CN108149844A - A kind of self-positioning assembly concrete-filled steel tube intercolumniation node and its construction method - Google Patents
A kind of self-positioning assembly concrete-filled steel tube intercolumniation node and its construction method Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 127
- 239000010959 steel Substances 0.000 title claims abstract description 127
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000003351 stiffener Substances 0.000 claims description 72
- 238000005192 partition Methods 0.000 claims description 16
- 238000003466 welding Methods 0.000 claims description 6
- 239000011440 grout Substances 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 3
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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
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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
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
- E04B1/585—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form with separate connection devices
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Abstract
本发明涉及一种自定位装配式钢管混凝土柱间节点，包括预制上柱与预制下柱，所述预制上柱的底部与预制下柱的顶部焊接在一起，所述预制上柱的上部浇筑有上柱混凝土，所述预制下柱的下部浇筑有下柱混凝土，所述预制上柱的下部与预制下柱的上部均浇筑有水泥基灌浆料；本发明还涉及一种自定位装配式钢管混凝土柱间节点的施工方法。本发明不仅结构设计简单、安全可靠，而且高效便捷，易于安装定位与施工。
The invention relates to a self-positioning assembled concrete-filled steel pipe inter-column joint, comprising a prefabricated upper column and a prefabricated lower column, the bottom of the prefabricated upper column and the top of the prefabricated lower column are welded together, and the upper part of the prefabricated upper column is poured with Concrete for the upper column, the lower part of the prefabricated lower column is poured with lower column concrete, and the lower part of the prefabricated upper column and the upper part of the prefabricated lower column are both poured with cement-based grouting material; the present invention also relates to a self-positioning fabricated steel pipe concrete Construction method of joints between columns. The invention is not only simple in structural design, safe and reliable, but also efficient and convenient, and easy to install, locate and construct.
Description
技术领域technical field
本发明涉及一种自定位装配式钢管混凝土柱间节点及其施工方法。The invention relates to a self-positioning assembled steel pipe concrete column inter-column node and a construction method thereof.
背景技术Background technique
圆钢管混凝土柱具有承载力高、截面小、抗震性能好和施工方便的优点，该类构件已被大量应用于高层和大跨度建筑结构中，符合国家大力发展绿色建筑、装配式结构的趋势。但是实际工程中圆钢管混凝土柱多为现浇构件，该类构件具有如下缺点：1）受现场施工条件和养护条件的限制，混凝土浇筑质量不易保证；2）由于混凝土养护一般需要七天，因此施工周期长。另一方面，现有的规范中仅建议了采用法兰盘连接的装配式钢管混凝土柱，该类柱仍存在如下问题：1）其连接部位突出在钢管壁外，因此美观性较差，不适合用在住宅和大型公共建筑中；2）上下柱及其法兰盘螺栓孔的安装定位难度大。Circular concrete-filled steel tube columns have the advantages of high bearing capacity, small cross-section, good seismic performance and convenient construction. This type of component has been widely used in high-rise and long-span building structures, which is in line with the national trend of vigorously developing green buildings and prefabricated structures. However, in actual engineering, the circular steel pipe concrete columns are mostly cast-in-place components, which have the following disadvantages: 1) Due to the limitation of on-site construction conditions and curing conditions, the quality of concrete pouring is not easy to guarantee; 2) Since the concrete curing generally takes seven days, the construction The cycle is long. On the other hand, the existing codes only suggest prefabricated steel pipe concrete columns connected by flanges, which still have the following problems: 1) The connection part protrudes outside the steel pipe wall, so the aesthetics is poor, and the It is suitable for use in residential buildings and large public buildings; 2) It is difficult to install and position the upper and lower columns and their flange bolt holes.
发明内容Contents of the invention
鉴于现有技术的不足，本发明所要解决的技术问题是提供一种自定位装配式钢管混凝土柱间节点及其施工方法，不仅结构设计合理，而且高效便捷。In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a self-positioning assembled concrete-filled steel tube inter-column joint and its construction method, which is not only reasonable in structural design, but also efficient and convenient.
为了解决上述技术问题，本发明的技术方案是：一种自定位装配式钢管混凝土柱间节点，包括预制上柱与预制下柱，所述预制上柱的底部与预制下柱的顶部焊接在一起，所述预制上柱的上部浇筑有上柱混凝土，所述预制下柱的下部浇筑有下柱混凝土，所述预制上柱的下部与预制下柱的上部均浇筑有水泥基灌浆料。In order to solve the above technical problems, the technical solution of the present invention is: a self-positioning assembled concrete-filled steel tube inter-column joint, comprising a prefabricated upper column and a prefabricated lower column, the bottom of the prefabricated upper column and the top of the prefabricated lower column are welded together , the upper part of the prefabricated upper column is poured with upper column concrete, the lower part of the prefabricated lower column is poured with lower column concrete, and the lower part of the prefabricated upper column and the upper part of the prefabricated lower column are both poured with cement-based grouting material.
进一步的，所述预制上柱包含上柱钢管，所述上柱钢管的内腔上部浇筑有上柱混凝土，所述上柱钢管的内腔设置有用以承载上柱混凝土的隔板，所述隔板的底部环形间隔设置有若干个上纵向加劲肋；所述预制下柱包含下柱钢管，所述下柱钢管的内腔下部浇筑有下柱混凝土，所述下柱钢管的内腔上部环形间隔设置有若干个下纵向加劲肋，所述上纵向加劲肋向下伸入下柱钢管的内腔，所述下纵向加劲肋向上伸入上柱钢管的内腔。Further, the prefabricated upper column includes an upper column steel pipe, the inner cavity of the upper column steel pipe is poured with upper column concrete, and the inner cavity of the upper column steel pipe is provided with a partition for carrying the upper column concrete, the partition The bottom of the slab is provided with several upper longitudinal stiffeners at annular intervals; the prefabricated lower column includes a lower column steel pipe, the inner cavity of the lower column steel tube is poured with lower column concrete, and the upper inner cavity of the lower column steel tube is annularly spaced Several lower longitudinal stiffeners are provided, the upper longitudinal stiffeners extend downward into the inner cavity of the lower column steel pipe, and the lower longitudinal stiffeners extend upward into the inner cavity of the upper column steel pipe.
进一步的，所述隔板与上柱钢管的底部之间的距离为D/3，所述下纵向加劲肋的下端与下柱钢管的顶部之间距离为D/3，其中D为上柱钢管与下柱钢管的直径。Further, the distance between the partition plate and the bottom of the upper column steel pipe is D/3, and the distance between the lower end of the lower longitudinal stiffener and the top of the lower column steel pipe is D/3, wherein D is the upper column steel pipe and the diameter of the steel pipe under the column.
进一步的，所述上柱钢管在隔板的下部开设有出气孔，所述下柱钢管的上部设置有灌浆孔，所述灌浆孔与下柱钢管的顶部之间的距离为D/3，其中D为上柱钢管与下柱钢管的直径。Further, the upper column steel pipe is provided with an air outlet in the lower part of the partition, and the upper part of the lower column steel pipe is provided with a grouting hole, and the distance between the grouting hole and the top of the lower column steel pipe is D/3, wherein D is the diameter of the upper column steel pipe and the lower column steel pipe.
进一步的，所述上纵向加劲肋的下端与下纵向加劲肋的上端均为圆弧端。Further, the lower end of the upper longitudinal stiffener and the upper end of the lower longitudinal stiffener are arc ends.
进一步的，所述上纵向加劲肋向下伸入下柱钢管的内腔的长度为L1/2,其中L1为上纵向加劲肋的长度，所述下纵向加劲肋向上伸入上柱钢管的内腔的长度为L2/2，其中L2为下纵向加劲肋的长度。Further, the length of the upper longitudinal stiffener extending downward into the inner cavity of the lower column steel pipe is L 1 /2, wherein L 1 is the length of the upper longitudinal stiffener, and the lower longitudinal stiffener extends upward into the upper column steel pipe The length of the inner cavity is L 2 /2, where L 2 is the length of the lower longitudinal stiffener.
进一步的，所述上纵向加劲肋的壁厚大于1.5倍上柱钢管的壁厚，所述下纵向加劲肋的壁厚大于1.5倍下柱钢管的壁厚。Further, the wall thickness of the upper longitudinal stiffener is greater than 1.5 times the wall thickness of the upper column steel pipe, and the wall thickness of the lower longitudinal stiffener is greater than 1.5 times the wall thickness of the lower column steel pipe.
进一步的，所述上纵向加劲肋的双侧壁或单侧壁、下纵向加劲肋的双侧壁或单侧壁均设置有抗剪栓钉。Further, the double side wall or single side wall of the upper longitudinal stiffener and the double side wall or single side wall of the lower longitudinal stiffener are provided with shear studs.
进一步的，所述上柱钢管的底部边缘设置有利于焊接的剖口。Further, the bottom edge of the upper column steel pipe is provided with a slit for welding.
一种自定位装配式钢管混凝土柱间节点的施工方法，包括上述所述的一种自定位装配式钢管混凝土柱间节点，包含以下步骤：A construction method for self-positioning assembled concrete-filled steel pipe inter-column joints, comprising the aforementioned self-positioning assembled steel-filled concrete-filled column inter-column joints, including the following steps:
（1）制备预制上柱；(1) Prepare the prefabricated upper column;
（2）制备预制下柱；(2) Prepare the prefabricated lower column;
（3）将所述预制上柱吊装至预制下柱的上方并将两者焊接在一起；(3) hoisting the prefabricated upper column above the prefabricated lower column and welding the two together;
（4）往所述预制上柱的下部与预制下柱的上部浇筑水泥基灌浆料。(4) Pour cement-based grouting material on the lower part of the prefabricated upper column and the upper part of the prefabricated lower column.
与现有技术相比，本发明具有以下有益效果：Compared with the prior art, the present invention has the following beneficial effects:
（1）上纵向加劲肋、下纵向加劲肋起到定位导向作用，极大地降低了施工难度；(1) The upper longitudinal stiffener and the lower longitudinal stiffener play a positioning and guiding role, which greatly reduces the difficulty of construction;
（2）上纵向加劲肋、下纵向加劲肋可直接提高构件的抗压承载力，同时上纵向加劲肋、下纵向加劲肋还可提高水泥基灌浆料区域的钢管壁的局部稳定性和承载力；(2) The upper longitudinal stiffener and the lower longitudinal stiffener can directly improve the compressive bearing capacity of the member, and at the same time, the upper longitudinal stiffener and the lower longitudinal stiffener can also improve the local stability and bearing capacity of the steel pipe wall in the cement-based grouting area ;
（3）抗剪栓钉还可在很大程度上提高浇筑水泥基灌浆料区域的钢管壁、上纵向加劲肋、下纵向加劲肋以及水泥基灌浆料共同工作的效果，减小上柱钢管与下柱钢管连接焊缝处的拉应力值，安全可靠；(3) The shear studs can also greatly improve the joint work effect of the steel pipe wall, the upper longitudinal stiffener, the lower longitudinal stiffener and the cement-based grout in the area where the cement-based grouting material is poured, reducing the steel pipe wall and the cement-based grouting material. The tensile stress value at the joint weld of the lower column steel pipe is safe and reliable;
（4）采用工业化生产，施工质量高。(4) Industrialized production is adopted, and the construction quality is high.
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 further described in detail below in conjunction with the accompanying drawings and specific embodiments.
附图说明Description of drawings
图1为本发明实施例的构造示意图。Fig. 1 is a schematic diagram of the structure of an embodiment of the present invention.
图2为本发明实施例的俯视示意图。Fig. 2 is a schematic top view of an embodiment of the present invention.
图3为本发明实施例图2A-A方向的剖视示意图。Fig. 3 is a schematic cross-sectional view along the direction A-A of Fig. 2 according to the embodiment of the present invention.
图4为本发明实施例图2B-B方向的剖视示意图。Fig. 4 is a schematic cross-sectional view along the direction B-B of Fig. 2 according to an embodiment of the present invention.
图中：1-预制上柱，101-上柱钢管，102-隔板，103-上纵向加劲肋，104-出气孔，2-预制下柱，201-下柱钢管，202-下纵向加劲肋，203-灌浆孔，3-上柱混凝土，4-下柱混凝土，5-水泥基灌浆料，6-环向焊缝，7-抗剪栓钉。In the figure: 1- prefabricated upper column, 101- upper column steel pipe, 102- bulkhead, 103- upper longitudinal stiffener, 104- air outlet, 2- prefabricated lower column, 201- lower column steel pipe, 202- lower longitudinal stiffener , 203-grouting hole, 3-upper column concrete, 4-lower column concrete, 5-cement-based grouting material, 6-circumferential weld, 7-shear studs.
具体实施方式Detailed ways
为让本发明的上述特征和优点能更明显易懂，下文特举实施例，并配合附图，作详细说明如下。In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.
如图1~4所示，一种自定位装配式钢管混凝土柱间节点，包括预制上柱1与预制下柱2，所述预制上柱1的底部与预制下柱2的顶部焊接在一起，所述预制上柱1的上部浇筑有上柱混凝土3，所述预制下柱2的下部浇筑有下柱混凝土4，所述预制上柱1的下部与预制下柱2的上部均浇筑有水泥基灌浆料5。As shown in Figures 1 to 4, a self-positioning assembled concrete-filled steel tube inter-column joint includes a prefabricated upper column 1 and a prefabricated lower column 2, the bottom of the prefabricated upper column 1 and the top of the prefabricated lower column 2 are welded together, The upper part of the prefabricated upper column 1 is poured with upper column concrete 3, the lower part of the prefabricated lower column 2 is poured with lower column concrete 4, and the lower part of the prefabricated upper column 1 and the upper part of the prefabricated lower column 2 are poured with cement base Grouting material 5.
在本发明实施例中，所述预制上柱1包含上柱钢管101，所述上柱钢管101的内腔上部浇筑有上柱混凝土3，所述上柱钢管101的内腔设置有用以承载上柱混凝土3的隔板102，所述隔板102的底部环形间隔设置有若干个上纵向加劲肋103；所述预制下柱2包含下柱钢管201，所述下柱钢管201的内腔下部浇筑有下柱混凝土4，所述下柱钢管201的内腔上部环形间隔设置有若干个下纵向加劲肋202，所述上纵向加劲肋103向下伸入下柱钢管201的内腔，所述下纵向加劲肋202向上伸入上柱钢管101的内腔；优选的，所述上柱钢管101与下柱钢管201焊接在一起，所述上柱钢管101与下柱钢管201之间具有环向焊缝6，所述上柱钢管101与隔板102焊接在一起，所述隔板102与上纵向加劲肋103焊接在一起，所述下柱钢管201与下纵向加劲肋202焊接在一起；优选的，所述上纵向加劲肋103的个数、下纵向加劲肋202的个数均为三个以上；优选的，所述上纵向加劲肋103与下纵向加劲肋202相互交叉设置；优选的，所述上柱钢管101与下柱钢管201均为圆形钢管。In the embodiment of the present invention, the prefabricated upper column 1 includes an upper column steel pipe 101, the inner cavity of the upper column steel pipe 101 is poured with upper column concrete 3, and the inner cavity of the upper column steel pipe 101 is provided with a The partition 102 of the column concrete 3, the bottom of the partition 102 is provided with several upper longitudinal stiffeners 103 at annular intervals; the prefabricated lower column 2 includes a lower column steel pipe 201, and the lower part of the inner cavity of the lower column steel pipe 201 is poured There is a lower column of concrete 4, and several lower longitudinal stiffeners 202 are arranged at annular intervals on the inner cavity of the lower column steel pipe 201, and the upper longitudinal stiffeners 103 extend downward into the inner cavity of the lower column steel pipe 201. The longitudinal stiffener 202 extends upward into the inner cavity of the upper column steel pipe 101; preferably, the upper column steel pipe 101 and the lower column steel pipe 201 are welded together, and there is a circumferential weld between the upper column steel pipe 101 and the lower column steel pipe 201. Seam 6, the upper column steel pipe 101 is welded together with the partition 102, the partition 102 is welded with the upper longitudinal stiffener 103, and the lower column steel pipe 201 is welded with the lower longitudinal stiffener 202; preferably , the number of the upper longitudinal stiffeners 103 and the number of the lower longitudinal stiffeners 202 are more than three; preferably, the upper longitudinal stiffeners 103 and the lower longitudinal stiffeners 202 are intersected; preferably, the Both the upper column steel pipe 101 and the lower column steel pipe 201 are circular steel pipes.
在本发明实施例中，所述隔板102与上柱钢管101的底部之间的距离为D/3，所述下纵向加劲肋202的下端与下柱钢管201的顶部之间距离为D/3，其中D为上柱钢管101与下柱钢管201的直径，也就是说，所述上柱钢管101与下柱钢管201的直径相等；所述下纵向加劲肋202的下端可以伸入下柱混凝土4或不伸入下柱混凝土4，根据实际情况而定，并不局限于此。In the embodiment of the present invention, the distance between the partition plate 102 and the bottom of the upper column steel pipe 101 is D/3, and the distance between the lower end of the lower longitudinal stiffener 202 and the top of the lower column steel pipe 201 is D/3 3, where D is the diameter of the upper column steel pipe 101 and the lower column steel pipe 201, that is to say, the diameters of the upper column steel pipe 101 and the lower column steel pipe 201 are equal; the lower end of the lower longitudinal stiffener 202 can extend into the lower column Concrete 4 or do not extend into lower column concrete 4, decide according to actual conditions, not limited to this.
在本发明实施例中，所述上柱钢管101在隔板102的下部开设有出气孔104，所述下柱钢管201的上部设置有灌浆孔203，所述灌浆孔203与下柱钢管201的顶部之间的距离为D/3，其中D为上柱钢管101与下柱钢管201的直径，也就是说，所述上柱钢管101与下柱钢管201的直径相等；优选的，所述出气孔104的个数为两个以上，所述灌浆孔203的个数为一个。In the embodiment of the present invention, the upper column steel pipe 101 is provided with an air outlet 104 at the lower part of the partition 102, and the upper part of the lower column steel pipe 201 is provided with a grouting hole 203, and the grouting hole 203 is connected with the lower column steel pipe 201. The distance between the tops is D/3, wherein D is the diameter of the upper column steel pipe 101 and the lower column steel pipe 201, that is to say, the diameters of the upper column steel pipe 101 and the lower column steel pipe 201 are equal; preferably, the outlet The number of air holes 104 is more than two, and the number of the grouting hole 203 is one.
在本发明实施例中，所述上纵向加劲肋103的下端与下纵向加劲肋202的上端均为圆弧端。In the embodiment of the present invention, the lower end of the upper longitudinal stiffener 103 and the upper end of the lower longitudinal stiffener 202 are arc ends.
在本发明实施例中，所述上纵向加劲肋103向下伸入下柱钢管201的内腔的长度为L1/2,其中L1为上纵向加劲肋103的长度，所述下纵向加劲肋202向上伸入上柱钢管101的内腔的长度为L2/2，其中L2为下纵向加劲肋202的长度。In the embodiment of the present invention, the length of the upper longitudinal stiffener 103 extending downward into the inner cavity of the lower column steel pipe 201 is L 1 /2, where L 1 is the length of the upper longitudinal stiffener 103, and the lower longitudinal stiffener The length of the rib 202 extending upward into the inner cavity of the upper column steel pipe 101 is L 2 /2, where L 2 is the length of the lower longitudinal stiffener 202 .
在本发明实施例中，所述上纵向加劲肋103的壁厚大于1.5倍上柱钢管101的壁厚，所述下纵向加劲肋202的壁厚大于1.5倍下柱钢管201的壁厚。In the embodiment of the present invention, the wall thickness of the upper longitudinal stiffener 103 is greater than 1.5 times the wall thickness of the upper column steel pipe 101 , and the wall thickness of the lower longitudinal stiffener 202 is greater than 1.5 times the wall thickness of the lower column steel pipe 201 .
在本发明实施例中，所述上纵向加劲肋103的双侧壁或单侧壁、下纵向加劲肋202的双侧壁或单侧壁均设置有抗剪栓钉7；优选的，所述上纵向加劲肋103、下纵向加劲肋202与抗剪栓钉7焊接在一起。In the embodiment of the present invention, the double side wall or single side wall of the upper longitudinal stiffener 103 and the double side wall or single side wall of the lower longitudinal stiffener 202 are provided with shear studs 7; preferably, the The upper longitudinal stiffener 103, the lower longitudinal stiffener 202 and the shear stud 7 are welded together.
在本发明实施例中，所述上柱混凝土3与下柱混凝土4均为普通混凝土；所述水泥基灌浆料5的设计强度比上柱混凝土3、下柱混凝土4的设计强度高10MPa以上。In the embodiment of the present invention, the upper column concrete 3 and the lower column concrete 4 are ordinary concrete; the design strength of the cement-based grouting material 5 is more than 10 MPa higher than that of the upper column concrete 3 and the lower column concrete 4 .
在本发明实施例中，所述上柱钢管101的底部边缘设置有利于焊接的剖口，在剖口处施加环向焊缝6。In the embodiment of the present invention, the bottom edge of the upper column steel pipe 101 is provided with a slit favorable for welding, and a circumferential weld 6 is applied at the slit.
在本发明实施例中，一种自定位装配式钢管混凝土柱间节点的施工方法，包括上述所述的一种自定位装配式钢管混凝土柱间节点，包含以下步骤：In an embodiment of the present invention, a construction method of a self-positioning assembled concrete-filled steel pipe inter-column joint includes the above-mentioned self-positioning assembled steel-filled concrete-filled inter-column joint, including the following steps:
（1）制备预制上柱1；(1) Prepare the prefabricated upper column 1;
（2）制备预制下柱2；(2) Prepare the prefabricated lower column 2;
（3）将所述预制上柱1吊装至预制下柱2的上方并将两者焊接在一起；(3) hoisting the prefabricated upper column 1 above the prefabricated lower column 2 and welding the two together;
（4）往所述预制上柱1的下部与预制下柱2的上部浇筑水泥基灌浆料5。(4) Pour cement-based grouting material 5 on the lower part of the prefabricated upper column 1 and the upper part of the prefabricated lower column 2 .
在本发明实施例中，在步骤（1）中，在往所述隔板102的上方浇筑上柱混凝土3前，在所述上柱钢管101的内腔焊接一道隔板102，所述隔板102用以承载所浇筑的上柱混凝土3；在往所述隔板102的上方浇筑上柱混凝土3后，在所述上柱钢管101的隔板102的下部开设有两个用以出气、流出水泥基灌浆料5的出气孔104，在所述下柱钢管201的上部开设灌浆孔203。In the embodiment of the present invention, in step (1), before pouring the upper column concrete 3 above the upper column steel pipe 101, a separator 102 is welded in the inner cavity of the upper column steel pipe 101, the separator 102 is used to carry the poured upper column concrete 3; after the upper column concrete 3 is poured above the partition plate 102, two holes are provided at the lower part of the partition plate 102 of the upper column steel pipe 101 for air outlet and outflow. The air outlet hole 104 of the cement-based grouting material 5 is provided with a grouting hole 203 on the upper part of the lower column steel pipe 201 .
在本发明实施例中，在步骤（1）中，将得到预制上柱1放倒，为了方便柱间环向焊缝6的施焊，将所述上柱钢管101的底部边缘进行必要剖口。In the embodiment of the present invention, in step (1), the prefabricated upper column 1 is laid down, and in order to facilitate the welding of the circumferential weld 6 between the columns, the bottom edge of the upper column steel pipe 101 is cut necessary .
在本发明实施例中，在步骤（1）中，在所述隔板102的底部环形间隔焊接若干个上纵向加劲肋103，在所述下柱钢管201的内腔上部环形间隔焊接若干个下纵向加劲肋202，在所述上纵向加劲肋103的双侧壁或单侧壁、下纵向加劲肋202的双侧壁或单侧壁均焊接抗剪栓钉7。In the embodiment of the present invention, in step (1), several upper longitudinal stiffeners 103 are welded at annular intervals at the bottom of the partition 102 , and several lower longitudinal stiffeners 103 are welded at annular intervals at the upper part of the inner cavity of the lower column steel pipe 201 . The longitudinal stiffener 202 is welded with shear studs 7 on both side walls or single side walls of the upper longitudinal stiffener 103 and on both side walls or single side wall of the lower longitudinal stiffener 202 .
在本发明实施例中，在步骤（2）中，往所述下柱钢管201的下部浇筑下柱混凝土4至灌浆孔203的位置。In the embodiment of the present invention, in step (2), the lower column concrete 4 is poured on the lower part of the lower column steel pipe 201 to the position of the grouting hole 203 .
在本发明实施例中，在步骤（3）中，将所得到的预制上柱1与预制下柱2养护一周后运至施工现场。In the embodiment of the present invention, in step (3), the obtained prefabricated upper column 1 and prefabricated lower column 2 are cured for one week and then transported to the construction site.
在本发明实施例中，在步骤（3）中，待所述预制下柱2安装定位后，将所述预制上柱1垂直吊起，使所述上柱钢管101套住下纵向加劲肋202的圆弧端，所述上柱钢管101顺着下纵向加劲肋202的伸出部滑入到指定的位置，使所述上柱钢管101与下柱钢管201顶紧。In the embodiment of the present invention, in step (3), after the prefabricated lower column 2 is installed and positioned, the prefabricated upper column 1 is lifted vertically so that the upper column steel pipe 101 covers the lower longitudinal stiffener 202 The upper column steel pipe 101 slides into a designated position along the extension of the lower longitudinal stiffener 202, so that the upper column steel pipe 101 and the lower column steel pipe 201 are tightened.
在本发明实施例中，在步骤（3）中，顺着上柱钢管101底部的剖口进行环向焊缝6的施工，将上柱钢管101与下柱钢管201焊接牢固。In the embodiment of the present invention, in step (3), the construction of the circumferential weld 6 is carried out along the slit at the bottom of the upper column steel pipe 101 , and the upper column steel tube 101 and the lower column steel tube 201 are firmly welded.
在本发明实施例中，在步骤（4）中，采用顶升法由灌浆孔203中灌入水泥基灌浆料5，直至水泥基灌浆料5由出气孔104中流出。In the embodiment of the present invention, in step (4), the cement-based grouting material 5 is poured into the grouting hole 203 by the jacking method until the cement-based grouting material 5 flows out from the air outlet hole 104 .
在本发明实施例中，在步骤（4）中，待水泥基灌浆料5养护一周后将灌浆孔203和出气孔104补平。In the embodiment of the present invention, in step (4), the grouting hole 203 and the air outlet hole 104 are filled up after the cement-based grouting material 5 is cured for one week.
在本发明实施例中，本发明可用于对工期要求比较严格的项目、对施工质量要求较高的建筑，如大型商场和公共建筑，工业化生产可极大地节约工期；由于采用工业化生产，钢管混凝土构件的加工质量较好；在连接区，上纵向加劲肋103、下纵向加劲肋202、抗剪栓钉7、水泥基灌浆料5的配合使用，使其安全储备较高。In the embodiment of the present invention, the present invention can be used for projects with relatively strict construction period requirements and buildings with high construction quality requirements, such as large shopping malls and public buildings, and industrialized production can greatly save construction period; due to the adoption of industrialized production, steel pipe concrete The processing quality of the components is good; in the connection area, the upper longitudinal stiffener 103, the lower longitudinal stiffener 202, the shear stud 7, and the cement-based grouting material 5 are used together to make the safety reserve higher.
本发明不局限于上述最佳实施方式，任何人在本发明的启示下都可以得出其他各种形式的一种自定位装配式钢管混凝土柱间节点及其施工方法。凡依本发明申请专利范围所做的均等变化与修饰，皆应属本发明的涵盖范围。The present invention is not limited to the above-mentioned optimal implementation mode, anyone can obtain other various forms of a self-positioning assembled concrete-filled steel tube inter-column joint and its construction method under the enlightenment of the present invention. All equivalent changes and modifications made according to the patent scope of the present invention shall fall within the scope of the present invention.
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