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Application of structure for wrapping concrete caisson with corrosion resisting metal material

A technology of corrosion-resistant metal and material structure, applied in caissons, infrastructure engineering, construction, etc., to achieve the effect of simple and feasible installation process and avoid damage

Active Publication Date: 2017-03-15
TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the structural characteristics and weight requirements of the gravity caisson, the commonly used corrosion protection measures are mainly high-performance and high-quality dense concrete, anti-corrosion paint on the surface, or epoxy-coated steel bars instead of ordinary steel bars. However, due to the limitations of the above methods It is difficult to meet the high durability requirements of reinforced concrete structures, and there is an urgent need for more advanced and long-term protection technologies to provide more effective protection for reinforced concrete structures serving as caisson structures

Method used

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  • Application of structure for wrapping concrete caisson with corrosion resisting metal material
  • Application of structure for wrapping concrete caisson with corrosion resisting metal material
  • Application of structure for wrapping concrete caisson with corrosion resisting metal material

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[0041] Taking the concrete caisson of an offshore project as the protection object, the invention adopts the invention to carry out anti-corrosion and enhanced protection for the concrete caisson's splash area and tidal range area. The 3mm thick 316L stainless steel plate is used as the corrosion-resistant metal plate covering the surface of the concrete caisson. Its size is 1220mm×2440mm, and the lower elevation of the protected area is 0.5 meters below the design low water level (the annual average tidal range is 1 meter). First use 316L threaded studs and 316L nuts with a diameter of 12mm to closely fit the stainless steel plate and the outer formwork of the concrete caisson, and then fix it relatively. Eight sets of anchor points are selected for each structural unit, which are respectively fixed along the edge of the stainless steel plate with studs and nuts, and each edge has three sets. After the fixation is completed, assemble the formwork, pour concrete, remove the nu...

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Abstract

The invention discloses a method for wrapping a concrete caisson with a corrosion resisting metal material. The method comprises the steps that an outer side template of concrete is used as a supporting structure, double-screw bolts and nuts are adopted as fixing and anchoring components, surface wrapping of the large-area plane concrete structure is achieved, and compared with other outer wrapping technologies, a molded concrete structure does not need to be punched, and damage to the concrete structure in the outer wrapping process is avoided.

Description

[0001] The application of the present invention is a divisional application of the parent application "a method for coating a concrete caisson with a corrosion-resistant metal material". The application number of the parent application is 2015107798939, and the application date is November 13, 2015. technical field [0002] The invention belongs to the protection field of concrete in the marine environment, and relates to a method for coating a concrete caisson with a corrosion-resistant metal material. Background technique [0003] In recent years, the state's support for the development of the marine economy will not only promote the strategic transfer of my country's marine technology from near and shallow seas to deep and deep seas, but will also further promote the utilization of marine resources in various fields and the development of related key technologies. In terms of developing marine and coastal engineering technology, the "National "Twelfth Five-Year" Marine Sci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D23/00
CPCE02D23/00E02D2250/0007E02D2250/0023E02D2300/002E02D2300/0026
Inventor 秦铁男唐聪马化雄陈韬张文锋
Owner TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG