Continuous paving construction technology of cement concrete bridge floor and steel bridge floor

A technology of cement concrete and construction technology, which is applied to the direction of on-site paved coagulation pavement, bridges, bridge parts, etc., which can solve the problem that the paving operation cannot be carried out continuously, the flatness of the road surface is affected, and the number of lift-offs of the paver screed is too high And other issues

Active Publication Date: 2015-05-20
SHENYANG CHONGZHENG ROAD & BRIDGE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This form leads to: first, the paver cannot move continuously, and the paving operation cannot be carried out continuously; second, the paver screed is lifted off too many times, and the amount of manual paving increases; Before that, the electronic sensor would be turned off first, resulting in the inaccurate control of the road surface elevation at the joint; Fourth, after the paver

Method used

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  • Continuous paving construction technology of cement concrete bridge floor and steel bridge floor
  • Continuous paving construction technology of cement concrete bridge floor and steel bridge floor
  • Continuous paving construction technology of cement concrete bridge floor and steel bridge floor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0121] Example one

[0122] The bridge is constructed by continuous paving of cement concrete bridge deck and steel bridge deck. The bridge is 485m long and 25m wide. The two ends are cement concrete bridges and the middle three spans are rigid box beams. The cement concrete bridge deck adopts the traditional asphalt concrete surface layer; the steel bridge deck adopts the asphalt mastic gravel mixture surface layer; because the two kinds of bridge decks use different asphalt mixtures, the cement concrete deck and steel Construction technology of continuous paving of bridge deck.

[0123] figure 1 1 represents traditional asphalt concrete for cement concrete bridge deck; 2 represents expansion joint; 3 represents asphalt mastic gravel mixture for steel bridge deck.

[0124] 1. Preparation before construction

[0125] (1) Bridge deck preparation and sticky layer oil construction

[0126] Before paving the asphalt mixture, clean the bridge deck without any loose stones, dust and impurit...

Example Embodiment

[0178] Example two

[0179] The bridge is constructed by continuous paving of cement concrete bridge deck and steel bridge deck. The bridge is 485m long and 25m wide. The two ends are cement concrete bridges and the middle three spans are rigid box beams. The cement concrete bridge deck adopts the traditional asphalt concrete surface layer; the steel bridge deck adopts the asphalt mastic gravel mixture surface layer; because the two kinds of bridge decks use different asphalt mixtures, the cement concrete deck and steel Construction technology of continuous paving of bridge deck.

[0180] Calculated according to the design drawings: the total length of the cement concrete bridge deck is 194m; the width is 25m; the paving thickness of the cement concrete bridge deck is 10cm; the traditional asphalt mixture is 485m 3 ; Steel bridge deck is 291m in total length; 25m wide; steel bridge deck paving thickness is 7cm; asphalt mastic gravel mixture is required 509.25m 3 ;

[0181] 1. Prepar...

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Abstract

The invention relates to a continuous paving construction technology of a cement concrete bridge floor and a steel bridge floor, which is applied to the technical field of constructional engineering. The continuous paving construction technology of the cement concrete bridge floor and the steel bridge floor concretely comprises the following specific steps: carrying out preparatory work before construction, namely, preparing the bridge floors and carrying out bonding oil construction, wherein the bridge floors are cleaned until no loose stone, dust and impurities exist before asphalt mixtures are paved, and an asphalt disperser is used for spraying the bonding oil, so that the paving operation can be implemented continuously; carrying out construction layout and height resurvey, namely, carrying out comprehensive resurvey on the indexes such as lengths, widths, heights, cross slopes and flatness of the bridge floors by survey crew at the early period; detecting the flatness of the bridge floors by a vehicle laser pavement roughness detector, and recording the results; staking out in survey. According to the technology, the whole paving process is continuous, and the demands on paving works of different types of asphalt mixtures of the cement concrete bridge floor and the steel bridge floor can be met at the same time; after the technology is adopted, the problem of uneven pavement caused by the sectional operation in the paving process can be avoided, and the engineering cost is lowered.

Description

technical field [0001] The invention relates to a continuous paving construction technology for a cement concrete bridge deck and a steel bridge deck in the technical field of construction engineering. Background technique [0002] At present, with the rapid development of my country's economy, the construction of highways and bridges in my country has also developed rapidly, and there are various types of bridges. my country's bridges are mainly cement concrete bridges, steel bridges, cement concrete bridges and steel bridge composite bridges. In our country, the paving technology of bridge deck asphalt concrete surface has been mature. However, when the composite bridge of cement concrete bridge and steel bridge is encountered in surface course construction, because the cement concrete bridge and steel bridge use different asphalt mixtures, the paving of the bridge deck cannot be continuous but still be carried out in sections. That is, after the paving operation of one ...

Claims

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Application Information

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IPC IPC(8): E01C7/18E01D19/12
CPCE01D19/083E01D21/00Y02A30/60
Inventor 刘晏廷赵宏志
Owner SHENYANG CHONGZHENG ROAD & BRIDGE ENG CO LTD
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