SU696134A1 - Apparatus for retaining and gradually slacking the tension of reinforcement members - Google Patents

Apparatus for retaining and gradually slacking the tension of reinforcement members

Info

Publication number
SU696134A1
SU696134A1 SU752133726A SU2133726A SU696134A1 SU 696134 A1 SU696134 A1 SU 696134A1 SU 752133726 A SU752133726 A SU 752133726A SU 2133726 A SU2133726 A SU 2133726A SU 696134 A1 SU696134 A1 SU 696134A1
Authority
SU
USSR - Soviet Union
Prior art keywords
tension
slacking
retaining
gradually
reinforcement members
Prior art date
Application number
SU752133726A
Other languages
Russian (ru)
Inventor
Леонид Борисович Перлин
Борис Владимирович Пикельный
Original Assignee
Проектный Институт N 1 Госстроя Ссср
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 Проектный Институт N 1 Госстроя Ссср filed Critical Проектный Институт N 1 Госстроя Ссср
Priority to SU752133726A priority Critical patent/SU696134A1/en
Application granted granted Critical
Publication of SU696134A1 publication Critical patent/SU696134A1/en

Links

Landscapes

  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Description

Изобретение относитс  к области строительной индустрии и может быть использовано при изготовлении предвари- тельио напр женных железобетонных конструкций с нат жением арматуры на упоры и плавной передачи усили  напр гаемой арматуры на бетон издели . Известны устройства дл  плавного отпуска напр гаемой арматуры, выполненные в виде клиновых штыревых приспособ лений или контакта оборудовани  дл  элек тротермического способа отпуска армату- ры 1. , Недостатком таких устройств  вл етс  их быстрый износ и энергоемкость, Наиболее близким к изобретению техническим решением  вл етс  устройство дл  фиксации и цлавного отпуска нат жени  арматуры, содержащее упор, т гу дл  воспри ти  усилий от напр гаемой арматуры , гайку, сопр женную с посред ством самотормоз щей резьбы и расположенное между упором и г айкой средст .во дл  отпуска арматуры 2. Недостатком этого устройства  вл етс  сложность его конструкции, которое требует больших затрат труда дл  приведени  этого устройства в рабочее положение. Цель изобретени  - упрощение конструкции . Указанна  цель достигаетс  тем, что средство дл  отпуска арматуры выполнено в виде гайки, сопр женной посредством самотормоз щей резьбы, при этом между упором и гайкой установлен упорный подшипник, кроме того, гайки выполнены с резьбой разных направлений. Известно, что самотормоз щие резьбы выполн ютс  с углом подъема винтовой линии, меньшим угла трени  винта и гайки . Нейамотормоз щую гайку можно выполнить с углом подъема винтовой линии, незначительно превышающим угол трени . При этом гайка с несамотормоз щей резьбой воспринимает основную часть осевой нагрузки, а в резьбовом соединении по витс  окружное усилие, большее силыThe invention relates to the field of the construction industry and can be used in the manufacture of prestressed reinforced concrete structures with tension reinforcement on the stops and a smooth transfer of the force of the stressed reinforcement to the concrete product. Known devices for the smooth tempering of tensioned reinforcement, made in the form of wedge-pin devices or equipment contact for the electrothermal method of tempering rebar 1. The disadvantage of such devices is their rapid wear and energy consumption. The closest to the invention is the technical solution for fixing and gland tensioning of reinforcement, containing an abutment, a thrust for receiving forces from tensioned reinforcement, a nut mated with a self-braking thread and located Between the anvil and the hinge means for releasing the armature 2. A disadvantage of this device is the complexity of its design, which requires a lot of effort to bring this device into the working position. The purpose of the invention is to simplify the design. This goal is achieved by the fact that the means for releasing reinforcement is made in the form of a nut, which is conjugated by means of a self-braking thread, while a thrust bearing is installed between the stop and the nut, in addition, the nuts are threaded in different directions. It is known that self-braking threads are made with an elevation angle of the helix smaller than the friction angle of the screw and nut. A lock nut can be made with an elevation angle of the helix slightly exceeding the friction angle. At the same time, the nut with non-braking threads takes the main part of the axial load, and in the threaded joint, the circumferential force is greater than

SU752133726A 1975-05-11 1975-05-11 Apparatus for retaining and gradually slacking the tension of reinforcement members SU696134A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU752133726A SU696134A1 (en) 1975-05-11 1975-05-11 Apparatus for retaining and gradually slacking the tension of reinforcement members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU752133726A SU696134A1 (en) 1975-05-11 1975-05-11 Apparatus for retaining and gradually slacking the tension of reinforcement members

Publications (1)

Publication Number Publication Date
SU696134A1 true SU696134A1 (en) 1979-11-05

Family

ID=20619272

Family Applications (1)

Application Number Title Priority Date Filing Date
SU752133726A SU696134A1 (en) 1975-05-11 1975-05-11 Apparatus for retaining and gradually slacking the tension of reinforcement members

Country Status (1)

Country Link
SU (1) SU696134A1 (en)

Similar Documents

Publication Publication Date Title
US4081219A (en) Coupler
KR100862248B1 (en) Anchoring apparatus and prestressed structure having the same
US4192215A (en) Tensioning apparatus and method of applying tension to a tendon
US4146951A (en) Method and apparatus for tensioning concrete reinforcing tendons
KR890013297A (en) Mechanical joint method of court-reinforced round bar and concrete reinforcement round bar which can be used for the method and mechanical joint structure of concrete reinforcement round bar manufactured thereby
DE69000220D1 (en) SHUT-OFF DEVICE FOR PRELOADED LENGTH ARMING.
US3762027A (en) Method of post-tensioning prestressed concrete
US3895879A (en) Combined post tensioning anchor and cable
SU696134A1 (en) Apparatus for retaining and gradually slacking the tension of reinforcement members
ZA821583B (en) Fixing anchoring bars or the like in structures such as concrete
AU2001262519B2 (en) Aerial cable installation and aerial cable suspension device therefor
EP0033187A2 (en) Internally tensioned structural member
US3965565A (en) Method of and apparatus for tightening high-strength steel bolts
GB1136375A (en) End anchorage for prestressing steel strands for use in prestressed concrete structures
US4124321A (en) Adjustable tie rod holder
US3343808A (en) Concrete prestressing apparatus
AU2001262519A1 (en) Aerial cable installation and aerial cable suspension device therefor
US3858991A (en) Apparatus for preassembling a cable and dead anchor
KR0146033B1 (en) Method and device for mechanical tensioning of bolts, studs and the like
CA1130105A (en) Tensioning systems for cables in prestressed concrete
US2783024A (en) Bar gripping means for use in the production of prestressed concrete
GB1202706A (en) Arched building members
KR102118120B1 (en) Anchorage apparatus for retensioning and anchorage method using the same
SU1178881A2 (en) Apparatus for fixing and gradually releasing the straining of reinforcement members
GB1237149A (en) Method of fastening anchoring elements to rods or wires for use in prestressing concrete structures