WO2015135442A1 - 一种预制钢筋混凝土构件 - Google Patents

一种预制钢筋混凝土构件 Download PDF

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Publication number
WO2015135442A1
WO2015135442A1 PCT/CN2015/073763 CN2015073763W WO2015135442A1 WO 2015135442 A1 WO2015135442 A1 WO 2015135442A1 CN 2015073763 W CN2015073763 W CN 2015073763W WO 2015135442 A1 WO2015135442 A1 WO 2015135442A1
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reinforced concrete
sides
longitudinal groove
concrete member
steel
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English (en)
French (fr)
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初明进
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    • 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
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E04B1/043—Connections specially adapted therefor
    • E04B1/046—Connections specially adapted therefor using reinforcement loops protruding from the elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8611—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf
    • E04B2/8617—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf with spacers being embedded in both form leaves
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8623—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers and at least one form leaf being monolithic
    • E04B2/8629—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers and at least one form leaf being monolithic with both form leaves and spacers being monolithic

Definitions

  • the invention belongs to the technical field of prefabricated reinforced concrete structural members, and in particular relates to a prefabricated reinforced concrete member suitable for assembling a monolithic structure.
  • prefabricated concrete structures should be vigorously developed.
  • the main structural components of the precast concrete structure are produced in the factory, with high production efficiency, good quality, saving resources and energy, and contributing to sustainable development.
  • the use of precast concrete structure is the direction of the development of industrialization of buildings, and also the direction of the development of residential industrialization.
  • the invention provides a prefabricated reinforced concrete member, which can facilitate the installation of the prefabricated reinforced concrete members and the connection of the steel bars, improve the stress performance of the joints, and improve the industrialization level of the building structure.
  • the present invention provides a prefabricated reinforced concrete member having a longitudinal groove on a side surface thereof, and a concrete thin plate on both sides of the longitudinal groove; a lateral groove is formed on a side of the thin plate on both sides of the longitudinal groove
  • the two sides of the lateral groove are connected with steel bars, and the steel bars are fully anchored in the precast reinforced concrete members; the steel bars are reinforced with steel bars or steel rings; the steel rings are closed stirrups or welded steel rings. Since the steel bars between the precast reinforced concrete members can be anchored in the lateral grooves or the longitudinal grooves, the distance between the precast concrete members can be reduced and the amount of the formwork can be reduced.
  • the steel ring is hung on the prefabricated reinforced concrete members for easy transportation and installation, and is convenient for connection with other members.
  • One or more columns of steel bars are connected between the thin plates on both sides of the longitudinal groove of the prefabricated reinforced concrete member; or one or more steel bars are connected between the thin plates on both sides of the longitudinal groove; or between the thin plates on both sides of the longitudinal groove
  • the use of steel bars to connect concrete sheets can improve the integrity of the precast concrete and the post-cast concrete poured in the longitudinal grooves; the steel bars are conveniently formed and transported in the longitudinal grooves; the steel bars in the longitudinal grooves are convenient to arrange the prefabricated members.
  • different prefabricated members can be joined together by, for example, placing a reinforcing ring and interfacing the reinforcing bars and pouring concrete.
  • the same technical effect can be achieved by joining one or more reinforced concrete trusses or one or one web opening cold-formed thin-walled steel sheet on both sides of the longitudinal groove.
  • the chord of the reinforced truss is buried in the thin plates on both sides of the longitudinal groove, and the web is connected to the concrete sheet.
  • the flange of the cold-formed thin-walled steel is buried in the thin plates on both sides of the longitudinal groove. Its cross section can be C-shaped or Z-shaped or I-shaped.
  • the prefabricated reinforced concrete member has a longitudinal hole, which can be a square hole, a round hole or the like.
  • transverse holes are formed between the longitudinal holes and the longitudinal grooves.
  • lateral holes may be provided between the longitudinal grooves on both sides.
  • the present invention has the following advantages over the prior art.
  • the prefabricated reinforced concrete member of the invention has a longitudinal groove on the side, and the side edges of the thin plate on both sides of the longitudinal groove have lateral grooves, and the steel bars are connected to both sides of the lateral groove, which can improve the post-casting of the precast concrete and the post-casting in the longitudinal groove.
  • the integrity of the concrete; the connecting reinforcement between the prefabricated reinforced concrete members can be anchored in the longitudinal grooves or anchored in the lateral grooves on the sides of the thin plates on both sides of the longitudinal grooves to reduce the spacing between the precast reinforced concrete members.
  • the integrity of the precast concrete and the post-cast concrete in the longitudinal groove can be improved; the steel bar is conveniently formed and transported in the longitudinal groove.
  • the connecting steel bars between the prefabricated members extend into the longitudinal grooves, which improves the integrity between the prefabricated members; the connecting steel bars between the prefabricated members and the steel bars connecting the concrete sheets form a steel skeleton to ensure the integrity of the connection.
  • the prefabricated reinforced concrete member of the invention is hung with a steel ring or a steel bar, and the steel ring or the steel bar is hinged on the prefabricated member, and the anchor steel bar different from the prior art prefabricated member is fixed and anchored in the concrete, and the position can be freely adjusted within a certain range;
  • the steel ring can be temporarily fixed so as not to extend the side of the precast concrete member to facilitate the transportation and hoisting of the precast reinforced concrete members; after the prefabricated components are installed in place, the steel ring can be easily adjusted to position and adjacent
  • the prefabricated members are anchored to the steel bars to facilitate the reinforcement of the steel bars between the prefabricated components.
  • the steel ring is a welded steel ring or a closed stirrup, which is mounted on the component after the prefabricated component is demolded, which is convenient for production.
  • Figure 1 is a schematic illustration of an embodiment of the invention.
  • FIG. 2 is a schematic view of another embodiment of the present invention.
  • FIG. 3 is a schematic illustration of another embodiment of the invention.
  • Figure 4 is a schematic illustration of another embodiment of the invention.
  • Figure 5 is a schematic illustration of another embodiment of the present invention.
  • Figure 6 is a schematic illustration of another embodiment of the invention.
  • Figure 7 is a schematic illustration of another embodiment of the present invention.
  • Figure 8 is a schematic illustration of another embodiment of the present invention.
  • Figure 9 is a schematic illustration of another embodiment of the invention.
  • Figure 10 is a schematic illustration of another embodiment of the present invention.
  • the markings in the drawings mean: 1 prefabricated reinforced concrete members 2 longitudinal grooves 3 concrete sheets 4 transverse grooves 5 steel bars 6 Reinforcing ring 7 Longitudinal hole 8 Reinforcement for joining concrete sheets 9 Reinforced truss 10 Cold-formed thin-walled steel 11 Transverse holes 12 Precast reinforced concrete members.
  • FIG. 1 An embodiment of the precast reinforced concrete member proposed by the present invention is shown in Fig. 1.
  • the front side of the precast reinforced concrete member 1 has a longitudinal groove 2
  • Fig. 1 An embodiment of the precast reinforced concrete member proposed by the present invention is shown in Fig. 1.
  • the prefabricated reinforced concrete member 1 has a longitudinal groove 2 on its side, a concrete sheet 3 on both sides of the longitudinal groove, and a lateral groove on the side of the side concrete sheet 3
  • the two sides of the lateral groove 4 are connected with the reinforcing bar 5, and the reinforcing bar 5 is hung with the reinforcing bar 12 .
  • Longitudinal groove 2 and lateral groove 4 The dimensions are determined according to the requirements of force, production, construction, etc., and the cross section is rectangular, trapezoidal, and the like.
  • Reinforcement 5 in prefabricated reinforced concrete members 1 Fully anchored.
  • the reinforcing ring is a closed stirrup or a welded steel ring.
  • the longitudinal groove 2 may have a trapezoidal cross section as shown in Fig. 2 or other shapes.
  • the precast reinforced concrete member 1 has a longitudinal hole 7 Or open more than one longitudinal hole 7 , as shown in Figure 3.
  • a transverse hole 11 is formed between the longitudinal hole and the longitudinal groove, as shown in Fig. 8. .
  • a transverse hole 11 is opened between the longitudinal grooves 2 of the precast reinforced concrete member 1, as shown in Fig. 9.
  • a row of reinforcing bars is connected between the concrete sheets 3
  • the concrete sheet 3 has more than one row of steel bars 8 , as shown in Figure 5.
  • a reinforced concrete truss 9 is connected between the concrete sheets 3, and the reinforced concrete truss 9 The chord is buried in the thin plate 3 on both sides of the longitudinal groove, and the web is connected to the concrete sheet 3 .
  • Fig. 1 In another embodiment of the present invention, as shown in Fig.
  • the concrete sheet 3 is connected with a web opening cold-formed thin-walled steel 10
  • the flange of the cold-formed thin-walled steel 10 is buried in a thin plate on both sides of the longitudinal groove, and its cross section may be C-shaped or Z-shaped or I-shaped.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

一种预制钢筋混凝土构件（1），侧面开有纵向凹槽（2），纵向凹槽（2）两侧薄板（3）的侧边开有横向凹槽（4），横向凹槽（4）的两侧面连有钢筋（5），钢筋（5）上挂有钢筋（12）或钢筋环（6）。该构件可工业化生产，应用于各种承重结构中。

Description

一种预制钢筋混凝土构件
技术领域
本发明属于预制钢筋混凝土结构构件技术领域，尤其涉及一种适用于装配整体式结构的预制钢筋混凝土构件。
背景技术
现浇钢筋混凝土结构施工过程中现场制作多，湿作业多，有大量模板工程、脚手架工程等中间环节，浪费资源，污染环境；从业人员素质、施工现场环境等对建造质量影响很大，带来建筑性能、质量和耐久性等问题。要改变现浇钢筋混凝土结构的现状，应大力发展预制混凝土结构。预制混凝土结构的主要结构构件在工厂里制作，生产效率高、质量好，节省资源和能源，有利于可持续发展。采用预制混凝土结构是建筑工业化发展的方向，也是住宅产业化发展的方向。
预制混凝土结构中预制构件间有水平接缝、竖向接缝等，接缝的受力性能决定了结构整体性能。现有的预制构件间接缝连接较为复杂。
发明内容
本发明提供了一种预制钢筋混凝土构件，可方便预制钢筋混凝土构件的安装和钢筋连接，改善接缝的受力性能，提高建筑结构工业化水平。
为达到上述目的，本发明提出一种预制钢筋混凝土构件，该构件侧面开有纵向凹槽，则纵向凹槽两侧有混凝土薄板；所述纵向凹槽两侧薄板的侧边开有横向凹槽，横向凹槽的两侧面连有钢筋，钢筋在预制钢筋混凝土构件中充分锚固；所述钢筋上挂有钢筋或钢筋环；所述钢筋环为封闭箍筋或焊接钢筋环。由于预制钢筋混凝土构件间的钢筋可锚固在横向凹槽或纵向凹槽内，因此可减少预制混凝土构件间的距离，减少模板量。钢筋环挂在预制钢筋混凝土构件上，方便运输、安装，方便与其他构件钢筋连接。
所述预制钢筋混凝土构件侧面的纵向凹槽两侧薄板间连有一列或一列以上钢筋；或者纵向凹槽两侧薄板间连有一个或一个以上钢筋桁架；或者所述纵向凹槽两侧薄板间连有一个或一个腹板开孔冷弯薄壁型钢。采用钢筋连接混凝土薄板，可提高预制混凝土与后浇于纵向凹槽内的后浇混凝土间的整体性；钢筋在纵向凹槽内，方便制作和运输；纵向凹槽内方便布置钢筋将预制构件连在一起，例如通过放置钢筋环与所述钢筋相互交接、浇筑混凝土，可将不同的预制构件连接在一起。在纵向凹槽两侧薄板连结一个或一个以上钢筋桁架或者一个或一个腹板开孔冷弯薄壁型钢，可达到相同的技术效果。钢筋桁架的弦杆埋于所述纵向凹槽两侧薄板内，腹杆连接混凝土薄板。冷弯薄壁型钢的翼缘埋于纵向凹槽两侧薄板内。其截面可为 C 形或 Z 形或工字形等。
所述预制钢筋混凝土构件开有纵向孔洞，可以方孔、圆孔等。为了增加后浇于纵向孔洞内混凝土的整体性，纵向孔洞和纵向凹槽间开有横向孔洞。当预制钢筋混凝土构件没有纵向孔洞时，其两侧纵向凹槽间可设置横向孔洞。
本发明与现有技术相比具有以下优势。
本发明的预制钢筋混凝土构件侧面有纵向凹槽，纵向凹槽两侧薄板的侧边有横向凹槽，钢筋连接横向凹槽两侧，可提高预制混凝土与后浇于纵向凹槽内的后浇混凝土间的整体性；预制钢筋混凝土构件间的连接钢筋可锚固于纵向凹槽内，或锚固于纵向凹槽两侧薄板的侧边的横向凹槽内，减少预制钢筋混凝土构件间的间距。当纵向凹槽间有钢筋或钢筋桁架等连接混凝土薄板时，可提高预制混凝土与纵向凹槽内的后浇混凝土间的整体性；钢筋在纵向凹槽内，方便制作和运输。预制构件间的连接钢筋伸入纵向凹槽内，提高了预制构件间的整体性；预制构件间的连接钢筋与连接混凝土薄板的钢筋形成钢筋骨架，保证了连接整体性。
本发明的预制钢筋混凝土构件挂有钢筋环或钢筋，钢筋环或钢筋铰接在预制构件上，区别于现有技术预制构件的锚连钢筋固定锚固在混凝土内，可在一定范围内自由调整位置；在运输、吊装时，钢筋环可临时固定，使其不伸出预制混凝土构件侧边，方便预制钢筋混凝土构件的运输、吊装；在预制构件安装就位后，钢筋环可方便调整位置与相邻预制构件的锚连钢筋连接，从而方便预制构件间的钢筋连接。钢筋环为焊接钢筋环或封闭箍筋，在预制构件拆模后安装在构件上，方便制作。
附图说明
图 1 是本发明一种实施例的示意图。
图 2 是本发明另一种实施例的示意图。
图 3 是本发明另一种实施例的示意图。
图 4 是本发明另一种实施例的示意图。
图 5 是本发明另一种实施例的示意图。
图 6 是本发明另一种实施例的示意图。
图 7 是本发明另一种实施例的示意图。
图 8 是本发明另一种实施例的示意图。
图 9 是本发明另一种实施例的示意图。
图 10 是本发明另一种实施例的示意图。
附图中的标记含义为： 1 预制钢筋混凝土构件 2 纵向凹槽 3 混凝土薄板 4 横向凹槽 5 钢筋 6 钢筋环 7 纵向孔洞 8 连接混凝土薄板的钢筋 9 钢筋桁架 10 冷弯薄壁型钢 11 横向孔洞 12 预制钢筋混凝土构件挂的钢筋。
具体实施方式
下面结合附图和实施例，对本发明预制钢筋混凝土构件进行详细的描述。
本发明提出的预制钢筋混凝土构件的一种实施例，如图 1 ，预制钢筋混凝土构件 1 侧面有纵向凹槽 2 ，纵向凹槽两侧有混凝土薄板 3 ，混凝土薄板 3 的侧边开有横向凹槽 4 ，横向凹槽 4 的两侧面连有钢筋 5 ，钢筋 5 上挂有钢筋环 6 。在另一实施例中，如图 10 ，预制钢筋混凝土构件 1 侧面有纵向凹槽 2 ，纵向凹槽两侧有混凝土薄板 3 ，一侧混凝土薄板 3 的侧边开有横向凹槽 4 ，横向凹槽 4 的两侧面连有钢筋 5 ，钢筋 5 上挂有钢筋 12 。纵向凹槽 2 和横向凹槽 4 的尺寸根据受力、制作、施工等要求确定，横截面为矩形、梯形等。钢筋 5 在预制钢筋混凝土构件 1 中充分锚固。钢筋环为封闭箍筋或焊接钢筋环。为了增加整体性，纵向凹槽 2 的横截面可为梯形，如图 2 ，或者其他形状。
本发明提出的预制钢筋混凝土构件的另一种实施例，如图 2 ，预制钢筋混凝土构件 1 开有 1 个纵向孔洞 7 ；或者开有一个以上纵向孔洞 7 ，如图 3 。为了增加后浇于纵向孔洞 7 内混凝土的整体性，纵向孔洞和纵向凹槽间开有横向孔洞 11 ，如图 8 。为了增加后浇混凝土与预制混凝土的整体性，在预制钢筋混凝土构件 1 的纵向凹槽 2 间开有横向孔洞 11 ，如图 9 。
本发明提出的预制钢筋混凝土构件的另一种实施例中，如图 4 ，混凝土薄板 3 间连有一列钢筋 8 ；或者混凝土薄板 3 间连有一列以上钢筋 8 ，如图 5 。在本发明的另一种实施例中，如图 6 ，混凝土薄板 3 间连有钢筋桁架 9 ，钢筋桁架 9 的弦杆埋于所述纵向凹槽两侧薄板 3 内，腹杆连接混凝土薄板 3 。在本发明的另一种实施例中，如图 7 ，混凝土薄板 3 间连有腹板开孔冷弯薄壁型钢 10 ，冷弯薄壁型钢 10 的翼缘埋于纵向凹槽两侧薄板内，其截面可为 C 形或 Z 形或工字形等。

Claims (8)

  1. 一种预制钢筋混凝土构件，该构件侧面开有纵向凹槽，所述纵向凹槽两侧薄板的侧边开有横向凹槽，其特征在于，横向凹槽的两侧面连有钢筋，所述钢筋上挂有钢筋或钢筋环。
  2. 根据权利要求1所述的预制钢筋混凝土构件，其特征在于，所述纵向凹槽两侧薄板间连有一列或一列以上钢筋；或者纵向凹槽两侧薄板间连有一个或一个以上钢筋桁架；或者所述纵向凹槽两侧薄板间连有一个或一个腹板开孔冷弯薄壁型钢。
  3. 根据权利要求1所述的预制钢筋混凝土构件，其特征在于，所述预制钢筋混凝土构件开有纵向孔洞。
  4. 根据权利要求1或3所述的预制钢筋混凝土构件，其特征在于，所述纵向孔洞和纵向凹槽间开有横向孔洞，或者所述纵向凹槽间开有横向孔洞。
  5. 根据权利要求2所述的预制钢筋混凝土构件，其特征在于，所述钢筋桁架的弦杆埋于所述纵向凹槽两侧薄板内。
  6. 根据权利要求2所述的预制钢筋混凝土构件，其特征在于，所述冷弯薄壁型钢的翼缘埋于所述纵向凹槽两侧薄板内。
  7. 根据权利要求2所述的预制钢筋混凝土构件，其特征在于，所述冷弯薄壁型钢截面为C形或Z形或工字形。
  8. 根据权利要求1所述的预制钢筋混凝土构件，其特征在于，所述钢筋环为封闭箍筋或焊接钢筋环。
PCT/CN2015/073763 2014-03-10 2015-03-06 一种预制钢筋混凝土构件 Ceased WO2015135442A1 (zh)

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CN111851861A (zh) * 2020-07-30 2020-10-30 华南理工大学 一种既有h型钢柱的部分预制加固结构及其施工工艺
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