Method for monitoring strength of climbing formwork device attached to concrete structure in real time

A concrete structure, concrete technology, applied in the direction of strength characteristics, using a stable tension/compression test material strength, measuring devices, etc., can solve problems such as poor prediction accuracy

Active Publication Date: 2019-10-25
SHANGHAI CONSTRUCTION GROUP
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Problems solved by technology

[0005] Aiming at the problem in the prior art that real-time evaluation of concrete strength is realized by using concrete maturity, because the influence of temperature and humidity in the curing environment is not considered, the prediction accuracy is generally poor. The present invention provides a climbing formwork equipment attached con

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  • Method for monitoring strength of climbing formwork device attached to concrete structure in real time
  • Method for monitoring strength of climbing formwork device attached to concrete structure in real time
  • Method for monitoring strength of climbing formwork device attached to concrete structure in real time

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[0034] The method for real-time monitoring of the strength of the concrete structure attached to the climbing formwork equipment provided by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer in conjunction with the following description. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0035] The maturity degree of concrete is the product of concrete curing time (h) and curing temperature (°C), which is used to calculate the early strength of concrete. The following formula for calculating the concrete maturity is: M S =∑(T i +10)·Δt i , where: Ms—concrete maturity; T i — at t i The average curing temperature of concrete during the time; t i - Main...

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Abstract

The invention provides a method for monitoring the strength of a climbing formwork device attached to a concrete structure in real time. Modified maturity of the concrete is obtained by monitoring thetemperature of a concrete test block, the environment maintenance temperature and the environment maintenance humidity and the like and by measuring and determining the volume ratio; the compressivestrength of the concrete test block is determined by an experiment, and according to the modified maturity corresponding to the compressive strength, several groups of associated data are establishedbetween the concrete strength and the modified maturity to further fit a relation function of the concrete strength and the modified maturity; subsequently, data including the temperature of the concrete of a super high layer core tube, the concrete temperature, the humidity and so on are monitored, the strength of the super high layer core tube is calculated, and whether the strength satisfies the climbing strength of the climbing formwork device or not is judged so as to provide a reliable basis for climbing of the climbing formwork device of the super high layer core tube. The method considers factors including the environment maintenance temperature, the maintenance humidity and the size effect and so on, thus the method is highly reliable and is able to realize real-time monitoring and evaluation for concrete strength.

Description

technical field [0001] The invention relates to a method for real-time monitoring of the strength of a concrete structure attached to climbing formwork equipment, and belongs to the technical field of building construction. Background technique [0002] Climbing formwork equipment is an important construction equipment for the construction of super high-rise buildings. During the construction of super high-rise core tubes, the supporting structure of the climbing formwork equipment is alternately attached to the concrete structure for climbing operations. The time-varying strength detection and evaluation of the attached concrete structure is very important. Direct Affect the safety and construction period during climbing construction. If the supporting structure is attached to the concrete structure too early during the climbing process of the climbing formwork equipment, the load is directly transmitted to the attached concrete structure. Due to the low strength, it cannot...

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Application Information

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IPC IPC(8): G01N3/08G01N3/06
CPCG01N3/06G01N3/08G01N2203/0682G01N2203/0694
Inventor 龚剑左自波黄玉林潘曦占羿箭
Owner SHANGHAI CONSTRUCTION GROUP
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