Embedded mounting method for reinforcing steel bar concrete box girder construction

Abstract

The invention discloses a flush mounting method of erecting a reinforced concrete box beam, which is characterized by the following steps: (1) a manner of the symmetrical erection is adopted to erect the reinforced concrete box beam; a manner of flush mounting is adopted to erect the last reinforced concrete box beam in the middle; (2) two steel bars are enclosed in a forcing sleeve, the length of each steel bar is smaller than half of the width of the reinforced concrete box beam and the total length of the two bars is less than that of the forcing sleeve; the two steel bars and the forcing sleeve constitute a extension sleeve as a forcing member bar used in erecting the last reinforced concrete box beam; (3) the forcing sleeve is put into hoisting reserved holes of the reinforced concrete box beam, steel bars are respectively inserted into the two hoisting reserved holes and respectively into the two ends of the forcing sleeve. The mounting method of the invention is capable of conveniently erecting the last box beam in the middle into the adjacent box beam in the flush mounting manner and conveniently taking out the two steel bars used for hoisting, which effectively reduces the erection time, shortens the construction period and reduces the construction cost.

Description

technical field [0001] The invention relates to a method for erecting and installing a reinforced concrete box girder in the construction field, in particular to an embedded installation method adopted when erecting a heavy-duty reinforced concrete box girder. Background technique [0002] In the construction of highways, ordinary roads, railways, etc., it is usually necessary to erect reinforced concrete box girders to bear the weight. The beams are erected from one pier to the adjacent pier, extending span by span, forming an integral "bridge". Between two bridge piers, according to the design requirements or technical specifications, it is generally necessary to erect 5, or 6, or 7, or 8 reinforced concrete box girders. The force situation and the safety of the technical specifications for erection must adopt a symmetrical erection method, that is, take the center line of the pier as the symmetrical line, and after erecting a box girder on the left side of the symmetrica...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the deficiencies of the prior art reinforced concrete box girder erection technology that cannot take out two hoisting steel rods, prolonging the erection time, wasting the construction peri

Images