Portal rigid frame

Abstract

The utility model discloses a portal rigid frame which comprises a steel beam and a stand column, the steel beam is formed by splicing two pieces of C-shaped steel back to back, the upper end of the stand column is clamped and fixed between the backs of the two pieces of C-shaped steel forming the steel beam, and a plurality of vertical reinforcing ribs are clamped and fixed between the backs of the two pieces of C-shaped steel forming the steel beam at intervals. The upper ends of the vertical reinforcing ribs extend out of the top of the steel beam, the lower ends of the vertical reinforcing ribs extend out of the bottom of the steel beam, the left side portion and the right side portion of the upper extending section of each vertical reinforcing rib are fixedly connected with a roof purline through bolts, and the left side portion and the right side portion of the lower extending section of each vertical reinforcing rib are fixedly connected with a ceiling purline through bolts. According to the portal rigid frame, the assembly workload can be simplified, the steel consumption can be effectively reduced, the manufacturing cost can be obviously reduced, the light weight of the portal rigid frame can be achieved, particularly, the bearing strength can be improved, factory prefabrication production can be achieved, and transportation, disassembly, assembly and reutilization are facilitated.

Description

Technical Field

[0001] This utility model relates to a portal frame and belongs to the field of steel frame structure design technology. Background Technology

[0002] With the continuous development of my country's construction industry, steel structures have been widely used in various construction projects, such as factories and warehouses, due to their shorter construction period, higher degree of prefabrication, and ease of modular construction. Currently, portal frames are commonly used for the construction of small- to medium-span factories and warehouses. Existing portal frame structures typically... Figure 1 As shown, the structure includes a steel beam 1 and columns 2 fixed on both sides of the steel beam 1. The steel beam 1 is composed of two C-shaped steel beams joined back-to-back. Furthermore, the steel beam 1 is formed by left steel beam 1-1 and right steel beam 1-2 joined at an obtuse angle, symmetrically arranged. Multiple roof purlins 3 are fixed at intervals at the top of the steel beam 1, and multiple ceiling purlins 4 are fixed at intervals at the bottom of the steel beam 1. The connection between the columns 2 and the steel beam 1 is achieved by welding a connecting plate A5 to the upper side of the column 2, clamping the connecting plate A5 between the backs of the two C-shaped steel beams constituting the steel beam 1, and then fixing the connecting plate A5 to the backs of the two C-shaped steel beams constituting the steel beam 1 using bolts 6. Please refer to [link to relevant documentation]. Figure 2 As shown; Additionally, the splicing of the left steel beam 1-1 and the right steel beam 1-2 is achieved through a connecting plate B7 at an obtuse angle. The left and right parts of the connecting plate B7 are respectively sandwiched between the backs of the two C-shaped steel beams constituting the left steel beam 1-1 and the right steel beam 1-2. Then, bolts 6 are used to fix the left and right parts of the connecting plate B7 to the backs of the two C-shaped steel beams constituting the left steel beam 1-1 and the right steel beam 1-2. Please refer to [link / reference]. Figure 3 As shown; in addition, multiple roof purlins 3 and multiple ceiling purlins 4 are independently fixed to the steel beam 1 via angle iron fasteners 8, please refer to [link to relevant documentation]. Figure 3 and Figure 4 As shown; in addition, to ensure the load-bearing capacity of the steel beam 1, multiple reinforcing steel plates 9 are clamped and fixed between the backs of the two C-shaped steels constituting the steel beam 1. The reinforcing steel plates 9 are fixedly connected to the backs of the two C-shaped steels constituting the steel beam 1 by bolts 6. Please refer to... Figure 1 and Figure 5 As shown.

[0003] Clearly, constructing a portal frame using existing technology requires a large number of connecting plates A5, connecting plates B7, angle iron fasteners 8, and reinforcing steel plates 9. This not only results in problems such as excessive steel consumption, high cost, heavy weight, and complex assembly operations, but also unreliable connection strength, increased complexity of prefabrication, and reduced on-site assembly efficiency. In particular, multiple parts require welding for fixation, which not only increases welding costs but also makes disassembly inconvenient after the service life, leading to low reuse value. The utility model discloses

[0004] In view of the above problems existing in the prior art, the utility model discloses a door type rigid frame which can obviously reduce the amount of steel, is convenient to assemble on site, can realize full-plant prefabrication processing, has reliable connecting strength, can be recycled and reused.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A door type rigid frame, comprising a steel beam and a stand column fixed on the left and right sides of the steel beam, the steel beam is composed of two C-shaped steels back-to-back spliced, and the steel beam is composed of left and right symmetrical left and right steel beams which are connected at an obtuse angle, a plurality of roof purlins are fixed at the top of the steel beam at intervals, and a plurality of suspended ceiling purlins are fixed at the bottom of the steel beam at intervals, characterized in that: the upper end of the stand column is clamped and fixed between the backs of the two C-shaped steels constituting the steel beam, and a plurality of vertical reinforcing bars are clamped and fixed between the backs of the two C-shaped steels constituting the steel beam at intervals, the upper end of the vertical reinforcing bar extends out of the top of the steel beam, the lower end of the vertical reinforcing bar extends out of the bottom of the steel beam, and the left / right side of the upper extending section of each vertical reinforcing bar is fixedly connected with a roof purlin through a bolt, and the left / right side of the lower extending section of each vertical reinforcing bar is fixedly connected with a suspended ceiling purlin through a bolt.

[0007] In an embodiment, the roof purlin is in the shape of Z, the suspended ceiling purlin is in the shape of C, the left / right side of the upper extending section of the vertical reinforcing bar is fixedly connected with the vertical part of the Z-shaped roof purlin through a bolt, and the left / right side of the lower extending section of the vertical reinforcing bar is fixedly connected with the back of the C-shaped suspended ceiling purlin through a bolt.

[0008] In a preferred embodiment, the stand column is composed of a rectangular steel.

[0009] In a preferred embodiment, the vertical reinforcing bar is composed of a rectangular steel or a C-shaped steel.

[0010] In an embodiment, a ridge column is clamped at the splicing position of the left and right steel beams, and the front and rear sides of the ridge column are fixedly connected with the backs of the C-shaped steels constituting the left and right steel beams through bolts.

[0011] In a preferred embodiment, the ridge column is composed of a rectangular steel.

[0012] In an embodiment, the door type rigid frame further comprises a horizontal support beam, and the left and right ends of the horizontal support beam are clamped between the backs of the two C-shaped steels constituting the left or right steel beam and fixedly connected through bolts.

[0013] In a preferred embodiment, the top center position of the horizontal support beam abuts against the bottom of the ridge column.

[0014] In a preferred embodiment, the horizontal support beam is made of rectangular steel or C-shaped steel.

[0015] In an embodiment, the portal frame further comprises left and right haunch beams, each of which is made of two C-shaped steels back to back, one end of the left haunch beam is fixedly connected to the left stand column by bolts, the other end of the left haunch beam is fixedly connected to the left steel beam by bolts, one end of the right haunch beam is fixedly connected to the right stand column by bolts, and the other end of the right haunch beam is fixedly connected to the right steel beam by bolts.

[0016] In an embodiment, the back of one end of the two C-shaped steels making up the left / right haunch beam is fixedly connected to the front and rear sides of the left / right stand column sandwiched therebetween by bolts, and the other end of the two C-shaped steels making up the left / right haunch beam is fixedly connected between the backs of the two C-shaped steels making up the left / right steel beam by bolts.

[0017] In an embodiment, the other end of the two C-shaped steels making up the left / right haunch beam is a parallelogram plane with side wings cut off, a rectangular fixing block is fixedly sandwiched between the two parallelogram planes, and the back of the two C-shaped steels making up the left / right haunch beam is fixedly connected to the back of the rectangular fixing block and the back of the C-shaped steel making up the left / right steel beam adjacent thereto by bolts.

[0018] In an embodiment, the portal frame further comprises a plurality of reinforcing members, which are fixedly sandwiched between the backs of the two C-shaped steels making up the steel beam.

[0019] In a preferred embodiment, the reinforcing members are made of rectangular steel or C-shaped steel.

[0020] Compared with the prior art, the beneficial technical effects of the present application are as follows:

[0021] The present application has the advantages that: the construction of the portal frame can be simplified, the use of steel can be reduced, the production cost can be reduced, the load-bearing strength can be improved, the portal frame can be lightweight, the processing and assembly efficiency can be improved, and the value of reutilization can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of the prior art portal frame;

[0023] Figure 2 is a schematic view showing the connection structure between the stand column and the steel beam in the prior art portal frame;

[0024] Figure 3 is a schematic diagram showing the splicing structure between the left steel beam and the right steel beam in the existing portal frame;

[0025] Figure 4 is a schematic diagram showing the connecting structure between the roof purlin and the suspended ceiling purlin and the steel beam in the existing portal frame;

[0026] Figure 5 is a schematic diagram showing the connecting structure between the reinforcing steel plate and the steel beam in the existing portal frame;

[0027] Figure 6 is a structural schematic diagram of a portal frame provided by an embodiment;

[0028] Figure 7 is a schematic diagram showing the connecting structure between the column and the steel beam in the embodiment;

[0029] Figure 8 is a schematic diagram showing the assembly structure of the roof purlin and the suspended ceiling purlin in the embodiment;

[0030] Figure 9 is a front view structural schematic diagram of Figure 8 ;

[0031] Figure 10 is a schematic diagram showing the splicing structure between the left steel beam and the right steel beam in the embodiment;

[0032] Figure 11 is a schematic diagram showing the connecting structure between the right haunched beam and the right column and the right steel beam in the embodiment;

[0033] Figure 12 is a schematic diagram showing the connecting structure of both ends of the right haunched beam in the embodiment;

[0034] Figure 13 is a structural schematic diagram of the C-shaped steel constituting the left and right haunched beams in the embodiment;

[0035] The reference numerals in the drawings are as follows:

[0036] 1, steel beam; 1-1, left steel beam; 1-2, right steel beam; 2, column; 2-1, left column; 2-2, right column; 3, roof purlin; 3-1, vertical part; 4, suspended ceiling purlin; 4-1, back part; 5, connecting plate A; 6, bolt; 7, connecting plate B; 8, angle iron fixing member; 9, reinforcing steel plate; 10, vertical reinforcing rib; 10-1, upper protruding section; 10-2, lower protruding section; 11, ridge column; 12, horizontal support beam; 13, left haunched beam; 14, right haunched beam; 14-1, parallelogram plane; 15, rectangular fixing block; 16, reinforcing member. DETAILED DESCRIPTION

[0037] The technical scheme of the utility model will be described in further detail below with reference to the drawings and embodiments. In addition, it should be noted that the terms used in the utility model are merely for the purpose of describing specific embodiments and are not intended to limit the utility model. Unless otherwise defined, the technical terms or scientific terms used in the utility model should be understood as the general meaning understood by those skilled in the art. The terms "inner", "outer", "upper", "lower", "front", "rear", "left", "right" and the like indicate the orientation or position relationship shown in the drawings, and are merely for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0038] Embodiment

[0039] Please refer to Figure 6 It is shown that the door type rigid frame provided by the embodiment comprises a steel beam 1 and a stand column 2 fixed on the left and right sides of the steel beam 1, the steel beam 1 is composed of two C-shaped steels back-to-back spliced, and the steel beam 1 is composed of a left steel beam 1-1 and a right steel beam 1-2 symmetrically spliced at an obtuse angle, a plurality of roof purlins 3 are fixed at the top of the steel beam 1 at intervals, and a plurality of suspended ceiling purlins 4 are fixed at the bottom of the steel beam 1 at intervals. In the embodiment, the roof purlin 3 is in the shape of Z, and the suspended ceiling purlin 4 is in the shape of C.

[0040] Please refer to Figure 6 、 Figure 7 and Figure 11 It is shown that in the embodiment, the upper end of the stand column 2 is clamped and fixed between the backs of the two C-shaped steels constituting the steel beam 1, and the stand column 2 is composed of a square steel.

[0041] Please refer to Figures 6 to 11 It is shown that in the embodiment, a plurality of vertical reinforcing ribs 10 are clamped and fixed between the backs of the two C-shaped steels constituting the steel beam 1 at intervals, the upper end of the vertical reinforcing rib 10 protrudes from the top of the steel beam 1, the lower end of the vertical reinforcing rib 10 protrudes from the bottom of the steel beam 1, the left / right side of the upper protruding section 10-1 of the vertical reinforcing rib 10 is fixedly connected with the vertical part 3-1 of the Z-shaped roof purlin 3 through a bolt 6, and the left / right side of the lower protruding section 10-2 of the vertical reinforcing rib 10 is fixedly connected with the back 4-1 of the C-shaped suspended ceiling purlin 4 through a bolt 6. The utility model clamps and fixes a plurality of vertical reinforcing ribs 10 between the two C-shaped steels constituting the steel beam 1, which not only greatly enhances the bearing strength of the steel beam 1, but also can be used for fixing the roof purlin 3 and the suspended ceiling purlin 4 at the same time, and a large number of angle iron fixing members for fixing the roof purlin 3 and the suspended ceiling purlin 4 in the prior art can be saved.

[0042] As a preferred solution, the vertical reinforcing rib 10 is made of rectangular steel or C-shaped steel, which is convenient for prefabrication and assembly.

[0043] Please refer to Figure 6 and Figure 10 In the embodiment, the ridge column 11 is arranged between the left steel beam 1-1 and the right steel beam 1-2, and the front and rear sides of the ridge column 11 are fixedly connected to the back of the C-shaped steel of the left steel beam 1-1 and the right steel beam 1-2 by the bolts 6. This design not only saves the special-shaped connecting plate B used for connecting the left steel beam 1-1 and the right steel beam 1-2 in the prior art, but also simplifies the prefabrication cost and ensures the connection strength between the left steel beam 1-1 and the right steel beam 1-2.

[0044] As a preferred solution, the ridge column 11 is made of rectangular steel, which is convenient for prefabrication and assembly.

[0045] Please refer to Figure 6 and Figure 10 In the embodiment, the portal frame further comprises a horizontal support beam 12, and the left and right ends of the horizontal support beam 12 are arranged between the backs of the two C-shaped steels of the left steel beam 1-1 or the right steel beam 1-2 and are fixedly connected by the bolts 6. The horizontal support beam 12 can further ensure the bearing strength and levelness of the steel beam 1.

[0046] As a preferred solution, the top center of the horizontal support beam 12 abuts against the bottom of the ridge column 11, so as to further enhance the support of the steel beam 1 and improve the bearing capacity of the steel beam 1.

[0047] As a preferred solution, the horizontal support beam 12 is made of rectangular steel or C-shaped steel. It should be noted that if the horizontal support beam 12 is made of C-shaped steel, the back of the C-shaped steel of the horizontal support beam 12 is arranged upward and downward, and the two side wings of the C-shaped steel of the horizontal support beam 12 are fixedly connected to the back of the two C-shaped steels of the left steel beam 1-1 or the right steel beam 1-2 by the bolts 6.

[0048] Please refer to Figure 6 、 Figure 7 、 Figures 11 to 13As shown in the drawings, in the embodiment, the portal frame further comprises a left haunch beam 13 and a right haunch beam 14, both of which are composed of two C-shaped steels back to back, one end of the left haunch beam 13 is fixedly connected with the left stand column 2-1 through the bolt 6, the other end of the left haunch beam 13 is fixedly connected with the left steel beam 1-1 through the bolt 6, one end of the right haunch beam 14 is fixedly connected with the right stand column 2-2 through the bolt 6, the other end of the right haunch beam 14 is fixedly connected with the right steel beam 1-2 through the bolt 6. By additionally arranging the left haunch beam 13 and the right haunch beam 14, the load-bearing strength and stability of the portal frame can be further improved.

[0049] In addition, in the embodiment, the back of one end of the two C-shaped steels constituting the left haunch beam 13 is fixedly connected with the front and rear sides of the left stand column 2-1 clamped therebetween through the bolt 6, the other end of the two C-shaped steels constituting the left haunch beam 13 is fixedly connected between the backs of the two C-shaped steels constituting the left steel beam 1-1 through the bolt 6 (see Figure 7 the drawings); the back of one end of the two C-shaped steels constituting the right haunch beam 14 is fixedly connected with the front and rear sides of the right stand column 2-2 clamped therebetween through the bolt 6, the other end of the two C-shaped steels constituting the right haunch beam 14 is fixedly connected between the backs of the two C-shaped steels constituting the right steel beam 1-2 through the bolt 6 (see Figure 11 the drawings).

[0050] Since the connection structure between the left haunch beam 13 and the left steel beam 1-1 is the same as that between the right haunch beam 14 and the right steel beam 1-2, the embodiment will be specifically described by taking the connection structure between the right haunch beam 14 and the right steel beam 1-2 as an example:

[0051] Please refer to Figures 11 to 13 the drawings, in the embodiment, the connection between the right haunch beam 14 and the right steel beam 1-2 is achieved by making the other end of the two C-shaped steels constituting the right haunch beam 14 into a parallelogram plane 14-1 with the side wings cut off, clamping a rectangular fixed block 15 between the two parallelogram planes 14-1, and fixedly connecting the backs of the two C-shaped steels constituting the right haunch beam 14 with the rectangular fixed block 15 and the backs of the C-shaped steels constituting the right steel beam 1-2 adjacent thereto through the bolt 6.

[0052] In addition, please refer to Figure 6 , Figure 7 and Figure 11 the drawings, in the embodiment, the portal frame further comprises a plurality of reinforcing members 16, which are clamped and fixed between the backs of the two C-shaped steels constituting the steel beam 1 at intervals, and the load-bearing strength of the portal frame can be further improved by additionally arranging the reinforcing members 16. As a preferred solution, the reinforcing members 16 are composed of rectangular steels or C-shaped steels, which can facilitate prefabrication and assembly operation.

[0053] From the above, it can be seen that the door type rigid frame can be constructed without a large number of connecting plates and angle iron fixing members through the ingenious structure design, the assembly workload can be greatly simplified, full bolt connection can be realized, the steel consumption can be effectively reduced, the manufacturing cost can be obviously reduced, the lightweight of the door type rigid frame can be realized, the bearing strength can be improved, the factory prefabrication production can be realized, transportation and disassembly and reuse are facilitated, the processing and assembly efficiency of the door type rigid frame and the disassembly and reuse value can be obviously improved, and therefore, the utility model has strong practicability and significant economic value compared with the prior art.

[0054] Finally, it is necessary to point out that: the above only for the preferred specific embodiments of the present application, but the scope of protection of the present application is not limited to this, any skilled in the art of the technical personnel in the present application disclosed in the technical range, easily thought of changes or replacement, should be covered within the scope of protection of the present application.

Claims

1. A portal frame comprising a steel beam and columns fixed on both sides of the steel beam, the steel beam is composed of two C-shaped steels back-to-back spliced, and the steel beam is composed of left and right symmetrical left and right steel beams spliced at an obtuse angle, a plurality of roof purlins are fixed at intervals on the top of the steel beam, and a plurality of suspended ceiling purlins are fixed at intervals on the bottom of the steel beam; characterized in that: The upper end of the column is clamped and fixed between the back of two C-shaped steels constituting the steel beam, and a plurality of vertical reinforcing bars are clamped and fixed between the back of the two C-shaped steels constituting the steel beam, the upper end of the vertical reinforcing bar extends out of the top of the steel beam, the lower end of the vertical reinforcing bar extends out of the bottom of the steel beam, the left / right side of the upper extending section of each vertical reinforcing bar is fixedly connected with a roof purlin through a bolt, and the left / right side of the lower extending section of each vertical reinforcing bar is fixedly connected with a suspended ceiling purlin through a bolt.

2. The portal frame according to claim 1, characterized in that: The roof purlin is in a Z-shaped form, the suspended ceiling purlin is in a C-shaped form, the left / right side of the upper extending section of the vertical reinforcing bar is fixedly connected with the vertical part of the Z-shaped roof purlin through a bolt, and the left / right side of the lower extending section of the vertical reinforcing bar is fixedly connected with the back of the C-shaped suspended ceiling purlin through a bolt.

3. The portal frame of claim 1, wherein: The column is composed of a rectangular steel, and the vertical reinforcing bar is composed of a rectangular steel or a C-shaped steel.

4. The portal frame of claim 1, wherein: A ridge column is clamped at the joint of the left steel beam and the right steel beam, the ridge column is composed of a rectangular steel, and the front and back sides of the ridge column are fixedly connected with the back of the C-shaped steel constituting the left steel beam and the right steel beam through bolts respectively.

5. The portal frame according to claim 1, wherein: The portal frame further comprises horizontal support beams composed of rectangular steels or C-shaped steels, and the left and right ends of the horizontal support beams are clamped between the back of two C-shaped steels constituting the left steel beam or the right steel beam and fixedly connected through bolts.

6. The portal frame according to claim 1, wherein: The portal frame further comprises left and right haunched beams, each of which is composed of two back-to-back C-shaped steels, one end of the left haunched beam is fixedly connected with the left column through a bolt, the other end of the left haunched beam is fixedly connected with the left steel beam through a bolt, one end of the right haunched beam is fixedly connected with the right column through a bolt, and the other end of the right haunched beam is fixedly connected with the right steel beam through a bolt.

7. The portal frame according to claim 6, characterized in that: One end of the two C-shaped steels constituting the left / right haunched beam is fixedly connected with the front and back sides of the left / right column clamped therebetween through bolts, and the other end of the two C-shaped steels constituting the left / right haunched beam is fixedly connected with the back of the two C-shaped steels constituting the left / right steel beam through bolts.

8. The portal frame of claim 7, wherein: The other end of the two C-shaped steels constituting the left / right haunched beam is a parallelogram plane with the side wings cut off, a rectangular fixing block is clamped between the two parallelogram planes, and the back of the two C-shaped steels constituting the left / right haunched beam is fixedly connected with the rectangular fixing block and the back of the C-shaped steel constituting the left / right steel beam adjacent thereto through bolts.

9. The portal frame according to claim 1, wherein: The portal frame further comprises a plurality of reinforcing members, which are clamped and fixed between the back of two C-shaped steels constituting the steel beam.

10. The portal frame of claim 9, wherein: The reinforcing member is composed of a rectangular steel or a C-shaped steel.

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