Mass concrete hydration heat control device and application method of bridge piers in water bridges
A large-volume concrete and control device technology, which is applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as difficult control of concrete hydration heat, and achieve the effects of saving pump transportation costs, reducing requirements, and increasing cooling effects
Active Publication Date: 2022-02-22
CHONGQING JIAOTONG UNIVERSITY
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Problems solved by technology
[0003] In view of this, the object of the present invention is to provide a device for controlling the heat of hydration of large-volume concrete in bridge piers over water and a method for using it, so as to solve the technical problem that the heat of hydration of concrete is difficult to control
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[0030] A device for controlling the heat of hydration of large-volume concrete in bridge piers over water, combined with figure 1 , figure 2 , including several first cooling devices, second cooling devices and booster mechanisms. In the bridge pier, the steel cofferdam 1 and the template 2 are provided with horizontal holes 11 through which the first cooling device and the second cooling device pass, and the horizontal holes 11 are provided with sealing devices. The sealing device includes a fixing seat 6, a sealing plate 8 and a sealing groove 12 arranged on the outer wall of the steel cofferdam 1 and the formwork 2. The fixed seat 6 is fixedly arranged on the outer wall of the steel cofferdam 1 or the formwork 2, and it is located on the side of the horizontal hole 11. The fixed seat 6 is provided with a fixed groove 7, and the sealing plate 8 is slidably arranged on the fixed groove 7. The sealing plate 8 A slide bar 9 is integrally formed on the top, and the slide bar ...
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The invention relates to the field of bridge engineering, and specifically discloses a device for controlling the heat of hydration of large-volume concrete in bridge piers over water, including a plurality of first cooling devices, a second cooling device and a pressurizing mechanism; the first cooling device includes a plurality of first cooling devices pipe, the first cooling pipe runs through the steel cofferdam, formwork and steel bar structure horizontally, and the joints between the first cooling pipe and the steel cofferdam and formwork are sealed, and the first cooling pipe is arranged along the water flow direction; the The second cooling device includes several second cooling pipes, the second cooling pipes run through the steel cofferdam, formwork and steel bar structure horizontally, and the joints between the second cooling pipes and the steel cofferdam and formwork are sealed, and the second cooling pipes The pipe is perpendicular to the first cooling pipe; the booster mechanism includes a water pump, and the water pump communicates with one end of the second cooling pipe. The purpose of the invention is to solve the technical problem that the heat of hydration of concrete is difficult to control.
Description
technical field [0001] The invention relates to the field of bridge engineering, and specifically discloses a device for controlling the heat of hydration of a large-volume concrete pier in a bridge over water and a method for using it. Background technique [0002] With the development of science and technology, bridges such as long-span lines and rivers continue to appear, and the height of bridge piers continues to increase. Mass concrete has gradually become an important part of the construction of bridge piers. The construction process of bridge piers generally includes steel cofferdam, formwork, steel structure and concrete. The steel cofferdam can isolate the water in the river and prevent a large amount of water from leaking into the steel structure; the formwork is used to enclose the steel structure and pour concrete. During the construction process, when the concrete is poured, the cement hydration reaction releases a large amount of heat, that is, the heat of hyd...
Claims
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IPC IPC(8): E01D21/00C04B40/00
CPCE01D21/00C04B40/0078
Inventor 刘浪王杰杨啸天
Owner CHONGQING JIAOTONG UNIVERSITY