1、BRITISH STANDARD BS EN 14653-1:2005 Manually operated hydraulic shoring systems for groundwork support Part 1: Product specifications The European Standard EN 14653-1:2005 has the status of a British Standard ICS 93.020 BS EN 14653-1:2005 This British Standard was published under the authority of th
2、e Standards Policy and Strategy Committee on 5 May 2005 BSI 5 May 2005 ISBN 0 580 45961 6 National foreword This British Standard is the official English language version of EN 14653-1:2005. The UK participation in its preparation was entrusted by Technical Committee B/514, Access and support equipm
3、ent, to Subcommittee B/514/29, Trench support systems, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in t
4、his document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a c
5、ontract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposal
6、s for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 58, an inside back cover and a back cover. The BSI cop
7、yright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN146531 April2005 ICS93.020 Englishversion Manuallyoperatedhydraulicshoringsystemsforgroundwork supportPart1
8、:Productspecifications ComposantsdesblindagesdetranchesPartie1: Spcificationsduproduit ManuellgesteuertehydraulischeGrabenverbaugerteTeil 1:Produktfestlegungen ThisEuropeanStandardwasapprovedbyCENon28February2005. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatethecondit
9、ionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Av
10、ersioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hunga
11、ry,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2005C
12、EN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN146531:2005:EEN 14653-1:2005 (E) 2 Contents Page Foreword. 3 Introduction 4 1 Scope 5 2 Normative references . 5 3 Terms and definitions. 6 4 Symbols . 22 5 General requirements. 23 6 Materials. 23 7 Re
13、quirements 25 8 Special requirements for hydraulic components 35 9 Assessment . 39 10 Instruction manual 39 11 Marking 42 12 Conformity . 42 Annex A (normative) Partial safety factors 45 Annex B (informative) Relating site conditions to Characteristic Resistances . 46 Annex C (normative) Examples of
14、 a hydraulic leg curve and waler frame strut repositioning . 47 Annex D (normative) Ram acceptance test 52 Annex E (normative) Designation checklist. 54 Bibliography . 58 EN 14653-1:2005 (E) 3 Foreword This document (EN 14653-1:2005) has been prepared by Technical Committee CEN/TC 53 “Temporary work
15、s equipment”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2005, and conflicting national standards shall be withdrawn at the latest by October
16、2005. This European Standard with the general title Manually operated hydraulically shoring systems for groundwork support consists of the following parts: Part 1: Product specifications Part 2: Assessment by calculation or test These standards are to be read in conjunction with EN 12811-2 and EN 12
17、811-3. This document includes a Bibliography. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece
18、, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14653-1:2005 (E) 4 Introduction Hydraulically operated shoring systems comprise prefabricated equipment that supports
19、 sheeting to the sides of excavations. This document covers two types of equipment whose adjustment in length is by hydraulic or by a combination of hydraulic and mechanical means: a) hydraulic bracing frames; b) hydraulic waler frames. A variety of components which when assembled form a full system
20、. The prefabricated components are used to make frame assemblies of different dimensions and structural capacities. Hydraulic bracing frames and waler frames have two strength classification classes - Class A and Class B. Class B hydraulic bracing frame legs have a further restriction limiting the l
21、ength of a single leg to 20 m. The instruction manual is intended to provide all the necessary information on the safe use of the systems. This document gives specific requirements on the main characteristics of manually operated hydraulic pumps, hoses and associated equipment, but does not provide
22、requirements for their specification or assessment in EN 14653-2. This equipment is frequently used in conjunction with supplementary equipment, e.g. knee braces and intermediate hydraulic bracing struts. The characteristic resistance values specified in this document form various reference levels.
23、Annex A gives information about the values of Partial safety factor for materials M and Partial safety factor for actions F . Annex B gives information on their use under site conditions. EN 14653-1:2005 (E) 5 1 Scope This document specifies constructional and structural requirements for manually op
24、erated hydraulic shoring systems made from steel and aluminium for groundwork support. It specifies characteristic resistances for the equipment. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition c
25、ited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 853, Rubber hoses and hose assemblies Wire braid reinforced hydraulic type Specification EN 856, Rubber hoses and hose assemblies Rubber-covered spiral wire reinforced hydraulic
26、 type Specification EN 857, Rubber hoses and hose assemblies Wire braid reinforced compact type for hydraulic applications Specification EN 1127-1, Explosive atmospheres Explosion prevention and protection Part 1: Basic concepts and methodology EN 10002-1, Metallic materials Tensile testing Part 1:
27、Method of test at ambient temperature EN 10216 (all parts), Seamless steel tubes for pressure purposes Technical delivery conditions EN 10217 (all parts), Welded steel tubes for pressure purposes Technical delivery conditions EN 10305 (all parts), Steel tubes for precision applications Technical del
28、ivery conditions EN 12811-2, Temporary works equipment Part 2: Information on materials EN 14653-2, Manually operated hydraulically shoring systems for groundwork support Part 2: Assessment by calculation or test ENV 1993-1-1, Eurocode 3: Design of steel structures Part 1-1: General rules and rules
29、for buildings ENV 1999-1-1, Eurocode 9: Design of aluminium structures Part 1-1: General rules General rules and rules for buildings EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs (ISO 898-1:1999) EN ISO 4287, Geometric product s
30、pecifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters (ISO 4287:1997) ISO 10100, Hydraulic fluid power Cylinders Acceptance tests EN 14653-1:2005 (E) 6 3 Terms and definitions For the purposes of this document, the following terms and definitions apply
31、. 3.1 rams 3.1.1 hydraulic ram adjustable component that withstands force and whose length can be varied by the application of hydraulic pressure (see Figure 1, Figure 2 and Figure 3) NOTE 1 A separate manually operated pump activates the ram. NOTE 2 The term ram has been adopted to distinguish the
32、component from the more general term cylinder. Rams only receive static loading from ground pressure and do not require specific duty cycles or cycle rates. 3.1.2 single acting ram (SA) hydraulic ram that under hydraulic pressure only extends and cannot retract hydraulically NOTE 1 A single acting r
33、am can only support compressive forces. NOTE 2 There are three types of single acting ram available a, b and c (see Figures 1 and 2). a) Displacement type (D) see Figure 1 a); b) Piston type (P) see Figure 1 b); c) Multi-stage rams; these rams may be piston types, displacement types or a combination
34、 of both (M). NOTE 3 A single acting ram may be supplied with a mechanical spring return (SR), which provides a double- acting action without the requirement for a hydraulic return. The spring takes effect when the hydraulic pressure is released, (see Figure 2). EN 14653-1:2005 (E) 7 Key 1 Cylinder
35、end block 8 Gland 2 Male quick release coupler 9 Piston rod end block 3 Cylinder tube 10 Full bore side of piston 4 Bypass piston 11 O ring seal 5 Seal 12 Location of optional valves 6 Piston rod 13 Waler rail 7 Wiper ring a) Example of a displacement type ram Key 1 Cylinder end block 8 Gland 2 Male
36、 quick release coupler 9 Piston rod end block 3 Cylinder tube 10 Full bore side of piston 4 Sealed piston 11 O ring seal 5 Seal 12 Location of optional valves 6 Piston rod 13 Waler rail 7 Wiper ring 14 Blow-off hole 15 Mounting bolt or pin b) Example of a sealed piston type ram Figure 1 Examples of
37、single acting rams EN 14653-1:2005 (E) 8 Key 1 Single acting ram 8 Return spring 2 Outer section 9 Cylinder end block 3 Inner section 10 End block pin 4 Waler rail is positioned at both ends 90 to the 11 Piston rod end block strut 5 Quick release coupler 12 Non-load bearing mounting bolt 6 Rail pin
38、13 Retaining clip 7 Alternative locking pin positions 14 Locking pin Figure 2 Example of a telescopic waler strut with spring return 3.1.3 double acting ram (DA) hydraulic ram that both extends and retracts under hydraulic pressure (see Figure 3) NOTE These rams primarily take compressive loads but
39、also have a tensile capacity. EN 14653-1:2005 (E) 9 a) Example of a double acting ram with an internal return feed pipe Key 1 Cylinder end block 2 Piston rod end block 3 Restrained collar (if fitted) 4 Cylinder tube 5 Piston rod 6 Piston 7 Gland 8 Return feed pipe 9 Piston seal 10 Return feed pipe s
40、eal 11 Isolation valve 12 Quick release coupling 13 Piston rod seal 14 Wiper ring 15 Full bore side of piston 16 External diameter of cylinder-D a 17 Piston rod diameter-D b 18 Internal diameter of cylinder D c 19 Return side of piston b) Example of a double acting ram with an external return hydrau
41、lic feel Figure 3 Examples of double acting rams EN 14653-1:2005 (E) 10 3.2 ram components (see Figures 1, 2 and 3) 3.2.1 piston (sealed or bypass) component that transmits the force created by the fluid pressure to the piston rod (see Figures 1 and 3) 3.2.2 piston rod telescoping inner load bearing
42、 component that is terminated with a piston (sealed or bypass type) at one end and an end block at the other end 3.2.3 cylinder tube outer cylinder of the ram that resists the internal pressure 3.2.4 cylinder end block component at the end of the cylinder tube that provides a connection for attachin
43、g hydraulic fittings and isolation valves and connection points to the surrounding structure NOTE The end block may consist of two parts with a separate block for the hydraulic fittings and valves. 3.2.5 piston rod end block component at the end of the piston rod that provides a connection point for
44、 attaching to the surrounding structure 3.2.6 gland component that centralizes the piston rod and may incorporate seals, bearing rings and wiper rings,(see Figure 4) EN 14653-1:2005 (E) 11 Key 1 Piston rod 6 Wiper ring 2 Cylinder tube 7 O ring 3 Gland 8 Gland retaining thread 4 Piston rod seal 9 O r
45、ing 5 Bearing ring Figure 4 Example of a gland 3.2.7 mounting fasteners 3.2.7.1 load bearing mounting fastener pin or bolt that transfers the full load of the ram from the piston rod end block or from the cylinder end block to the surrounding structure, (see Figure 5) NOTE The pinhole diameter norma
46、lly provides a clearance tolerance and not an interference fit for the pin. 3.2.7.2 non-load bearing mounting fastener pin or bolt that retains a ram in position only (see Figure 5) EN 14653-1:2005 (E) 12 Key 1 Outer tube of the adjustable leg 6 Mounting structure 2 Inner tube of the adjustable leg
47、7 Cylinder end block 3 Ram 8 Retaining clips 4 Load bearing mounting block pins 9 Non-load bearing mounting pin 5 Piston rod end block Figure 5 Example of mounting blocks and pins Key 1 Hydraulic bracing frame leg 4 Valve housing and hose connection 2 Corner detail with pin 5 Restraining chain 3 Han
48、dling and restraining point 6 Sheet piling Figure 6 Example of a hydraulic bracing frame EN 14653-1:2005 (E) 13 3.3 piston stroke difference between the fully retracted length of the ram and the fully extended length of the ram 3.4 hydraulic bracing frame four-sided assembly that is designed to resist the applied loading on all sides (see Figure 6) 3.5 hydraulic bracing frame leg telescopic assembly of components, whose length is adjusted by a hydraulic ram (see Figure 7) NOTE 1 Each end of the leg has a pin conn
