CN113957994B - A concrete frame connection node and building structure - Google Patents

Abstract

The application relates to a concrete frame connection node and a building structure, and relates to the technical field of integrated buildings. The connection node includes at least one set of upper and lower integrated mechanisms for connecting two adjacent concrete structural members. Each set of upper and lower integrated mechanisms includes: The connecting piece is used for embedding in the upper concrete structure; the lower connecting piece is used for embedding in the lower concrete structure; the vertical connecting piece is used for connecting the upper connecting piece and the lower connecting piece. When the concrete structure is prefabricated in the factory, the upper and lower connectors have been pre-embedded in the concrete structure, and then the concrete structure is transported to the construction site, the construction site only needs to use the vertical connector to connect the upper through hole and the lower hole. Through holes to realize upper and lower connectors. Compared with traditional connection nodes that require on-site pouring and resulting in a large number of wet processing operations, the connection nodes of the present application can effectively reduce wet processing operations on the construction site.

Description

A concrete frame connection node and building structure

technical field

The application relates to the technical field of integrated buildings, in particular to a concrete frame connection node and a building structure.

Background technique

Integrated buildings, also known as movable or multiple dismantling buildings, its main concept is to prefabricate concrete structural parts in the factory, and process the load-bearing structures represented by steel structures according to the design requirements, and finally can quickly assemble a complete set at the construction site A building model of a house. Integrating the characteristics of detachable, movable and non-damaging buildings has realized the transformation from the "real estate" attribute of the house to the "movable" attribute for thousands of years, and realized the "property" and "real estate" of "real estate" for thousands of years. property" separation.

In the integrated building in the related art, the concrete structural parts have been prefabricated in the factory to reduce the wet processing on the construction site, but the connection nodes used to connect the various concrete structural parts still need to be poured on the construction site, so that the construction site still has relatively large Many wet processing operations.

Contents of the invention

In order to reduce the wet processing work on the construction site, the purpose of this application is to provide a concrete frame connection joint and building construction.

In the first aspect, a concrete frame connection node and a building structure provided by the application adopt the following technical scheme:

A concrete frame connection node, including at least one set of upper and lower integrated mechanisms for connecting two adjacent concrete structural members, each set of upper and lower integrated mechanisms includes:

The upper connecting piece is used for embedding in the upper concrete structure, the upper connecting piece has an upper connecting cavity, and the bottom wall of the upper connecting cavity is provided with an upper through hole;

The lower connecting piece is used for embedding in the lower concrete structure, the lower connecting piece has a lower connecting cavity, and the top wall of the lower connecting cavity is provided with a lower through hole for communicating with the upper through hole;

The vertical connecting piece is used to connect the upper connecting piece and the lower connecting piece, and the vertical connecting piece connects the upper through hole while connecting the lower through hole.

By adopting the above technical scheme, when the concrete structure is prefabricated in the factory, the upper connector and the lower connector have been pre-embedded in the concrete structure, and then after the concrete structure is transported to the construction site, the construction site only needs to use the vertical connector Connect the upper through-hole and the lower through-hole, thereby realizing the upper connector and the lower connector. Compared with traditional connection nodes that require on-site pouring and resulting in a large number of wet processing operations, the connection nodes of the present application can effectively reduce wet processing operations on the construction site.

Optionally, the vertical connecting piece includes a mounting bolt and a nut threadedly connected to the mounting bolt, the rod of the mounting bolt is simultaneously passed through the upper through hole and the lower through hole, and the upper The lower side wall of the connecting piece and the upper side wall of the upper connecting piece are sandwiched between the cap portion of the mounting bolt and the nut.

By adopting the above technical solution, the caps of the mounting bolts cooperate with the nuts to clamp and fix the lower side wall of the upper connecting piece and the upper side wall of the upper connecting piece, thereby completing the stable connection between the upper connecting piece and the lower connecting piece, In order to realize the stable connection of the upper and lower adjacent concrete structural parts, and the connection is simple and stable.

Optionally, the vertical connector further includes a bolt sleeve sheathed on the shank of the installation bolt, the bolt sleeve is located between the cap of the installation bolt and the nut, and the bolt sleeve is simultaneously pierced through the upper through hole and the lower through hole.

By adopting the above technical scheme, the bolt sleeve is first set on the rod of the installation bolt or installed into the upper through hole and the lower through hole at the same time, and then the cap of the installation bolt cooperates with the nut to connect the lower side wall of the upper connector and the upper through hole. The upper side wall of the connector is clamped and fixed, thereby further improving the connection stability between the upper connector and the lower connector, so that the connection between the upper and lower adjacent concrete structural members is more stable.

Optionally, the vertical connecting member further includes an upper backing plate passing through the mounting bolts, the upper backing plate is located in the upper connection cavity, and the caps of the mounting bolts are pressed against the upper backing plate. The backing plate is away from the side of the lower connector, the upper backing plate is pressed against the bottom wall of the upper connection cavity, and the outer ring of the upper backing plate protrudes from the outer edge of the mounting bolt cap;

And/or, the vertical connecting piece further includes a lower backing plate passing through the mounting bolts, the lower backing plate is located in the lower connection cavity, and the nut is pressed against the lower backing plate away from the On one side of the above connecting piece, the lower backing plate is pressed against the top wall of the lower connecting cavity, and the outer ring of the lower backing plate protrudes from the outer edge surface of the nut.

By adopting the above-mentioned technical scheme, the stress when the vertical connector is connected to the upper connector mainly comes from the cap of the mounting bolt, and the outer ring of the upper backing plate protrudes from the outer edge of the cap of the mounting bolt so that the one-sided surface of the upper backing plate The area is larger than the end surface area of the mounting bolt cap, thereby increasing the contact area between the vertical connector and the upper connector, reducing the pressure between the vertical connector and the upper connector to further improve the vertical connector service life.

Correspondingly, when the vertical connector is connected to the lower connector, the force mainly comes from the cap of the mounting bolt, and the outer edge of the lower backing plate protrudes from the outer edge of the nut so that the one-sided area of the lower backing plate is larger than the end surface area of the nut , thereby increasing the contact area between the vertical connector and the lower connector, reducing the pressure between the vertical connector and the lower connector to further improve the service life of the vertical connector.

Optionally, the upper end of the bolt sleeve protrudes upwards from the bottom wall of the upper connection cavity, and the lower surface of the upper backing plate is provided with a lower reverse ridge, and the lower reverse ridge is sleeved on the bolt sleeve The upper end of the upper end is in contact with the outer wall of the bolt sleeve, and the lower end of the lower anti-sill is pressed against the bottom wall of the upper connecting cavity;

When the vertical connector is connected to the lower connector, the force mainly comes from the cap of the mounting bolt. The outer edge of the lower backing plate protrudes from the outer edge of the nut so that the one-sided area of the lower backing plate is larger than the end surface area of the nut, thereby increasing The contact area between the vertical connecting piece and the lower connecting piece is enlarged, and the pressure between the vertical connecting piece and the lower connecting piece is reduced to further improve the service life of the vertical connecting piece.

By adopting the above technical scheme, the lower anti-sill is in contact with the outer wall of the bolt sleeve to increase the contact area between the upper backing plate and the bolt sleeve, and the upper end of the bolt sleeve protrudes upwards from the bottom wall of the upper connection cavity to make the bolt sleeve The contact area between the barrel and the upper connector is maximized. Correspondingly, the upper anti-sill is in contact with the outer wall of the bolt sleeve to increase the contact area between the lower backing plate and the bolt sleeve, and the lower end of the bolt sleeve protrudes downwards from the top wall of the lower connection cavity so that the bolt sleeve and the bolt sleeve are in contact with each other. The contact area between the lower connectors is maximized. As a result, the pressure of the bolt sleeve is reduced when it is subjected to the reverse force from the upper connector and the reaction force from the lower connector, thereby further improving the safety of the connection node during use and reducing the pressure on the connection node. fatigue damage.

Optionally, the upper and lower integration mechanism also includes a shear-resistant structure, the shear-resistant structure includes a shear-resistant block and a shear-resistant seat, and the shear-resistant block extends vertically and has a connecting end and a protruding end, the anti-shear seat is provided with an anti-shear groove for plugging and matching with the protruding end of the anti-shear block;

When the anti-shear block is fixedly arranged on the side wall on the horizontal side of the lower connecting piece, the anti-shear seat is fixedly arranged on the corresponding side wall of the upper connecting piece;

When the anti-shear block is fixedly arranged on the side wall on the horizontal side of the upper connecting piece, the anti-shear seat is fixedly arranged on the corresponding side wall of the lower connecting piece.

By adopting the above-mentioned technical scheme, when the upper connecting piece and the lower connecting piece are connected, the anti-shearing block is embedded in the anti-shearing groove of the anti-shearing seat, so as to further limit possible damage between the upper connecting piece and the lower connecting piece in the horizontal direction. At the same time, the connection area of the connection node in the horizontal direction is increased, thereby further improving the shear resistance of the connection node of the present application.

Optionally, the section of the anti-shear block is polygonal, circular or elliptical, and the shape of the anti-shear groove matches the shape of the anti-shear block.

By adopting the above-mentioned technical scheme, when it is arranged in a polygonal shape, the existence of the edge of the anti-shear block and the cooperation of the anti-shear groove restrict the relative rotation, so that after the connection between the upper and lower connectors, the connection between the upper and lower connectors can be further restricted. A deflection occurs between the lower connecting parts, thereby further increasing the stability of the connection between the upper connecting part and the lower connecting part.

When it is arranged in a circular shape, the transverse shear force received by the outer circular surface of the shear block is easily dispersed by the outer circular surface, thereby improving the shear resistance of the shear block, thereby further improving the connection between the upper connecting piece and the lower connection. Stability when connecting parts.

When it is set in an ellipse, the outer edge of the anti-shear block has an arc-shaped characteristic so that the anti-shear block can disperse the transverse shearing force, and the anti-shear block has the characteristics of a long axis and a short axis to make the anti-shear block The shear block also has the function of restricting the rotation of the quadrilateral, so that when the upper connector and the lower connector are connected, it can not only improve the shear resistance but also restrict the rotation, thereby further improving the stability of the connection between the upper connector and the lower connector sex.

Optionally, the number of the upper and lower integration mechanisms is at least two, and the connection node further includes a connecting plate for connecting a plurality of the upper and lower integration mechanisms, and the connecting plate is interposed between the upper connecting piece and the Between the connecting pieces, the connecting plate is provided with a plurality of connecting holes through which the shanks of the mounting bolts pass, and each group of upper and lower integrated mechanisms corresponds to one of the connecting holes.

By adopting the above technical scheme, the mounting bolts of each group of upper and lower integrated mechanisms are correspondingly pierced with a connecting hole, so that multiple sets of upper and lower connectors are connected to the same connecting plate, so as to realize the connection of multiple upper and lower integrated mechanisms Stabilized to stabilize connections between concrete structural members on the same level.

Optionally, the upper end of the opening of the upper connecting chamber has rounded corners or is arched, the upper end of the opening of the lower connecting chamber has rounded corners or is arched, and the shape of the opening of the upper connecting chamber is the same as that of the upper connecting chamber. The shape of the opening of the connection cavity described below is different.

By adopting the above technical scheme, the setting of rounded corners relieves the stress concentration at the corners of the upper opening of the upper connection chamber and the corner of the upper opening of the lower connection chamber. The ability of the shape to disperse stress and the ability of the triangle to resist deformation, thereby further improving the deformation resistance of the upper and lower connectors when they are subjected to external pressure. The opening shape of the lower connecting chamber 121 is different from that of the upper connecting chamber 111 to reduce the workload required for distinguishing the concrete structural parts during installation and reduce the phenomenon of concrete structural parts being reversed.

In the second aspect, a concrete frame connection node and a building structure provided by the application adopt the following technical scheme:

A building structure includes a plurality of horizontally distributed and/or vertically distributed concrete structural parts, and adjacent concrete structural parts are connected through the above-mentioned connection nodes.

By adopting the above technical scheme, the upper connector and the lower connector of the connection node have been made in the concrete structure when the concrete structure is prefabricated, and the construction site only needs to use installation bolts and nuts for connection, thereby effectively reducing the construction site. wet work.

In summary, the present application includes at least one of the following beneficial technical effects:

When the concrete structure is prefabricated in the factory, the upper connector and the lower connector have been embedded in the concrete structure in advance, and then the concrete structure is transported to the construction site, and the construction site only needs to use the vertical connector to connect the upper through hole and the lower hole. Through holes to realize upper and lower connectors. Compared with traditional connection nodes that require on-site pouring and resulting in a large number of wet processing operations, the connection nodes of this application can effectively reduce the wet processing operations on the construction site;

The cap of the mounting bolt and the nut cooperate to clamp and fix the lower side wall of the upper connecting piece and the upper side wall of the upper connecting piece, thereby completing the stable connection between the upper connecting piece and the lower connecting piece, so as to realize the upper and lower adjacent two The stable connection of a concrete structure, and the connection is simple and stable;

The bolt sleeve is first sleeved on the shaft of the mounting bolt or installed into the upper through hole and the lower through hole at the same time, and then the cap of the mounting bolt and the nut cooperate to connect the lower side wall of the upper connecting piece with the upper side wall of the upper connecting piece Clamping and fixing, thereby further improving the connection stability between the upper connecting piece and the lower connecting piece, so that the connection between the upper and lower adjacent two concrete structural members is more stable;

The mounting bolts of each set of upper and lower integrated mechanisms correspond to a connecting hole, so that multiple sets of upper and lower connectors are connected to the same connecting plate, so as to realize the stable connection between multiple upper and lower integrated mechanisms, so that the same level The connection between the concrete structural members on the layer is stable.

Description of drawings

Fig. 1 is a schematic diagram of the installation position of Embodiment 1 of the present application;

Fig. 2 is a schematic diagram showing the exploded structure of the vertical connector in Embodiment 1 of the present application;

Fig. 3 is a schematic diagram of an explosion structure showing a shear-resistant structure in Embodiment 1 of the present application;

Fig. 4 is a schematic diagram of the explosion structure of Embodiment 2 of the present application;

FIG. 5 is a schematic cross-sectional structure diagram of Embodiment 2 of the present application.

In the figure, a, concrete structure; 01, bottom plate; 02, frame column; 03, frame beam; 04, roof; b, connecting node; 1, upper and lower integrated mechanism; 11, upper connecting piece; 111, upper connecting cavity; 112, upper through hole; 12, lower connecting piece; 121, lower connecting cavity; 122, lower through hole; 13, vertical connecting piece; 131, mounting bolt; 132, nut; 133, bolt sleeve; 134, upper gasket Plate; 1341, lower anti-sill; 135, lower backing plate; 1351, upper anti-sill; 136, collar; 14, anti-shear structure; 141, anti-shear block; 142, anti-shear seat; 1421, anti-shear Grooving; 15, rib plate; 2, connecting plate; 21, connecting hole; 22, auxiliary reinforcement hole.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-5.

The embodiment of the present application discloses a building structure. The building structure can reduce the wet processing on the construction site by completing the installation of the part of the structure connecting the nodes when the concrete structure is prefabricated.

Embodiment one:

A building structure includes a plurality of horizontally distributed and/or vertically distributed concrete structural elements a, and adjacent concrete structural elements a are connected by connection nodes b. The number of concrete structural parts a that can be connected by a single connection node b is an even number, and the maximum number is eight. In this embodiment, for the convenience of drawing, the number of concrete structural parts a is four, and the four concrete structural parts a are divided into two layers in the vertical direction, and two layers are distributed in the horizontal direction.

The concrete structural part a is generally arranged in the shape of a rectangular box. Each concrete structural member a includes a bottom plate 01 , frame columns 02 , frame beams 03 and a roof plate 04 . The bottom plate 01 is generally rectangularly arranged to have a longitudinal direction and a lateral direction. The number of frame columns 02 and the number of frame beams 03 are both four, and the four frame columns 02 are respectively arranged on the four peripheral corners of the upper surface of the bottom plate 01 . The frame beam 03 connects the upper ends of two adjacent frame columns 02 , and the four frame beams 03 are connected end to end to form a rectangular frame, so that the four frame beams 03 enclose to form an upper opening. The top plate 04 is simultaneously connected with the upper ends of the four frame beams 03 to close the upper opening. The bottom plate 01, the frame columns 02, the frame beams 03 and the top plate 04 are all provided with pre-embedded steel bars. According to actual production needs, two adjacent frame beams 03 can also be provided with a partition wall. .

Referring to FIG. 2 , the connection node includes at least one set of upper and lower integration mechanisms 1 for connecting two adjacent concrete structures up and down. When the number of upper and lower integration mechanisms 1 is greater than two groups, multiple upper and lower integration mechanisms 1 are connected through the connecting plate 2 . In this embodiment, the number of concrete structural parts is four, so the number of upper and lower integration mechanisms 1 is two, and two groups of upper and lower integration mechanisms 1 are distributed along the horizontal direction and arranged symmetrically.

Continuing to refer to FIG. 2 , each group of upper and lower integration mechanisms 1 includes an upper connector 11 pre-embedded in the upper concrete structure and a lower connector 12 pre-embedded in the lower concrete structure. The upper connector 11 and the lower connector 12 pass through the vertical Connect to connector 13. The concrete structure is usually provided with steel bars, and the upper connecting piece 11 and the lower connecting piece 12 are welded to the corresponding steel bars.

Specifically, the vertical connector 13 includes a mounting bolt 131 and a nut 132 threadedly connected to the shaft of the mounting bolt 131. The shaft of the mounting bolt 131 is sleeved with an upper backing plate 134 and a lower backing plate 135, and the upper backing plate 134 and The lower backing plates 135 are located on the side of the nut 132 close to the cap of the mounting bolt 131 . Both the upper backing plate 134 and the lower backing plate 135 are arranged in an annular sheet shape. The inner diameter of the upper backing plate 134 is slightly larger than the diameter of the mounting bolt 131, so that the gap fits between the upper backing plate 134 and the rod of the mounting bolt 131, and the outer ring of the upper backing plate 134 protrudes from the outer edge of the cap of the mounting bolt 131 , so that the one-sided area of the upper backing plate 134 is greater than the end surface area of the cap of the mounting bolt 131 . The inner diameter of the lower backing plate 135 is slightly larger than the diameter of the mounting bolt 131, so that the gap fits between the lower backing plate 135 and the rod of the mounting bolt 131, and the outer ring of the lower backing plate 135 protrudes from the outer edge of the nut 132, so that The one-sided area of the lower backing plate 135 is larger than the end surface area of the nut 132 .

The upper connecting piece 11 is arranged in a rectangular box, so that the upper connecting piece 11 has an upper connecting cavity 111 therein. The opening of the upper connection chamber 111 faces to the horizontal side. The size of the upper connecting cavity 111 can allow the mounting bolts 131 to be placed into the upper connecting cavity 111 along the vertical direction. The upper end of the opening of the upper connecting cavity 111 is arranged in an arched shape. The inner wall of the upper connection chamber 111 can be fixed with ribs 15 to reinforce the upper connection chamber 111 .

The lower connector 12 is arranged in a rectangular box, and the shape and size of the lower connector 12 are similar to those of the upper connector 11 . The lower connecting member 12 has a lower connecting cavity 121 inside, and the size of the lower connecting cavity 121 can allow the nut 132 to be placed into the upper connecting cavity 111 . The upper end of the opening of the lower connection cavity 121 can be set in an arched shape similar to the upper end of the opening of the upper connection cavity 111 , or it can be a regular rectangle with chamfered corners. The inner wall of the lower connecting chamber 121 may also be fixedly provided with ribs 15 to reinforce the lower connecting chamber 121 . In this embodiment, the opening shape of the lower connecting chamber 121 is different from that of the upper connecting chamber 111 to reduce the workload required for distinguishing the concrete structural parts during installation and to reduce the phenomenon of reversed installation of the concrete structural parts.

In order to facilitate the connection between the upper connecting piece 11 and the lower connecting piece 12, the bottom wall of the upper connecting chamber 111 is provided with an upper through hole 112, and the upper through hole 112 runs through the lower wall of the upper connecting piece 11 in the vertical direction, correspondingly, The top wall of the lower connecting chamber 121 is provided with a lower through hole 122 for communicating with the upper through hole 112 , and the lower through hole 122 vertically penetrates the upper wall of the lower connecting member 12 . The axis of the upper through hole 112 is substantially coincident with the axis of the lower through hole 122 .

When the upper connecting piece 11 and the lower connecting piece 12 are connected, the rod portion of the mounting bolt 131 passes through the upper through hole 112 and the lower through hole 122 at the same time, and the cap portion of the mounting bolt 131 and the upper backing plate 134 are located in the upper connecting cavity 111 , while the nut 132 and the lower backing plate 135 are both located in the lower connecting cavity 121 . At this time, the caps of the mounting bolts 131 are pressed against the side of the upper backing plate 134 away from the lower connector 12, so that the upper backing plate 134 is pressed against the bottom wall of the upper connecting cavity 111, and correspondingly, the nuts 132 are pressed against the bottom wall of the lower connector 12. The backing plate 135 is away from the side of the upper connecting piece 11, so that the lower backing plate 135 is pressed against the top wall of the lower connecting cavity 121, so that the lower side wall of the upper connecting piece 11 and the upper side wall of the upper connecting piece 11 are clamped. between the cap of the mounting bolt 131 and the nut 132 .

Referring to FIG. 3 , in order to improve the shear resistance capacity of the connection node, the upper and lower integration mechanism 1 further includes a shear resistance structure 14 . The anti-shear structure 14 comprises an anti-shear block 141 and an anti-shear seat 142. The anti-shear block 141 extends vertically and has a connecting end and a protruding end. The connecting end of the anti-shear block 141 is used for connecting with the upper connector 11 or lower connector 12 are fixedly connected. The anti-shear seat 142 is provided with an anti-shear slot 1421 , and the anti-shear slot 1421 is used for plugging and fitting with the protruding end of the anti-shear block 141 . The cross-section of the anti-shear block 141 is quadrilateral, circular or elliptical, and the shape of the anti-shear groove 1421 matches the shape of the anti-shear block 141 .

In this embodiment, the anti-shear block 141 is fixedly arranged on the horizontal side wall of the lower connecting member 12 , and the anti-shear seat 142 is fixedly arranged on the corresponding side wall of the upper connecting member 11 . The protruding end of the anti-shear block 141 is the upper end, and the upper end of the anti-shear block 141 protrudes from the upper surface of the lower connecting member 12 .

In another embodiment, the anti-shear block 141 is fixedly arranged on the side wall on the horizontal side of the upper connecting member 11 , and the anti-shear seat 142 is fixedly arranged on the corresponding side wall of the lower connecting member 12 . The protruding end of the anti-shear block 141 is the lower end, and the lower end of the anti-shear block 141 protrudes from the lower surface of the upper connecting member 11 .

Referring to FIG. 2 and FIG. 3 , in order to facilitate the stable connection of the connecting plate 2 to the corresponding multiple upper and lower integrated mechanisms 1 , the connecting plate 2 is clamped between the lower wall of the upper connecting piece 11 and the upper wall of the lower connecting piece 12 . The connection plate 2 is vertically provided with a plurality of connection holes 21 and a plurality of auxiliary reinforcement holes 22 , the connection holes 21 allow the shafts of the mounting bolts 131 to pass through, and the auxiliary reinforcement holes 22 allow the shear resistance blocks 141 to pass through. Each set of upper and lower integration mechanisms 1 corresponds to a connection hole 21 and corresponds to an auxiliary reinforcement hole 22 . Wherein, the axis of the connection hole 21 coincides with the axis of the corresponding upper through hole 112 .

When the upper connecting piece 11 and the lower connecting piece 12 are connected, after the rod portion of the mounting bolt 131 passes through the corresponding upper through hole 112, it needs to first pass through the corresponding connecting hole 21, and then pass through the corresponding lower through hole 122, and The anti-shear block 141 needs to pass through the corresponding auxiliary reinforcement hole 22 first and then be plugged and matched with the corresponding anti-shear groove 1421 .

The implementation principle of Embodiment 1 of the present application is:

(1) Installation of concrete structural parts on the lower floor: install the two concrete structural parts on the lower floor flatly, with the lower connectors 12 on the two concrete structural parts facing upward and close to each other;

(2) Horizontal connection of the lower concrete structural parts: connect the connecting plate 2 to the lower connecting parts 12 of the two concrete structural parts on the lower floor at the same time, the connecting hole 21 on the connecting plate 2 communicates with the corresponding lower through hole 122, and the two lower The anti-shear block 141 on the connecting piece 12 passes through the auxiliary reinforcement hole 22 of the connecting plate 2 to realize the pre-connection of the two lower connecting pieces 12;

(3) Installation of upper concrete structural parts: install two concrete structural parts on the upper layer on the corresponding concrete structural parts of the lower layer, with the upper connecting part 11 facing down and aligned with the corresponding lower connecting part 12, the upper through hole 112 and the connecting The corresponding connecting holes 21 on the board 2 are connected;

(4) The upper connecting piece 11 is connected with the lower connecting piece 12: After the mounting bolt 131 is installed into the upper connecting cavity 111, the rod of the mounting bolt 131 passes through the upper through hole 112, the connecting hole 21 and the lower through hole 122 in turn, and the nut 132 After being installed into the lower connection cavity 121 and threaded with the stem of the mounting bolt 131, turn the nut 132 to move the nut 132 toward the cap of the mounting bolt 131 until the nut 132 and the cap of the mounting bolt 131 are clamped together. The lower wall of the connecting piece 11 and the upper wall of the lower connecting piece 12 .

Embodiment two:

The difference between the second embodiment and the first embodiment lies in the structure of the upper and lower integration mechanism 1 .

Referring to Fig. 4, the connection node includes at least one set of upper and lower integrated mechanisms 1 for connecting two vertically adjacent concrete structures. When the number of upper and lower integration mechanisms 1 is greater than two groups, multiple upper and lower integration mechanisms 1 are connected through the connecting plate 2 . In this embodiment, the number of concrete structural parts is four, so the number of upper and lower integration mechanisms 1 is two, and two groups of upper and lower integration mechanisms 1 are distributed along the horizontal direction and arranged symmetrically.

Continuing to refer to FIG. 4 , each set of upper and lower integration mechanisms 1 includes an upper connector 11 pre-embedded in the upper concrete structure and a lower connector 12 pre-embedded in the lower concrete structure. Connect to connector 13. The concrete structure is usually provided with steel bars, and the upper connecting piece 11 and the lower connecting piece 12 are welded to the corresponding steel bars.

Specifically, the upper connecting piece 11 is arranged in a rectangular box, so that the upper connecting piece 11 has an upper connecting cavity 111 therein. The opening of the upper connection chamber 111 faces to the horizontal side. The upper end of the opening of the upper connecting cavity 111 is arranged in an arched shape. The inner wall of the upper connection chamber 111 can be fixed with ribs 15 to reinforce the upper connection chamber 111 .

The lower connector 12 is arranged in a rectangular box, and the shape and size of the lower connector 12 are similar to those of the upper connector 11 . The lower connecting member 12 has a lower connecting chamber 121 inside. The upper end of the opening of the lower connection cavity 121 can be set in an arched shape similar to the upper end of the opening of the upper connection cavity 111 , or it can be a regular rectangle with chamfered corners. The inner wall of the lower connecting chamber 121 may also be fixedly provided with ribs 15 to reinforce the lower connecting chamber 121 . In this embodiment, the opening shape of the lower connecting chamber 121 is different from that of the upper connecting chamber 111 to reduce the workload required for distinguishing the concrete structural parts during installation and to reduce the phenomenon of reversed installation of the concrete structural parts.

In order to facilitate the connection between the upper connecting piece 11 and the lower connecting piece 12, the bottom wall of the upper connecting chamber 111 is provided with an upper through hole 112, and the upper through hole 112 runs through the lower wall of the upper connecting piece 11 in the vertical direction, correspondingly, The top wall of the lower connecting chamber 121 is provided with a lower through hole 122 for communicating with the upper through hole 112 , and the lower through hole 122 vertically penetrates the upper wall of the lower connecting member 12 . The axis of the upper through hole 112 is substantially coincident with the axis of the lower through hole 122 .

Referring to FIG. 5 , the vertical connector 13 includes a mounting bolt 131 , an upper backing plate 134 , a bolt sleeve 133 , a lower backing plate 135 and a nut 132 . The cap portion of the mounting bolt 131 is located in the upper connecting cavity 111 . The nut 132 is threadedly connected to the rod of the mounting bolt 131 and located in the lower connection cavity 121 . The bolt sleeve 133 is sheathed on the shaft of the mounting bolt 131 and located between the cap of the mounting bolt 131 and the nut 132 . The bolt sleeve 133 is vertically passed through the upper through hole 112 and the lower through hole 122 simultaneously, and the length of the bolt sleeve 133 is greater than the sum of the depth of the upper through hole 112 and the depth of the upper through hole 112, so that the bolt sleeve 133 The upper end protrudes upwards from the bottom wall of the upper connection chamber 111 and the lower end of the bolt sleeve 133 protrudes downwards from the top wall of the lower connection chamber 121 .

The upper backing plate 134 is sheathed on the rod of the mounting bolt 131 and located in the upper connection cavity 111 . The upper backing plate 134 is arranged in the shape of an annular plate, and the axis of the upper backing plate 134 roughly coincides with the axis of the mounting bolt 131 . The outer diameter of the upper backing plate 134 is larger than the diameter of the upper through hole 112 , and the outer ring of the upper backing plate 134 protrudes from the outer edge of the cap of the mounting bolt 131 and the outer edge of the bolt sleeve 133 . The lower surface of the upper backing plate 134 is provided with a lower anti-sill 1341 , which is arranged in a ring shape, and the axis of the lower anti-sill 1341 coincides with the axis of the upper backing plate 134 substantially. The lower anti-sill 1341 is sleeved on the upper end of the bolt sleeve 133, and the lower end of the lower anti-sill 1341 is pressed against the bottom wall of the upper connection cavity 111, and the inner wall of the lower anti-sill 1341 and the bolt sleeve 133 protrude from the bottom wall of the upper connection cavity 111. outer wall contact.

The lower backing plate 135 is sheathed on the rod of the mounting bolt 131 and located in the lower connecting cavity 121 , and the lower backing plate 135 is located on a side of the nut 132 close to the top wall of the lower connecting cavity 121 . The lower backing plate 135 is arranged in the shape of an annular plate, the outer diameter of the lower backing plate 135 is larger than the diameter of the lower through hole 122 , and the axis of the lower backing plate 135 roughly coincides with the axis of the mounting bolt 131 . The outer ring of the lower backing plate 135 protrudes from the outer peripheral surface of the nut 132 and protrudes from the outer peripheral surface of the bolt sleeve 133 . The upper surface of the lower backing plate 135 is provided with an upper anti-sill 1351 , which is arranged in a ring shape, and the axis of the upper anti-sill 1351 and the axis of the lower backing plate 135 roughly coincide. The upper anti-sill 1351 is sleeved on the lower end of the bolt sleeve 133, and the upper end of the upper anti-sill 1351 is pressed against the top wall of the lower connection cavity 121, and the inner wall of the upper anti-sill 1351 and the bolt sleeve 133 protrude from the top wall of the lower connection cavity 121 The outer wall conflicts.

In order to reduce the damage caused by the nut 132 and the upper anti-wall 1351 directly exerting force on the top wall of the lower connection cavity 121 , the upper anti-wall 1351 indirectly presses against the top wall of the lower connection cavity 121 through the collar 136 . Specifically, a collar 136 is sheathed on the lower end of the bolt sleeve 133 , and the collar 136 and the bolt sleeve 133 can be integrally formed. The collar 136 is located in the lower connecting cavity 121 and on a side of the upper anti-wall 1351 close to the top wall of the lower connecting cavity 121 . The outer ring of the collar 136 protrudes beyond the outer ring of the upper anti-sill 1351 to further increase the contact area between the vertical connecting member 13 and the lower connecting member 12 .

When the upper connector 11 and the lower connector 12 are connected, turn the nut 132 so that the nut 132 is close to the cap of the mounting bolt 131, and the cap of the mounting bolt 131 is pressed against the side of the upper backing plate 134 away from the lower connector 12 , the lower anti-wall 1341 of the upper backing plate 134 is pressed against the bottom wall of the upper connection chamber 111, the nut 132 is pressed against the side of the lower backing plate 135 away from the upper connector 11, and the upper anti-wall 1351 of the lower backing plate 135 passes through the collar 136 presses against the top wall of the lower connecting cavity 121 , so that the lower wall of the upper connecting member 11 and the upper wall of the lower connecting member 12 are interposed between the caps of the mounting bolts 131 and the nuts 132 .

Continuing to refer to FIG. 5 , in order to facilitate the use of the connecting plate 2 , the connecting plate 2 is sandwiched between the upper connecting piece 11 and the lower connecting piece 12 . The connection plate 2 is provided with a plurality of connection holes 21 through which the bolt sleeves 133 pass, and each set of upper and lower integration mechanisms 1 corresponds to one connection hole 21 . When the upper connecting piece 11 and the lower connecting piece 12 are connected, the rod portion of the mounting bolt 131 passes through the upper through hole 112 , first passes through the connecting hole 21 , and then passes through the lower through hole 122 .

The implementation principle of Embodiment 2 of the present application is:

(1) Installation of concrete structural parts on the lower floor: install the two concrete structural parts on the lower floor flatly, with the lower connectors 12 on the two concrete structural parts facing upward and close to each other;

(2) Horizontal connection of the lower concrete structural parts: connect the connecting plate 2 to the lower connecting parts 12 of the two concrete structural parts on the lower layer at the same time, and the connecting hole 21 on the connecting plate 2 communicates with the corresponding lower through hole 122;

(3) Installation of upper concrete structural parts: install two concrete structural parts on the upper layer on the corresponding concrete structural parts of the lower layer, with the upper connecting part 11 facing down and aligned with the corresponding lower connecting part 12, the upper through hole 112 and the connecting The corresponding connecting holes 21 on the board 2 are connected;

(4) Connecting the upper connecting piece 11 and the lower connecting piece 12: first, set the bolt sleeve 133 on the shaft of the mounting bolt 131, and then install the bolt sleeve 133 and the mounting bolt 131 together into the upper connecting cavity 111, then install The stem of the bolt 131 passes through the upper through hole 112, the connecting hole 21 and the lower through hole 122 in turn. After the nut 132 is installed into the lower connection cavity 121 and is threaded with the stem of the mounting bolt 131, the nut 132 is rotated so that the nut 132 faces Move in the direction close to the cap of the mounting bolt 131, the cap of the mounting bolt 131 is pressed against the side of the upper backing plate 134 away from the lower connector 12, and the lower anti-wall 1341 of the upper backing plate 134 is pressed against the bottom wall of the upper connecting cavity 111 , the nut 132 is pressed against the side of the lower backing plate 135 away from the upper connecting piece 11, and the upper anti-wall 1351 of the lower backing plate 135 is pressed against the top wall of the lower connecting cavity 121 through the collar 136, so that the lower connecting piece 11 The wall and the upper wall of the lower connector 12 are interposed between the caps of the mounting bolts 131 and the nuts 132 .

The embodiments of this specific embodiment are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly, wherein the same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively. Therefore: all equivalent changes made according to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims (7)

1. A concrete frame connection node, characterized in that, comprises at least one group of up and down integrated mechanisms (1) for connecting two adjacent concrete structures up and down, and each group of up and down integrated mechanisms (1) comprises: The upper connecting piece (11) is used for embedding in the upper concrete structure, the upper connecting piece (11) has an upper connecting cavity (111), and the bottom wall of the upper connecting cavity (111) is provided with an upper through hole (112); The lower connecting piece (12) is used for embedding in the concrete structure below, the lower connecting piece (12) has a lower connecting cavity (121), and the top wall of the lower connecting cavity (121) is provided with a A lower through hole (122) connected to the upper through hole (112); A vertical connector (13), used to connect the upper connector (11) and the lower connector (12), the vertical connector (13) connects the upper through hole (112) while connecting the lower through hole hole(122); The vertical connecting piece (13) includes a mounting bolt (131) and a nut (132) threadedly connected to the mounting bolt (131), and the rod of the mounting bolt (131) is simultaneously installed in the upper channel. hole (112) and the lower through hole (122), the lower side wall of the upper connector (11) and the upper side wall of the upper connector (11) are sandwiched between the mounting bolts (131) between the cap and the nut (132); The vertical connector (13) also includes a bolt sleeve (133) sheathed on the shaft of the installation bolt (131), and the bolt sleeve (133) is located at the cap of the installation bolt (131) and the nut (132), the bolt sleeve (133) is simultaneously passed through the upper through hole (112) and the lower through hole (122); The vertical connector (13) also includes an upper backing plate (134) passing through the mounting bolts (131), the upper backing plate (134) is located in the upper connection cavity (111), the The cap of the mounting bolt (131) is pressed against the side of the upper backing plate (134) away from the lower connector (12), and the upper backing plate (134) is pressed against the upper connection cavity (111) The bottom wall of the upper backing plate (134) protrudes from the outer edge of the cap of the mounting bolt (131); The upper end of the bolt sleeve (133) protrudes upwards from the bottom wall of the upper connection cavity (111), and the lower surface of the upper backing plate (134) is provided with a lower anti-wall (1341), and the lower anti-wall (1341) is sleeved on the upper end of the bolt sleeve (133) and is in contact with the outer wall of the bolt sleeve (133), and the lower end of the lower anti-wall (1341) is pressed against the upper connecting cavity (111 ) bottom wall; The stress when the vertical connector (13) is connected to the lower connector (12) mainly comes from the cap of the mounting bolt (131), and the outer edge of the lower backing plate (135) protrudes beyond the outer edge of the nut (132) to Make the one-sided area of the lower backing plate (135) larger than the end surface area of the nut (132), thereby increasing the contact area between the vertical connector (13) and the lower connector (12), and reducing the vertical connector (13) and the pressure between the lower connector (12) to further improve the service life of the vertical connector (13). 2. A concrete frame connection node according to claim 1, characterized in that, the vertical connector (13) further comprises a lower backing plate (135) pierced through the mounting bolts (131), the The lower backing plate (135) is located in the lower connecting cavity (121), the nut (132) presses against the side of the lower backing plate (135) away from the upper connecting piece (11), the lower backing plate (135) is The backing plate (135) is pressed against the top wall of the lower connecting chamber (121), and the outer ring of the lower backing plate (135) protrudes from the outer edge surface of the nut (132). 3. A concrete frame connection node according to claim 1, characterized in that, the upper and lower integration mechanism (1) also includes a shear-resistant structure (14), and the shear-resistant structure (14) includes a shear-resistant structure (14) Cutting block (141) and anti-shearing seat (142), described anti-shearing block (141) extends along the vertical direction and has connecting end and protruding end, and described anti-shearing seat (142) is provided with and is used for resisting The anti-shear groove (1421) of the protruding end of the shear block (141) is mated; When the anti-shear block (141) is fixedly arranged on the side wall on the horizontal side of the lower connecting piece (12), the anti-shear seat (142) is fixedly arranged on the corresponding side wall of the upper connecting piece (11). on the side walls of the When the anti-shearing block (141) is fixedly arranged on the side wall on the horizontal side of the upper connecting piece (11), the anti-shearing seat (142) is fixedly arranged on the corresponding side wall of the lower connecting piece (12). on the side wall. 4. A concrete frame connection node according to claim 3, characterized in that, the section of the anti-shear block (141) is polygonal, circular or elliptical, and the section of the anti-shear groove (1421) The shape is adapted to the shape of the anti-shear block (141). 5. A concrete frame connection node according to claim 1, characterized in that, the number of the upper and lower integration mechanisms (1) is at least two, and the connection node also includes a plurality of upper and lower integration mechanisms for connecting a plurality of said upper and lower integration mechanisms. The connecting plate (2) of the mechanism (1), the connecting plate (2) is sandwiched between the upper connecting piece (11) and the lower connecting piece (12), and the connecting plate (2) is set through There are a plurality of connecting holes (21) through which the rods of the mounting bolts (131) pass, and each set of upper and lower integrated mechanisms (1) corresponds to one of the connecting holes (21). 6. A concrete frame connection node according to claim 1, characterized in that, the upper end of the opening of the upper connection cavity (111) has rounded corners or is arranged in an arched shape, and the opening of the lower connection cavity (121) The upper end of the upper connection cavity has rounded corners or is arched, and the opening shape of the upper connecting cavity (111) is different from that of the lower connecting cavity (121). 7. A building structure, characterized in that it comprises a plurality of horizontally distributed and/or vertically distributed concrete structural members, and adjacent concrete structural members are connected through the connection node according to any one of claims 1-6.

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