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SU663808A1 - Method of prestressing reinforcement of building articles - Google Patents

Method of prestressing reinforcement of building articles

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Publication number
SU663808A1
SU663808A1 SU772518518A SU2518518A SU663808A1 SU 663808 A1 SU663808 A1 SU 663808A1 SU 772518518 A SU772518518 A SU 772518518A SU 2518518 A SU2518518 A SU 2518518A SU 663808 A1 SU663808 A1 SU 663808A1
Authority
SU
USSR - Soviet Union
Prior art keywords
reinforcement
prestressing
prestressing reinforcement
building articles
molds
Prior art date
Application number
SU772518518A
Other languages
Russian (ru)
Inventor
Иван Николаевич Яковлев
Original Assignee
Yakovlev Ivan N
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 Yakovlev Ivan N filed Critical Yakovlev Ivan N
Priority to SU772518518A priority Critical patent/SU663808A1/en
Application granted granted Critical
Publication of SU663808A1 publication Critical patent/SU663808A1/en

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Description

(54)° СПОСОБ ПРЕДВАРИТЕЛЬНОГО НАПРЯЖЕНИЯ АРМАТУРЫ СТРОИТЕЛЬНЫХ ИЗДЕЛИЙ(54) ° METHOD OF PRELIMINARY VOLTAGE OF ARMATURE OF CONSTRUCTION PRODUCTS

1one

Изобретение относитс  к способам напр жени  арматуры при изготовлении предварительно напр женных железобетонных изделий.The invention relates to methods of stressing reinforcement in the manufacture of prestressed concrete products.

Известен способ предварительного напр жени  арматуры, которую заранее покрывают плавким веществом, выдерживание температуры нагрева до полимеризации расплавленного покрыти  и охлаждение арматуры с последующим обжатием бетона издели  l. There is a known method of prestressing reinforcement, which is pre-coated with a fusible substance, maintaining the heating temperature before polymerization of the molten coating, and cooling the reinforcement, followed by compressing the concrete of article l.

Дл  осуществлени  этого способа необходимо специсшьное энергетическое оборудование и ,большой расход электроэнергии дл  нагревани  арматуры .To implement this method, one needs special power equipment and a large amount of electricity to heat the reinforcement.

Известен также способ предварителного напр жени  арма:туры, включающий нагревание армагтуры электрическим током, одновременную ее подт жку с помощью силовых устройств и последующую фиксацию арматуры в удлиненном состо нии 2, Дл  осуществлени  этого способа требуетс  сложное оборудование .There is also known a method of prestressing armature: a tour, which includes heating the armagtura with an electric current, simultaneously lifting it with the help of power devices and subsequent fixation of the armature in an elongated state 2.

Наиболее близким к изобретению  вл етс  способ предварительного напр жени  арматуры строительных изделий , включающий укладку арматуры в форму, закреплени  ее в аркерах иClosest to the invention is a method of prestressing reinforcement of building products, including placing the reinforcement in a mold, fixing it in archers and

захватах, механическое нат жение арматуры и фиксацию ее в нат нутом состо нии 3 j.grips, mechanical tension of the reinforcement and its fixation in the tensioned state 3 j.

Этот способ  вл етс  монопроизводительным , так как нат жение арматуры производ т только в одной форме.This method is mono-productive, since the tension of the reinforcement is produced in only one form.

Цель изобретени  - повысить производительность процесса предварительного напр жени  арматуры. The purpose of the invention is to improve the performance of the prestressing process of the reinforcement.

00

Дл  этого в способе предварительного напр жени  арматуры строительных изделий, включгиощем укладку арматуры в форму, закрепление ее в анкерах и захватах, механическое нат жение ар5 матуры и фиксацию ее в нат нутом состо нии , нат жение арматуры производ т одновременно в двух формах,.которые устанавливают соосно и ориентируют захватами друг к другу, после че0 го захваты соедин ют между собой и между формами прикладывс1ют распирающую нагрузку.To do this, in the method of prestressing reinforcement of building products, including placing reinforcement into the form, fixing it in anchors and grippers, mechanically tensioning the armature and fixing it in a tensioned state, tensioning the reinforcement occurs simultaneously in two forms, which set coaxially and oriented with grippers to each other, after which the grippers are interconnected and a tearing load is applied between the molds.

На чертеже показана схема установки форм дл  предварительного напр жени  арматуры по данному способу.The drawing shows the installation of prestressing forms for reinforcement in this method.

Предварительное напр жение арматуры производ т следующим образом. В две формы 1 и 2 укладывают арматуру 3 и закрепл ют ее в анкерах 4 и за0 хватах 5. Формы 1 и 2 устанавливаютThe prestressing of the reinforcement is as follows. Rebar 3 is placed in two forms 1 and 2 and fixed in anchors 4 and hooks 5. Form 1 and 2 are set

соосно и ориентируют захватами 5 руг k другу, после чего захваты соедин ют между собой разъемными т гами 6 и между формами 1 и 2 прикладывают распирающую нагрузку Р, котора  может быть создана путем установки между формами домкрата или другого силового устройства.При этом под воздействием распирающей нагрузки формы 1 и 2 перемещаютс  в противоположные стороны и анкеры 4 производ т нат жеиие арматуры 3 одновременно в обоих формах. После нат жени  на требуемое удлинение арматуру 3 фиксируют в нат нутом состо нии, например, путем установки прокладок 7 в зазор между балками 8 форм 1 и 2 и захватами 5. Затем снимают распирающую нагрузку, разъедин ют т ги 6 и формы 1 и 2 перемещают на пост формовани  железобетонных изделий.coaxially and oriented with grips 5 or k to a friend, after which the grippers are interconnected by detachable rods 6 and between the molds 1 and 2, an arching load P is applied, which can be created by placing a jack or other power device between the molds. loads of molds 1 and 2 are moved in opposite directions and the anchors 4 tension the reinforcement 3 simultaneously in both molds. After tensioning on the required elongation, the reinforcement 3 is fixed in the tensioned state, for example, by installing shims 7 into the gap between the beams 8 of the forms 1 and 2 and the grips 5. Then the unloading load is removed, the rods 6 are separated and the forms 1 and 2 are moved at the post molding concrete products.

Claims (3)

1.Авторское свидетельство СССР №76815, кл. Е 04 G 21/12, 1946.1. USSR author's certificate number 76815, cl. E 04 G 21/12, 1946. 2.Авторское свидетельство СССР 20 №131488, кл. Е 04 G 21/12, 1958.2. USSR author's certificate 20 No. 131488, cl. E 04 G 21/12, 1958. 3.Авторское свидетельство СССР .№50384, кл. Е 04 G 21/12, 1935,.3. Authors certificate of the USSR. №50384, cl. E 04 G 21/12, 1935 ,.
SU772518518A 1977-08-17 1977-08-17 Method of prestressing reinforcement of building articles SU663808A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772518518A SU663808A1 (en) 1977-08-17 1977-08-17 Method of prestressing reinforcement of building articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772518518A SU663808A1 (en) 1977-08-17 1977-08-17 Method of prestressing reinforcement of building articles

Publications (1)

Publication Number Publication Date
SU663808A1 true SU663808A1 (en) 1979-05-25

Family

ID=20722543

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772518518A SU663808A1 (en) 1977-08-17 1977-08-17 Method of prestressing reinforcement of building articles

Country Status (1)

Country Link
SU (1) SU663808A1 (en)

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