Truss and large-span steel beam mixed mounting structure

Abstract

The utility model discloses a truss and large-span steel beam mixed installation structure which comprises a set of temporary supporting frames, hanging steel beams, large-span steel beams, truss hanging columns, truss stand columns and a truss. The temporary support frame comprises a roadbed box, a plurality of groups of support standard knots, a group of lower conversion knots and a group of upper conversion knots; the roadbed box is arranged on a basement roof of-0.1 m; the supporting standard knots are arranged in a stacked mode, and joints are arranged between every two supporting standard knots for connection. The lower part of the lowermost supporting standard knot is connected with a lower conversion knot through a node; the lower conversion joint is welded and fixed with the roadbed box; the upper portion of the uppermost supporting standard knot is connected with the upper conversion knot through a node. According to the truss and large-span steel beam mixed installation structure, the truss is manufactured in a segmented mode, the truck crane is installed in a segmented mode, the auxiliary temporary support is arranged, the problem that large hoisting machinery cannot be arranged due to insufficient bearing on an installation site is solved, and construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to truss installation field, especially relates to a truss and large -span steel beam mixed installation structure. BACKGROUND

[0002] With the development of social economy, various novel structure systems are constantly put out, the application of steel structure truss can provide larger span space and bearing capacity, simultaneously, because large -span steel structure truss can satisfy the requirement of modern building to large space and high bearing capacity, the demand of its construction technology increases, and the application is more and more widely.

[0003] However, because truss arch control and other installation precision requirements are high, structure straight line span is big, simultaneously because truss weight is too big, installation site bearing is easy to appear the situation of deficiency, so as to lead to the problem that large -scale hoisting machinery often cannot be set, increase construction cost.

[0004] Therefore, the above problems are urgent to be solved. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming above insufficient, and the utility model aims at providing a truss and large -span steel beam mixed installation structure, truss adopts sectional production, automobile hoist sectional installation, and sets up temporary support frame and support steel pipe auxiliary temporary support, solve the problem that large -scale hoisting machinery cannot be set because of installation site bearing deficiency, improve construction efficiency.

[0006] Technical solution: In order to achieve the above object, the utility model provides a truss and large -span steel beam mixed installation structure, include: a group of temporary support frame, hang steel beam, large -span steel beam, a group of truss hanger column, a group of truss stand and truss, temporary support frame includes roadbed box, a plurality of groups of support standard section, a group of lower conversion section and a group of upper conversion section, the roadbed box is located -0.1m basement roof, support standard section is stacked and is equipped with node for connecting between two, the lowermost support standard section is connected with lower conversion section through node, lower conversion section is welded with roadbed box and fixes, the uppermost support standard section is connected with upper conversion section through node, hang steel beam, the hang steel beam is located between a group of temporary support frame top, be equipped with the positioning jig for positioning support between hang steel beam and temporary support frame top, and temporary support frame top is welded with the lower flange of hang steel beam and fixes through positioning jig, the large -span steel beam is located on hang steel beam, and both ends are connected with both sides tower respectively, the hanger post is located on the large -span steel beam, and is located in the both sides of near temporary support frame, the truss stand is located on the truss hanger column, and both sides are connected with both sides tower respectively, the truss is located between truss stand, the large -span steel beam and truss all are connected with both sides tower through the embedded section, after installing temporary support frame, hoist the above structure in turn through 130 -ton truck crane, and the positioning jig is used for positioning installation, solve -0.1m basement roof insufficient load -bearing problem, improve construction efficiency.

[0007] Further, the support standard section includes four columns and inclined bracing web members; the columns are arranged in a square layout; the inclined bracing web members are arranged between the columns to enhance the connection stability with the columns through nodes. The inclined bracing web members can significantly improve the lateral stiffness of the structure without reducing the ductility and ultimate deformation capacity of the structure; at the same time, the inclined bracing web members transmit the gravity load from the upper layer to the lower layer through compression and tension of the floor, so that the force transmission path is more explicit.

[0008] Further, the inclined bracing web members form a square lattice between the columns; the center distance of the columns is 1500mm; the columns are made of Ф180*8 steel pipes; and the inclined bracing web members are made of Ф102*6 steel pipes. The square lattice of the inclined bracing web members between the columns can reasonably distribute the stress, so that the structure is more stable and effective when bearing load; at the same time, the design of the square lattice can reduce the use of materials while ensuring the strength of the structure, thereby reducing the weight of the structure and the load of the basement roof.

[0009] Further, the node comprises a plurality of stiffening plates and a plurality of bolts; the stiffening plates are arranged perpendicularly to the end surfaces of the two end components of the node and are fixed to the two end components of the node on one side; the bolts are arranged through the end surfaces of the two end components of the node. The stiffening plates can increase the local rigidity and strength of the node, so that the node is more stable when bearing loads and deformation is reduced; the bolt connection can conveniently apply and control the pre-tightening force, thereby ensuring the reliability of the connection.

[0010] Further, the truss and the large-span steel beam are provided with a supporting steel pipe. The supporting steel pipe is used for positioning and supporting, so as to ensure the stability of subsequent segmented installation of the truss.

[0011] Further, the truss comprises a first truss and a second truss; the first truss and the second truss are connected at the end surfaces and are connected with the two side tower buildings respectively; and the supporting steel pipe is arranged below the first truss. The truss is made in segments, and is installed by the automobile crane in segments; the first truss is installed through the supporting steel pipe first, and then the second truss is installed according to the installed first truss, so that the lifting weight is reduced, and the problem that large lifting equipment cannot be used due to insufficient bearing capacity of the basement roof is solved.

[0012] Further, a plurality of box-shaped inclined beams are welded between the two ends of the large-span steel beam and the truss column; and the inclined angle of the box-shaped inclined beam is 45°. The box-shaped inclined beam provides a more stable triangular structure for the connection between the large-span steel beam and the truss column, thereby ensuring the stability of installation.

[0013] The above technical scheme can have the following beneficial effects:

[0014] 1. The truss and large-span steel beam mixed installation structure can reasonably distribute the stress, so that the structure is more stable and effective when bearing loads; at the same time, the design of the square lattice structure can reduce the use of materials while ensuring the structural strength, thereby reducing the weight of the structure and the load of the basement roof.

[0015] 2. The truss and large-span steel beam mixed installation structure can solve the problem that large lifting equipment cannot be set up due to insufficient bearing capacity of the installation site, and improve the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic view of the truss and large-span steel beam mixed installation structure according to the present application;

[0017] Figure 2 FIG. 2 is a structural schematic view of the first truss and the supporting steel pipe in the truss and large-span steel beam mixed installation structure according to the present application;

[0018] Figure 3 A structure schematic view of a lower end of a temporary support frame in a truss and large-span steel beam mixed installation structure according to the utility model;

[0019] Figure 4 A structure schematic view of an upper end of a temporary support frame in a truss and large-span steel beam mixed installation structure according to the utility model;

[0020] Figure 5 A connection schematic view of a support standard section in a truss and large-span steel beam mixed installation structure according to the utility model;

[0021] Figure 6 A structure schematic view of a middle node in a truss and large-span steel beam mixed installation structure according to the utility model; Figure 5

[0022] Figure 7 A structure schematic view of a support standard section in a truss and large-span steel beam mixed installation structure according to the utility model;

[0023] Figure 8 A plan view of a temporary support frame in a truss and large-span steel beam mixed installation structure according to the utility model;

[0024] Figure 9 An inclined view of a support standard section in a truss and large-span steel beam mixed installation structure according to the utility model;

[0025] In the figure:

[0026] 1 - temporary support frame; 11 - roadbed box; 12 - support standard section; 13 - lower conversion section; 14 - upper conversion section; 15 - node; 16 - positioning jig frame; 17 - support steel pipe;

[0027] 121 - stand column; 122 - inclined support web; 151 - stiffened plate; 152 - bolt;

[0028] 2 - hung steel beam;

[0029] 3 - large-span steel beam; 31 - box type inclined beam;

[0030] 4 - truss suspension column;

[0031] 5 - truss stand column;

[0032] 6 - truss; 61 - first truss; 62 - second truss;

[0033] 7 - embedded section. DETAILED DESCRIPTION

[0034] ​The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. Embodiments

[0035] In this embodiment, as Figure 1 , Figure 3 , Figure 4 and Figure 5 , the present application discloses a truss and large-span steel beam mixed installation structure, comprising a group of temporary support frames 1, a hanging steel beam 2, a large-span steel beam 3, a group of truss hangers 4, a group of truss columns 5 and a truss 6; the temporary support frame 1 comprises a roadbed box 11, a plurality of groups of support standard sections 12, a group of lower conversion sections 13 and a group of upper conversion sections 14; the roadbed box 11 is arranged on the basement roof underground-0.1m; the support standard sections 12 are arranged in stacks, and nodes 15 are arranged between each two for connection; the lowermost support standard section 12 is connected with the lower conversion section 13 through the node 15; the lower conversion section 13 is welded and fixed with the roadbed box 11; the uppermost support standard section 12 is connected with the upper conversion section 14 through the node 15; the hanging steel beam 2 is arranged between the top ends of the group of temporary support frames 1; a positioning jig frame 16 is arranged between the hanging steel beam 2 and the top end of the temporary support frame 1 for positioning support, and the top of the temporary support frame 1 is welded and fixed with the lower flange of the hanging steel beam 2 through the positioning jig frame 16; the large-span steel beam 3 is arranged on the hanging steel beam 2, and the two ends are respectively connected with the two side towers; the hanger 4 stands on the large-span steel beam 3, and is located on the two sides close to the temporary support frame 1; the truss column 5 stands on the truss hanger 4, and the two sides are respectively connected with the two side towers; the truss 6 is arranged between the truss columns 5, and a support steel pipe 17 is arranged between the truss 6 and the large-span steel beam 3; the large-span steel beam 3 and the truss 6 are connected with the two side towers through the embedded sections 7.

[0036] Specifically, in order to ensure the stability of the temporary support frame 1 itself, especially the stability of the higher temporary support frame 1, a cable wind rope needs to be arranged to pull the horizontal supports together to form a whole; when the cable wind rope needs to be changed in position, the anchor point at the predetermined position must be prepared first, and a temporary cable wind rope is added to ensure stability, and then the position of the original cable wind rope is moved; after being firmly bolted with the anchor point, the temporary cable wind rope is removed.

[0037] In particular, the cable wind rope is arranged to pull the supports and the main structure as a secondary option.

[0038] Specifically, the maximum plate thickness of the truss 6 and the large-span steel beam 3 is 60 mm, the main material is Q355B and Q460GJC, the maximum cross-sectional size of the box type is 1200*700*30*60 (unit: millimeter), and the span of the truss 6 is 32 m.

[0039] Specifically, the hanging steel beam 2 adopts H800x300x18x30 size steel, and the installation height is 22.35 m; the large-span steel beam 3 adopts Q460GJC steel size, the cross-sectional size of the box type is 1200x600x30x50 (unit: millimeter), and the installation height is 26.85 m.

[0040] Specifically, the large-span steel beam 3 and the truss column 5 are connected to the two side towers through a plurality of square tubes with a size of 700x30 (unit: millimeter).

[0041] In the embodiment, as shown in Figure 7 , Figure 8 and Figure 9 , the support standard section 12 includes four columns 121 and diagonal bracing webs 122; the columns 121 are arranged in a square layout; the diagonal bracing webs 122 are arranged between the columns 121 and are connected to the columns 121 through nodes 15 to enhance the stability of the connection.

[0042] Specifically, the diagonal bracing web 122 is arranged on the side wall of the column 121 and is welded to the side wall of the column 121; one end of the diagonal bracing web 122 close to the side wall of the column 121 is provided with a node 15 to enhance the stability of the connection between the diagonal bracing web 122 and the column 121.

[0043] In the embodiment, as shown in Figure 7 , Figure 8 and Figure 9 , the diagonal bracing web 122 forms a square lattice between the columns 121; the center distance of the columns 121 is 1500 mm; the column 121 adopts a Ф180*8 steel pipe; and the diagonal bracing web 122 adopts a Ф102*6 steel pipe.

[0044] Specifically, the column 121 needs to be adjusted for verticality during installation to ensure that the error is not greater than 1% and not greater than 15 mm.

[0045] In the embodiment, as shown in Figure 6 , the node 15 includes a plurality of stiffening plates 151 and a plurality of bolts 152; the stiffening plate 151 is arranged perpendicular to the end face of the two end parts of the node 15 and is fixed to one side of the two end parts of the node 15; and the bolt 152 is arranged through the end face of the two end parts of the node 15.

[0046] Specifically, the stiffening plate 151 is arranged between the end face of the two end parts of the node 15 and the stand pipe and is connected by welding.

[0047] In the embodiment, as shown in Figure 1 and Figure 2 , the truss 6 is provided with a support steel pipe 17 between the large-span steel beam 3.

[0048] Specifically, the support steel pipe 17 is used for auxiliary support and positioning during installation of the truss 6, and the support steel pipe 17 is removed after installation of the truss 6 is completed.

[0049] In the embodiment, as shown in Figure 1 and Figure 2 , the truss 6 comprises a first truss 61 and a second truss 62; the first truss 61 and the second truss 62 are connected at end faces and are connected with two tower buildings respectively; and the support steel pipe 17 is arranged below the first truss 61.

[0050] Specifically, the first truss 61 and the second truss 62 are made of Q460GJC steel, and the installation height interval is 31.34m~35.85m.

[0051] Specifically, as shown in Figure 1 , the first truss 61 and the second truss 62 are both composed of a plurality of square pipes with a size of 700x30 (unit: millimeter), and the square pipes with a size of 700x30 form a triangular structure, thereby enhancing the stability of the first truss 61 and the second truss 62.

[0052] In the embodiment, as shown in Figure 1 , a plurality of box-type inclined beams 31 are welded between the large-span steel beam 3 and the truss suspension column 4 at two ends; and the box-type inclined beams 31 are inclined at an angle of 45°

[0053] Specifically, the box-type inclined beams 31 are square pipes with a size of 400x20 (unit: millimeter), and are inclined between the large-span steel beam 3 and the truss suspension column 4 at two ends.

[0054] The working principle of the above embodiment is as follows:

[0055] The utility model discloses a truss and large-span steel beam mixed installation structure, hoist selects 130 tons truck crane to carry out, installs a group of temporary support frame 1 between the tower building, hoists and hangs steel beam 2 between the upper end of temporary support frame 1, hoists large-span steel beam 3 on hanging steel beam 2, hoists truss suspension column 4 on large-span steel beam 3, hoists truss stand 5 on truss suspension column 4, hoists and sets up support steel pipe 17 on large-span steel beam 3, hoists first truss 61 between the upper end of support steel pipe 17 and one side tower building, hoists second truss 62 between one end of first truss 61 and the other side tower building, installs to complete, removes temporary support frame 1 and support steel pipe 17.

[0056] The above merely is the preferred embodiment of the present application, it should be pointed out that, for ordinary skilled person in the art, without departing from the principles of the present application, can make a number of improvements, these improvements also should be considered as the protection scope of the present application.

Claims

1. A hybrid installation structure of a truss and a long-span steel beam, characterized by: The utility model relates to a kind of temporary support frame (1) and steel beam structure, including: A set of temporary support frame (1), the temporary support frame (1) includes subgrade box (11), several groups of support standard section (12), a set of lower conversion section (13) and a set of upper conversion section (14); The subgrade box (11) is located on the basement roof of-0.1m;The support standard section (12) is stacked and arranged, and node (15) is arranged between two for connection;The lowermost support standard section (12) is connected with lower conversion section (13) through node (15);The lower conversion section (13) is welded with the subgrade box (11);The uppermost support standard section (12) is connected with upper conversion section (14) through node (15) above; Hanging steel beam (2), the hanging steel beam (2) is arranged between a set of temporary support frame (1) top;The hanging steel beam (2) is provided with positioning jig (16) for positioning support between temporary support frame (1) top;And temporary support frame (1) top is welded with the lower flange of hanging steel beam (2) through positioning jig (16) and is fixed; Large-span steel beam (3), the large-span steel beam (3) is arranged on hanging steel beam (2), and two ends are connected with two tower buildings respectively; A set of truss hanging column (4), the hanging column (4) is erected on large-span steel beam (3), and is located in the two sides of near temporary support frame (1); A set of truss column (5), the truss column (5) is erected on truss hanging column (4), and two sides are connected with two tower buildings respectively; Truss (6), the truss (6) is arranged between truss column (5), and support steel pipe (17) is arranged between the large-span steel beam (3); The large-span steel beam (3) and truss (6) are connected with two tower buildings through embedded section (7).

2. The hybrid truss and long-span steel beam installation structure according to claim 1, characterized by: The support standard section (12) includes four columns (121) and inclined bracing web member (122); The column (121) is arranged in square layout;The inclined bracing web member (122) is arranged between the column (121), and the connection stability with the column (121) is enhanced by node (15).

3. The hybrid truss-girder installation structure according to claim 2, characterized by: The inclined bracing web member (122) forms square lattice between the column (121);The center distance of the column (121) is 1500mm;The column (121) adopts Φ180*8 steel pipe;The inclined bracing web member (122) adopts Φ102*6 steel pipe.

4. The hybrid truss-girder installation structure according to claim 2, characterized by: The node (15) includes several stiffened plates (151) and several bolts (152); The stiffened plate (151) is arranged perpendicular to the end surface of the two end components of node (15), and is fixed on the two end components of node (15) on one side;The bolt (152) is arranged through the end surface of the two end components of node (15).

5. The hybrid truss and long-span steel beam installation structure according to claim 1, characterized by: Support steel pipe (17) is arranged between the truss (6) and the large-span steel beam (3).

6. The hybrid truss and long-span steel beam installation structure according to claim 2, characterized by: The truss (6) includes first truss (61) and second truss (62); The end surface of the first truss (61) and the second truss (62) is connected, and is connected with two tower buildings respectively;The support steel pipe (17) is arranged below the first truss (61).

7. The hybrid truss and long-span steel beam installation structure according to claim 1, characterized by: The large-span steel beam (3) and the truss hanging column (4) are welded with several box-type inclined beams (31) between both ends. The box-type inclined beam (31) has an inclination angle of 45°.

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