CN105672494A - Grouting connecting joint and connecting method between steel core concrete column and steel beam - Google Patents
Grouting connecting joint and connecting method between steel core concrete column and steel beam Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 177
- 239000010959 steel Substances 0.000 title claims abstract description 177
- 239000004567 concrete Substances 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000005260 corrosion Methods 0.000 claims abstract 2
- 238000009434 installation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000003351 stiffener Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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Abstract
本发明涉及一种钢管混凝土柱和钢梁之间灌浆连接节点及连接方法，包括钢管混凝土柱、H型钢梁，所述钢管混凝土柱上套设有钢套管，钢套管与钢管混凝土柱同心且位于钢管混凝土柱外部，H型钢梁与钢套管相连接，钢套管与钢管混凝土柱之间设置有高强度灌浆层，钢套管内侧面及钢管混凝土柱外侧面均设置有环形抗剪键，位于钢套管上的环形抗剪键设置在位于钢管混凝土柱上的环形抗剪键的上方，钢套管上的环形抗剪键与钢管混凝土柱上的环形抗剪键的连线与水平面构成的夹角不小于45度，本发明连接整体性好，防止连接部位钢管壁局部传力，连接抗弯承载力和刚度大，施工简单，便于现场装配。
The invention relates to a grouting connection node and connection method between a steel pipe concrete column and a steel beam, comprising a steel pipe concrete column and an H-shaped steel beam, the steel pipe concrete column is covered with a steel casing, and the steel casing and the steel pipe concrete column Concentric and located outside the CFST column, the H-shaped steel beam is connected to the steel casing, a high-strength grouting layer is set between the steel casing and the CFST column, and ring-shaped anti-corrosion grouting is provided on the inner side of the steel casing and the outer side of the CFST column. Shear key, the circular shear key on the steel casing is set above the circular shear key on the steel tube concrete column, the connection line between the circular shear key on the steel casing and the circular shear key on the steel tube concrete column The included angle with the horizontal plane is not less than 45 degrees. The invention has good connection integrity, prevents partial force transmission of the steel pipe wall at the connection part, has high bending resistance and rigidity of the connection, and is simple in construction and convenient for on-site assembly.
Description
技术领域 technical field
本发明涉及一种钢管混凝土柱和钢梁之间灌浆连接节点及连接方法，尤其涉及一种应用在结构工程技术领域中、特别适用于装配式结构的钢管混凝土柱和钢梁之间的灌浆连接节点。 The invention relates to a grouting connection node and connection method between a steel pipe concrete column and a steel beam, in particular to a grouting connection between a steel pipe concrete column and a steel beam that is applied in the technical field of structural engineering and is especially suitable for an assembled structure node.
背景技术 Background technique
钢管混凝土是在钢管内部浇筑混凝土形成一种组合结构。内部核心混凝土受到外部钢管的约束作用，其抗压性能显著提高；外部钢管受到内部混凝土的侧向支撑，局部稳定性能显著改善。与钢结构和钢筋混凝土结构相比，钢管混凝土结构具有承载力高、塑形和抗震性能优越、节省材料和施工简便等优点，近年来应用广泛。钢管混凝土柱和钢梁组成的构架是建筑结构中一种典型的承重结构体系。梁柱节点是保证钢管混凝土柱和钢梁协同工作、形成结构整体的关键部件。梁端轴力和弯矩都是由梁的翼缘以轴力的方式经连接件传递给柱。为避免钢管局部被拉坏或者降低对核心混凝土的约束作用，通常在与梁受拉翼缘对应部位设置加劲肋。加劲肋的主要形式有外加强环、内加强环、环板贯通、十字板等，但这些加劲肋加工制作比较繁琐和困难，除外加强环以外均需在钢管内部焊接。梁腹板与焊接在钢管混凝土柱侧的连接板栓接，梁翼缘与加强板或钢管壁焊接。近年来，我国推广住宅产业的装配化，已有学者建议采用穿心螺栓或者引进国外的单边螺栓进行钢管混凝土柱和钢梁的现场连接。然而已有试验表明采用穿心螺栓连接的钢管混凝土柱和钢梁节点的抗弯承载力较大，但转动刚度不符合刚性节点的要求。采用单边螺栓的节点制作安装比较简单，但因为钢管柱管壁与梁翼缘对应位置没有设置加劲措施，柱管壁在受拉螺栓附近存在局部受拉，节点的抗弯承载力和转动刚度均不符合刚性节点的要求。 Concrete filled steel pipe is a composite structure formed by pouring concrete inside steel pipes. The inner core concrete is restrained by the outer steel pipe, and its compressive performance is significantly improved; the outer steel pipe is laterally supported by the inner concrete, and the local stability performance is significantly improved. Compared with steel structures and reinforced concrete structures, steel tube concrete structures have the advantages of high bearing capacity, superior shaping and seismic performance, material saving and simple construction, and have been widely used in recent years. The frame composed of steel pipe concrete columns and steel beams is a typical load-bearing structural system in building structures. Beam-column joints are the key components to ensure that CFST columns and steel beams work together to form a structural integrity. The axial force and bending moment at the end of the beam are transmitted from the flange of the beam to the column through the connector in the form of axial force. In order to prevent the steel pipe from being damaged locally or to reduce the restraint effect on the core concrete, stiffeners are usually provided at the parts corresponding to the tension flange of the beam. The main forms of stiffeners are outer stiffener ring, inner stiffener ring, ring plate penetration, cross plate, etc., but the processing and manufacture of these stiffener ribs is cumbersome and difficult, and all but the stiffener rings need to be welded inside the steel pipe. The beam web is bolted to the connecting plate welded on the side of the steel pipe concrete column, and the beam flange is welded to the reinforcement plate or the steel pipe wall. In recent years, my country has promoted the assembly of the housing industry, and some scholars have suggested using through-hole bolts or single-sided bolts imported from abroad for on-site connection of CFST columns and steel beams. However, existing tests have shown that the joints of CFST columns and steel beams connected by through-piercing bolts have relatively high flexural bearing capacity, but the rotational stiffness does not meet the requirements of rigid joints. The fabrication and installation of joints using unilateral bolts is relatively simple, but because there are no stiffening measures at the corresponding positions between the steel tube column wall and the beam flange, the column tube wall is under local tension near the tension bolts, and the flexural bearing capacity and rotational stiffness of the joints are not good. Meet the requirements of rigid joints.
发明内容 Contents of the invention
本发明目的在于提供一种连接整体性好，防止连接部位钢管壁局部传力，连接抗弯承载力和刚度大，施工简单，便于现场装配的钢管混凝土柱和钢梁之间灌浆连接节点及连接方法。 The purpose of the present invention is to provide a joint with good connection integrity, which prevents local force transmission of the steel pipe wall at the connection part, has a large bending resistance and rigidity of the connection, is simple in construction, and is convenient for on-site assembly of the grouting connection node and connection between the steel pipe concrete column and the steel beam. method.
为了解决上述技术问题，本发明的一种技术方案是，一种钢管混凝土柱和钢梁之间灌浆连接节点，包括钢管混凝土柱、H型钢梁，所述钢管混凝土柱上套设有钢套管，钢套管与钢管混凝土柱同心且位于钢管混凝土柱外部，H型钢梁与钢套管相连接，钢套管与钢管混凝土柱之间设置有高强度灌浆层，钢套管内侧面及钢管混凝土柱外侧面均设置有环形抗剪键。 In order to solve the above technical problems, a technical solution of the present invention is a grouting connection node between a steel tube concrete column and a steel beam, including a steel tube concrete column and an H-shaped steel beam, and a steel sleeve is provided on the steel tube concrete column The steel casing is concentric with the steel pipe concrete column and is located outside the steel pipe concrete column. The H-shaped steel beam is connected with the steel casing. A high-strength grouting layer is set between the steel casing and the steel pipe concrete column. The outer sides of the concrete columns are provided with annular shear keys.
进一步的，H型钢梁的翼缘及腹板均与钢套管焊接。 Further, the flange and the web of the H-shaped steel beam are welded with the steel casing.
进一步的，环形抗剪键与钢套管或钢管混凝土柱焊接。 Further, the annular shear key is welded with the steel casing or the steel pipe concrete column.
进一步的，位于钢套管上的环形抗剪键设置在位于钢管混凝土柱上的环形抗剪键的上方，钢套管上的环形抗剪键与钢管混凝土柱上的环形抗剪键的连线与水平面构成的夹角不小于45度。 Further, the annular shear key on the steel casing is arranged above the annular shear key on the steel tube concrete column, and the connection line between the annular shear key on the steel sleeve and the annular shear key on the steel tube concrete column The angle formed with the horizontal plane is not less than 45 degrees.
一种钢管混凝土柱和钢梁的连接方法，包括以下步骤： A method for connecting a steel pipe concrete column and a steel beam, comprising the following steps:
（1）在钢管混凝土柱外侧面及钢套管内侧面焊接环形抗剪键，并保证安装完成后钢套管上的环形抗剪键与钢管混凝土柱上的环形抗剪键的连线与水平面构成的夹角不小于45度； (1) Weld the annular shear key on the outer surface of the steel pipe concrete column and the inner surface of the steel casing, and ensure that the connection line between the annular shear key on the steel casing and the annular shear key on the steel pipe concrete column and the horizontal plane form after the installation is completed The included angle is not less than 45 degrees;
（2）将H型钢梁的翼缘及腹板与钢套管焊接制成一体； (2) The flange and web of the H-shaped steel beam and the steel casing are welded into one;
（3）将钢套管套设在钢管混凝土柱上； (3) Set the steel casing on the steel pipe concrete column;
（4）在钢套管与钢管混凝土柱之间浇筑高强度灌浆料，将钢套管与钢管混凝柱连成一体。 (4) Pour high-strength grouting material between the steel casing and the steel tube concrete column to integrate the steel casing and the steel tube concrete column.
进一步的，在步骤（1）中，环形抗剪键为圆钢或钢板制成。 Further, in step (1), the annular shear key is made of round steel or steel plate.
进一步的，在步骤（1）中，位于钢套管上的环形抗剪键位于位于钢管混凝土柱上的环形抗剪键的上方。 Further, in step (1), the annular shear key on the steel casing is located above the annular shear key on the steel tube concrete column.
与现有技术相比，本发明具有以下有益效果：施工方便简单，可实现钢管混凝土结构的装配化施工；制作简单，无需在钢管内部或者外部设置加劲肋，也无需在钢管上钻孔；连接部位得到加强，节点整体性强，其承载性能和刚度均较好；避免了因钢管混凝土柱管壁局部受拉对其承载性能的影响，尤其适用于薄壁钢管混凝土柱与钢梁的连接。 Compared with the prior art, the present invention has the following beneficial effects: the construction is convenient and simple, and the assembled construction of the steel pipe concrete structure can be realized; the production is simple, and there is no need to set stiffeners inside or outside the steel pipe, and it is not necessary to drill holes on the steel pipe; The position is strengthened, the integrity of the joint is strong, and its load-bearing performance and stiffness are good; it avoids the impact on the load-bearing performance of the steel pipe concrete column due to local tension on the wall, and is especially suitable for the connection of thin-walled steel pipe concrete columns and steel beams.
下面结合附图和具体实施方式对本发明做进一步详细的说明。 The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
附图说明 Description of drawings
图1是本发明的结构示意图； Fig. 1 is a structural representation of the present invention;
图2是本发明的剖面图。 Figure 2 is a sectional view of the present invention.
图中： In the picture:
1-钢管混凝土柱；2-H型钢梁；3-钢套管；4-高强度灌浆层；5-环形抗剪键。 1-Concrete steel tube column; 2-H-shaped steel beam; 3-steel casing; 4-high-strength grouting layer; 5-ring shear key.
具体实施方式 detailed description
如图1-2所示，一种钢管混凝土柱和钢梁之间灌浆连接节点，包括钢管混凝土柱1、H型钢梁2，所述钢管混凝土柱1上套设有钢套管3，钢套管3与钢管混凝土柱1同心且位于钢管混凝土柱1外部，H型钢梁2与钢套管3相连接，钢套管3与钢管混凝土柱1之间设置有高强度灌浆层4，钢套管3内侧面及钢管混凝土柱1外侧面均设置有环形抗剪键5。 As shown in Figure 1-2, a grouting connection node between a steel pipe concrete column and a steel beam includes a steel pipe concrete column 1 and an H-shaped steel beam 2. The casing 3 is concentric with the steel pipe concrete column 1 and is located outside the steel pipe concrete column 1. The H-shaped steel beam 2 is connected with the steel casing 3. A high-strength grouting layer 4 is arranged between the steel casing 3 and the steel pipe concrete column 1. Annular shear keys 5 are provided on the inner side of the casing 3 and the outer side of the steel tube concrete column 1 .
在本实施例中，H型钢梁2的翼缘及腹板均与钢套管3焊接。 In this embodiment, the flange and the web of the H-shaped steel beam 2 are welded to the steel casing 3 .
在本实施例中，环形抗剪键5与钢套管3或钢管混凝土柱1焊接。 In this embodiment, the annular shear key 5 is welded to the steel casing 3 or the steel tube concrete column 1 .
在本实施例中，位于钢套管3上的环形抗剪键设置在位于钢管混凝土柱1上的环形抗剪键的上方，钢套管3上的环形抗剪键与钢管混凝土柱1上的环形抗剪键的连线与水平面构成的夹角不小于45度。 In this embodiment, the annular shear key on the steel casing 3 is set above the annular shear key on the steel pipe concrete column 1, and the annular shear key on the steel casing 3 and the annular shear key on the steel pipe concrete column 1 The angle between the connection line of the ring shear key and the horizontal plane is not less than 45 degrees.
一种钢管混凝土柱和钢梁的连接方法，包括以下步骤： A method for connecting a steel pipe concrete column and a steel beam, comprising the following steps:
（1）在钢管混凝土柱1外侧面及钢套管3内侧面焊接环形抗剪键5，保证安装完成后钢套管3上的环形抗剪键与钢管混凝土柱1上的环形抗剪键的连线与水平面构成的夹角不小于45度； (1) The annular shear key 5 is welded on the outer surface of the steel pipe concrete column 1 and the inner surface of the steel casing 3 to ensure that the annular shear key on the steel casing 3 and the annular shear key on the steel pipe concrete column 1 are aligned after the installation is completed. The angle between the connecting line and the horizontal plane is not less than 45 degrees;
（2）将钢套管3套设在钢管混凝土柱1上； (2) Set the steel casing 3 on the steel pipe concrete column 1;
（3）将H型钢梁2的翼缘及腹板与钢套管3焊接制成一体； (3) Welding the flange and web of the H-shaped steel beam 2 and the steel casing 3 into one;
（4）在钢套管3与钢管混凝土柱1之间浇筑高强度灌浆料，将钢套管3与钢管混凝柱1连成一体。 (4) Pour high-strength grouting material between the steel casing 3 and the steel tube concrete column 1, and connect the steel casing 3 and the steel tube concrete column 1 into one.
在本实施例中，在步骤（1）中，环形抗剪键5为圆钢或钢板制成。 In this embodiment, in step (1), the annular shear key 5 is made of round steel or steel plate.
在本实施例中，在步骤（1）中，位于钢套管3上的环形抗剪键位于位于钢管混凝土柱1上的环形抗剪键的上方。 In this embodiment, in step (1), the annular shear key on the steel casing 3 is located above the annular shear key on the concrete filled steel tube column 1 .
上列为较佳实施例，对本发明的目的、技术方案和优点进行了进一步详细说明，所应理解的是，以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 The above list is a preferred embodiment, and the purpose, technical solutions and advantages of the present invention are further described in detail. It should be understood that the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
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| CN107345428A (en) * | 2017-05-23 | 2017-11-14 | 沈阳建筑大学 | A kind of assembly concrete-filled steel tube girder steel runs through node |
| CN109339252A (en) * | 2018-11-21 | 2019-02-15 | 福建工程学院 | A kind of bolt assembly grouting to connect concrete-filled steel tubular joints and construction method thereof |
| CN110725406A (en) * | 2019-09-18 | 2020-01-24 | 长安大学 | Connection method of composite steel tube concrete column and steel beam and an integral outer reinforcing ring connection node |
| CN110878587A (en) * | 2019-10-24 | 2020-03-13 | 武汉理工大学 | Module assembly type building beam column node connection structure |
| CN112681531A (en) * | 2021-01-12 | 2021-04-20 | 昆明理工大学 | Assembled precast concrete piece square steel post and girder steel node |
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Application publication date: 20160615 |