the box girder bridge mainly adopts the cantilever pouring method, that is, the cantilever of the bridge is constructed by means of a construction hanging basket. At present, the cantilever construction hanging basket is generally fixed on the box girder that has been constructed, and the rear anchor connection is used between the hanging basket and the box girder to overcome the overturning force. The traditional rear anchor connection is connected by a precision-rolled rebar sleeve connector, that is Pre-embed fine-rolled threaded steel bars in the box girder, and keep the finished-rolled threaded bars perpendicular to the bridge deck. Both ends of the connector ha...

AI Technical Summary

Problems solved by technology

However, since the vertical prestressed tendons of the steel strands are flexible tendons, it is difficult to ensure that the anchorage end backing plate of the vertical prestressed tendons of the steel strands and the anchorage centerline are perpendicular to the bridge deck, that is, the anchorages often appear to be deflected. situation, it is difficult to achieve a reliable connection with the hanging basket rod

Images