Temperature self-preservation system used for temperature control of concrete in mass bearing platform and using method of temperature self-preservation system

A mass concrete, self-insulation technology, applied in the processing of building materials, infrastructure engineering, construction, etc., can solve the problems of increasing construction difficulty, difficulty in realizing, delaying construction period, etc., achieving good insulation effect, convenient construction, reducing The effect of inner surface temperature difference

Pending Publication Date: 2019-04-02
HUNAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these insulation measures will increase the difficulty of construction, increase costs, and even delay the construction period.

Method used

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  • Temperature self-preservation system used for temperature control of concrete in mass bearing platform and using method of temperature self-preservation system
  • Temperature self-preservation system used for temperature control of concrete in mass bearing platform and using method of temperature self-preservation system
  • Temperature self-preservation system used for temperature control of concrete in mass bearing platform and using method of temperature self-preservation system

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Example Embodiment

[0028] The present invention will be further described below in conjunction with the drawings and embodiments.

[0029] Such as figure 1 , figure 2 As shown, a self-insulation system for temperature control of large-volume concrete caps includes 5 layers of cooling pipes and water delivery devices. The 5 layers of cooling pipes are arranged in layers from bottom to top in the cap 1, and are respectively marked as ① , ②, ③, ④, ⑤; figure 1 In the a and b are equivalent to the first and second layers of cooling pipes; the layer spacing of the 5 layers of cooling pipes is 1m, and the size of the platform 1 is 36.5m×15.9m×6.0m. Each layer of cooling pipes includes an annular pipe 3 arranged around the bearing platform 1 and a core pipe 2 arranged in the middle of the bearing platform 1. The annular pipe 3 and the core pipe 2 are connected by elbows; in the same layer of cooling pipes The ring pipe 3 and the core pipe 2 are arranged in parallel; in order to achieve uniform cooling, th...

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Abstract

The invention discloses a temperature self-preservation system used for temperature control of a concrete in mass bearing platform and a using method of the temperature self-preservation system. The temperature self-preservation system comprises multi-layer cooling tubes and a water conveying device. The multi-layer cooling tubes are arranged inside the bearing platform by layers from top to bottom, each layer of the cooling tubes comprises annular tubes arranged on the periphery of the bearing platform and core tubes arranged at the center of the bearing platform, and the water conveying device is connected with the annular tubes and the core tubes. According to the temperature self-preservation system, the cooling tubes comprise the annular tubes arranged on the periphery of the bearingplatform and the core tubes arranged at the center of the bearing platform, and "cooling inside and preserve outside" is realized through the annular tubes and the core tubes, that is to say, besidestemperature cooling from inside, the temperature can further be preserved from outside; and multi-layer layout is adopted by the cooling tubes, the multi-layer cooling tubes are arranged inside the bearing platform by layers from top to bottom, and the core tubes which are arranged between adjacent two layers of the cooling tubes are perpendicularly arranged in a staggering mode so that uniformlytemperature reducing can be realized. The invention further discloses a using method of the temperature self-preservation system used for the temperature control of the concrete in mass bearing platform.

Description

technical field [0001] The invention relates to a self-insulation system for temperature control of a large-volume concrete bearing platform and an application method thereof. Background technique [0002] Water conservancy dams, high-rise buildings, large-scale equipment foundations, and long-span bridge caps are all large-volume concrete structures, and their design base period is long, and their safety and durability are extremely important. During the construction of mass concrete structures, due to the large amount of hydration heat generated by the cement during the hydration process, the internal temperature of the concrete rises, and the temperature begins to drop when the temperature rise reaches its peak value. The uneven temperature field causes the concrete to produce temperature stress. When the temperature stress exceeds the ultimate tensile strength of the concrete, the structure will produce temperature-induced cracks. These cracks will have adverse effects ...

Claims

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Application Information

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IPC IPC(8): E02D15/02E04G21/02
CPCE02D15/02E04G21/02
Inventor 汪建群魏桂亮袁青肖寒李贝
Owner HUNAN UNIV OF SCI & TECH
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