CN112832441A - 一种组合式预应力叠合楼板 - Google Patents

一种组合式预应力叠合楼板 Download PDF

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CN112832441A
CN112832441A CN202110206731.1A CN202110206731A CN112832441A CN 112832441 A CN112832441 A CN 112832441A CN 202110206731 A CN202110206731 A CN 202110206731A CN 112832441 A CN112832441 A CN 112832441A
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floor slab
composite
bottom plate
rib
compression ribs
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陈文祥
黎加纯
王荣豪
许文杰
韩磊
陈敬恒
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Elite Architectural Co Ltd
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Elite Architectural Co Ltd
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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
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • 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
    • E04B5/48Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04Building 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
    • E04C2/044Building 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04Building 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
    • E04C2/06Building 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/38Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels
    • E04C2/382Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels with a frame of concrete or other stone-like substance
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08Members specially adapted to be used in prestressed constructions

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

本发明公开了一种组合式预应力叠合楼板,包括底板和受压肋,所述受压肋呈长条状,数条受压肋平行设置在底板之上,所述受压肋沿长度方向间隔设置数组锚固钢筋,每组锚固钢筋的数量为两个,分别对称设置在受压肋的两侧,所述锚固钢筋一端嵌入至受压肋之中,另一端通过二次浇筑与底板固定连接。本发明在保证了抗拉强度和抗压强度的同时,减少建材用量,降低了成本。

Description

一种组合式预应力叠合楼板
技术领域
本发明涉及建筑领域,特别是涉及一种组合式预应力叠合楼板。
背景技术
目前,现有的叠合楼板绝大部分采用钢筋桁架叠合板,钢筋桁架叠合板存在明显的缺陷:1、混凝土底板最小厚度为60mm,自重大,造价高;2、抗裂能力低,运输及吊装过程中容易开裂或折断。
由此可见,上述现有的叠合楼板在结构与使用上,显然仍存在有不便与缺陷,而亟待加以进一步改进。如何能创设一种新的组合式预应力叠合楼板,实属当前重要研发课题之一。
发明内容
本发明要解决的技术问题是提供一种组合式预应力叠合楼板,使其既减少材料用量又增加了构件整体抗裂性能,降低生产和运输成本,从而克服现有的叠合楼板的不足。
为解决上述技术问题,本发明提供一种组合式预应力叠合楼板,包括底板和受压肋,所述受压肋呈长条状,数条受压肋平行设置在底板之上,所述受压肋沿长度方向间隔设置数组锚固钢筋,每组锚固钢筋的数量为两个,分别对称设置在受压肋的两侧,所述锚固钢筋一端嵌入至受压肋之中,另一端通过二次浇筑与底板固定连接。
作为本发明的一种改进,所述底板内设置有预应力钢丝。
进一步地,所述预应力钢丝的抗拉强度为1570MPa或1570MPa以上
进一步地,所述受压肋的侧壁沿长度方向等间距地间隔设置数个贯通的梯形孔,用于穿管。
进一步地,所述梯形孔的开孔尺寸以及间隔尺寸均模数化。
进一步地,所述锚固钢筋围合成矩形环状,在矩形环的中部进行90°弯折使矩形环上半周竖直而下半周水平,锚固钢筋上半周嵌入至受压肋之中,下半周嵌入至底板之中,实现受压肋与底板固定连接。
进一步地,所述锚固钢筋沿受压肋的纵向,布置间距为300mm。
进一步地,所述受压肋采用抗压强度等级为C60或C60以上的高强度混凝土预制而成。
进一步地,所述底板的厚度为30mm~35mm。
采用这样的设计后,本发明至少具有以下优点:
1、与传统的钢筋桁架叠合楼板相比,底板的厚度更小,构件混凝土用量减少29%,钢筋用量减少10%,节省建材的使用量,降低生产成本;
2、在现场施工时,传统的钢筋桁架叠合楼板的整体厚度为底板60mm+现场后浇70mm,本发明底板35mm+现场后浇85mm,楼板总厚度减少了10mm,可降低建筑物的地震力和基础造价;
3、构件重量减少29%,减少运输成本和碳排放,减少工地塔吊工作量;
4、刚度比常用的钢筋桁架叠合板增加了6.6%,抗裂性能远好于普通叠合板,运输过程和现场使用过程无裂缝产生。
附图说明
上述仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,以下结合附图与具体实施方式对本发明作进一步的详细说明。
图1是本发明提供的一种组合式预应力叠合楼板的横向截面剖面图。
图2是本发明提供的一种组合式预应力叠合楼板的纵向截面剖面图。
附图标记说明:1-底板;2-受压肋;3-锚固钢筋;4-高强预应力钢丝;5-梯形孔;6-电管。
具体实施方式
请参阅图1和图2,本发明提供一种组合式预应力叠合楼板,包括底板1和受压肋2,受压肋2先预制,然后切割成所需长度,再和底板1组合到一起。
所述底板1呈平面板状,底板1内部设有抗拉强度为1570MPa或1570MPa以上的高强预应力钢丝4,起到抗拉作用。
优选的,所述底板1的厚度为30mm~35mm。
底板1的上方设置有数条受压肋2,所述受压肋2呈长条状,数条受压肋2平行布置,每条受压肋2上沿长度方向等间距地间隔开有数个侧向贯通的梯形孔5,即为电管6的预留穿孔。每条受压肋2沿长度方向间隔设置数组锚固钢筋3,每组锚固钢筋3的数量为两个,分别对称设置在受压肋2的两侧。
优选的,所述受压肋2采用抗压强度等级为C60或C60以上的高强度混凝土预制而成,相比传统的叠合楼板受压强度更高。
优选的,所述梯形孔3的开孔尺寸以及间隔尺寸均模数化,更适用于与不同跨度的底板1进行组合,也便于后期施工中电管6的统筹布置。
所述锚固钢筋3是由钢筋围合而成的矩形环形体,在矩形环的中部90°弯折后使锚固钢筋3的上半周竖直而下半周水平,锚固钢筋3的上半周嵌入至受压肋2内部,锚固钢筋3的下半周通过二次浇筑的方式嵌入到底板1之中,以此来实现底板1与受压肋2之间的固定连接。
优选的,所述锚固钢筋3沿受压肋2的纵向,布置间距为300mm。
本发明提供的组合式预应力叠合楼板相比传统的叠合楼板,通过底板1内的高强预应力钢丝4和受压肋2保证了抗拉强度和抗压强度,同时减小了底板1的厚度,混凝土用量减少29%,钢筋用量减少10%,整体重量减小了29%,节省了建材,降低了成本。
以上所述,仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,本领域技术人员利用上述揭示的技术内容做出些许简单修改、等同变化或修饰,均落在本发明的保护范围内。

Claims (9)

1.一种组合式预应力叠合楼板,其特征在于,包括底板和受压肋,所述受压肋呈长条状,数条受压肋平行设置在底板之上,所述受压肋沿长度方向间隔设置数组锚固钢筋,每组锚固钢筋的数量为两个,分别对称设置在受压肋的两侧,所述锚固钢筋一端嵌入至受压肋之中,另一端通过二次浇筑与底板固定连接。
2.根据权利要求1所述的一种组合式预应力叠合楼板,其特征在于,所述底板内设置有预应力钢丝。
3.根据权利要求2所述的一种组合式预应力叠合楼板,其特征在于,所述预应力钢丝的抗拉强度为1570MPa或1570MPa以上。
4.根据权利要求1所述的一种组合式预应力叠合楼板,其特征在于,所述受压肋的侧壁沿长度方向等间距地间隔设置数个贯通的梯形孔,用于穿管。
5.根据权利要求4所述的一种组合式预应力叠合楼板,其特征在于,所述梯形孔的开孔尺寸以及间隔尺寸均模数化。
6.根据权利要求1所述的一种组合式预应力叠合楼板,其特征在于,所述锚固钢筋围合成矩形环状,在矩形环的中部进行90°弯折使矩形环上半周竖直而下半周水平,锚固钢筋上半周嵌入至受压肋之中,下半周嵌入至底板之中,实现受压肋与底板固定连接。
7.根据权利要求1或6所述的一种组合式预应力叠合楼板,其特征在于,所述锚固钢筋沿受压肋的纵向,布置间距为300mm。
8.根据权利要求1所述的一种组合式预应力叠合楼板,其特征在于,所述受压肋采用抗压强度等级为C60或C60以上的高强度混凝土预制而成。
9.根据权利要求1所述的一种组合式预应力叠合楼板,其特征在于,所述底板的厚度为30mm~35mm。
CN202110206731.1A 2021-02-24 2021-02-24 一种组合式预应力叠合楼板 Pending CN112832441A (zh)

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