Supporting system for special-shaped roof and construction method of special-shaped roof

Abstract

The invention provides a supporting system for a special-shaped roof and a construction method of the special-shaped roof. The supporting system comprises a special-shaped keel frame, a steel truss roof and a plurality of crotch supporting components of non-standard specifications. A plurality of crotch supporting parts with non-standard specifications are arranged between the steel truss roof and the special-shaped keel frame; one end of each crotch supporting component is fixedly connected with a support bracket of the steel truss roof, and the other end of each crotch supporting component extends to be fixedly connected with an outer roof keel of the special-shaped keel frame. According to the supporting system, the indoor space is guaranteed through the steel truss roof structure, the crotch supporting components are adaptively selected to fill the space between the steel truss roof and the special-shaped keel frame, and special-shaped modeling supporting is achieved; the crotch supporting component is reasonable in span, the two ends of the crotch supporting component are fixedly connected with the steel truss roof and the special-shaped keel frame respectively, the crotch supporting component and the steel truss roof cooperatively construct a stable supporting system, the requirements for space utilization, roof integrity and economy are synchronously met, and it is guaranteed that the special-shaped roof forming effect is accurately matched with design.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a support system for a special-shaped roof and a construction method of a special-shaped roof. BACKGROUND

[0002] At present, steel net rack and steel truss roof are widely used in workshops, factory buildings and other buildings with high space span requirements, but the roof is usually simple. For theaters, exhibition halls and other cultural and landmark buildings, the design often considers designing special-shaped outer facade and roof shape to meet the artistic effect requirements of the owner on the basis of meeting the internal space requirements.

[0003] At present, the following problems exist in the process of constructing special-shaped roof modeling based on the existing support system in the project construction:

[0004] Part of the project has a single skeleton structure, which can only adapt to simple roof modeling and cannot meet the unique modeling requirements of the owner and the designer.

[0005] Part of the project directly constructs a steel structure skeleton on the main structure and then constructs the roof, which is not conducive to the utilization of the internal space.

[0006] The span between the roof steel structure furring supports of part of the project is large, and the integrity is insufficient. In order to meet the stress, the pipe diameter and wall thickness of the furring are increased, which consumes more materials and increases the cost. In addition, there is no factory prefabrication, and a large number of rod members are welded on site, which is not conducive to the construction precision and construction period control.

[0007] In summary, when facing the special-shaped roof construction project, how to meet the requirements of the use of the building internal space, the roof integrity and the economy at the same time, and realize that the roof shape after construction is consistent with the design effect, has become a technical problem that the technical personnel in the field urgently need to solve. SUMMARY

[0008] The purpose of the present application is to provide a support system for a special-shaped roof and a construction method of a special-shaped roof, so as to solve the problem that when the existing support system is used to construct a special-shaped roof project, it cannot meet the requirements of the use of the building internal space, the roof integrity and the economy at the same time, and realize that the roof shape after construction is consistent with the design effect.

[0009] To solve the above technical problems, the application provides a support system for a special-shaped roof, which comprises a special-shaped roof skeleton, a steel truss roof, a plurality of support bracket sets arranged on the plurality of roof main trusses, a plurality of non-standard specification branch support components, and a plurality of inner roof skeleton frames.

[0010] Optionally, in the support system for the special-shaped roof, the inner roof skeleton frame comprises a plurality of inner roof skeletons, and each inner roof skeleton is fixedly connected with a support bracket at a corresponding position of the steel truss roof.

[0011] Optionally, in the support system for the special-shaped roof, each branch support component comprises at least a branch support main column. Optionally, in the support system for the special-shaped roof, part of the branch support components further comprise at least one branch support sub-column connected with the branch support main column.

[0012] Optionally, in the support system for the special-shaped roof, the special-shaped roof skeleton further comprises a plurality of node plates, each of which connects a plurality of outer roof skeletons into one and is fixedly connected with a branch support component.

[0013] Optionally, in the support system for the special-shaped roof, a plurality of stiffened plates are arranged between each node plate and the branch support component connected therewith.

[0014] The application further provides a construction method of a special-shaped roof, which comprises the following steps: constructing and installing the support system as described above; installing outer roof skeletons above the support system to meet the modeling requirements of the special-shaped roof; and constructing and installing outer roof panels on the outer roof skeletons to form the special-shaped roof.

[0015] Optionally, in the construction method of the special-shaped roof, the process of constructing and installing the support system comprises the following steps: constructing and installing a steel truss roof cover designed according to the space use requirements in the building; and selectively installing all non-standard specification branch support components on the support brackets at different positions of the steel truss roof cover according to the modeling characteristics of the special-shaped roof, and installing the other ends of the branch support components on the outer roof joists at the corresponding positions in the special-shaped roof.

[0016] Optionally, in the construction method of the special-shaped roof, the process of constructing and installing the support system further comprises the following steps after the construction and installation of the steel truss roof cover and before the construction of the outer roof joists: fixing and installing all the inner roof joists on the outer side of the steel truss roof cover to form the framework of the inner roof.

[0017] Optionally, in the construction method of the special-shaped roof, the process of constructing and installing the support system further comprises the following steps after the construction and installation of the steel truss roof cover and before the construction of the outer roof joists: fixing and installing all the inner roof joists on the outer side of the steel truss roof cover to form the framework of the inner roof.

[0018] In the support system for the special-shaped roof and the construction method of the special-shaped roof provided by the present application, the support system comprises a special-shaped joist framework, a steel truss roof cover and a plurality of non-standard specification branch support components, the steel truss roof cover comprises a plurality of roof main trusses, a plurality of roof ring trusses and a plurality of support bracket groups arranged on the plurality of roof main trusses; each support bracket group comprises a plurality of support brackets, and all the support brackets in the same support bracket group are fixedly connected with the top chord of the same roof main truss; the plurality of non-standard specification branch support components are arranged between the steel truss roof cover and the special-shaped joist framework; one end of each branch support component is fixedly connected with a support bracket of the steel truss roof cover, and the other end of each branch support component is fixedly connected with an outer roof joist of the special-shaped joist framework. The support system of the present application guarantees the indoor space through the steel truss roof cover structure, adaptively selects the branch support components to fill the space between the steel truss roof cover and the special-shaped joist framework and realize the support of the special-shaped modeling; the span of the branch support components is reasonable, and the two ends of each branch support component are fixedly connected with the steel truss roof cover and the special-shaped joist framework respectively, thereby cooperatively constructing a stable support system with the steel truss roof cover, synchronously meeting the requirements of space utilization, roof integrity and economy, and ensuring that the special-shaped roof forming effect and the design are accurately matched. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the several views.

[0020] Figure 1 is a schematic view of a support system for a special-shaped roof in an embodiment of the present application;

[0021] Figure 2 yes Figure 1 A partial schematic diagram of the truss roof of China Steel Group;

[0022] Figure 3 yes Figure 1 A magnified view of part A1 (showing the connection between the tree branch support component and the bracket);

[0023] Figure 4 yes Figure 1 A magnified view of part of A2 (showing the connection between the tree branch support component and the outer roof joists);

[0024] Figure 5 yes Figure 1 A magnified view of part B (focusing on the outer roof joists);

[0025] Figure 6 This is a schematic diagram of a steel truss roof according to one embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the main roof truss in one embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the connection position between the support bracket and the inner roof keel in one embodiment of the present invention;

[0028] Figure 9 yes Figure 8 Cross-sectional view along direction 1-1;

[0029] Figure 10 This is a schematic diagram showing the connection position between the main branch column of the tree branch support and the support bracket of the steel truss roof in one embodiment of the present invention;

[0030] Figure 11 This is a schematic diagram showing the connection position between the main branch support column and the branch support column in one embodiment of the present invention;

[0031] Figure 12 yes Figure 11 A cross-sectional view along direction 2-2;

[0032] Figure 13 This is a schematic diagram of the connection position between the branch support column and the node disk in one embodiment of the present invention;

[0033] Figure 14 yes Figure 13 A cross-sectional view along the 3-3 direction;

[0034] Figure 15 It is a 3D schematic diagram of irregular roof and interior roof.

[0035] In the picture:

[0036] 1. Main roof truss; 2. Roof ring truss; 3. Top chord of roof truss; 4. Support bracket; 5. Inner roof joists; 6. Branch support main branch column; 7. Branch support branch column; 8. Stiffening plate; 9. Node plate; 10. Outer roof joists; 11. Inner roof panels; 12. Outer roof panels; 13. Insulation board. Detailed Implementation

[0037] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a support system for irregularly shaped roofs and a construction method for such roofs, as proposed in this invention. The advantages and features of this invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this invention.

[0038] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0039] In the description of the invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention 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. Therefore, they should not be construed as limitations on the invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 invention according to the specific circumstances.

[0042] Please refer to Figures 1 to 14The support system for the irregular roof includes: an irregular keel frame and several non-standard tree branch support components. The irregular keel frame includes: several interconnected outer roof keels 10; a steel truss roof, including multiple roof main trusses 1, multiple roof ring trusses 2 connected to the roof main trusses 1, and multiple support bracket groups set on the multiple roof main trusses 1; wherein, each support bracket group includes several support brackets 4, and all support brackets 4 in the same support bracket group are fixedly connected to the upper chord of the same roof main truss 1; several non-standard tree branch support components are set between the steel truss roof and the irregular keel frame; one end of each tree branch support component is fixedly connected to one support bracket 4 of the steel truss roof, and the other end extends to be fixedly connected to one outer roof keel 10 of the irregular keel frame.

[0043] Based on the main truss structure and the roof ring truss 2 cross welding to form a stable steel truss roof, the final steel truss roof can be tilted or horizontal, and can be flexibly arranged according to different building space usage needs. The main branch columns and branch columns supported by the tree branches on the steel truss roof provide support for complex roof shapes. The spatial structure of the tree branch support components can be flexibly adjusted according to the roof shape to meet diverse design needs.

[0044] Furthermore, the main roof truss 1 and the roof ring truss 2 of the steel truss roof can be custom-made in advance at the steel truss component factory according to design requirements. Support brackets 4 are pre-welded to the upper chord of the main roof truss 1 to serve as the connection medium for the subsequent tree branch support main column 6 and the inner roof joists 5. This effectively reduces a large amount of on-site welding work, saves construction time, and improves construction efficiency. Non-standard tree branch support components can be flexibly adjusted in spatial distribution, and their ends can extend according to the external roof shape to form various rich external roof designs. Moreover, while meeting the stress requirements of the external roof, economical and reasonable materials and pipe diameters and wall thicknesses are selected. After connecting with the steel truss roof and the outer roof joists 10, a support system is formed with good overall integrity.

[0045] In summary, the support system of this invention safeguards the indoor space through a steel truss roof structure. Adaptably, tree-branch support components are selected to fill the space between the steel truss roof and the irregularly shaped keel frame, achieving support for the irregular shape. The tree-branch support components have a reasonable span, with both ends fixed to the steel truss roof and the irregularly shaped keel frame respectively. Together with the steel truss roof, they construct a stable support system, simultaneously meeting the requirements of space utilization, roof integrity, and economy, ensuring that the formed effect of the irregular roof precisely matches the design. Further details can be found in the following references. Figures 8 to 10The support system for irregularly shaped roofs further includes an inner roof keel frame located on the outer side of the steel truss roof. The inner roof keel frame comprises several inner roof keels 5, each of which is fixedly connected to a corresponding support bracket 4 within the steel truss roof. It is understood that the location, quantity, and specifications of the support brackets 4 require specific design and planning based on the actual stress requirements of the building structure. Given that this part pertains to conventional architectural techniques (such as mature methods for calculating the stress on brackets and their arrangement), it will not be repeated here.

[0046] In this embodiment, please refer to Figure 1 and Figure 5 Each branch support component includes at least one branch support main branch column 6. That is, among several non-standard branch support components, not all specifications are the same. There are some that are the same and some that are different. The specific specifications are determined according to the spacing and support force requirements between the steel truss roof and the irregular keel frame.

[0047] Optional, please refer to Figures 11 to 14 The branch support components also include at least one branch support column 7 connected to the main branch support column 6. The branch support components can take root at multiple points above the steel truss roof, offering advantages in terms of both the number of roots and stress compared to other structures without a roof that are directly rooted on the perimeter columns. This allows for optimized and reduced material usage in the column cross-sections. Furthermore, the branch support components can be pre-welded, minimizing the amount of welding required. Please refer to [reference needed]. Figure 4 , Figure 5 , Figures 11 to 14 The irregular keel frame also includes: several node plates 9, each node plate connecting multiple outer roof keels 10 into a whole, and fixedly connected to a tree branch support component. Specifically, if the distance between the steel truss roof and the irregular keel frame is too large, the tree branch support component needs to be equipped with tree branch support columns 7, based on the fixed connection between the tree branch support columns 7 and the node plates 9 (e.g. Figure 4 (as shown); If the distance between the steel truss roof and the irregular keel frame is small, the tree branch support component does not need to be equipped with tree branch support columns 7, and the tree branch support main column 6 of the tree branch support component is fixedly connected to the node plate 9 (as shown). Figure 5 (As shown).

[0048] The current irregular-shaped keel frame connects multiple outer roof keels 10 into one unit based on node plates. This allows the irregular-shaped roof of the present invention to adopt a unit division with triangles as the main component and quadrilaterals as the auxiliary component, which can better fit the shape details of single-curved and double-curved roofs. The outer roof keels 10 are connected by node plates 9, and are temporarily fixed with studs during installation. After measurement and shaping, they are welded and fixed, allowing for a certain adjustment margin during construction. Please continue to refer to Figure 4 and Figure 13In order to enhance the strength of the connection node and effectively improve the stability of the structure and assist in the transmission of force, the support system for irregular roofs is provided with multiple stiffening plates 8 between each node plate 9 and the tree branch support component it is connected to.

[0049] The specific functions of the stiffener are as follows:

[0050] Enhanced connection strength: Disperses stress concentration at nodes, improves the collaborative stress-bearing capacity of the node plate and branch support components, and prevents localized damage or loosening; Improved structural stability: Suppresses structural deformation in the connection area, optimizes stress distribution, and enhances overall deformation resistance; Optimized force transmission: Rationally distributes and guides the force of the branch support components to the node plate and main structure, ensuring smooth force transmission. Optional, please refer to... Figure 1 , Figure 2 , Figure 6 and Figure 7 Each roof main truss 1 and each roof ring truss 2 includes: an upper chord, a lower chord parallel to the upper chord, and web members located between them. It is understood that although the roof main truss 1 and the roof ring truss 2 both include the same structure, their structural forms and distribution layouts differ. For example, the upper chord 3 of the roof main truss 1 can be designed as a straight line, longitudinally distributed, according to the requirements of the support system; the upper chord of the roof ring truss 2 can be designed as a ring, circumferentially distributed, according to the requirements of the support system. Preferably, the upper and lower chords of the roof main truss 1 and the roof ring truss 2 are connected by intersecting bevel welds, and the top of the roof main truss 1 is connected to the roof ring truss 2 by ball joints. Correspondingly, this embodiment also provides a construction method for irregularly shaped roofs. See below for reference. Figures 1 to 15 This embodiment details the construction method for irregularly shaped roofs.

[0051] First, perform step S1 to construct and install the support system as described above;

[0052] Specifically, step S1 includes the following steps:

[0053] S11, Construction and installation of the steel truss roof, which is designed according to the usage requirements of the building's interior space; thus, it can be seen that the steel truss roof is designed according to the usage requirements of the building's interior space, so that the final constructed building meets the usage requirements of the interior space.

[0054] In the steel truss component factory, the main roof truss 1 and the roof ring truss 2 of the steel truss roof can be customized according to design requirements. Furthermore, the upper chord of the main roof truss 1 is pre-welded with support brackets 4 to serve as the connection medium for the subsequent branch support main column 6 and the inner roof joists 5. This effectively reduces a significant amount of on-site welding work, saves construction time, and improves construction efficiency.

[0055] S12, all non-standard tree branch support components 6 are selectively installed on the support brackets 4 at different positions in the steel truss roof according to the shape characteristics of the irregular roof. This ensures that each inner roof joist 5 is fixedly connected to the corresponding support bracket 4 in the steel truss roof. The other end of each tree branch support component 6 is installed on the corresponding outer roof joist 10 in the irregular roof. In other words, both ends of the tree branch support component 6 are fixedly connected to the support bracket 4 and the outer roof joist 10 on the steel truss roof, respectively. The tree branch support component 6 supports the outer roof joist 10 while transferring structural loads, thus maintaining the stability of the outer roof shape and improving the overall structural load-bearing capacity.

[0056] Next, step S2 is performed to install the outer roof keel 10 above the support system to meet the shape requirements of the irregular roof.

[0057] Next, step S3 is performed to install the outer roof panels 12 on the outer roof joists 10 to form an irregular roof. Preferably, during the construction and installation of the support system, after the construction and installation of the steel truss roof and before the construction of the outer roof joists, the following step is also included: fixing all the inner roof joists 5 to the outside of the steel truss roof to form the framework of the inner roof. Please refer to... Figure 15 Furthermore, the inner roof panels and insulation boards need to be installed on the inner roof keel 5 to form the inner roof and the inner roof insulation layer. Specifically, in the final stage, the outer roof panels 12, inner roof panels 11, and insulation boards 13 are installed from the outside in.

[0058] Specifically, the inner roof panel 11 is fixed to the inner roof keel 5 using self-tapping screws and integrated corner brackets; the insulation board 13 is fixed to the inner roof keel 5 using integrated metal wire and aluminum foil. Since the outer roof panels are joined together with waterproof adhesive, a reliable waterproof barrier is formed at the gaps between the panels. However, due to prolonged exposure to wind and sun, the adhesive at these gaps will age, leading to leakage. Based on this problem, installing the inner roof on the steel truss roof can effectively achieve secondary waterproofing beyond the initial waterproofing of the irregular roof. Because the inner roof is protected by the irregular roof on its outer side, it has better durability, effectively achieving a secondary waterproofing effect. Once leakage occurs in the outer roof (i.e., the irregular roof), the presence of the inner roof can reduce the impact of the leakage on normal use, provide a platform for roof maintenance, and also provide an insulation surface for the building roof, which is beneficial for energy conservation and environmental protection. It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0059] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0060] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A support system for irregularly shaped roofs, characterized in that, include: A non-standard roof frame includes: several interconnected roof keels (10); a steel truss roof, including multiple roof main trusses (1), multiple roof ring trusses (2) connected to the roof main trusses (1), and multiple support bracket groups set on the multiple roof main trusses (1); wherein each support bracket group includes several support brackets (4), and all support brackets (4) in the same support bracket group are fixedly connected to the upper chord of the same roof main truss (1); Several non-standard tree branch support components are installed between the steel truss roof and the irregular keel frame; one end of each tree branch support component is fixedly connected to a bracket (4) of the steel truss roof, and the other end extends to be fixedly connected to an outer roof keel (10) of the irregular keel frame.

2. The support system for irregularly shaped roofs as described in claim 1, characterized in that, Also includes: An inner roof keel frame is set on the outside of the steel truss roof. The inner roof keel frame includes several inner roof keels (5), and each inner roof keel (5) is fixedly connected to the corresponding support bracket (4) in the steel truss roof.

3. The support system for irregularly shaped roofs as described in claim 1, characterized in that, Each branch support component includes at least one branch support main branch post (6).

4. The support system for irregularly shaped roofs as described in claim 3, characterized in that, Some branch support components also include: at least one branch support post (7) connected to the main branch support post (6).

5. The support system for irregularly shaped roofs as described in claim 1, characterized in that, The irregular keel frame also includes: several node plates (9), each node plate connecting multiple outer roof keels (10) into one piece, and fixedly connected to a tree branch support component.

6. The support system for irregularly shaped roofs as described in claim 5, characterized in that, Also includes: Several stiffening plates (8) are provided between each node disk (9) and the branch support component to which it is connected.

7. A construction method for irregularly shaped roofs, characterized in that, include: Construction and installation of the support system as described in any one of claims 1 to 6; An external roof keel (10) is installed above the support system to meet the shape requirements of the irregular roof. The outer roof panels (12) are installed on the outer roof keel (10) to form an irregular roof.

8. The construction method for irregularly shaped roofs as described in claim 7, characterized in that, The process of constructing and installing the support system includes the following steps: The steel truss roof is constructed and installed according to the building's interior space usage requirements; All non-standard tree branch support components (6) are selectively installed on the support brackets (4) at different positions in the steel truss roof according to the shape characteristics of the irregular roof. The other end of each tree branch support component (6) is installed on the outer roof keel (10) at the corresponding position in the irregular roof.

9. The construction method for irregularly shaped roofs as described in claim 8, characterized in that, During the construction and installation of the support system, after the construction and installation of the steel truss roof and before the construction of the external roof joists, the following steps are also included: All the inner roof joists (5) are fixedly installed on the outside of the steel truss roof to form the framework of the inner roof.

10. The construction method for irregularly shaped roofs as described in claim 9, characterized in that, Also includes: Inner roof panels (11) and insulation boards (13) are installed on the inner roof joists (5) to form an inner roof and an inner roof insulation layer.

Images