Supporting system for large-span steel net rack aluminum plate roof

Abstract

The invention discloses a supporting system for a large-span steel truss aluminum plate roof, and belongs to the technical field of building construction. The supporting system comprises a supporting system body arranged between a steel net frame and an aluminum plate roof. The supporting system body comprises a support, a horizontal keel and a vertical keel. A support is fixedly connected to each bolt ball at the top of the steel net rack; a row of horizontal keels are jointly supported and mounted among the plurality of supports in the same row; each row of horizontal keels is fixedly connected with a plurality of vertical keels, and the top end of each vertical keel is connected to the bottom of the aluminum plate roof in a supporting mode. Through the application of the method, the engineering construction progress is effectively accelerated, the engineering construction quality and construction safety are improved, powerful and reliable supporting of the metal roof under the conditions of large span and large height difference of the steel truss metal roof is achieved, firm connection, safety and stability of the metal roof are guaranteed, meanwhile, the smoothness of metal roof lines is guaranteed, and the construction efficiency is improved. And the impression effect of the metal roof is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and particularly relates to the construction of a steel grid metal roof, in particular to a support system for a large-span steel grid aluminum plate roof. Background Art

[0002] With the progress of the times, people pay more and more attention to the pursuit of spiritual life. For example, in the field of architecture, there are more and more large-scale venues used for sports events, cultural performances, exhibitions, etc., and the styles of buildings are also developing in diversity.

[0003] Modern large-scale venues basically use steel grid structures, and some will also construct metal roofs on top of the steel grid structure to make fully enclosed venue buildings. However, for some large-scale venues with large spans, large height differences between the roof and the steel grid, and thin metal roofs, during the actual construction process, due to the lack of strong support under the metal roof, it is easy to cause the metal roof to deform significantly, which greatly affects the construction quality and safety of large-scale venues. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and to provide a support system for a large-span steel grid bracket aluminum plate roof.

[0005] The present invention is achieved through the following technical solutions: A support system for a large-span steel grid aluminum roof comprises a steel grid and an aluminum roof, wherein a support system is arranged between the steel grid and the aluminum roof, and the support system comprises a support, a horizontal keel and a vertical keel; a support is fixedly connected to each bolt ball on the top of the steel grid, and a row of horizontal keels are supported and installed between a plurality of supports in the same row; a plurality of vertical keels are fixedly connected to each row of horizontal keels, and the top end of each vertical keel is supported and connected to the bottom of the aluminum roof.

[0006] Furthermore, a vertical prefabricated bolt hole is provided at the top of each bolt ball at the top of the steel grid frame, and the support includes inner and outer screws, a screw rod, a lower C-shaped slot, a lower locking nut, an upper C-shaped slot and an upper locking nut. The inner and outer screws are installed in the prefabricated bolt holes of the bolt balls, and the outer threads of the inner and outer screws are engaged with the threads of the prefabricated bolt holes; the bottom end of the screw rod is installed in the inner and outer screws, and the inner threads of the inner and outer screws are engaged with the threads of the screw rod; a lower locking nut, a lower C-shaped slot, an upper C-shaped slot and an upper locking nut are installed on the screw rod from bottom to top, and the inner threads of the lower locking nut and the inner threads of the upper locking nut are engaged with the threads of the screw rod, and the lower C-shaped slot and the upper C-shaped slot are both slidably connected with the screw rod; the notch of the lower C-shaped slot is set upward, and the notch of the upper C-shaped slot is set downward, and the horizontal keel is clamped and fixed between the lower C-shaped slot and the upper C-shaped slot.

[0007] Furthermore, the horizontal keel is composed of two horizontal square steel pipes arranged side by side. The two horizontal square steel pipes are placed on both sides of the screw and are clamped and fixed between the lower C-shaped slot and the upper C-shaped slot.

[0008] Furthermore, the vertical keel adopts a vertical square steel pipe, and the bottom end of the vertical square steel pipe is fixedly connected to the two horizontal square steel pipes of the horizontal keel.

[0009] Furthermore, the bottom end of the vertical square steel pipe is fixedly connected to the two horizontal square steel pipes through two angle steel sections, the vertical plates of the two angle steel sections are fixedly connected to the two sides of the bottom end of the vertical square steel pipe through bolts, and the horizontal plates of the two angle steel sections are fixedly connected to the top ends of the two horizontal square steel pipes through bolts.

[0010] Furthermore, a bottom locking nut is installed on the screw rod, the internal thread of the bottom locking nut is engaged with the thread of the screw rod, and the bottom locking nut abuts against the top openings of the inner and outer screws.

[0011] Furthermore, gaskets are arranged between the lower locking nut and the lower C-shaped slot, between the upper locking nut and the upper C-shaped slot, and between the bottom locking nut and the top openings of the inner and outer screws.

[0012] Through the application of the present invention, the progress of the project construction is effectively accelerated, the quality and safety of the project construction are improved, and the metal roof is effectively and reliably supported under the conditions of large span and large height difference of the steel grid metal roof. While ensuring that the metal roof is firmly connected, safe and stable, the smoothness of the metal roof lines is also ensured, greatly improving the visual effect of the metal roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings herein are used to provide further explanation of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their description are used to explain the present invention and do not constitute improper limitations on the present invention.

[0014] Figure 1 This is a schematic diagram of the structure of a large venue with a large-span steel grid bracket and aluminum roof.

[0015] Figure 2 It is a partial front view structural schematic diagram of the support system described in the present invention.

[0016] Figure 3 It is a partial side structural schematic diagram of the support system of the present invention.

[0017] In the figure: 1-steel grid, 2-aluminum sheet roof, 3-horizontal keel, 4-vertical keel, 5-bolt ball, 6-prefabricated bolt hole, 7-inner and outer screws, 8-screw, 9-lower C-shaped slot, 10-lower locking nut, 11-upper C-shaped slot, 12-upper locking nut, 13-bottom locking nut, 14-angle steel segment. DETAILED DESCRIPTION

[0018] In order to make those skilled in the art better understand the present invention, the present invention is further clearly and completely described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the absence of conflict, the features in the embodiments and examples of this application can be combined with each other.

[0019] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "top", "bottom", "up", "down", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0021] like Figure 2 and Figure 3As shown, this embodiment provides a support system for a large-span steel grid aluminum roof, including a steel grid 1 and an aluminum roof 2, wherein a support system is arranged between the steel grid 1 and the aluminum roof 2; the support system includes a support, a horizontal keel 3 and a vertical keel 4; a support is fixedly connected to each bolt ball on the top of the steel grid 1, and a row of horizontal keels 3 are supported and installed between several supports in the same row; several vertical keels 4 are fixedly connected to the horizontal keels 3 of each row, and the top end of each vertical keel 4 is supported and connected to the bottom of the aluminum roof 2.

[0022] A vertical prefabricated bolt hole 6 is arranged at the top of each bolt ball 5 at the top of the steel grid 1. The support comprises inner and outer screws 7, a screw rod 8, a lower C-shaped slot 9, a lower locking nut 10, an upper C-shaped slot 11, an upper locking nut 12 and a bottom locking nut 13. The inner and outer screws 7 are installed in the prefabricated bolt holes 6 of the bolt balls 5, and the outer threads of the inner and outer screws 7 are engaged with the threads of the prefabricated bolt holes 6; the bottom end of the screw rod 8 is installed in the inner and outer screws 7, and the inner threads of the inner and outer screws 7 are engaged with the threads of the screw rod 8; the bottom locking nut 13, the lower locking nut 10, the lower C-shaped slot 9, the upper C-shaped slot 11 and the upper locking nut 12, and the bottom locking nut 13 are sequentially installed on the screw rod 8 from bottom to top. The internal thread of the lower locking nut 10 and the internal thread of the upper locking nut 12 are all engaged with the thread of the screw rod 8, the lower C-shaped slot 9 and the upper C-shaped slot 11 are all slidingly connected with the screw rod 8, the notch of the lower C-shaped slot 9 is set upward, and the notch of the upper C-shaped slot 11 is set downward; the bottom locking nut 13 abuts against the top hole of the inner and outer screws 7, the lower locking nut 10 abuts against the bottom of the lower C-shaped slot 9, and the upper locking nut 12 abuts against the top of the upper C-shaped slot 11, and gaskets are arranged between the bottom locking nut 13 and the top hole of the inner and outer screws 7, between the lower locking nut 10 and the lower C-shaped slot 9, and between the upper locking nut 12 and the upper C-shaped slot 11.

[0023] The horizontal keel 3 is clamped and fixed between the lower C-shaped slot 9 and the upper C-shaped slot 11; the horizontal keel 3 is composed of two horizontal square steel pipes arranged side by side, and the two horizontal square steel pipes are placed on both sides of the screw 8 and are clamped and fixed between the lower C-shaped slot 9 and the upper C-shaped slot 11.

[0024] The vertical keel 4 adopts a vertical square steel tube, and the bottom end of the vertical square steel tube is fixedly connected to the two horizontal square steel tubes of the horizontal keel 3; the bottom end of the vertical square steel tube is fixedly connected to the two horizontal square steel tubes through two angle steel sections 14, and the vertical plates of the two angle steel sections 14 are fixedly connected to the two sides of the bottom end of the vertical square steel tube through bolts, and the horizontal plates of the two angle steel sections 14 are fixedly connected to the top ends of the two horizontal square steel tubes through bolts. Example 2

[0025] This embodiment provides a construction method for constructing a large-span steel grid bracket aluminum plate roof using the support system described in Example 1. Figure 1 The figure shows a large venue with a large-span steel grid bracket and aluminum plate roof. The aluminum plate roof 2 is shaped with brackets. The height difference between the steel grid 1 and the aluminum plate roof 2 is 4.242m, the span is 13.4m, and the arc radius is 2.3m. The aluminum plate in the aluminum plate roof 2 is a flexible material with a thickness of 1.3mm, and there is about 1400m on the aluminum plate roof 2. 2 The skylight roof is prone to significant deformation because the aluminum roof 2 and the bottom of the skylight roof have no strong support. Therefore, the support system described in Example 1 is used to construct the large-span steel grid 1 bracket aluminum roof 2 of the large venue.

[0026] The above construction method includes the following steps: measurement and layout → support system installation → roof metal gutter installation → corrugated steel plate installation → insulation layer, waterproof breathable layer laying and installation → metal roof panel processing, laying and installation → finishing → inspection.

[0027] 1) Measurement and layout Before construction, the steel grid is re-measured, and the flatness, verticality, and elevation of the working surface are re-checked and tested on the entire roof using a theodolite and a level. After that, according to the actual size of the on-site construction and the spacing arranged in the construction drawings, the installation position of the gutter and support system is measured, and the surface of the steel grid is marked. Before installation, the working surface is re-measured. If any part exceeds the standard allowable error during measurement, it must be adjusted before the aluminum roof system is installed. Straightness and spacing are two interrelated items. If there is a deviation exceeding the standard, it must be raised in time, and the problem part must be rectified. Construction can only be carried out after it is qualified.

[0028] 2) Support system installation The supporting system includes a support, a horizontal keel 3 and a vertical keel 4.

[0029] The support includes inner and outer screws 7, a screw rod 8, a lower C-shaped slot 9, a lower locking nut 10, an upper C-shaped slot 11, an upper locking nut 12 and a bottom locking nut 13. The inner and outer screws 7 are installed at the bottom end of the screw rod 8. The bottom locking nut 13, the lower locking nut 10, the lower C-shaped slot 9, the upper C-shaped slot 11 and the upper locking nut 12 are installed on the screw rod 8 from bottom to top. Gaskets are set between the bottom locking nut 13 and the top holes of the inner and outer screws 7, between the lower locking nut 10 and the lower C-shaped slot 9, and between the upper locking nut 12 and the upper C-shaped slot 11.

[0030] The horizontal keel 3 is composed of two horizontal square steel tubes arranged side by side.

[0031] The vertical keel 4 is made of vertical square steel pipe.

[0032] During installation, a support is fixedly connected to each bolt ball on the top of the steel grid 1, and a row of horizontal keels 3 are jointly supported and installed between several supports in the same row. Several vertical keels 4 are fixedly connected to the horizontal keels 3 in each row, and the top end of each vertical keel 4 is supported and connected to the bottom of the aluminum roof 2.

[0033] The specific installation method is as follows: the top of each bolt ball 5 located at the top of the steel grid 1 is prefabricated with a prefabricated bolt hole 6 for installing the support, and the inner and outer screws 7 of the support are installed in the prefabricated bolt holes 6 at the top of the bolt ball 5 and locked by the bottom locking nut 13 and the gasket; the two horizontal square steel pipes as the horizontal keel 3 are placed on both sides of the screw rod 8 of the support and are clamped and fixed between the lower C-shaped slot 9 and the upper C-shaped slot 11, the lower C-shaped slot 9, the two horizontal square steel pipes, and the upper C-shaped slot 11 is locked into a whole by the lower locking nut 10, the upper locking nut 12 and the gasket; the bottom end of the vertical square steel pipe serving as the vertical keel 4 is fixedly connected to the two horizontal square steel pipes serving as the horizontal keel 3, the bottom end of the vertical square steel pipe is fixedly connected to the two horizontal square steel pipes through two angle steel sections 14, the vertical plates of the two angle steel sections 14 are fixedly connected to the two sides of the bottom end of the vertical square steel pipe through bolts, and the horizontal plates of the two angle steel sections 14 are fixedly connected to the top ends of the two horizontal square steel pipes through bolts.

[0034] 3) Roof metal gutter installation a. Gutter keel installation Install the gutter frame according to the spacing of the in-depth design, and check whether the elevation of the top surface of the frame is consistent. When installing the gutter frame, first perform positioning spot welding on the frame. After spot welding, the full-length frame on the upper openings on both sides should be horizontal and straight to ensure the overall connection with the eaves and roof and the appearance requirements. After confirmation, perform full welding. Pay attention to the slope of the gutter when installing the frame. When laying the slope, use a level to mark the elevation line of the keel every 3 meters according to the requirements of the drawing, and install the keel according to the elevation line. The elevation of the gutter frame ensures that each section of the gutter can be fully in contact with the frame, so that the gutter frame is evenly stressed. After the gutter frame is welded, clean and inspect the welds. After passing the inspection of the relevant departments, apply anti-rust paint to the welding parts for secondary anti-rust treatment.

[0035] b. Metal gutter installation The connection between the two gutter sections is lap argon arc welding. Put a layer of rock wool under the gutter weld, and put a layer of 15cm wide thin iron sheet on the rock wool to protect the insulation layer under the gutter weld from being burned. Grind the cut edge clean before overlapping the gutter. When overlapping, pay attention to the gap of the overlap seam not exceeding 1mm, and the overlap length is about 10mm. Before welding, spot weld every 10cm, and weld only after confirming that the welding requirements are met.

[0036] c.Eaves installation The gutter eaves are connected with drip sheets and rivets to prevent rainwater from flowing into the roof panels. The metal roof interfaces are filled with foam sealing strips, and the filling should be beautiful.

[0037] d. Anticorrosion treatment Before applying anti-corrosion paint to on-site welds, the welding slag, spatter and dirt on the weld surface must be thoroughly cleaned, and then two coats of anti-rust primer should be applied.

[0038] 4) Installation of corrugated steel sheet The roof bottom plate is made of corrugated steel plate. During installation, self-tapping screws are used to fix the corrugated steel plate to the bottom plate keel. The longitudinal overlap of two adjacent corrugated steel plates shall not be less than 100mm and the transverse overlap shall not be less than 50mm. The bottom plate keel is fixedly connected to the top of the corresponding vertical keel in the support system by bolts.

[0039] 5) Laying and installation of thermal insulation layer and waterproof breathable layer When installing the insulation layer, first measure and lay out the position and spacing of the bottom plate keel of the corrugated steel plate, and then lay and fix the insulation layer; after the insulation layer is installed, follow up with the laying of the waterproof membrane in a timely manner.

[0040] 6) Processing, laying and installation of metal roof panels Because the four corners of the roof in this embodiment are brackets, the height difference between the steel grid and the 1.3mm thick aluminum plate roof layer is 4.242m, the span is 13.4m, and the arc radius is 2.3m. The arc is large, so the layout design and processing must be carried out in advance to ensure the smoothness of the lines. The aluminum tiles, prefabricated aluminum rafters, drainage grooves and other components are manufactured using factory molds, and the prefabricated metal components are installed on the keel by on-site welding and assembly.

[0041] When laying and installing, it is necessary to set the board end positioning line. Generally, the distance from the board to the edge of the gutter is used as the control line. The length of the board extending from the edge of the gutter should be greater than the design to facilitate trimming. The construction workers lift the roof panel to the installation position, align the control line of the board end when in place, and then press the overlapped edge into the overlapped edge of the previous board, and finally check whether the overlapped edge is tightly connected.

[0042] 7) Finishing After the vertical edge biting and the edge closing positions are adjusted, a special electric biting machine is used to bit the edges. The bitten edges must be continuous and flat without distortion or cracks. During the biting machine biting and crawling project, the area within 1 meter in front of it must be clamped tightly to ensure that the overlapping edges are tightly joined. The roof panels installed on the same day must be bitten to prevent the roof panels from being damaged or blown away by the wind in strong winds.

[0043] 8) Acceptance After the construction is completed, a self-inspection will be carried out first. If the self-inspection is qualified, it will be reported to the supervision and construction unit for acceptance.

[0044] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The phrase "includes an element defined by ..." does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0045] The above-mentioned embodiments only express the best implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A support system for a large-span steel grid aluminum roof, comprising a steel grid and an aluminum roof, characterized in that: A support system is arranged between the steel grid and the aluminum roof, and the support system includes a support, a horizontal keel and a vertical keel; a support is fixedly connected to each bolt ball on the top of the steel grid, and a row of horizontal keels are supported and installed between several supports in the same row; several vertical keels are fixedly connected to the horizontal keels in each row, and the top end of each vertical keel is supported and connected to the bottom of the aluminum roof.

2. The support system for a large-span steel grid aluminum plate roof according to claim 1 is characterized in that: A vertical prefabricated bolt hole is arranged at the top of each bolt ball at the top of the steel grid frame, and the support comprises inner and outer screws, a screw rod, a lower C-shaped slot, a lower locking nut, an upper C-shaped slot and an upper locking nut. The inner and outer screws are installed in the prefabricated bolt holes of the bolt balls, and the outer threads of the inner and outer screws are engaged with the threads of the prefabricated bolt holes; the bottom end of the screw rod is installed in the inner and outer screws, and the inner threads of the inner and outer screws are engaged with the threads of the screw rod; a lower locking nut, a lower C-shaped slot, an upper C-shaped slot and an upper locking nut are successively installed on the screw rod from bottom to top, and the inner threads of the lower locking nut and the inner threads of the upper locking nut are engaged with the threads of the screw rod, and the lower C-shaped slot and the upper C-shaped slot are both slidably connected with the screw rod; the notch of the lower C-shaped slot is arranged upward, and the notch of the upper C-shaped slot is arranged downward, and the horizontal keel is clamped and fixed between the lower C-shaped slot and the upper C-shaped slot.

3. The support system for a large-span steel grid aluminum plate roof according to claim 2 is characterized in that: The horizontal keel is composed of two horizontal square steel pipes arranged side by side. The two horizontal square steel pipes are respectively placed on both sides of the screw rod and are both clamped and fixed between the lower C-shaped slot and the upper C-shaped slot.

4. The support system for a large-span steel grid aluminum plate roof according to claim 3 is characterized in that: The vertical keel adopts a vertical square steel pipe, and the bottom end of the vertical square steel pipe is fixedly connected to the two horizontal square steel pipes of the horizontal keel.

5. The support system for a large-span steel grid aluminum plate roof according to claim 4 is characterized in that: The bottom end of the vertical square steel pipe is fixedly connected to the two horizontal square steel pipes through two angle steel sections, the vertical plates of the two angle steel sections are fixedly connected to the two sides of the bottom end of the vertical square steel pipe through bolts, and the horizontal plates of the two angle steel sections are fixedly connected to the top ends of the two horizontal square steel pipes through bolts.

6. The support system for a large-span steel grid aluminum roof according to any one of claims 2 to 5, characterized in that: A bottom locking nut is installed on the screw rod, the internal thread of the bottom locking nut is engaged with the thread of the screw rod, and the bottom locking nut abuts against the top openings of the inner and outer screws.

7. The support system for a large-span steel grid aluminum plate roof according to claim 6 is characterized in that: Gaskets are arranged between the lower locking nut and the lower C-shaped slot, between the upper locking nut and the upper C-shaped slot, and between the bottom locking nut and the top openings of the inner and outer screws.

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