CN113898066A

CN113898066A - Double-steel-plate concrete composite structure and construction method thereof

Info

Publication number: CN113898066A
Application number: CN202111183444.XA
Authority: CN
Inventors: 赵唯以; 卫林强; 徐文腾; 王琳
Original assignee: Qingdao University of Technology
Current assignee: Qingdao University of Technology
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-01-07
Anticipated expiration: 2041-10-11
Also published as: CN113898066B

Abstract

The utility model provides a double steel plate concrete composite structure and a construction method thereof, wherein the double steel plate concrete composite structure comprises: the connecting device comprises two steel plates which are oppositely arranged and a plurality of pairs of connecting pieces which are arranged between the two steel plates in a row and column shape; concrete is filled between the two steel plates; the middle part of the connecting piece is provided with bayonets, and the bayonets of the same pair of connecting pieces are opposite to each other and form a jack; each row of connecting pieces or each row of connecting pieces are inserted with pin bolts which sequentially penetrate through the plurality of jacks; the two ends of the connecting piece are respectively a connecting section and a clamping section, and the clamping section comprises a limiting piece; in the same pair of connecting pieces, the connecting section of one connecting piece is inserted into the limiting piece of the other connecting piece; in the same pair of connecting members, the connecting sections of the two connecting members are welded to the two steel plates, respectively.

Description

Double-steel-plate concrete composite structure and construction method thereof

Technical Field

The disclosure relates to the technical field of building structures, in particular to a double-steel-plate concrete composite structure and a construction method thereof.

Background

The double-steel-plate concrete composite structure is a composite structure formed by double-layer steel plates, filled concrete and connecting pieces. The structural form can fully utilize the material performance of steel and concrete, has the characteristics of high bearing capacity, convenience in construction, good tightness, collision resistance, explosion resistance and the like, is widely applied to projects such as nuclear power plants, high-rise buildings, offshore platforms and the like in recent years, and has a wide prospect, for example, three nuclear power stations, Haiyang nuclear power stations and salt city television towers in China all adopt the structural form.

The reliable connection between the double-layer steel plates and between the steel plates and the concrete is the premise of ensuring that all parts of the double-steel-plate concrete composite structure are stressed and deformed coordinately. In the prior art, mechanical connection is adopted, namely, the inner sides of the steel plates are welded with connecting pieces such as studs, steel bars and rib plates, or through bolts are adopted, so that the steel plates and the concrete are fully combined.

In the prior art, the connection mode of the connecting piece and the steel plate can be divided into double-side connection and single-side connection. When the double-side connection is carried out, because the distance between the double-layer steel plates is limited, welding operation can not be carried out on the inner sides at the same time, holes need to be formed in the steel plates when the double-side connection is adopted, the structure is weakened to a certain extent, plug welding is carried out on the outer parts or bolt connection is adopted, and the structural appearance and the use are also influenced to a certain extent; when unilateral is connected, the double-layer steel plates can be processed respectively, construction is convenient, but the connecting piece can not restrain relative movement of the double-side steel plates in all directions, effective connection can not be formed, rigidity of the structure in a certain direction is poor, and relative movement is easy to occur in a construction stage and a use stage.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present disclosure provides a double steel plate concrete composite structure and a construction method thereof.

According to one aspect of the present disclosure, a double steel sheet concrete composite structure includes: the connecting device comprises two steel plates which are oppositely arranged and a plurality of pairs of connecting pieces which are arranged between the two steel plates in a row and column shape; the cavity between the two steel plates is used for filling concrete;

the middle part of the connecting piece is provided with a bayonet, and the bayonets of the same pair of connecting pieces are matched and form a jack;

a pin bolt is inserted into each row of the jacks, and the pin bolts sequentially penetrate through the jacks;

the two ends of the bayonet of the connecting piece are respectively a connecting section and a clamping section, the connecting section of the connecting piece is fixed on the steel plate, and the end part of the clamping section, far away from the bayonet, is also provided with a limiting piece;

in the same pair of connecting pieces, the connecting section of one connecting piece is inserted into the limiting piece of the other connecting piece to form a pair of connecting pieces which are mutually limited.

According to at least one embodiment of the present disclosure, the limiting member is provided with a notch for the connection section to enter, and the direction of the notch is opposite to the opening direction of the bayonet.

According to at least one embodiment of the present disclosure, in the same pair of connectors, two of the notches are arranged in mirror symmetry.

According to at least one embodiment of the present disclosure, the center of the insertion hole is located at a central plane between the two steel plates.

According to at least one embodiment of the present disclosure, the connector is a rebar; the reinforcing bar extends along the direction perpendicular to the surface of the steel plate, and the middle part of the reinforcing bar is bent to form the bayonet.

According to at least one embodiment of this disclosure, locating part and connecting piece integrated into one piece, the tip bending type of joint section forms U type locating part, the plane perpendicular to of locating part joint section, the opening of U type forms the breach.

According to at least one embodiment of the present disclosure, the limiting member is a clamping plate perpendicular to the clamping section;

u type groove has been seted up to the joint board, the opening in U type groove forms the breach.

According to at least one embodiment of the present disclosure, the stopper is an L-shaped plate;

the L type cross-section perpendicular to of L template the joint section, the joint section is fixed in the medial surface of L template, the L type opening of L template forms the breach.

A construction method of a double steel plate concrete composite structure according to any one of the preceding claims, comprising the following steps:

cutting the two steel plates, and processing a connecting piece and a pin bolt;

respectively marking lines on the two steel plates, and marking the positions of the connecting pieces on the steel plates;

welding the connecting section of the connecting piece to the steel plate;

moving the two steel plates to enable the connecting sections of one connecting piece to be clamped into the limiting piece of the other connecting piece to form a pair of connecting pieces which are limited mutually;

inserting the pin bolt into each row or each column of the inserting holes respectively;

and pouring concrete between the two steel plates.

According to at least one embodiment of the present disclosure, in the step of welding the connection section of the connection member to the steel plate, the connection member is welded to the steel plate by a stud welding machine.

The beneficial effects of this disclosure are:

1. the connecting piece can be processed in batches in a factory and is welded with the single-side steel plate through the stud welding machine, so that the connection is reliable and the construction is convenient;

2. holes are not formed in the steel plates, the structure is not weakened, the appearance and the use of the structure are not influenced, complete restraint is provided for the steel plates on the two sides, and the problem that the steel plates on the two sides cannot be completely restrained by the existing single-side connection scheme is solved;

3. through the thickness of the length control structure of connecting piece, the steel construction has fine wholeness after the equipment, need not extra support can regard as the template of concrete.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic view of a double steel sheet concrete composite structure according to an embodiment of the present disclosure.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a schematic view of the connectors in the double steel plate concrete composite structure shown in fig. 1 when assembled.

Fig. 4 is a schematic view of the first embodiment in the double steel sheet concrete composite structure shown in fig. 1.

Fig. 5 is a schematic view of a second embodiment of the double steel sheet concrete composite structure shown in fig. 1.

Fig. 6 is a schematic view of a third embodiment of the double steel sheet concrete composite structure shown in fig. 1.

Fig. 7 is a schematic flow chart of a construction method of the double steel plate concrete composite structure shown in fig. 1.

Reference numerals: 1-a steel plate; 2-concrete; 3-a connector; 31-bayonet; 32-notch; 33-a connecting segment; 34-a clamping section; 4-a jack; 5-pin bolt; 6-a clamping and connecting plate; 7-L type plate.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to a first embodiment of the present disclosure, as shown in fig. 1 to 3, there is provided a double steel plate concrete composite structure including: the connecting device comprises two steel plates 1 which are oppositely arranged and a plurality of pairs of connecting pieces 3 which are arranged between the two steel plates 1 and are arranged in a row and column shape; the cavity between the two steel plates 1 is filled with concrete 2; the middle part of the connecting piece 3 is provided with a bayonet 31, and the bayonets 31 of the same pair of connecting pieces 3 are matched and form a jack 4; a pin bolt 5 is inserted into each row or each column of the jacks 4, and the pin bolts 5 sequentially penetrate through the jacks 4; the two ends of the bayonet 31 of the connecting piece 3 are respectively a connecting section and a clamping section, the connecting section of the connecting piece 3 is fixed on the steel plate 1, and the end part of the clamping section far away from the bayonet 31 is also provided with a limiting piece; in the same pair of connecting pieces 3, the connecting section of one connecting piece 3 is inserted into the limiting piece of the other connecting piece 3 to form a pair of connecting pieces which are mutually limited.

The limiting pieces limit the free movement of the two steel plates 1 in the plate surface direction; after the pin bolt 5 is inserted into the insertion hole 4, the free movement of the two steel plates 1 in the direction vertical to the plate surfaces is limited, so that the translation freedom degrees of the two steel plates 1 in all directions are restrained.

According to an embodiment of the present disclosure, the limiting member is provided with a notch 32 for the connection section to enter, and the direction of the notch 32 is opposite to the opening direction of the bayonet 31. Through seting up breach 32, linkage segment 33 moves along 1 face direction of steel sheet, can insert the locating part through breach 32 in, like this, connecting piece 3 can weld on steel sheet 1 earlier, the processing of being convenient for.

In one embodiment, the two notches 32 are arranged in mirror symmetry, which facilitates the engagement of the connecting section 33 into the limiting member 3.

According to one embodiment of the present disclosure, the connector 3 is a steel bar; the reinforcing bar extends along 1 face direction of perpendicular steel sheet, and the bayonet 31 is formed in the bending of reinforcing bar middle part. The middle part of the reinforcing steel bar can be bent into a V-shaped or U-shaped bayonet 31, and the hole diameter of the insertion hole 4 formed by the two bayonets 31 is slightly larger than the diameter of the pin 5 so as to allow the pin 5 to pass through the insertion hole 4.

In one embodiment, the centers of the insertion holes 4 are located in a central plane between the two steel plates 1, the central plane being a central plane of a cavity formed between the two steel plates, and the central plane is equidistant from the plate surfaces of the two steel plates.

In one embodiment, one end of the rebar is a straight segment for insertion of a stop.

Several specific structures for implementing the position-limiting element of the clamping section 34 are listed below:

(1) as shown in fig. 3, the limiting member and the connecting member 3 are integrally formed, the end of the clamping section is bent to form a rectangular limiting member with an opening, the plane of the rectangular limiting member is perpendicular to the clamping section 34, and the opening of the rectangular limiting member forms a gap 32.

(2) As shown in fig. 4, the limiting member and the connecting member 3 are integrally formed, the end of the clamping section is bent to form a U-shaped limiting member, the plane of the limiting member is perpendicular to the clamping section 34, and the opening of the U-shaped limiting member forms a notch 32.

(3) As shown in fig. 5, the limiting member is a clamping plate 6 perpendicular to the clamping section 34; the clamping plate 6 is provided with a U-shaped groove, and a notch 32 is formed in the opening of the U-shaped groove.

(4) As shown in fig. 6, the limiting member is an L-shaped plate 7; l type cross-section perpendicular to joint section 34 of L template 7, the medial surface of joint section fixed in L template 7, the L type opening of L template 7 forms breach 32. The L-shaped plate 7 can be realized by angle steel.

The present disclosure also provides a construction method of the double-steel-plate concrete composite structure according to any one of the preceding claims, including the following steps:

cutting two steel plates 1, and processing a connecting piece 3 and a pin bolt 5;

respectively marking lines on the two steel plates 1, and marking the positions of the connecting pieces 3 on the steel plates 1;

welding the connecting section 33 of the connecting piece 3 to the steel plate 1;

moving the two steel plates 1 to enable the same pair of connecting pieces 3 to correspond to each other and enable the connecting section 33 of one connecting piece to be clamped into the limiting piece of the other connecting piece to form a pair of connecting pieces limited mutually;

inserting the pin 5 into each row or each column of the jacks 4 respectively;

concrete 2 is poured between the two steel plates 1.

According to one embodiment of the present disclosure, in the step of welding the connection segment 33 of the connection member 3 to the steel plate 1, the connection member 3 is welded to the steel plate 1 by a stud welding machine.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used 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 the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. Two steel sheet concrete integrated configuration, its characterized in that includes: the connecting device comprises two steel plates (1) which are arranged oppositely and a plurality of pairs of connecting pieces (3) which are arranged between the two steel plates (1) and are arranged in a row and column shape; the cavity between the two steel plates (1) is used for filling concrete (2);

the middle part of the connecting piece (3) is provided with a bayonet (31), and the bayonets (31) of the same pair of connecting pieces (3) are matched to form a jack (4);

a pin bolt (5) is inserted into each row or each column of the jacks (4), and the pin bolts (5) sequentially penetrate through the jacks (4);

the two ends of the bayonet (31) of the connecting piece (3) are respectively a connecting section (33) and a clamping section, the connecting section (33) of the connecting piece (3) is fixed on the steel plate (1), and a limiting piece is further arranged at the end part, far away from the bayonet (31), of the clamping section;

in the same pair of connecting pieces (3), the connecting section (33) of one connecting piece (3) is inserted into the limiting piece of the other connecting piece (3) to form a pair of connecting pieces which are mutually limited.

2. The double-steel-plate concrete composite structure according to claim 1, wherein the limiting member is provided with a notch (32) for the connecting section (33) to enter, and the direction of the notch (32) is opposite to the opening direction of the bayonet (31).

3. A double steel sheet concrete composite structure according to claim 2, characterised in that in the same pair of connecting elements (3) both said notches (32) are arranged mirror-symmetrically.

4. The double steel plate concrete composite structure according to claim 1, wherein the centers of said insertion holes are located in the center plane between two of said steel plates.

5. A double steel sheet concrete composite structure according to claim 2, characterised in that said connectors (3) are reinforcing bars; the reinforcing bar extends along perpendicular steel sheet (1) face direction, reinforcing bar middle part bending type becomes bayonet socket (31).

6. The double-steel-plate concrete composite structure according to claim 5, wherein the limiting member and the connecting member (3) are integrally formed, the end of the clamping section is bent to form a U-shaped limiting member, the plane of the limiting member is perpendicular to the clamping section (34), and the opening of the U-shaped limiting member forms the notch (32).

7. The double steel plate concrete composite structure according to claim 5, wherein said limiting member is a clamping plate (6) perpendicular to said clamping section (34);

u-shaped grooves are formed in the clamping plate (6), and the notches (32) are formed in openings of the U-shaped grooves.

8. -double steel sheet concrete composite structure according to claim 5, characterised in that said limit stop is an L-shaped plate (7);

the L type cross-section perpendicular to of L template (7) joint section (34), the joint section is fixed in the medial surface of L template (7), the L type opening of L template (7) forms breach (32).

9. A construction method of a double steel plate concrete composite structure according to any one of claims 2-8, characterized by comprising the steps of:

cutting two steel plates (1), and processing a connecting piece (3) and a pin bolt (5);

respectively marking lines on the two steel plates (1), and marking the positions of the connecting pieces (3) on the steel plates (1);

welding the connecting section (33) of the connecting piece (3) to the steel plate (1);

moving the two steel plates (1) to enable the same pair of connecting pieces (3) to correspond to each other, and enabling the connecting section (33) of one connecting piece to be clamped into the limiting piece of the other connecting piece to form a pair of connecting pieces limited mutually;

inserting the pin bolts (5) into the jacks (4) in each row or each column respectively;

concrete (2) is poured between the two steel plates (1).

10. The construction method of a double steel plate concrete composite structure according to claim 9, characterized in that in the step of welding the connection section (33) of the connection member (3) to the steel plate (1), the connection member (3) is welded to the steel plate (1) by a stud welding machine.