EP0345620A2 - Poutre en T en béton armé - Google Patents

Poutre en T en béton armé Download PDF

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Publication number
EP0345620A2
EP0345620A2 EP89109799A EP89109799A EP0345620A2 EP 0345620 A2 EP0345620 A2 EP 0345620A2 EP 89109799 A EP89109799 A EP 89109799A EP 89109799 A EP89109799 A EP 89109799A EP 0345620 A2 EP0345620 A2 EP 0345620A2
Authority
EP
European Patent Office
Prior art keywords
reinforcement
steel sheet
web
trough
beam according
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.)
Granted
Application number
EP89109799A
Other languages
German (de)
English (en)
Other versions
EP0345620A3 (fr
EP0345620B1 (fr
Inventor
Hans-Peter Dr.-Ing. Andrä
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.)
ANDRA HANS PETER DR ING
Original Assignee
ANDRA HANS PETER DR ING
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
Priority claimed from DE8807413U external-priority patent/DE8807413U1/de
Application filed by ANDRA HANS PETER DR ING filed Critical ANDRA HANS PETER DR ING
Priority to AT89109799T priority Critical patent/ATE92139T1/de
Publication of EP0345620A2 publication Critical patent/EP0345620A2/fr
Publication of EP0345620A3 publication Critical patent/EP0345620A3/fr
Application granted granted Critical
Publication of EP0345620B1 publication Critical patent/EP0345620B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/945—Load-supporting structures specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs

Definitions

  • the invention relates to a beam made of reinforced concrete with a beam cross-section, which has a beam web below with longitudinal web reinforcement and an overlying plate with top flange reinforcement.
  • a self-supporting formwork When producing a conventional reinforced concrete beam in in-situ concrete without auxiliary supports, a self-supporting formwork must first be made, which is to be dimensioned such that it bears the concrete weight of the beam and, if applicable, the subsequent ceiling sections and the reinforcement. This formwork can only be removed when the concrete has reached sufficient strength to at least bear these loads.
  • the reinforcement in the girder web must be designed taking into account the dead weight loads and the traffic loads in such a way that harmful cracks cannot occur in the outer surface of the girder web (crack limitation).
  • Composite ribbed ceilings are known in which a trapezoidal sheet forms a permanent formwork for the undersurface of the ceiling provided with ribs.
  • the advantages of Composite ribbed ceiling that no special formwork is required during manufacture and that no cracks can occur in the outer surface of the ribbed concrete due to the flat sheet steel reinforcement on the outside, so that the measures to limit cracks are eliminated, but the main disadvantage is that in the event of a fire the fire resistance is not sufficient because the reinforcement is not covered with concrete. It must be expected that the external reinforcement will fail at temperatures above 600 ° C. It is therefore known in composite concrete rib ceilings to insert reinforcing bars in the individual, closely adjacent ribs (DE-A-1 800 858). If the function of the trapezoidal sheet as reinforcement largely fails in the event of a fire, the function of the inserted reinforcing bars is not or not significantly impaired.
  • Composite concrete rib ceilings are also known (DE-OS 23 35 281), in which a shear-resistant connection to the concrete takes place by means of composite elements on the steel sheet.
  • the object of the invention is to design a carrier of the type mentioned in the introduction in such a way that its manufacture is simplified and its wearing properties are substantially improved.
  • the beam web has an outer, trough-shaped steel sheet reinforcement covering the underside and the two side surfaces of the beam web, the upper longitudinal edges of which are provided with composite elements which engage positively between reinforcing bars of the upper chord reinforcement extending transversely to the longitudinal direction of the beam.
  • both the cross-section of the steel sheet reinforcement and the inserted reinforcing bars can be used up to the yield point.
  • the yield strength of the reinforcing bars can be set much higher than the yield strength of the steel girder.
  • the plate forms the top chord of the beam and is positively connected to the sheet steel reinforcement.
  • the connection between the beam web and the widened upper chord is made in a conventional manner by means of brackets or bent reinforcing bars in accordance with the reinforced concrete guidelines.
  • considerably less composite in the form of dowel strips or headed dowels are required than in conventional composite constructions, where the entire shear force has to be entered into the concrete slab by means of composite.
  • the girder thus formed optimally combines the structural properties of a composite steel structure with a reinforced concrete structure. This has a particularly favorable effect in the event of a fire, for example. Since the reinforcement bars inserted into the beam web are not impaired in the event of a fire and reduced safety can be expected in this case, the web reinforcement determined according to the load-bearing method is also sufficient for the fire load case.
  • the composite elements attached to the longitudinal edges of the steel sheet reinforcement extend upwards into the plate.
  • This can preferably be perforated or toothed strips made of sheet metal with recesses, through the recesses of which the reinforcing bars of the upper chord reinforcement extend.
  • the use of such perforated strips in steel-concrete composite structures is known per se (EP-A-215 148); however, the load-bearing steel parts are completely free under the concrete slab, so that only low fire resistance can be achieved. It is particularly advantageous if the trough-shaped steel sheet reinforcement is stiffened by vertical U-shaped stiffening brackets connected to the inside of the side walls and the bottom wall.
  • composite elements are attached along the inside of the steel sheet reinforcement, wherein the composite elements on the inside of the floor have at least one vertical toothed or perforated strip made of sheet metal which extends in the longitudinal direction of the beam and which is welded to the bottom of the sheet steel reinforcement and are in engagement with transverse, lower legs of the stirrups of the web reinforcement.
  • part of the reinforcement is arranged in the form of flat sheets in the beam according to the invention, which trough-like the lower surface and the two side surfaces of the web concrete cover from the outside.
  • the lateral sheet metal surfaces can be provided on their upper edges with narrow horizontal flanges facing outwards and are connected in a shear-resistant manner to the web concrete or slab concrete by means of special composite elements.
  • the composite elements consist of vertical perforated or toothed strips that are welded to the horizontal sheet metal surfaces of the trough (flanges and bottom of the trough) by longitudinal fillet welds. They reach into the web concrete or slab concrete and cross at the bottom with the stirrup reinforcement of the bar or at the top with the lower cross reinforcement in the slab.
  • the slab beam After laying the slab formwork or the precast slabs and the usual reinforcement of the slab and the beam webs, the slab beam can be concreted in one go without further supports. After the concrete has hardened, the trough cross-section, together with the longitudinal round steel reinforcement of the beam web, acts as a tension member of the reinforced concrete beam.
  • the proportion of the external longitudinal reinforcement (trough cross-section) depends on the underlying free span of the trough girder and the load during construction. The proportion of external reinforcement is generally much less than the round steel reinforcement in the web; it therefore only forms a relatively thin skin on the outside surfaces of the bridge.
  • massive prefabricated panels can be placed on the horizontal flanges of the self-supporting trough girders, which span the distance between two adjacent trough girders and only integrate into the in-situ concrete part of the slab beam in the area of their support.
  • the reinforced concrete beam 1 shown in FIGS. 1, 2 and 3 is connected at both ends to supports 2. It has a beam web 3 at the bottom and a widened upper flange 4 above it, which in the exemplary embodiment shown continues on both sides in a ceiling plate 5.
  • Longitudinal reinforcing bars 6 forming the lower chord are inserted into the reinforced concrete beam 1, which are bent up in accordance with the transverse force profile in the reinforced concrete beam 1 and anchored in the upper chord 4, as can be seen in particular in FIG. 1.
  • An upper chord reinforcement 8 which consists of longitudinal reinforcing bars 9 and transverse reinforcing stirrups 10, is arranged in the upper chord 4.
  • the reinforcement stirrups 7 extend into the upper chord reinforcement 8.
  • the reinforcement stirrups 7 are closed at the top and embrace the bent reinforcement bars 6.
  • the beam web 3 is enclosed on its underside and its two side surfaces by a trough-shaped steel sheet reinforcement 11, each of which has an outwardly directed horizontal flange 13 on its upper longitudinal edges 12, which lies against the underside of the ceiling plate 5 and possibly with an inward directed flange 14 engages in the web concrete and has an upwardly directed perforated or toothed strip 15.
  • These flanges 13 and 14 as well as the perforated or toothed strips 15 form on the one hand a reinforcement of the longitudinal edges 12 of the reinforcement 11 consisting of relatively thin steel sheet.
  • the perforated or toothed strips engage upwards in the upper chord 4 and are in positive engagement with them the respective lower legs 16 of the web bracket 10 of the upper chord reinforcement 8. This creates a shear-resistant connection between the upper chord reinforcement 8 and the steel sheet reinforcement 11.
  • the trough-shaped steel sheet reinforcement 11 is stiffened by a plurality of vertical U-shaped stiffening brackets 17 which are arranged at a distance from one another in the longitudinal direction of the beam and which are connected to the inside of the side walls and the bottom wall of the steel sheet reinforcement.
  • the ends of these U-shaped stiffening brackets 17 made of round bars or flat steel 17a, which lies in a plane transverse to the longitudinal direction of the beam, can be connected, for example, to the inwardly directed flanges 14, preferably welded.
  • the stiffening brackets 17 are connected to the steel sheet reinforcement 11 at least with a plurality of tack welds.
  • Toothed or perforated strip 15a made of sheet metal must be welded, through the holes or teeth of which the transverse lower legs of the reinforcement stirrups 7 of the web reinforcement extend, so that a positive, shear-resistant bond between the steel sheet reinforcement 11 and the internal web reinforcement is produced.
  • the perforated or toothed strip 15a can each be interrupted in the area of a stiffening bracket 17.
  • spacers 18 can be provided in order to keep the reinforcement cage consisting of the bars 6 and the reinforcement brackets 7 in its predetermined position at a distance from the steel sheet reinforcement 11 during the manufacture of the reinforced concrete beam 1.
  • the trough-shaped steel sheet reinforcement 11 is stiffened horizontally by transverse bars or transverse disks 19a running transversely to the longitudinal direction of the beam.
  • the upper chord 4 is widened relative to the beam web 3 and merges into the adjoining ceiling plate 5, on the underside of which also here - as in the example according to FIGS. 1 and 2 - the outward flanges 13 of the steel sheet reinforcement 11 rest.
EP89109799A 1988-06-07 1989-05-31 Poutre en T en béton armé Expired - Lifetime EP0345620B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89109799T ATE92139T1 (de) 1988-06-07 1989-05-31 Traeger aus stahlbeton mit plattenbalkenquerschnitt.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8807413U DE8807413U1 (fr) 1988-06-07 1988-06-07
DE8807413U 1988-06-07
DE3909849A DE3909849A1 (de) 1988-06-07 1989-03-25 Traeger aus stahlbeton mit plattenbalken-querschnitt
DE3909849 1989-03-25

Publications (3)

Publication Number Publication Date
EP0345620A2 true EP0345620A2 (fr) 1989-12-13
EP0345620A3 EP0345620A3 (fr) 1991-12-27
EP0345620B1 EP0345620B1 (fr) 1993-07-28

Family

ID=25879207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89109799A Expired - Lifetime EP0345620B1 (fr) 1988-06-07 1989-05-31 Poutre en T en béton armé

Country Status (2)

Country Link
EP (1) EP0345620B1 (fr)
DE (2) DE3909849A1 (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008018A1 (fr) * 1990-10-30 1992-05-14 Seppo Salo Structure d'ossature d'une poutre d'assemblage
EP0533647A1 (fr) * 1991-09-19 1993-03-24 METAL PROFIL BELGIUM, société anonyme Paroi mixte et tôle profilée pour une telle paroi
EP0857835A2 (fr) * 1997-02-06 1998-08-12 Peter Bertsche Dalle sur poutres, avec armatures de cisaillement et méthode de construction
EP1007799A1 (fr) * 1997-07-29 2000-06-14 Strathclyde Technologies, Inc. Panneaux de construction s'utilisant dans la construction de batiments
WO2002046548A1 (fr) * 2000-12-08 2002-06-13 Diversakore Llc Systeme d'ossature structurale composite
KR100690197B1 (ko) * 2005-02-05 2007-03-12 금부종합건설 주식회사 평판형 쉬어코넥터를 갖는 강재 영구거푸집 보 및 그를이용한 강콘크리트 합성보
KR100690198B1 (ko) * 2005-02-05 2007-03-12 금부종합건설 주식회사 유-자형 연결재를 갖는 강재 영구거푸집 보 및 그를이용한 강콘크리트 합성보
FR2925088A1 (fr) * 2007-12-18 2009-06-19 Soc Civ D Brevets Matiere Procede de realisation d'un element de construction en beton arme et element de construction ainsi realise
FR2927916A1 (fr) * 2008-02-21 2009-08-28 Jean Louis Desbordes Poutre ecologique en beton a coffrage metallique integre.
EP2166172A1 (fr) * 2008-09-23 2010-03-24 Ancotech Ag Dispositif d'armature d'une structure en béton contre le poinçonnement aux alentours de la zone d'appui d'une dalle et élément d'armature de poinçonnement relatif
CN103835435A (zh) * 2014-03-07 2014-06-04 江苏中宝钢构有限公司 一种u形钢-混凝土组合梁
CN104164922A (zh) * 2014-07-22 2014-11-26 南京长江都市建筑设计股份有限公司 一种非预应力叠合板与支座的连接结构及其连接方法
FR3013064A1 (fr) * 2013-11-12 2015-05-15 Gagnepark Structure mixte de construction
CN106013599A (zh) * 2016-07-05 2016-10-12 风范绿色建筑（常熟）有限公司 一种u型钢梁
CN106738308A (zh) * 2017-01-17 2017-05-31 中国建筑第七工程局有限公司 预制t梁钢筋胎模架系统
CN107083821A (zh) * 2017-05-27 2017-08-22 中国建筑第八工程局有限公司 大跨度劲性梁免螺杆结构及其施工方法
JP2017218859A (ja) * 2016-06-10 2017-12-14 清水建設株式会社 床構造及び床構造の施工方法
CN108755973A (zh) * 2018-07-19 2018-11-06 中建三局集团有限公司 一种悬挑梁施工缝部位h型钢预埋系统
CN108930411A (zh) * 2018-07-26 2018-12-04 中国二十冶集团有限公司 一种叠合梁上部钢筋的穿设方法
CN113356471A (zh) * 2021-06-17 2021-09-07 中国建筑第八工程局有限公司 异型上翻梁结构施工方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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CN105421664A (zh) * 2015-12-23 2016-03-23 王本淼 一种现浇空腔楼盖用带肋钢网镂

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1800858A1 (de) * 1968-10-03 1970-05-27 Siegener Ag Geisweid Eisenkons Bauplatte,insbesondere zur Herstellung von Gebaeudedecken
EP0056646A1 (fr) * 1981-01-17 1982-07-28 Karl BACHL Ziegel- und Betonwerke Elément préfabriqué en béton armé, en particulier pour dalles et poutre pour celui-ci
US4409764A (en) * 1976-08-02 1983-10-18 Ennis H. Proctor System and method for reinforced concrete construction
EP0215148A1 (fr) * 1985-09-17 1987-03-25 Wolfhart Dr.-Ing. Andrä Connecteur pour construction portante mixte acier-béton

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1800858A1 (de) * 1968-10-03 1970-05-27 Siegener Ag Geisweid Eisenkons Bauplatte,insbesondere zur Herstellung von Gebaeudedecken
US4409764A (en) * 1976-08-02 1983-10-18 Ennis H. Proctor System and method for reinforced concrete construction
EP0056646A1 (fr) * 1981-01-17 1982-07-28 Karl BACHL Ziegel- und Betonwerke Elément préfabriqué en béton armé, en particulier pour dalles et poutre pour celui-ci
EP0215148A1 (fr) * 1985-09-17 1987-03-25 Wolfhart Dr.-Ing. Andrä Connecteur pour construction portante mixte acier-béton

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008018A1 (fr) * 1990-10-30 1992-05-14 Seppo Salo Structure d'ossature d'une poutre d'assemblage
EP0533647A1 (fr) * 1991-09-19 1993-03-24 METAL PROFIL BELGIUM, société anonyme Paroi mixte et tôle profilée pour une telle paroi
BE1005389A3 (fr) * 1991-09-19 1993-07-13 Metal Profil Belgium Sa Paroi mixte et tole profilee pour une telle paroi.
EP0857835A2 (fr) * 1997-02-06 1998-08-12 Peter Bertsche Dalle sur poutres, avec armatures de cisaillement et méthode de construction
EP0857835A3 (fr) * 1997-02-06 1999-10-20 Peter Bertsche Dalle sur poutres, avec armatures de cisaillement et méthode de construction
EP1007799A1 (fr) * 1997-07-29 2000-06-14 Strathclyde Technologies, Inc. Panneaux de construction s'utilisant dans la construction de batiments
EP1007799A4 (fr) * 1997-07-29 2002-10-30 Strathclyde Technologies Inc Panneaux de construction s'utilisant dans la construction de batiments
WO2002046548A1 (fr) * 2000-12-08 2002-06-13 Diversakore Llc Systeme d'ossature structurale composite
US6543195B2 (en) 2000-12-08 2003-04-08 Diversakore Llc Composite structural framing system
KR100690197B1 (ko) * 2005-02-05 2007-03-12 금부종합건설 주식회사 평판형 쉬어코넥터를 갖는 강재 영구거푸집 보 및 그를이용한 강콘크리트 합성보
KR100690198B1 (ko) * 2005-02-05 2007-03-12 금부종합건설 주식회사 유-자형 연결재를 갖는 강재 영구거푸집 보 및 그를이용한 강콘크리트 합성보
FR2925088A1 (fr) * 2007-12-18 2009-06-19 Soc Civ D Brevets Matiere Procede de realisation d'un element de construction en beton arme et element de construction ainsi realise
FR2927916A1 (fr) * 2008-02-21 2009-08-28 Jean Louis Desbordes Poutre ecologique en beton a coffrage metallique integre.
EP2166172A1 (fr) * 2008-09-23 2010-03-24 Ancotech Ag Dispositif d'armature d'une structure en béton contre le poinçonnement aux alentours de la zone d'appui d'une dalle et élément d'armature de poinçonnement relatif
FR3013064A1 (fr) * 2013-11-12 2015-05-15 Gagnepark Structure mixte de construction
CN103835435A (zh) * 2014-03-07 2014-06-04 江苏中宝钢构有限公司 一种u形钢-混凝土组合梁
CN104164922A (zh) * 2014-07-22 2014-11-26 南京长江都市建筑设计股份有限公司 一种非预应力叠合板与支座的连接结构及其连接方法
WO2017213019A1 (fr) * 2016-06-10 2017-12-14 清水建設株式会社 Structure de plancher et procédé de construction de structure de plancher
JP2017218859A (ja) * 2016-06-10 2017-12-14 清水建設株式会社 床構造及び床構造の施工方法
CN106013599A (zh) * 2016-07-05 2016-10-12 风范绿色建筑（常熟）有限公司 一种u型钢梁
CN106738308A (zh) * 2017-01-17 2017-05-31 中国建筑第七工程局有限公司 预制t梁钢筋胎模架系统
CN107083821A (zh) * 2017-05-27 2017-08-22 中国建筑第八工程局有限公司 大跨度劲性梁免螺杆结构及其施工方法
CN108755973A (zh) * 2018-07-19 2018-11-06 中建三局集团有限公司 一种悬挑梁施工缝部位h型钢预埋系统
CN108755973B (zh) * 2018-07-19 2024-03-01 中建三局集团有限公司 一种悬挑梁施工缝部位h型钢预埋系统
CN108930411A (zh) * 2018-07-26 2018-12-04 中国二十冶集团有限公司 一种叠合梁上部钢筋的穿设方法
CN113356471A (zh) * 2021-06-17 2021-09-07 中国建筑第八工程局有限公司 异型上翻梁结构施工方法

Also Published As

Publication number Publication date
DE58905022D1 (de) 1993-09-02
EP0345620A3 (fr) 1991-12-27
EP0345620B1 (fr) 1993-07-28
DE3909849A1 (de) 1989-12-14

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