Novel orthotropic steel bridge deck without arc-shaped notch and manufacturing method of orthotropic steel bridge deck

Abstract

The invention discloses a novel orthotropic steel bridge deck without an arc-shaped notch and a manufacturing method of the orthotropic steel bridge deck. The novel orthotropic steel bridge deck comprises a panel, U-shaped longitudinal ribs, a transverse partition plate and an inner partition plate, the panel is an upper flange shared by the U-shaped longitudinal ribs and the transverse partitionplate, a UHPC layer and an asphalt wearing layer are sequentially laid on the surface of the panel from bottom to top, reinforcing steel bars and a reinforcing steel bar net are arranged in the UHPC layer, the U-shaped longitudinal rib is welded with the bottom surface of the panel to form a groove-shaped longitudinal rib abdominal cavity, the transverse partition plate is perpendicular to the U-shaped longitudinal rib and is welded with the bottom surface of the panel, a notch for the U-shaped longitudinal rib to penetrate through is formed in the transverse partition plate, and the inner partition plate is welded in the longitudinal rib abdominal cavity and is positioned in the same plane with the transverse partition plate, the inner partition plate is matched with the inner contour ofthe cross section of the U-shaped longitudinal rib, the thickness of the inner partition plate is consistent with that of the transverse partition plate. According to the method, the stress response and deflection of the orthotropic steel bridge deck structure details can be reduced under the action of wheel loads, the fatigue resistance of the structure details is improved, the orthotropic steelbridge deck is prevented from cracking, and damage to steel bridge deck pavement can be avoided.

Description

technical field [0001] The invention relates to the field of steel structure bridge manufacturing, in particular to a novel orthotropic steel bridge deck free from arc cuts and a manufacturing method thereof. Background technique [0002] Orthotropic steel decks began to be used in German bridge construction in the middle of the last century. Due to their light weight and high bearing capacity, this steel deck structure has become the preferred deck form of steel bridges, especially long-span bridges. In order to improve driving comfort and increase tire adhesion, epoxy asphalt concrete (SMA) is usually laid on the orthotropic steel bridge deck, with a thickness of about 6 to 8 cm. [0003] In the structure of orthotropic steel bridge deck, the longitudinal rib is elastically supported by the diaphragm, and the longitudinal rib rotates at the position of the diaphragm under the action of wheel load. In order to release the large stress on the details of the longitudinal rib...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a novel orthotropic steel bridge deck without arc-shaped cuts and its manufacturing method, to solve one or more technical problems in the prior art, and at least provide a beneficial option or create conditions

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