WO2019206194A1 - Prefabricated floor slab, connection structure thereof and construction method therefor - Google Patents

Prefabricated floor slab, connection structure thereof and construction method therefor Download PDF

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Publication number
WO2019206194A1
WO2019206194A1 PCT/CN2019/084138 CN2019084138W WO2019206194A1 WO 2019206194 A1 WO2019206194 A1 WO 2019206194A1 CN 2019084138 W CN2019084138 W CN 2019084138W WO 2019206194 A1 WO2019206194 A1 WO 2019206194A1
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Prior art keywords
prefabricated
floor slab
prefabricated floor
reinforcing
slab
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PCT/CN2019/084138
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French (fr)
Chinese (zh)
Inventor
李藏柱
Original Assignee
Li Cangzhu
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Priority to CN201810381322.3A priority Critical patent/CN108661221A/en
Priority to CN201810381322.3 priority
Application filed by Li Cangzhu filed Critical Li Cangzhu
Publication of WO2019206194A1 publication Critical patent/WO2019206194A1/en

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/023Separate connecting devices for prefabricated floor-slabs
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/40Separate connecting elements
    • E04B1/41Connecting devices specially adapted for embedding in concrete
    • E04B1/4171Nailable or non-threaded screwable elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/61Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • E04B1/612Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/40Separate connecting elements
    • E04B1/41Connecting devices specially adapted for embedding in concrete
    • E04B2001/4192Connecting devices specially adapted for embedding in concrete attached to concrete reinforcing elements, e.g. rods or wires

Abstract

Disclosed are a prefabricated floor slab, a connection structure thereof and a construction method therefor. The prefabricated floor slab comprises a floor slab module (1), wherein connecting steel bars (11) are fixed to two opposite circumferential side faces of the floor slab module (1); enlarged heads (110) are fixed to the ends of the connecting steel bars (11) extending out of the floor slab module (1); the size of the enlarged head (110) is larger than the external diameter of the connecting steel bar (11); and a first post-cast strip (102) is reserved between two adjacent prefabricated floor slabs, the two opposite connecting steel bars (11) in the two adjacent prefabricated floor slabs are connected by means of sleeves (2), and mounting holes (22) adapted to the external diameter of the ends of the enlarged heads (110) are formed in the sleeves (2). The prefabricated floor slab is easy to connect, and has a good overall performance.

Description

一种预制楼板及其连接结构及其施工方法Prefabricated floor slab and connecting structure thereof and construction method thereof 技术领域Technical field
本发明涉及装配式建筑领域,具体涉及一种预制楼板及其连接结构及其施工方法。The invention relates to the field of fabricated buildings, in particular to a prefabricated floor slab and a connecting structure thereof and a construction method thereof.
背景技术Background technique
目前,建筑楼板的施工主要采用现浇,传统预制空心板和预制叠合板三种方式。At present, the construction of building slabs mainly adopts three methods: cast-in-place, traditional prefabricated hollow slab and prefabricated laminated slab.
一、现浇即是对建筑的墙板、楼板和梁柱结构在现场进行钢筋绑扎和混凝土浇筑。这种模式施工成的建筑虽然整体性好、抗震性好的优点,但是存在很多缺点,具体说明如下:First, the cast-in-place is to carry out steel bar binding and concrete pouring on the wall panel, floor slab and beam-column structure of the building. Although the building constructed in this mode has the advantages of good integrity and good earthquake resistance, it has many shortcomings, which are as follows:
1、需要大量模板及支撑架等周转材料,浪费大,不环保;1. Requires a large number of turnover materials such as templates and support frames, which is wasteful and not environmentally friendly;
2、现场分为模板安装、钢筋绑扎、浇筑混凝土和养护等多道工序,施工难度大,且受天气影响,施工质量难以控制,容易造成开裂,影响使用寿命,降低抗震性;2, the site is divided into template installation, steel banding, pouring concrete and curing, etc., the construction is difficult, and affected by the weather, the construction quality is difficult to control, easy to cause cracking, affecting the service life and reducing the earthquake resistance;
3、由于工序多,而且现浇混凝土需要达到一定强度后才能进行上层建筑的施工,施工周期长;3. Due to the large number of processes, and the cast-in-place concrete needs to reach a certain strength, the construction of the superstructure can be carried out, and the construction period is long;
4、由于工序多,现场交叉作业,相互干扰,不安全,不环保;4, due to many processes, cross-site operations, mutual interference, unsafe, not environmentally friendly;
5、由于现浇的钢筋混凝土结构自重大,楼板的跨度受限:平板现浇结构4米已经达到极限,井字梁结构也最多只能达到6米,而且井字梁结构厚度较大,影响了房间的净高。5. Because the cast-in-place reinforced concrete structure is self-contained, the span of the slab is limited: the flat cast-in-place structure of 4 meters has reached the limit, the well-shaped beam structure can only reach 6 meters at most, and the thickness of the well-shaped beam structure is large, affecting The net height of the room.
二、传统预制空心板是在工厂加工,实现了工业化,具有加工时不受季节和天气限制,质量能够保证,节省大量模板及支撑等优点。Second, the traditional prefabricated hollow slab is processed in the factory, realized industrialization, has the advantages of no weather and weather restrictions during processing, quality can be guaranteed, and a large number of templates and supports are saved.
但是现有的预制空心板如图44所示,缺点如下:However, the existing prefabricated hollow plate is as shown in FIG. 44, and the disadvantages are as follows:
1、预制板的四周为光面,搭接在梁上以后,相邻预制板之间没有连接,所以整体性差,抗震性大大降低,只能适用于低层建筑;1. The perimeter of the prefabricated panel is smooth. After lap jointing on the beam, there is no connection between adjacent prefabricated panels, so the overallity is poor and the seismic resistance is greatly reduced. It can only be applied to low-rise buildings;
2、相邻预制板拼接后,形成上下贯穿的拼接缝,容易发生开裂、渗漏和装饰层的空鼓开裂;2. After the adjacent prefabricated panels are spliced, the joint seams running up and down are formed, which are prone to cracking, leakage and hollow cracking of the decorative layer;
3、由于现有空心楼板中没有设置横向钢筋,所以其宽度受限,一般只有1.2米;3. Since there is no transverse steel bar in the existing hollow floor slab, its width is limited, generally only 1.2 meters;
4、现有空心楼板安装完成后还需要进行装饰层及防火层的处理,造成二次施工。4. After the installation of the existing hollow floor slab, the treatment of the decorative layer and the fireproof layer is required, resulting in secondary construction.
三、预制叠合板楼板分两部分组成,底部为预制部分(如图45所示),多为薄板,在工厂加工完成,运输至现场吊装就位后,在预制板面上进行二次钢筋绑扎与顶部混凝土板层的浇筑。叠合板技术被现有装配式建筑普遍采用,一是因为预制板部分可以作为现浇板的底部模板使用,节约了模板;二是因为顶部现浇板为整面板,而且钢筋相互拉接,所以相比 传统的预制空心板的整体性好。但是存在如下缺点:Third, the prefabricated laminate floor is composed of two parts, the bottom is the prefabricated part (as shown in Figure 45), mostly thin, processed in the factory, transported to the site for lifting, and then the second steel bar is tied on the prefabricated surface. Pouring with a layer of concrete slabs at the top. The laminated board technology is commonly used in existing prefabricated buildings. One is because the prefabricated part can be used as the bottom formwork of the cast-in-place board, which saves the formwork; the second is because the top cast-in-place board is the whole panel, and the steel bars are pulled together, so Compared with the traditional prefabricated hollow slab, the integrity is good. However, the following disadvantages exist:
1、由于叠合楼板为双层结构,所以其厚度比现浇楼板更厚,从而增加了原材料,自重增大,降低了可承受荷载和抗震性;1. Since the laminated slab is a double-layer structure, its thickness is thicker than that of the cast-in-situ slab, which increases the raw materials, increases its own weight, and reduces the load and shock resistance;
2、双层板结构,在结合层处容易空鼓开裂,而且二次浇筑质量不易控制,容易出现开裂等质量通病;2, double-layer plate structure, easy to hollow crack at the joint layer, and the quality of secondary casting is not easy to control, prone to cracks and other quality problems;
3、施工现场既要吊装,又要现浇,工序多,施工复杂;3. The construction site should be hoisted, cast-in-place, with many processes and complicated construction;
4、由于存在现浇层,所以只能等待现浇层强度达到一定要求后,才能进行上层结构的施工,所以工期长;4. Because there is a cast-in-place layer, it can only wait for the strength of the cast-in-place layer to meet certain requirements before the construction of the superstructure can be carried out, so the construction period is long;
5、由于其自重大,所以跨度有限,目前只能应用于住宅建筑中,对于地下车库、商场等建筑不适用。5, due to its self-importance, so the span is limited, currently can only be used in residential buildings, not applicable to underground garages, shopping malls and other buildings.
发明内容Summary of the invention
本发明的目的是提供一种预制楼板及其连接结构,其具有相邻楼板容易连接,整体性好的优点。The object of the present invention is to provide a prefabricated floor slab and a connecting structure thereof, which have the advantages that the adjacent floor slabs are easy to connect and have good integrity.
本发明的上述技术目的是通过以下技术方案得以实现的:一种预制楼板,包括楼板模块,楼板模块相对的两个周侧面上固定有连接钢筋,连接钢筋伸出楼板模块的端部固定扩大头,扩大头的尺寸大于连接钢筋的外径。The above technical object of the present invention is achieved by the following technical solutions: a prefabricated floor slab, comprising a floor slab module, the opposite side walls of the slab module are fixed with connecting steel bars, and the ends of the reinforced floor panels are extended and enlarged. The size of the enlarged head is larger than the outer diameter of the connecting reinforcing bar.
进一步地,楼板模块内与连接钢筋平行固定预应力钢筋。Further, the prestressed reinforcing bar is fixed in parallel with the connecting reinforcing bar in the floor module.
进一步地,连接钢筋部分预埋或者通长设置在楼板模块内。Further, the connecting steel portion is embedded or lengthened in the floor module.
进一步地,楼板模块内预埋钢筋网架。Further, the reinforcing mesh frame is embedded in the floor module.
进一步地,钢筋网架包括上钢筋网、与上钢筋网平行的下钢筋网,上钢筋网和下钢筋网之间连接支撑钢筋网,支撑钢筋网垂直支撑在上钢筋网和下钢筋网之间。Further, the steel mesh frame comprises an upper reinforcing mesh, a lower reinforcing mesh parallel to the upper reinforcing mesh, a supporting reinforcing mesh connected between the upper reinforcing mesh and the lower reinforcing mesh, and the supporting reinforcing mesh is vertically supported between the upper reinforcing mesh and the lower reinforcing mesh .
进一步地,楼板模块的外周侧面与连接钢筋垂直的周侧面预埋横向钢筋。Further, the outer side surface of the floor module and the circumferential side perpendicular to the connecting steel bar are embedded with the horizontal reinforcing bar.
进一步地,楼板模块的上表面固定有装饰层和/或耐磨层;楼板模块的下表面固定有保温层和/或防火层和/或隔音层。Further, the upper surface of the floor module is fixed with a decorative layer and/or a wear layer; the lower surface of the floor module is fixed with an insulation layer and/or a fireproof layer and/or a sound insulation layer.
通过以上技术方案,将相邻的预制楼板很好地连接在一起,提高了楼板的整体性,而且套筒连接结构采用卡接原理,将钢筋接头的拉力转化为对筒体的混凝土的压力,进而传导至筒体上,连接更加牢固,解决了传统预制空心板整体性和抗震性差的问题。Through the above technical solution, the adjacent prefabricated floor slabs are well connected together, the slab integrity is improved, and the sleeve connection structure adopts the clamping principle, and the tensile force of the steel joint is converted into the pressure of the concrete of the cylinder body. Furthermore, it is transmitted to the cylinder body, and the connection is more firm, which solves the problem of the integrity of the conventional prefabricated hollow slab and the poor earthquake resistance.
本发明的另一目的在于提供一种预制楼板的连接结构,其包括上述的预制楼板,相邻的两个预制楼板之间预留第一后浇带,相邻两个预制楼板中相对的两个连接钢筋采用套筒相连,套筒上开设与扩大头端部外径适配的安装孔。Another object of the present invention is to provide a joint structure of a prefabricated floor panel, which comprises the above-mentioned prefabricated floor slab, a first post-casting strip is reserved between two adjacent prefabricated slabs, and two of the two adjacent prefabricated slabs are opposite The connecting steel bars are connected by a sleeve, and the sleeve is provided with a mounting hole adapted to the outer diameter of the enlarged head end.
进一步地,套筒在第一后浇带中错位排布。Further, the sleeves are misaligned in the first post-cast strip.
进一步地,相邻两个预制楼板的侧面还固定辅助连接筋,辅助连接筋伸出预制楼板的端部设置弯钩部,第一后浇带中穿过若干弯钩部设置通长钢筋。Further, the side of the adjacent two prefabricated slabs is further fixed with an auxiliary connecting rib, and the auxiliary connecting rib extends from the end of the prefabricated slab to provide a hook portion, and the first post-casting strip is provided with a long reinforcing bar through a plurality of hook portions.
本发明的还一目的在于提供一种预制楼板的连接结构的施工方法,其包括如下步骤:Still another object of the present invention is to provide a method of constructing a joint structure of a prefabricated floor panel, comprising the steps of:
S1、在地面预先搭建墙板或者钢架,权利要求1-7任一项所述的预制楼板吊装至墙板或者钢架的上端面、并沿水平面铺展形成楼板,沿水平面相邻的两个预制楼板之间形成第一后浇带;S1, prefabricating a wall panel or a steel frame on the ground, the prefabricated floor slab according to any one of claims 1-7 is hoisted to the upper end surface of the wall panel or the steel frame, and spreads along the horizontal plane to form a slab, two adjacent to the horizontal plane Forming a first post-casting strip between the prefabricated floors;
S2、预制楼板和墙板/钢架的连接位置处均预埋有钢角铁,相邻的两个预制楼板和墙板/钢架所构成的空间形成第二后浇带;S2, prefabricated floor slab and wallboard/steel frame are embedded with steel angle iron, and the space formed by two adjacent prefabricated slabs and wallboard/steel frame forms a second post-casting belt;
S3、相邻两个预制楼板的连接钢筋插入套筒中对齐拼接,穿过弯钩部设置通长钢筋;S3, the connecting steel bars of the adjacent two prefabricated floors are aligned and spliced into the sleeve, and the long reinforcing bars are arranged through the hook portion;
S4、在第一后浇带和第二后浇带的下端部支撑底模,在第一后浇带和第二后浇带中浇筑混凝土;S4, supporting a bottom mold at a lower end portion of the first post-casting strip and the second post-casting strip, and pouring concrete in the first post-casting strip and the second post-casting strip;
S5、第一后浇带和第二后浇带中的混凝土凝固后,在凝固混凝土的上表面和下表面分别做饰面处理。After the concrete in the first post-casting strip and the second post-casting strip is solidified, the upper surface and the lower surface of the solidified concrete are separately treated.
空心结构的设置,减轻了自重,提高了抗震性和隔音、保温性能,而且节材、环保。The hollow structure is arranged to reduce the self-weight, improve the shock resistance, sound insulation and heat preservation performance, and save materials and environmental protection.
预制楼板内设置预应力钢筋,增加了板板跨度,而且节省钢材、降低成本,提高了楼板的延展性和抗震性,能够适用于商业、工业、仓储和地下停车场等大空间结构的建筑。Pre-stressed steel bars are placed in the prefabricated slabs to increase the slab span, save steel, reduce costs, improve the ductility and shock resistance of the slabs, and can be applied to large space structures such as commercial, industrial, warehouse and underground parking lots.
将预制楼板加工成保温、装饰一体化板,现场不需要大面积二次施工,减少了找平层、装饰、保温层等工作。预制楼板为一体预制,工厂化加工,节约材料,施工效率高,工期短,成本低,经济性好。The prefabricated floor slab is processed into a heat-insulating and decorative integrated board. The site does not require large-area secondary construction, which reduces the work of leveling, decoration and insulation. Prefabricated slabs are prefabricated, factory-processed, material saving, high construction efficiency, short construction period, low cost and good economy.
综上所述,本发明具有以下有益效果:In summary, the present invention has the following beneficial effects:
1、该结构轻质、高强,而且采用连接钢筋和套筒技术连接,整体性好,抗震性好;1. The structure is light and high-strength, and it is connected by connecting steel bars and sleeves. It has good integrity and good earthquake resistance;
2、空心结构节村率40%以上,隔音保温性能好;保温装饰一体化,解决了混凝土开裂问题,耐久性好,减少了二次作业,缩短了工期;2. The hollow structure has a village rate of more than 40%, and the sound insulation performance is good; the insulation and decoration are integrated, the concrete cracking problem is solved, the durability is good, the secondary operation is reduced, and the construction period is shortened;
3、预制楼板自重轻、强度高,跨度大,可适用范围广;3. Prefabricated slabs are light in weight, high in strength, large in span, and can be used in a wide range;
4、现场施工时,无需等待混凝土强度上升,可以连续作业,大幅缩短工期。4. When constructing on site, there is no need to wait for the concrete strength to rise, and it can be operated continuously, which greatly shortens the construction period.
附图说明DRAWINGS
图1为实施例一中预制楼板的结构图;Figure 1 is a structural view of a prefabricated floor in the first embodiment;
图2是为显示连接钢筋为通长钢筋而作的预制楼板示意图;Figure 2 is a schematic view showing a prefabricated floor slab for connecting the reinforcing bars to the long reinforcing bars;
图3是为显示连接钢筋为U形而作的预制楼板示意图;Figure 3 is a schematic view showing a prefabricated floor slab for connecting U-shaped connecting bars;
图4是预制楼板内预应力钢筋位于靠近下表面的示意图;Figure 4 is a schematic view of the prestressed steel bar in the prefabricated floor slab located near the lower surface;
图5是预制楼板内预应力钢筋上下排布的结构示意图;Figure 5 is a schematic view showing the structure of the prestressed steel bars in the prefabricated floor slab;
图6为预应力钢筋端部连接扩大头的结构示意图;Figure 6 is a schematic view showing the structure of the end of the prestressed reinforcing bar connecting the enlarged head;
图7为预制楼板内设置横向钢筋的示意图;Figure 7 is a schematic view showing the provision of transverse reinforcing bars in the prefabricated floor slab;
图8是预制楼板内预埋钢筋网架的示意图;Figure 8 is a schematic view of a pre-embedded steel mesh frame in a prefabricated floor;
图9是钢筋网架中支撑单元呈U形的示意图;Figure 9 is a schematic view showing the support unit in the steel mesh frame in a U shape;
图10是钢筋网架中制成单元呈三角形的示意图;Figure 10 is a schematic view showing a unit made of a triangle in a steel mesh frame;
图11是空心预制楼板的周侧面预埋U形钢筋的示意图;Figure 11 is a schematic view showing a pre-buried U-shaped reinforcing bar on the circumferential side of the hollow prefabricated floor slab;
图12是预制楼板的周侧面预埋U形钢筋的示意图;Figure 12 is a schematic view of a pre-formed U-shaped steel bar on the circumferential side of the prefabricated floor slab;
图13是楼板模块用于车库时附加层结构的示意图;Figure 13 is a schematic view showing an additional layer structure when the floor panel is used in a garage;
图14是附加层结构贴附于楼板模块表面的结构示意图;Figure 14 is a schematic view showing the structure of an additional layer structure attached to the surface of the floor module;
图15是附加层结构设置于凹陷槽的结构示意图;Figure 15 is a schematic view showing the structure of an additional layer structure disposed in the recessed groove;
图16是预制楼板周侧面安装预埋件的示意图;Figure 16 is a schematic view showing the pre-embedded side of the prefabricated floor slab;
图17是预制楼板表面安装预埋件的示意图;Figure 17 is a schematic view showing the prefabricated floor surface mounted embedded parts;
图18是预制楼板沿宽度方向排布的结构示意图;Figure 18 is a schematic structural view of the prefabricated floor slab arranged in the width direction;
图19是预制楼板拼接的结构示意图;Figure 19 is a schematic structural view of a prefabricated floor slab;
图20是预制楼板拼接时第一后浇带中预埋通长钢筋和箍筋的示意图;Figure 20 is a schematic view showing the pre-buried long steel bars and stirrups in the first post-casting strip when the prefabricated floor slabs are spliced;
图21是预制楼板拼接时第一后浇带中预埋U形加强钢筋的示意图;Figure 21 is a schematic view showing a pre-buried U-shaped reinforcing bar in the first post-casting strip when the prefabricated floor slab is spliced;
图22是预制楼板拼接时,套筒错位排列的结构示意图;Figure 22 is a schematic view showing the structure of the sleeves being misaligned when the prefabricated floor slabs are spliced;
图23是预制楼板连接辅助连接筋的示意图;Figure 23 is a schematic view of the prefabricated floor slab connection auxiliary connecting rib;
图24是预制楼板纵向和横向均采用套筒连接的示意图;Figure 24 is a schematic view showing the longitudinal connection of the prefabricated floor slab and the lateral direction;
图25是预制楼板拼接完成后,在其表面固定附加层结构的示意图;Figure 25 is a schematic view showing the structure of an additional layer fixed on the surface of the prefabricated floor slab after completion of splicing;
图26是预制楼板和工字钢相连的结构示意图;Figure 26 is a schematic view showing the structure of a prefabricated floor slab and an I-beam;
图27是预制楼板和预制混凝土梁相连的示意图;Figure 27 is a schematic view showing the connection of a prefabricated floor slab and a precast concrete beam;
图28是预制楼板和预制混凝土梁连接时,预制混凝土梁中预埋U形连接筋的示意图;Figure 28 is a schematic view showing the pre-buried U-shaped connecting ribs in the precast concrete beam when the prefabricated floor slab and the precast concrete beam are connected;
图29是预制楼板和预制墙板拼接的结构示意图;29 is a schematic structural view of a prefabricated floor slab and a prefabricated wall panel splicing;
图30是预制楼板和预制墙板拼接时,第一后浇带的宽度小于预制墙板厚度的结构示意图;Figure 30 is a structural schematic view showing the width of the first post-casting strip being smaller than the thickness of the pre-formed wallboard when the prefabricated floor slab and the prefabricated wall panel are spliced;
图31是预制楼板的端头与上层预制墙板之间留有混凝土的浇筑口的示意图;Figure 31 is a schematic view showing a concrete pouring port between the end of the prefabricated floor slab and the upper prefabricated wall panel;
图32是楼板模块和预制墙板的拼接位置处预埋钢板的示意图;Figure 32 is a schematic view of the pre-embedded steel plate at the splicing position of the floor slab module and the prefabricated wall panel;
图33是楼板模块和预制墙板的上下面内预埋螺栓套筒的示意图;Figure 33 is a schematic view of the pre-embedded bolt sleeve in the upper and lower surfaces of the floor module and the prefabricated wall panel;
图34是楼板模块和预制墙板的周侧面预埋螺栓套筒的示意图;Figure 34 is a schematic view of the circumferential side of the prefabricated bolt sleeve of the floor panel module and the prefabricated wall panel;
图35是缩口式钢筋连接套筒中筒体的结构示意图;Figure 35 is a schematic structural view of a cylinder in a shrink-type reinforcing steel connecting sleeve;
图36是缩口的端面示意图;Figure 36 is a schematic end view of the neck;
图37是套筒和连接钢筋的配合示意图;Figure 37 is a schematic view of the fit of the sleeve and the connecting bar;
图38是缩口式钢筋连接套筒与预制板的连接关系示意图;Figure 38 is a schematic view showing the connection relationship between the shrink-type reinforcing bar connecting sleeve and the prefabricated plate;
图39是分体式筒体的结构示意图;Figure 39 is a schematic structural view of a split type cylinder;
图40是分体式筒体和预制板的连接关系示意图;Figure 40 is a schematic view showing the connection relationship between the split cylinder and the prefabricated panel;
图41是套筒与竖直状态的两根钢筋相连的结构示意图;Figure 41 is a schematic view showing the structure of the sleeve connected to the two reinforcing bars in the vertical state;
图42是外伸入卡件式套筒的结构示意图;Figure 42 is a schematic structural view of the outer sleeve member;
图43是外伸入卡件式套筒与连接钢筋的装配示意图;Figure 43 is a schematic view showing the assembly of the outer sleeve and the connecting reinforcing bar;
图44是背景技术中传统预制空心板的附图;Figure 44 is a drawing of a conventional prefabricated hollow panel in the background art;
图45是背景技术中预制叠合板的附图;Figure 45 is a drawing of a prefabricated laminate in the background art;
图46是本发明预制楼板的效果图;Figure 46 is an effect view of the prefabricated floor slab of the present invention;
图47是本发明预制楼板的饰面效果图。Figure 47 is a perspective view of the finish of the prefabricated floor slab of the present invention.
图中,1、楼板模块;11、连接钢筋;110、扩大头;12、预应力钢筋;13、横向钢筋;14、钢筋网架;141、上钢筋网;142、下钢筋网;143、支撑钢筋网;1431、上通长钢筋;1432、下通长钢筋;1433、支撑单元;15、空心孔;16、U形钢筋;17、附加层结构;171、装饰层;172、耐磨层;173、保温层;174、防火层;175、隔音层;176、凹陷槽;18、预埋件;181、预埋钢板;182、预埋角铁;183、螺栓套筒;19、辅助连接筋;191、弯钩部;101、浇筑缺口;102、第一后浇带;1021、通长钢筋;1022、箍筋;1023、U形加强钢筋;1024、加强箍筋;1025、U形连接筋;103、第二后浇带;In the figure, 1, floor module; 11, connecting steel; 110, enlarged head; 12, prestressed steel; 13, transverse steel; 14, steel mesh; 141, upper steel mesh; 142, lower steel mesh; Steel mesh; 1431, long steel bar; 1432, long steel bar; 1433, support unit; 15, hollow hole; 16, U-shaped steel; 17, additional layer structure; 171, decorative layer; 172, wear layer; 173, insulation layer; 174, fireproof layer; 175, sound insulation layer; 176, recessed groove; 18, embedded parts; 181, embedded steel plate; 182, pre-embedded angle iron; 183, bolt sleeve; 191, hook portion; 101, pouring gap; 102, first post-casting strip; 1021, long-length steel; 1022, stirrup; 1023, U-shaped reinforcing steel; 1024, reinforcing stirrup; 1025, U-shaped connecting rib ; 103, the second post-casting belt;
2、套筒;20、栓钉;21、栓钉孔;22、安装孔;3、钢梁;4、预制混凝土梁;5、固定角铁;51、固定螺栓;6、筒体;61、缩口;611、过渡圆锥面;62、注浆孔;63、连接板;631、通孔;64、隔挡元件;65、卡接块;651、卡接孔;66、弹片;7、预制板;71、预制墙板。2, sleeve; 20, stud; 21, stud hole; 22, mounting hole; 3, steel beam; 4, precast concrete beam; 5, fixed angle iron; 51, fixing bolt; 6, cylinder; Shrinking; 611, transitional conical surface; 62, grouting hole; 63, connecting plate; 631, through hole; 64, baffle element; 65, snap block; 651, snap hole; 66, shrapnel; Board; 71, prefabricated wall panels.
具体实施方式detailed description
以下结合实施例对本发明作进一步详细说明。The present invention will be further described in detail below with reference to the embodiments.
实施例一:一种预制楼板,如图1所示,预制楼板根据实际情况按照模具大小进行 浇筑形成楼板模块1。楼板模块1的四周侧面预埋连接钢筋11,连接钢筋11伸出楼板模块1的端部固定扩大头110,扩大头110的外径尺寸大于连接钢筋11的外径,以方便后续将楼板模块1拼接形成楼板。Embodiment 1: A prefabricated floor slab, as shown in Fig. 1, the prefabricated slab is cast according to the actual condition to form a slab module 1. The surrounding side of the floor module 1 is pre-embedded and connected with the reinforcing steel 11, and the connecting reinforcing bar 11 extends from the end of the floor module 1 to fix the enlarged head 110. The outer diameter of the enlarged head 110 is larger than the outer diameter of the connecting reinforcing bar 11, so as to facilitate the subsequent slab module 1 Splicing to form a floor.
如图2所示,连接钢筋11可以通长穿过楼板模块1设置,可以是单层或双层;如图3所示,连接钢筋11也可以部分预埋在楼板模块1中,预埋部分可以是直筋或弯筋,也可将两根连接成U形。As shown in FIG. 2, the connecting steel bar 11 can be disposed through the floor module 1 and can be single or double layer; as shown in FIG. 3, the connecting steel bar 11 can also be partially embedded in the floor module 1, and the embedded part is embedded. It can be a straight rib or a curved rib, or it can be connected in a U shape.
(为方便说明方向,将设置有连接钢筋11的方向定义为纵向,与其垂直的方向为横向)(For convenience of explanation, the direction in which the reinforcing bars 11 are provided is defined as the longitudinal direction, and the direction perpendicular thereto is the lateral direction)
如图4所示,为了提高楼板模块1的承重强度,穿过楼板模块1设置多个预应力钢筋12,预应力钢筋12在楼板模块1中靠近下表面的位置处、并沿纵向水平方向排布。As shown in FIG. 4, in order to increase the bearing strength of the floor module 1, a plurality of prestressed reinforcing bars 12 are disposed through the floor module 1, and the prestressed reinforcing bars 12 are arranged in the floor module 1 near the lower surface and in the horizontal direction. cloth.
如图5所示,预应力钢筋12还可以在楼板模块1中按照上下方式排布,设置在预制楼板的靠近上表面和/或下表面的位置。下部预应力钢筋12多于上部预应力钢筋12,例如可以是2:1的关系。As shown in FIG. 5, the prestressed reinforcing bars 12 may also be arranged in the up and down manner in the floor module 1, and disposed at a position close to the upper surface and/or the lower surface of the prefabricated floor. The lower prestressed reinforcing bar 12 is more than the upper prestressed reinforcing bar 12, for example, may have a 2:1 relationship.
如图6所示,预应力钢筋12伸出楼板模块1的端部也可以固定扩大头110,扩大头110的外径尺寸大于预应力钢筋12的外径。As shown in FIG. 6, the prestressed reinforcing bar 12 extends beyond the end of the floor module 1 to fix the enlarged head 110. The outer diameter of the enlarged head 110 is larger than the outer diameter of the prestressed reinforcing bar 12.
如图7所示,为了增加楼板模块1横向的宽度,可以在楼板模块1内设置横向钢筋13,横向钢筋13优选靠近楼板模块1的下表面设置,以增强楼板模块1在横向的抗弯性能。As shown in FIG. 7, in order to increase the lateral width of the floor module 1, a transverse reinforcing bar 13 may be disposed in the floor module 1, and the transverse reinforcing bars 13 are preferably disposed near the lower surface of the floor module 1 to enhance the lateral bending resistance of the floor module 1. .
此外,如图8所示,当建筑开间较大,即预制楼板模块1尺寸较大时,在楼板模块1内还可以预埋钢筋网架14。钢筋网架14包括上钢筋网141、与上钢筋网141平行相对设置的下钢筋网142,上钢筋网141和下钢筋网142之间采用若干支撑钢筋网143连接。支撑钢筋网143间隔垂直设置在上钢筋网141和下钢筋网142之间,并且与上钢筋网141和下钢筋网142焊接固定,以提高预制楼板的承重强度。In addition, as shown in FIG. 8, when the building opening is large, that is, the size of the prefabricated floor slab module 1 is large, the reinforcing mesh frame 14 can be embedded in the slab module 1. The reinforcing mesh frame 14 includes an upper reinforcing mesh 141 and a lower reinforcing mesh 142 disposed in parallel with the upper reinforcing mesh 141. The upper reinforcing mesh 141 and the lower reinforcing mesh 142 are connected by a plurality of supporting reinforcing meshes 143. The support reinforcing mesh 143 is vertically disposed between the upper reinforcing mesh 141 and the lower reinforcing mesh 142, and is welded and fixed to the upper reinforcing mesh 141 and the lower reinforcing mesh 142 to improve the load-bearing strength of the prefabricated floor.
在相邻的两个支撑钢筋网143之间可设置通长的空心孔15,以减轻整个楼板模块1的重量,空心孔15为纵向设置。A long hollow hole 15 may be provided between the adjacent two supporting reinforcing meshes 143 to reduce the weight of the entire floor panel module 1, and the hollow holes 15 are longitudinally disposed.
上钢筋网141和下钢筋网142的结构相同,以上钢筋网141的结构为例,其主要是由横钢筋和纵钢筋互相搭接焊接固定,横钢筋和纵钢筋的交叉位置处绑扎固定。同时支撑钢筋网143的上端部与上钢筋网141焊接,支撑钢筋网143的下端部与下钢筋网142焊接。The structure of the upper reinforcing mesh 141 and the lower reinforcing mesh 142 are the same. The structure of the upper reinforcing mesh 141 is taken as an example. The main reinforcing bar and the longitudinal reinforcing bar are welded and fixed to each other, and the intersection of the transverse reinforcing bar and the longitudinal reinforcing bar is tied and fixed. At the same time, the upper end portion of the supporting reinforcing mesh 143 is welded to the upper reinforcing mesh 141, and the lower end portion of the supporting reinforcing mesh 143 is welded to the lower reinforcing mesh 142.
如图9所示,支撑钢筋网143为多道相互平行纵向设置的桁架。支撑钢筋网143主要包括与上钢筋网141平行的上通长钢筋1431,与下钢筋网142平行的下通长钢筋1432, 上通长钢筋1431和下通长钢筋1432平行,上通长钢筋1431和下通长钢筋1432之间支撑由一根钢筋多次弯折形成的多个支撑单元1433。支撑单元1433呈U形(参考图9)或者三角形(参考图10),支撑单元1433的上顶点与上通长钢筋1431和上钢筋网141的横钢筋同时焊接,支撑单元1433的下顶点与下通长钢筋1432和下钢筋网142的横钢筋同时焊接。As shown in Fig. 9, the support reinforcing mesh 143 is a plurality of trusses which are longitudinally arranged parallel to each other. The supporting reinforcing mesh 143 mainly comprises an upper long reinforcing bar 1431 parallel to the upper reinforcing mesh 141, and a lower long reinforcing bar 1432 parallel to the lower reinforcing mesh 142. The upper long reinforcing bar 1431 and the lower long reinforcing bar 1432 are parallel, and the upper long reinforcing bar 1431 is connected. A plurality of supporting units 1433 formed by bending a plurality of reinforcing bars are supported between the lower and the long reinforcing bars 1432. The supporting unit 1433 has a U shape (refer to FIG. 9) or a triangle (refer to FIG. 10), and the upper vertex of the supporting unit 1433 is welded simultaneously with the horizontal reinforcing bars 1431 and the transverse reinforcing bars of the upper reinforcing mesh 141, and the lower vertex and the lower side of the supporting unit 1433 The transverse reinforcing bars 1432 and the transverse reinforcing bars of the lower reinforcing mesh 142 are simultaneously welded.
需要指出的是,上文中所述的钢筋网架14均选择小直径钢筋,例如可以是4-6mm的钢筋;而用于将相邻两块楼板模块1连接的连接钢筋11需采用大直径,以便起到较好的抗拉作用,例如直径为16mm的钢筋。It should be noted that the steel mesh frame 14 described above selects small-diameter steel bars, for example, 4-6 mm steel bars; and the connecting steel bars 11 for connecting two adjacent floor plate modules 1 need to have a large diameter. In order to play a better tensile effect, such as steel bars with a diameter of 16mm.
进一步地,如图8与图9所示,上钢筋网141和/或下钢筋网142的全部或部分钢筋伸出楼板模块1的周侧面;参考图9与图10,上钢筋网141和/或下钢筋网142伸出楼板模块1周侧面的钢筋端头设置为扩大头110。分属不同楼板模块1的伸出钢筋进行绑扎、焊接或套筒2连接后,能够进一步加强楼板的整体性。Further, as shown in FIGS. 8 and 9, all or part of the reinforcing bars of the upper reinforcing mesh 141 and/or the lower reinforcing mesh 142 protrudes from the circumferential side of the floor module 1; with reference to FIGS. 9 and 10, the upper reinforcing mesh 141 and / Or the reinforcing bar 142 extends beyond the side of the first side of the floor module to form the reinforcing head 110. After the extension of the steel bars of the different floor modules 1 for tying, welding or sleeve 2 connection, the integrity of the floor slab can be further enhanced.
如图11与图12所示,楼板模块1的周侧面还可以预埋竖直方向的U形钢筋16,U形钢筋16的开口的一端埋入楼板模块1内。U形钢筋16作为一种将相邻两块预制楼板进行连接的方式,可以与扩大头110连接钢筋11用套筒2连接的方法进行组合,使得楼板的整体性更好。As shown in FIG. 11 and FIG. 12, the U-shaped reinforcing bars 16 in the vertical direction may be embedded in the circumferential side of the floor panel module 1, and one end of the opening of the U-shaped reinforcing bars 16 is buried in the floor panel module 1. The U-shaped steel bar 16 is a kind of way of connecting two adjacent prefabricated floor slabs, and can be combined with the method of connecting the expansion head 110 connecting the steel bars 11 with the sleeve 2, so that the integrity of the floor slab is better.
现有装配式建筑技术,主体结构完成后,还需要进行装饰装修工程。为了将装饰装修工程与主体结构同步进行,还可以在楼板模块1上表面和下表面设置一体成型的附加层结构17。Existing assembly-type construction technology, after the completion of the main structure, also requires decoration and decoration works. In order to synchronize the decoration and decoration works with the main structure, an integrally formed additional layer structure 17 may be provided on the upper surface and the lower surface of the floor panel module 1.
如图13所示,当预制楼板用于车库时,楼板模块1的上表面固定有耐磨层172,下表面设置保温层173、防火层174、隔音层175,或者三者的复合层。当预制楼板用于住宅层时,上表面设置装饰层171,当作现有楼板上的瓷砖等。As shown in FIG. 13, when the prefabricated floor is used for a garage, the upper surface of the floor module 1 is fixed with a wear layer 172, and the lower surface is provided with an insulation layer 173, a fire barrier layer 174, a sound insulation layer 175, or a composite layer of the three. When the prefabricated floor is used for the residential floor, the upper surface is provided with a decorative layer 171 as a tile on the existing floor.
例如,预制楼板的保温层173选择厚度为50mm的聚苯乙烯板,防火层174选择50mm厚的A级防火岩棉板,隔音层175选择厚度为2cm的纤维石膏板。For example, the insulating layer 173 of the prefabricated floor slab is selected from a polystyrene board having a thickness of 50 mm, the fireproof layer 174 is selected from a Class A fireproof rock wool board having a thickness of 50 mm, and the sound insulating layer 175 is selected as a fiber plaster board having a thickness of 2 cm.
如图14与图15所示,为了方便安装预制楼板,楼板模块1的上表面和下表面与预制墙板71或横梁搭接处不设置附加层结构17,即附加装饰层171不会延伸至预制楼板的边缘。As shown in FIG. 14 and FIG. 15, in order to facilitate the installation of the prefabricated floor slab, the upper layer and the lower surface of the floor panel module 1 are not provided with the additional layer structure 17 at the overlap with the prefabricated wall panel 71 or the beam, that is, the additional decorative layer 171 does not extend to Prefabricated slab edges.
如图14所示,附加层结构17贴附于楼板模块1的表面;如图15所示,楼板模块1的表面设置凹陷槽176,附加层结构17设置于凹陷槽176内,其表面与楼板模块1的表面平齐。As shown in FIG. 14, the additional layer structure 17 is attached to the surface of the floor module 1; as shown in FIG. 15, the surface of the floor module 1 is provided with a recessed groove 176, and the additional layer structure 17 is disposed in the recessed groove 176, the surface and the floor. The surface of module 1 is flush.
此外,楼板模块1的附加层结构17中还可以预埋管线,用于后期电线、网线等线路 的穿设。In addition, the additional layer structure 17 of the floor module 1 can also be pre-buried for the passage of wires such as later wires and network cables.
如图16与图17所示,为了方便对预制楼板进行搭接安装,楼板模块1的周侧面靠近底面处或其底面靠近周侧面处设置有预埋件18,预埋件18可以是预埋钢板181或预埋角铁182或螺栓套筒183。As shown in FIG. 16 and FIG. 17, in order to facilitate the erecting installation of the prefabricated floor slab, the circumferential side of the slab module 1 is disposed near the bottom surface or the bottom surface thereof is adjacent to the circumferential side surface, and the embedded part 18 is provided, and the embedded part 18 can be embedded. Steel plate 181 or pre-embedded angle iron 182 or bolt sleeve 183.
此外,为了方便对预制楼板进行搭接安装,预制楼板的四周侧面与连接钢筋11平行固定辅助连接筋19,辅助连接筋19伸出预制楼板的端部向内弯曲形成弯钩部191。预制楼板的周向侧面内凹形成浇筑缺口101,加强相邻预制楼板的连接。预制楼板与墙板或者钢立柱的连接位置处预埋角铁182和螺栓套筒183,以加强预制楼板与墙板或者钢立柱的连接。最终楼板模块1的效果图如I-3所示,饰面效果图如I-4所示。In addition, in order to facilitate the erecting installation of the prefabricated floor slab, the peripheral side of the prefabricated slab is fixed in parallel with the connecting reinforcing bar 11 to fix the auxiliary connecting rib 19, and the end of the auxiliary connecting rib 19 extending out of the prefabricated floor slab is bent inward to form the hook portion 191. The circumferential side of the prefabricated floor slab is recessed to form a pouring gap 101 to strengthen the connection of adjacent prefabricated floors. The angle iron 182 and the bolt sleeve 183 are pre-embedded at the joint position of the prefabricated floor slab with the wall panel or the steel pillar to strengthen the connection of the prefabricated slab to the wall panel or the steel pillar. The rendering of the final floor module 1 is shown in Figure I-3, and the finishing effect is shown in Figure I-4.
实施例二:Embodiment 2:
一种预制楼板的连接结构,如图18所示,由实施例一的预制楼板沿水平方向铺设形成。相邻两块预制楼板在纵向采用带有连接钢筋11进行连接,横向可以直接进行拼接。A joint structure of a prefabricated floor slab, as shown in Fig. 18, is formed by laying a prefabricated floor slab of the first embodiment in a horizontal direction. Two adjacent prefabricated slabs are connected in the longitudinal direction with connecting reinforcing bars 11 and can be directly spliced in the lateral direction.
相邻的两个预制楼板之间形成第一后浇带102,连接钢筋11采用套筒2连接。如图19所示,套筒2的两端开设与连接钢筋11的扩大头110外径适配的安装孔22,两个预制楼板中的连接钢筋11分别插入套筒2中,实现两个预制楼板的连接(套筒2结构及具体连接方式最后段落进行介绍)。A first post-casting strip 102 is formed between two adjacent prefabricated slabs, and the connecting reinforcing bars 11 are connected by a sleeve 2. As shown in FIG. 19, both ends of the sleeve 2 are provided with mounting holes 22 adapted to the outer diameter of the enlarged head 110 connecting the reinforcing bars 11, and the connecting reinforcing bars 11 in the two prefabricated floors are respectively inserted into the sleeve 2 to realize two prefabrication. The connection of the floor (the structure of the sleeve 2 and the specific connection method are described in the last paragraph).
进一步地,如图20所示,为了加强连接,第一后浇带102中还设置多根通长钢筋1021,和将多根通长钢筋1021包围的箍筋1022。四根通长钢筋1021与连接钢筋11垂直设置,其横截面连线形成正方形,在四根通长钢筋1021的外周箍设箍筋1022,通长钢筋1021和箍筋1022的连接位置处焊接固定。Further, as shown in FIG. 20, in order to strengthen the connection, the first post-casting belt 102 is further provided with a plurality of long-length reinforcing bars 1021 and a stirrup 1022 surrounding the plurality of long-length reinforcing bars 1021. The four long-length reinforcing bars 1021 are perpendicularly arranged with the connecting reinforcing bars 11, and the cross-section lines are formed into a square. The hoops 1022 are hooped on the outer circumferences of the four long-length reinforcing bars 1021, and the connecting positions of the long reinforcing bars 1021 and the stirrups 1022 are welded and fixed. .
进一步地,如图21所示,相邻两个预制楼板的侧面还固定U形加强钢筋1023,通长钢筋1021在横向穿过若干U形加强钢筋1023,再加上加强箍筋1024的配合,使第一后浇带102内部在横向上形成了三个相互交叉的拉接网格,大大增强了两个相邻预制楼板的连接效果。Further, as shown in FIG. 21, the sides of the adjacent two prefabricated slabs are also fixed with U-shaped reinforcing steel bars 1023, and the long-length reinforcing bars 1021 are transversely passed through a plurality of U-shaped reinforcing steel bars 1023, and the reinforcing stirrups 1024 are matched. The interior of the first post-casting strip 102 forms three intersecting pull-over grids in the lateral direction, which greatly enhances the connection effect of two adjacent prefabricated floors.
如图22所示,第一后浇带102中的套筒2可以交错排布。结合图23,与U形加强钢筋1023并列的方案还可以是在相邻两个预制楼板的侧面固定辅助连接筋19,辅助连接筋19伸出预制楼板的端部设置弯钩部191,通长钢筋1021穿过若干弯钩部191,并与弯钩部191绑扎连接。As shown in Figure 22, the sleeves 2 in the first post-cast strip 102 can be staggered. Referring to FIG. 23, the U-shaped reinforcing steel bar 1023 may be arranged in parallel with the auxiliary connecting rib 19 on the side of the adjacent two prefabricated slabs. The auxiliary connecting rib 19 extends from the end of the prefabricated slab to provide a hook portion 191. The reinforcing bar 1021 passes through a plurality of hook portions 191 and is ligated to the hook portion 191.
采用U形钢筋16方案时,通长钢筋1021需要从第一后浇带102的一头进行穿设,而采用辅助连接筋19的方案,当辅助连接筋19为只在底部单层设置时,通长钢筋1021可 以就位放入弯钩部191即可,安装更容易进行。When the U-shaped reinforcing bar 16 is adopted, the long-length reinforcing bar 1021 needs to be pierced from one end of the first post-casting strip 102, and the auxiliary connecting rib 19 is adopted. When the auxiliary connecting rib 19 is set only at the bottom single layer, The long reinforcing bar 1021 can be placed in the hook portion 191 in place, and the mounting is easier.
实施例三:Embodiment 3:
与实施例二不同之处在于,如图24所示,多块楼板单位安装时,除了在纵向设置第一后浇带102以外,在横向相邻的两块预制楼板之间设置第二后浇带103。该方案不仅没有拼接缝的产生,而且第一后浇带102和第二后浇带103组成了网格状的加强梁体,使得整个楼板结构的整体性更好。The difference from the second embodiment is that, as shown in FIG. 24, when a plurality of floor units are installed, in addition to the first rear ladle 102 disposed in the longitudinal direction, a second post-cast is disposed between the two adjacent prefabricated floors adjacent to each other. Belt 103. The solution not only does not have the formation of the seam, but the first backing strip 102 and the second backing strip 103 form a grid-like reinforcing beam body, so that the overall structure of the floor is better.
从楼板模块1横向的周面伸出的钢筋相互连接后,浇筑在第二后浇带103中,从而进一步加强了两块预制楼板的横向连接。The reinforcing bars extending from the lateral surface of the floor module 1 are connected to each other and then poured into the second post-casting strip 103, thereby further reinforcing the lateral connection of the two prefabricated floors.
如图24所示,横向伸出的钢筋端头也可以设置为扩大头110,并用套筒2连接。As shown in Fig. 24, the laterally extending reinforcing bar ends may also be provided as enlarged heads 110 and joined by a sleeve 2.
横向伸出的钢筋可以是钢筋网架14的横钢筋,也可以附加的加强钢筋。第二后浇带103中的钢筋设置可以参考第一后浇带102中进行。The laterally extending reinforcing bars may be transverse reinforcing bars of the reinforcing mesh frame 14, or additional reinforcing reinforcing bars. The reinforcing bar arrangement in the second post-casting strip 103 can be made with reference to the first post-casting strip 102.
如图25所示,在第一后浇带102和第二后浇带103的混凝土凝固后,还可以在其上下表面设置附加层结构17。例如,当预制楼板顶面设置耐磨层172时,可以在后浇带上部浇筑相同厚度的耐磨层172材料。然后对新浇筑的耐磨层172进行打磨,使整个耐磨层172表面形成整体,完成表面装饰层施工。As shown in Fig. 25, after the concrete of the first post-cast strip 102 and the second post-cast strip 103 is solidified, an additional layer structure 17 may be provided on the upper and lower surfaces thereof. For example, when the wear layer 172 is disposed on the top surface of the precast slab, the wear layer 172 material of the same thickness may be cast on the upper portion of the post-casting strip. Then, the newly poured wear layer 172 is ground to form a whole surface of the entire wear layer 172, and the surface decoration layer is completed.
由于预制楼板加工成装饰一体板之后,后期只需对后浇带部分进行装饰层的补充施工即可,工作量小,可以大大缩短整体建筑的施工工期。Since the prefabricated floor slab is processed into a decorative integrated board, it is only necessary to supplement the decorative layer on the post-casting part at a later stage, and the workload is small, which can greatly shorten the construction period of the whole building.
在第一后浇带102和第二后浇带103浇筑混凝土前,还可以进行预埋管线的安装,方便后期水、电、网线的穿设。Before the first post-casting strip 102 and the second post-casting strip 103 are poured into the concrete, the installation of the pre-buried pipeline can also be carried out to facilitate the installation of the water, electricity and network cables in the later stage.
实施例四:Embodiment 4:
在实施例一的基础上,一种预制楼板的连接结构,在第一后浇带102的底部设置有钢梁3或预制混凝土梁4。On the basis of the first embodiment, a joint structure of a prefabricated floor slab is provided with a steel beam 3 or a precast concrete beam 4 at the bottom of the first post-casting belt 102.
如图26所示,当底部为钢梁3时,例如是工字钢梁时,可以在套筒2上开设栓钉孔21,栓钉20穿过套筒2上的栓钉孔21后与钢梁3焊接。As shown in FIG. 26, when the bottom is a steel beam 3, such as an I-beam, a peg hole 21 can be formed in the sleeve 2, and the peg 20 passes through the peg hole 21 on the sleeve 2 and Steel beam 3 is welded.
如图27所示,当底部为预制混凝土梁4时,两块预制楼板搭接在预制混凝土梁4的顶部。如图28所示,预制混凝土梁4的顶面设置预埋的U形连接筋1025,U形连接筋1025伸入第一后浇带102中,从而使梁与楼板结合成整体,连接节点更加牢固。As shown in Fig. 27, when the bottom is a precast concrete beam 4, two precast slabs are lapped on top of the precast concrete beam 4. As shown in Fig. 28, the top surface of the precast concrete beam 4 is provided with a pre-embedded U-shaped connecting rib 1025, and the U-shaped connecting rib 1025 is inserted into the first post-casting strip 102, so that the beam and the floor panel are integrated into one body, and the connection node is further Firm.
实施例五:Embodiment 5:
与实施例四不同之处在于,如图29所示,第一后浇带102的底部设置有预制墙板71,第一后浇带102的宽度小于预制墙板71的厚度,从而实现两块预制楼板可以搭接在预制墙板71 顶面。The difference from the fourth embodiment is that, as shown in FIG. 29, the bottom of the first post-casting strip 102 is provided with a prefabricated wall panel 71, and the width of the first post-cast strip 102 is smaller than the thickness of the prefabricated wall panel 71, thereby realizing two pieces. The prefabricated floor slab can be attached to the top surface of the prefabricated wall panel 71.
如图30所示,第一后浇带102的宽度也可以小于预制墙板71的厚度,此种设置有几个好处:一是增加了第一后浇带102的宽度,方便了内部钢筋的安装,特别是套筒2的安装;二是如图31所示,当上层预制墙板71需要先安装,然后再浇筑第一后浇带102混凝土时,预制楼板的端头与上层预制墙板71之间可以留出混凝土的浇筑口。As shown in FIG. 30, the width of the first post-cast strip 102 may also be smaller than the thickness of the prefabricated wall panel 71. This arrangement has several advantages: First, the width of the first post-cast strip 102 is increased to facilitate the internal reinforcing bar. Installation, especially the installation of the sleeve 2; second, as shown in Fig. 31, when the upper prefabricated wall panel 71 needs to be installed first, and then the first post-casting belt 102 concrete is poured, the end of the prefabricated floor slab and the upper prefabricated wall panel A concrete pouring port can be left between the 71s.
由于一般预制墙板71的厚度为150、200mm,当两块预制楼板搭接在预制墙板71顶部时,第一后浇带102的宽度会更小,不方便内部钢筋和套筒2的安装。但是搭接如果只有30-50mm时,由于预制墙板71的该厚度范围是保护层,在较大压力下,容易被压坏。所以,为了方便预制楼板与预制墙板71的安装,如图32所示,楼板模块1的底面靠近周侧面处设置有预埋钢板181,预制墙板71靠近上端的侧面设置有预埋钢板181。安装时,将两块预埋钢板181焊接,可以更好地对预制楼板进行临时固定。这种固定方式,搭接长度只要有20mm以上即可满足受力要求,省去了对预制楼板其它的支撑设置,提高了施工效率。Since the thickness of the general prefabricated wall panel 71 is 150 and 200 mm, when the two prefabricated floor slabs are overlapped on the top of the prefabricated wall panel 71, the width of the first post-casting strip 102 is smaller, which is inconvenient for the installation of the inner reinforcing bar and the sleeve 2. . However, if the lap joint is only 30-50 mm, since the thickness range of the prefabricated wall panel 71 is a protective layer, it is easily crushed under a large pressure. Therefore, in order to facilitate the installation of the prefabricated floor slab and the prefabricated wall panel 71, as shown in FIG. 32, the bottom surface of the slab module 1 is provided with a pre-embedded steel plate 181 near the circumferential side surface, and the prefabricated wall panel 71 is provided with a pre-embedded steel plate 181 near the upper end side. . When installing, the two pre-embedded steel plates 181 are welded to better temporarily fix the prefabricated floor slab. This kind of fixing method can meet the force requirement as long as the lap length is more than 20mm, and the other support settings for the prefabricated floor slab are omitted, and the construction efficiency is improved.
进一步的,预埋钢板181可以换成预埋角铁182或是预埋螺栓套筒183。Further, the embedded steel plate 181 can be replaced with a pre-embedded angle iron 182 or a pre-embedded bolt sleeve 183.
如图33所示,楼板模块1的底面靠近周侧面处设置预埋螺栓套筒183,预制墙板71的靠近上端的侧面设置有预埋螺栓套筒183;然后将固定角铁5安装在预制楼板与预制墙板71连接形成的拐角处;固定螺栓51穿过固定角铁5后,拧入预埋螺栓套筒183后,将连接加强。As shown in FIG. 33, the bottom surface of the floor panel module 1 is provided with a pre-embedded bolt sleeve 183 near the side of the circumference, and the side of the prefabricated wall panel 71 near the upper end is provided with a pre-embedded bolt sleeve 183; then the fixed angle iron 5 is mounted on the prefabricated The corner between the floor and the prefabricated wall panel 71 is connected; after the fixing bolt 51 passes through the fixed angle iron 5, the screw bolt 183 is screwed into the pre-embedded bolt sleeve 183 to strengthen the connection.
如图34所示,预埋螺栓套筒183也可以安装在预制墙板71的上端面和预制楼板周侧面。这种设置,固定角铁5最终浇筑在了端头后浇带中,不需要拆卸,提高了施工效率。As shown in Fig. 34, the pre-embedded bolt sleeve 183 can also be mounted on the upper end surface of the prefabricated wall panel 71 and the peripheral side of the prefabricated floor panel. In this arrangement, the fixed angle iron 5 is finally poured in the end back pouring belt, and does not need to be disassembled, thereby improving the construction efficiency.
实施例六:Example 6:
一种预制楼板的施工方法,主要涉及采用多块预制楼板拼接形成楼板,以及楼板与墙体或者梁体的固定,主要包括如下步骤:A prefabricated floor slab construction method mainly involves the use of a plurality of prefabricated floor slabs to form a slab, and the fixing of the slab and the wall or the beam body, mainly comprising the following steps:
S1、预先在地面支撑立柱,立柱上方固定横梁,横梁可以是钢梁3或混凝土预制梁S1, support the column in advance on the ground, fix the beam above the column, the beam can be steel beam 3 or concrete precast beam
S2、将预制楼板吊装至横梁顶部,纵向相邻的两个预制楼板之间预留第一后浇带102的宽度;S2, the prefabricated floor slab is hoisted to the top of the beam, and the width of the first post-casting strip 102 is reserved between the two adjacent prefabricated slabs;
S3、横向相邻的两块预制楼板直接拼接;S3, two prefabricated floor slabs adjacent to each other are directly spliced;
S4、将相邻两块预制楼板的钢筋进行连接:S4. Connect the steel bars of two adjacent prefabricated floors:
套筒2连接:相邻两个预制楼板带有扩大头110的连接钢筋11插入套筒2中,两个扩大头110位于套筒2内部。具体地,可以是:将其中一个预制楼板的连接钢筋11插入套筒2的一个安装孔22中,使该连接钢筋11的扩大头110位于套筒2内部。之后,将另一块预制楼 板吊起,将该预制楼板的扩大头110插入套筒2的另一个安装孔22中,并使得该扩大头110位于套筒2中,实现相邻两个预制楼板的初步定位;The sleeve 2 is connected: two adjacent prefabricated slabs are connected to the sleeve 2 with the connecting bars 11 of the enlarged head 110, and the two enlarged heads 110 are located inside the sleeve 2. Specifically, it may be that the connecting reinforcing bar 11 of one of the prefabricated floor slabs is inserted into a mounting hole 22 of the sleeve 2 such that the enlarged head 110 of the connecting reinforcing bar 11 is located inside the sleeve 2. Thereafter, another prefabricated floor slab is lifted, the enlarged head 110 of the prefabricated floor slab is inserted into the other mounting hole 22 of the sleeve 2, and the enlarged head 110 is placed in the sleeve 2 to realize the adjacent two prefabricated slabs. Preliminary positioning;
S5、在第一后浇带102和第二后浇带103的下端面支撑底模;S5, supporting the bottom mold on the lower end faces of the first post-casting strip 102 and the second post-casting strip 103;
在第一后浇带102上方安装上层预制墙板71,并临时支撑固定后,将上层墙板与下层墙板伸出的钢筋进行连接,可以是套筒2连接。After the upper prefabricated wall panel 71 is installed above the first post-casting strip 102 and temporarily supported and fixed, the upper wall panel is connected with the reinforcing steel bar protruding from the lower wall panel, and the sleeve 2 may be connected.
S6、第一后浇带102和第二后浇带103中浇筑混凝土,混凝土同时也会从套筒2的两个安装孔22和灌浆孔进入套筒2中。Concrete is poured into S6, the first post-casting strip 102 and the second post-casting strip 103, and the concrete also enters the sleeve 2 from the two mounting holes 22 of the sleeve 2 and the grouting holes.
S7、待第一后浇带102和第二后浇带103中的混凝土凝固后,根据需求在第一后浇带102和第二后浇带103的上表面浇筑耐磨层172并打磨或者做饰面层,在第一后浇带102和第二后浇带103的下表面安装保温层173、防火层174和隔音层175。S7. After the concrete in the first post-casting strip 102 and the second post-casting strip 103 is solidified, the wear-resistant layer 172 is cast on the upper surface of the first post-cast strip 102 and the second post-cast strip 103 and sanded or made according to requirements. The finishing layer is provided with a heat insulating layer 173, a fireproof layer 174, and a sound insulating layer 175 on the lower surfaces of the first backing strip 102 and the second backing strip 103.
实施例七:一种预制楼板的施工方法,其与实施例六的区别在于步骤S1、S2和S3不同,步骤S1、S2和S3如下所示:Embodiment 7: A construction method of a prefabricated floor slab, which differs from the sixth embodiment in that steps S1, S2 and S3 are different, and steps S1, S2 and S3 are as follows:
S1、在地面安装预制墙板71;S1, installing a prefabricated wall panel 71 on the ground;
S2、将预制楼板吊装至预制墙板71顶部,当第一后浇带102宽度小于墙板厚度时,直接搭接;当宽度大于墙板厚度时,安装预制楼板底部安装支撑架进行支撑固定。S2, the prefabricated floor slab is hoisted to the top of the prefabricated wall panel 71. When the width of the first post-casting strip 102 is less than the thickness of the wallboard, the lap joint is directly lapped; when the width is greater than the thickness of the wallboard, the bottom of the prefabricated slab is installed to support and fix the support frame.
S3、在横向相邻两块预制楼板之间预留第二后浇带103的间隙。S3. Reserve a gap between the second post-casting strips 103 between the two adjacent prefabricated floors.
套筒结构及其连接方法介绍:Introduction of the sleeve structure and its connection method:
套筒2可以采用缩口式钢筋连接套筒和外伸入卡件式套筒。The sleeve 2 can be a shrink-type reinforcing bar connecting sleeve and an outer protruding card sleeve.
缩口式钢筋连接套筒:Shrinking steel connecting sleeve:
如图35所示,缩口式钢筋连接套筒包括筒体6和一体连接于筒体6两端的缩口61,筒体6上开设有若干个均匀分布的注浆孔62,便于水泥浆流入筒体6内部;结合图36,缩口61为圆口,缩口61内壁为圆锥面状,圆锥面较大的一端朝向筒体6的内部;结合图37,缩口式钢筋连接套筒的连接结构由连接钢筋11和筒体6组成,连接钢筋11一端预埋固定连接在预制板7内部,另一端露在预制板7外面且在远离预制板7的一端端部一体连接有扩大头110,扩大头110的外壁径向尺寸大于连接钢筋11的外壁径向尺寸且小于缩口61的内壁径向尺寸,扩大头110可从缩口61伸入筒体6内部。As shown in FIG. 35, the neck-type reinforcing steel connecting sleeve comprises a cylinder body 6 and a constriction 61 integrally connected to the two ends of the cylinder body 6. The cylinder body 6 is provided with a plurality of evenly distributed grouting holes 62 for facilitating the inflow of cement slurry. In conjunction with FIG. 36, the constriction 61 is a round mouth, the inner wall of the constriction 61 is a conical surface, and the larger end of the conical surface faces the inside of the cylinder 6; in conjunction with FIG. 37, the constricted rebar connection sleeve The connecting structure is composed of a connecting reinforcing bar 11 and a cylindrical body 6. One end of the connecting reinforcing bar 11 is pre-buried and fixedly connected inside the prefabricated plate 7, and the other end is exposed outside the prefabricated plate 7 and integrally connected with an expanding head 110 at an end portion away from the prefabricated plate 7. The radial dimension of the outer wall of the enlarged head 110 is larger than the radial dimension of the outer wall of the connecting rebar 11 and smaller than the radial dimension of the inner wall of the constriction 61, and the enlarged head 110 can protrude from the constriction 61 into the interior of the cylinder 6.
如图38所示,水泥浆从注浆孔62流入筒体6内部并且凝固形成混凝土之后,扩大头110可以被固定在筒体6内部,可以限制筒体6两端的连接钢筋11朝相互远离的方向运动拔出筒体6,从而对两端的预制板7(图38中连接钢筋11远离筒体6一端的矩形块状结构为预制板7的示意图)进行连接,提高两个预制板7之间的连接强度。扩大头110靠近连 接钢筋11的一端为圆台面状,扩大头110靠近预制板7的一端小于另一端;为便于叙述,缩口61的圆锥面定义为过渡圆锥面611,缩口61与筒体6端部之间通过过渡圆锥面611一体连接,在连接钢筋11受到拔出筒体6方向的作用力之后,圆台面挤混凝土,混凝土将挤压作用力(如图38中F箭头所指的方向为作用力方向的示意图)传递给过渡圆锥面611,过渡圆锥面611产生的反作用力对扩大头110具有沿径向的分力,沿径向压紧扩大头110,因此,过渡圆锥面611可以使筒体6和内部的混凝土承载更大的载荷,提高连接钢筋11以及扩大头110与筒体6之间的连接强度。As shown in FIG. 38, after the cement slurry flows from the grouting hole 62 into the inside of the cylindrical body 6 and solidifies to form concrete, the expanding head 110 can be fixed inside the cylindrical body 6, and the connecting reinforcing bars 11 at both ends of the cylindrical body 6 can be restricted from moving away from each other. The cylindrical body 6 is pulled out in the direction of movement, thereby connecting the prefabricated plates 7 at both ends (the schematic diagram of the rectangular block structure connecting the reinforcing bars 11 away from the end of the cylindrical body 6 to the prefabricated plate 7 in FIG. 38), and between the two prefabricated plates 7 is improved. Connection strength. One end of the enlarged head 110 near the connecting reinforcing bar 11 has a truncated cone shape, and one end of the enlarged head 110 near the prefabricated plate 7 is smaller than the other end; for convenience of description, the conical surface of the constricting opening 61 is defined as a transitional conical surface 611, a constricted portion 61 and a cylindrical body. 6 ends are integrally connected by a transitional conical surface 611. After the connecting rebar 11 is subjected to the force of pulling out the cylinder 6, the round table is pressed against the concrete, and the concrete will squeeze the force (as indicated by the arrow F in Fig. 38). The direction of the direction of the force direction is transmitted to the transitional conical surface 611. The reaction force generated by the transitional conical surface 611 has a radial component force to the expansion head 110, and the expansion head 110 is pressed in the radial direction. Therefore, the transitional conical surface 611 The cylinder 6 and the concrete inside can carry a larger load, and the strength of the connection between the connecting bar 11 and the enlarged head 110 and the barrel 6 can be improved.
与现有灌浆套筒相比,该套筒不需要单独的灌浆操作,而是在浇筑混凝土时,混凝土浆液进入筒体6即完成连接钢筋11的连接,操作更加方便而且不需要专门的灌浆材料,节约成本。此外,由于该方案是靠压力传递,相比灌浆套筒依靠灌浆料与钢筋之间的黏结咬合,连接更加可靠。Compared with the existing grouting sleeve, the sleeve does not need a separate grouting operation, but when the concrete is poured, the concrete slurry enters the cylinder 6 to complete the connection of the connecting steel bars 11, which is more convenient to operate and does not require special grouting material. ,save costs. In addition, since the solution is transmitted by pressure, the connection is more reliable than the grouting sleeve relies on the bond between the grout and the reinforcing bar.
缩口61的形状可以是圆形,也可以是方形、长条形和椭圆形等多种形状,扩大头110的截面与缩口61的形状相适配。为了使扩大头110的压力通过混凝土有效传递至筒体6上,缩口61的尺寸比扩大头110的尺寸大1~5mm即可,优选2~3mm。The shape of the constriction 61 may be a circular shape, or may be a plurality of shapes such as a square shape, an elongated shape, and an elliptical shape, and the cross section of the enlarged head 110 is adapted to the shape of the constricted portion 61. In order to allow the pressure of the expansion head 110 to be efficiently transmitted to the cylindrical body 6 through the concrete, the size of the constriction 61 may be larger than the size of the expansion head 110 by 1 to 5 mm, preferably 2 to 3 mm.
如图39和图40所示,筒体6具有分体结构,可以沿轴向拆分为两半。两半筒体6相互靠近的一端外侧表面均固定连接有连接板63,连接板63上均开设有通孔631,两半筒体6相互对接拼合后,连接板63上的通孔631可相互对齐,可通过将销或螺栓等插销件同时插入两个相互对齐的通孔631内,对两个连接板63进行销接,限制两半筒体6朝相互远离的方向相互分离。As shown in Figs. 39 and 40, the cylindrical body 6 has a split structure and can be split into two halves in the axial direction. A connecting plate 63 is fixedly connected to the outer surface of the two end portions of the two cylinders 6. The connecting plate 63 is respectively provided with a through hole 631. After the two half cylinders 6 are butt-joined together, the through holes 631 of the connecting plate 63 can be mutually connected. The two connecting plates 63 can be pinned by inserting a pin or a bolt or the like into the two mutually aligned through holes 631 to restrict the two half cylinders 6 from being separated from each other in a direction away from each other.
当两个预制板7之间的距离比较小时,预埋在预制板7内部的连接钢筋11相互靠近的一端的端面之间的距离也比较小,可以将筒体6拆分为两半,先将其中一半筒体6套入在其中一个连接钢筋11上,再将另一半筒体6套接在连接钢筋11上,最后在将两半筒体6沿连接钢筋11的轴向且朝相互靠近的方向滑动,使连接板63上的通孔631相互对齐,通过插销件插入通孔631使两半筒体6拼合在一起。When the distance between the two prefabricated panels 7 is relatively small, the distance between the end faces of the ends of the connecting reinforcing bars 11 which are embedded in the interior of the prefabricated plate 7 is relatively small, and the cylindrical body 6 can be split into two halves. One half of the cylinder 6 is placed on one of the connecting bars 11, and the other half 6 is sleeved on the connecting bar 11, and finally the two cylinders 6 are placed in the axial direction of the connecting bar 11 and close to each other. The direction of sliding causes the through holes 631 on the connecting plate 63 to be aligned with each other, and the two half cylinders 6 are joined together by the insertion of the pin members into the through holes 631.
如图41所示,当连接的是竖直状态的两根钢筋时,为了将套筒2在浇筑混凝土前能够更方便地临时固定在两根连接钢筋11的对接位置,不至于滑落。所以,筒体6内壁中部位置固接有阻止扩大头110贯穿套筒2的隔挡元件64。隔挡元件64可以是位于筒体6中间圆片板。进一步地,为了使水泥浆可以在筒体6内自由流动,隔挡元件64设置成中空的圆环状,圆环内径小于扩大头110的直径。或者,隔挡元件64也可以是沿筒体6的径向设置的一根杆件。As shown in Fig. 41, when the two reinforcing bars in the vertical state are connected, in order to more conveniently temporarily fix the sleeve 2 to the butting position of the two connecting bars 11 before pouring concrete, it is not slipped. Therefore, the central portion of the inner wall of the cylinder 6 is fixed with a baffle member 64 that prevents the enlarged head 110 from penetrating the sleeve 2. The baffle element 64 can be an intermediate wafer plate located in the barrel 6. Further, in order to allow the cement slurry to flow freely within the cylinder 6, the baffle member 64 is disposed in a hollow annular shape having an inner diameter smaller than the diameter of the enlarged head 110. Alternatively, the baffle element 64 may also be a rod disposed in the radial direction of the barrel 6.
外伸入卡件式套筒:Extend into the card sleeve:
如图42与图43所示,外伸入卡件式套筒包括筒体6、卡接块65、弹片66,筒体6的两端均开设有供卡接块65插接的卡接孔651,筒体6上开设有注浆孔62。弹片66一端与筒体6的外侧面相固定连接,弹片66的另一端与卡接块65位于筒体6外侧的一端相固定连接。As shown in FIG. 42 and FIG. 43, the outer sleeve member includes a cylinder body 6, a latching block 65, and a spring piece 66. Both ends of the cylinder body 6 are provided with a snap hole for inserting the card connector block 65. 651, the barrel 6 is provided with a grouting hole 62. One end of the elastic piece 66 is fixedly connected to the outer side surface of the cylindrical body 6, and the other end of the elastic piece 66 is fixedly connected to one end of the engaging block 65 located outside the cylindrical body 6.
连接钢筋11一端固定连接有扩大头110,扩大头110的径向尺寸大于连接钢筋11的径向尺寸,扩大头110可从筒体6的端口插入筒体6内部。插入过程中,扩大头110推动卡接块65朝远离筒体6中心轴线的方向运动时带动弹片66发生弹性变形,在扩大头110越过卡接块65之后,弹片66逐渐恢复形变插入筒体6复位,限制扩大头110拔出筒体6。One end of the connecting reinforcing bar 11 is fixedly coupled to the enlarged head 110. The radial dimension of the enlarged head 110 is larger than the radial dimension of the connecting reinforcing bar 11, and the enlarged head 110 can be inserted into the inside of the cylindrical body 6 from the port of the cylindrical body 6. During the insertion process, the expanding head 110 pushes the engaging block 65 to move away from the central axis of the cylindrical body 6 to elastically deform the elastic piece 66. After the expanding head 110 passes over the engaging block 65, the elastic piece 66 gradually recovers and deforms into the cylindrical body 6 The reset restricts the expansion head 110 from pulling out the barrel 6.
当筒体6周围的后浇带浇筑混凝土时,水泥浆可从筒体6的两端口和注浆孔62流入筒体6内部,水泥浆凝固之后形成固态混凝土,使连接钢筋11固定在筒体6内部,从而实现两根连接钢筋11的连接。When the post-casting belt around the cylinder 6 is poured into concrete, the cement slurry can flow from the two ports of the cylinder 6 and the grouting hole 62 into the inside of the cylinder body 6, and the cement slurry solidifies to form solid concrete, so that the connecting steel bar 11 is fixed in the cylinder body. 6 internal, thereby achieving the connection of the two connecting bars 11.
此外,需要指出的是,套筒可以采用本申请人于2018年4月8号提交的4个套筒相关的发明专利,申请号分别为201810306670.4、201810307419.X、201810307420.2和201810307967.2。In addition, it should be pointed out that the sleeve can adopt the four sleeve-related invention patents filed by the applicant on April 8, 2018, and the application numbers are 201810306670.4, 201810307419.X, 201810307420.2 and 201810307967.2, respectively.
本具体实施例仅仅是对本发明的解释,其并不是对本发明的限制,本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改,但只要在本发明的权利要求范围内都受到专利法的保护。The present invention is only an explanation of the present invention, and is not intended to limit the present invention. Those skilled in the art can make modifications without innovating the present embodiment as needed after reading the present specification, but as long as the present invention is in the right of the present invention. All requirements are protected by patent law.

Claims (43)

  1. 一种预制楼板,其特征在于:包括楼板模块(1),楼板模块(1)相对的两个周侧面上固定有连接钢筋(11),连接钢筋(11)伸出楼板模块(1)的端部固定扩大头(110),扩大头(110)的尺寸大于连接钢筋(11)的外径;设置有连接钢筋(11)的方向为纵向。A prefabricated floor slab, comprising: a floor slab module (1), wherein two opposite circumferential sides of the slab module (1) are fixed with connecting reinforcing bars (11), and the connecting reinforcing bars (11) extend beyond the end of the slab module (1) The portion is fixedly enlarged (110), the size of the enlarged head (110) is larger than the outer diameter of the connecting reinforcing bar (11), and the direction in which the connecting reinforcing bars (11) are disposed is longitudinal.
  2. 根据权利要求1所述的预制楼板,其特征在于:连接钢筋(11)部分预埋或者通长设置在楼板模块(1)内。The prefabricated floor slab according to claim 1, characterized in that the connecting reinforcing bars (11) are partially embedded or lengthwise arranged in the floor module (1).
  3. 根据权利要求1所述的预制楼板,其特征在于:楼板模块(1)内与连接钢筋(11)平行固定预应力钢筋(12)。The prefabricated floor slab according to claim 1, characterized in that the prestressed reinforcing bars (12) are fixed in parallel with the connecting reinforcing bars (11) in the floor slab module (1).
  4. 根据权利要求3所述的预制楼板,其特征在于:预应力钢筋(12)设置在预制楼板的靠近上表面和/或下表面的位置。The prefabricated floor slab according to claim 3, characterized in that the prestressed reinforcing bars (12) are arranged at a position close to the upper surface and/or the lower surface of the prefabricated floor slab.
  5. 根据权利要求3所述的预制楼板,其特征在于:预应力钢筋(12)端头设置为扩大头(110)。The prefabricated floor slab according to claim 3, characterized in that the end of the prestressed reinforcing bar (12) is arranged as an enlarged head (110).
  6. 根据权利要求1所述的预制楼板,其特征在于:楼板模块(1)内设置有横向钢筋(13)。The prefabricated floor slab according to claim 1, characterized in that a transverse reinforcing bar (13) is arranged in the floor module (1).
  7. 根据权利要求1所述的预制楼板,其特征在于:楼板模块(1)内设置有钢筋网架(14)。The prefabricated floor slab according to claim 1, characterized in that the slab module (1) is provided with a reinforcing mesh frame (14).
  8. 根据权利要求7所述的预制楼板,其特征在于:钢筋网架(14)包括上钢筋网(141)、与上钢筋网(141)平行的下钢筋网(142),上钢筋网(141)和下钢筋网(142)之间连接支撑钢筋网(143),支撑钢筋网(143)垂直固接在上钢筋网(141)和下钢筋网(142)之间。The prefabricated floor slab according to claim 7, wherein the reinforcing mesh frame (14) comprises an upper reinforcing mesh (141), a lower reinforcing mesh (142) parallel to the upper reinforcing mesh (141), and an upper reinforcing mesh (141). A support reinforcement mesh (143) is connected between the lower reinforcement mesh (142) and the support reinforcement mesh (143) is vertically fixed between the upper reinforcement mesh (141) and the lower reinforcement mesh (142).
  9. 根据权利要求8所述的预制楼板,其特征在于:所述支撑钢筋网(143)为多道相互平行设置的桁架,桁架的方向为纵向。The prefabricated floor slab according to claim 8, wherein the supporting reinforcing mesh (143) is a plurality of trusses arranged parallel to each other, and the truss is oriented in a longitudinal direction.
  10. 根据权利要求9所述的预制楼板,其特征在于:每道桁架为连续的三角结构的钢筋网片,顶部与上钢筋网(141)固接,底部与下钢筋网(142)固接。The prefabricated floor slab according to claim 9, wherein each truss is a continuous triangular-shaped reinforcing mesh, the top is fixed to the upper reinforcing mesh (141), and the bottom is fixed to the lower reinforcing mesh (142).
  11. 根据权利要求10所述的预制楼板,其特征在于:每道桁架连续的三角结构由中间一根多次弯折的钢筋和上下两根通长钢筋(1021)焊接而成。The prefabricated floor slab according to claim 10, wherein each of the truss continuous triangular structures is welded by a plurality of bent steel bars and two upper and lower long steel bars (1021).
  12. 根据权利要求10所述的预制楼板,其特征在于:一根钢筋弯折而成三角结构的上顶点与上钢筋网(141)的横钢筋固接;下顶点与下钢筋网(142)的横钢筋固接。The prefabricated floor slab according to claim 10, characterized in that: the upper apex of a steel bar bent into a triangular structure is fixed to the transverse reinforced bar of the upper reinforcing mesh (141); the traverse of the lower apex and the lower reinforcing mesh (142) The steel bars are fixed.
  13. 根据权利要求8所述的预制楼板,其特征在于:上钢筋网(141)和/或下钢筋网(142)的全部或部分钢筋伸出楼板模块(1)的周侧面。The prefabricated floor slab according to claim 8, characterized in that all or part of the reinforcing bars of the upper reinforcing mesh (141) and/or the lower reinforcing mesh (142) project beyond the circumferential side of the floor module (1).
  14. 根据权利要求13所述的预制楼板,其特征在于:上钢筋网(141)和/或下钢筋网 (142)伸出楼板模块(1)周侧面的钢筋端头设置为扩大头(110)。The prefabricated floor slab according to claim 13, characterized in that the upper reinforcing mesh (141) and/or the lower reinforcing mesh (142) extend beyond the reinforcing side of the circumferential side of the floor module (1) to form an enlarged head (110).
  15. 根据权利要求1所述的预制楼板,其特征在于:楼板模块(1)的周侧面预埋有竖直方向的U形钢筋(16),U形钢筋(16)的开口的一端埋入楼板模块(1)内。The prefabricated floor slab according to claim 1, characterized in that the circumferential side of the slab module (1) is pre-buried with a U-shaped steel bar (16) in a vertical direction, and one end of the opening of the U-shaped steel bar (16) is embedded in the floor module. (1) inside.
  16. 根据权利要求1所述的预制楼板,其特征在于:楼板模块(1)设置连接钢筋(11)的方向设置有多个通长的空心孔(15)。The prefabricated floor slab according to claim 1, characterized in that the slab module (1) is provided with a plurality of open-ended hollow holes (15) in the direction in which the reinforcing bars (11) are connected.
  17. 根据权利要求1所述的预制楼板,其特征在于:楼板模块(1)的上表面和下表面设置一体成型的附加层结构(17);上表面固定有装饰层(171)和/或耐磨层(172);楼板模块(1)的下表面固定有保温层(173)和/或防火层(174)和/或隔音层(175)。The prefabricated floor slab according to claim 1, characterized in that the upper surface and the lower surface of the slab module (1) are provided with an integrally formed additional layer structure (17); the upper surface is fixed with a decorative layer (171) and/or wear resistant The layer (172); the lower surface of the floor module (1) is fixed with an insulation layer (173) and/or a fire barrier layer (174) and/or a sound insulation layer (175).
  18. 根据权利要求17所述的预制楼板,其特征在于:楼板模块(1)的上表面和下表面与预制墙板(71)或横梁搭接处不设置附加层结构(17)。The prefabricated floor slab according to claim 17, characterized in that the upper surface and the lower surface of the slab module (1) are not provided with an additional layer structure (17) at the overlap with the prefabricated wall panel (71) or the cross member.
  19. 根据权利要求17所述的预制楼板,其特征在于:楼板模块(1)的附加层结构(17)中预埋管线。Prefabricated floor slab according to claim 17, characterized in that the additional layer structure (17) of the floor module (1) is pre-buried in the pipeline.
  20. 根据权利要求1所述的预制楼板,其特征在于:楼板模块(1)的周侧面靠近底面处或其底面靠近周侧面处设置有预埋钢板(181)或预埋角铁(182)或螺栓套筒(183)。The prefabricated floor slab according to claim 1, characterized in that the circumferential side surface of the floor slab module (1) is provided with a pre-buried steel plate (181) or a pre-embedded angle iron (182) or a bolt near the bottom surface or a bottom surface thereof near the circumferential side surface. Sleeve (183).
  21. 一种预制楼板的连接结构,其特征在于:包括权利要求1-20任一项所述的预制楼板,相邻的两个预制楼板之间预留第一后浇带(102),相邻两个预制楼板中相对的两个连接钢筋(11)采用套筒(2)相连,套筒(2)上开设与扩大头(110)端部外径适配的安装孔(22)。A prefabricated floor slab connection structure, comprising: the prefabricated floor slab according to any one of claims 1-20, wherein a first post-casting strip (102) is reserved between two adjacent prefabricated slabs, adjacent to two The two opposite connecting bars (11) of the prefabricated slabs are connected by a sleeve (2), and the sleeve (2) is provided with a mounting hole (22) adapted to the outer diameter of the end of the enlarged head (110).
  22. 根据权利要求21所述的预制楼板的连接结构,其特征在于:套筒(2)在第一后浇带(102)中错位排布。The joint structure of a prefabricated floor slab according to claim 21, characterized in that the sleeve (2) is arranged offset in the first post-cast strip (102).
  23. 根据权利要求21所述的预制楼板的连接结构,其特征在于:第一后浇带(102)中还设置多根通长钢筋(1021),和将多根通长钢筋(1021)包围的箍筋(1022)。The joint structure of the prefabricated floor slab according to claim 21, wherein the first post-casting strip (102) is further provided with a plurality of long-length reinforcing bars (1021) and a hoop surrounding the plurality of long-length reinforcing bars (1021). Tendon (1022).
  24. 根据权利要求22所述的预制楼板的连接结构,其特征在于:相邻两个预制楼板的侧面还固定辅助连接筋(19),辅助连接筋(19)伸出预制楼板的端部设置弯钩部(191),所述通长钢筋(1021)穿过若干弯钩部(191)。The joint structure of the prefabricated floor slab according to claim 22, wherein the side of the adjacent two prefabricated slabs further fixes the auxiliary connecting ribs (19), and the auxiliary connecting ribs (19) extend beyond the ends of the prefabricated slabs to set the hooks. In the portion (191), the long reinforcing bar (1021) passes through a plurality of hook portions (191).
  25. 根据权利要求21所述的预制楼板的连接结构,其特征在于:相邻两个预制楼板的侧面还固定U形加强钢筋(1023),所述通长钢筋(1021)穿过若干U形加强钢筋(1023)。The joint structure of the prefabricated floor slab according to claim 21, wherein the sides of the adjacent two prefabricated slabs are further fixed with U-shaped reinforcing bars (1023), and the long-length reinforcing bars (1021) pass through a plurality of U-shaped reinforcing bars. (1023).
  26. 根据权利要求21所述的预制楼板的连接结构,其特征在于:预制楼板顶面设置装饰层(171)或耐磨层(172),第一后浇带(102)顶部设置后浇装饰层(171)或耐磨层(172)。The joint structure of the prefabricated floor slab according to claim 21, wherein the top surface of the precast slab is provided with a decorative layer (171) or a wear layer (172), and the top of the first post-casting strip (102) is provided with a post-cast decorative layer ( 171) or wear layer (172).
  27. 根据权利要求21所述的预制楼板的连接结构,其特征在于:第一后浇带(102)内部设置预埋管线。The joint structure of the prefabricated floor slab according to claim 21, wherein the first post-casting strip (102) is internally provided with a pre-buried pipeline.
  28. 根据权利要求21所述的预制楼板的连接结构,其特征在于:相邻两个预制楼板在垂直于连接钢筋(11)的方向相互拼接。The joint structure of a prefabricated floor slab according to claim 21, wherein two adjacent prefabricated slabs are spliced to each other in a direction perpendicular to the connecting bars (11).
  29. 根据权利要求21所述的预制楼板的连接结构,其特征在于:相邻两个预制楼板在垂直于连接钢筋(11)的方向设置第二后浇带(103)。The joint structure of a prefabricated floor slab according to claim 21, characterized in that the adjacent two prefabricated slabs are provided with a second post-casting strip (103) in a direction perpendicular to the connecting reinforcing bars (11).
  30. 根据权利要求29所述的预制楼板的连接结构,其特征在于:相邻两个预制楼板在垂直于连接钢筋(11)的方向有伸出的钢筋,伸出的钢筋浇筑在第二后浇带(103)内。The joint structure of the prefabricated floor slab according to claim 29, wherein adjacent two prefabricated slabs have reinforcing steel bars extending in a direction perpendicular to the connecting reinforcing bars (11), and the extended steel bars are cast in the second post-casting strip. (103).
  31. 根据权利要求30所述的预制楼板的连接结构,其特征在于:伸出的钢筋设置有扩大头(110),分别从两块预制楼板伸出的钢筋用套筒(2)连接。The joint structure of a prefabricated floor slab according to claim 30, characterized in that the projecting steel bar is provided with an enlarged head (110), and the reinforcing bars respectively extending from the two prefabricated floor slabs are connected by a sleeve (2).
  32. 根据权利要求29所述的预制楼板的连接结构,其特征在于:预制楼板顶面设置装饰层(171)或耐磨层(172),第二后浇带(103)顶部设置后浇装饰层(171)或耐磨层(172)。The joint structure of the prefabricated floor slab according to claim 29, wherein the top surface of the precast slab is provided with a decorative layer (171) or a wear layer (172), and the top of the second post-casting strip (103) is provided with a post-welding decorative layer ( 171) or wear layer (172).
  33. 根据权利要求29所述的预制楼板的连接结构,其特征在于:第二后浇带(103)中设置预埋管线。The joint structure of the prefabricated floor slab according to claim 29, characterized in that the second post-casting strip (103) is provided with a pre-buried pipeline.
  34. 根据权利要求21所述的预制楼板的连接结构,其特征在于:第一后浇带(102)的底部设置有钢梁(3)或预制混凝土梁(4)。The joint structure of a prefabricated floor slab according to claim 21, characterized in that the bottom of the first post-casting strip (102) is provided with a steel beam (3) or a precast concrete beam (4).
  35. 根据权利要求34所述的预制楼板的连接结构,其特征在于:套筒(2)上开设有栓钉孔(21),栓钉(20)穿过套筒(2)上的栓钉孔(21)后与钢梁(3)焊接。The joint structure of the prefabricated floor slab according to claim 34, wherein the sleeve (2) is provided with a peg hole (21), and the peg (20) passes through the peg hole on the sleeve (2) ( 21) After welding with steel beam (3).
  36. 根据权利要求34所述的预制楼板的连接结构,其特征在于:预制混凝土梁(4)的顶面设置预埋的U形连接筋(1025),U形连接筋(1025)伸入第一后浇带(102)中。The joint structure of the prefabricated floor slab according to claim 34, characterized in that the top surface of the precast concrete beam (4) is provided with a pre-embedded U-shaped connecting rib (1025), and the U-shaped connecting rib (1025) is extended into the first Cast in the belt (102).
  37. 根据权利要求21所述的预制楼板的连接结构,其特征在于:第一后浇带(102)的底部设置有预制墙板(71)。The joint structure of the prefabricated floor slab according to claim 21, characterized in that the bottom of the first post-casting strip (102) is provided with a prefabricated wall panel (71).
  38. 根据权利要求37所述的预制楼板的连接结构,其特征在于:第一后浇带(102)的宽度大于或小于预制墙板(71)的厚度。The joint structure of a prefabricated floor slab according to claim 37, wherein the width of the first post-cast strip (102) is greater or smaller than the thickness of the prefabricated wall panel (71).
  39. 根据权利要求38所述的预制楼板的连接结构,其特征在于:预制墙板(71)的上下端面或其靠近上下端的侧面设置有预埋钢板(181)或预埋角铁(182);预制楼板的预埋钢板(181)/预埋角铁(182)与预制墙板(71)的预埋钢板(181)/预埋角铁(182)焊接。The joint structure of the prefabricated floor slab according to claim 38, wherein the upper and lower end faces of the prefabricated wall panel (71) or the side near the upper and lower ends are provided with a pre-buried steel plate (181) or a pre-embedded angle iron (182); The pre-buried steel plate (181)/pre-buried angle iron (182) of the slab is welded to the pre-embedded steel plate (181)/pre-buried angle iron (182) of the prefabricated wall panel (71).
  40. 根据权利要求38所述的预制楼板的连接结构,其特征在于:预制墙板(71)的上下端面或其靠近上下端的侧面设置有预埋螺栓套筒(183);还包括固定角铁(5),固定角铁 (5)安装在预制楼板与预制墙板(71)连接形成的拐角处;固定螺栓(51)穿过固定角铁(5)后,拧入预埋螺栓套筒(183)。The joint structure of the prefabricated floor slab according to claim 38, wherein the upper and lower end faces of the prefabricated wall panel (71) or the side near the upper and lower ends are provided with an embedded bolt sleeve (183); and the fixed angle iron (5) is further included. ), the fixed angle iron (5) is installed at the corner formed by the connection between the prefabricated floor and the prefabricated wall panel (71); after the fixing bolt (51) passes through the fixed angle iron (5), it is screwed into the pre-embedded bolt sleeve (183) .
  41. 一种预制楼板的连接结构的施工方法,其特征在于:包括如下步骤:A construction method for a joint structure of a prefabricated floor slab, comprising the following steps:
    S1、将如权利要求1-20任一项所述的预制楼板吊装至墙板或钢梁(3)或预制梁的上端面,并铺展形成楼板,沿纵向相邻的两个预制楼板之间形成第一后浇带(102);S1. The prefabricated floor slab according to any one of claims 1 to 20 is hoisted to the upper end surface of the wall panel or the steel beam (3) or the precast beam, and spread to form a slab, between the two prefabricated slabs adjacent to each other in the longitudinal direction. Forming a first post-casting strip (102);
    S2、相邻两个预制楼板带有扩大头(110)的连接钢筋(11)插入套筒(2)中,两个扩大头(110)位于套筒(2)内部;S2, two adjacent prefabricated slabs with connecting heads (110) of the expansion head (110) are inserted into the sleeve (2), and two enlarged heads (110) are located inside the sleeve (2);
    S3、在第一后浇带(102)中浇筑混凝土,使混凝土浆液流入套筒(2)内。S3. Pour concrete in the first post-casting strip (102) to allow the concrete slurry to flow into the sleeve (2).
  42. 根据权利要求41所述的预制楼板的连接结构的施工方法,其特征在于:The method for constructing a joint structure of a prefabricated floor slab according to claim 41, wherein:
    吊装时,横向相邻的两块预制楼板之间留有间隙,作为第二后浇带(103);将分属两块预制楼板横向周面伸出的钢筋连接;第二后浇带(103)安装底模后,浇筑混凝土。During hoisting, a gap is left between the two adjacent prefabricated slabs as a second post-casting strip (103); the steel bars extending from the lateral peripheral surfaces of the two prefabricated slabs are connected; the second post-casting strip (103) After pouring the bottom mold, pour concrete.
  43. 根据权利要求42所述的预制楼板的连接结构的施工方法,其特征在于:A method of constructing a joint structure of a prefabricated floor slab according to claim 42, wherein:
    第一后浇带(102)和第二后浇带(103)中的混凝土凝固后,在凝固混凝土的上表面和下表面分别做饰面处理。After the concrete in the first post-casting strip (102) and the second post-casting strip (103) is solidified, the upper surface and the lower surface of the solidified concrete are respectively subjected to a veneer treatment.
PCT/CN2019/084138 2018-04-25 2019-04-24 Prefabricated floor slab, connection structure thereof and construction method therefor WO2019206194A1 (en)

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