CN112922153A - Steel pipe concrete beam column connection structure for building - Google Patents
Steel pipe concrete beam column connection structure for building Download PDFInfo
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- CN112922153A CN112922153A CN202110062265.4A CN202110062265A CN112922153A CN 112922153 A CN112922153 A CN 112922153A CN 202110062265 A CN202110062265 A CN 202110062265A CN 112922153 A CN112922153 A CN 112922153A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 291
- 239000010959 steel Substances 0.000 title claims abstract description 291
- 238000010276 construction Methods 0.000 claims abstract description 17
- 230000008261 resistance mechanism Effects 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 71
- 230000002787 reinforcement Effects 0.000 claims description 22
- 238000005452 bending Methods 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 description 13
- 238000005192 partition Methods 0.000 description 12
- 238000010008 shearing Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012946 outsourcing Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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Abstract
本发明公开了一种建筑用钢管混凝土梁柱连接结构，包括钢管混凝土柱和外包U形钢，所述钢管混凝土柱包括上段钢管柱和下段钢管柱，其特征在于：在所述上段钢管柱和下段钢管柱之间设置有抗剪机构，所述抗剪机构包括连接板，所述连接板具有内孔所述内孔边沿焊接有中间钢筒，所述中间钢筒部分向连接板上部伸出位于所述上段钢管柱的内腔之中、部分向连接板下部伸出位于所述下段钢管柱之中，在所述中间钢筒内壁焊接有抗剪力钢筋，所述抗剪力钢筋沿所述中间钢筒的内周壁均与设置有多个，所述抗剪力钢筋分别向上和向下伸出所述中间钢筒，在所述抗剪力钢筋伸出的部分设置有箍筋，所述箍筋沿圆周向设置有多段，每一段箍筋的端部缠绕抗剪力钢筋后向外伸出。
The invention discloses a concrete-filled steel tube beam-column connection structure for construction, which comprises a concrete-filled steel tube column and an outer U-shaped steel. The concrete-filled steel tube column includes an upper-section steel tube column and a lower-section steel tube column. A shear resistance mechanism is arranged between the lower steel pipe columns. The shear resistance mechanism includes a connecting plate. The connecting plate has an inner hole and an intermediate steel cylinder is welded to the edge of the inner hole. The middle steel cylinder partially protrudes to the upper part of the connecting plate. It is located in the inner cavity of the upper steel pipe column, and part of it extends to the lower part of the connecting plate. The inner peripheral wall of the intermediate steel cylinder is provided with a plurality of, and the shear-resisting steel bars protrude upward and downward respectively from the intermediate steel cylinder. The stirrups are arranged in multiple sections along the circumferential direction, and the ends of each section of the stirrups are wound with shear-resisting steel bars and then protrude outwards.
Description
技术领域technical field
本发明涉及建筑领域，尤其涉及钢管混凝土梁柱连接结构。The invention relates to the field of construction, in particular to a beam-column connection structure of concrete filled steel tubes.
背景技术Background technique
在CN105569191A中公开了一种外包钢混凝土组合梁-钢管柱连接节点，并具体公开了：包括有上、下贯通式隔板、钢管柱和侧向连接板，上、下贯通式隔板横向贯穿设置在钢管柱上，上贯通式隔板用于连接负弯矩钢筋，下贯通式隔板与侧向连接板在柱侧形成U形装置，外包钢梁直接放置于U形装置内，上、下贯通式隔板上都设置有浇筑孔和透气孔。上、下贯通式隔板与钢管柱的柱壁之间通过焊接连接；其中上侧隔板位于板顶负弯矩钢筋处，用以支承并焊接负弯矩钢筋，下侧贯通式隔板位于与外包钢梁底板位置对应处，侧向连接板的一端与钢管柱外壁之间通过焊接连接，另一端与下侧贯通式隔板焊接成U形整体装置，用以现场施工时支撑并连接外包钢梁；上、下贯通式隔板形状根据梁柱连接方向与梁柱截面尺寸确定，在连接梁的方向外伸一定距离用以连接，在其余方向宽度仅满足构造要求即可。组合梁的外包钢梁为上翼缘内翻的C形或上翼缘外翻的帽形，直接置于U形整体装置内，外包钢梁的底板和侧腹板与U形整体装置的底板和侧板之间通过高强螺栓连接。上、下贯通式隔板与钢管柱的柱壁之间焊接连接，侧向连接板的侧向与所述钢管柱外壁之间焊接连接，侧向连接板与下贯通式隔板焊接连接。上述专利中采用了两块贯穿钢管柱的隔板，即上贯通式隔板与下贯通式隔板。其上、下贯通式隔板在短距离内将钢管柱分割成三部分，且中间部分非常短。同时需要在中间部分焊接侧向连接板和外包钢梁，之后还要浇筑混凝土。这样一来，钢管柱的中间部分会承受较大的压力，钢管柱的上部分与中间部分以及钢管柱的下部分与中间部分之间不能承受较大的剪力。CN105569191A discloses a steel-concrete composite beam-steel-pipe-column connection node, and specifically discloses: including upper and lower through-type partitions, steel pipe columns and lateral connecting plates, the upper and lower through-type partitions are transverse It is arranged through the steel pipe column. The upper through-type partition is used to connect the negative bending moment steel bars. The lower through-type partition and the lateral connecting plate form a U-shaped device on the column side. The outer steel beam is directly placed in the U-shaped device. , The lower through-type partitions are provided with pouring holes and ventilation holes. The upper and lower through-type diaphragms and the column wall of the steel pipe column are connected by welding; the upper side diaphragm is located at the negative bending moment steel bar on the top of the plate to support and weld the negative bending moment steel bar, and the lower side through-type diaphragm is located at the bottom of the plate. Corresponding to the position of the bottom plate of the outsourcing steel beam, one end of the lateral connecting plate is connected with the outer wall of the steel pipe column by welding, and the other end is welded with the lower through-type partition to form a U-shaped integral device, which is used to support and connect the outsourcing during on-site construction. Steel beams; the shape of the upper and lower through-type partitions is determined according to the beam-column connection direction and the beam-column section size, and extends a certain distance in the direction of the connecting beam for connection, and the width in the other directions only meets the structural requirements. The outer steel beam of the composite beam is a C shape with the upper flange turned inward or a hat shape with the upper flange turned outward, and is directly placed in the U-shaped integral device. The bottom plate and side web of the outer steel beam are the bottom plate of the U-shaped integral device It is connected with the side plate by high-strength bolts. The upper and lower through-type partitions are connected by welding with the column wall of the steel pipe column, the side of the lateral connecting plate is connected by welding with the outer wall of the steel pipe column, and the lateral connecting plate is connected with the lower through-type partition by welding. In the above-mentioned patent, two partitions penetrating the steel pipe column are used, namely the upper through-type partition and the lower through-type partition. The upper and lower through-type diaphragms divide the steel pipe column into three parts within a short distance, and the middle part is very short. At the same time, the lateral connecting plates and the outer steel beams need to be welded in the middle part, and then the concrete will be poured. In this way, the middle part of the steel pipe column will bear a large pressure, and the upper part and the middle part of the steel pipe column and the lower part and the middle part of the steel pipe column cannot bear a large shear force.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于提供一种抗剪能力强的钢管混凝土梁柱连接结构。The purpose of the present invention is to provide a concrete-filled steel tube beam-column connection structure with strong shear resistance.
为了达到上述目的，本发明是这样实现的：一种建筑用钢管混凝土梁柱连接结构，包括钢管混凝土柱和外包U形钢，所述钢管混凝土柱包括上段钢管柱和下段钢管柱，其特征在于：在所述上段钢管柱和下段钢管柱之间设置有抗剪机构，所述抗剪机构包括连接板，所述连接板具有内孔，所述内孔四周的连接板上设置有四个对称的透气孔；所述内孔边沿焊接有中间钢筒，所述中间钢筒部分向连接板上部伸出位于所述上段钢管柱的内腔之中、部分向连接板下部伸出位于所述下段钢管柱之中，在所述中间钢筒内壁焊接有抗剪力钢筋，所述抗剪力钢筋沿所述中间钢筒的内周壁均与设置有多个，所述抗剪力钢筋分别向上和向下伸出所述中间钢筒，在所述抗剪力钢筋伸出的部分设置有箍筋，所述箍筋沿圆周向设置有多段，每一段箍筋的端部缠绕抗剪力钢筋后向外伸出，相邻两段箍筋之间采用钢丝缠绕且向外伸出的部分夹角不超过90°；在所述连接板的上板面与所述中间钢筒的外壁之间以及所述连接板的下板面与所述中间钢筒的外壁之间分别设置有加强结构，所述加强结构为多个且沿周向均与设置，所述加强机构包括与所述连接板上板面或下板面焊接的底板，所述底板一侧与所述中间钢筒外壁相抵，所述加强结构还包括直角梯形状的加强筋，所述直角梯形状的加强筋沿中间钢筒的轴向竖直设置，且直角腰与所述底板焊接、下底与所述中间钢筒的外壁焊接；所述中间钢筒的外径小于所述钢管混凝土柱的内腔的内径，且所述加强结构的径向长度不超过所述中间钢筒的外壁与钢管混凝土柱的内腔的间距，所述箍筋伸出部分的长度不超过所述抗剪力钢筋和钢管混凝土柱的内腔的间距；所述连接板与所述上段钢管柱和下段钢管柱分别焊接，且所述连接板两侧伸出所述钢管混凝土柱，伸出部分分别焊接有负弯矩钢筋，所述外包U形钢焊接在所述下段钢管柱的两相对侧的外壁上且位于所述负弯矩钢筋之下。In order to achieve the above object, the present invention is achieved in this way: a concrete-filled steel tube beam-column connection structure for construction, comprising a concrete-filled steel tube column and an outer U-shaped steel, and the concrete-filled steel tube column includes an upper-section steel tube column and a lower-section steel tube column, and is characterized in that : A shear resistance mechanism is arranged between the upper steel pipe column and the lower steel pipe column, and the shear resistance mechanism includes a connecting plate, the connecting plate has an inner hole, and the connecting plate around the inner hole is provided with four symmetrical The vent hole; the edge of the inner hole is welded with an intermediate steel cylinder, the intermediate steel cylinder partially protrudes to the upper part of the connecting plate and is located in the inner cavity of the upper steel pipe column, and part of the intermediate steel cylinder protrudes to the lower part of the connecting plate and is located in the lower part. Among the steel pipe columns, shear-resisting steel bars are welded on the inner wall of the intermediate steel cylinder, and a plurality of the shear-resisting steel bars are arranged along the inner peripheral wall of the intermediate steel cylinder. The middle steel cylinder is extended downward, and stirrups are arranged at the extended part of the shear-resisting steel bar. The stirrups are arranged in multiple sections along the circumferential direction. Protruding outwards, two adjacent sections of stirrups are wound with steel wires and the included angle of the outwardly extending part does not exceed 90°; between the upper plate surface of the connecting plate and the outer wall of the middle steel cylinder and Reinforcing structures are respectively provided between the lower plate surface of the connecting plate and the outer wall of the intermediate steel cylinder, and the reinforcing structures are multiple and arranged along the circumferential direction. Or a bottom plate welded on the lower plate surface, one side of the bottom plate is in contact with the outer wall of the intermediate steel cylinder, and the reinforcing structure further includes a right-angled trapezoid-shaped reinforcing rib, and the right-angled trapezoidal reinforcing rib is along the axial direction of the intermediate steel cylinder. Vertically arranged, and the right-angle waist is welded to the bottom plate, and the lower bottom is welded to the outer wall of the intermediate steel cylinder; the outer diameter of the intermediate steel cylinder is smaller than the inner diameter of the inner cavity of the concrete-filled steel tube column, and the reinforcing structure The radial length does not exceed the distance between the outer wall of the intermediate steel cylinder and the inner cavity of the concrete-filled steel tubular column, and the length of the extension of the stirrup does not exceed the distance between the shearing steel bar and the inner cavity of the concrete-filled steel tubular column; The connecting plate is welded to the upper steel pipe column and the lower steel pipe column respectively, and the two sides of the connecting plate protrude from the steel pipe concrete column, and the extension parts are respectively welded with negative bending moment steel bars, and the outer U-shaped steel is welded. On the outer walls of the two opposite sides of the lower steel pipe column and below the negative bending moment reinforcement.
进一步的，所述箍筋沿周向分为奇数段。优选的，所述箍筋沿周向分为3-11段。Further, the stirrups are divided into odd-numbered sections along the circumferential direction. Preferably, the stirrups are divided into 3-11 sections along the circumferential direction.
进一步的，设置在连接板上板面的加强结构具有奇数个，设置在连接板下板面的加强结构具有奇数个。优选的，设置在连接板上板面的加强结构具有3-15个，设置在连接板下板面的加强结构具有3-15，且位于上板面的加强结构与位于下板面的加强结构相对设置。Further, there are an odd number of reinforcing structures arranged on the upper surface of the connecting plate, and an odd number of reinforcing structures arranged on the lower surface of the connecting plate. Preferably, there are 3-15 reinforcing structures arranged on the upper surface of the connecting plate, 3-15 reinforcing structures arranged on the lower surface of the connecting plate, and the reinforcing structures located on the upper surface and the reinforcing structures located on the lower surface are Relative settings.
为进一步提高抗剪能力，置在连接板上板面的加强结构与设置在连接板下板面的加强结构数量相同且等于所述箍筋沿圆周分设的段数，置在连接板上板面的加强结构与设置在连接板下板面的加强结构上下相对设置且位于箍筋段的中部。In order to further improve the shear resistance, the number of reinforcing structures placed on the upper surface of the connecting plate is the same as the number of reinforcing structures placed on the lower surface of the connecting plate and equal to the number of segments of the stirrups along the circumference. The reinforcing structure and the reinforcing structure arranged on the lower surface of the connecting plate are arranged up and down opposite to each other and are located in the middle of the stirrup section.
优选的，在相邻两个加强结构之间的连接板上设置有混凝土过孔。Preferably, concrete vias are provided on the connecting plate between two adjacent reinforcing structures.
有益效果：Beneficial effects:
本发明的建筑用钢管混凝土梁柱连接结构，采用抗剪机构，通过抗剪机构上设置的抗剪力钢筋、箍筋以及箍筋向外伸出的部分，能够提高上段钢管柱与下段钢管柱之间的连接强度，能够提高上段钢管柱与下段钢管柱的连接面之间以及连接面附近的抗剪强度，避免连接面处的上段钢管柱和下段钢管柱之间发生断裂和位移。采用单数的箍筋段设计以及小于90°的相邻箍筋的伸出部分的设计，能够便于力的传递，提高抗震性能和抗剪效果。采用单数的加强结构设计以及直梯形状的加强筋的设计能够提高受力强度，提高抗震性和抗剪效果，直角梯形状的加强筋能够将连接面处的受理分散的竖直方向，提高抗剪能力，并且采用抗剪力钢筋不会影响到混凝土的浇筑情况。The concrete-filled steel tube beam-column connection structure of the present invention adopts a shear-resisting mechanism, and the shear-resisting steel bars, stirrups and the parts of the stirrups that are arranged on the shear-resisting mechanism can improve the height of the upper-section steel pipe column and the lower-section steel pipe column. The connection strength between the upper and lower steel pipe columns can improve the shear strength between the connection surfaces of the upper steel pipe column and the lower steel pipe column and near the connection surface, and avoid fracture and displacement between the upper steel pipe column and the lower steel pipe column at the connection surface. Adopting the design of the odd number of stirrup sections and the design of the protruding part of the adjacent stirrups less than 90° can facilitate the transmission of force and improve the seismic performance and shear resistance effect. The use of singular reinforcing structure design and the design of straight trapezoidal reinforcing ribs can improve the mechanical strength, seismic resistance and shear resistance effect. shear capacity, and the use of shear-resistant reinforcement will not affect the pouring of concrete.
附图说明Description of drawings
图1为实施例1和2的钢管混凝土梁柱连接结构爆炸图；1 is an exploded view of the concrete-filled steel tubular beam-column connection structure of
图2为实施例1和2的钢管混凝土梁柱连接结构图；Fig. 2 is the concrete-filled steel tubular beam-column connection structure diagram of
图3为实施例1和2的抗剪机构的俯视图；3 is a top view of the shearing mechanism of
图4为实施例2中钢管混凝土梁柱结构的梁柱截面图。FIG. 4 is a beam-column cross-sectional view of the concrete-filled steel tube beam-column structure in Example 2. FIG.
图5为实施例和实施例2中箍筋段结构示意图。FIG. 5 is a schematic structural diagram of a stirrup section in Example and Example 2. FIG.
标号说明：钢管混凝土柱1、上段钢管柱101、下段钢管柱102、外包U形钢2、抗剪机构3、连接板301、内孔302、透气孔303、中间钢筒304、抗剪力钢筋305、箍筋306、加强结构4、底板401、加强筋402、负弯矩钢筋5、折耳6、下段直角钢7、上段直角钢8。Label description: CFST column 1, upper
具体实施方式Detailed ways
下面结合附图对本发明的具体实施方式作进一步详细的说明，但本发明并不局限于这些实施方式，任何在本实施例基本精神上的改进或代替，仍属于本发明权利要求所要求保护的范围。The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments, and any improvement or substitution in the basic spirit of the present embodiment still belongs to the protection of the claims of the present invention. scope.
实施例1：如图1-3和5所示，一种建筑用钢管混凝土梁柱连接结构，包括钢管混凝土柱1和外包U形钢2，所述钢管混凝土柱包括上段钢管柱101和下段钢管柱102，在所述上段钢管柱和下段钢管柱之间设置有抗剪机构3，所述抗剪机构包括连接板301，所述连接板具有内孔302，所述内孔四周的连接板上设置有四个对称的透气孔303。所述内孔边沿焊接有中间钢筒304，所述中间钢筒部分向连接板上部伸出位于所述上段钢管柱的内腔之中、部分向连接板下部伸出位于所述下段钢管柱之中，在所述中间钢筒内壁焊接有抗剪力钢筋305，所述抗剪力钢筋沿所述中间钢筒的内周壁均与设置有多个，所述抗剪力钢筋分别向上和向下伸出所述中间钢筒，在所述抗剪力钢筋伸出的部分设置有箍筋305，所述箍筋沿圆周向设置有多段，每一段箍筋的端部缠绕抗剪力钢筋后向外伸出，相邻两段箍筋之间采用钢丝缠绕且向外伸出的部分夹角不超过90°；在所述连接板的上板面与所述中间钢筒的外壁之间以及所述连接板的下板面与所述中间钢筒的外壁之间分别设置有加强结构4，所述加强结构为多个且沿周向均与设置，所述加强机构包括与所述连接板上板面或下板面焊接的底板401，所述底板一侧与所述中间钢筒外壁相抵，所述加强结构还包括直角梯形状的加强筋402，所述直角梯形状的加强筋沿中间钢筒的轴向竖直设置，且直角腰与所述底板焊接、下底与所述中间钢筒的外壁焊接；所述中间钢筒的外径小于所述钢管混凝土柱的内腔的内径，且所述加强结构的径向长度不超过所述中间钢筒的外壁与钢管混凝土柱的内腔的间距，所述箍筋伸出部分的长度不超过所述抗剪力钢筋和钢管混凝土柱的内腔的间距；所述连接板与所述上段钢管柱和下段钢管柱分别焊接，且所述连接板两侧伸出所述钢管混凝土柱，伸出部分分别焊接有负弯矩钢筋5，所述外包U形钢焊接在所述下段钢管柱的两相对侧的外壁上且位于所述负弯矩钢筋之下。Embodiment 1: As shown in Figures 1-3 and 5, a concrete-filled steel tube beam-column connection structure for construction includes a concrete-filled steel tube column 1 and an
在本实施例中，所述箍筋沿周向分为奇数段。可选择但不限于3段、5段、7段、9段或者11段。本实施例中，所述箍筋沿周向分为5段，其中，每一段箍筋包括位于中间的弧形部，以及位于两端的套接部，所述套接部具有一个套接圈和一个伸出的剪力端，所述套接圈与所述剪力端是通过箍筋的端部向内完全之后形成的，所述套接圈用于套在所述抗剪力钢筋上。相邻两端箍筋的端部套在同一条抗剪力钢筋上，并且两个伸出的剪力端均朝向外伸出(此处的外是指向箍筋形成的圈外)，其中左侧的箍筋的剪力端向右侧伸出，右侧箍筋的剪力端向左侧伸出。并且相邻的两个剪力端之间的夹角不超过90°，优选为45-90°，本实施例中采用60°。并且所述箍筋沿轴线设置有多个。In this embodiment, the stirrups are divided into odd-numbered segments in the circumferential direction. It can be selected but not limited to 3, 5, 7, 9 or 11 segments. In this embodiment, the stirrups are divided into 5 sections along the circumferential direction, wherein each section of the stirrups includes an arc-shaped part located in the middle and a socket part located at both ends, and the socket part has a socket ring and A protruding shear end, the ferrule and the shear end are formed after the end of the stirrup is completely inwardly formed, and the ferrule is used to be sleeved on the shear reinforcement. The ends of the stirrups at the two adjacent ends are sheathed on the same shearing steel bar, and the two protruding shearing ends are protruding outward (the outer here refers to the outside of the circle formed by the stirrups). The shear end of the stirrup on the side protrudes to the right, and the shear end of the stirrup on the right protrudes to the left. And the included angle between two adjacent shearing ends is not more than 90°, preferably 45-90°, and 60° is adopted in this embodiment. And a plurality of the stirrups are arranged along the axis.
在本实施例中，设置在连接板上板面的加强结构具有奇数个，设置在连接板下板面的加强结构也具有奇数个。设置在连接板上板面的加强结构具有3-15个，可选择但不限于3个、5个、7个、9个、11个、13个或15个，设置在连接板下板面的加强结构具有3-15，可选择但不限于3个、5个、7个、9个、11个、13个或15个。且位于上板面的加强结构与位于下板面的加强结构数量可相同也可不相同。在本实施例中，位于上板面的加强结构与位于下板面的加强结构数量相同均为5个且上下相对设置。在本实施例中，所述加强结构设置在每一段箍筋段的中部，能提高抗剪强度。所述加强结构的底板为类三角形，所述底板的与中间钢筒外壁焊接的一侧为弧形，向中间钢筒外伸出的部分逐渐变窄。In this embodiment, there are an odd number of reinforcing structures arranged on the upper surface of the connecting plate, and an odd number of reinforcing structures arranged on the lower surface of the connecting plate. There are 3-15 reinforcing structures arranged on the upper surface of the connecting plate, which can be selected but not limited to 3, 5, 7, 9, 11, 13 or 15. There are 3-15 reinforcement structures, with a choice of but not limited to 3, 5, 7, 9, 11, 13 or 15. In addition, the number of reinforcement structures located on the upper panel surface and the number of reinforcement structures located on the lower panel surface may be the same or different. In this embodiment, the number of the reinforcing structures located on the upper panel surface and the number of reinforcing structures located on the lower panel surface are the same as five, and they are arranged opposite each other up and down. In this embodiment, the reinforcing structure is arranged in the middle of each stirrup section, which can improve the shear strength. The bottom plate of the reinforcing structure is triangular-like, the side of the bottom plate welded with the outer wall of the middle steel cylinder is arc-shaped, and the part protruding out of the middle steel cylinder is gradually narrowed.
作为本实施例中的另一实施方式，在相邻两个加强结构之间的连接板上设置有混凝土过孔。采用这样的方式，能够更加便利与混凝土的浇筑。As another implementation in this embodiment, concrete vias are provided on the connecting plate between two adjacent reinforcing structures. In this way, the pouring of concrete can be more convenient.
另外，所述连接板的两侧伸出所述钢管混凝土柱，且所述连接板的上板面与所述上段钢管柱的外壁焊接，所述连接板的下板面与所述下段钢管柱的外壁焊接，所述连接板的两侧伸出部分上焊接有负弯矩钢筋5；在所述连接板的两侧伸出部分的下方的下段钢管柱的外壁上分别焊接有所述外包U形钢。In addition, both sides of the connecting plate protrude from the concrete-filled steel tubular column, and the upper surface of the connecting plate is welded with the outer wall of the upper steel pipe column, and the lower surface of the connecting plate is connected to the lower steel pipe column. The outer wall of the connecting plate is welded, and the negative bending moment steel bars 5 are welded on the protruding parts of both sides of the connecting plate; shaped steel.
一种建筑用钢管混凝土梁柱连接结构的施工方法，包括以下方法：A construction method for a concrete-filled steel tube beam-column connection structure for buildings, comprising the following methods:
第一步：在工厂内预制所述抗剪机构，(1)在所述连接板上冲压所述内孔和透气孔；(2)在所述中间钢筒内焊接所述抗剪力钢筋，然后预制所述箍筋段，并将箍筋安装到所述抗剪力钢筋上，采用钢丝将抗剪力钢筋段绑紧；(3)将所述中间钢筒安装到所述连接板上的内孔中并进行焊接；(4)将所述加强结构的底板与所述中间钢筒和连接板进行焊接，再将所述直角梯形状的加强筋焊接在所述底板与中间钢筒的外壁上；The first step: prefabricating the shear resistance mechanism in the factory, (1) punching the inner hole and the ventilation hole on the connecting plate; (2) welding the shear resistance steel bar in the intermediate steel cylinder, Then prefabricate the stirrup sections, install the stirrups on the shear-resistant steel bars, and use steel wires to fasten the shear-resistant steel bar sections; (3) Install the intermediate steel cylinder on the connecting plate (4) Weld the bottom plate of the reinforcing structure with the intermediate steel cylinder and the connecting plate, and then weld the right-angled trapezoidal reinforcing rib on the bottom plate and the outer wall of the intermediate steel cylinder superior;
第二步：在施工场地，(1)将所述外包U形钢焊接在所述下段钢管柱的相对的两个侧壁上，(2)将所述抗剪机构的上设置的中间钢筒和抗剪力钢筋分别套入所述下段钢管柱与上段钢管柱的内腔之中，焊接所述连接板与所述上段钢管柱的外壁，焊接所述连接板与所述下段钢管柱的外壁，在所述连接板伸出的部分焊接负弯矩钢筋。The second step: at the construction site, (1) welding the outer U-shaped steel on the opposite two side walls of the lower steel pipe column, (2) welding the middle steel cylinder on the upper part of the shearing mechanism and shear steel bars are respectively sleeved into the inner cavities of the lower steel pipe column and the upper steel pipe column, welding the connecting plate and the outer wall of the upper steel pipe column, welding the connecting plate and the outer wall of the lower steel pipe column , Weld the negative bending moment steel bar on the protruding part of the connecting plate.
本实施例的建筑用钢管混凝土梁柱连接结构，采用抗剪机构，通过抗剪机构上设置的抗剪力钢筋、箍筋以及箍筋向外伸出的部分，能够提高上段钢管柱与下段钢管柱之间的连接强度，能够提高上段钢管柱与下段钢管柱的连接面之间以及连接面附近的抗剪强度，避免连接面处的上段钢管柱和下段钢管柱之间发生断裂和位移。采用单数的箍筋段设计以及小于90°的相邻箍筋的伸出部分的设计，能够便于力的传递，提高抗震性能和抗剪效果。采用单数的加强结构设计以及直梯形状的加强筋的设计能够提高受力强度，提高抗震性和抗剪效果，直角梯形状的加强筋能够将连接面处的受理分散的竖直方向，提高抗剪能力，并且采用抗剪力钢筋不会影响到混凝土的浇筑情况。The concrete-filled steel tube beam-column connection structure for construction in this embodiment adopts a shear-resisting mechanism, and the shear-resisting steel bars, stirrups and the part of the stirrups that are set on the shear-resisting mechanism can improve the height of the upper steel pipe column and the lower steel pipe. The connection strength between the columns can improve the shear strength between the connection surfaces of the upper steel pipe column and the lower steel pipe column and near the connection surface, and avoid fracture and displacement between the upper steel pipe column and the lower steel pipe column at the connection surface. Adopting the design of the odd number of stirrup sections and the design of the protruding part of the adjacent stirrups less than 90° can facilitate the transmission of force and improve the seismic performance and shear resistance effect. The use of singular reinforcing structure design and the design of straight trapezoidal reinforcing ribs can improve the mechanical strength, seismic resistance and shear resistance effect. shear capacity, and the use of shear-resistant reinforcement will not affect the pouring of concrete.
实施例2：如图1-5所示，一种建筑用钢管混凝土梁柱连接结构，包括钢管混凝土柱1和外包U形钢2，所述钢管混凝土柱包括上段钢管柱101和下段钢管柱102，在所述上段钢管柱和下段钢管柱之间设置有抗剪机构3，所述抗剪机构包括连接板301，所述连接板具有内孔302，所述内孔四周的连接板上设置有四个对称的透气孔303。所述内孔边沿焊接有中间钢筒304，所述中间钢筒部分向连接板上部伸出位于所述上段钢管柱的内腔之中、部分向连接板下部伸出位于所述下段钢管柱之中，在所述中间钢筒内壁焊接有抗剪力钢筋305，所述抗剪力钢筋沿所述中间钢筒的内周壁均与设置有多个，所述抗剪力钢筋分别向上和向下伸出所述中间钢筒，在所述抗剪力钢筋伸出的部分设置有箍筋305，所述箍筋沿圆周向设置有多段，每一段箍筋的端部缠绕抗剪力钢筋后向外伸出，相邻两段箍筋之间采用钢丝缠绕且向外伸出的部分夹角不超过90°；在所述连接板的上板面与所述中间钢筒的外壁之间以及所述连接板的下板面与所述中间钢筒的外壁之间分别设置有加强结构4，所述加强结构为多个且沿周向均与设置，所述加强机构包括与所述连接板上板面或下板面焊接的底板401，所述底板一侧与所述中间钢筒外壁相抵，所述加强结构还包括直角梯形状的加强筋402，所述直角梯形状的加强筋沿中间钢筒的轴向竖直设置，且直角腰与所述底板焊接、下底与所述中间钢筒的外壁焊接；所述中间钢筒的外径小于所述钢管混凝土柱的内腔的内径，且所述加强结构的径向长度不超过所述中间钢筒的外壁与钢管混凝土柱的内腔的间距，所述箍筋伸出部分的长度不超过所述抗剪力钢筋和钢管混凝土柱的内腔的间距；所述连接板与所述上段钢管柱和下段钢管柱分别焊接，且所述连接板两侧伸出所述钢管混凝土柱，伸出部分分别焊接有负弯矩钢筋5，所述外包U形钢焊接在所述下段钢管柱的两相对侧的外壁上且位于所述负弯矩钢筋之下。Embodiment 2: As shown in Figures 1-5, a CFST beam-column connection structure for construction includes CFST column 1 and an outer
在本实施例中，所述箍筋沿周向分为奇数段。可选择但不限于3段、5段、7段、9段或者11段。本实施例中，所述箍筋沿周向分为5段，其中，每一段箍筋包括位于中间的弧形部，以及位于两端的套接部，所述套接部具有一个套接圈和一个伸出的剪力端，所述套接圈与所述剪力端是通过箍筋的端部向内完全之后形成的，所述套接圈用于套在所述抗剪力钢筋上。相邻两端箍筋的端部套在同一条抗剪力钢筋上，并且两个伸出的剪力端均朝向外伸出(此处的外是指向箍筋形成的圈外)，其中左侧的箍筋的剪力端向右侧伸出，右侧箍筋的剪力端向左侧伸出。并且相邻的两个剪力端之间的夹角不超过90°，优选为45-90°，本实施例中采用60°。并且所述箍筋沿轴线设置有多个。In this embodiment, the stirrups are divided into odd-numbered segments in the circumferential direction. It can be selected but not limited to 3, 5, 7, 9 or 11 segments. In this embodiment, the stirrups are divided into 5 sections along the circumferential direction, wherein each section of the stirrups includes an arc-shaped part located in the middle and a socket part located at both ends, and the socket part has a socket ring and A protruding shear end, the ferrule and the shear end are formed after the end of the stirrup is completely inwardly formed, and the ferrule is used to be sleeved on the shear reinforcement. The ends of the stirrups at the two adjacent ends are sheathed on the same shearing steel bar, and the two protruding shearing ends are protruding outward (the outer here refers to the outside of the circle formed by the stirrups). The shear end of the stirrup on the side protrudes to the right, and the shear end of the stirrup on the right protrudes to the left. And the included angle between two adjacent shearing ends is not more than 90°, preferably 45-90°, and 60° is adopted in this embodiment. And a plurality of the stirrups are arranged along the axis.
在本实施例中，设置在连接板上板面的加强结构具有奇数个，设置在连接板下板面的加强结构也具有奇数个。设置在连接板上板面的加强结构具有3-15个，可选择但不限于3个、5个、7个、9个、11个、13个或15个，设置在连接板下板面的加强结构具有3-15，可选择但不限于3个、5个、7个、9个、11个、13个或15个。且位于上板面的加强结构与位于下板面的加强结构数量可相同也可不相同。在本实施例中，位于上板面的加强结构与位于下板面的加强结构数量相同均为5个且上下相对设置。在本实施例中，所述加强结构设置在每一段箍筋段的中部，能提高抗剪强度。所述加强结构的底板为类三角形，所述底板的与中间钢筒外壁焊接的一侧为弧形，向中间钢筒外伸出的部分逐渐变窄。In this embodiment, there are an odd number of reinforcing structures arranged on the upper surface of the connecting plate, and an odd number of reinforcing structures arranged on the lower surface of the connecting plate. There are 3-15 reinforcing structures arranged on the upper surface of the connecting plate, which can be selected but not limited to 3, 5, 7, 9, 11, 13 or 15. There are 3-15 reinforcement structures, with a choice of but not limited to 3, 5, 7, 9, 11, 13 or 15. In addition, the number of reinforcement structures located on the upper panel surface and the number of reinforcement structures located on the lower panel surface may be the same or different. In this embodiment, the number of the reinforcing structures located on the upper panel surface and the number of reinforcing structures located on the lower panel surface are the same as five, and they are arranged opposite each other up and down. In this embodiment, the reinforcing structure is arranged in the middle of each stirrup section, which can improve the shear strength. The bottom plate of the reinforcing structure is triangular-like, the side of the bottom plate welded with the outer wall of the middle steel cylinder is arc-shaped, and the part protruding out of the middle steel cylinder is gradually narrowed.
作为本实施例中的另一实施方式，在相邻两个加强结构之间的连接板上设置有混凝土过孔。采用这样的方式，能够更加便利与混凝土的浇筑。As another implementation in this embodiment, concrete vias are provided on the connecting plate between two adjacent reinforcing structures. In this way, the pouring of concrete can be more convenient.
另外，所述连接板的两侧伸出所述钢管混凝土柱，且所述连接板的上板面与所述上段钢管柱的外壁焊接，所述连接板的下板面与所述下段钢管柱的外壁焊接，所述连接板的两侧伸出部分上焊接有负弯矩钢筋5；在所述连接板的两侧伸出部分的下方的下段钢管柱的外壁上分别焊接有所述外包U形钢。In addition, both sides of the connecting plate protrude from the concrete-filled steel tubular column, and the upper surface of the connecting plate is welded with the outer wall of the upper steel pipe column, and the lower surface of the connecting plate is connected to the lower steel pipe column. The outer wall of the connecting plate is welded, and the negative bending moment steel bars 5 are welded on the protruding parts of both sides of the connecting plate; shaped steel.
在本实施例中，所述外包U形钢具有U形部，所述U形部的顶部设置有向外伸出的折耳6。另外，在本实施例中，所述外包U形钢的左右两侧分别连接有下段直角钢7，所述下段直角钢开口向上向内，所述下段直角钢部分与外包U形钢的折耳焊接、部分与下段钢管柱的外壁焊接。所述上段钢管柱上焊接有与所述下段直角钢对称的且开口向下向内的上段直角钢8，所述上段直角钢与所述上段钢管柱焊接。所述上段直角钢、所述下段直角钢与U形钢限制了钢梁截断的八个角。在本实施例中，所述上段钢管柱内的抗剪力钢筋的高度不低于上段直角钢的高度。In this embodiment, the outer U-shaped steel has a U-shaped portion, and the top of the U-shaped portion is provided with a
一种建筑用钢管混凝土梁柱连接结构的施工方法，包括以下方法：A construction method for a concrete-filled steel tube beam-column connection structure for buildings, comprising the following methods:
第一步：在工厂内预制所述抗剪机构，(1)在所述连接板上冲压所述内孔和透气孔；(2)在所述中间钢筒内焊接所述抗剪力钢筋，然后预制所述箍筋段，并将箍筋安装到所述抗剪力钢筋上，采用钢丝将抗剪力钢筋段绑紧；(3)将所述中间钢筒安装到所述连接板上的内孔中并进行焊接；(4)将所述加强结构的底板与所述中间钢筒和连接板进行焊接，再将所述直角梯形状的加强筋焊接在所述底板与中间钢筒的外壁上；The first step: prefabricating the shear resistance mechanism in the factory, (1) punching the inner hole and the ventilation hole on the connecting plate; (2) welding the shear resistance steel bar in the intermediate steel cylinder, Then prefabricate the stirrup sections, install the stirrups on the shear-resistant steel bars, and use steel wires to fasten the shear-resistant steel bar sections; (3) Install the intermediate steel cylinder on the connecting plate (4) Weld the bottom plate of the reinforcing structure with the intermediate steel cylinder and the connecting plate, and then weld the right-angled trapezoidal reinforcing rib on the bottom plate and the outer wall of the intermediate steel cylinder superior;
第二步：在施工场地，(1)将所述外包U形钢与下段直角钢焊接在所述下段钢管柱的相对的两个侧壁上，(2)将所述上段直角钢焊接在所述上段钢管柱的相对的两个侧壁上，(3)将所述抗剪机构的上设置的中间钢筒和抗剪力钢筋分别套入所述下段钢管柱与上段钢管柱的内腔之中，焊接所述连接板与所述上段钢管柱的外壁，焊接所述连接板与所述下段钢管柱的外壁，在所述连接板伸出的部分焊接负弯矩钢筋。The second step: at the construction site, (1) welding the outer U-shaped steel and the lower right-angle steel on the opposite two side walls of the lower steel pipe column, (2) welding the upper right-angle steel on the On the opposite two side walls of the upper section of the steel pipe column, (3) the middle steel cylinder and the shear force steel bar set on the upper section of the shear resistance mechanism are respectively sleeved into the inner cavity of the lower section of the steel pipe column and the upper section of the steel pipe column. In the process, the connecting plate and the outer wall of the upper steel pipe column are welded, the connecting plate and the outer wall of the lower steel pipe column are welded, and the negative bending moment reinforcement is welded on the extended part of the connecting plate.
本实施例的建筑用钢管混凝土梁柱连接结构，采用抗剪机构，通过抗剪机构上设置的抗剪力钢筋、箍筋以及箍筋向外伸出的部分，能够提高上段钢管柱与下段钢管柱之间的连接强度，能够提高上段钢管柱与下段钢管柱的连接面之间以及连接面附近的抗剪强度，避免连接面处的上段钢管柱和下段钢管柱之间发生断裂和位移。采用单数的箍筋段设计以及小于90°的相邻箍筋的伸出部分的设计，能够便于力的传递，提高抗震性能和抗剪效果。采用单数的加强结构设计以及直梯形状的加强筋的设计能够提高受力强度，提高抗震性和抗剪效果，直角梯形状的加强筋能够将连接面处的受理分散的竖直方向，提高抗剪能力，并且采用抗剪力钢筋不会影响到混凝土的浇筑情况。The concrete-filled steel tube beam-column connection structure for construction in this embodiment adopts a shear-resisting mechanism, and the shear-resisting steel bars, stirrups and the part of the stirrups that are set on the shear-resisting mechanism can improve the height of the upper steel pipe column and the lower steel pipe. The connection strength between the columns can improve the shear strength between the connection surfaces of the upper steel pipe column and the lower steel pipe column and near the connection surface, and avoid fracture and displacement between the upper steel pipe column and the lower steel pipe column at the connection surface. Adopting the design of the odd number of stirrup sections and the design of the protruding part of the adjacent stirrups less than 90° can facilitate the transmission of force and improve the seismic performance and shear resistance effect. The use of singular reinforcing structure design and the design of straight trapezoidal reinforcing ribs can improve the mechanical strength, seismic resistance and shear resistance effect. shear capacity, and the use of shear-resistant reinforcement will not affect the pouring of concrete.
而且本实施例中，通过对T形钢梁截面的8个角进行了限位，保证钢梁与钢柱的连接面更叫可靠，避免在震动时钢梁与钢柱的连接面发生断裂和位移，并且配合所述抗剪机构，能够更加提高梁柱节点的可靠性。Moreover, in this embodiment, the 8 corners of the T-shaped steel beam section are limited to ensure that the connection surface between the steel beam and the steel column is more reliable, and the connection surface between the steel beam and the steel column is prevented from being broken and damaged during vibration. Displacement, and in conjunction with the shear resistance mechanism, the reliability of the beam-column joint can be further improved.
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