CN218028322U - Assembled steel-concrete structural member and connection structure - Google Patents

Abstract

The utility model discloses an assembled steel-concrete structure and connection structure, this assembled steel-concrete structure include the steel member, and the steel member has the die cavity that is used for concreting, and the die cavity internal fixation is provided with a plurality of wall and ties, is fixed with a plurality of outer connecting plates that extend outwards on the one end outer wall of steel member, and the interval is fixed with a plurality of fastening bolt pieces on the other end inner wall, has seted up first through-hole on the outer connecting plate, has seted up threaded hole on the fastening bolt piece, correspond the screw hole in the second through-hole has been seted up on the steel member. When the assembled steel-concrete structural member is assembled on the upper layer and the lower layer, the outer reinforcing plates and the fastening bolt blocks of the two layers of structural members are fixedly connected through the fixing bolts, the on-site welding is not needed, the construction is convenient and rapid, the construction is safe and environment-friendly, the integral structure of the connecting parts of the upper layer and the lower layer is stable and reliable, and the strength is high.

Description

Assembled steel-concrete structural member and connection structure

Technical Field

The utility model belongs to the technical field of the assembly type building element, especially, relate to an assembled steel-concrete structure and connection structure suitable for assembly type building.

Background

Concrete and steel are common materials commonly used for engineering structure construction, and with the proposal of building industrialization concept, the assembly type building becomes a new development direction, in recent years, a steel-concrete structural member is widely applied to the assembly type building as a combined structural member, and the steel-concrete structural member exerts the material performance advantages of light steel, high strength and high concrete rigidity, and has the characteristics of flexible layout, high industrialization degree and high construction speed.

As is well known, in the field construction process of the existing steel-concrete structural members for prefabricated buildings, two structural members located at the upper and lower floors need to be welded and fixed, and obviously, the following disadvantages exist in the manner of welding and fixing:

1) Construction is inconvenient, construction cost is high, and construction period is long;

2) Potential safety hazards exist in high-altitude welding, and energy conservation and environmental protection are not facilitated;

3) In a specific construction process, a lower-layer structural member is usually poured firstly, and then the connecting parts of the upper-layer structural member and the lower-layer structural member are poured after the pouring is finished.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an assembled steel-concrete structure and connection structure, this kind of assembled steel-concrete structure need not the welding and has a limiting displacement to the concrete of coupling part in upper and lower floor's structure construction assembling process to solve among the prior art assembled steel-concrete structure and pass through the above-mentioned problem that welding assembly exists in the site operation in upper and lower floor's structure.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an assembled steel-concrete structure spare, its includes the steel member, the steel member has the die cavity that is used for concreting, the die cavity internal fixation is provided with a plurality of wall bolt, wherein, be fixed with a plurality of outer connecting plates that extend outwards on the one end outer wall of steel member, the interval is fixed with a plurality of fastening bolt pieces on the other end inner wall, first through-hole has been seted up on the outer connecting plate, set up threaded hole on the fastening bolt piece, correspond the screw hole in set up the second through-hole on the steel member, two during the steel member assembly, in a plurality of outer connecting plates of another steel member were inserted to one of them steel member's the one end that sets up a plurality of fastening bolt pieces, fixing bolt passed first through-hole and second through-hole and locking in corresponding the screwed hole of fastening bolt piece.

Further, a plurality of outward extending anchor hoop lacing wires are fixed on the inner wall of one end, provided with the outer connecting plate, of the steel member at intervals, and the positions of the first through holes and the anchor hoop lacing wires are staggered.

Furthermore, the whole anchor hoop lacing wire is of a U-shaped structure with an opening at the bottom, and two ends of the anchor hoop lacing wire are respectively welded and fixed on the inner walls of two sides of the steel member in the length direction.

Further, at least one set of third through hole has been seted up to the correspondence on two sides of the one end that is provided with the fastening bolt piece of steel member, two sides are followed the width direction of the die cavity of steel member sets up relatively, the third through hole is located the top of fastening bolt piece.

Further, a plurality of outer connecting plate welded fastening in the tip of steel member and will the tip of steel member surrounds, just the open slot that is used for increasing welding seam length is offered to the bottom of a plurality of outer connecting plate to improve the welding reliability of outer connecting plate and steel member.

Further say, the edge has all been seted up in the one end four corners that the steel member was provided with the fastening tie piece the expansion joint that the steel member direction of height extends, and the setting up at expansion joint can make the one end steel sheet of steel member produce deformation, and behind concreting, the concrete can give an outside tension of steel sheet of this end.

Furthermore, the section of the steel member is in any one or combination of a straight-line-shaped structure, an L-shaped structure, a T-shaped structure and a cross-shaped structure.

A connection structure of a non-assembly type steel-concrete structural member comprises a first structural member and a second structural member, wherein the first structural member and the second structural member both adopt the assembly type steel-concrete structural member, one end, provided with a fastening bolt block, of the first structural member is inserted into an external connection plate of the second structural member, a second through hole of the first structural member corresponds to a first through hole in the external connection plate of the second structural member, a fixing bolt is locked on the corresponding fastening bolt block through the first through hole and the second through hole so as to fix the external connection plate of the second structural member at the end part of the first structural member, and an anchor hoop lacing wire of the second structural member is positioned in a cavity of the first structural member.

Further, each group of third through holes in the end part of the first structural member are provided with threaded bolt rods in a penetrating mode, the threaded bolt rods penetrate through the cavity of the first structural member in the width direction, and two ends of the threaded bolt rods are fixed on the steel structural member of the first structural member through locking nuts.

Further, the threaded bolt is located in the U-shaped openings of all the tie rods of the second structural member.

The beneficial effects of the utility model are that, assembled steel-concrete structure spare and connection structure thereof have following advantage compared with prior art:

1) The outer reinforcing plate and the fastening bolt block of the upper-layer and lower-layer assembled steel-concrete structural members are fixedly connected through the fixing bolt, on the premise that the connection is stable and reliable, on-site welding is not needed, and the steel-concrete structural member is convenient and fast to construct, safe to construct and environment-friendly.

2) The whole assembly type steel-concrete structural member can be prefabricated in a factory, construction is convenient, manufacturing cost is low, construction period is short, industrialization degree is high, and popularization and application of assembly type buildings are facilitated.

3) The fastening bolt block is positioned in the cavity of the assembled steel-concrete structural member, not only can play a role in connection and fixation, but also can play a role in limiting the concrete in the connecting part of the upper and lower structural members, thereby effectively avoiding the occurrence of up-and-down sliding of the concrete at the position and ensuring the overall reliability of the connecting structure of the upper and lower structural members.

4) A plurality of anchor hoop lacing wires stretch into the die cavity of upper structure spare in, are connected lower floor's structure spare as an organic whole with the concrete in the upper structure spare, have increased the connection structure reliability and the joint strength of upper and lower floor's structure spare, also can effectively avoid the emergence that this department concrete removed simultaneously.

5) The threaded bolt rod penetrates through the cavity and is located in the U-shaped opening of the anchor hoop tie bar, the concrete in the cavity at the position is limited, and meanwhile, the threaded bolt rod penetrates through all the anchor hoop tie bars, so that the overall connection strength and reliability are improved.

Drawings

Fig. 1 is a schematic front view of a connection structure of an assembled steel-concrete structural member according to an embodiment of the present invention;

FIG. 2 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic structural diagram of an assembled steel-concrete structural member according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a schematic cross-sectional view taken along line C-C of FIG. 3;

FIG. 6 is a schematic cross-sectional view taken along line D-D of FIG. 3;

FIG. 7 is a schematic cross-sectional view taken along line E-E of FIG. 3;

fig. 8 is a schematic front view of an external connection plate of an assembled steel-concrete structural member according to an embodiment of the present invention;

fig. 9 is a schematic top view of an external connection plate of an assembled steel-concrete structural member according to an embodiment of the present invention;

fig. 10 is a schematic side view of a fastening plug of an assembled steel-concrete structural member according to an embodiment of the present invention;

FIG. 11 is a schematic front view of a fastening bolt block of an assembled steel-concrete structural member according to an embodiment of the present invention;

fig. 12 is a schematic structural view of an anchor stirrup of an assembled steel-concrete structural member according to an embodiment of the present invention;

fig. 13 is a schematic structural view of an assembled steel-concrete structural member according to an embodiment of the present invention after field construction;

fig. 14 is a schematic top view of a connection structure of a fabricated steel-concrete structural member according to a second embodiment of the present invention;

fig. 15 is a schematic top view of a connection structure of an assembled steel-concrete structural member according to a third embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example one

Referring to fig. 1 to 12, in the present embodiment, a connection structure of an assembly type steel-concrete structural member includes an upper structural member 1 and a lower structural member 2, the upper structural member 1 and the lower structural member 2 have the same structure and each include a steel member 3 integrally having a "one" -shaped structure, the steel member 3 may be any one of a wall column or a shear wall for an assembly type building, the steel member 3 has a cavity 4 for pouring concrete, no partition is disposed in the cavity 4, a plurality of insertion holes 5 for inserting wall bolts are correspondingly formed in two wide side plates of the steel member 3, the wall bolts are inserted into the corresponding two insertion holes 5 and are welded and fixed to a steel plate, the wall bolts reinforce the steel member 3, and the steel member 3 and concrete poured therein are integrated by the wall bolts, the wall bolts are arranged in multiple layers in the height direction of the steel member 3, and the wall bolts of adjacent upper and lower layers are arranged in a staggered manner.

Welded fastening has the carriage on the upper end outer wall of steel member 3, and the carriage is formed by 6 tailor-welds of four outer connecting plates, and four outer connecting plates 6 hug closely welded fastening on four curb plates of steel member 3 and extend up to surround the upper end of steel member 3. A plurality of first through holes 6-1 are formed in the four outer connecting plates 6, a plurality of strip-shaped fastening bolt blocks 7 with certain thickness are fixedly welded on the inner wall of the lower end of the steel member 3 in a matched mode through the first through holes 6-1, threaded holes 7-1 are formed in the fastening bolt blocks 7, a plurality of second through holes 3-1 are formed in the steel member 3 corresponding to the threaded holes 7-1, an open slot 6-2 used for increasing the length of a welding line is formed in the bottom of each outer connecting plate 6, so that the welding length of the outer connecting plates 6 and the steel member 3 is prolonged, meanwhile, the connecting frame is inserted into the bottom end of the upper-layer structural member 1, and chamfers are formed in the inner side of the upper end of each outer connecting plate 6.

Expansion joints 3-2 extending along the height direction of the steel member 3 are formed in four corners of one end, provided with the fastening bolt blocks 7, of the steel member 3, the steel plate at one end of the steel member 3 can deform due to the arrangement of the expansion joints 3-2, and after concrete is poured, the concrete can provide outward tension for the steel plate at the end, so that the friction force of the steel plate between the upper-layer structural member 1 and the lower-layer structural member 2 is improved, and the connection strength and reliability are improved.

A plurality of anchor hoop tie bars 8 extending upwards are fixed at the upper end of the steel member 3 along the width direction of the cavity 4 at intervals, the anchor hoop tie bars 8 are bent into a U-shaped structure with an opening at the bottom by deformed steel bars, the anchor hoop tie bars 8 are provided with U-shaped openings 8-1, two ends of the anchor hoop tie bars 8 are respectively welded and fixed on the inner walls of two side edges (namely two wide side plates of the steel structure) of the steel member 3 which are oppositely arranged along the thickness direction of the cavity 4, the fixed positions of the anchor hoop tie bars 8 are required to be mutually staggered with the positions of the first through holes 6-1, and the two anchor hoop tie bars 8 positioned at the outermost side are bent inwards so as to enter the cavity 4 of the upper structural member 1.

Four groups of third through holes 3-3 are correspondingly formed in two opposite side edges (namely, narrow side plates on two sides of the steel structure) of the lower end of the steel member 3 along the width direction of the cavity 4, and the third through holes 3-3 are all positioned above the fastening bolt blocks 7. During construction, each group of third through holes are all provided with a threaded bolt rod 9 in a penetrating manner, the threaded bolt rods 9 penetrate through the cavity 4 of the steel member 3 along the width direction, the two ends of the threaded bolt rods are fixed on the steel member 3 through locking nuts 10, and all the threaded bolt rods 9 are located in the U-shaped openings 8-1 of the anchor band tie bars 8.

Referring to fig. 13, after being prefabricated in a factory, an upper-layer structural member 1 and a lower-layer structural member 2 are transported to a site for construction, and the specific site construction includes the following steps:

after the lower-layer structural member 2 is assembled, pouring concrete into the lower-layer structural member 2, and reserving the upper end of a cavity 3 of the lower-layer structural member 2 to facilitate subsequent assembly with the upper-layer structural member 2;

step two, hoisting the upper layer structural member 1 to the position right above the lower layer structural member 2, inserting the lower end of the upper layer structural member 1 into a connecting frame of the lower layer structural member 2, enabling a plurality of second through holes 3-1 of the upper layer structural member 1 to be in one-to-one correspondence with a plurality of first through holes 6-1 on an external connecting plate 6 of the lower layer structural member 2, sequentially penetrating a plurality of fixing bolts 11 through the second through holes 3-1 of the upper layer structural member 1 and the first through holes 6-1 of the lower layer structural member 2 and locking the fixing bolts in threaded holes 7-1 of corresponding fastening bolt blocks 7, fixing all the external connecting plates 6 of the lower layer structural member 2 at the lower end of the upper layer structural member 1,

thirdly, a threaded bolt 9 penetrates through each group of third through holes 3-3 on the upper-layer structural member 1, the threaded bolt 9 is positioned in the U-shaped openings 8-1 of all the anchor hoop tie bars 8 of the lower-layer structural member 2, two ends of the threaded bolt 9 are fixed on the steel member 3 of the upper-layer structural member 1 through locking nuts 10,

step four, pouring concrete at the joint of the upper-layer structural member 1 and the lower-layer structural member 2,

and step five, after concrete pouring is finished, constructing an outer wall 12 on the outer walls of the upper-layer structural member 1 and the lower-layer structural member 2.

It should be noted that:

the section of the steel component 3 can also be any one of an L-shaped structure, a T-shaped structure and a cross-shaped structure or a combination of a plurality of structures in a shape like a Chinese character 'yi'.

Example two

Referring to fig. 14, the main difference between the connection structure of the assembled steel-concrete structural member in the present embodiment and the first embodiment is that: the structural member and the connecting structure are applied to an L-shaped structural member, a connecting frame surrounded by a plurality of outer connecting plates 6 is matched with the cross section of the L-shaped structural member, and the structures and the connecting modes of the fastening bolt block 7, the anchor hoop tie bar 8 and the threaded bolt rod 9 are the same, so that the description is omitted.

EXAMPLE III

Referring to fig. 15, the main difference between the connection structure of the assembled steel-concrete structural member in this embodiment and the first embodiment is as follows: the structural member and the connecting structure are applied to a T-shaped structural member, a connecting frame surrounded by a plurality of outer connecting plates 6 is matched with the cross section of the T-shaped structural member, and the structures and the connecting modes of the fastening bolt block 7, the anchor hoop tie bar 8 and the threaded bolt rod 9 are the same, so that the description is omitted. Therefore, the connecting structure can be also applied to the steel member with the cross-shaped structure according to the requirement.

The above embodiments have only been illustrated the basic principle and characteristics of the present invention, the present invention is not limited by the above embodiments, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these changes and modifications all fall into the scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The assembled steel-concrete structural member comprises a steel member (3), wherein the steel member (3) is provided with a cavity (4) for pouring concrete, a plurality of wall bolts are arranged in the cavity (4) in a fixed manner, and the assembled steel-concrete structural member is characterized in that a plurality of external connecting plates (6) extending outwards are fixed on the outer wall of one end of the steel member (3), a plurality of fastening bolt blocks (7) are fixed on the inner wall of the other end of the steel member at intervals, first through holes (6-1) are formed in the external connecting plates (6), threaded holes (7-1) are formed in the fastening bolt blocks (7), corresponding threaded holes (7-1) are formed in the steel member (3) and are provided with second through holes (3-1) and two when the steel member (3) is assembled, one end, provided with the plurality of fastening bolt blocks (7), of one steel member (3) is inserted into the plurality of external connecting plates (6) of the other steel member, and fixing bolts (11) penetrate through the first through holes (6-1) and the second through holes (3-1) and are locked in the corresponding threaded holes (7).

2. The fabricated steel-concrete structural member according to claim 1, wherein a plurality of outwardly extending tie rods (8) are fixed to an inner wall of one end of the steel member (3) at intervals, at which the outer connecting plate (6) is provided, and the positions of the first through holes (6-1) and the tie rods (8) are staggered from each other.

3. The fabricated steel-concrete structural member according to claim 2, wherein the anchor eye tie bar (8) is integrally formed in a bottom-opened "U" shape, and both ends thereof are welded and fixed to inner walls of both sides of the steel member (3) in a length direction, respectively.

4. The assembled steel-concrete structural member according to claim 1, wherein at least one set of third through holes (3-3) are correspondingly formed in both side edges of one end of the steel member (3) where the fastening bolt blocks (7) are arranged, the both side edges are oppositely arranged along the width direction of the cavity (4) of the steel member (3), and the third through holes (3-3) are located above the fastening bolt blocks (7).

5. The assembled steel-concrete structural member according to claim 1, wherein the plurality of external connection plates (6) are welded and fixed to the end of the steel member (3) and surround the end of the steel member (3), and open grooves (6-2) for increasing the length of the welded joint are opened at the bottoms of the plurality of external connection plates (6).

6. The assembled steel-concrete structural member according to claim 1, wherein four corners of one end of the steel member (3) provided with the fastening bolt blocks (7) are provided with expansion joints (3-2) extending in the height direction of the steel member (3).

7. The assembled steel-concrete structural member according to claim 1, wherein the section of the steel member (3) is any one or a combination of a straight-line structure, an L-shaped structure, a T-shaped structure and a cross-shaped structure.

8. A connection structure of assembled steel-concrete structural members, which comprises a first structural member and a second structural member, wherein the assembled steel-concrete structural members of any one of claims 1 to 7 are adopted for the first structural member and the second structural member, one end of the first structural member, which is provided with a fastening bolt block (7), is inserted into an external connecting plate (6) of the second structural member, a second through hole (3-1) of the first structural member corresponds to a first through hole (6-1) on the external connecting plate (6) of the second structural member, a fixing bolt (11) passes through the first through hole (6-1) and the second through hole (3-1) and is locked in a corresponding threaded hole (7-1) on the fastening bolt block (7) so as to fix the external connecting plate (6) of the second structural member to the end part of the first structural member, and an anchor stirrup (8) of the second structural member is positioned in a cavity (4) of the first structural member.

9. The assembled steel-concrete structural member connecting structure according to claim 8, wherein a threaded bolt (9) is inserted into each set of third through holes (3-3) at the end of the first structural member, the threaded bolt (9) is disposed through the cavity (4) of the first structural member in the width direction, and both ends of the threaded bolt are fixed to the steel member (3) of the first structural member by a locking nut (10).

10. The assembled steel-concrete structural member connecting structure according to claim 9, wherein the threaded bolt (9) is located in the "U" shaped mouth (8-1) of all the tie-bar (8) of the second structural member.

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