An installation structure for a lightweight assembly of a cementitious sheet roof installation

Abstract

The utility model discloses a kind of installation structure of light component of cement board roof installation, including support (1), square tube (2), purlin (3) and be arrayed on the several post-buried member steel plate (5) of cement board roof (4), the post-buried member steel plate (5) is fixed on the cement board roof (4) by structural adhesive (6) bonding, each post-buried member steel plate (5) is welded with one support (1), the both ends of the square tube (2) are respectively fixedly connected with the support (1), form an installation frame, along the length direction of the square tube (2) fixed with multiple purlin (3) vertically arranged, the light component (7) is installed on the purlin (3).The utility model solves the problem that the traditional cement board roof installation counterweight block photovoltaic support form exists larger load, needs reinforcement and other poor economic problems, so that light component can have the ability of resisting larger wind suction force.

Description

Technical Field

[0001] This utility model relates to the field of building roofing technology, specifically to an installation structure for installing lightweight components on cement board roofs. Background Technology

[0002] The construction industry is a crucial aspect of realizing the national "dual-carbon" strategy. In recent years, my country's photovoltaic technology has developed rapidly, and the use of solar photovoltaic power generation technology in industrial, civil, and public buildings has become a new trend in building energy conservation. The National Energy Administration clearly proposed the comprehensive promotion of distributed photovoltaic development in the "14th Five-Year Plan for Renewable Energy Development".

[0003] Existing buildings with cement slab roofs lack provisions for pedestrian loads. If photovoltaic modules are installed later, the traditional counterweight system will be too heavy to meet the roof's load-bearing capacity requirements. Some owners opt for lightweight modules, typically using structural adhesive to fix aluminum alloy or carbon steel square tubes to the roof waterproofing membrane. However, on-site testing has yielded poor results. There are two main reasons for this: First, the waterproofing membrane has a protective plastic film layer. When structural adhesive adheres to this film, it detaches during pull-out tests. Second, while removing the plastic film before bonding may improve adhesion, sustained pull-out forces will eventually cause the waterproofing membrane to detach from the cement roof surface. Therefore, regardless of the method used, the structural stability of lightweight modules installed on asphalt waterproofing membranes cannot be guaranteed.

[0004] Adding photovoltaic systems to the concrete roofs of existing buildings requires consideration not only of the impact of the weight of the components, supports, and foundations on the existing buildings, but also of the impact of wind suction on the photovoltaic systems. Utility Model Content

[0005] To address the issues of heavy loads, the need for roof assessment and reinforcement when installing counterweight photovoltaic brackets on existing cement board roofs, poor economic efficiency, and significantly increased construction time; and the poor wind resistance of traditional lightweight component bracket installations, this utility model provides an installation structure for lightweight components on cement board roofs.

[0006] The present invention adopts the following technical solution:

[0007] An installation structure for installing lightweight components on a cement board roof is disclosed. The installation structure includes supports, square tubes, purlins, and a plurality of post-embedded steel plates arranged in an array on the cement board roof. The post-embedded steel plates are fixed to the cement board roof by structural adhesive. Each post-embedded steel plate is welded with a support. Both ends of the square tube are fixedly connected to the supports to form an installation frame. A plurality of purlins are fixed along the length of the square tube and arranged perpendicularly thereto. The lightweight components are installed on the purlins.

[0008] Furthermore, a waterproof membrane is laid on the cement board roof, and a waterproof overlapping membrane is also provided at the joint position formed by the post-embedded steel plate and the waterproof membrane, the waterproof overlapping membrane completely covering the joint area formed by the waterproof membrane and the post-embedded steel plate.

[0009] Preferably, the square tube is a galvanized square tube, which is fixed to the support by stainless steel self-tapping screws.

[0010] Preferably, the purlin is a Z-shaped purlin, which is fixed to the square tube by stainless steel self-tapping screws.

[0011] Preferably, the lightweight component is bonded to the zigzag purlin using structural adhesive.

[0012] This utility model has the following advantages compared to the prior art:

[0013] This invention involves arranging several post-embedded steel plates in an array on a cement board roof according to the location of lightweight components. These post-embedded steel plates can be fixed to the cement board roof by adhesive bonding without damaging the original roof structure, enabling non-destructive installation. At the same time, the self-weight of the lightweight components, square tubes, and supports used is much smaller than that of traditional counterweight block schemes, greatly reducing the amount of house reinforcement work. In most cases, reinforcement is not required. Furthermore, the wind uplift resistance and roof drainage capacity are superior to traditional lightweight component installation schemes, and the construction is simple and the construction period is greatly shortened. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model, the drawings used in the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a layout diagram of the lightweight component roof provided by this utility model;

[0016] Figure 2 yes Figure 1 The diagram shows the AA section.

[0017] Figure 3 yes Figure 2 Enlarged view of part I in the image;

[0018] Figure 4 yes Figure 2 Enlarged view of Part II;

[0019] Figure 5 yes Figure 1 The diagram shows a cross-section of BB.

[0020] Figure 6 yes Figure 5 Enlarged view of Part III;

[0021] Figure 7 yes Figure 5 Enlarged view of part IV in the image.

[0022] The diagram is labeled as follows:

[0023] 1-Support; 2-Square tube; 3-Purifier; 4-Cement board roof; 5-Post-installed embedded steel plate; 6-Structural adhesive; 7-Lightweight component; 8-Waterproof membrane; 9-Waterproof overlapping membrane; 10-Self-tapping screw. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 7 As shown, this utility model provides an installation structure for lightweight components installed on a cement board roof, including a support 1, a square tube 2, a purlin 3, and several post-embedded steel plates 5 arranged in an array on the cement board roof 4. The post-embedded steel plates 5 are bonded and fixed to the cement board roof 4 with structural adhesive 6. Therefore, the original structure of the cement board roof 4 does not need to be damaged. A support 1 is welded on each post-embedded steel plate 5. Here, a Z-shaped support 1 is preferred. The post-embedded steel plates 5 are square structures. Each support 1 is welded to the middle position of the corresponding post-embedded steel plate 5. All supports 1 form a matrix structure on the cement board roof 4. Meanwhile, the present invention also fixes the two ends of the long square tube 2 to two supports 1 respectively to form a square or rectangular installation frame. Multiple purlins 3 are fixed along the length of the square tube 2 and are arranged perpendicular to it. Multiple purlins 3 are fixed at the upper end face of the square tube 2 and are arranged in parallel. Lightweight component 7 is installed on the purlins 3.

[0028] To achieve better waterproofing, when installing lightweight components on concrete, space slab, prestressed cement board roofs, etc., this utility model lays a waterproof membrane 8 on the cement board roof 4, and a waterproof overlapping membrane 9 is also provided at the joint formed by the post-embedded steel plate 5 and the waterproof membrane 8. The waterproof overlapping membrane 9 completely covers the joint area formed by the waterproof membrane 8 and the post-embedded steel plate 5, thereby preventing seepage from the overlapping joint to the cement board roof 4.

[0029] The square tube 2 used in this utility model is a galvanized square tube, which is fixed to the support 1 by stainless steel self-tapping screws 10. Of course, it is not limited to square tube 2, but can also be a rectangular tube or other flat steel profile structure.

[0030] Meanwhile, to reduce the overall load, this invention uses purlin 3 with a Z-shaped cross-section, which is fixed to the square tube 2 with stainless steel self-tapping screws. Simultaneously, the lightweight component 7 is bonded to the Z-shaped purlin using a special structural adhesive 6.

[0031] The specific installation method is as follows:

[0032] Step 1: Lay SBS waterproof membrane on the roof, according to the position of the pre-reserved post-embedded steel plate 5 for the photovoltaic array;

[0033] Step 2: Weld the Z-shaped support 1 onto the post-embedded steel plate 5. The process is to weld first and then galvanize. The post-embedded steel plate 5 is glued and fixed to the structural layer of the cement board roof using steel structural adhesive 6. According to the field test, the tensile strength of a single post-embedded steel plate 5 is not less than 2.78KN, which can meet the wind suction requirements. The waterproofing around the post-embedded steel plate 5 can be restored by overlapping waterproof membrane 9.

[0034] Step 3: Fix the galvanized square tube 2 to the Z-shaped support 1 using stainless steel self-tapping screws 10;

[0035] Step 4: After the galvanized square tube 2 is installed, the Z-shaped purlin is fixed to the galvanized square tube 2 with stainless steel self-tapping screws 10.

[0036] Step 5: The lightweight component 7 is attached to the Z-shaped purlin using photovoltaic-specific structural adhesive.

[0037] Because the lightweight components, purlins, square tubes and supports installed on the cement board roof have a much smaller self-weight than traditional counterweights, the amount of house reinforcement work is reduced, the overall structure is simple and the construction period is shorter.

[0038] Any aspects not described herein are applicable to the prior art.

[0039] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. An installation structure for lightweight components on a cement board roof, characterized in that, The installation structure includes a support (1), a square tube (2), purlins (3), and several post-embedded steel plates (5) arranged in an array on the cement board roof (4). The post-embedded steel plates (5) are bonded and fixed to the cement board roof (4) by structural adhesive (6). A support (1) is welded to each post-embedded steel plate (5). The two ends of the square tube (2) are fixedly connected to the support (1) to form an installation frame. Several purlins (3) are fixed along the length of the square tube (2) and arranged perpendicular to it. The lightweight component (7) is installed on the purlins (3).

2. The installation structure for installing lightweight components on a cement board roof according to claim 1, characterized in that, A waterproof membrane (8) is laid on the cement board roof (4), and a waterproof overlapping membrane (9) is also provided at the joint position formed by the rear embedded steel plate (5) and the waterproof membrane (8). The waterproof overlapping membrane (9) completely covers the joint area formed by the waterproof membrane (8) and the rear embedded steel plate (5).

3. The installation structure for installing lightweight components on a cement board roof according to claim 1, characterized in that, The square tube (2) is a galvanized square tube, which is fixed to the support (1) by stainless steel self-tapping screws (10).

4. The installation structure for installing lightweight components on a cement board roof according to claim 1, characterized in that, The purlin (3) is a Z-shaped purlin, which is fixed to the square tube (2) by stainless steel self-tapping screws (10).

5. The installation structure for installing lightweight components on a cement board roof according to claim 4, characterized in that, The lightweight component (7) is bonded to the zigzag purlin by structural adhesive (6).

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