CN102839823A - 一种预应力锚具 - Google Patents

一种预应力锚具 Download PDF

Info

Publication number
CN102839823A
CN102839823A CN201210354207XA CN201210354207A CN102839823A CN 102839823 A CN102839823 A CN 102839823A CN 201210354207X A CN201210354207X A CN 201210354207XA CN 201210354207 A CN201210354207 A CN 201210354207A CN 102839823 A CN102839823 A CN 102839823A
Authority
CN
China
Prior art keywords
anchorage device
film
ground tackle
prestressed
outer sleeve
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201210354207XA
Other languages
English (en)
Inventor
李春
史金彪
艾厚石
李文革
周东任
刘振
徐向坤
毛强
晁波
姜立中
武亮
董恩荣
陆通
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iron & Coal Collective Enterprises United Development Co Ltd
Original Assignee
Iron & Coal Collective Enterprises United Development Co Ltd
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 Iron & Coal Collective Enterprises United Development Co Ltd filed Critical Iron & Coal Collective Enterprises United Development Co Ltd
Priority to CN201210354207XA priority Critical patent/CN102839823A/zh
Publication of CN102839823A publication Critical patent/CN102839823A/zh
Pending legal-status Critical Current

Links

Images

Landscapes

  • Piles And Underground Anchors (AREA)

Abstract

本发明公开了一种预应力锚具，包括锚具外套和锚具内套，所述锚具外套和锚具内套之间设有用于减小所述锚具外套和锚具内套之间相对摩擦力的薄膜层。所述薄膜层为塑料膜、石蜡膜、纤维素膜或碳膜。上述结构的预应力锚具，由于在所述锚具外套和锚具内套之间设有用于减小所述锚具外套和锚具内套之间相对摩擦力的薄膜层，因此在拆卸锁紧的预应力锚具时锚具外套和锚具内套之间的相对摩擦力减小了，比较容易拆卸，不会使锚具损坏。本发明优选的薄膜层为塑料膜、石蜡膜、纤维素膜或碳膜，这些材质的薄膜层相对锚具外套和内套的相对滑动摩擦系数小，更容易退锚。

Description

一种预应力锚具
技术领域
    本发明涉及一种预应力锚具。
背景技术
    预应力锚具适用于工程建设过程中混凝土预应力张拉使用，预应力锚具锁紧使用后，要求重复使用或设施拆除时要求预应力锚具退锚。预应力锚具包括锚具外套和锚具内套，预应力锚具锁紧后由于外套和内套的相对摩擦力很大导致退锚很困难，使用退锚器械成功退锚率很低，经常使用破坏性退锚方法如火焊切割、钢锯切割、火药爆破等，退锚成本高且退锚后锚具基本损坏无法利用。
发明内容
本发明要解决的技术问题是提供一种预应力锚具锁紧后容易退锚且锚具不会被损坏的预应力描具。
为解决上述技术问题，本发明一种预应力锚具，包括锚具外套和锚具内套，所述锚具外套和锚具内套之间设有用于减小所述锚具外套和锚具内套之间相对摩擦力的薄膜层。
作为本发明的进一步改进，所述薄膜层为塑料膜、石蜡膜、纤维素膜或碳膜。
上述结构的预应力锚具，由于在所述锚具外套和锚具内套之间设有用于减小所述锚具外套和锚具内套之间相对摩擦力的薄膜层，因此在拆卸锁紧的预应力锚具时锚具外套和锚具内套之间的相对摩擦力减小了，比较容易拆卸，不会使锚具损坏。本发明优选的薄膜层为塑料膜、石蜡膜、纤维素膜或碳膜，这些材质的薄膜层相对锚具外套和内套的相对滑动摩擦系数小，更容易退锚。
附图说明
下面结合附图对本发明作进一步地详细说明。
图1是本发明一种预应力锚具外套和内套装配在一起时的主视示意图。
图2是本发明一种预应力锚具外套和内套装配在一起时的侧视局剖示意图。
具体实施方式
    参见图1、图2，本发明一种预应力锚具，包括锚具外套1和锚具内套2，锚具外套1和锚具内套2之间设有用于减小所述锚具外套1和锚具内套2之间相对摩擦力的薄膜层3。
所述薄膜层3可以为塑料膜、石蜡膜、纤维素膜或碳膜。
所述薄膜层3的厚度优选为0.02-0.1mm。

Claims (3)

1.一种预应力锚具，包括锚具外套（1）和锚具内套（2），其特征在于：所述锚具外套（1）和锚具内套（2）之间设有用于减小所述锚具外套（1）和锚具内套（2）之间相对摩擦力的薄膜层（3）。
2.按照权利要求1所述的预应力锚具，其特征在于：所述薄膜层（3）为塑料膜、石蜡膜、纤维素膜或碳膜。
3.按照权利要求1或2所述的预应力锚具，其特征在于：所述薄膜层（3）的厚度为0.02-0.1mm。
CN201210354207XA 2012-09-21 2012-09-21 一种预应力锚具 Pending CN102839823A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210354207XA CN102839823A (zh) 2012-09-21 2012-09-21 一种预应力锚具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210354207XA CN102839823A (zh) 2012-09-21 2012-09-21 一种预应力锚具

Publications (1)

Publication Number Publication Date
CN102839823A true CN102839823A (zh) 2012-12-26

Family

ID=47367522

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210354207XA Pending CN102839823A (zh) 2012-09-21 2012-09-21 一种预应力锚具

Country Status (1)

Country Link
CN (1) CN102839823A (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898450A (zh) * 2003-12-22 2007-01-17 奥地利经济服务公司 用于预紧的和/或承受负荷的拉力件的锚固装置
CN201133085Y (zh) * 2007-06-07 2008-10-15 李树林 一种提高体外预应力效应的结构
CN201273060Y (zh) * 2008-09-12 2009-07-15 关长禄 预应力球面锚具
WO2009090352A1 (fr) * 2008-01-14 2009-07-23 Recherches Et Realisations Remy Procede et dispositif de maintenance notamment de nettoyage d'un ancrage de fil ou toron pour beton precontraint et ancrage adapte
CN102587582A (zh) * 2012-03-09 2012-07-18 杭州图强工程材料有限公司 一种中空自平衡预应力钢棒及预应力张拉夹具
CN202767539U (zh) * 2012-09-21 2013-03-06 铁煤集体企业联合发展有限公司 一种预应力锚具

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898450A (zh) * 2003-12-22 2007-01-17 奥地利经济服务公司 用于预紧的和/或承受负荷的拉力件的锚固装置
CN201133085Y (zh) * 2007-06-07 2008-10-15 李树林 一种提高体外预应力效应的结构
WO2009090352A1 (fr) * 2008-01-14 2009-07-23 Recherches Et Realisations Remy Procede et dispositif de maintenance notamment de nettoyage d'un ancrage de fil ou toron pour beton precontraint et ancrage adapte
CN201273060Y (zh) * 2008-09-12 2009-07-15 关长禄 预应力球面锚具
CN102587582A (zh) * 2012-03-09 2012-07-18 杭州图强工程材料有限公司 一种中空自平衡预应力钢棒及预应力张拉夹具
CN202767539U (zh) * 2012-09-21 2013-03-06 铁煤集体企业联合发展有限公司 一种预应力锚具

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
于滨 等: "多种规格预应力筋锚具、夹具研究与试验", 《第八届后张预应力学术交流会论文》 *

Similar Documents

Publication Publication Date Title
BRPI0809966A2 (pt) sistema para uso em um poço submarino, método de intervenção em um poço submarino, metódo para realizar uma operação de intervenção submarina, e sistema para operações de instalação submarina.
MX365745B (es) Método para utilizar marcadores de liberación controlada.
ZA201006271B (en) Method and system for in situ deposition and regeneration of high efficiency target materials for long life nuclear reaction devices
WO2011021909A3 (en) Method and apparatus for providing contents via network, method and apparatus for receiving contents via network, and method and apparatus for backing up data via network, backup data providing device, and backup system
FR2966756B1 (fr) Procede d'usinage d'un carter d'un turbomoteur d'aeronef et outil de grattoir pour la mise en oeuvre du procede
WO2012010820A3 (en) Fischer-tropsch catalyst treatment
WO2014033737A3 (en) A dehydrogenation catalyst for hydrocarbons and method of preparation thereof
WO2010007305A3 (fr) Procede de construction d'une galerie souterraine ou d'un puits permettant de realiser un bouchon etanche pour un stockage de dechets dangereux et notamment radioactifs
CL2013000612A1 (es) Pila de un material que va a ser lixiviado para recuperar un metal valioso que comprende una barrera impermeable al aire y un sistema de aireacion para la pila; metodo de construccion de una pila de un material; y metodo para la lixiviacion en pila de un metal valioso.
CN202767539U (zh) 一种预应力锚具
CN102839823A (zh) 一种预应力锚具
WO2009137840A3 (en) Oil well plug and abandonment method
WO2008129419A3 (en) Method for detecting and/or isolating mycobacteria
EP2622673A4 (en) System and method for maintaining and establishing operational readiness in a fuel cell backup system of a nuclear reactor system
JP5707006B1 (ja) インサート金具
Song et al. A comparison of compression behavior of mudrock core samples from the Nankai Margin, SW Japan and the Ursa Basin, Gulf of Mexico
US8764344B2 (en) Method for laying pipes and a machine for actuating the method
EP3054065A3 (en) A system for re-use of a part of a used oil storage tank and its foundation as well as a method for facilitating such re-use; a method for cutting a steel oil storage tank bottom plate and a system for storing oil in an environmentally friendly way
CN201771057U (zh) 一种用于预应力梁与柱的铰接构造
Remington et al. Laser Shock-Induced Spalling in Tantalum
佐藤 et al. DeepSaucer: Verification Environment for Deep Neural Networks
Burant et al. Fabrication and Characterization of High Aspect Ratio Membranes and Microporous Filters made from PMMA
Wang et al. Large deformation analysis of rectangular plate anchors in normally consolidated clay
Erich et al. Design of fire resistant concrete structures, using validated Fem models
Van Nauta Lemke et al. Method and system for capturing hydrocarbons from a leaking oilwell at a predetermined seabed location

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20121226