阅读说明：本技术 一种内部变截面钢混组合结构简支梁 (Internal variable cross-section steel-concrete composite structure simply supported beam ) 是由 张文格 郭向荣 万水 夏绍见 张璐璠 王素灵 于 2020-06-24 设计创作，主要内容包括：一种内部变截面钢混组合结构简支梁,涉及钢-混凝土组合结构领域,混凝土板(8)覆于上翼缘板A(1)和上翼缘板B(15)的顶部且包覆栓钉连接件A(5)和栓钉连接件B(11),条状混凝土(3)伸入腹板A(2)、腹板B(13)和弧形板A(4)围成的通槽(17)内且包覆栓钉支杆A(9)和栓钉支杆B(16),弧形混凝土条(7)的底面和弧形板A(4)的顶面固接；本发明根据简支梁的受弯特性,在腹板A和腹板B的相对面分别设置弧形板A和弧形板B,并将弧形板A和弧形板B固接在一起,使得简支梁梁体刚度的变化趋势与弯矩变化趋势一致,同时增大了混凝土块和钢骨架的接触面积,减小了连接界面的滑移。(A simple supporting beam with an internal variable cross-section steel-concrete composite structure relates to the field of steel-concrete composite structures, wherein a concrete plate (8) covers the tops of an upper flange plate A (1) and an upper flange plate B (15) and covers a stud connecting piece A (5) and a stud connecting piece B (11), a strip-shaped concrete (3) extends into a through groove (17) formed by enclosing a web plate A (2), a web plate B (13) and an arc plate A (4) and covers a stud supporting rod A (9) and a stud supporting rod B (16), and the bottom surface of an arc-shaped concrete strip (7) is fixedly connected with the top surface of the arc plate A (4); according to the bending characteristic of the simply supported beam, the arc-shaped plate A and the arc-shaped plate B are respectively arranged on the opposite surfaces of the web plate A and the web plate B and are fixedly connected together, so that the change trend of the rigidity of the simply supported beam body is consistent with the change trend of the bending moment, the contact area of the concrete block and the steel skeleton is increased, and the slippage of a connection interface is reduced.)

1. The utility model provides an inside variable cross section steel reinforced concrete integrated configuration simply supported roof beam which characterized by: including concrete block (12) and steel skeleton (18), steel skeleton (18) are including bottom plate (10), web A (2) and web B (13) are at the top surface interval parallel arrangement of bottom plate (10), be equipped with arc A (4) on web A (2) that lie in web A (2) and web B (13) opposite face middle part, be equipped with arc B (6) on web B (13) that lie in web A (2) and web B (13) opposite face middle part, the top surface of arc B (6) and the bottom surface rigid coupling of arc A (4), be equipped with a plurality of peg branch A (9) at the interval on web A (2) lateral wall that lie in arc A (4) top, be equipped with a plurality of peg branch B (16) at the interval on web B (13) lateral wall that lie in arc B (6) top, be equipped with respectively on the top of web A (2) and web B (13) to web A (2) and web B (13) direction back to the back of the body mutually An extended upper flange plate A (1) and an upper flange plate B (15), a plurality of stud connecting pieces A (5) are arranged at intervals on the top of the upper flange plate A (1), a plurality of pin connectors B (11) are arranged at intervals on the top of the upper flange plate B (15), the concrete block (12) comprises a concrete plate (8), the concrete slab is characterized in that strip concrete (3) is arranged in the middle of the bottom surface of the concrete slab (8), an arc concrete strip (7) is arranged at the bottom of the strip concrete (3), the concrete slab (8) covers the tops of the upper wing edge plate A (1) and the upper wing edge plate B (15) and covers a stud connecting piece A (5) and a stud connecting piece B (11), the strip concrete (3) extends into a through groove (17) formed by enclosing a web plate A (2), a web plate B (13) and an arc plate A (4) and covers a stud supporting rod A (9) and a stud supporting rod B (16), and the bottom surface of the arc concrete strip (7) is fixedly connected with the top surface of the arc plate A (4).

2. The internal variable cross-section steel-concrete composite structure simply supported beam as claimed in claim 1, wherein: a connecting rod (14) is arranged between the stud connecting piece A (5) and the stud connecting piece B (11).

3. The internal variable cross-section steel-concrete composite structure simply supported beam as claimed in claim 1, wherein: the web A (2) and the web B (13) are flat plates respectively; or a corrugated steel web.

4. The internal variable cross-section steel-concrete composite structure simply supported beam as claimed in claim 1, wherein: the stud support rod A (9) and the web plate A (2) are in welding or threaded connection, and the stud support rod B (16) and the web plate B (13) are in welding or threaded connection.

5. The internal variable cross-section steel-concrete composite structure simply supported beam as claimed in claim 1, wherein: the stud connecting piece A (5) is in welding or threaded connection with the upper flange plate A (1), and the stud connecting piece B (11) is in welding or threaded connection with the upper flange plate B (15).

6. The internal variable cross-section steel-concrete composite structure simply supported beam as claimed in claim 1, wherein: the concrete block (12) is made of cement concrete.

Technical Field

The invention relates to the field of steel-concrete composite structures, in particular to a simply supported beam with an internal variable cross-section steel-concrete composite structure.

Background

The cross section of a traditional simply supported beam of a steel-concrete composite structure mostly adopts an equal cross section configuration and is arranged according to the maximum bending resistance requirement of a midspan. The bending characteristic of the simply supported beam is that the bending moment is gradually reduced from the midspan to two ends, so that the tensile capacity of the material cannot be fully exerted, and the material utilization rate is low. On the other hand, in the traditional simply supported beam with the steel-concrete composite structure, the connection interface of steel and concrete is small, the shearing force on the interface is large, and relative sliding and lifting are easy to generate, so that a complicated shearing force connecting piece structure needs to be arranged.

Disclosure of Invention

In order to overcome the defects in the background art, the invention discloses a simply supported beam with an internal variable cross-section steel-concrete composite structure.

In order to realize the purpose, the invention adopts the following technical scheme:

a simple supporting beam with an internal variable cross-section steel-concrete composite structure comprises a concrete block and a steel skeleton, wherein the steel skeleton comprises a bottom plate, a web plate A and a web plate B, the web plate A and the web plate B are arranged in parallel at the top surface of the bottom plate at intervals, an arc plate A is arranged on the web plate A positioned in the middle of the opposite surface of the web plate A and the web plate B, the web plate B positioned in the middle of the opposite surface of the web plate A and the web plate B is provided with an arc plate B, the top surface of the arc plate B is fixedly connected with the bottom surface of the arc plate A, a plurality of stud supporting rods A are arranged on the side wall of the web plate A above the arc plate A at intervals, a plurality of stud supporting rods B are arranged on the side wall of the web plate B above the arc plate B at intervals, an upper flange plate A and an upper flange plate B extending towards the opposite directions of the web plate A and the web plate B are respectively arranged at the top ends of the web plate A and the web plate B, a plurality of, the concrete piece includes concrete slab, be equipped with strip concrete at the middle part of concrete slab bottom surface, be equipped with the arc concrete strip in the bottom of strip concrete, concrete slab covers in top and cladding peg connecting piece A and peg connecting piece B of top flange A and top flange B, strip concrete stretches into web A, the logical inslot that web B and arc A enclose and cladding peg branch A and peg branch B, the bottom surface of arc concrete strip and the top surface rigid coupling of arc A.

The simple supporting beam with the internal variable cross-section steel-concrete composite structure is characterized in that a connecting rod is arranged between the stud connecting piece A and the stud connecting piece B.

The web A and the web B are flat plates respectively; or a corrugated steel web.

The simple beam with the internal variable cross-section steel-concrete composite structure is characterized in that the stud support rod A and the web plate A are in welding or threaded connection, and the stud support rod B and the web plate B are in welding or threaded connection.

The internal variable cross-section steel-concrete composite structure simply supported beam is characterized in that the stud connecting piece A and the upper flange plate A are in welding or threaded connection, and the stud connecting piece B and the upper flange plate B are in welding or threaded connection.

The internal variable cross-section steel-concrete composite structure simply supported beam is characterized in that the concrete block is made of cement concrete.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

according to the simply supported beam with the internal variable cross-section steel-concrete composite structure, the arc-shaped plate A and the arc-shaped plate B are respectively arranged on the opposite surfaces of the web plate A and the web plate B according to the bending characteristic of the simply supported beam, and the arc-shaped plate A and the arc-shaped plate B are fixedly connected together, so that the change trend of the rigidity of the simply supported beam body is consistent with the change trend of bending moment, meanwhile, the contact area of a concrete block and a steel skeleton is increased, the slippage of the connection interface of the concrete block and the steel skeleton is reduced, and the safety of the steel-concrete connection interface is improved; meanwhile, the concrete blocks are prevented from being arranged in a tension area, the cracking of the concrete is prevented, and in addition, the steel skeleton and the auxiliary structures thereof can be prefabricated in a factory and used as supports during construction, so that the construction is convenient; the invention has the advantages of simple and reasonable structure, rapid installation and construction, easy operation, strong practicability, energy saving and consumption reduction, and great market popularization value.

Drawings

FIG. 1 is a schematic view of an assembly structure of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a schematic structural diagram of a steel skeleton according to the present invention;

fig. 4 is a schematic structural diagram of the present invention.

In the figure: 1. an upper flange plate A; 2. a web A; 3. strip concrete; 4. an arc-shaped plate A; 5. a stud connector A; 6. an arc-shaped plate B; 7. an arc-shaped concrete strip; 8. a concrete slab; 9. a stud strut A; 10. a base plate; 11. a stud connector B; 12. a concrete block; 13. a web B; 14. a connecting rod; 15. an upper flange plate B; 16. a stud strut B; 17. a through groove; 18. a steel skeleton.

Detailed Description

The present invention will be explained in more detail by the following examples, which are not intended to limit the present invention, and all changes and modifications within the scope of the present invention are intended to be protected by the disclosure of the present invention;

the internal variable cross-section steel-concrete composite structure simply supported beam combined with the attached drawings 1-4 comprises a concrete block 12 and a steel skeleton 18, wherein the steel skeleton 18 comprises a bottom plate 10, a web A2 and a web B13, the web A2 and the web B13 are arranged on the top surface of the bottom plate 10 at intervals in parallel, and the web A2 and the web B13 are flat plates respectively; or corrugated steel web plate, there are arc A4 on the web plate A2 located in the middle of the opposite face of web A2 and web B13, there are arc B6 on the web plate B13 located in the middle of the opposite face of web A2 and web B13, the top surface of arc B6 is fixed to the bottom surface of arc A4, there are several pin supporting rods A4 on the side wall of web A4 located above arc A4 at intervals, there are several pin supporting rods B4 on the side wall of web B4 located above arc B4 at intervals, said pin supporting rod A4 and web A4 are welded or screwed, said pin supporting rod B4 and web B4 are welded or screwed, there are several upper flange A4 and upper flange B4 extending towards the opposite direction of web A4 and web B4 on the top of web A4 and web B4, there are several pin connectors 4 on the top of upper flange A4 at intervals, there are several pins 4B 4 and several pin connectors 4 are several pins 4 on the top of upper flange B4, the bolt connecting piece A5 and the upper flange plate A1 are connected in a welding or threaded mode, the bolt connecting piece B11 and the upper flange plate B15 are connected in a welding or threaded mode, the connecting rod 14 is arranged between the bolt connecting piece A5 and the bolt connecting piece B11, the concrete block 12 comprises a concrete plate 8, the concrete block 12 is made of cement concrete, the strip-shaped concrete 3 is arranged in the middle of the bottom surface of the concrete plate 8, the arc-shaped concrete strip 7 is arranged at the bottom of the strip-shaped concrete 3, the concrete plate 8 covers the tops of the upper flange plate A1 and the upper flange plate B15 and covers the bolt connecting piece A5 and the bolt connecting piece B11, the strip-shaped concrete 3 extends into a through groove 17 defined by the web plate A2, the web plate B13 and the arc-shaped plate A4 and covers the bolt supporting rod A9 and the bolt supporting rod B16, and the bottom surface of the arc-shaped concrete strip 7 is fixedly connected with the top surface of the arc-shaped plate A4.

When the simply supported beam with the internal variable cross-section steel-concrete composite structure is used, the steel skeleton 18 is prefabricated, the arc-shaped plate A4 is welded to the middle of the web A2, the arc-shaped plate B6 is welded to the middle of the web B13, the web A2 and the web B13 are vertically welded to the top surface of the bottom plate 10 at intervals, the top surface of the arc-shaped plate B6 and the bottom surface of the arc-shaped plate A4 are welded together, a plurality of stud supporting rods A9 are welded or screwed to the upper portion of the web A2 at intervals, a plurality of stud supporting rods B16 are welded or screwed to the upper portion of the web B13 at intervals, a plurality of stud connecting pieces A5 are welded or screwed to the top of the upper flange A1 at intervals, a plurality of stud connecting pieces B11 are welded or screwed to the top of the upper flange B15 at intervals, a connecting piece A5 and a stud connecting piece B11 are welded or screwed to the connecting rod 14, after the steel skeleton 18 is prefabricated, the steel skeleton 18 is transported to the site and hoisted in place, and the, Concrete is cast and formed on the top of the upper flange plate B15, a concrete block 12 is formed after the concrete is dried, and the concrete block 12 and the steel framework 18 are combined to form the invention.

The present invention is not described in detail in the prior art.