CN113136948A - Assembly type concrete beam column slurry anchor connecting structure with shear keys and assembling method - Google Patents
Assembly type concrete beam column slurry anchor connecting structure with shear keys and assembling method Download PDFInfo
- Publication number
- CN113136948A CN113136948A CN202110616977.6A CN202110616977A CN113136948A CN 113136948 A CN113136948 A CN 113136948A CN 202110616977 A CN202110616977 A CN 202110616977A CN 113136948 A CN113136948 A CN 113136948A
- Authority
- CN
- China
- Prior art keywords
- prefabricated
- connecting piece
- steel
- column
- precast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- 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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/025—Structures with concrete columns
Abstract
The invention discloses an assembly type concrete beam column slurry anchor connecting structure with shear keys and an assembling method, wherein the assembly type concrete beam column slurry anchor connecting structure comprises the following steps: the prefabricated beam is characterized in that prefabricated columns are arranged on two sides of the prefabricated beam respectively, first connecting pieces are arranged on the end faces, facing each other, of one side of the prefabricated beam and one end face of the prefabricated column respectively, and a second connecting piece is arranged between the two oppositely-arranged first connecting pieces so as to connect the two first connecting pieces into a whole to form a prefabricated beam-prefabricated column connecting structure. The prefabricated beam column is connected with the prefabricated beam through the first connecting piece, the first connecting piece is connected with the second connecting piece through the second connecting piece, the third connecting piece is used for fixing, secondary grouting is conducted again, the transmission of the shearing force of the beam-column connecting part is completed, the integrity of the structure is further enhanced, the anti-seismic performance is better, the main process of the prefabricated beam column anchoring and lapping process includes on-site small-area grouting, the integrity of the structure is greatly improved, and the purpose of 'strong joints' is achieved.
Description
Technical Field
The invention relates to the field of prefabricated concrete structure buildings, in particular to a prefabricated concrete beam column slurry anchor connecting structure with shear keys and an assembling method.
Background
The prefabricated concrete structure has the advantages of high construction speed, energy conservation, environmental protection, small field wet operation amount and the like, and is rapidly developed in China in recent years. The assembly type concrete frame structure is one of the main structural forms applied in China at present. How to realize the connection of the precast beam and the precast column is an important technical problem in the fabricated concrete frame structure. In the past, the method of mainly adopting a steel bar sleeve connection and then pouring concrete at the connection part is related to beam-column connection, and has the disadvantages of complex construction, high cost and large wet operation amount. Therefore, in recent years, researchers propose a method for connecting the precast column and the precast beam by using steel, but the connection part is welded on site, so that the construction quality is not easy to guarantee.
In order to improve the two connection technologies, the invention provides an assembly type concrete beam column slurry anchor connection structure with a shear key and an assembling method, wherein a sleeve is not needed when steel bars are connected, welding is not needed when steel plates are connected, the cost is reduced, the construction quality is easy to guarantee, and the structure has the advantages of small wet operation amount, higher node strength and the like.
Disclosure of Invention
The invention aims to provide an assembly type concrete beam column slurry anchor connecting structure with shear keys and an assembling method, which can solve the problems that in the prior art, the cost is high due to the fact that sleeves are needed for steel bar connection, the construction quality is not easy to guarantee due to the fact that field welding is needed for steel connection, the wet operation amount of the structure is small, and the joint strength is high.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an assembly type concrete beam column slurry anchor connecting structure with shear keys, which comprises a precast beam, wherein precast columns are respectively arranged on two sides of the precast beam, first connecting pieces are respectively arranged on the end surfaces of one sides, facing each other, of the precast beam and the precast columns, and a second connecting piece is arranged between the two oppositely arranged first connecting pieces so as to connect the two first connecting pieces into a whole to form a precast beam-precast column connecting structure;
the first connecting piece comprises a first steel plate which is vertically arranged, two strip-shaped rib plates are respectively arranged in parallel at the upper part and the lower part of the near-end face at one side of the first steel plate, slots are formed between the two strip-shaped rib plates and the first steel plate, a first shear-resistant steel plate is respectively arranged on the side wall of the first steel plate between the two slots, and first through holes are formed in the strip-shaped rib plates;
the second connecting piece comprises a second steel plate which is vertically arranged, the end faces of the upper end and the lower end of the second steel plate are respectively provided with a third steel plate which is transversely arranged to form an I-shaped structure, the side wall of the second steel plate between the two third steel plates is respectively provided with a second shear resistant steel plate, and the third steel plate is provided with a second through hole;
the third steel plate of the second connecting piece is embedded in the slot of the first connecting piece, the first through holes and the second through holes correspond to each other one by one, and the third connecting piece is inserted in the first through holes and the second through holes.
The width and height of the first steel plate are 20-30mm smaller than those of the cross section of the precast beam so as to be finally grouted.
Prefabricated post includes first framework of steel reinforcement, first framework of steel reinforcement is including being the vertical atress reinforcing bar in four prefabricated posts of square arranging, four vertical atress reinforcing bar one end tip is equipped with vertical steel sleeve respectively the periphery has prefabricated post stirrup, every along vertical equipartition in four prefabricated posts that are square arranging prefabricated post stirrup of steel reinforcement has been set up on the prefabricated post stirrup and is the prefabricated post lacing wire that the well-shaped was laid.
Prefabricated column cover is equipped with vertical steel bar sleeve's one end and is provided with first ribbing, first ribbing one end overlap joint in vertical steel bar sleeve outer wall, its other end rigid coupling has first connecting piece.
The precast beam includes second framework of steel reinforcement, the second framework of steel reinforcement is including being the horizontal atress reinforcing bar in four precast beams of square arranging, it has the precast beam stirrup to be the horizontal equipartition along the periphery of horizontal atress reinforcing bar in four precast beams of square arranging.
Second rib cage both ends are provided with the second and press the muscle in the precast beam, second rib one end overlap joint in precast beam stirrup, its other end rigid coupling have first connecting piece, the also rigid coupling of first connecting piece has horizontal reinforcing bar in the precast beam simultaneously to increase biography power route, reinforcing beam column connected node wholeness.
The section of the strip rib plate is rectangular.
The strip-shaped rib plates are respectively provided with two first through holes which are arranged side by side, the third steel plate is provided with four second through holes, and the second through holes are arranged side by side in pairs.
The first through hole and the second through hole are both screw holes, the third connecting piece is a bolt, nuts are screwed at two ends of the bolt, and the bolt is a high-strength bolt.
The length of the bolt rod is equal to the thickness of a third steel plate plus two times of the thickness of the strip rib plate plus two times of the thickness of a nut, and the length of the longitudinal stressed steel bar in the prefabricated column, which is located in the vertical steel bar sleeve, is half of the height of the vertical steel bar sleeve of the prefabricated column.
The invention provides an assembling method of an assembly type concrete beam column connecting structure with shear keys, which comprises the following specific steps:
step S1: fabrication of prefabricated columns
S11: manufacturing the first steel bar framework
Arranging longitudinal stress steel bars in four prefabricated columns in a square shape, inserting vertical steel bar sleeves at the upper ends of the longitudinal stress steel bars in the four prefabricated columns, uniformly and vertically arranging prefabricated column stirrups around the longitudinal stress steel bars in the four prefabricated columns in the square arrangement, and erecting prefabricated column tie bars arranged in a well shape on each prefabricated column stirrup;
s12: installing the first connecting piece
Arranging a first pressing rib at one end of the prefabricated column sleeve provided with the vertical steel bar sleeve, wherein one end of the first pressing rib is lapped on the outer wall of the vertical steel bar sleeve, and the other end of the first pressing rib is fixedly connected with the first connecting piece;
s13: pouring concrete
And (3) supporting a template outside the first steel reinforcement framework, pouring concrete, pouring the concrete to the outer side surface fixedly connected with the first connecting piece, and removing the template after the concrete is solidified to finish the manufacturing of the prefabricated column.
Step S2: fabrication of precast beams
S21: making the second steel skeleton
Arranging the transverse stressed steel bars in the four prefabricated beams in a square shape, and transversely and uniformly distributing prefabricated beam stirrups around the transverse stressed steel bars in the four prefabricated beams in the square arrangement;
s22: installing the first connecting piece
Arranging second pressing ribs at two ends of the precast beam, wherein one ends of the second pressing ribs are lapped on the precast beam stirrups, the other ends of the second pressing ribs are fixedly connected with the first connecting piece, and meanwhile, the first connecting piece is also fixedly connected with the transverse steel bars in the precast beam;
s23: pouring concrete
And (3) supporting a template outside the second steel reinforcement framework, pouring concrete, pouring the concrete to the outer side surface fixedly connected with the first connecting piece, and removing the template after the concrete is solidified to finish the manufacturing of the precast beam.
Step S3: assembly of prefabricated columns and prefabricated beams
S31: hoisting prefabricated column and prefabricated beam
Arranging a vertical support at a pre-installation position, hoisting two prefabricated columns and a prefabricated beam in place, wherein the prefabricated beam is positioned between the two prefabricated columns and is lapped on the vertical support;
s32: mounting the second connecting piece
Correspondingly inserting a second connecting piece between the two first connecting pieces correspondingly arranged on the precast columns and the precast beams, namely embedding the third steel plates of the second connecting pieces into slots of the first connecting pieces, wherein the first through holes and the second through holes are in one-to-one correspondence, and the third connecting pieces are inserted into the first through holes and the second through holes to finish the dry connection of the precast columns and the precast beams;
s33: pouring grouting material
And (3) supporting the template outside the connecting end of the first connecting piece and the second connecting piece, pouring grouting material, and removing the template and the vertical support after the grouting material reaches the expected strength to obtain the final assembled concrete beam column slurry anchor connecting structure.
The invention discloses an assembly type concrete beam column slurry anchor connecting structure with shear keys and an assembling method, which have the beneficial effects that:
1. the main procedures of the invention include on-site small-area grouting besides the anchoring and overlapping of the precast beams and columns, which greatly improves the structural integrity and achieves the purpose of 'strong joint'. The grouting material has high strength, can reach the expected strength in about 2 hours, greatly shortens the time required by site construction on a construction site, can greatly improve the construction speed and saves the cost.
2. The structure of the invention is characterized in that the first connecting pieces between the precast columns and the precast beams correspond to each other, the oppositely arranged first connecting pieces are connected through the second connecting pieces, the third connecting pieces are used for fixing, and then secondary grouting is carried out, so that the transmission of the shear force of the beam-column connecting part is completed, the integrity of the structure is further enhanced, and the seismic performance is better.
3. The part with high requirement on manufacturing precision comprises the prefabricated column, the prefabricated beam, the first pressing rib, the second pressing rib, the first connecting piece and the second connecting piece, the third connecting piece and the corresponding matched nut are all completed in a factory, the requirement on difficulty of on-site assembly is not high, the learning cost of constructors can be saved, and the construction efficiency is greatly improved.
4. The force transfer among the components is realized, the first connecting piece is welded with the first pressing rib of the prefabricated column by the prefabricated column part, the first connecting piece is welded with the second pressing rib of the prefabricated beam and the transverse stressed steel bar in the prefabricated beam by the prefabricated beam part, the first pressing rib is welded with the first steel bar framework, the second pressing rib is welded with the second steel bar framework, the two first connecting pieces are connected through the second connecting piece, then the first connecting piece and the second connecting piece are anchored by the third connecting piece, and finally, the secondary grouting is carried out. And all be equipped with the steel sheet that shears on first connecting piece and the second connecting piece, increase the node to atress, the transmission of near one-step completion shear force is more reliable than the single welded seam biography power structure that relies on.
5. The invention adopts a large amount of assembly operation, only a small part of area is subjected to secondary grouting, but the time for the grouting material to reach the expected strength is very short, the time required by the grouting material is greatly shortened compared with the time required by the original cast-in-place operation, and the invention meets the advantages of an assembly type concrete structure such as the development requirements of green buildings with energy conservation, environmental protection, economy and safety and the like.
Drawings
FIG. 1 is a schematic structural view of a first connecting member;
FIG. 2 is a schematic structural view of a second connector;
FIG. 3 is a schematic structural view of a first bead;
FIG. 4 is a schematic structural view of a second bead;
FIG. 5 is a schematic structural view of a third connecting member;
fig. 6 is a schematic structural view of a first steel reinforcement cage;
fig. 7 is a schematic structural view of a first steel skeleton on which a first tie bar and a first connecting member are mounted;
FIG. 8 is a schematic structural view of a prefabricated column;
fig. 9 is a schematic structural view of a second steel reinforcement cage;
fig. 10 is a schematic structural view of a first steel skeleton to which a second reinforcing bar and a first connecting member are attached;
FIG. 11 is a schematic structural view of a precast beam;
FIG. 12 is a first schematic diagram of the assembly process of precast beams and precast columns;
FIG. 13 is a schematic diagram of a second assembling process of precast beams and precast columns;
FIG. 14 is a third schematic view of the assembling process of the precast beams and the precast columns;
FIG. 15 is a fourth schematic view of the assembly process of the precast beams and the precast columns;
fig. 16 is a schematic view of the assembled structure of precast beams and precast columns.
In the figure: 1-vertical steel bar sleeve, 2-first connecting piece, 3-strip rib plate, 4-first shear steel plate, 5-first through hole, 6-second connecting piece, 7-second steel plate, 8-third steel plate, 9-second shear steel plate, 10-first press rib, 11-second press rib, 12-bolt, 13-nut, 14-prefabricated column internal longitudinal stress steel bar, 15-prefabricated column stirrup, 16-prefabricated column tie rib, 17-prefabricated column, 18-prefabricated beam internal transverse stress steel bar, 19-prefabricated beam stirrup, 20-prefabricated beam, 21-supporting piece, 22-grouting section, 23-first steel plate, 24-second through hole, 25-first steel bar framework, 26-second steel bar framework and 27 third connecting piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 16, the fabricated concrete beam-column slurry anchor connecting structure with shear keys provided by the invention comprises a precast beam 20, precast columns 17 are respectively arranged on two sides of the precast beam 20, first connecting pieces 2 are respectively arranged on end surfaces of one sides of the precast beam 20 and the precast columns 17 facing each other, and a second connecting piece 6 is arranged between the two oppositely arranged first connecting pieces 2 so as to connect the two first connecting pieces 2 into a whole to form a precast beam-precast column connecting structure; namely, the precast columns 17 correspond to the first connecting pieces 2 between the precast beams 20, the two oppositely arranged first connecting pieces 2 are connected with the second connecting piece 6 and fixed by using the third connecting piece 27, and secondary grouting is performed under the supporting condition of the vertical supports 21 to form a grouting section 22.
The structure of the present invention accomplishes the transfer of the shear force at the beam-column connection part by providing the connection member and the shear steel plate at the connection part of the precast beam 20 and the precast column 17. A large number of experiments also prove that the grouting in situ further enhances the integrity of the structure, and the structure is more stable in stress, more reliable in force transmission and better in anti-seismic performance. In addition, the grouting area is small, the high-strength grouting material is high in strength and short in solidification time, the time required by site construction on a construction site is greatly shortened, and the construction speed can be greatly improved.
The first connecting piece 2 comprises a first steel plate 23 which is vertically arranged, two strip-shaped rib plates 3 are respectively arranged in parallel at the upper part and the lower part of the near-end face of one side of the first steel plate 23, slots are formed between the two strip-shaped rib plates 3 and the first steel plate 23, a first shear steel plate 4 is respectively arranged on the side wall of the first steel plate 23 between the two slots, a first through hole 5 is formed in each strip-shaped rib plate 3, and the size and the thickness of each first shear steel plate 4 can be determined according to the shear force transmitted between a beam and a column;
the second connecting piece 6 comprises a second steel plate 7 which is vertically arranged, the upper end face and the lower end face of the second steel plate 7 are respectively provided with third steel plates 8 which are transversely arranged to form an I-shaped structure, the side wall of the second steel plate 7 between the two third steel plates 8 is respectively provided with a second shear resistant steel plate 9, the third steel plate 8 is provided with a second through hole 24, and the size and the thickness of the second shear resistant steel plate 9 are determined according to shear force calculation transmitted between a beam and a column;
the third steel plate 8 of the second connecting piece 6 is embedded in the slot of the first connecting piece 2, the first through holes 5 correspond to the second through holes 24 one by one, and the third connecting pieces 27 are inserted into the first through holes 5 and the second through holes 24.
Further, in the present embodiment, the width and height of the first steel plate 23 are 20-30mm smaller than those of the cross-section of the precast girder 20 for later grouting.
Further, in this embodiment, prefabricated post 17 includes first framework of steel reinforcement 25, first framework of steel reinforcement 25 is including being the vertical atress reinforcing bar 14 in the square four prefabricated posts of arranging, four the 14 one end tip of vertical atress reinforcing bar is equipped with vertical steel sleeve 1 respectively in the prefabricated post the periphery of the vertical atress reinforcing bar 14 has prefabricated post stirrup 15, every along vertical equipartition in the four prefabricated posts of square arranging prefabricated post stirrup 15 is last to be set up the prefabricated post lacing wire 16 that is the well shape and lays.
Further, in this embodiment, the one end that prefabricated post 17 cover was equipped with vertical steel sleeve 1 is provided with first pressure muscle 10, first pressure muscle 10 one end overlap joint in vertical steel sleeve 1 outer wall, its other end rigid coupling have first connecting piece 2, vertical atress reinforcing bar 14 is located in the prefabricated post length in the vertical steel sleeve 1 is the half of vertical steel sleeve 1 height.
Further, in this embodiment, precast beam 20 includes second framework of steel reinforcement 26, second framework of steel reinforcement 26 is including being horizontal atress reinforcing bar 18 in the four precast beams of square arrangement, it has precast beam stirrup 19 to be horizontal equipartition along the periphery of horizontal atress reinforcing bar 18 in the four precast beams of square arrangement.
Further, in this embodiment, second framework 26 both ends are provided with second ribbing 11 in precast beam 20, second ribbing 11 one end overlap joint in precast beam stirrup 19, its other end rigid coupling has first connecting piece 2, and horizontal atress reinforcing bar 18 in the precast beam is had to first connecting piece 2 rigid coupling simultaneously to the transmission internal force.
Further, in this embodiment, the cross section of the rib plate 3 is rectangular, two first through holes 5 are respectively formed in the rib plate 3, the first through holes 5 in the two parallel rib plates 3 correspond to each other and are arranged in parallel, four second through holes 24 are formed in the third steel plate 8, the second through holes 24 are arranged in pairs in parallel, the second through holes 24 in the two parallel third steel plates 8 correspond to each other and are arranged in parallel, and the thickness of the third steel plate is determined by calculating the shear force transmitted between the connected beams and columns.
Further, in this embodiment, the first through hole 5 and the second through hole 24 are both screw holes, the third connecting member 27 is a bolt 12, two ends of the bolt 12 are screwed with nuts, and the bolt 12 is a high-strength bolt; the length of the bolt 12 is specifically the thickness of the third steel plate 8 plus twice the thickness of the strip rib plate 3 plus twice the thickness of the nut 13.
The invention provides an assembling method of an assembly type concrete beam column connecting structure with shear keys, which comprises the following specific steps:
step S1: fabrication of prefabricated columns
S11: manufacturing the first steel bar framework
Arranging longitudinal stress steel bars 14 in four prefabricated columns in a square shape, inserting vertical steel bar sleeves 1 into the upper ends of the longitudinal stress steel bars 14 in the four prefabricated columns, uniformly and vertically arranging prefabricated column stirrups 15 on the peripheries of the longitudinal stress steel bars 14 in the four prefabricated columns in the square arrangement, and erecting prefabricated column tie bars 16 arranged in a well shape on each prefabricated column stirrup 15;
s12: installing the first connecting piece
Arranging a first press rib 10 at one end of a prefabricated column 17 sleeved with a vertical steel bar sleeve 1, wherein one end of the first press rib 10 is lapped on the outer wall of the vertical steel bar sleeve 1, and the other end of the first press rib is fixedly connected with a first connecting piece 2, specifically, the first press rib 10 is placed on prefabricated column stirrups 15 adjacent to the upper part and the lower part of a first steel bar framework 25, is bound and formed with longitudinal stress steel bars 14 in the prefabricated column and prefabricated column stirrups 15 adjacent to the upper part and the lower part, and then the first connecting piece 2 and the first press rib 10 are welded and formed;
s13: pouring concrete
And (3) supporting a template outside the first steel reinforcement framework 25, pouring concrete, pouring the concrete to the outer side surface fixedly connected with the first connecting piece 2, and removing the template after the concrete is solidified to finish the manufacturing of the prefabricated column 17.
Step S2: fabrication of precast beams
S21: making the second steel skeleton
Arranging the transverse stressed steel bars 18 in the four prefabricated beams in a square shape, and transversely and uniformly distributing prefabricated beam stirrups 19 on the peripheries of the transverse stressed steel bars 18 in the four prefabricated beams in the square arrangement;
s22: installing the first connecting piece
Arranging second press ribs 11 at two ends of the precast beam 20, wherein one end of each second press rib 11 is lapped on the precast beam stirrup 19, the other end of each second press rib is fixedly connected with the first connecting piece 2, the first connecting piece 2 is fixedly connected with the transverse stressed steel bar 19 in the precast beam, specifically, the second press ribs 11 are embedded in the second steel bar framework 26 and are welded with the precast beam stirrup 19 for forming, and then the first connecting pieces 2 and the second press ribs 11 are welded for forming;
s23: pouring concrete
And (3) supporting a template outside the second steel reinforcement framework 26, pouring concrete, pouring the concrete to the outer side surface fixedly connected with the first connecting piece 2, and removing the template after the concrete is solidified to finish the manufacturing of the precast beam 20.
Step S3: assembly of prefabricated columns and prefabricated beams
S31: hoisting prefabricated column and prefabricated beam
Arranging a vertical support member 21 at a pre-installation position, hoisting two prefabricated columns 17 and a prefabricated beam 20 in place, wherein the prefabricated beam 20 is positioned between the two prefabricated columns 17 and is lapped on the vertical support;
during hoisting, the circle center of the first through hole 5 of the first connecting piece 2 on the precast column 17 and the circle center of the first through hole 5 of the first connecting piece 2 on the precast beam 20 are kept on a straight line
S32: mounting the second connecting piece
Correspondingly inserting a second connecting piece 6 between the two first connecting pieces 2 which are correspondingly arranged between the precast column 17 and the precast beam 20, namely embedding the third steel plate 8 of the second connecting piece 6 in the slot of the first connecting piece 2, wherein the first through holes 5 and the second through holes 24 are in one-to-one correspondence, and third connecting pieces 27 are inserted in the first through holes 5 and the second through holes 24 to complete the dry connection of the precast column 17 and the precast beam 20;
s33: pouring grouting material
And (3) supporting a template outside the connecting ends of the first connecting piece 2 and the second connecting piece 6, pouring grouting material to form a grouting section 22, and removing the template and the vertical supports after the grouting material reaches the expected strength to obtain the final assembled concrete beam column slurry anchor connecting structure.
The force transmission mechanism of the assembly type concrete beam column slurry anchor connecting structure with the shear key is as follows: shearing force generated by the self weight of the precast beam 20 at the beam end is transmitted to the first connecting piece 2 through the ribbed steel plate pre-embedded in the precast beam 20, and the force received by the first connecting piece 2 is transmitted to the ribbed steel plate in the precast column 17 and then transmitted to the precast column 17; tensile stress generated by the beam-end bending moment of the precast beam 20 is transmitted to the precast column 17 through an upper rib plate of the pre-embedded ribbed steel plate and post-pouring slurry; the tensile stress generated by the beam-end bending moment of the precast beam 20 is transmitted to the precast column 17 through the lower rib plate of the pre-embedded ribbed steel plate and the post-pouring slurry; meanwhile, the embedded ribbed steel plate and the shear-resistant steel plate arranged on the second connecting piece 6 not only contribute to the transmission of shear force and increase a force transmission path, but also can improve the bearing capacity of a component node and enhance the integrity of the structure.
A large number of experiments prove that the integrity of the pure dry type connected node is poor, the purposes of 'strong node and weak component' cannot be achieved, field grouting is performed, the integrity of the structure is further enhanced on the basis of the addition of the original shear key, the structure is more stable in stress, more reliable in force transmission and better in anti-seismic performance. In addition, the grouting area is small, the high-strength grouting material is high in strength, the time for achieving the expected strength is short, the time required by site construction on a construction site is greatly shortened, and the construction speed can be greatly improved.
The parts with high requirement on manufacturing precision comprise the prefabricated columns 17, the prefabricated beams 20, the first pressing ribs 10, the second pressing ribs 11, the first connecting pieces 2 and the second connecting pieces 6 which are all finished in a factory. The degree of difficulty requirement of on-the-spot assembly is not high, constructor's learning cost can be saved, the efficiency of construction is greatly improved, through with first connecting piece 2 and first ribbing 10, the welding of second ribbing 11, first ribbing 10 and first framework of steel reinforcement 25, the welding of second ribbing 11 and first framework of steel reinforcement 25, connect with second connecting piece 6 between the first connecting piece 2, carry out the secondary grout after 12 anchor with high strength bolt, and all be equipped with the steel sheet that shears on first connecting piece 2 and the second connecting piece 6, further accomplish the transmission of shear force, it is more reliable than single dependence welding seam biography power structure. The prefabricated concrete structure has the advantages of meeting the requirements of energy-saving, environment-friendly, economic and safe green building development and the like, and has better engineering application prospect.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. The utility model provides a take assembled concrete beam column thick liquid anchor connection structure of shear key which characterized in that includes: the prefabricated beam is provided with prefabricated columns on two sides respectively, first connecting pieces are arranged on the end faces of one sides, facing each other, of the prefabricated beam and the prefabricated columns respectively, and a second connecting piece is arranged between the two oppositely-arranged first connecting pieces so as to connect the two first connecting pieces into a whole to form a prefabricated beam-prefabricated column connecting structure;
the first connecting piece comprises a first steel plate which is vertically arranged, two strip-shaped rib plates are respectively arranged in parallel at the upper part and the lower part of the near-end face at one side of the first steel plate, slots are formed between the two strip-shaped rib plates and the first steel plate, a first shear-resistant steel plate is respectively arranged on the side wall of the first steel plate between the two slots, and first through holes are formed in the strip-shaped rib plates;
the second connecting piece comprises a second steel plate which is vertically arranged, the end faces of the upper end and the lower end of the second steel plate are respectively provided with a third steel plate which is transversely arranged to form an I-shaped structure, the side wall of the second steel plate between the two third steel plates is respectively provided with a second shear resistant steel plate, and the third steel plate is provided with a second through hole;
the third steel plate of the second connecting piece is embedded in the slot of the first connecting piece, the first through holes and the second through holes correspond to each other one by one, and the third connecting piece is inserted in the first through holes and the second through holes.
2. The fabricated concrete beam column grout anchor connection structure with shear keys according to claim 1, wherein: prefabricated post includes first framework of steel reinforcement, first framework of steel reinforcement is including being the vertical atress reinforcing bar in four prefabricated posts of square arranging, four vertical atress reinforcing bar one end tip is equipped with vertical steel sleeve respectively the periphery has prefabricated post stirrup, every along vertical equipartition in four prefabricated posts that are square arranging prefabricated post stirrup of steel reinforcement has been set up on the prefabricated post stirrup and is the prefabricated post lacing wire that the well-shaped was laid.
3. The fabricated concrete beam column grout anchor connection structure with shear keys according to claim 2, wherein: prefabricated column cover is equipped with vertical steel bar sleeve's one end and is provided with first ribbing, first ribbing one end overlap joint in vertical steel bar sleeve outer wall, its other end rigid coupling has first connecting piece.
4. The fabricated concrete beam column grout anchor connection structure with shear keys according to claim 1, wherein: the precast beam includes second framework of steel reinforcement, the second framework of steel reinforcement is including being the horizontal atress reinforcing bar in four precast beams of square arranging, it has the precast beam stirrup to be the horizontal equipartition along the periphery of horizontal atress reinforcing bar in four precast beams of square arranging.
5. The fabricated concrete beam column grout anchor connection structure with shear keys according to claim 4, wherein: second ribbing is provided with at second framework of steel reinforcement both ends in the precast beam, second ribbing one end overlap joint in precast beam stirrup, its other end rigid coupling has first connecting piece, the horizontal reinforcing bar in the precast beam of the also rigid coupling of first connecting piece simultaneously.
6. The fabricated concrete beam column grout anchor connection structure with shear keys according to claim 1, wherein: the strip-shaped rib plates are respectively provided with two first through holes which are arranged side by side, the third steel plate is provided with four second through holes, and the second through holes are arranged side by side in pairs.
7. The fabricated concrete beam column grout anchor connection structure with shear keys according to claim 2, wherein: the length of the longitudinal stressed steel bar in the prefabricated column, which is positioned in the vertical steel bar sleeve, is half of the height of the vertical steel bar sleeve of the prefabricated column.
8. The fabricated concrete beam column grout anchor connection structure with shear keys according to claim 1, wherein: the width and height of the first steel plate are 20-30mm smaller than those of the cross section of the precast beam.
9. The fabricated concrete beam column grout anchor connection structure with shear keys according to claim 1, wherein: the first through hole and the second through hole are screw holes, the third connecting piece is a bolt, nuts are screwed at two ends of the bolt, the bolt is a high-strength bolt, and the length of a bolt rod is the thickness of the third steel plate plus the thickness of the strip rib plate plus the thickness of the nuts plus the thickness of the nut plus the thickness of the third steel plate plus the second rib plate plus the thickness of the strip rib plate plus the second rib plate plus the third rib plate plus the second rib plate plus the third rib plate plus the second rib plate plus the third rib plate plus the second rib plate plus the third rib plate and the second rib plate plus the third rib plate and the second rib plate and the third rib plate and the second rib plate and the third rib.
10. The assembling method of the assembling type concrete beam column slurry anchor connecting structure with the shear key according to claim 1, wherein the assembling type concrete beam column slurry anchor connecting structure with the shear key comprises the following steps: comprises the following steps:
step S1: fabrication of prefabricated columns
S11: manufacturing the first steel bar framework
Arranging longitudinal stress steel bars in four prefabricated columns in a square shape, inserting vertical steel bar sleeves at the upper ends of the longitudinal stress steel bars in the four prefabricated columns, uniformly and vertically arranging prefabricated column stirrups around the longitudinal stress steel bars in the four prefabricated columns in the square arrangement, and erecting prefabricated column tie bars arranged in a well shape on each prefabricated column stirrup;
s12: installing the first connecting piece
Arranging a first pressing rib at one end of the prefabricated column sleeve provided with the vertical steel bar sleeve, wherein one end of the first pressing rib is lapped on the outer wall of the vertical steel bar sleeve, and the other end of the first pressing rib is fixedly connected with the first connecting piece;
s13: pouring concrete
And (3) supporting a template outside the first steel reinforcement framework, pouring concrete, pouring the concrete to the outer side surface fixedly connected with the first connecting piece, and removing the template after the concrete is solidified to finish the manufacturing of the prefabricated column.
Step S2: fabrication of precast beams
S21: making the second steel skeleton
Arranging the transverse stressed steel bars in the four prefabricated beams in a square shape, and transversely and uniformly distributing prefabricated beam stirrups around the transverse stressed steel bars in the four prefabricated beams in the square arrangement;
s22: installing the first connecting piece
Arranging second pressing ribs at two ends of the precast beam, wherein one end of each second pressing rib is lapped on the precast beam stirrup, the other end of each second pressing rib is fixedly connected with the first connecting piece, and meanwhile, the first connecting piece is fixedly connected with the transverse steel bar in the precast beam;
s23: pouring concrete
And (3) supporting a template outside the second steel reinforcement framework, pouring concrete, pouring the concrete to the outer side surface fixedly connected with the first connecting piece, and removing the template after the concrete is solidified to finish the manufacturing of the precast beam.
Step S3: assembly of prefabricated columns and prefabricated beams
S31: hoisting prefabricated column and prefabricated beam
Arranging a vertical support at a pre-installation position, hoisting two prefabricated columns and a prefabricated beam in place, wherein the prefabricated beam is positioned between the two prefabricated columns and is lapped on the vertical support;
s32: mounting the second connecting piece
Correspondingly inserting a second connecting piece between the two first connecting pieces correspondingly arranged on the precast columns and the precast beams, namely embedding the third steel plates of the second connecting pieces into slots of the first connecting pieces, wherein the first through holes and the second through holes are in one-to-one correspondence, and the third connecting pieces are inserted into the first through holes and the second through holes to finish the dry connection of the precast columns and the precast beams;
s33: pouring grouting material
And (3) supporting the template outside the connecting end of the first connecting piece and the second connecting piece, pouring grouting material, and removing the template and the vertical support after the grouting material reaches the expected strength to obtain the final assembled concrete beam column slurry anchor connecting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110616977.6A CN113136948A (en) | 2021-06-04 | 2021-06-04 | Assembly type concrete beam column slurry anchor connecting structure with shear keys and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110616977.6A CN113136948A (en) | 2021-06-04 | 2021-06-04 | Assembly type concrete beam column slurry anchor connecting structure with shear keys and assembling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113136948A true CN113136948A (en) | 2021-07-20 |
Family
ID=76816081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110616977.6A Pending CN113136948A (en) | 2021-06-04 | 2021-06-04 | Assembly type concrete beam column slurry anchor connecting structure with shear keys and assembling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113136948A (en) |
-
2021
- 2021-06-04 CN CN202110616977.6A patent/CN113136948A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113235776B (en) | Function-recoverable assembled anti-seismic shear wall structure | |
| CN106894523B (en) | Connecting joint of rectangular steel pipe concrete column and steel reinforced concrete beam | |
| CN110792165B (en) | Prefabricated assembly type concrete beam column joint connecting device and method | |
| CN113863532B (en) | Vertical connecting node of concrete shear wall and manufacturing and mounting method thereof | |
| CN111962948A (en) | Steel tube concrete column-H-shaped steel beam-steel support-pi-shaped connecting piece combined side column bottom node and manufacturing method | |
| CN114319977B (en) | Steel pipe concrete row column type connection precast shear wall structure and construction method | |
| CN109267585B (en) | Assembled prismatic table type foundation and column structure and assembling method | |
| CN105133786A (en) | Hollow type combination beam for quick construction and construction method | |
| CN219157934U (en) | Assembled concrete self-resetting beam column node box type connection structure | |
| CN111749364A (en) | Assembly type composite wall based on C-shaped steel and construction method thereof | |
| CN111335464A (en) | Fabricated concrete structure beam column connecting node and construction method thereof | |
| CN214833415U (en) | Take shear key's assembled concrete beam column thick liquid anchor connection structure | |
| CN113136948A (en) | Assembly type concrete beam column slurry anchor connecting structure with shear keys and assembling method | |
| CN216276141U (en) | Take muscle assembled concrete beam column thick liquid anchor connection structure | |
| CN111877831B (en) | Assembled prefabricated column splicing type rigid connecting node and construction method | |
| CN210562653U (en) | Assembled structure connecting piece | |
| CN113216388A (en) | Support-free assembled concrete beam column connecting structure and assembling method | |
| CN113863494A (en) | Assembly type concrete beam column connecting node and mounting method thereof | |
| CN206859464U (en) | The attachment means of fabricated shear wall horizontal joint | |
| CN216195649U (en) | Assembled composite wall perps connection structure based on H shaped steel | |
| CN212506733U (en) | Assembled concrete structure beam column connected node | |
| CN213926775U (en) | Prefabricated section steel concrete column and girder steel connected node | |
| CN212927240U (en) | Steel pipe concrete column-H steel beam-support-Pi-shaped combined side column bottom node | |
| CN214364131U (en) | Prefabricated assembled concrete connected node | |
| CN213539881U (en) | Steel core concrete column H type roof beam supports pi combination formula center pillar bottom node |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |