SU1264070A1 - Method for monitoring developing crack in concrete - Google Patents

Method for monitoring developing crack in concrete Download PDF

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Publication number
SU1264070A1
SU1264070A1 SU843701796A SU3701796A SU1264070A1 SU 1264070 A1 SU1264070 A1 SU 1264070A1 SU 843701796 A SU843701796 A SU 843701796A SU 3701796 A SU3701796 A SU 3701796A SU 1264070 A1 SU1264070 A1 SU 1264070A1
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SU
USSR - Soviet Union
Prior art keywords
crack
sensors
strain
observation
length
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SU843701796A
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Russian (ru)
Inventor
Константин Леонидович Ковлер
Original Assignee
Московский Инженерно-Строительный Институт Им.В.В.Куйбышева
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Priority to SU843701796A priority Critical patent/SU1264070A1/en
Application granted granted Critical
Publication of SU1264070A1 publication Critical patent/SU1264070A1/en

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Abstract

Изобретение относитс  к области строительства, в частности к методам контрол  качества бетонных конструкций . Цель изобретени  - повьшение точности и информативности контрол . Датчики разной базы устанавливают попарно в пунктах наблюдени  перпендикул рно развитию трещины. Соотношение баз датчиков в каждом пункте наб-людени  составл ет 0,2 - 0,8. При совпадении абсолютных деформаций датчиков разной базы в пункте наблюдени  суд т о наличии трещины в этом пункте . Длину трещины определ ют по длине участка, в котором датчики разной базы показывают одинаковую абсолютную деформацию. 1 ил.The invention relates to the field of construction, in particular to methods for controlling the quality of concrete structures. The purpose of the invention is to increase the accuracy and information content of the control. Sensors of different bases are installed in pairs at observation points perpendicular to the development of a crack. The ratio of sensor bases in each observation point is 0.2–0.8. If the absolute deformations of the sensors of different bases coincide at the observation point, a crack is detected at this point. The length of the crack is determined by the length of the section in which the sensors of different bases show the same absolute deformation. 1 il.

Description

юYu

35 435 4

Claims (1)

Формула изобретения 15The claims 15 Способ контроля за развивающейся трещиной в бетоне, включающий установку тензодатчиков в пунктах наблюдения перпендикулярно развитию трегци20 ны, регистрацию деформаций тензодатчиков и определение по ним размеров трещины, отличающийся тем, что, с целью повышения точности и информативности контроля,в каждом 25 пункте наблюдения устанавливают по два тензодатчика разной базы с соотношением баз 0,2 - 0,8, при совпадении абсолютных деформаций датчиков разной базы в пункте наблюдения су30 дят о наличии трещины в этом пункте, а длину трещины определяют по длине участка, включающего пункты наблюдения, в которых датчики разной базы показывают одинаковую абсолютную де35 формацию, а ширину трещины считают равной величине абсолютных деформаций датчиков.A method for monitoring a developing crack in concrete, including installing strain gauges at observation points perpendicular to the development of the crack, registering strain gauges and determining crack sizes from them, characterized in that, in order to increase the accuracy and information content of the control, two monitoring points are installed in each 25 observation point a strain gauge of a different base with a base ratio of 0.2 - 0.8, if the absolute deformations of the sensors of a different base coincide at the observation point, they indicate a crack at this point, and the crack length is determined They are taken along the length of the section, including observation points, in which the sensors of different bases show the same absolute strain, and the crack width is considered equal to the absolute strain of the sensors. ВНИИПИ Заказ 5554/44 Тираж 778VNIIIPI Order 5554/44 Circulation 778 Произв.-полигр. пр-тие, г. Ужгород,Custom polygr. Prospect, Uzhhorod, Подписное ул. Проектная, 4Signed Street Project, 4
SU843701796A 1984-02-15 1984-02-15 Method for monitoring developing crack in concrete SU1264070A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU843701796A SU1264070A1 (en) 1984-02-15 1984-02-15 Method for monitoring developing crack in concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU843701796A SU1264070A1 (en) 1984-02-15 1984-02-15 Method for monitoring developing crack in concrete

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SU1264070A1 true SU1264070A1 (en) 1986-10-15

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SU843701796A SU1264070A1 (en) 1984-02-15 1984-02-15 Method for monitoring developing crack in concrete

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102393449A (en) * 2011-10-27 2012-03-28 上海交通大学 Real-time monitoring method and device used for concrete structure
CN105572329A (en) * 2016-02-29 2016-05-11 大连理工大学 Concrete crack scale distance adaptive monitoring method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 182385, кл. G 01 В 7/20, 1965. Авторское свидетельство СССР № 345350, G 01 В 7/20, 1969. *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102393449A (en) * 2011-10-27 2012-03-28 上海交通大学 Real-time monitoring method and device used for concrete structure
CN102393449B (en) * 2011-10-27 2014-01-15 上海交通大学 A real-time monitoring method and device for concrete structures
CN105572329A (en) * 2016-02-29 2016-05-11 大连理工大学 Concrete crack scale distance adaptive monitoring method

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