CN-115701465-B - Steel bridge deck pavement system and construction method thereof

CN115701465BCN 115701465 BCN115701465 BCN 115701465BCN-115701465-B

Abstract

The invention discloses a steel bridge deck pavement system and a construction method thereof. The method comprises the following steps of S1, dividing a steel bridge deck pavement system into a main bridge deck and an approach bridge deck, S2, dividing the main bridge deck into six steel panels, carrying out the following construction procedures of shear pin welding, reinforcing steel bar net paving, ultra-high performance concrete pouring and maintenance, S3, paving a main bridge deck abrasion layer, S4, dividing the approach bridge deck into a first approach bridge deck and a second approach bridge deck, and carrying out the following construction procedures of concrete anti-collision wall pouring construction on two sides of the approach bridge deck, shear pin welding, reinforcing steel bar net paving, ultra-high performance concrete pouring and maintenance, S5, paving the first approach bridge abrasion layer, and S6, paving the second approach bridge abrasion layer. The invention can reasonably process the steel bridge deck pavement system, meet the construction period requirement, improve the compression resistance and the shear strength of the pavement layer, ensure the pavement layer not to flow and accept distribution in the pouring process, and ensure the thickness of the pavement layer.

Inventors

FU JUN
ZHAO YUFU
BAO LIANFAN
CAI XIAOYING
CHEN JIE
Li Pengsen
WU WENJIE
CHEN CHEN

Assignees

宏润建设集团股份有限公司

Dates

Publication Date: 20260505
Application Date: 20210802

Claims (10)

1. The construction method of the steel bridge deck pavement system is characterized by comprising the following steps of: S1, dividing the steel bridge deck pavement system into a main bridge deck and an approach bridge deck; S2, dividing the main bridge surface into six steel panels, wherein the six steel panels are distributed in a rectangular array of two rows and three columns, and sequentially carrying out the following construction procedures on the six steel panels according to the sequence of the middle and the two sides, namely (1) carrying out sand blasting rust removal treatment on the surfaces of the steel panels and welding shear nails; the method comprises the steps of (1) arranging reinforcing steel bars at joints of two adjacent steel panels, wherein the reinforcing steel bars at the joints of the two adjacent steel panels are arranged parallel to the transverse steel bars and staggered with the transverse steel bars, arranging the reinforcing steel bars at the joints of the two adjacent steel panels in parallel with the longitudinal steel bars and staggered with the longitudinal steel bars, and arranging a tooth mouth type end die at the reinforcing steel bars only, wherein the tooth mouth type end die is provided with positioning bayonets matched with the diameters of the transverse steel bars, the longitudinal steel bars and the reinforcing steel bars, so that the tooth mouth type end die is sleeved on the transverse steel bars, the longitudinal steel bars and the reinforcing steel bars through the positioning bayonets, the tooth mouth type end die comprises a plurality of convex shapes and concave shapes, the convex shapes and the concave shapes are alternately arranged along the transverse direction to form a wave shape with the same length and the same length as the convex shapes and the concave shapes; s3, paving a main bridge deck wearing layer on the main bridge deck ultra-high performance concrete paving layer; S4, dividing the bridge approach surface into a first bridge approach surface and a second bridge approach surface, and respectively carrying out the following construction procedures on the first bridge approach surface and the second bridge approach surface in sequence, wherein (1) concrete anti-collision wall pouring construction is carried out on the two sides of the bridge approach surface, (2) sand blasting rust removal treatment is carried out on the surface of the bridge approach surface and shear nails are welded, (3) transverse steel bars and longitudinal steel bars are paved on the bridge approach surface to form grid structure layers which are staggered with each other, and (4) ultra-high performance concrete pouring and curing are carried out on the bridge approach surface with the grid structure layers in the procedure (3) to form a first bridge approach surface ultra-high performance concrete pavement layer or a second bridge approach surface ultra-high performance concrete pavement layer; S5, paving a first bridge approach abrasion layer on the first bridge approach surface ultra-high performance concrete pavement layer; and S6, paving a second bridge approach abrasion layer on the second bridge approach surface ultra-high performance concrete pavement layer.
2. The construction method according to claim 1, wherein the six steel panels are a first steel panel, a second steel panel, a third steel panel, a fourth steel panel, a fifth steel panel and a sixth steel panel, and the joints formed by the steel panels in the first row and the steel panels in the second row are cast in a staggered manner.
3. The construction method according to claim 2, wherein the steel panels in the first row are a first steel panel, a second steel panel, and a third steel panel, the first steel panel, the second steel panel, and the third steel panel have dimensions of 11.5m×163m, 11.5m×153m, and 11.5m×151m, respectively, and the steel panels in the second row are a fourth steel panel, a fifth steel panel, and a sixth steel panel, the fourth steel panel, the fifth steel panel, and the sixth steel panel have dimensions of 11.5m×157m, 11.5m×153m, and 11.5m×157m, respectively.
4. The construction method according to claim 1, wherein when the spacing between the reinforcing bars is 100mm, the reinforcing bars are arranged in both of the convex shape and the concave shape, and when the spacing between the reinforcing bars is 350mm, the reinforcing bars are arranged in only the convex shape or the concave shape, and wherein when the reinforcing bars are arranged in only the convex shape, the convex lateral direction is provided with a positioning bayonet fitting the diameters of the longitudinal bars and the reinforcing bars, the concave lateral direction is provided with a positioning bayonet fitting the diameters of the longitudinal bars, and when the reinforcing bars are arranged in only the concave shape, the convex lateral direction is provided with a positioning bayonet fitting the diameters of the longitudinal bars and the reinforcing bars.
5. The construction method according to claim 4, wherein in the step S2, a tooth mouth type end die is provided at the joint of two adjacent steel panels before the ultra-high performance concrete is poured, and the tooth mouth type end die is removed after the pouring of one of the two adjacent steel panels is completed, and then the next steel panel is poured.
6. The construction method according to claim 1, wherein the lateral length refers to a length in accordance with a direction of the lateral reinforcing bars, and the longitudinal length refers to a length in accordance with a direction of the longitudinal reinforcing bars.
7. The construction method according to claim 1, wherein the step S3 comprises the step of paving the main bridge deck wearing layer on the main bridge deck ultra-high performance concrete paving layer by adopting a modified epoxy bonding layer, wherein the main bridge deck wearing layer adopts asphalt mixture.
8. The construction method according to claim 1, wherein the step S5 of laying a first approach wearing layer and the step S6 of laying a second approach wearing layer each include the steps of: The first bridge approach surface ultra-high performance concrete pavement layer or the second bridge approach surface ultra-high performance concrete pavement layer is subjected to shot blasting treatment; B, scraping resin asphalt EBCL after shot blasting treatment, and then spreading broken stone to form a waterproof anti-slip bonding layer; coating RA resin asphalt cement on the waterproof anti-slip bonding layer to form an RA resin asphalt bonding layer, paving a resin asphalt mixture, curing and blasting to form a resin asphalt mixture layer; and D, finally coating EBCL cementing materials, spreading broken stone, and forming a waterproof and anti-slip cover layer after solidification to form the first bridge approach wearing layer or the second bridge approach wearing layer.
9. The steel bridge deck pavement system is characterized by comprising a main bridge deck and an approach bridge deck, wherein the main bridge deck comprises six steel panels, the six steel panels are distributed in a rectangular array of two rows and three columns, shear nails, transverse steel bars and longitudinal steel bars are arranged on the six steel panels, the transverse steel bars and the longitudinal steel bars are mutually staggered to form a grid structure layer, the main bridge deck is paved with a main bridge deck ultra-high performance concrete pavement layer, and the main bridge deck ultra-high performance concrete pavement layer is paved with a main bridge deck abrasion layer; The bridge approach surface comprises a first bridge approach surface and a second bridge approach surface, wherein concrete anti-collision walls are arranged on two sides of the bridge approach surface, shear nails, transverse steel bars and longitudinal steel bars are respectively arranged on the first bridge approach surface and the second bridge approach surface, the transverse steel bars and the longitudinal steel bars are mutually staggered to form a grid structure layer, a first bridge approach surface ultra-high performance concrete pavement layer is paved on the first bridge approach surface ultra-high performance concrete pavement layer, a first bridge approach abrasion layer is paved on the first bridge approach surface ultra-high performance concrete pavement layer, a second bridge approach surface ultra-high performance concrete pavement layer is paved on the second bridge approach surface ultra-high performance concrete pavement layer, The method comprises the steps of arranging reinforcing steel bars at joints of two adjacent steel panels, arranging the reinforcing steel bars at the joints of the two steel panels which are adjacent transversely in parallel to the transverse steel bars and staggered with the transverse steel bars, arranging the reinforcing steel bars at the joints of the two steel panels which are adjacent longitudinally in parallel to the longitudinal steel bars and staggered with the longitudinal steel bars, arranging a tooth mouth type end die at the joints of the reinforcing steel bars, and arranging positioning bayonets matched with the diameters of the transverse steel bars, the longitudinal steel bars and the reinforcing steel bars on the tooth mouth type end die, so that the tooth mouth type end die is sleeved on the transverse steel bars, the longitudinal steel bars and the reinforcing steel bars through the positioning bayonets, wherein the tooth mouth type end die comprises a plurality of convex and concave shapes, the convex shapes and the concave shapes are alternately arranged along the direction of the transverse steel bars to form a square wave structure, and the transverse lengths and the longitudinal lengths of the convex shapes and the concave shapes are identical.
10. The steel bridge deck pavement system of claim 9, wherein when the spacing between the reinforcing bars is 100mm, the reinforcing bars are disposed in both the convex and concave shapes, and when the spacing between the reinforcing bars is 350mm, the reinforcing bars are disposed only in the convex or concave shapes, and wherein when the reinforcing bars are disposed only in the convex shapes, the convex lateral directions are provided with positioning bayonets adapted to the diameters of the longitudinal bars and the reinforcing bars, the concave lateral directions are provided with positioning bayonets adapted to the diameters of the longitudinal bars, and when the reinforcing bars are disposed only in the concave shapes, the convex lateral directions are provided with positioning bayonets adapted to the diameters of the longitudinal bars and the reinforcing bars.

Description

Steel bridge deck pavement system and construction method thereof Technical Field The invention relates to the technical field of bridge construction engineering, in particular to a steel bridge deck pavement system and a construction method thereof. Background Along with the rapid development of traffic industry in China, bridge construction also plays a wave in China. As the number of bridges with large span increases, steel bridges are widely used. The steel bridge deck system has many advantages, such as light dead weight, and can be prefabricated and then hoisted on site, thereby reducing engineering period and the like. In the steel bridge deck system, however, the problem of high construction difficulty in the pouring process of the concrete pavement layer exists, the existing construction method is complex in operation and unchanged in control, so that the overall construction progress and quality of engineering can be affected, in addition, the concrete pavement layer is particularly important in the pouring process, compared with common concrete, the ultra-high performance concrete adopted in the combined bridge deck structure has better compression resistance and tensile resistance, however, the joint of the steel bridge deck structure bears repeated vehicle load, the durability and fatigue resistance of the bridge deck structure are difficult to ensure only by means of the ultra-high performance concrete, the problem of cracking of the combined bridge deck structure of the steel bridge can be caused, and huge economic cost is brought to maintenance and repair work of the bridge deck structure. In addition, the concrete pavement layer which is usually arranged on the steel bridge deck cannot be too thick, so that the constant weight of the bridge is not excessively increased, and the bearing capacity of the bridge is not affected. Therefore, how to accelerate the construction progress and quality, it is important to strengthen the structural stress frame of the steel bridge deck pavement and ensure the thickness of the concrete pavement layer, and it is an important subject for those skilled in the art. Disclosure of Invention In order to solve the problems, the invention provides a steel bridge deck pavement system and a construction method thereof, which are used for reasonably processing a steel bridge deck, meeting the requirements of construction period, improving the compression resistance, the shear strength and the fatigue resistance of an ultra-high performance concrete pavement layer of a steel bridge deck, and ensuring that the ultra-high performance concrete pavement layer does not flow in the pouring process so as to ensure the thickness of the ultra-high performance concrete pavement layer. The invention provides a construction method of a steel bridge deck pavement system, which is characterized by comprising the following steps of: S1, dividing the steel bridge deck pavement system into a main bridge deck and an approach bridge deck; S2, dividing the main bridge deck into six steel panels, wherein the six steel panels are distributed in a rectangular array of two rows and three columns, and the six steel panels are sequentially subjected to the following construction procedures according to the sequence of the middle and the two sides, wherein (1) the surfaces of the steel panels are subjected to sand blasting rust removal treatment and shear nails are welded; s3, paving a main bridge deck wearing layer on the main bridge deck ultra-high performance concrete paving layer; S4, dividing the bridge approach surface into a first bridge approach surface and a second bridge approach surface, and respectively carrying out the following construction procedures on the first bridge approach surface and the second bridge approach surface in sequence, wherein (1) concrete anti-collision wall pouring construction is carried out on the two sides of the bridge approach surface, (2) sand blasting rust removal treatment is carried out on the surface of the bridge approach surface and shear nails are welded, (3) transverse steel bars and longitudinal steel bars are paved on the bridge approach surface to form grid structure layers which are staggered with each other, and (4) ultra-high performance concrete pouring and curing are carried out on the bridge approach surface with the grid structure layers in the procedure (3) to form a first bridge approach surface ultra-high performance concrete pavement layer or a second bridge approach surface ultra-high performance concrete pavement layer; S5, paving a first bridge approach abrasion layer on the first bridge approach surface ultra-high performance concrete pavement layer; and S6, paving a second bridge approach abrasion layer on the second bridge approach surface ultra-high performance concrete pavement layer. Further, the six steel panels are a first steel panel, a second steel panel, a third steel panel, a fourth steel panel, a fifth steel panel