SIST EN 15037-1:2008
(Main)Precast concrete products - Beam-and-block floor systems - Part 1: Beams
Precast concrete products - Beam-and-block floor systems - Part 1: Beams
This European Standard deals with the requirements, the basic performance criteria and evaluation of conformity for precast beams made of reinforced or prestressed normal weight concrete according to EN 1992-1-1:2004, with or without clay shell, used in conjunction with blocks in compliance with EN 15037-2 or EN 15037-3 or prEN 15037-4 or prEN 15037-5, with or without cast in-situ concrete for the construction of beam-and-block floor and roof systems. Examples of typology of floor and roof systems are given in Annex B.
The total depth of the beam shall be comprised between 60 mm and 300 mm and the beams shall be at centres of not more than 1,00 m.
For higher depth, the precast concrete beams shall be in compliance with EN 13225:2004.
The products covered by this standard are intended to be used as structural floor and roof systems, including parking areas for light vehicles corresponding to traffic category F of EN 1991-1-1:2002, which are not subjected to fatigue loading.
The products may be used in seismic areas provided they fulfil the requirements specific to this use.
Vorgefertigte Betonerzeugnisse - Rippen-rund Balkendecken mit Zwischenbauteilen - Teil 1: Träger
Diese Europäische Norm behandelt die Anforderungen an sowie die grundlegenden Leistungskriterien und die Konformitätsbewertung von vorgefertigten Balken aus Stahl oder Spannbeton (Normalbeton) nach EN 1992 1 1:2004 mit oder ohne Ziegelschale, die zusammen mit Zwischenbauteilen nach prEN 15037 2 oder prEN 15037-3 oder prEN 15037-4 oder prEN 15037-5 und/oder Ortbeton zur Herstellung von Balkendecken mit Zwischenbauteilen sowie von Dachsystemen verwendet werden. Anhang B enthält eine Übersicht über die verschiedenen Typen von Decken- und Dachsystemen.
Die Gesamthöhe der Balken muss stets zwischen 60 mm und 500 mm betragen, und der Mittenabstand der Balken darf nicht mehr als 1,00 m betragen.
Bei größeren Höhen müssen die vorgefertigten Betonbalken stets den Anforderungen nach EN 13225 genügen.
Die durch diese Norm abgedeckten Produkte sind sowohl für den Einsatz als tragende Decken- und Dachsysteme einschließlich Parkflächen für leichte Fahrzeuge entsprechend der Verkehrskategorie F nach EN 1991 1 1:2002, die keinen Dauerschwingbeanspruchungen ausgesetzt sind, vorgesehen.
Die Produkte dürfen auch in Erdbebengebieten eingesetzt werden, vorausgesetzt, sie erfüllen die besonderen Anforderungen an diesen Verwendungszweck.
Produits préfabriqués en béton - Systemes de planchers a poutrelles et entrevous - Partie 1: Poutrelles
La présente Norme européenne spécifie les prescriptions, les criteres de performance de base et l'évaluation de la conformité des poutrelles préfabriquées en béton armé ou précontraint de granulats courants conformément a l'EN 1992-1-1, utilisées conjointement avec des entrevous conformes au prEN 15037-2 et/ou avec du béton coulé en place (dalle rapportée) pour la construction de systemes de planchers a poutrelles et entrevous. L'Annexe A donne la typologie de différents systemes de planchers.
La hauteur de la poutrelle ne doit pas dépasser 300 mm et l'entraxe des poutrelles ne doit pas dépasser 1,00 m.
Il convient qu'elles soient disposées en groupes pour renforcer le plancher.
Les poutrelles doivent etre fabriquées en usine par moulage, par filage ou par extrusion.
Les produits visés par la présente norme sont destinés a etre utilisés comme systemes de planchers structurels non soumis a une charge de fatigue, ainsi que dans des zones de circulation ou de stationnement pour des véhicules légers correspondant a la catégorie de trafic F de l'EN 1991-1-1.
Les produits peuvent etre utilisés dans des zones sismiques a condition qu'ils répondent aux prescriptions spécifiques a cette utilisation.
Montažni betonski izdelki - Stropni sistemi iz nosilcev in polnil - 1. del: Nosilci
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Montažni betonski izdelki - Stropni sistemi iz nosilcev in polnil - 1. del: NosilciVorgefertigte Betonerzeugnisse - Rippen-rund Balkendecken mit Zwischenbauteilen - Teil 1: TrägerProduits préfabriqués en béton - Systemes de planchers a poutrelles et entrevous - Partie 1: PoutrellesPrecast concrete products - Beam-and-block floor systems - Part 1: Beams91.100.30Beton in betonski izdelkiConcrete and concrete products91.060.30Stropi. Tla. StopniceCeilings. Floors. StairsICS:Ta slovenski standard je istoveten z:EN 15037-1:2008SIST EN 15037-1:2008en01-junij-2008SIST EN 15037-1:2008SLOVENSKI
STANDARD
SIST EN 15037-1:2008
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15037-1April 2008ICS 91.100.30 English VersionPrecast concrete products - Beam-and-block floor systems -Part 1: BeamsProduits préfabriqués en béton - Systèmes de planchers àpoutrelles et entrevous - Partie 1: PoutrellesBetonfertigteile - Balkendecken mit Zwischenbauteilen -Teil 1: BalkenThis European Standard was approved by CEN on 30 June 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15037-1:2008: ESIST EN 15037-1:2008
EN 15037-1:2008 (E) 2 Contents Page The numbering of clauses is strictly related to EN 13369: Common rules for precast concrete products, at least for the first three digits. When a clause of EN 13369 is not relevant or included in a more general reference of this standard, its number is omitted and this may result in a gap on numbering. Foreword.4 Introduction.6 1 Scope.7 2 Normative references.7 3 Terms and definitions.7 4 Requirements.10 4.1 Material requirements.10 4.2 Production requirements.11 4.3 Finished product requirements.16 5 Test methods.24 5.1 Tests on concrete.24 5.2 Measuring of dimensions and surface characteristics.24 5.3 Weight of the products.25 5.4 Prestressing.25 6 Evaluation of conformity.26 6.1 General.26 6.2 Type testing.26 6.3 Factory production control.26 7 Marking.26 8 Technical documentation.26 Annex A (normative)
Inspection schemes for beams.28 A.1 General.28 A.2 Process inspection.28 A.3 Finished product inspection.28 Annex B (informative)
Typology of beam-and-block floor systems.30 B.1 General.30 B.2 Floor systems with cast in-situ structural topping.30 B.3 Floor systems with composite topping.31 B.4 Floor systems with partial topping.32 B.5 Floors with self-bearing beams.33 Annex C (informative)
Monolithism of composite floor systems.34 C.1 General.34 C.2 Strength of connecting reinforcement.36 C.3 Anchorage of connecting reinforcement.36 Annex D (informative)
Detailing of supports and anchorage of reinforcement.39 D.1 General.39 D.2 Construction of supports.39 D.3 Anchorage of reinforcements.47 Annex E (informative)
Design of composite floor systems.49 E.1 General.49 E.2 Resisting section of the finished floor system.49 SIST EN 15037-1:2008
EN 15037-1:2008 (E) 3 E.3 Design value of the ULS mid-span bending moment (MRd).53 E.4 Serviceability limit states.54 E.5 Verification of the shear strength in composite systems.58 Annex F (informative)
Design of self-bearing beams.65 F.1 General.65 F.2 Design value of the ultimate limit state bending moment.65 F.3 Serviceability limit state of prestressed beams.65 F.4 Design value of the resisting shear force.65 Annex G (informative)
Diaphragm action.66 G.1 General.66 G.2 Case of low rise building.67 Annex H (normative)
Testing to determine erection spans.68 H.1 General.68 H.2 Determination of erection span.68 H.3 Apparatus.69 H.4 Test arrangement.69 H.5 Loading procedure.70 H.6 Interpretation of results.71 H.7 Test report.73 Annex J (informative)
Concrete strength at time of release of tendons.74 J.1 General.74 Annex K (informative)
Resistance to fire.76 K.1 General.76 K.2 Fire resistance of beam-and-block floor systems.76 K.3 Determination by testing.76 K.4 Evaluation by calculation.76 K.5 Tabulated data.78 Annex L (informative)
Acoustic insulation.79 L.1 General.79 L.2 Airborne sound insulation.79 L.3 Impact sound insulation.79 Annex Y (informative)
Choice of CE marking method.81 Y.1 General.81 Y.2 Method 1.81 Y.3 Method 2.81 Y.4 Method 3.81 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 89/109/EEC, EU Construction Products Directive.82 ZA.1 Scope and relevant characteristics.82 ZA.2 Procedure for attestation of conformity of beams for beam-and-block floor systems.84 ZA.3 CE marking and labelling.85
SIST EN 15037-1:2008
EN 15037-1:2008 (E) 4 Foreword This document (EN 15037-1:2008) has been prepared by Technical Committee CEN/TC 229 “Precast concrete products”, the secretariat of which is held by AFNOR, and was examined by and agreed with a joint working party appointed by the Liasion Group CEN/TC 229-TC 250, particulary for its compatibility with structural Eurocodes. 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 2008, and conflicting national standards shall be withdrawn at the latest by April 2011. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. European Standard for beam-and-block floor system is made of 5 parts: EN 15037-1, Precast concrete products - Beam-and-block floor systems — Part 1: Beams prEN 15037-2, Precast concrete products - Beam-and-block floor systems — Part 2: Concrete blocks1) prEN 15037-3, Precast concrete products - Beam-and-block floor systems — Part 3: Clay blocks1) prEN 15037-4, Precast concrete products - Beam-and-block floor systems — Part 4: Polystyrene blocks1) prEN 15037-5, Precast concrete products - Beam-and-block floor systems — Part 5: Lightweight blocks 1) This standard is one of a series of product standards for precast concrete products. For common aspects reference is made to EN 13369: Common rules for precast concrete products, from which also the relevant requirements of the EN 206-1: Concrete — Part 1: Specification, performance, production and conformity are taken. The references to EN 13369 by CEN/TC 229 product standards are intended to make them homogeneous and to avoid repetitions of similar requirements. Eurocodes are taken as a common reference for design aspects. The installation of some structural precast concrete products is dealt with by ENV 13670-1: Execution of concrete structures — Part 1: Common rules, which has at the moment the status of a European Prestandard. In all countries it can be accompanied by alternatives for national application and it should not be treated as a European Standard. The program of standards for structural precast concrete products comprises the following standards, in some cases consisting of several parts: EN 1168, Precast concrete products — Hollow core slabs EN 12794, Precast concrete products — Foundation piles EN 12843, Precast concrete products — Masts and poles
1) to be developed SIST EN 15037-1:2008
EN 15037-1:2008 (E) 5 EN 13224, Precast concrete products — Ribbed floor elements EN 13225, Precast concrete products — Linear structural elements EN 13693, Precast concrete products — Special roof elements EN 13747, Precast concrete products — Floor plates for floor systems EN 13978, Precast concrete products — Precast concrete garages EN 14843, Precast concrete products — Stairs EN 14844, Precast concrete products — Box culverts EN 14991, Precast concrete products — Foundation elements EN 14992, Precast concrete products — Wall elements EN 15050, Precast concrete products — Bridge elements prEN 15258, Precast concrete products — Retaining wall elements This standard defines in Annex ZA the application methods of CE marking to products designed using the relevant EN Eurocodes (EN 1992-1-1:2004 and EN 1992-1-2:2004). Where, in default of applicability conditions of EN Eurocodes to the works of destination, design Provisions other than EN Eurocodes are used for mechanical strength and/or fire resistance, the conditions to affix CE marking to the product are described in ZA.3.4. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 15037-1:2008
EN 15037-1:2008 (E) 6 Introduction The evaluation of conformity given in this standard refers to the completed precast elements which are supplied to the market and covers all the production operations carried out in the factory. For design rules reference is made to EN 1992-1-1:2004. Additional complementary rules are provided where necessary. Recommendations for beam-and-block floor systems are presented in informative annexes about monolithism of composite floor systems (Annex C), detailing of supports and anchorage reinforcement (Annex D), design of composite floor systems (Annex E), design of self-bearing beams (Annex F), diaphragm action (Annex G), resistance to fire (Annex K) and acoustic insulation (Annex L). According to 1.2 of EN 1992-1-1:2004 the complementary rules, given in informative annexes in this standard, comply with the relevant principles given in EN 1992-1-1. Because of the fact that the experimental evidence is mainly based on elements with limited depth and width this standard is applicable to elements with these limited dimensions. This limitation is not intended to prohibit the application of elements with larger sizes, but the experience is not yet wide enough to draw up standardised design rules. In 4.2.3, 4.3.2, 4.3.3 and 4.3.4, this standard includes specific provisions resulting from the application of EN 1992-1-1:2004 and EN 1992-1-2:2004 rules made specific for the concerned product. The use of these provisions is consistent with a design of works made with EN 1992-1-1:2004 and EN 1992-1-2:2004. SIST EN 15037-1:2008
EN 15037-1:2008 (E) 7 1 Scope This European Standard deals with the requirements, the basic performance criteria and evaluation of conformity for precast beams made of reinforced or prestressed normal weight concrete according to EN 1992-1-1:2004, with or without clay shell, used in conjunction with blocks in compliance with prEN 15037-2 or prEN 15037-3 or prEN 15037-4 or prEN 15037-5, with or without cast in-situ concrete for the construction of beam-and-block floor and roof systems. Examples of typology of floor and roof systems are given in Annex B. It is essential that the total depth of the beam be comprised between 60 mm and 500 mm and the beams be at centres of not more than 1,00 m. For higher depth, it is essential that the precast concrete beams be in compliance with EN 13225. The products covered by this standard are intended to be used as structural floor and roof systems, including parking areas for light vehicles corresponding to traffic category F of EN 1991-1-1:2002, which are not subjected to fatigue loading. The products may be used in seismic areas provided they fulfil the requirements specific to this use. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1990:2002, Eurocode — Basis of structural design EN 1992-1-1:2004, Eurocode 2: Design of concrete structures — Part 1-1: General rules and rules for buildings EN 1992-1-2:2004, Eurocode 2: Design of concrete structures — Part
1-2: General rules — Structural fire design EN 10080:2005, Steel for the reinforcement of concrete — Weldable reinforcing steel — General EN 12390-4:2000, Testing hardened concrete — Part 4: Compressive strength — Specification for testing machines EN 13369:2004, Common rules for precast concrete products prEN 15037-2, Precast concrete products — Beam-and-block floor systems — Part 2: Concrete blocks prEN 15037-3, Precast concrete products — Beam-and-block floor systems — Part 3: Clay blocks 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13369:2004 and the following apply. 3.1 beam linear structural element of small cross-sectional area, made of reinforced concrete or prestressed concrete, entirely or partially precast NOTE It may include elements which may or may not contribute to its strength (e.g. clay lower toe, clay shells) as shown in Figure 1 SIST EN 15037-1:2008
EN 15037-1:2008 (E) 8
a) inverted T beams b) I beams
c) beams with lattice girder
d) beams with clay shells Figure 1 — Examples of beams 3.2 prestressed concrete beam beam prestressed by pretensioning of prestressing steel which constitute the main reinforcement of the floor system 3.3 reinforced concrete beam beam whose longitudinal reinforcement made of reinforcing steel constitutes the main reinforcement of the floor system 3.4 self-bearing beam reinforced or prestressed concrete beam which provides the final strength of the floor system independently of any other constituent part of the floor system SIST EN 15037-1:2008
EN 15037-1:2008 (E) 9 3.5 non self-bearing beam reinforced or prestressed concrete beam which provides the final strength of the floor in conjunction with cast in-situ concrete, and possibly with blocks 3.6 block elements placed between beams made of normal weight or lightweight concrete, clay, polystyrene, plastic or wood composite (see also prEN 15037-2, prEN 15037-3, prEN 15037-4 and prEN 15037-5) 3.7 connecting reinforcement reinforcement anchored on both sides of the interface between the beam and the cast in-situ concrete NOTE It may consist of the diagonals of lattice girder, individual or continuous reinforcement in the form of loops, possibly with a longitudinal bar welded at the top and/or bottom (see Figure 2)
a) lattice girder b) loop reinforcement Figure 2 — Examples of connecting reinforcement 3.8 shear reinforcement reinforcement with angle generally between 45° and 90° to the longitudinal axis of the beams NOTE It is said to be "internal" if it provides only resistance to the shear force of the beam alone. In practice it consists of lattice girders, loop reinforcement, stirrups, etc. 3.9 lattice girder two dimensional or three dimensional metallic structure comprising an upper chord, one or more lower chords and continuous or discontinuous diagonals which are welded or mechanically connected to the chords NOTE Figure 3 gives some examples of lattice girders SIST EN 15037-1:2008
EN 15037-1:2008 (E) 10
a) continuous diagonals b) discontinuous diagonals Figure 3 — Examples of lattice girders 3.10 beam-and-block floor system floor made from a combination of parallel beams with blocks placed between them, and possibly with a cast in-situ topping which may or may not act as a compression slab 3.11 compression slab compressed upper flange of a section of structural floor NOTE It could be a distribution slab connected to the ribs or a topping by considering the upper part of the rib and the top flange of the resisting blocks 3.12 distribution slab reinforced monolithic concrete slab cast in situ over the whole floor surface, in order to spread the concentrated loads over the ribs or to ensure the bending of the slab between ribs 4 Requirements 4.1 Material requirements 4.1.1 General 4.1.1 of EN 13369:2004 shall apply. 4.1.2 Constituent materials of concrete 4.1.2 of EN 13369:2004 shall apply. 4.1.3 Reinforcing steel 4.1.3.1 Bars, coils and welded mesh 4.1.3 of EN 13369:2004 shall apply. 4.1.3.2 Lattice girders Lattice girder shall comply with EN 10080. 4.1.3.3 Connecting reinforcement Connecting reinforcement, other than lattice girder, shall be ribbed, indented or smooth steel complying with their relevant standards. Where its suitability can be proven prestressing wires or strands can be used. SIST EN 15037-1:2008
EN 15037-1:2008 (E) 11 Their diameter shall be comprised from 4 mm to 8 mm inclusive. 4.1.4 Prestressing steel 4.1.4 of EN 13369:2004 shall apply. Only tendons (wires or strands) with a diameter less than 13 mm shall be used. NOTE Other prestressing steel according to national requirements may be used until European specifications are available. 4.1.5 Inserts and connectors 4.1.5 of EN 13369:2004 shall apply. 4.2 Production requirements 4.2.1 Concrete production 4.2.1 of EN 13369:2004 shall apply NOTE For reinforced concrete beams, the values given in Table 1 of EN 13369:2004 may be reduced with a minimum compressive cylinder strength of 4 MPa at the end of curing.
4.2.2 Hardened concrete 4.2.2.1 Strength classes 4.2.2.1 of EN 13369:2004 shall apply. 4.2.2.2 Compressive strength 4.2.2.2 of EN 13369:2004 shall apply. In addition, the minimum concrete compressive strength on delivery shall not be less than 20 MPa for reinforced beams and 25 MPa for prestressed beams. NOTE For prestressed concrete beams for which the minimum concrete strength required at time of release is given, it is not necessary to check the strength of the concrete on the delivery date. The concrete class shall not be less than C25/30 for reinforced beams and C30/37 for prestressed beams. 4.2.3 Structural reinforcement 4.2.3.1 Processing of reinforcing steel 4.2.3.1 of EN 13369:2004 shall apply. 4.2.3.2 Tensioning and prestressing 4.2.3.2.1 Initial tensioning stresses 4.2.3.2.1 of EN 13369:2004 shall apply. 4.2.3.2.2 Accuracy of tensioning 4.2.3.2.2 of EN 13369:2004 shall apply. SIST EN 15037-1:2008
EN 15037-1:2008 (E) 12 4.2.3.2.3 Minimum concrete strength at time of release At the time of release of prestressing, the minimum compressive strength, fcmin,p, shall be at least (5/3) σcp where σcp is the compressive stress developed in the bottom fibre of the beam under the final prestressing force, or 20 MPa, whichever is the greater. Minimum concrete strength at time of release shall be verified in accordance with 5.1. 4.2.3.2.4 Slippage of tendons Complementary to 4.2.3.2.4 of EN 13369:2004, the maximum slippage values for protruding tendons should be deduced from Table 1. If the initial prestressing force, σ0, is lower than the maximum prestressing force, σ0max, as defined in 4.2.3.2.1 of EN 13369:2004, the values of Table 1 shall be reduced by σ0 / σ0max ratio. Table 1 — Maximum slippage values for protruding tendons, ∆∆∆∆Lo, in mm Wires Strands diameter fcmin,p = 20 MPa fcmin,p = 30 MPa diameter fcmin,p = 20 MPa fcmin,p = 30 MPa ∅ 4 2,0 2,0 ∅ 5,2 2,5 2,5 ∅ 5 2,2 2,0 ∅ 6,85 2,8 2,5 ∅ 6 2,4 2,0 ∅ 9,3 3,0 2,5 ∅ 7 2,6 2,3 ∅ 12,5 3,5 3,0 NOTE “Good” bond conditions are obtained for extruded, slipformed or moulded elements. For the description of “good” and “poor” bond conditions, Figure 8.2 of EN 1992-1-1:2004 applies. Slippage of tendons shall be verified in accordance with 5.4.2. 4.2.3.2.5 Limit values for prestressing force The value of the prestressing force is limited by the following two conditions: a) Minimum prestress Under the single action of the final prestressing force, the average prestress cross section shall be no less than 2 MPa and the prestress at the bottom fibre shall be at least 4 MPa. b) Maximum prestress The maximum tensile stress in the upper fibre of the concrete as a result of the action of the prestressing force and the dead weight of the beam shall be limited. NOTE A value of 0,30 fcmin,p2/3 may be used, where fcmin,p is the strength o
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.