WO2021073513A1 - 现浇筒体结构与装配式框架结构结合的施工方法 - Google Patents

现浇筒体结构与装配式框架结构结合的施工方法 Download PDF

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Publication number
WO2021073513A1
WO2021073513A1 PCT/CN2020/120723 CN2020120723W WO2021073513A1 WO 2021073513 A1 WO2021073513 A1 WO 2021073513A1 CN 2020120723 W CN2020120723 W CN 2020120723W WO 2021073513 A1 WO2021073513 A1 WO 2021073513A1
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construction
vertical
frame
frame beam
steel bars
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PCT/CN2020/120723
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English (en)
French (fr)
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熊靖
彭宝安
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荆门市佰思机械科技有限公司
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Publication of WO2021073513A1 publication Critical patent/WO2021073513A1/zh

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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
    • E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
    • 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
    • E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
    • 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
    • E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
    • E04B1/3505—Extraordinary methods of construction, e.g. lift-slab, jack-block characterised by the in situ moulding of large parts of a structure
    • 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
    • E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
    • E04B1/3544—Extraordinary methods of construction, e.g. lift-slab, jack-block characterised by the use of a central column to lift and temporarily or permanently support structural elements

Definitions

  • the invention is mainly used in the construction of middle and high-rise residential structures in the field of construction engineering.
  • a high-rise residential building of our company is planned to be a structural system combining cast-in-situ tubular structure and fabricated frame structure, and the elevator and staircase are designed as cast-in-situ tubular structures.
  • the structure is to improve the overall rigidity of the building and resist earthquake and wind loads.
  • the living room, bedroom, kitchen and bathroom and other rooms are designed as prefabricated frame structures. In this way, there are two types of complete cast-in-place and assembly. Different construction techniques, how to coordinate the two to ensure that the construction progress is accelerated? How to connect the fabricated frame structure and the cast-in-situ cylinder structure? This will be the problem we face.
  • the present invention solves the above problems.
  • the main construction method is: the cast-in-situ cylinder structure adopts the slip form construction technology to construct first, and the beam, column and plate construction of the assembled frame structure are interspersed during the construction of the cast-in-situ cylinder structure, and the assembly is assembled.
  • the beams, columns and slabs of the frame structure are hoisted and assembled on site.
  • the specific construction methods are as follows:
  • Step 1 After the construction of the building foundation is completed, first use the slipform construction technology to construct the cast-in-situ tube part of the elevator car and stairwell to the three-story floor elevation (18), and at the same time at the tube bolster (12). ) Reserve vertical through holes (10) and multiple horizontal holes (11); step two, in the construction process of step one, carry out the frame columns (8), frame beams, Frame beam B (9), frame beam A (7), hoisting and assembling work of floor slab, frame column (8), frame beam, frame beam B (9) and floor slab are assembled according to the existing technology. For the frame beam A (7) on the second floor, insert multiple U-shaped steel bars (14) of the frame beam A (7) into the corresponding horizontal holes (11) at the tube bolster (12).
  • the vertical steel bar dragon (13) is in the vertical through hole ( In the cavity of 10); step four, inject concrete into the cavity of the vertical through hole (10) and perform grouting construction, so that the cast-in-place concrete is filled with the vertical through hole (10) and multiple horizontal holes (11)
  • step four inject concrete into the cavity of the vertical through hole (10) and perform grouting construction, so that the cast-in-place concrete is filled with the vertical through hole (10) and multiple horizontal holes (11)
  • the three- and four-story cylindrical slipform construction is carried out, and the assembly-type component construction of the three to four floors is interspersed at the same time; the construction methods of other floors can be deduced by analogy.
  • the upper vertical reinforcement dragon (13) needs to be welded and fixed with multiple vertical reinforcements (15) of the lower vertical reinforcement dragon (13); the end of the frame beam A (7) combined with the cylinder is embedded There are multiple U-shaped steel bars (14).
  • the positions of multiple U-shaped steel bars (14) correspond to the positions of multiple horizontal holes (11).
  • the main reinforcement is fixed; the vertical reinforcement dragon (13) is composed of multiple evenly arranged vertical reinforcements (15) and multiple horizontal stirrups (16), and multiple horizontal stirrups (16) surround multiple evenly arranged vertical
  • the steel bar (15) is fixed with it, the vertical steel bar dragon (13) is used as the stress steel bar for connecting the multiple U-shaped steel bars (14) of the frame beam A (7), and the vertical steel bar dragon (13) also serves as the supporting frame
  • the main reinforcement of beam A (7) is fixed; the vertical reinforcement dragon (13) is composed of multiple evenly arranged vertical reinforcements (15) and multiple horizontal stirrups (16), and multiple horizontal stirrups (16) surround multiple evenly arranged vertical
  • the steel bar (15) is fixed with it, the vertical steel bar dragon (13) is used as the stress steel bar for connecting the multiple U-shaped steel bars (14) of the frame beam A (7), and the vertical steel bar dragon (13) also serves as the supporting frame
  • the main reinforcement of beam A (7) is fixed; the vertical reinforcement dragon (13) is composed of multiple evenly arranged vertical reinforcements (15) and multiple
  • the invention can greatly improve the construction progress of middle and high-rise residential structures, and the connection between the assembled frame structure and the cast-in-situ cylindrical structure is firm and reliable.
  • Figure 1 is a schematic diagram of the combination of a cast-in-situ cylinder structure and a fabricated frame structure.
  • FIG. 2 is a schematic diagram of the vertical through holes 10 and horizontal holes 11 reserved at the bolster 12 of the cylindrical body.
  • FIG. 3 is a schematic diagram of the embedded U-shaped steel bar 14 of the frame beam A7 before being inserted into the horizontal hole 11.
  • FIG. 4 is a schematic diagram of the vertical reinforcement dragon 13 inserted into the pre-embedded U-shaped reinforcement 14 of the frame beam A7.
  • Figure 5 is a large-scale drawing of the vertical steel bar dragon 13.
  • FIG. 6 is a schematic diagram of a plurality of horizontal holes 11 reserved at the cylinder bolster 12.
  • FIG. 7 is an elevation view of the U-shaped steel bars 14 embedded in the frame beam A7.
  • FIG. 8 is a plan view of the U-shaped steel bars 14 embedded in the frame beam A7.
  • the connection between the frame beam and the tube structure is divided into two situations.
  • One is the case where the frame beam and the tube body are joined at B6.
  • the frame beam B9 and the tube wall of the tube form a T shape.
  • the exposed main rib of frame beam B9 passes through the reserved hole of the cylinder wall, and then the exposed main rib of frame beam B9 is fixed to the cylinder wall of the cylinder with a nut.
  • the other is the case of A5 at the junction of the frame beam and the tube body. There are 6 points in total. See Figure 3.
  • the extension line of the right end of the frame beam A7 coincides with the tube wall.
  • Reinforcing steel bars need to be designed around the vertical through holes 10 of the tube beam 12 according to the structural requirements; the other parts of the tube body are distributed according to the conventional design; if the frame beam is combined with the tube body At A5, the frame beam A7 and the cylinder body are connected by conventional steel members, then the outer wall of the cylinder body at the junction of the frame beam and the cylinder body A5 needs to be embedded with steel plates, and the steel plates need to be welded and connected, and the right end of the frame beam A7 also needs to be embedded Connect the steel plates, and finally fix the connecting steel plates of the frame beam A7 with the connecting steel plates of the cylinder with bolts and nuts.
  • This design scheme will consume a lot of steel and the exposed steel components will affect the appearance.
  • the invention can be widely used in the connection of cast-in-place structures and fabricated structures in the field of construction engineering.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

本发明公开了现浇筒体结构与装配式结构结合的施工方法，主要用于建筑工程领域中、高层住宅结构施工，它施工速度快，同时保证了建筑物的整体刚度；其施工方法是：1、先用滑模施工工艺施工现浇筒体部分至三层楼面标高处；2、进行一层及二层的装配式框架结构的吊装及拼装工作；3、将竖向钢筋龙穿过一层及二层的框架梁A的多个U形钢筋，其底部放在筒体的基础顶面上；4、向竖向通孔的空腔内注入混凝土，使现浇混凝土充满竖向通孔及多个水平孔的空腔内，待混凝土达到一定强度后，再进行三层及四层的筒体滑模施工；其他楼层的施工方法以此类推；框架梁A与筒体结合的端头预埋有多个U形钢筋，多个U形钢筋的位置与多个水平孔的位置一一对应。

Description

现浇筒体结构与装配式框架结构结合的施工方法 技术领域
本发明主要用于建筑工程领域中、高层住宅结构施工使用。
背景技术
为了加快施工进度，同时不降低建筑物的整体刚度，我公司某高层住宅楼拟设计为现浇筒体结构与装配式框架结构结合的结构体系，将电梯间及楼梯间设计为现浇筒体结构，以提高建筑物的整体刚度，抵抗地震荷载及风荷载，为了加快施工进度，将客厅、卧室、厨卫等其他房间设计为装配式框架结构，这样就出现了现浇与装配两种完全不同的施工工艺，两者如何协调好才能保证加快施工进度？装配式框架结构与现浇筒体结构如何连接？这将是我们面临的问题。
技术问题
装配式框架结构与现浇筒体结构如何连接的问题。
技术解决方案
本发明解决了上述问题，其主要施工方法是：现浇筒体结构采用滑模施工工艺先行施工，在现浇筒体结构施工过程中穿插进行装配式框架结构的梁、柱、板施工，装配式框架结构的梁、柱、板进行现场吊装及拼装，具体施工方法如下：
步骤一、在建筑物基础工程施工完毕后，先用滑模施工工艺施工电梯间及楼梯间的现浇筒体部分至三层楼面标高(18)处，同时在筒体承梁处(12)预留竖向通孔(10)及多个水平孔(11)；步骤二、在步骤一的施工过程中进行一层及二层的装配式框架结构的框架柱(8)、框架梁、框架梁B(9)、框架梁A(7)、楼板的吊装及拼装工作,框架柱(8)、框架梁、框架梁B(9)及楼板按现有技术进行拼装，在拼装一层及二层的框架梁A(7)时，将框架梁A(7)的多个U形钢筋(14)分别***筒体承梁处(12)对应的水平孔(11)内，同时多个U形钢筋(14)进入竖向通孔(10)的空腔内，此时框架梁A(7)与筒体结合的端部需做临时支撑；步骤三、将竖向钢筋龙(13)穿过一层及二层的框架梁A(7)的多个U形钢筋(14)，其底部放在筒体的基础顶面上，此时竖向钢筋龙(13)处于竖向通孔(10)的空腔内；步骤四、向竖向通孔(10)的空腔内注入混凝土并进行压浆施工，使现浇混凝土充满竖向通孔(10)及多个水平孔(11)的空腔内，待混凝土达到一定强度后，再进行三层及四层的筒体滑模施工，同时穿插进行三层至四层的装配式构件施工；其他楼层的施工方法以此类推，在施工其他楼层时，上层竖向钢筋龙(13)需与下层竖向钢筋龙(13)的多个竖向钢筋(15)焊接固定；框架梁A(7)与筒体结合的端头预埋有多个U形钢筋(14)，多个U形钢筋(14)的位置与多个水平孔(11)的位置一一 对应，U形钢筋(14)与框架梁A(7)内的受力主筋固定；竖向钢筋龙(13)由多根均匀布置的竖向钢筋(15)、多根水平箍筋(16)组成，多根水平箍筋(16)环绕多根均匀布置的竖向钢筋(15)并与之固定，竖向钢筋龙(13)作为连接框架梁A(7)的多个U形钢筋(14)的受力钢筋，竖向钢筋龙(13)同时也作为支撑框架梁A(7)的受力主筋。
有益效果
本发明可以大幅度提高中、高层住宅结构施工的施工进度，装配式框架结构与现浇筒体结构的连接处连接牢固可靠。
附图说明
1-电梯井道A、2-电梯井道B、3-楼梯间、4-电梯前室、5-框架梁与筒体结合处A、6-框架梁与筒体结合处B、7-框架梁A、8-框架柱、9-框架梁B、10-竖向通孔、11-水平孔、12-筒体承梁处、13-竖向钢筋龙、14-U形钢筋、15－竖向钢筋、16－水平箍筋、17－二层楼面标高、18－三层楼面标高。
图1是现浇筒体结构与装配式框架结构结合的示意图。
图2是筒体承梁处12预留竖向通孔10及水平孔11的示意图。
图3是框架梁A7的预埋U形钢筋14***水平孔11前 的示意图。
图4是竖向钢筋龙13***框架梁A7的预埋U形钢筋14后的示意图。
图5是竖向钢筋龙13的大样图。
图6是多个水平孔11预留在筒体承梁处12的示意图。
图7是预埋在框架梁A7的U形钢筋14的立面图。
图8是预埋在框架梁A7的U形钢筋14的俯视图。
本发明的最佳实施方式
参见图1，框架梁与筒体结构的连接分为两种情况，一种是框架梁与筒体结合处B6的情况，框架梁B9与筒体的筒壁成T字形，在这种情况下，只要在筒体的筒壁预留孔洞，框架梁B9外露的受力主筋穿过筒壁的预留孔洞，然后用螺母将框架梁B9外露的受力主筋与筒体的筒壁固定就可以了；另一种是框架梁与筒体结合处A5的情况，共有6处，参见图3，框架梁A7右端的延长线与筒体墙体重合，如果用常规的钢筋预留锚固的方法施工，框架梁A7右端预留的受力主筋很难与筒体钢筋焊接固定，因为筒体先采用滑膜先施工，要露出与框架梁A7对接的筒体钢筋是不现实的；图1中边框填黑的部分是电梯井道A1、电梯井道B2、电梯前室4、楼梯间3，这些房间就是现浇的筒体部分；参见图4，竖向通孔10灌浆且混凝土达到强度后，竖向钢筋龙13、框架梁A7 右端的多根U形钢筋14及回灌的混凝***同工作抵抗框架梁A7传来的端部弯矩荷载，同时竖向钢筋龙13及回灌的混凝***同抵抗框架梁A7传来竖向压应力，在筒体承梁处12的竖向通孔10的四周需按构造要求设计加强钢筋；筒体的其它部分配筋按常规设计；如果在框架梁与筒体结合处A5处，框架梁A7与筒体用常规的钢构件连接，那么框架梁与筒体结合处A5的筒体外壁需预埋钢板，还需焊接连接钢板，框架梁A7的右端也需预埋连接钢板，最后用螺栓螺母将框架梁A7的连接钢板与筒体的连接钢板固定，这一设计方案将耗费大量钢材且外露的钢构件影响美观。
本发明的实施方式
最佳实施方式已经详细说明了本发明的实施方式，这里不再详述。
工业实用性
本发明可以广泛用于建筑工程领域现浇结构与装配式结构的连接。

Claims (1)

  1. 现浇筒体结构与装配式结构结合的施工方法，其特征是：现浇筒体结构采用滑模施工工艺先行施工，在现浇筒体结构施工过程中穿插进行装配式框架结构的梁、柱、板施工，装配式框架结构的梁、柱、板进行现场吊装及拼装，具体施工方法如下：步骤一、在建筑物基础工程施工完毕后，先用滑模施工工艺施工电梯间及楼梯间的现浇筒体部分至三层楼面标高(18)处，同时在筒体承梁处(12)预留竖向通孔(10)及多个水平孔(11)；步骤二、在步骤一的施工过程中进行一层及二层的装配式框架结构的框架柱(8)、框架梁、框架梁B(9)、框架梁A(7)、楼板的吊装及拼装工作,框架柱(8)、框架梁、框架梁B(9)及楼板按现有技术进行拼装，在拼装一层及二层的框架梁A(7)时，将框架梁A(7)的多个U形钢筋(14)分别***筒体承梁处(12)对应的水平孔(11)内，同时多个U形钢筋(14)进入竖向通孔(10)的空腔内，此时框架梁A(7)与筒体结合的端部需做临时支撑；步骤三、将竖向钢筋龙(13)穿过一层及二层的框架梁A(7)的多个U形钢筋(14)，其底部放在筒体的基础顶面上，此时竖向钢筋龙(13)处于竖向通孔(10)的空腔内；步骤四、向竖向通孔(10)的空腔内注入混凝土并进行压浆施工，使现浇混凝土充满竖向通孔(10)及多个水平孔(11)的空腔内，待混凝土达到一定强度后，再进行三层及四层的筒体滑模施工， 同时穿插进行三层至四层的装配式构件施工；其他楼层的施工方法以此类推，在施工其他楼层时，上层竖向钢筋龙(13)需与下层竖向钢筋龙(13)的多个竖向钢筋(15)焊接固定；框架梁A(7)与筒体结合的端头预埋有多个U形钢筋(14)，多个U形钢筋(14)的位置与多个水平孔(11)的位置一一对应，U形钢筋(14)与框架梁A(7)内的受力主筋固定；竖向钢筋龙(13)由多根均匀布置的竖向钢筋(15)、多根水平箍筋(16)组成，多根水平箍筋(16)环绕多根均匀布置的竖向钢筋(15)并与之固定，竖向钢筋龙(13)作为连接框架梁A(7)的多个U形钢筋(14)的受力钢筋，竖向钢筋龙(13)同时也作为支撑框架梁A(7)的受力主筋。
PCT/CN2020/120723 2019-10-14 2020-10-14 现浇筒体结构与装配式框架结构结合的施工方法 WO2021073513A1 (zh)

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