SU420742A1 - METHOD OF MANUFACTURING A PREDICTIVE STRESSED ELEMENT - Google Patents

METHOD OF MANUFACTURING A PREDICTIVE STRESSED ELEMENT

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Publication number
SU420742A1
SU420742A1 SU1719265A SU1719265A SU420742A1 SU 420742 A1 SU420742 A1 SU 420742A1 SU 1719265 A SU1719265 A SU 1719265A SU 1719265 A SU1719265 A SU 1719265A SU 420742 A1 SU420742 A1 SU 420742A1
Authority
SU
USSR - Soviet Union
Prior art keywords
manufacturing
predictive
longitudinal reinforcement
stressed element
plate
Prior art date
Application number
SU1719265A
Other languages
Russian (ru)
Inventor
Н. Л. Котл И. Я. Подольский В. И. Сомов изобретени Г. И. Бердичевский
Original Assignee
, экспериментального проектировани учебных зданий
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by , экспериментального проектировани учебных зданий filed Critical , экспериментального проектировани учебных зданий
Priority to SU1719265A priority Critical patent/SU420742A1/en
Application granted granted Critical
Publication of SU420742A1 publication Critical patent/SU420742A1/en

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Description

1one

Изобретение относитс  к строительной тех .нике и может быть использовано при производстве предварительно напр женных сталежелезобетонных конструкций дл  промышлеииых и гражданских зданий.The invention relates to construction technicians and can be used in the manufacture of prestressed concrete structures for industrial and civil buildings.

Известен способ изготовлени  предварительно напр женного элемента, имеющего верхнюю и нижнюю пластины, посредством нат жени  продольной арматуры и последующего бетонировани . При этом нижнюю пластину присоедин ют к элементу после передачи на пего усили  предварительного напр жени .A known method of manufacturing a pre-stressed element having an upper and lower plate, by means of tensioning the longitudinal reinforcement and subsequent concreting. In so doing, the bottom plate is attached to the element after transmitting the prestressing force to it.

В изготовленных известным способом конструкци х в период между обжатием бетона и присоединением нижней пластины происход т значительные потери предварительного напр жени . Отсутствие начального сцеплени  между пластиной и бетоном уменьщает жесткость соединени  и увеличивает деформативность конструкции.In constructions produced in a known manner, between the compression of the concrete and the attachment of the bottom plate, there is a significant loss of prestress. The absence of an initial bond between the plate and the concrete reduces the stiffness of the joint and increases the deformability of the structure.

Цель изобретени  - снизить потери предварительного напр жени  и уменьшить деформативность элемента.The purpose of the invention is to reduce the loss of pre-stress and reduce the deformability of the element.

Это достигаетс  тем, что одновременно с нат жением продольной арматуры осуществл ют нат жение нижней пластины.This is achieved by the fact that, simultaneously with the tension of the longitudinal reinforcement, the lower plate is tensioned.

Пластину нат гивают так, что после отпуска всего нат жени  и обжати  бетона усили The plate is pulled so that after all the tension has been released and the concrete has been compressed

22

в ней близки к нулю, и она как ненапр гаемый элемент преп тствует потер м предварительного напр жени . Способ, предусматривающий нат жение пластины, может быть использован также при изготовлении элементов, не. имеющих продольной арматуры или имеющих только нижнюю пластину. Предлагаемый спосо б по сн етс  чертежом. Пижнюю 1 и верхнюю 2 пластины с приваренными к ним анкерами 3 и продольную арматуру 4 устанавливают в опалубку. Затем осуществл ют нат жение продольной арматуры и нижней пластины, после чего производ т бетонирование. При достижении бетоном 5it is close to zero and, as an unstressive element, it prevents the loss of prestressing. The method of stretching the plate can also be used in the manufacture of elements, not. having longitudinal reinforcement or having only the bottom plate. The proposed method is illustrated in a drawing. Tansy 1 and top 2 plates with anchors 3 welded to them and longitudinal reinforcement 4 are installed in the formwork. Then, the longitudinal reinforcement and the bottom plate are tensioned, after which concreting is performed. When reaching concrete 5

необходимой прочности производ т отпуск нат жени  пластины и продольной арматуры.required strength, tempering of the plate and the longitudinal reinforcement is made.

Предмет изобретени Subject invention

Способ изготовлени  предварительно напр женного элемента, имеющего верхнюю и нижнюю стальные пластины, -посредством нат жени  продольной арматуры и последующего бетонировани , отличающийс  тем,A method of manufacturing a prestressed element having upper and lower steel plates is by tensioning the longitudinal reinforcement and subsequent concreting, characterized in that

что, с целью снижени  потерь предварительного напр жени  и уменьшени  деформативности элемента, одновременно с нат жением продольной арматуры осуществл ют нат л ение нижней пластины.that, in order to reduce the prestress losses and reduce the deformability of the element, simultaneously with the tension of the longitudinal reinforcement, the bottom plate is tensed.

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SU1719265A 1971-11-30 1971-11-30 METHOD OF MANUFACTURING A PREDICTIVE STRESSED ELEMENT SU420742A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1719265A SU420742A1 (en) 1971-11-30 1971-11-30 METHOD OF MANUFACTURING A PREDICTIVE STRESSED ELEMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1719265A SU420742A1 (en) 1971-11-30 1971-11-30 METHOD OF MANUFACTURING A PREDICTIVE STRESSED ELEMENT

Publications (1)

Publication Number Publication Date
SU420742A1 true SU420742A1 (en) 1974-03-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1719265A SU420742A1 (en) 1971-11-30 1971-11-30 METHOD OF MANUFACTURING A PREDICTIVE STRESSED ELEMENT

Country Status (1)

Country Link
SU (1) SU420742A1 (en)

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