Factory building rigid frame top roof stand column connecting structure

Abstract

The utility model discloses a factory building rigid frame top roof stand column connecting structure which comprises a prefabricated rigid frame column end and a prefabricated roof stand column component, the prefabricated rigid frame column end comprises first reinforcing end plates arranged on rigid frame column wing plates, and an upper transverse reinforcing plate located on the top of a rigid frame column web is arranged between the first reinforcing end plates. Two rows of fixing plates are arranged at the top of the upper transverse reinforcing plate, a vertical plate corresponding to a rigid frame column web is arranged between the fixing plates, and a bearing plate is arranged at the tops of the vertical plate and the fixing plates; the H-shaped steel comprises an H-shaped steel main body which is provided with a stiffening rib and a bottom plate; the bearing plate and the bottom plate are both provided with first bolt holes located in the two sides of a web of the rigid frame column, and the end of the prefabricated rigid frame column is fixedly connected with the prefabricated roof stand column component. The roof stand column is ingenious in structure, rapid in construction, safe and reliable, the roof stand column can be directly placed above a steel beam and steel column joint, when a rigid frame column is a plant side truss, a rigid frame can be tightly attached to the edge of the outer contour of a plant, and therefore the space utilization rate of the plant is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure factory building construction, in particular to a factory building rigid frame roof column connection structure. Background Art

[0002] Steel structure buildings have many advantages such as light weight, high strength, large span and fast construction speed, so industrial plants mostly use this type of building system. Factors such as drainage need to be considered from the ridge to the eaves of the factory roof, so a certain slope needs to be set. At the same time, considering the aesthetic requirements such as neat appearance of the building, parapet column components from the top of the steel beam to the height of the ridge are usually set on the side frame. The outside of the parapet column is set with the same purlins and wall panels as the exterior wall to ensure the neat and beautiful outline of the facade.

[0003] In addition, the factory roof takes into account factors such as lighting, ventilation and smoke exhaust, so it is necessary to install a roof air tower or skylight component on the top of the rigid frame. This type of component usually uses roof columns and steel beams as supporting structures.

[0004] Because the steel columns and beams of the factory building are mostly H-shaped steel sections, the web direction is along the span direction. In order to facilitate the connection of parapet columns at the side beams and beam-column nodes and ensure the safety of the structure, wind-resistant columns or buttress columns perpendicular to the web of the frame columns are usually set at a certain distance outside the frame. The flanges of the parapet columns and wind-resistant columns or buttress columns are welded or bolted (see Figure 1 ). At the roof skylight, when the skylight span is small, the skylight columns are usually erected on steel beams (see Figure 2 ).

[0005] When the use space of the factory building is limited and the rigid frame is close to the outer boundary line of the factory building, the wind-resistant column can be set at the lower part of the steel beam of the rigid frame with a flexible connection. The wall column cannot be set at this time. When the span of the roof skylight is large, multiple roof columns need to be added in the middle. Considering the aesthetic requirements such as symmetrical and neat appearance of the building, skylight columns are usually added directly above the nodes of multiple steel beams and columns. If the roof column is directly set on the node of the steel beam and column, there are many end plates, stiffening ribs and bolts at the node, which makes the construction difficult. There may even be no operating space for the construction of the roof column due to the dense components, which will affect the installation of the wall. Summary of the invention

[0006] In order to solve the above problems, the utility model provides a connection structure of the roof columns of the factory building rigid frame, and the following technical solutions can be specifically adopted:

[0007] The utility model discloses a factory building rigid frame roof column connection structure, comprising a prefabricated rigid frame column end and a prefabricated roof column component, wherein the prefabricated rigid frame column end comprises a first reinforcing end plate arranged on the rigid frame column wing plate, an upper transverse reinforcing plate located on the top of the rigid frame column web is arranged between the first reinforcing end plates, two rows of fixing plates are arranged on the top of the upper transverse reinforcing plate, vertical plates corresponding to the rigid frame column web are arranged between the fixing plates, and supporting plates are arranged on the top of the vertical plates and the fixing plates; the prefabricated roof column component comprises an H-shaped steel body, the web of the H-shaped steel body is arranged corresponding to the web of the rigid frame column, a plurality of stiffening ribs are arranged between the wing plates of the H-shaped steel body, and a bottom plate is arranged at the bottom of the H-shaped steel body; the supporting plate and the bottom plate are both provided with first bolt holes located on both sides of the rigid frame column web, and the prefabricated rigid frame column end and the prefabricated roof column component are fixedly connected by first bolts passing through the first bolt holes.

[0008] Prefabricated beam ends are arranged on both sides of the prefabricated rigid frame column end, and the prefabricated beam end includes a second reinforcing end plate arranged at the end of the cross beam; the second reinforcing end plate and the first reinforcing end plate are both provided with second bolt holes located on both sides of the rigid frame column web, and the prefabricated rigid frame column end and the prefabricated beam end are fixedly connected by second bolts passing through the second bolt holes.

[0009] A lower transverse reinforcing plate located below the upper transverse reinforcing plate is also provided between the first reinforcing end plates, and the lower transverse reinforcing plates are disposed on both sides of the web of the rigid frame column.

[0010] The connection between the upper transverse reinforcing plate and the first reinforcing end plate is at the same height as the connection between the second reinforcing end plate on the same side and the upper wing plate at the end of the precast beam, and the connection between the lower transverse reinforcing plate and the first reinforcing end plate is at the same height as the connection between the second reinforcing end plate on the same side and the lower wing plate at the end of the precast beam.

[0011] The fixing plates are symmetrically arranged on both sides of the vertical plate, and at least two pairs of fixing plates are arranged.

[0012] The end of the prefabricated steel frame column is provided with a first horizontal reinforcing rib connecting the web of the steel frame column and the first reinforcing end plate, and a second horizontal reinforcing rib is provided between the web of the prefabricated beam end and the second reinforcing end plate, and the first horizontal reinforcing rib and the second horizontal reinforcing rib are provided correspondingly.

[0013] A first vertical reinforcing rib is arranged between the upper wing plate and the second reinforcing plate at the end of the precast beam, and a second vertical reinforcing rib is arranged between the lower wing plate and the second reinforcing plate at the end of the precast beam. Both the first vertical reinforcing rib and the second vertical reinforcing rib are arranged coplanar with the web of the rigid frame column.

[0014] The utility model provides a factory building rigid frame roof column connection structure, which is realized by means of component prefabrication and on-site installation. It has a clever structure, fast construction, safety and reliability, and can place the roof columns directly above the steel beam and steel column nodes. When the rigid frame columns are the side frames of the factory building, the rigid frame can be placed close to the edge of the outer contour of the factory building, thereby improving the space utilization rate of the factory building. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation location of the existing parapet.

[0016] Figure 2 It is a schematic diagram of the installation position of the existing roof skylight columns.

[0017] Figure 3 It is a structural schematic diagram of the utility model.

[0018] Figure 4 yes Figure 3 Schematic diagram of the connection structure between the precast frame column end and the precast beam end.

[0019] Figure 5 yes Figure 3 Structural diagram of prefabricated roof column components. DETAILED DESCRIPTION

[0020] The following is a detailed description of an embodiment of the utility model in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific construction process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0021] like Figure 3-5 As shown, the factory building rigid frame roof column connection structure described in the utility model is formed by prefabricated rigid frame column end A, prefabricated beam end B and prefabricated roof column component C made of Q235 or Q355 steel being connected by bolts. Each component can be prefabricated in advance, and only needs to be hoisted and positioned on site, and the installation can be quickly completed by bolting.

[0022] The above-mentioned prefabricated steel frame column end A includes a first reinforcing end plate 1 welded to the steel frame column flange, an upper transverse reinforcing plate 2 located on the top of the steel frame column web is welded between the first reinforcing end plates 1, a vertical plate 3 corresponding to the steel frame column web is welded on the top of the upper transverse reinforcing plate 2, and two rows of fixing plates 5 are welded at the bottom of the supporting plate 4 located above the steel frame plate 3, and the fixing plates 5 are clamped on both sides of the vertical plate 3. Usually, a lower transverse reinforcing plate 6 located below the upper transverse reinforcing plate 2 is also welded between the first reinforcing end plates 1, and the lower transverse reinforcing plates 6 are on both sides and are arranged on both sides of the steel frame column web. The number of the two rows of fixing plates 5 is equal, and they are symmetrically arranged on both sides of the vertical plate 3, and the fixing plates 5 are at least two pairs, so that the vertical plate 3 can be firmly clamped. The prefabricated beam end B is arranged on both sides of the prefabricated steel frame column end A, and each prefabricated beam end B includes a second reinforcing end plate 7 welded to the end of the crossbeam. The first reinforced end plate 1 and the second reinforced end plate 7 are both provided with second bolt holes located on both sides of the web of the rigid frame column. The prefabricated rigid frame column end A and the prefabricated beam end B are fixedly connected by second bolts 8 passing through the second bolt holes.

[0023] In order to improve the structural stability, the connection between the upper transverse reinforcing plate 2 and the first reinforcing end plate 1 is at the same height as the connection between the second reinforcing end plate 7 on the same side and the upper wing plate of the precast beam end B, and the connection between the lower transverse reinforcing plate 6 and the first reinforcing end plate 1 is at the same height as the connection between the second reinforcing end plate 7 on the same side and the lower wing plate B of the precast beam end. Further, a plurality of rectangular first horizontal reinforcing ribs 9 connecting the web of the frame column and the first reinforcing end plate 1 are welded on the precast frame column end A, a plurality of rectangular second horizontal reinforcing ribs 10 are welded between the web of the precast beam end B and the second reinforcing end plate 7, and the adjacent first horizontal reinforcing ribs 9 and second horizontal reinforcing ribs 10 are arranged correspondingly. At the same time, a triangular first vertical reinforcing rib 11 is welded between the upper wing plate of the precast beam end B and the second reinforcing plate 7, and a triangular second vertical reinforcing rib 12 is welded between the lower wing plate of the precast beam end B and the second reinforcing plate 7, and the first vertical reinforcing rib 11 and the second vertical reinforcing rib 12 are arranged coplanar with the column web of the precast column end A.

[0024] The above-mentioned prefabricated roof column component C includes an H-shaped steel body, the web 13 of the H-shaped steel body is arranged corresponding to the web of the rigid frame column of the prefabricated rigid frame column end A, a plurality of equally spaced stiffening ribs 14 are welded between the wing plates of the H-shaped steel body, a bottom plate 15 is welded to the bottom of the H-shaped steel body, and the supporting plate 4 and the bottom plate 15 are both provided with first bolt holes located on both sides of the web of the rigid frame column. There is at least one first bolt hole on each side, and the prefabricated column end A and the prefabricated roof column component C can be connected together by installing a first bolt 16 in the first bolt hole.

[0025] Usually, the size of the bottom plate 15 is 10mm~50mm larger than the outer contour of the four corner projection of the H-shaped steel body in the prefabricated roof column component C, preferably 20~30mm, to ensure the operating space on both sides when the prefabricated roof column component C is welded with the bottom plate 15 using the fillet welding technology. The thickness of the above-mentioned bottom plate 15 is usually 10~40mm, preferably 14~25mm. The support plate 4 in the prefabricated rigid frame column end A is a rectangular plate, which is 20~50mm wider than the bottom plate 15 on each side; the thickness of the support plate 4 is 10~40mm, preferably 20~25mm and not less than the thickness of the bottom plate 15. The thickness of the fixing plate 5 is 6~20 mm, preferably 6~16mm. The thickness of the vertical plate 3, the first vertical reinforcing rib 11 and the second vertical reinforcing rib 12 is preferably the same as the thickness of the column web of the prefabricated rigid frame column end A. The thickness of the upper transverse reinforcing plate 2 and the lower transverse reinforcing plate 6 is preferably the same as the thickness of the steel frame column wing plate of the prefabricated steel frame column end A. The first reinforcing end plate 1 is welded to the steel frame column wing plate of the prefabricated steel frame column end A by groove welding technology, and is welded to the steel frame column web by double-sided fillet weld technology. The welding position of the fixing plate 5 corresponds to the web 13 of the upper prefabricated roof column component C, which is beneficial to the force transmission of the component. When the welding assembly of the supporting plate 4 and the fixing plate 5 is installed with the vertical plate 3, the contact surface of the fixing plate 5 and the upper transverse reinforcing plate 2 is positioned and aligned by planing and tightening technology, and then welded with the vertical plate 3 by fillet weld technology. When the height of the roof column is high or the local wind load is large, the contact surface of the supporting plate 4 and the bottom plate 15 is welded around by fillet weld technology to strengthen the overall connection between the roof column and the rigid frame and ensure the firmness of the roof column and the rigid frame. When the node bearing capacity requirement is high, vertical or oblique stiffening ribs can be added to the web of the rigid frame column between the upper transverse stiffening plate 2 and the lower transverse stiffening plate 6 of the prefabricated column end A to ensure the stability of the middle part of the node.

[0026] Compared with the prior art, the advantages of the utility model are as follows:

[0027] 1) Compared with the conventional factory building side frame, the utility model does not need to be equipped with supporting wall columns, and the parapet columns are directly placed on the top of the frame. The frame can be close to the outer edge of the factory building, so as to make full use of the internal space of the factory building and overcome the influence of various factors such as large equipment and small space on the usable area of ​​the factory building.

[0028] 2) The utility model solves the problem that when the roof columns are placed on the top of the rigid frame, the connection construction between the roof columns and the steel columns is affected by the dense end plates, stiffening ribs, bolts and other components at the steel beam and steel column nodes, thereby avoiding the welding difficulties at the dense components, cleverly avoiding the welding stress concentration problem at the nodes, and improving the construction efficiency at the same time.

[0029] 3) The utility model adopts the method of prefabrication of components, and only a small amount of bolt connection or local welding is required on site to quickly complete the installation of roof columns, thereby improving construction efficiency, reducing high-altitude operations, and having no impact on the building facade.

[0030] 4) The utility model cleverly utilizes the components at the ends of the factory beams and columns, and sets the bottom plate method on the roof columns to make full use of the node plate stiffening ribs of the beam-column connection. There are few connecting parts, and a small amount of local welding and planing and tightening technology are used to reasonably utilize the narrow space above the column head, avoiding the relationship with the dense stiffening ribs and bolts at the node. At the same time, the center of the roof column is located directly above the center of the column, avoiding the adverse factors of lateral torsion of the node. The structure is clever, the force is reasonable, and it is safe and reliable.

[0031] It should be noted that, in the description of the present invention, terms indicating orientation or positional relationships, such as "front", "rear", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Claims

1. A factory building rigid frame roof column connection structure, characterized in that: It comprises a prefabricated rigid frame column end and a prefabricated roof column component, the prefabricated rigid frame column end comprises a first reinforcing end plate arranged on the rigid frame column wing plate, an upper transverse reinforcing plate located on the top of the rigid frame column web is arranged between the first reinforcing end plates, two rows of fixing plates are arranged on the top of the upper transverse reinforcing plate, vertical plates corresponding to the rigid frame column web are arranged between the fixing plates, and supporting plates are arranged on the top of the vertical plates and the fixing plates; the prefabricated roof column component comprises an H-shaped steel body, the web of the H-shaped steel body is arranged corresponding to the web of the rigid frame column, a plurality of stiffening ribs are arranged between the wing plates of the H-shaped steel body, and a bottom plate is arranged at the bottom of the H-shaped steel body; the supporting plate and the bottom plate are both provided with first bolt holes located on both sides of the rigid frame column web, and the prefabricated rigid frame column end and the prefabricated roof column component are fixedly connected by first bolts passing through the first bolt holes.

2. The factory building rigid frame roof column connection structure according to claim 1 is characterized by: Prefabricated beam ends are arranged on both sides of the prefabricated rigid frame column end, and the prefabricated beam end includes a second reinforcing end plate arranged at the end of the cross beam; the second reinforcing end plate and the first reinforcing end plate are both provided with second bolt holes located on both sides of the rigid frame column web, and the prefabricated rigid frame column end and the prefabricated beam end are fixedly connected by second bolts passing through the second bolt holes.

3. The factory building rigid frame roof column connection structure according to claim 2 is characterized by: A lower transverse reinforcing plate located below the upper transverse reinforcing plate is also provided between the first reinforcing end plates, and the lower transverse reinforcing plates are disposed on both sides of the web of the rigid frame column.

4. The factory building rigid frame roof column connection structure according to claim 3 is characterized by: The connection between the upper transverse reinforcing plate and the first reinforcing end plate is at the same height as the connection between the second reinforcing end plate on the same side and the upper wing plate at the end of the precast beam, and the connection between the lower transverse reinforcing plate and the first reinforcing end plate is at the same height as the connection between the second reinforcing end plate on the same side and the lower wing plate at the end of the precast beam.

5. The factory building rigid frame roof column connection structure according to claim 4 is characterized in that: The fixing plates are symmetrically arranged on both sides of the vertical plate, and at least two pairs of fixing plates are arranged.

6. The factory building rigid frame roof column connection structure according to claim 5 is characterized in that: The end of the prefabricated steel frame column is provided with a first horizontal reinforcing rib connecting the web of the steel frame column and the first reinforcing end plate, and a second horizontal reinforcing rib is provided between the web of the prefabricated beam end and the second reinforcing end plate, and the first horizontal reinforcing rib and the second horizontal reinforcing rib are provided correspondingly.

7. The factory building rigid frame roof column connection structure according to claim 6 is characterized by: A first vertical reinforcing rib is arranged between the upper wing plate and the second reinforcing plate at the end of the precast beam, and a second vertical reinforcing rib is arranged between the lower wing plate and the second reinforcing plate at the end of the precast beam. Both the first vertical reinforcing rib and the second vertical reinforcing rib are arranged coplanar with the web of the rigid frame column.

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