CN213898249U

CN213898249U - Reinforced structure of newly-added concrete beam

Info

Publication number: CN213898249U
Application number: CN202022768257.5U
Authority: CN
Inventors: 柳飞; 黄勇军
Original assignee: Wuhan Huake Yongxin Construction Engineering Co ltd
Current assignee: Wuhan Huake Yongxin Construction Engineering Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-08-06
Anticipated expiration: 2030-11-25

Abstract

The application relates to a reinforcing structure of a newly-added concrete beam, which relates to the field of building construction and comprises a steel pipe, a cross beam, a bottom plate, a fixing plate, an anchor bolt and a shear assembly; the steel pipe set up perpendicularly in on the crossbeam, the bottom plate is fixed in the bottom of steel pipe, the fixed plate set up in the inside of crossbeam, just the bottom plate with the fixed plate is parallel to each other, the crab-bolt be fixed in the bottom plate with between the fixed plate, the subassembly that shears set up in the lower surface of bottom plate with between the upper surface of crossbeam, just the subassembly that shears set up in the inside of crossbeam. This application has stable in structure, firm effect.

Description

Reinforced structure of newly-added concrete beam

Technical Field

The application relates to the field of building construction, especially, relate to a reinforced structure of newly-increased concrete beam.

Background

At present, along with the continuous and rapid development of social economy and construction science and technology in China, high-rise and super high-rise buildings are more and more. In order to meet the requirements of rigidity, strength and earthquake resistance of buildings, steel pipe concrete composite columns are increasingly adopted in high-rise buildings, particularly super high-rise buildings.

A chinese patent with application number CN201921370395.9 discloses a concrete-filled steel tube composite column for high-rise buildings and a reinforcement system thereof, the concrete-filled steel tube composite column comprises a composite column steel tube with studs arranged on the inner and outer tube walls and a column base bottom plate located at the bottom of the composite column steel tube, the column base bottom plate is fixed in a foundation through an anchor bolt, an upper annular positioning plate is arranged above the column base bottom plate, the upper annular positioning plate is arranged at the part of the anchor bolt extending out of the column base bottom plate, and the upper annular positioning plate is clamped by a nut arranged on the anchor bolt and is parallel to the column base bottom plate; the bottom cover of above-mentioned crab-bolt has the lower annular locating plate of burying underground under the basis, and above-mentioned lower annular locating plate size corresponds from top to bottom with the size of last annular locating plate.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the column base bottom plate and the annular positioning plate are directly fixed on the foundation beam through the anchor bolts between the superposed column steel pipes and the foundation beam, and after the template is built and concrete is poured in the later period, the connecting structure of the superposed column steel pipes and the foundation beam is not stable and firm enough, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to improve the unstable problem of structure of steel pipe and crossbeam tie point, this application provides a reinforced structure of newly-increased concrete beam.

The application provides a pair of reinforced structure of newly-increased concrete beam adopts following technical scheme:

a reinforcing structure of a newly-added concrete beam comprises a steel pipe, a cross beam, a bottom plate, a fixing plate, anchor bolts and a shear assembly;

the steel pipe set up perpendicularly in on the crossbeam, the bottom plate is fixed in the bottom of steel pipe, the fixed plate set up in the inside of crossbeam, just the bottom plate with the fixed plate is parallel to each other, the crab-bolt be fixed in the bottom plate with between the fixed plate, the subassembly that shears set up in the lower surface of bottom plate with between the upper surface of crossbeam, just the subassembly that shears set up in the inside of crossbeam.

By adopting the technical scheme, after the bottom end of the steel pipe and the inside of the cross beam are fixedly connected together by the anchor bolt, the shearing resistant component is arranged between the bottom plate and the cross beam, one part of the shearing resistant component is inserted into the inside of the cross beam, the shearing force at the bottom of the steel pipe can be effectively resisted, the sliding between the bottom plate and the cross beam can be prevented, and the structure of the joint of the steel pipe and the cross beam is more stable and firm.

Preferably, the shear assembly comprises a concrete layer and a cross shear key;

the concrete layer set up in the lower surface of bottom plate with between the upper surface of crossbeam, concrete layer with all be provided with corresponding and the pre-buried hole of intercommunication on the crossbeam, the bottom of cross shear key inserts in the pre-buried hole, the top of cross shear key is fixed in the lower surface of bottom plate.

Through adopting above-mentioned technical scheme, offer on the crossbeam and supply cross shear key male pre-buried hole, then set up concrete layer at the upper surface of crossbeam, then with bottom plate and cross shear key fixed connection back again, cross shear key can fix well and restrict the bottom plate, the time bottom plate is difficult to slide, connection structure between bottom plate and the crossbeam is more stable, firm.

Preferably, a reinforcing rib is arranged between the outer side wall of the steel pipe and the upper surface of the bottom plate.

Through adopting above-mentioned technical scheme, steel pipe and the direct being connected of bottom plate, only the terminal surface and the bottom plate through the steel pipe bottom are fixed, and structural firmness is not good, increases the stiffening rib between the two after, and steel pipe and bottom plate have increased a plurality of tie points to it is more firm to make the structure between bottom plate and the steel pipe.

Preferably, pre-buried in the concrete layer have with the corresponding nut of crab-bolt, the top screw thread of crab-bolt is worn to locate behind the nut and protrusion in the upper surface of bottom plate, the bottom plate passes through nut and a plurality of nut clamp and locates the top of crab-bolt.

Through adopting above-mentioned technical scheme, the back is worn to establish between bottom plate and fixed plate by the crab-bolt, because the top bolt of crab-bolt runs through in the intraformational nut of concrete, the nut not only has fixed and limiting displacement to the stock, makes the stock can not rock at will, and nut and two nuts are mutually supported and are carried the bottom plate moreover to make the crab-bolt more stably wear to establish on the bottom plate, further strengthened structural stability and fastness.

Preferably, the bottom of crab-bolt is provided with the kink, the kink is located the below of fixed plate.

Through adopting above-mentioned technical scheme, the kink has strengthened the resistance to plucking ability of the bottom of crab-bolt in the crossbeam, also enables the fixed plate moreover and is difficult to break away from the bottom of crab-bolt, and the structure is more stable and firm.

Preferably, a circle of vertical ribs are vertically arranged between the outer peripheral side of the steel pipe and the inside of the cross beam, a plurality of annular ribs are arranged along the circle of vertical ribs at intervals in the length direction, and the vertical ribs are connected in a hooping mode through the annular ribs to form a reinforcement cage.

Through adopting above-mentioned technical scheme, during the construction, erect the reinforcing bar in the periphery of steel pipe, then set up the template in the periphery of steel reinforcement cage and pour the concrete, and the steel reinforcement cage extends to the inside of crossbeam from the lower extreme of steel pipe always, and the monolithic connectivity between steel pipe and the crossbeam is better, and the structure is more stable, firm.

Preferably, the top ends of the vertical ribs are bent towards the direction close to the steel pipe, and the bottom ends of the vertical ribs are bent towards the direction far away from the steel pipe.

Through adopting above-mentioned technical scheme, the top and the bottom of erecting the muscle all design into buckling, have strengthened the resistance to plucking ability of erecting the muscle in the concrete, and the structure of whole steel reinforcement cage is more stable and firm to the steadiness between steel pipe and the crossbeam has been strengthened.

Preferably, a plurality of pegs are fixed on the outer side wall of the steel pipe.

Through adopting above-mentioned technical scheme, the structural strength of steel pipe has not only been strengthened to the peg of steel pipe periphery, and after the periphery of steel pipe was pour the concrete again in the later stage moreover, the resistance to plucking ability between steel pipe and the concrete can be strengthened to the peg, makes the structure of steel pipe in the concrete more stable and firm.

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

1. the bottom end of the steel pipe is fixedly connected with the inside of the cross beam through the anchor bolt, and then the anti-shearing assembly is arranged between the bottom plate and the cross beam, so that the bottom plate can be effectively prevented from sliding on the upper surface of the cross beam, and the structural stability of the joint of the steel pipe and the cross beam is enhanced;

2. the upper surface of the cross beam is provided with the embedded hole, the cross shear key is inserted into the cross beam, and the bottom plate is fixed on the top end of the cross shear key through the concrete layer, so that the bottom plate can be prevented from sliding on the upper surface of the cross beam, and the structure of the joint of the steel pipe and the cross beam is more stable and firm;

3. set up a plurality of stiffening ribs between steel pipe and the bottom plate, strengthened the firm in connection nature of steel pipe and bottom plate, time both are difficult to break away from each other, and the structure is more stable and firm.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic structural view of an anchor bolt according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a cross shear key in an embodiment of the present application.

Description of reference numerals: 1. a steel pipe; 2. a cross beam; 3. a base plate; 4. a fixing plate; 5. an anchor bolt; 51. a bending section; 6. a shear assembly; 61. a concrete layer; 62. a cross shear key; 7. reinforcing ribs; 8. a reinforcement cage; 81. erecting ribs; 82. looping ribs; 9. a stud; 101. a nut; 102. a nut; 103. a template; 104. and (5) a concrete layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses reinforced structure of newly-increased concrete beam. Referring to fig. 1, the reinforcing structure of the newly added concrete beam comprises a steel pipe 1, a cross beam 2, a bottom plate 3, a fixing plate 4, an anchor bolt 5 and a shear assembly 6; the steel pipe 1 is vertically installed in the upper surface of crossbeam 2, steel pipe 1 is made by stainless steel, the periphery wall welded fastening of steel pipe 1 has the peg 9 that a plurality of levels were laid, coaxial welded fastening has rectangular bottom plate 3 on the terminal surface of steel pipe 1 bottom, the thickness of bottom plate 3 is 40mm, welded fastening has a plurality of cross-sections for right trapezoid's stiffening rib 7 between the week side outer wall of steel pipe 1 lower extreme and the upper surface of bottom plate 3, a plurality of stainless steel's stiffening rib 7 are laid along the circumference interval of steel pipe 1.

Referring to fig. 1 and 2, bottom plate 3 has been close to all sides edge and has been seted up a plurality of perforation, it has an crab-bolt 5 to vertically run through in each perforation, the inside of crossbeam 2 transversely is fixed with fixed plate 4 that is parallel to each other with bottom plate 3, the through-hole corresponding with bottom plate 3 has also been seted up on fixed plate 4, the bottom of crab-bolt 5 also vertically runs through fixed plate 4, the top protrusion of crab-bolt 5 is in the upper surface of bottom plate 3, bottom protrusion in the lower surface of fixed plate 4, and the bottom integrated into one piece of crab-bolt 5 has the kink 51 towards steel pipe 1 direction.

Referring to fig. 1 and 3, in order to prevent the bottom plate 3 from sliding on the upper surface of the beam 2, a shear assembly 6 is arranged between the bottom plate 3 and the upper surface of the beam 2, the shear assembly 6 comprises a concrete layer 61 and a cross shear key 62, the cross shear key 62 is formed by welding four steel plates, a pre-buried hole for the cross shear key 62 to be inserted into is formed in the upper surface of the beam 2, the bottom end of the cross shear key 62 is inserted into the pre-buried hole in the beam 2, the top end of the cross shear key 62 protrudes out of the upper surface of the beam 2 and then is welded and fixed with the center position of the lower surface of the bottom plate 3, the concrete layer 61 is integrally poured between the upper surface of the beam 2 and the bottom plate 3, the pouring thickness of the non-shrinkage fine stone concrete layer 61 is 70mm, and the cross shear key 62 is completely pre-buried and fixed by the concrete layer 61.

The top and the bottom of crab-bolt 5 all are provided with the external screw thread (as shown in fig. 2), pre-buried nut 101 corresponding with the quantity of crab-bolt 5 in the concrete layer 61, the top screw thread of crab-bolt 5 is equipped with two nut 102, two nut 102 and the pre-buried nut 101 cooperation in concrete layer 61 press from both sides the fastening with bottom plate 3 and fix, the bottom screw thread of crab-bolt 5 is equipped with two nut 101, two nut 101 press from both sides fixed plate 4 and press from both sides the fastening and fix, thereby make crab-bolt 5 and bottom plate 3, be difficult to not hard up between the fixed plate 4.

The periphery cover of steel pipe 1 is equipped with steel reinforcement cage 8, steel reinforcement cage 8 is formed by the vertical many perpendicular muscle 81 of laying of round with cramp at a plurality of ring muscle 82 cramps of round perpendicular muscle 81 periphery, the ring muscle 82 is fixed through the wire rope ligature with the junction of erecting muscle 81, the inside at crossbeam 2 is fixed to the latter half of steel reinforcement cage 8, first partial protrusion is in crossbeam 2 and encloses the periphery of establishing at steel pipe 1, wherein, the outside integrative buckling of the direction of keeping away from steel pipe 1 is faced towards the bottom of each perpendicular muscle 81, the inside integrative completion of direction of being close to steel pipe 1 is faced towards the top of erecting muscle 81, after concrete layer 104 is pour to the later stage, the resistance to plucking performance of erecting muscle 81 is better.

During construction, a template frame of the cross beam 2 is built firstly, then the bound reinforcement cage 8 is placed in the template frame of the cross beam 2, the upper half part of the reinforcement cage 8 protrudes out of the upper surface of the cross beam 2, then the assembled fixing plate 4 and the anchor bolts 5 are inserted into the template frame of the cross beam 2, the top ends of the anchor bolts 5 also need to protrude out of the cross beam 2, meanwhile, a nut 101 is assembled on the top end thread of each anchor bolt 5, then concrete is poured into the template frame of the cross beam 2, a pre-embedded hole for inserting the cross shear key 62 is reserved on the upper surface of the cross beam 2, after the poured cross beam 2 is formed, the cross shear key 62 fixed at the center position of the lower surface of the bottom plate 3 is inserted into the pre-embedded hole of the cross beam 2, the top ends of the anchor bolts 5 penetrate through the bottom plate 3, and the lower surface of the bottom plate 3 is abutted to the nut 101.

Then, a concrete layer 61 is poured on the upper surface of the cross beam 2, meanwhile, a plurality of concrete layers 61 are filled in the embedded holes to fix the cross shear keys 62, two screw caps 102 are assembled at the top ends of the anchor bolts 5 in a threaded manner to clamp the bottom plate 3, after the concrete layers 61 are solidified and formed, the steel pipe 1 with the stud bolts 9 fixed on the periphery is fixed on the upper surface of the bottom plate 3, then the reinforcing ribs 7 are fixed on the periphery of the steel pipe 1 and the bottom plate 3, a template 103 is built on the periphery of the upper half steel reinforcement cage 8, a concrete layer 104 is poured into the template 103 to fix the steel reinforcement cage 8, and finally, a concrete layer 104 is poured into the steel pipe 1.

The implementation principle of the reinforced structure of the newly-added concrete beam in the embodiment of the application is as follows: connect fixedly through same steel reinforcement cage 8 between crossbeam 2 and the steel pipe 1, the overall connectivity between crossbeam 2 and the steel pipe 1 is better, bottom plate 3 fixed with steel pipe 1 is connected fixedly through crab-bolt 5 and pre-buried fixed plate 4 in crossbeam 2 inside, further strengthened the fastness of connection between the two, and be connected through cross shear key 62 and concrete layer 61 between the upper surface of crossbeam 2 and the lower surface of bottom plate 3, be difficult to take place to slide between bottom plate 3 and the crossbeam 2, bottom plate 3 and steel pipe 1's periphery is fixed with a plurality of stiffening ribs 7, the fastness of connection between bottom plate 3 and the steel pipe 1 has been strengthened, the structure of steel pipe 1 and crossbeam 2 junction is more stable, it is firm.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a reinforced structure of newly-increased concrete beam which characterized in that: comprises a steel pipe (1), a cross beam (2), a bottom plate (3), a fixing plate (4), an anchor bolt (5) and a shear assembly (6);

steel pipe (1) set up perpendicularly in on crossbeam (2), bottom plate (3) are fixed in the bottom of steel pipe (1), fixed plate (4) set up in the inside of crossbeam (2), just bottom plate (3) with fixed plate (4) are parallel to each other, crab-bolt (5) be fixed in bottom plate (3) with between fixed plate (4), shear assembly (6) set up in the lower surface of bottom plate (3) with between the upper surface of crossbeam (2), just shear assembly (6) some set up in the inside of crossbeam (2).

2. The reinforcing structure of a newly added concrete beam according to claim 1, wherein: the shear assembly (6) comprises a concrete layer (61) and a cross shear key (62);

concrete layer (61) set up in the lower surface of bottom plate (3) with between the upper surface of crossbeam (2), concrete layer (61) with all be provided with corresponding and the pre-buried hole of intercommunication on crossbeam (2), the bottom of cross shear key (62) is inserted in the pre-buried hole, the top of cross shear key (62) is fixed in the lower surface of bottom plate (3).

3. The reinforcing structure of a newly added concrete beam according to claim 1, wherein: and a reinforcing rib (7) is arranged between the outer side wall of the steel pipe (1) and the upper surface of the bottom plate (3).

4. The reinforcing structure of the newly added concrete beam according to claim 2, wherein: pre-buried in concrete layer (61) have with corresponding nut (101) of crab-bolt (5), the top screw thread of crab-bolt (5) is worn to locate behind nut (101) and protrusion in the upper surface of bottom plate (3), bottom plate (3) are passed through nut (101) and a plurality of nut (102) press from both sides and locate the top of crab-bolt (5).

5. The reinforcing structure of the newly added concrete beam according to claim 4, wherein: the bottom of crab-bolt (5) is provided with kink (51), kink (51) are located the below of fixed plate (4).

6. The reinforcing structure of a newly added concrete beam according to claim 1, wherein: the steel pipe is characterized in that a circle of vertical ribs (81) are vertically arranged between the outer peripheral side of the steel pipe (1) and the inside of the cross beam (2), a plurality of annular ribs (82) are arranged along the circle of vertical ribs (81) at intervals in the length direction, and the circle of vertical ribs (81) are connected in a hooping mode through the annular ribs (82) to form a steel reinforcement cage (8).

7. The reinforcing structure of the newly added concrete beam according to claim 6, wherein: the top end of the vertical rib (81) is bent towards the direction close to the steel pipe (1), and the bottom end of the vertical rib (81) is bent towards the direction far away from the steel pipe (1).

8. The reinforcing structure of a newly added concrete beam according to claim 7, wherein: and a plurality of studs (9) are fixed on the outer side wall of the steel pipe (1).