Large-span special-shaped steel structure heat preservation joint structure

Abstract

The utility model discloses a large-span special-shaped steel structure heat preservation node structure which comprises a main steel beam, the main steel beam is connected with an auxiliary steel beam through a connecting piece, and a roof pouring structure is arranged between the main steel beam and the auxiliary steel beam. The roof pouring structure comprises an inner decorative surface, a concrete pouring layer, an outer decorative surface, a plurality of fixing holes, a plurality of fixing bolts, a plurality of pressing rods, a plurality of annular grooves, a plurality of sets of grooves and a plurality of sets of limiting baffles. The roof structure has the advantages that the roof pouring structure is arranged between the steel beam and the auxiliary steel beam, and the outer decorative surface is fixedly connected with the concrete pouring layer through the fixing bolts, so that the outer decorative surface can be prevented from cracking and falling off due to temperature shock, and the service life of the outer decorative surface is prolonged. The outer decoration face is composed of a fireproof plate and a heat preservation structural plate, and the fireproof and heat preservation effects can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building steel structure heat preservation, concretely to a large span special-shaped steel structure heat preservation node structure. BACKGROUND

[0002] With the continuous acceleration of urbanization process, the construction industry is also developing and progressing. Among many building structures, steel structure is widely used due to its unique advantages, such as light weight, high strength, fast construction speed, etc. However, under the background of modern architecture pursuing green energy saving, how to improve the heat preservation performance of steel structure building to achieve energy saving and emission reduction has become an important issue.

[0003] The existing patent with application number CN202223362649.7 discloses a large span special-shaped roof steel structure heat preservation node structure, which uses vacuum insulation board and heat preservation filling layer between the concrete pouring layer of the roof to effectively avoid heat transfer caused by air convection, has excellent heat preservation effect, avoids increasing the thickness of the roof, and protects the three-dimensional effect of the large span special-shaped roof. However, in actual use, due to sudden temperature change, such as large diurnal temperature difference, freezing and thawing cycle in winter, material expansion and contraction are caused, which leads to cracking and falling off of the outer decorative surface.

[0004] It should be noted that the above content belongs to the technical cognition of the inventor and does not necessarily constitute the prior art. CONTENT OF THE UTILITY MODEL

[0005] In view of the above defects, the utility model provides a large span special-shaped steel structure heat preservation node structure to solve the heat preservation problem of large span special-shaped steel structure.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A large span special-shaped steel structure heat preservation node structure, comprising a main steel beam, the main steel beam is connected with a vice steel beam through a connecting piece, a roof pouring structure is arranged between the main steel beam and the vice steel beam;

[0008] The roof pouring structure comprises an inner decorative surface, a concrete pouring layer, an outer decorative surface, a plurality of fixing holes, a plurality of fixing bolts, a plurality of pressing rods, a plurality of annular grooves, a plurality of groove groups and a plurality of limiting baffle groups, the inner decorative surface is located at the inner bottom between the main steel beam and the vice steel beam, the concrete pouring layer is located above the inner decorative surface, the outer decorative surface is located above the concrete pouring layer, the plurality of fixing holes are evenly opened on the outer decorative surface, the plurality of fixing bolts are inserted into the plurality of fixing holes, the plurality of pressing rods are movably inserted into the plurality of fixing bolts, the plurality of annular grooves are opened on the outer surfaces of the bottoms of the plurality of pressing rods, the plurality of groove groups are opened on the bottoms of the plurality of fixing bolts, and the plurality of limiting baffle groups are movably hinged in the plurality of groove groups.

[0009] Further, the outer surfaces of the upper ends of the plurality of fixing bolts are respectively threaded, and locking nuts are screwed on the outer threads.

[0010] Further, the bottoms of the plurality of pressing rods are respectively provided with limiting blocks, the outer surfaces of the limiting blocks are respectively sleeved with springs, and the inner bottoms of the plurality of fixing bolts are respectively provided with limiting grooves corresponding to the limiting blocks.

[0011] Further, the upper ends of the plurality of limiting baffles are respectively provided with a plurality of push blocks corresponding to the annular grooves.

[0012] Further, the outer decorative surface comprises a fireproof plate and a heat preservation structure plate.

[0013] The utility model provides a kind of large-span special-shaped steel structure heat preservation node structure, with the following beneficial effects, by being provided with roof pouring structure between steel beam and auxiliary steel beam, outer decorative surface is connected and fixed with concrete pouring layer by using the outer decorative surface through a plurality of fixing bolts, it can prevent outer decorative surface from cracking and falling due to temperature change, and outer decorative surface is composed of fireproof plate and heat preservation structure plate, which can achieve fireproof and heat preservation effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a large-span special-shaped steel structure heat preservation node structure schematic diagram of the utility model.

[0015] Figure 2 It is a roof pouring structure side sectional view of the utility model.

[0016] Figure 3 It is a fixing bolt sectional view of the utility model.

[0017] Figure 4 It is a large-span special-shaped steel structure heat preservation node structure of the utility model Figure 3 It is a local enlarged view of A in the utility model.

[0018] In the figure: 1, main steel beam; 2, link member; 3, auxiliary steel beam; 4, inner decorative surface; 5, concrete pouring layer; 6, outer decorative surface; 7, fixed hole; 8, fixing bolt; 9, pressing rod; 10, annular groove; 11, groove; 12, limiting baffle; 13, outer thread; 14, locking nut; 15, limiting block; 16, spring; 17, limiting groove; 18, push block; 19, fireproof plate; 20, heat preservation structure plate. DETAILED DESCRIPTION

[0019] The utility model will be specifically described below in conjunction with the drawings, such as Figures 1-4As shown: A thermal insulation node structure for a large-span irregular steel structure includes a main steel beam 1, which is connected to a secondary steel beam 3 via a connector 2. A roof casting structure is provided between the main steel beam 1 and the secondary steel beam 3. The roof casting structure includes an inner decorative surface 4, a concrete pouring layer 5, an outer decorative surface 6, several fixing holes 7, several fixing bolts 8, several pressing rods 9, several annular grooves 10, several sets of grooves 11, and several sets of limiting baffles 12. The inner decorative surface 4 is located at the bottom between the main steel beam 1 and the secondary steel beam 3. The concrete pouring layer 5 is located above the inner decorative surface 4, and the outer decorative surface 6 is located above the concrete pouring layer 5. Several fixing holes 7 are evenly distributed on the outer decorative surface 6, and several fixing bolts 8 are inserted into the fixing holes 7. Several pressing rods 9 are movably inserted into several fixing bolts 8. Several annular grooves 10 are opened on the outer surface of the bottom of several pressing rods 9. Several sets of grooves 11 are opened on both sides of the bottom of several fixing bolts 8. Several sets of limiting baffles 12 are movably hinged in several sets of grooves 11. The outer surface of the upper end of several fixing bolts 8 is respectively tapped with external threads 13, and locking nuts 14 are suspended on the external threads 13. Limiting blocks 15 are respectively installed at the bottom of several pressing rods 9. Springs 16 are fitted on the outer surface of the limiting blocks 15, and limiting grooves 17 corresponding to the limiting blocks 15 are respectively opened in the bottom of several fixing bolts 8. A toggle block 18 corresponding to the annular groove 10 is respectively installed on one side of the upper end of several sets of limiting baffles 12. The outer decorative surface 6 includes a fireproof board 19 and a thermal insulation structural board 20.

[0020] The working principle of this implementation plan is as follows: the main steel beam 1 is connected to the secondary steel beam 3 through the connector 2, and foamed concrete is poured into the grooves on the surface of the main steel beam 1 and the secondary steel beam 2. This is the existing technology.

[0021] During roof pouring: the inner decorative surface 4 is located at the bottom between the main steel beam 1 and the secondary steel beam 3; the concrete pouring layer 5 is located above the inner decorative surface 4; the outer decorative surface 6 is located above the concrete pouring layer 5; several fixing holes 7 are evenly distributed on the outer decorative surface 6; several fixing bolts 8 are inserted into the fixing holes 7; several pressing rods 9 are movably inserted into the fixing bolts 8; several annular grooves 10 are formed on the bottom outer surface of the pressing rods 9; and several sets of grooves 11 are formed on both sides of the bottom of the fixing bolts 8. Several sets of limiting baffles 12 are movably hinged within several sets of grooves 11. Several fixing bolts 8 have external threads 13 tapped on their upper outer surfaces, and locking nuts 14 are screwed onto the external threads 13. Several pressing rods 9 have limiting blocks 15 installed at their bottoms, with springs 16 fitted onto the outer surfaces of the limiting blocks 15. Several fixing bolts 8 have limiting grooves 17 corresponding to the limiting blocks 15 at their inner bottoms. Several sets of limiting baffles 12 have actuating blocks 18 corresponding to the annular grooves 10 installed on one side of their upper ends. Figure 3 and Figure 4As shown, the user presses the pressing rod 9 downward, drives the limiting block 15 to move downward, at this time, the spring 16 is compressed, the annular groove 10 can push a set of limiting baffle 12 into a set of groove 11 through a set of push block 18, then, inserts the fixing bolt 8 into the fixed hole 7 on the outer decorative surface 6, loosens the pressing rod 9, the spring 16 resets, can drive a set of limiting baffle 12 to open, finally, suspends and twists the locking nut 14, the outer decorative surface 6 is connected and fixed with the concrete pouring layer 5 through a plurality of fixing bolts 8, can prevent the outer decorative surface 6 from cracking and falling due to sudden temperature change, the outer decorative surface 6 is composed of fireproof plate and thermal insulation structure plate, can play the fireproof and thermal insulation effect.

[0022] The above technical scheme only embodies the preferred technical scheme of the utility model technical scheme, and some changes made by the person skilled in the art to some parts thereof all embody the principle of the utility model and belong to the protection scope of the utility model.

Claims

1. A thermal insulation node structure for a large-span irregular steel structure, comprising a main steel beam (1), wherein the main steel beam (1) is connected to a secondary steel beam (3) via a connector (2), characterized in that, A roof casting structure is provided between the main steel beam (1) and the secondary steel beam (3); The roof casting structure includes an inner decorative surface (4), a concrete pouring layer (5), an outer decorative surface (6), several fixing holes (7), several fixing bolts (8), several pressing rods (9), several annular grooves (10), several sets of grooves (11), and several sets of limiting baffles (12). The inner decorative surface (4) is located at the bottom between the main steel beam (1) and the secondary steel beam (3). The concrete pouring layer (5) is located above the inner decorative surface (4). The outer decorative surface (6) is located at... Above the concrete pouring layer (5), several fixing holes (7) are evenly opened on the outer decorative surface (6), several fixing bolts (8) are inserted into several fixing holes (7), several pressing rods (9) are movably inserted into several fixing bolts (8), several annular grooves (10) are opened on the bottom outer surface of several pressing rods (9), several sets of grooves (11) are opened on both sides of the bottom of several fixing bolts (8), and several sets of limiting baffles (12) are movably hinged in several sets of grooves (11).

2. The thermal insulation node structure for a large-span irregular steel structure according to claim 1, characterized in that, Several fixing bolts (8) have external threads (13) tapped on their upper outer surfaces, and locking nuts (14) are screwed onto the external threads (13).

3. The thermal insulation node construction for a large-span irregular steel structure according to claim 1, characterized in that, Several pressing rods (9) are respectively equipped with limit blocks (15) at the bottom. The outer surface of the limit blocks (15) is fitted with springs (16), and the bottom of several fixing bolts (8) is respectively opened with limit grooves (17) corresponding to the limit blocks (15).

4. The thermal insulation node construction for a large-span irregular steel structure according to claim 1, characterized in that, Several sets of limit baffles (12) have a toggle block (18) corresponding to the annular groove (10) installed on one side of their upper ends.

5. The thermal insulation node structure for a large-span irregular steel structure according to claim 1, characterized in that, The exterior decorative surface (6) includes a fireproof board (19) and a thermal insulation structural board (20).

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