WO2022161084A1 - 一种装配式混凝土梁柱节点及其施工方法 - Google Patents

一种装配式混凝土梁柱节点及其施工方法 Download PDF

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WO2022161084A1
WO2022161084A1 PCT/CN2021/142344 CN2021142344W WO2022161084A1 WO 2022161084 A1 WO2022161084 A1 WO 2022161084A1 CN 2021142344 W CN2021142344 W CN 2021142344W WO 2022161084 A1 WO2022161084 A1 WO 2022161084A1
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column
prefabricated
plate
concrete beam
concrete
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English (en)
French (fr)
Inventor
陈云
张琦俊
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Hainan University
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Hainan University
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21—Connections specially adapted therefor
    • E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional [3D] extent, e.g. lattice girders
    • E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
    • E04C5/0618—Closed cages with spiral- or coil-shaped stirrup rod

Definitions

  • the invention relates to the technical field of construction, and more particularly, to a construction method for a prefabricated concrete beam-column joint.
  • the present invention also relates to a prefabricated concrete beam-column joint using the above-mentioned prefabricated concrete beam-column joint construction method.
  • nodes In order to ensure the overall mechanical performance of the prefabricated building, it is necessary to connect the components through nodes so that they can be jointly stressed under the load. Due to the complex stress mechanism of the building structure, the nodes are often not in a single stress state, and the nodes need to have sufficient strength and stiffness.
  • Existing fabricated concrete components mainly include dry connection and wet connection.
  • the current dry construction process is complex, and the connection quality is easily affected by materials and operation techniques; wet connection is post-cast concrete, which is difficult to operate on site, and because concrete pouring requires the use of formwork, the construction process is complex, the operation is cumbersome, and the construction requirements high, seriously affecting the construction progress.
  • the purpose of the present invention is to provide a construction method for a prefabricated concrete beam-column joint, which uses a hoop plate to connect the upper column of the prefabricated column and the lower column of the prefabricated column, and connects the prefabricated column and the prefabricated column through the pick plate welded on the hoop plate.
  • Concrete beams improve construction efficiency while ensuring the structural strength of beam-column joints.
  • the present invention also provides a prefabricated concrete column using the above-mentioned construction method for a fabricated concrete beam-column joint.
  • the present invention provides the following technical solutions:
  • a construction method for a prefabricated concrete beam-column joint comprising:
  • Circumferential reinforcement plates are welded on the inner side of the stirrup plate, longitudinal bars and stirrups for bundling the longitudinal bars are arranged, and the upper column and the lower column of the prefabricated column are cast with the support formwork;
  • Concrete is poured in the formwork outside the pick plate.
  • the formwork-casting concrete outside the pick-up plate includes:
  • the concrete beams are cast with formwork.
  • studs are provided on the outer side of the hoop plate of the upper column of the prefabricated column and the outer side of the hoop plate of the lower column of the prefabricated column.
  • the formwork pouring on the outside of the pick plate includes:
  • the formwork is poured into concrete.
  • the longitudinal ribs of the prefabricated beam are arranged protruding from the end face of the prefabricated beam.
  • dark corbels are welded on the outer side of the hoop plate before the lap joint and the longitudinal reinforcement of the pick plate and the concrete beam.
  • pegs are provided on the outer side of the dark corbel.
  • the pick plate includes at least one horizontal steel plate, I-beam or T-beam.
  • the pick plate and the concrete column are densely arranged near the stirrups of the pick plate.
  • a prefabricated concrete beam-column joint includes a prefabricated column upper column, a prefabricated column lower column and a concrete beam, the lower end of the prefabricated column upper column and the upper end of the prefabricated column lower column are provided with hoop plates, and the prefabricated column is provided with a hoop plate.
  • the hoop plate of the upper column is welded and connected to the hoop plate of the lower column of the prefabricated column;
  • a pick plate is provided on the outer side of the hoop plate, and the pick plate is connected with the longitudinal bars of the concrete beam.
  • the prefabricated upper column and the prefabricated lower column of the prefabricated column can be pre-produced in the factory without on-site pouring, which saves the casting process of the prefabricated column formwork and improves the performance of the prefabricated column.
  • the construction efficiency reduces the construction cost; one end of the pick plate is connected with the longitudinal reinforcement of the concrete beam, and the other end is connected with the hoop plate of the prefabricated column, which improves the connection strength of the prefabricated column and the concrete beam at the beam-column joint.
  • connection method of the hoop plate is simple and convenient for construction, which greatly simplifies the construction process; concrete filling is carried out after the pick plate is connected with the longitudinal reinforcement, which further enhances the connection strength and rigidity at the beam-column joint and improves the structural reliability.
  • the method of pouring and the amount of concrete poured each time is small, which simplifies the construction process and reduces the construction difficulty.
  • the construction method of the prefabricated concrete beam-column joint provided by the present invention ensures the structural strength and rigidity of the beam-column joint, and the construction is convenient and the construction cost is low.
  • the present invention also provides a prefabricated concrete beam-column joint using the above-mentioned prefabricated concrete beam-column joint construction method.
  • Fig. 1 is the structural schematic diagram of the specific embodiment 1 of the prefabricated concrete beam-column joint provided by the present invention
  • Fig. 2 is the structural schematic diagram of the specific embodiment 2 of the prefabricated concrete beam-column joint provided by the present invention
  • FIG. 3 is a schematic structural diagram of a specific embodiment 3 of the fabricated concrete beam-column joint provided by the present invention.
  • 1 is the prefabricated column
  • 11 is the upper column of the prefabricated column
  • 12 is the lower column of the prefabricated column
  • 13 is the hoop plate
  • 14 is the hoop reinforcement plate
  • 2 is the concrete beam
  • 21 is the cast-in-place concrete
  • 3 is the longitudinal reinforcement
  • 4 is the pick Plate
  • 5 is dark corbel
  • 6 is peg.
  • the core of the present invention is to provide a construction method for prefabricated concrete beam-column joints, which utilizes the hoop plate to connect the upper column of the prefabricated column and the lower column of the prefabricated column, and connects the prefabricated column and the concrete beam through the pick plate welded on the hoop plate.
  • the construction efficiency is improved while ensuring the structural strength of the beam-column joint.
  • the present invention also provides a prefabricated concrete column applying the above-mentioned construction method of the prefabricated concrete beam-column joint.
  • FIG. 1 is a schematic structural diagram of a specific embodiment 1 of a prefabricated concrete beam-column joint provided by the present invention
  • FIG. 2 is a specific embodiment 2 of the prefabricated concrete beam-column joint provided by the present invention
  • 3 is a schematic structural diagram of a specific embodiment 3 of the prefabricated concrete beam-column joint provided by the present invention.
  • the prefabricated column 1 in this application document is a structural column formed after the prefabricated column upper column 11 and the prefabricated column lower column 12 are assembled and connected.
  • the prefabricated concrete beam-column joint construction method provided by the present invention includes:
  • Step S1 welding the circumferential reinforcing plate 14 on the inner side of the hoop plate 13, arranging the longitudinal bars 3 and the stirrups for tying the longitudinal bars 3, and casting the upper column 11 of the prefabricated column and the lower column 12 of the prefabricated column;
  • Step S2 hoisting the upper column 11 of the prefabricated column to just above the lower column 12 of the prefabricated column, and welding and connecting the hoop plate 13 of the upper column 11 of the prefabricated column and the hoop plate 13 of the lower column 12 of the prefabricated column;
  • Step S3 welding the pick plate 4 on the outer side of the hoop plate 13 of the prefabricated column upper column 11 and the outer side of the hoop plate 13 of the prefabricated column lower column 12;
  • Step S4 lap and connect the pick plate 4 and the longitudinal reinforcement 3 of the concrete beam 2;
  • Step S5 pouring concrete on the outside of the pick plate 4 by supporting the formwork.
  • step S1 is the pouring production process of the prefabricated column upper column 11 and the prefabricated column lower column 12
  • step S2 is the assembly connection process of the prefabricated column 1
  • steps S3-S5 are the assembly connection process of the prefabricated column 1 and the concrete beam 2.
  • step S1 the longitudinal bars 3 and the stirrups binding the longitudinal bars 3 constitute the steel skeleton of the prefabricated column 1 .
  • the design requirements of are determined with reference to the prior art, and are not repeated here.
  • the hoop plate 13 is used to connect the upper column 11 of the prefabricated column and the lower column 12 of the prefabricated column.
  • the hoop plate 13 is arranged around the outer circumference of the prefabricated column 1;
  • the sum of the lengths of the hoop plate 13 of the lower column 12 is greater than or equal to the height of the concrete beam 2; in order to strengthen the connection strength of the hoop plate 13 and the prefabricated column 1, the inner side of the hoop plate 13 can be provided with several studs 6 , preferably, the pegs 6 are evenly distributed along the axial direction of the prefabricated column 1 .
  • several vertical stiffening ribs can be welded in the hoop plate 13 .
  • the hoop reinforcement plate 14 is circumferentially welded in the hoop plate 13, which provides the support form boundary of the prefabricated column 1, and also enhances the connection strength between the hoop plate 13 and the concrete.
  • the hoop reinforcement plate 14 can also be replaced with a structure having similar functions to the anchor bars and the like.
  • the number of the hoop reinforcing plate 14 may be one or a plurality of;
  • the upper column 11 of the prefabricated column and the lower column 12 of the prefabricated column are made of ordinary concrete or high-strength concrete.
  • step S2 is that when the gap between the upper column 11 of the prefabricated column and the lower column 12 of the prefabricated column is large, the circumferential reinforcing plate 14 at the lower end face of the upper column 11 of the prefabricated column and the lower column of the prefabricated column can be Concrete filling is poured between the annular reinforcing plates 14 at the upper end face of 12 .
  • a lined steel pipe can be provided between the lower end surface of the prefabricated column upper column 11 and the upper end surface of the prefabricated column lower column 12, and the two ends of the inner lined steel pipe are respectively connected with the circumferential reinforcement plate of the prefabricated column upper column 11. 14.
  • the circumferential reinforcing plate 14 of the lower column 12 of the prefabricated column is welded and connected.
  • the arrangement of the lined steel pipe is conducive to the hoisting and alignment of the upper column 11 of the prefabricated column and the lower column 12 of the prefabricated column, and on the other hand, it enhances the shear strength of the connection of the prefabricated column 1 .
  • step S3 in order to enhance the structural strength of the beam-column joint, the concrete beam 2 needs to be connected with the prefabricated upper column 11 and the prefabricated lower column 12 at the same time, so the hoop plate 13 of the prefabricated upper column 11 and the prefabricated column
  • the hoops 13 of the lower column 12 are all provided with pick plates 4 connected with the longitudinal bars 3 of the concrete beam 2 .
  • the pick plate 4 may include at least one horizontal steel plate, I-beam or T-shaped steel, and the specific number of the pick plate 4 is related to the number of rows of the longitudinal bars 3 of the concrete beam 2 and the form of the pick plate 4, which will not be repeated here.
  • the pick plate 4 is set as two horizontal steel plates parallel to each other, and the two horizontal steel plates are respectively connected with the hoop plate 13 of the upper column 11 of the prefabricated column and the hoop plate 13 of the lower column 12 of the prefabricated column.
  • the two horizontal steel plates are respectively overlapped with the longitudinal bars 3 at the upper flange of the concrete beam 2 and the longitudinal bars 3 at the lower flange.
  • the pick plate 4 is set as I-beam, which is easy to obtain at the construction site and has a low cost.
  • the upper flange plate of the I-beam is overlapped with the longitudinal bars 3 on the upper side of the concrete beam 2
  • the lower flange plate is overlapped with the longitudinal bars 3 on the lower side of the concrete beam 2 .
  • step S4 the pick plate 4 is overlapped with the longitudinal bars 3 of the concrete beam 2, that is, the pick plate 4 and the longitudinal bars 3 of the concrete beam 2 have overlapping parts, and the specific length of the overlapping part of the two refers to the existing specifications
  • the pick plate 4 and the longitudinal bars 3 of the concrete beam 2 can be directly welded and connected, and can be fixed by tying steel bars, or can be connected by grouting sleeves or threaded steel bar sleeves.
  • the longitudinal ribs 3 of the prefabricated beam are arranged to protrude from the end face of the prefabricated beam, that is, the longitudinal ribs at both ends of the prefabricated beam extend outward, so as to facilitate the welding connection between the longitudinal ribs 3 and the pick plate 4 .
  • step S5 is that after the pick plate 4 is connected with the longitudinal bars 3 of the concrete beam 2, in order to further enhance the connection strength of the prefabricated column 1 and the concrete beam 2 and protect the longitudinal bars 3, the outer support form of the pick plate 4 is poured. concrete.
  • the stirrups at the ends of the pick plate 4 and the concrete beam 2 close to the pick plate 3 are densely arranged.
  • the outer formwork of the pick plate 4 is poured with concrete, including:
  • Step S51 using stirrups to bind the longitudinal bars 3 of the concrete beam 2;
  • Step S52 between the hoop plates 13 of the two prefabricated columns 1 , the concrete beams 2 are poured by supporting the formwork.
  • the two ends of the longitudinal bars 3 of the concrete beam 2 are respectively connected with the pick plates 4 on the stirrups 13 of the two prefabricated columns 1, and the stirrups are set to bind and fix the longitudinal bars 3 according to the design requirements of the concrete beam 2; After the stirrups are set, the concrete beam 2 is poured according to the design size of the concrete beam 2 to support the formwork.
  • bolts 6 may be provided on the outer side of the hoop plate 13 of the prefabricated column upper column 11 and the outer side of the hoop plate 13 of the prefabricated column lower column 12.
  • the studs 6 are evenly distributed along the height direction of the concrete beam 2 .
  • the concrete beam 2 is a prefabricated beam
  • concrete is poured in the outer formwork of the pick plate 4, including: between the end face of the concrete beam 2 and the hoop plate 13, the formwork is poured concrete, and the prefabricated column is reinforced. 1.
  • the connection strength between 1 and prefabricated beams improves the structural reliability of beam-column joints.
  • the pouring amount of the cast-in-place concrete 21 is determined by factors such as the height of the concrete beam 2 and the length of the longitudinal reinforcement 3 of the concrete beam 2 protruding from the end face of the concrete beam 2 .
  • the prefabricated upper column 11 and the prefabricated lower column 12 of the prefabricated column 1 can be pre-produced in the factory without on-site pouring, which saves the casting process of the prefabricated column 1, improves the construction efficiency and reduces the construction cost.
  • One end of the pick plate 4 is connected with the longitudinal reinforcement 3 of the concrete beam 2, and one end is connected with the hoop plate 13 of the prefabricated column 1, which improves the connection strength of the prefabricated column 1 and the concrete beam 2 at the beam-column joint.
  • the connection method of the hoop plate 13 is simple, the construction fault tolerance is strong, the construction is convenient, and the construction process is greatly simplified.
  • the construction method of the prefabricated concrete beam-column joint provided in this embodiment ensures the structural strength of the beam-column joint, and the construction is convenient and the construction cost is low.
  • the dark corbel 5 may be welded on the outer side of the hoop plate 13 .
  • the dark corbel 5 is used to disperse the force at the beam-column joint to enhance the structural strength and rigidity of the beam-column joint. Please refer to FIG. 1 , the dark corbel 5 is arranged between the two pick plates 4 .
  • the number of dark corbels 5 can be one piece. As shown in FIG. 1 , the dark corbels 5 are welded and connected with the hoop plate 13 of the upper column 11 of the prefabricated column and the hoop plate 13 of the lower column 12 of the prefabricated column at the same time; the dark corbel 5 can also be welded. Including the upper corbel and the lower corbel, the upper corbel is welded and connected to the outer side of the hoop plate 13 of the upper column 11 of the prefabricated column, and the lower corbel is welded and connected to the outer side of the hoop plate 13 of the lower column 12 of the prefabricated column , and the lower end face of the upper corbel is welded to the upper end face of the lower corbel.
  • several studs 6 may be provided on the outer side of the concealed corbel 5 to enhance the connection strength between the concealed corbel 5 and the concrete beam 2 , thereby enhancing the connection strength between the prefabricated column 1 and the concrete beam 2 .
  • the present invention also provides a prefabricated concrete beam-column joint using the construction method for the prefabricated concrete beam-column joint disclosed in the above-mentioned embodiments
  • the prefabricated concrete beam-column joint includes a prefabricated column on the The column 11, the lower column 12 of the prefabricated column and the concrete beam 2, the lower end of the upper column 11 of the prefabricated column and the upper end of the lower column 12 of the prefabricated column are provided with a hoop plate 13, and the hoop plate 13 of the upper column 11 of the prefabricated column is connected with the lower column of the prefabricated column.
  • the hoop plate 13 of 12 is connected by welding; at the connection between the hoop plate 13 and the concrete beam 2 , the outer side of the hoop plate 13 is provided with a pick plate 4 , and the pick plate 4 is connected with the longitudinal bars 3 of the concrete beam 2 .
  • the pick plate 4 can be set as two horizontal steel plates parallel to each other as shown in FIG. 1 , can also be set as I-beam as shown in FIG. 3 , or can be set as anchor bars and other structures with similar functions.

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Abstract

一种装配式混凝土梁柱节点及其施工方法，装配式混凝土梁柱节点施工方法包括：在箍板内侧焊接环向加强板，布置纵筋和捆扎纵筋的箍筋，支模浇筑预制柱上柱和预制柱下柱；吊装预制柱上柱至预制柱下柱的正上方，焊接连接预制柱上柱的箍板与预制柱下柱的箍板；在预制柱上柱的箍板的外侧面与预制柱下柱的箍板的外侧面均焊接挑板；搭接并连接挑板与混凝土梁的纵筋；在挑板外支模浇筑混凝土。本发明提供的装配式混凝土梁柱节点施工方法保证了梁柱节点的结构强度和刚度，且施工便捷、施工成本低。

Description

一种装配式混凝土梁柱节点及其施工方法
本申请要求于2021年01月27日提交中国专利局、申请号为202110111231.X、发明名称为“一种装配式混凝土梁柱节点及其施工方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及建筑技术领域，更具体地说，涉及一种装配式混凝土梁柱节点施工方法。此外，本发明还涉及一种应用上述装配式混凝土梁柱节点施工方法的装配式混凝土梁柱节点。
背景技术
由于现场施工具有生产效率低、资源浪费率高、品质控制差、环境影响大等特点，为提高生产效率和施工质量、降低环境污染，装配式建筑近年来得到了大力发展。
为保证装配式建筑的整体受力性能，需要通过节点连接构件，以使其在荷载作用下共同受力。由于建筑结构受力机理复杂，节点处往往非单一受力状态，需要节点具有足够的强度和刚度。
现有的装配式混凝土构件主要包括干连接和湿连接。其中，目前的干施工工艺复杂，连接质量易受材料和操作技术的影响；湿连接为后浇混凝土，现场操作难度大，并且由于混凝土浇筑需要使用模板，因此施工工序复杂、操作繁琐、施工要求高，严重影响施工进度。
综上所述，如何提供一种经济便捷的装配式混凝土梁柱节点及其施工方法，是目前本领域技术人员亟待解决的问题。
发明内容
有鉴于此，本发明的目的是提供一种装配式混凝土梁柱节点施工方法，利用箍板焊接连接预制柱上柱和预制柱下柱，并通过焊接于箍板上的挑板连接预制柱和混凝土梁，在保证梁柱节点结构强度的同时提高了施工效率。
此外，本发明还提供了一种应用上述装配式混凝土梁柱节点施工方法的装配式混凝土预制柱。
为了实现上述目的，本发明提供如下技术方案：
一种装配式混凝土梁柱节点施工方法，包括：
在箍板内侧焊接环向加强板，布置纵筋和捆扎所述纵筋的箍筋，支模浇筑预制柱上柱和预制柱下柱；
吊装所述预制柱上柱至所述预制柱下柱的正上方，焊接连接所述预制柱上柱的所述箍板与所述预制柱下柱的所述箍板；
在所述预制柱上柱的所述箍板的外侧面与所述预制柱下柱的所述箍板的外侧面均焊接挑板；
搭接并连接所述挑板与所述混凝土梁的纵筋；
在所述挑板外支模浇筑混凝土。
优选的，当所述混凝土梁为现浇梁时，所述在所述挑板外支模浇筑混凝土，包括：
利用箍筋捆扎所述混凝土梁的纵筋；
在两根预制柱的所述箍板之间，支模浇筑所述混凝土梁。
优选的，所述预制柱上柱的所述箍板的外侧面与所述预制柱下柱的所述箍板的外侧面均设有若干个栓钉。
优选的，当所述混凝土梁为预制梁时，所述在所述挑板外支模浇筑混凝土，包括：
在所述混凝土梁的端面与所述箍板之间，支模浇筑混凝土。
优选的，所述预制梁的纵筋凸出所述预制梁的端面设置。
优选的，在所述搭接并连接所述挑板与所述混凝土梁的纵筋之前，在所述箍板的外侧面焊接暗牛腿。
优选的，所述暗牛腿的外侧面设有若干个栓钉。
优选的，所述挑板包括至少一块水平钢板或工字钢或T型钢。
优选的，所述挑板以及所述混凝土柱靠近所述挑板的箍筋加密布置。
一种装配式混凝土梁柱节点，包括预制柱上柱、预制柱下柱和混凝土梁，所述预制柱上柱的下端和所述预制柱下柱的上端均设有箍板，且所述 预制柱上柱的所述箍板与所述预制柱下柱的所述箍板焊接连接；
在所述箍板与所述混凝土梁的连接处，所述箍板的外侧面设有挑板，所述挑板与所述混凝土梁的纵筋连接。
本发明提供的装配式混凝土梁柱节点施工方法中，预制柱的预制柱上柱和预制柱下柱可在工厂内预先生产、无需现场浇筑，省去了预制柱的支模浇筑过程，提高了施工效率，降低了施工成本；挑板一端与混凝土梁的纵筋连接、一端与预制柱的箍板连接，提高了梁柱节点处预制柱和混凝土梁的连接强度，同时挑板与纵筋、箍板的连接方式简单、便于施工，大幅简化了施工过程；挑板与纵筋连接后进行混凝土填充，进一步增强了梁柱节点处的连接强度和刚度、提高了结构可靠性，由于采用分步浇筑的方式且每次浇筑的混凝土量小，简化了施工流程并降低了施工难度。
因此，本发明提供的装配式混凝土梁柱节点施工方法保证了梁柱节点的结构强度和刚度，且施工便捷、施工成本低。
此外，本发明还提供了一种应用上述装配式混凝土梁柱节点施工方法的装配式混凝土梁柱节点。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本发明所提供的装配式混凝土梁柱节点的具体实施例一的结构示意图；
图2为本发明所提供的装配式混凝土梁柱节点的具体实施例二的结构示意图；
图3为本发明所提供的装配式混凝土梁柱节点的具体实施例三的结构示意图。
图1-图3中：
1为预制柱、11为预制柱上柱、12为预制柱下柱、13为箍板、14为 环向加强板、2为混凝土梁、21为现浇混凝土、3为纵筋、4为挑板、5为暗牛腿、6为栓钉。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的核心是提供一种装配式混凝土梁柱节点施工方法，利用箍板焊接连接预制柱上柱和预制柱下柱，并通过焊接于箍板上的挑板连接预制柱和混凝土梁，在保证梁柱节点结构强度的同时提高了施工效率。
本发明还提供了一种应用上述装配式混凝土梁柱节点施工方法的装配式混凝土预制柱。
请参考图1-图3，图1为本发明所提供的装配式混凝土梁柱节点的具体实施例一的结构示意图；图2为本发明所提供的装配式混凝土梁柱节点的具体实施例二的结构示意图；图3为本发明所提供的装配式混凝土梁柱节点的具体实施例三的结构示意图。
需要进行说明的是，本申请文件中的预制柱1为预制柱上柱11与预制柱下柱12装配连接后形成的结构柱。
本发明提供的装配式混凝土梁柱节点施工方法，包括：
步骤S1，在箍板13内侧焊接环向加强板14，布置纵筋3和捆扎纵筋3的箍筋，支模浇筑预制柱上柱11和预制柱下柱12；
步骤S2，吊装预制柱上柱11至预制柱下柱12的正上方，焊接连接预制柱上柱11的箍板13与预制柱下柱12的箍板13；
步骤S3，在预制柱上柱11的箍板13的外侧面与预制柱下柱12的箍板13的外侧面均焊接挑板4；
步骤S4，搭接并连接挑板4与混凝土梁2的纵筋3；
步骤S5，在挑板4外支模浇筑混凝土。
其中，步骤S1为预制柱上柱11和预制柱下柱12的浇筑生产过程，步骤S2为预制柱1的装配连接过程，步骤S3-S5为预制柱1与混凝土梁2的装配连接过程。
需要对步骤S1进行说明的是，纵筋3和绑扎纵筋3的箍筋组成了预制柱1的钢筋骨架，纵筋3的种类、数量和分布位置以及箍筋的种类和数量根据预制柱1的设计要求参考现有技术确定，在此不再赘述。
箍板13用于连接预制柱上柱11和预制柱下柱12，箍板13环绕预制柱1的外周设置；由于箍板13与混凝土梁2连接，预制柱上柱11的箍板13与预制柱下柱12的箍板13二者的长度之和大于或等于混凝土梁2的高度；为了加强箍板13与预制柱1的连接强度，箍板13的内侧面可以设有若干个栓钉6，优选的，栓钉6沿预制柱1的轴线方向均匀分布。
为了进一步增强节点处的刚度和强度，优选的，可以在箍板13内焊接若干个竖向加劲肋。
环向加强板14环向焊接于箍板13内，提供了预制柱1的支模边界，同时也增强了箍板13与混凝土之间的连接强度。环向加强板14也可替换为对拉锚筋等具有相似功能的结构。环向加强板14的数量可以为一个，可以为多个；环向加强板14可焊接于箍板13的端部，也可以焊接于箍板13的中段。
预制柱上柱11和预制柱下柱12采用普通混凝土或高强混凝土浇筑，浇筑完成后依据混凝土施工要求对其进行养护。
需要对步骤S2进行说明的是，当预制柱上柱11与预制柱下柱12之间的间隙较大时，可以在预制柱上柱11下端面处的环向加强板14与预制柱下柱12上端面处的环向加强板14之间浇筑混凝土填充。
此外，优选的，可以在预制柱上柱11的下端面与预制柱下柱12的上端面之间设有内衬钢管，内衬钢管的两端分别与预制柱上柱11的环向加强板14、预制柱下柱12的环向加强板14焊接连接。内衬钢管的设置一方面有利于预制柱上柱11与预制柱下柱12的吊装对位，另一方面增强了预制柱1连接处的抗剪强度。
需要对步骤S3进行说明的是，为了增强梁柱节点的结构强度，混凝土 梁2需要同时与预制柱上柱11、预制柱下柱12连接，因此预制柱上柱11的箍板13和预制柱下柱12的箍板13上均设有与混凝土梁2的纵筋3连接的挑板4。
优选的，挑板4可以包括至少一块水平钢板或工字钢或T型钢，挑板4的具体数量与混凝土梁2的纵筋3的排数以及挑板4的形式相关，在此不赘述。
请参考图1，挑板4设置为两块相互平行的水平钢板，且两块水平钢板分别与预制柱上柱11的箍板13、预制柱下柱12的箍板13连接。预制柱1与混凝土梁2吊装对位时，两块水平钢板分别与混凝土梁2上翼缘处的纵筋3和下翼缘处的纵筋3搭接。
请参考图3，挑板4设置为工字钢，在施工现场容易获取且成本较低。预制柱1与混凝土梁2吊装对位时，工字钢的上翼缘板与混凝土梁2上侧的纵筋3搭接，下翼缘板与混凝土梁2下侧的纵筋3搭接。
为了增强工字钢与混凝土梁2的连接强度和刚度，可以在工字钢的腹板两侧设置若干个栓钉6。
需要对步骤S4进行说明的是，挑板4与混凝土梁2的纵筋3搭接，即挑板4与混凝土梁2的纵筋3存在重合部分，二者重合部分的具体长度参考现有规范关于锚固长度的要求计算确定，在此不再赘述；挑板4与混凝土梁2的纵筋3可以直接焊接连接，可以通过钢筋绑扎固定，也可以通过灌浆套筒或螺纹钢筋套筒连接。
优选的，预制梁的纵筋3凸出预制梁的端面设置，即预制梁两端的纵筋外伸，以方便纵筋3与挑板4焊接连接。
需要对步骤S5进行说明的是，挑板4与混凝土梁2的纵筋3连接后，为了进一步增强预制柱1与混凝土梁2的连接强度并保护纵筋3，在挑板4外支模浇筑混凝土。优选的，为了增强挑板4与纵筋3的连接强度，挑板4以及混凝土梁2靠近挑板3的端部的箍筋加密布置。
请参考图1，优选的，当混凝土梁2为现浇梁时，在挑板4外支模浇筑混凝土，包括：
步骤S51，利用箍筋绑扎混凝土梁2的纵筋3；
步骤S52，在两根预制柱1的箍板13之间，支模浇筑混凝土梁2。
对于现浇梁，混凝土梁2的纵筋3的两端分别与两根预制柱1的箍板13上的挑板4连接，根据混凝土梁2的设计要求设置箍筋绑扎并固定纵筋3；箍筋设置完成后，根据混凝土梁2的设计尺寸支模，浇筑混凝土梁2。
优选的，为了增强预制柱1与混凝土梁2的连接强度，可以在预制柱上柱11的箍板13的外侧面和预制柱下柱12的箍板13的外侧面均设有栓钉6。优选的，栓钉6沿混凝土梁2的高度方向均匀分布。
请参考图3，优选的，当混凝土梁2为预制梁时，在挑板4外支模浇筑混凝土，包括：在混凝土梁2的端面与箍板13之间，支模浇筑混凝土，增强预制柱1与预制梁之间的连接强度，提高梁柱节点的结构可靠性。
现浇混凝土21的浇筑量由混凝土梁2的高度以及混凝土梁2的纵筋3凸出混凝土梁2的端面的长度等因素决定。
在本实施例中，预制柱1的预制柱上柱11和预制柱下柱12可在工厂内预先生产、无需现场浇筑，省去了预制柱1的支模浇筑过程，提高了施工效率，降低了施工成本。
挑板4一端与混凝土梁2的纵筋3连接、一端与预制柱1的箍板13连接，提高了梁柱节点处预制柱1和混凝土梁2的连接强度，同时挑板4与纵筋3、箍板13的连接方式简单、施工容错能力强、便于施工，大幅简化了施工过程。
挑板4与纵筋3连接后进行混凝土填充，进一步增强了梁柱节点处的连接强度、提高了结构可靠性，由于采用分步浇筑的方式且每次浇筑的混凝土量较小，简化了施工流程并降低了施工难度。
因此，本实施例提供的装配式混凝土梁柱节点施工方法保证了梁柱节点的结构强度，且施工便捷、施工成本低。
优选的，为了进一步增强预制柱1与混凝土梁2之间的连接强度，在步骤S4之前，可以在箍板13的外侧面焊接暗牛腿5。
暗牛腿5用于分散梁柱节点处的受力，以增强梁柱节点的结构强度和刚度，请参考图1，暗牛腿5设置于两块挑板4之间。
暗牛腿5的数量可以为一块，如图1所示，暗牛腿5同时与预制柱上 柱11的箍板13和预制柱下柱12的箍板13焊接连接；暗牛腿5也可以包括上暗牛腿和下暗牛腿，上暗牛腿焊接连接于预制柱上柱11的箍板13的外侧面，下暗牛腿焊接连接于预制柱下柱12的箍板13的外侧面，且上暗牛腿的下端面与下暗牛腿的上端面焊接连接。
优选的，暗牛腿5的外侧面可以设有若干个栓钉6，以增强暗牛腿5与混凝土梁2之间的连接强度，进而增强预制柱1与混凝土梁2之间的连接强度。
除了上述装配式混凝土梁柱节点施工方法，本发明还提供一种应用上述实施例公开的装配式混凝土梁柱节点施工方法的装配式混凝土梁柱节点，该装配式混凝土梁柱节点包括预制柱上柱11、预制柱下柱12和混凝土梁2，预制柱上柱11的下端和预制柱下柱12的上端均设有箍板13，且预制柱上柱11的箍板13与预制柱下柱12的箍板13焊接连接；在箍板13与混凝土梁2的连接处，箍板13的外侧面设有挑板4，挑板4与混凝土梁2的纵筋3连接。
挑板4可以如图1所示设置为两块相互平行的水平钢板，也可以如图3所示设置为工字钢，也可设置锚筋等具有相似功能的结构。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
以上对本发明所提供的装配式混凝土梁柱节点及其施工方法进行了详细介绍。本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. [援引加入(细则20.6) 11.03.2022]　
    一种装配式混凝土梁柱节点施工方法，其特征在于，包括： 在箍板(13)内侧焊接环向加强板(14)，布置纵筋(3)和捆扎所述纵筋(3)的箍筋，支模浇筑预制柱上柱(11)和预制柱下柱(12)； 吊装所述预制柱上柱(11)至所述预制柱下柱(12)的正上方，焊接连接所述预制柱上柱(11)的所述箍板(13)与所述预制柱下柱(12)的所述箍板(13)； 在所述预制柱上柱(11)的所述箍板(13)的外侧面与所述预制柱下柱(12)的所述箍板(13)的外侧面均焊接挑板(4)； 搭接并连接所述挑板(4)与所述混凝土梁(2)的纵筋(3)； 在所述挑板(4)外支模浇筑混凝土。
  2. [援引加入(细则20.6) 11.03.2022]　
    根据权利要求1所述的装配式混凝土梁柱节点施工方法，其特征在于，当所述混凝土梁(2)为现浇梁时，所述在所述挑板(4)外支模浇筑混凝土，包括： 利用箍筋捆扎所述混凝土梁(2)的纵筋(3)； 在两根预制柱(1)的所述箍板(13)之间，支模浇筑所述混凝土梁(2)。
  3. [援引加入(细则20.6) 11.03.2022]　
    根据权利要求2所述的装配式混凝土梁柱节点施工方法，其特征在于，所述预制柱上柱(11)的所述箍板(13)的外侧面与所述预制柱下柱(12)的所述箍板(13)的外侧面均设有若干个栓钉(6)。
  4. [援引加入(细则20.6) 11.03.2022]　
    根据权利要求1所述的装配式混凝土梁柱节点施工方法，其特征在于，当所述混凝土梁(2)为预制梁时，所述在所述挑板(4)外支模浇筑混凝土，包括： 在所述混凝土梁(2)的端面与所述箍板(13)之间，支模浇筑混凝土。
  5. [援引加入(细则20.6) 11.03.2022]　
    根据权利要求4所述的装配式混凝土梁柱节点施工方法，其特征在于，所述预制梁的纵筋(3)凸出所述预制梁的端面设置。
  6. [援引加入(细则20.6) 11.03.2022]　
    根据权利要求1-5任一项所述的装配式混凝土梁柱节点施工方法，其特征在于，在所述搭接并连接所述挑板(4)与所述混凝土 梁(2)的纵筋(3)之前，在所述箍板(13)的外侧面焊接暗牛腿(5)。
  7. [援引加入(细则20.6) 11.03.2022]　
    根据权利要求6所述的装配式混凝土梁柱节点施工方法，其特征在于，所述暗牛腿(5)的外侧面设有若干个栓钉(6)。
  8. [援引加入(细则20.6) 11.03.2022]　
    根据权利要求1-5任一项所述的装配式混凝土梁柱节点施工方法，其特征在于，所述挑板(4)包括至少一块水平钢板或工字钢或T型钢。
  9. [援引加入(细则20.6) 11.03.2022]　
    根据权利要求1-5任一项所述的装配式混凝土节点施工方法，其特征在于，所述挑板(4)以及所述混凝土柱(2)靠近所述挑板(3)的端部箍筋加密布置。
  10. [援引加入(细则20.6) 11.03.2022]　
    一种装配式混凝土梁柱节点，其特征在于，包括预制柱上柱(11)、预制柱下柱(12)和混凝土梁(2)，所述预制柱上柱(11)的下端和所述预制柱下柱(12)的上端均设有箍板(13)，且所述预制柱上柱(11)的所述箍板(13)与所述预制柱下柱(12)的所述箍板(13)焊接连接； 在所述箍板(13)与所述混凝土梁(2)的连接处，所述箍板(13)的外侧面设有挑板(4)，所述挑板(4)与所述混凝土梁(2)的纵筋(3)连接。
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