Metal roof reverse hanging bottom plate connecting structure and construction method thereof

Abstract

The invention discloses a metal roof reverse-hanging bottom plate connecting structure and a construction method thereof.The metal roof reverse-hanging bottom plate connecting structure comprises a plurality of reverse-hanging bottom plate units, each reverse-hanging bottom plate unit comprises a plurality of unit plates and connecting battens, each unit plate is provided with two opposite adjacent sides in the width direction of the unit plate, the unit plates are arranged in the length direction of purlines of a metal roof, and the connecting battens are connected with the unit plates; the adjacent sides of every two adjacent unit plates are spliced together, the two ends of each connecting batten are in lap joint with the adjacent sides of every two adjacent unit plates respectively, and the multiple connecting battens are arranged in the length direction of an abutted seam between the adjacent sides of every two adjacent unit plates. The hanging piece is arranged below the purline and connected to the upper portions of the unit plates of the reverse hanging bottom plate unit, the two opposite sides of the hanging piece are turned upwards to form flange plates, and the two flange plates are detachably installed on the two opposite sides of the purline respectively. The problem that connection is not firm enough when a roof bottom plate of an existing metal roof system is reversely hung and installed is solved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a metal roof inverted bottom plate connection structure and a construction method thereof. Background Art

[0002] In a building structure without a suspended ceiling, the roof bottom plate of the metal roof system is usually reversed on the lower flange of the purlin, that is, the reverse hanging installation method is adopted, which also has the effect of a suspended ceiling. This reverse hanging installation method usually uses self-tapping screws to fix the roof bottom plate directly from the bottom to the lower flange of the purlin. The structure is simple, but the connection with self-tapping screws is not strong enough. When the workers step on the bottom plate by mistake during the next operation, they are likely to fall. In addition, during the installation process, the workers need to be suspended under the purlin to perform the self-tapping screw tightening operation, which poses great safety risks for high-altitude operations. Summary of the invention

[0003] In order to overcome the defects of the prior art, a metal roof inverted bottom plate connection structure and a construction method thereof are provided to solve the problem that the inverted installation of the roof bottom plate of the existing metal roof system has insufficient connection firmness.

[0004] In order to achieve the above object, a metal roof inverted bottom plate connection structure is provided, comprising:

[0005] A plurality of inverted floor units, the inverted floor units comprising a plurality of unit plates and connecting strips, the unit plates having two adjacent sides opposite to each other in the width direction of the unit plates, the plurality of unit plates being arranged along the length direction of the purlins of the metal roof, the adjacent sides of two adjacent unit plates being spliced ​​together, the two ends of the connecting strips being respectively overlapped on the adjacent sides of two adjacent unit plates, and the plurality of connecting strips being arranged along the length direction of the joint between the adjacent sides of two adjacent unit plates;

[0006] The hanging member arranged below the purlin is connected to the upper part of the plurality of unit plates of the inverted bottom plate unit, and the opposite sides of the hanging member are turned up to form flange plates, and the two flange plates are respectively and detachably installed on the opposite sides of the purlin.

[0007] Furthermore, the hanging member is arranged along the width direction of the unit plate.

[0008] Furthermore, the hanging parts and the connecting strips are arranged alternately.

[0009] Furthermore, the unit plate is a corrugated steel plate.

[0010] Furthermore, the flange plate is connected to the side of the purlin through a locking piece.

[0011] The present invention provides a construction method for a metal roof inverted bottom plate connection structure, comprising the following steps:

[0012] Divide the roof bottom plate into a plurality of inverted bottom plate units;

[0013] Assembling the plurality of inverted base plate units on the ground;

[0014] Based on the position of the purlins of the metal roof, a hanging piece is installed on the inverted hanging base plate unit;

[0015] The plurality of inverted bottom plate units are hoisted respectively, and the two flange plates of the hanging member are installed on the opposite sides of the purlin respectively.

[0016] The beneficial effects of the present invention are that the metal roof inverted bottom plate connection structure of the present invention is simple in form, the force transmission is clear and reliable, the construction and installation are convenient, and the unit installation method is adopted to complete the assembly of the roof panel unit on the ground, which greatly reduces the high-altitude operation. The unit panel and the connecting piece are connected by rivets, which is safe and reliable. At the same time, the strengthening connecting piece connects the roof panel horizontally as a whole, further improving the safety and reliability. The installation operation can also be completed on the top surface of the purlin, avoiding the safety risk of the lower suspension operation of the purlin. The structure is safe and reliable, and the construction is efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 The figure is a schematic structural diagram of a metal roof inverted bottom plate connection structure according to an embodiment of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the bottom of the metal roof inverted bottom plate connection structure according to an embodiment of the present invention.

[0020] Figure 3 The figure is a schematic diagram of the structure of the connection node between the hanging member and the purlin according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Reference Figures 1 to 3As shown, the present invention provides a metal roof inverted base plate connection structure, comprising: an inverted base plate unit 1 and a hanging member 2.

[0024] In this embodiment, there are multiple inverted floor units 1. The inverted floor unit 1 includes multiple unit plates 11 and connecting strips 12.

[0025] Specifically, in this embodiment, the unit plate 11 is a corrugated steel plate.

[0026] The unit panel 11 has two adjacent sides facing each other in the width direction of the unit panel 11. A plurality of unit panels 11 are arranged along the length direction of the purlin 3 of the metal roof.

[0027] The adjacent sides of two adjacent unit boards 11 are spliced ​​together. The two ends of the connecting strips 12 are respectively overlapped on the adjacent sides of two adjacent unit boards 11. A plurality of connecting strips 12 are arranged along the length direction of the splicing seam between the adjacent sides of two adjacent unit boards 11.

[0028] The hanging member 2 is arranged below the purlin 3. The hanging member 2 is connected to the upper part of the plurality of unit plates 11 of the inverted bottom plate unit 1. The opposite sides of the hanging member 2 are turned up to form flange plates 21. The two flange plates 21 are detachably mounted on the opposite sides of the purlin 3 respectively.

[0029] In this embodiment, the hanging member is a channel steel. The hanging member 2 is arranged along the width direction of the unit plate 11 .

[0030] As a preferred embodiment, the hanging parts 2 and the connecting strips 12 are arranged alternately.

[0031] In this embodiment, the flange plate 21 is connected to the side of the purlin 3 through a locking member. The locking member is a self-tapping screw.

[0032] The connecting strips are connected to the unit plates by rivets, and the hanging parts are connected to a plurality of unit plates by rivets.

[0033] The hanger is a thin-walled groove section, and the width of the hanger is adapted to the width of the purlin section. The width of the flange is not less than 1 / 3 of the height of the purlin section, and the thickness is not less than 2mm.

[0034] The connecting strips are thin steel strips with a width of not less than 50mm and a thickness of not less than 2mm.

[0035] The top surface of the unit plate is reliably connected to the hanging parts by rivets. The bottom surface of the unit plate is reliably connected to the horizontally arranged connecting strips by rivets to form an integral unit. The flange of the hanging parts is fastened to the purlin web by self-tapping screws, so that the bottom plate of the metal roofing system is reliably and stably fixed to the lower part of the purlin.

[0036] The metal roof inverted hanging base plate connection structure of the present invention is composed of a hanging piece, a unit plate and a connecting strip. The unit plate is reliably connected to the hanging piece by rivets, and the unit plates are further connected by connecting strips to form an inverted hanging base plate unit. After the inverted hanging base plate unit is hoisted below the purlin, the hanging piece is inserted into the purlin from the lower part of the purlin. After being adjusted to be accurately positioned, the flange of the hanging piece is reliably connected to the web of the purlin by a locking piece, thereby completing the installation of the unit plate.

[0037] The present invention provides a construction method for a metal roof inverted bottom plate connection structure, comprising the following steps:

[0038] S1, dividing the roof bottom plate into a plurality of inverted bottom plate units 1.

[0039] S2, assembling a plurality of inverted base plate units 1 on the ground.

[0040] S3. Install the hanging parts 2 on the inverted base plate unit 1 based on the position of the purlins 3 of the metal roof.

[0041] S4, hoisting a plurality of inverted bottom plate units 1 respectively, and installing the two flange plates 21 of the hanging member 2 on the opposite sides of the purlin 3 respectively.

[0042] The construction method of the metal roof inverted base plate connection structure of the present invention divides the metal roof into a plurality of inverted base plate units and determines the installation sequence of the inverted base plate units.

[0043] According to the purlin layout and unit board layout of the metal roof system, combined with the hoisting capacity of the bottom plate hoisting equipment, the unit board installation units are divided and the installation sequence of the unit board units is determined. In general, the length of the hoisting unit is the length of a single unit board, and the width of the hoisting unit is not less than the sum of the widths of three unit boards.

[0044] When assembling the inverted-hanging floor unit on the ground, assemble the inverted-hanging floor unit according to the installation sequence of the inverted-hanging floor unit.

[0045] The specific steps are:

[0046] a. Lay the unit board on the ground assembly site, adjust the alignment and temporarily fix it with a clamp;

[0047] b. Pop up the purlin axis position on the top surface of the unit plate;

[0048] c. Place the hanging parts on the top surface of the unit board so that the center line of the hanging parts is aligned with the axis of the purlin;

[0049] d. Use rivets to fasten the hanging parts to multiple unit boards. The distance between rivets should not be greater than 200mm.

[0050] e. Place the connecting strips perpendicular to the longitudinal lap joint of the unit board in the center on the top surface of the unit board, and fasten the connecting strips to the unit board with rivets. The connecting strips are placed parallel to the axis of the purlins, located in the middle of the two purlin axes, with a spacing of no more than 2 times the spacing of the purlins. There are no less than 2 rivets on each side of the lap joint. The unit board installation unit is assembled.

[0051] The flange of the hanging member is fixedly connected to the web of the purlin through the integral hoisting installation unit.

[0052] Specifically, the assembled unit panel units are hoisted to the corresponding purlins of the roof installation position according to the installation sequence. After measuring and adjusting the alignment, the hanging parts are inserted into the purlins so that the web of the hanging parts fits tightly with the lower flange of the purlins. Then, the flange of the hanging parts is connected and fastened with the web of the purlins with self-tapping screws. The spacing between the self-tapping screws should not be greater than 200mm. The unit panel unit is installed.

[0053] Complete the bottom assembly and high-altitude installation of all unit panel units in sequence.

[0054] After each inverted base plate unit is installed and tightened, measurement and verification should be carried out, and installation deviations should be adjusted in time to avoid accumulation of installation deviations and affect the overall installation effect.

[0055] The metal roof inverted bottom plate connection structure of the present invention is simple in form, the force transmission is clear and reliable, the construction and installation are convenient, and the unit installation method is adopted to complete the assembly of the roof panel units on the ground, which greatly reduces the high-altitude operations. The unit panels and the connecting parts are connected by rivets, which is safe and reliable. At the same time, the strengthening connecting parts connect the roof panels horizontally as a whole, which further improves the safety and reliability. The installation operation can also be completed on the top surface of the purlin, avoiding the safety risk of the suspension operation of the lower part of the purlin. The structure is safe and reliable, and the construction is efficient and convenient.

[0056] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A metal roof inverted bottom plate connection structure, characterized in that: include: A plurality of inverted floor units, the inverted floor units comprising a plurality of unit plates and connecting strips, the unit plates having two adjacent sides opposite to each other in the width direction of the unit plates, the plurality of unit plates being arranged along the length direction of the purlins of the metal roof, the adjacent sides of two adjacent unit plates being spliced ​​together, the two ends of the connecting strips being respectively overlapped on the adjacent sides of two adjacent unit plates, and the plurality of connecting strips being arranged along the length direction of the joint between the adjacent sides of two adjacent unit plates; The hanging member arranged below the purlin is connected to the upper part of the plurality of unit plates of the inverted bottom plate unit, and the opposite sides of the hanging member are turned up to form flange plates, and the two flange plates are respectively and detachably installed on the opposite sides of the purlin.

2. The metal roof inverted bottom plate connection structure according to claim 1, characterized in that: The hanging parts are arranged along the width direction of the unit plate.

3. The metal roof inverted bottom plate connection structure according to claim 2, characterized in that: The hanging parts and the connecting strips are arranged alternately.

4. The metal roof inverted bottom plate connection structure according to claim 1, characterized in that: The unit plate is a corrugated steel plate.

5. The metal roof inverted bottom plate connection structure according to claim 1, characterized in that: The flange plate is connected to the side of the purlin through a locking piece.

6. A construction method for the metal roof inverted bottom plate connection structure as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: Divide the roof bottom plate into a plurality of inverted bottom plate units; Assembling the plurality of inverted base plate units on the ground; Based on the position of the purlins of the metal roof, a hanging piece is installed on the inverted hanging base plate unit; The plurality of inverted bottom plate units are hoisted respectively, and the two flange plates of the hanging member are installed on the opposite sides of the purlin respectively.

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