CN220247723U - Detachable lattice column supporting jig frame with overhanging steel structure - Google Patents

Abstract

The utility model discloses a cantilevered steel structure detachable lattice column support frame, which includes upright columns. Four columns are provided and distributed at the four corners of a rectangle. The columns are provided with several layers of horizontal web bars and inclined The diagonal tie rods of each floor include four and are distributed on the four sides of the rectangle. Two adjacent columns connect the two ends of the web rods. The diagonal tie rods of each floor include four and are arranged between the web rods of the upper and lower floors. , a diagonal tie rod is connected between the connection between the upper web rod and the column and the connection between the lower web rod and the column, a reinforcing rod is connected between the opposite web rods on the top floor, and a roof plate is connected at the top of the column and reinforcing rod. There are vertical support columns, and support brackets are provided on the support columns. Beneficial effects of the utility model: a triangular stable load-bearing member composed of upright columns, web rods and diagonal rods has the characteristics of high load-bearing capacity, resistance to deformation, safety and reliability, and provides support for cantilevered steel structures.

Description

A cantilevered steel structure detachable lattice column supporting tire frame

Technical field

The utility model belongs to the field of key technologies related to the construction of large-span cantilevered steel structures, and specifically relates to a detachable lattice column supporting frame of the cantilevered steel structure.

Background technique

With the high-quality development of the times, people have an increasing demand for construction products such as lightweight and high-strength new materials, building solid quality, and architectural aesthetics. The prefabricated steel structure has high strength, good seismic performance, large indoor space, and its economic and technical With its advantages, low-carbon emission reduction, green environmental protection, circular economy, and the ability to be industrialized and developed, large-span cantilevered steel structures have become the mainstream development direction of the public construction industry. Since the structural system and stress conditions of this structure are different from The traditional structural system is different and construction cannot be carried out according to traditional construction techniques.

At present, the detachable lattice column support frame of large-span cantilevered steel structures is rarely used abroad, and most of them are supported by full-floor brackets. However, in China, the detachable lattice column support is widely used, and the cantilever part of the steel structure After the temporary support frame is erected, the cantilevered frame is installed in a certain order until all the main components are hoisted. Then, a combination of integral component assembly, hoisting and component hoisting is used to add temporary support frames to the components that cannot be assembled into a whole. , which can achieve safe, reliable and rapid construction purposes.

Utility model content

The purpose of this utility model is to provide a detachable lattice column supporting frame for a cantilevered steel structure, which is integrated and refined on the basis of summarizing the construction of multiple large-scale cantilevered steel structures. It is based on the traditional The technology has been improved and combined with new technologies to solve the shortcomings of low efficiency and high cost of traditional engineering construction. The steel structure temporary support frame made of H-shaped steel is used to pre-arch and temporarily fix the cantilevered end of the cantilevered structure to avoid the risk of downward deflection of the large-span cantilevered steel structure, and has achieved remarkable results in actual construction applications.

The purpose of this utility model is achieved through the following technical solutions:

A cantilevered steel structure with a detachable lattice column supporting the tire frame, including an upright column. Four columns are provided and distributed at the four corners of a rectangle. The columns are provided with several layers of horizontal web rods and inclined diagonal tie rods. The web bars of each floor include four and are distributed on the four sides of the rectangle. Two adjacent columns connect the two ends of the web bars respectively. The diagonal tie bars of each floor include four and are arranged between the web bars of the upper and lower floors. The web bars of the upper floor are connected to the web bars of the upper and lower floors. A diagonal tie rod is connected between the connection point of the upright column and the connection point between the lower web rod and the upright column. A reinforcing rod is connected between the opposite web rods on the top floor. A top plate is connected to the top of the upright column and the reinforcing rod. There are vertical support columns on the top plate. , a support bracket is provided on the support column.

Further, the columns are fixed on the ground through embedded parts.

Further, the embedded parts include embedded panels. The bottom of the embedded panels is connected with side bars and inner bars embedded in the ground. The side bars are L-shaped structures and are located on both sides of the embedded panels. The inner bars are Strip structure and located inside the embedded panel.

Further, a stiffening plate is connected between the embedded plate and the column.

Further, the upright column is a double-jointed rectangular tube structure, the web rod is a rectangular tube structure, the inclined tie rod is a rectangular tube structure with a tic-shaped cross-section, the reinforcing rod is a double-jointed rectangular tube structure, and the support column is a rectangular tube structure.

Further, the reinforcing rods are arranged in a cross shape.

Further, the lower end of the diagonal tie rod of the upper layer and the upper end of the diagonal tie rod of the lower layer, which are oppositely positioned up and down, are connected at the same end of the web rod.

Further, the right end of the diagonal tie rod on the left side and the left end of the diagonal tie rod on the right side are connected to the web rod on the same layer.

Further, the support bracket includes a bracket plate, the bracket plate is connected to the top of the support column, the lower bracket column is connected between the top plate and the bracket plate, and the upper bracket column is erected on the bracket plate.

Furthermore, a cable wind rope is connected between the upper part of the column and the ground.

The support principle of this utility model: determine the 10 segmented parts of the cantilever truss through calculation and simulation analysis, and set up temporary support frames at the segmented parts. The trusses are assembled and staked out on site according to the construction sequence, and auxiliary materials such as H-shaped steel and angle steel are used. Make a tire frame that is assembled as a whole, and use the assembly method to assemble it to control the overall deflection of the truss and the assembly accuracy. Make a temporary support frame at the cantilevered end of the cantilevered steel structure to temporarily fix the free end of the cantilevered steel structure, butt weld it at high altitude and connect its attached rods.

Beneficial effects of this utility model:

1. The detachable lattice column support frame is composed of upright columns, web bars, and diagonal bars to form a triangular stable load-bearing member. It has the characteristics of high bearing capacity, not easy to deform, safe and reliable, and provides support for the cantilevered steel structure. It breaks through the traditional way of erecting steel structures with brackets all over the hall. The detachable lattice column support tire frame takes up less space, makes the working surface easier for workers to operate, and the bracket arrangement is more flexible and more practical.

2. The detachable lattice column support tire frame adopts assembled modular technology. All components are processed in the factory or purchased standardized components, which realizes standardization of installation, reduces the skill requirements for installation workers, facilitates assembly, reduces construction intensity, improves construction efficiency, and has the characteristics of simple process and low cost.

3. The detachable lattice column supports the tire frame with high construction accuracy. Each steel column interface is equipped with a welding and correction lining plate to improve the welding quality and facilitate precision control after component installation. The process quality control effect is high. Multiple total stations are installed and adjusted by observing three-dimensional coordinate points, effectively improving construction accuracy.

4. The detachable lattice column support tire frame adopts a highly flexible operating platform that matches the lattice shape and is used for installation operations and welding construction. It is easy and flexible to operate, has good safety, high reliability, and is widely used. , strong versatility.

The aforementioned main scheme of the present utility model and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and claimed for protection by the present utility model; and in the present utility model, (each non-conflicting choice) between choices and Other options can also be combined freely. After understanding this solution, those skilled in the art will understand that there are many combinations based on existing technology and common knowledge, all of which are technical solutions to be protected by the present utility model, and will not be exhaustive here.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

Figure 2 is a front view of the structure of the embedded part of the present utility model.

Figure 3 is a bottom view of the structure of the embedded part of the present utility model.

Figure 4 is a top view of the structure of the embedded part of the present invention.

Figure 5 is a cross-sectional view of A-A in Figure 1 of the present invention.

Figure 6 is a cross-sectional view of B-B in Figure 1 of the present invention.

Figure 7 is a schematic structural diagram of the support bracket of the present invention.

Figure 8 is a schematic diagram of the arrangement of the wind rope of the utility model.

In the picture: 1-embedded parts, 2-column, 3-web rod, 4-diagonal tie rod, 5-reinforcement rod, 6-top plate, 7-support column, 8-support bracket, 9-cable wind rope, 10 -Truss; 11-embedded plate, 12-side reinforcement, 13-inner reinforcement, 14-stiffening plate; 81-lower bracket column, 82-bracket plate, 83-upper bracket column.

Detailed ways

The utility model will be further described below in conjunction with specific embodiments and drawings.

Referring to Figures 1 to 8, a cantilevered steel structure detachable lattice column support frame includes embedded parts 1, columns 2, web rods 3, diagonal rods 4, reinforcing rods 5, top plates 6, supports Column 7, support bracket 8 and cable wind rope 9.

Column 2 is a double rectangular tube (150×100×8mm) structure. Column 2 is arranged vertically with a spacing of 1.5m. Four columns are provided and distributed at the four corners of the rectangle to provide installation contact for web rod 3 and diagonal tie rod 4. The columns 2 are fixed on the ground using embedded parts 1, and cable wind ropes 9 are connected between the upper part of each column 2 (2/3L height) and the ground to ensure that the columns 2 have excellent stability.

The embedded part 1 includes an embedded plate 11 , side ribs 12 , inner ribs 13 and stiffening plates 14 . The bottom of the embedded plate 11 is welded and connected with side ribs 12 and inner ribs 13 buried in the ground. The side ribs 12 are outward-facing L-shaped structures and are located on both sides of the embedded plate 11. The inner ribs 13 are strip-shaped structures. Located inside the embedded board 11, it ensures that the embedded board 11 has excellent grip on the ground.

The column 2 is welded to the upper end surface of the embedded plate 11, and a stiffening plate 14 is welded and connected between the embedded plate 11 and the column 2 to enhance the connection strength between the two.

The column 2 is provided with several layers of horizontal web rods 3 and inclined diagonal tie rods 4, forming a lattice column structure. The adjacent columns 2 are connected by using the web rods 3, thereby connecting the four columns 2 as a whole. The diagonal tie rods 4 are used to strengthen the connection between the column 2 and the web rod 3, and the diagonal tie rods 4 are arranged obliquely at the frame openings on all four sides to form a triangular support structure, thus improving the overall stability and load-bearing capacity.

The web rod 3 is a rectangular tube (150×100×8mm) structure with a standard section height of 1.5m. The web rods 3 on each floor include four and are distributed on the four sides of the rectangle. The four web rods 3 on each floor form a rectangular frame. Structure (section size 1.5×1.5m). Two adjacent columns 2 are connected to both ends of the web rod 3 respectively, and several layers of web rods 3 are connected between the two adjacent columns 2, ensuring a reliable connection between the two adjacent columns 2.

The cable-stayed rods 4 are rectangular tubes (150×100×8mm) with a tic-shaped cross-section. The cable-stayed rods 4 on each floor include four and are arranged between the web rods 3 of the upper and lower floors. The connection between the web rods 3 of the upper layer and the column 2 A diagonal tie rod 4 is connected to the connection between the lower web rod 3 and the column 2. Since a rectangular frame opening is formed on the side between the upright column 2 and the web rod 3, the diagonal tie rod 4 is arranged obliquely at the position of the frame opening to form Triangular support structure has excellent stability.

The lower end of the diagonal tie rod 4 of the upper layer with opposite positions and the upper end of the diagonal tie rod 4 of the lower layer are connected at the same end of the web bar 3, ensuring the transmission of force between the upper and lower layers. The right end of the diagonal tie rod 4 on the left and the left end of the diagonal tie rod 4 on the right are connected to the web rod 3 on the same layer, ensuring the transmission of force between the left and right.

There are reinforcing rods 5 connected between the opposite web rods 3 on the top floor. The reinforcing rods 5 are double-jointed structures of rectangular tubes (150×100×8mm), and the reinforcing rods 5 are arranged in a cross shape. The uprights 2 and the reinforcing rods 5 are used to form an upward effect. The supporting part is used to support and install the top plate 6.

The top of the column 2 and the reinforcing rod 5 are connected with a top plate 6. The top plate 6 is a 20mm thick flat plate structure. The top plate 6 is provided with an upright support column 7. The support column 7 is a rectangular tube (300×300×12mm) structure, and the support column The erect position of 7 is relative to the center of the cross of the reinforcing rod 5, ensuring reliable support for the support column 7.

A support bracket 8 is provided on the support column 7, and the support bracket 8 is used to directly support the truss 10. When installing the support frame, it is necessary to consider installing an adjustable bracket on the top so that it can be adjusted for precise positioning and measurement after the truss is installed.

The support bracket 8 includes a lower bracket column 81, a bracket plate 82 and an upper bracket column 83. The bracket plate 82 is a flat plate structure. The bracket plate 82 is connected to the top of the support column 7. The lower bracket column 81 is an H-shaped steel. , the lower bracket column 81 is connected between the top plate 6 and the bracket plate 82, and the upper bracket column 83 is erected on the bracket plate 82. The upper bracket column 83 is a seamless steel pipe to achieve direct support to the truss 10.

The working process of this utility model:

When installing the embedded parts of the support frame, consider the position of the concrete columns of each layer and the position of the stress point of the truss, and transfer the concentrated load of each point to the concrete columns accordingly. Before assembling the lattice column support tire frame, use a total station to check the position of all embedded parts (X-axis, Y-axis, Z-axis). If there is any deviation or elevation error, it should be adjusted in place. The farthest support frame Consider the pre-capping value and distribute it to other corresponding supports in proportion.

Review the actual height of each point of the support frame. The actual height of the support frame = calculated theoretical height + calculated camber value (variable, changes due to distance). In order to ensure the safe construction of the truss, hoist the support frame to the desired position, and fix it with cable wind ropes around each support frame (as shown below). The contact points between the support frame and the lower chord of the truss are firmly spot welded; when unloading after installation, spot weld them Seams are cut out and polished clean.

The total station detects the top elevation of the lattice column support tire frame. Only after it is correct can the next hoisting process be carried out. The lower chords, supports, diagonal web bars, and web bars of each floor are installed, and the installation of the floor beams on that floor is completed at the same time.

The above-mentioned basic examples of the present invention and its further optional examples can be freely combined to form multiple embodiments, and they are all applicable and claimed embodiments of the present invention. In the scheme of the present utility model, each optional example can be arbitrarily combined with any other basic example and optional example.

The above descriptions are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the present utility model. Within the protection scope of utility model.

Claims (10)

1. The utility model provides a steel construction detachable lattice column supports bed-jig encorbelments, includes stand (2) of erectting, its characterized in that: the stand (2) be equipped with four and distribute in the four corners of rectangle, be equipped with on stand (2) a plurality of layers horizontally web member (3) and oblique diagonal member (4), web member (3) of every layer include four and distribute the four sides at the rectangle, the both ends of web member (3) are connected respectively to two adjacent stands (2), diagonal member (4) of every layer include four and arrange between web member (3) of upper and lower floor, be connected with diagonal member (4) between the junction of upper web member (3) and stand (2) and the junction of lower floor web member (3) and stand (2), be connected with reinforcing member (5) between web member (3) that the top is relative at the top, the top of stand (2) and reinforcing member (5) is connected with roof (6), be equipped with upright support column (7) on roof (6), be equipped with support bracket (8) on support column (7).

2. The overhanging steel structure detachable lattice column support jig of claim 1, wherein: the upright post (2) is fixed on the ground through the embedded part (1).

3. The overhanging steel structure detachable lattice column support jig of claim 2, wherein: the embedded part (1) comprises an embedded plate (11), the bottom of the embedded plate (11) is connected with a side rib (12) and an inner rib (13) which are buried in the ground, the side rib (12) is of an L-shaped structure and is located on two sides of the embedded plate (11), and the inner rib (13) is of a strip-shaped structure and is located in the embedded plate (11).

4. A overhanging steel structure detachable lattice column support jig according to claim 3, characterized in that: a stiffening plate (14) is connected between the embedded plate (11) and the upright post (2).

5. The overhanging steel structure detachable lattice column support jig of claim 1, wherein: the upright post (2) is of a rectangular tube double-splicing structure, the web member (3) is of a rectangular tube structure, the diagonal draw bar (4) is of a rectangular tube structure with a cross section in a groined shape, the reinforcing rod (5) is of a rectangular tube double-splicing structure, and the supporting column (7) is of a rectangular tube structure.

6. The overhanging steel structure detachable lattice column support jig of claim 5, wherein: the reinforcing rods (5) are arranged in a cross shape.

7. The overhanging steel structure detachable lattice column support jig of claim 1, wherein: the lower end of the diagonal member (4) of the upper layer and the upper end of the diagonal member (4) of the lower layer which are opposite in upper and lower positions are connected at the same end of the web member (3).

8. The overhanging steel structure detachable lattice column support jig of claim 1 or 7, characterized in that: the right end of the left diagonal member (4) opposite to the left and right positions is connected with the left end of the right diagonal member (4) at the web member (3) of the same layer.

9. The overhanging steel structure detachable lattice column support jig of claim 1, wherein: the support bracket (8) comprises a bracket plate (82), the bracket plate (82) is connected to the top of the support column (7), the lower bracket column (81) is connected between the top plate (6) and the bracket plate (82), and the bracket plate (82) is vertically provided with an upper bracket column (83).

10. The overhanging steel structure detachable lattice column support jig of claim 1, wherein: a cable rope (9) is connected between the upper part of the upright post (2) and the ground.