A self-contained roof node construction

Abstract

The utility model discloses an independent roof node structure, relates to building roof technical field, solves the rigid linkage of support structure and roof panel system in traditional roof node, and the problem that easily leads to structure deformation, waterproof failure because of roof panel thermal expansion and cold shrink. The structure includes two integrals without direct connection: the first integral is constituted by stand column batten, horizontal batten, longitudinal batten, roof board, fixed screw and steel structure, and plays the role of bearing support and waterproofing; the second integral is constituted by roof flashing board, roof ridge seat strip, flashing support, roof ridge plug head clamp and plug head, roof panel and roof purlin, and the roof panel is connected with the roof purlin through the fixed seat and can freely stretch out and draw back. The roof board covers the waterproof component of the second integral, and combines multiple edge folding to prevent seepage. It can avoid the expansion interference of roof panel to support structure, prevent deformation damage, reduce the risk of leakage, and is convenient for separate maintenance, and is suitable for various industrial and civil building roofs.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to an independently operating roof node structure suitable for various industrial and civil building roofs, especially suitable for roof systems that need to cope with the expansion and contraction of roof panels caused by temperature changes. It can realize the independent operation of the roof support structure and the roof panel system, ensuring the stability and waterproof performance of the roof structure. Background Technology

[0002] Roof joints are the core connection points of the roof structure, and their structural design directly determines the long-term stability and waterproofing reliability of the roof. The core defect of traditional roof joints lies in the rigid binding design of the supporting structure and the roof panel system: that is, the roof's supporting keel (columns, horizontal and vertical keels) and the roof panels, flashing and other covering components are directly connected by welding or rigid bolts to form an integrated structure that cannot be moved relative to each other.

[0003] From a structural perspective, this design contains a fundamental contradiction: the roof panel, as the roof covering layer, will inevitably undergo expansion and contraction along its length (expansion at high temperatures, contraction at low temperatures) due to changes in ambient temperature; while the supporting joists, as the load-bearing structure, must remain rigid and stable to transfer roof loads (self-weight, snow load, wind load). When the two are rigidly bound together, the expansion and contraction forces of the roof panel will be directly transmitted to the supporting joists, causing unexpected bending or misalignment of the joists—long-term accumulation will lead to fatigue damage between the joists and the steel structure base, weakening the overall load-bearing capacity of the roof; at the same time, expansion and contraction deformation will damage the connection and sealing of sealing components at joints (such as flashing and end caps), causing rainwater to seep into the roof and causing leakage problems. In addition, rigid binding also leads to maintenance difficulties: when inspecting the supporting structure or roof panel, the entire integrated structure must be disassembled, significantly increasing maintenance costs and construction time.

[0004] To address the aforementioned fundamental deficiencies, it is urgent to optimize the structural composition and assembly relationship of the nodes, and design a roof node structure that can achieve "force isolation and functional synergy" between the supporting structure and the roof panel system, thereby fundamentally solving the structural and waterproofing problems caused by temperature deformation. Utility Model Content

[0005] This utility model aims to overcome the fundamental flaw of the traditional roof node's "rigid binding of support and cover" by addressing the problem through the following structural design objectives:

[0006] Achieve force isolation between the supporting structure and the roof panel system: prevent the expansion and contraction forces of the roof panels from being transmitted to the supporting joists, and ensure the rigidity and stability of the supporting structure;

[0007] Ensure the functional synergy of the "support-coverage" dual system: On the basis of force isolation, ensure that the waterproof function of the roof panel system does not fail, and that the coverage area can adapt to the expansion and contraction of the roof panel;

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0009] A self-contained roof node structure includes column joists, horizontal joists, longitudinal joists, roof slabs, fixing screws, roof flashing, ridge strips, flashing supports, ridge end clips and end clips, and roof panels.

[0010] The column keel is installed on the steel structure, the horizontal keel is installed on the column keel, the longitudinal keel is installed on the horizontal keel, the roof plate is laid on the upper part of the longitudinal keel and the horizontal keel and covers the outer side of the longitudinal keel (3), and is fixed by fixing screws; the column keel, the horizontal keel, the longitudinal keel, the roof plate, the fixing screws and the steel structure together form the first whole;

[0011] The roof panel is connected to the roof purlins via a fixing bracket and can freely extend and retract along the fixing bracket; the ridge end clamp and end are connected to the ridge support strip via rivets, the ridge support strip is connected to the roof panel via rivets, the flashing support is connected to the roof panel via rivets, and the roof flashing is connected to the ridge support strip and the flashing support via rivets respectively; the roof flashing, ridge support strip, flashing support, ridge end clamp and end, and roof panel together form a second whole;

[0012] The first integral part and the second integral part are not directly connected, and the roof is based on the first integral part to achieve independent operation.

[0013] Furthermore, the first and second components operate independently and do not interfere with each other; when the roof panel expands or contracts due to thermal expansion and contraction, it drives the second component to move synchronously, and this movement does not affect the first component.

[0014] Furthermore, the roof panel is provided with a folded edge structure along the roof drainage direction; the folded edge structure includes at least a water-drip folded edge for dripping water, a fixing folded edge for cooperating with fixing screws, and a drainage folded edge for guiding drainage.

[0015] Furthermore, the fixing screws pass through the fixing flange of the roof panel to fix the roof panel to the longitudinal keel.

[0016] Furthermore, the roof flashing has an upward folded edge and a downward folded edge; the upward folded edge is used to prevent rainwater from flowing back in, and the downward folded edge is used to guide rainwater out.

[0017] Furthermore, the roof panel can completely cover the roof flashing, as well as the ridge strip, flashing support, ridge end clamp and end cap below the roof flashing; and the roof panel has a reserved excess coverage length to accommodate the positional changes of the second integral after the roof panel expands or contracts.

[0018] Furthermore, the roof panel is folded upwards at the position corresponding to the ridge to form a water-blocking structure to improve the waterproof performance at the ridge.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] Significantly improved stability: Through the double integral design without direct connection, the expansion and contraction forces of the roof panels are fundamentally isolated, and the supporting keel does not need to bear unexpected deformation forces, avoiding bending, misalignment and fatigue damage to the steel structure, and extending the service life of the roof structure.

[0021] Superior waterproofing reliability: The roof panel's folded edge water-guiding principle, the flashing's bi-directional folded edge anti-backflow principle, and the roof panel's ridge water-blocking principle form multiple waterproofing lines; and the extra coverage length design ensures that there are no waterproofing blind spots after the second unit is moved, greatly reducing the risk of leakage.

[0022] Improved ease of maintenance: The dual integral independent structure allows for separate inspection of the supporting structure or roof panel system during maintenance, without the need to disassemble the other integral part, reducing maintenance workload and costs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the roof panel of this utility model;

[0025] Figure 2 This is a schematic diagram of the roof structure of this utility model that operates independently;

[0026] Figure 3 This is a schematic diagram of the structure of the flashing plate of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the roof of this utility model without an independently working roof cover;

[0028] Figure 5 A schematic diagram of the structure of the roof installation of an independently functioning roof cover according to this utility model;

[0029] Figure 6 This is a schematic diagram of the roof panel of this utility model after thermal expansion;

[0030] Figure 7 This is a schematic diagram of the roof panel of this utility model after the effect of cold shrinkage. Detailed Implementation

[0031] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", 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 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. Therefore, they should not be construed as limitations on this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] like Figure 1-7 As shown, this utility model constructs the following technical solution through the design concept of "dual integral disassembly + structural synergy," the core of which lies in clarifying the structural composition, assembly principle, and independent working mechanism of each integral part:

[0036] 1. Principles of Overall Structural Construction

[0037] The roof node structure is divided into two independent units through "functional decomposition" with no directly connected components. The specific composition is as follows:

[0038] The first integral part (supporting structure) consists of column keel 1, horizontal keel 2, longitudinal keel 3, roof plate 4, fixing screws 5, and steel structure 11. Its core function is to bear the roof load and transfer it to the building foundation. Its structural design principle is "rigid hierarchical connection" - the keels and roof plate are fastened together by fixing screws and bolts to ensure that the load can be stably transferred along the path of "column keel → horizontal keel → longitudinal keel → roof plate" without relative displacement.

[0039] The second system (roof panel system) consists of roof flashing 6, ridge support strip 7, flashing brace 8, ridge end clamp and end 9, roof panel 10, and roof purlin 12. Its core function is to cover the roof and achieve waterproofing. Its structural design principle is "expandable and coordinated connection" - the roof panel and roof purlin are connected by sliding fixing seats, and the other components (flashing, ridge support strip, etc.) are fastened to the roof panel by rivets, forming a whole that can expand and contract synchronously with the roof panel, ensuring that the waterproof coordination of each component is not damaged during expansion and contraction.

[0040] 2. Structural principles and assembly of the first integral (supporting structure)

[0041] Core structural design principles:

[0042] Keel hierarchical structure: The three-level keel design of "column-horizontal-longitudinal" is adopted. The column keel 1 bears the vertical load, the horizontal keel 2 distributes the load horizontally, and the longitudinal keel 3 transmits the load vertically. The three-level structure forms a grid-like support system to ensure that the load is ultimately transferred to the steel structure 11 and the main steel structure bears the force.

[0043] The roof panel 4 features a folded edge design: three integrated folded edges (drip edge 14, fixed edge 15, and drainage edge 16) are installed along the roof drainage direction. The drip edge 14 bends outward to prevent rainwater from flowing back into the joint along the edge of the roof panel. The fixed edge 15 extends vertically to provide a stable installation reference for the fixing screws 5, ensuring a rigid connection between the roof panel and the longitudinal keel. The drainage edge 16 is arranged along the length of the transverse keel 2, which has an inclined angle to guide the roof water to drain in a preset direction, preventing water from seeping into the supporting structure.

[0044] Assembly principle:

[0045] The column keel 1 is rigidly connected to the steel structure 11 (bolts or welding) to ensure the stability of the support starting point;

[0046] The horizontal keel 2 is fixed horizontally to the top of the column keel 1, and the longitudinal keel 3 is fixed parallel to the drainage direction on the horizontal keel 2 to form a grid support surface;

[0047] The roof slab 4 is laid at the joint of the keel. The roof slab is fastened to the longitudinal keel 3 by the fixing screws 5 penetrating the fixing fold 15, so that the roof slab becomes part of the supporting structure, and together they bear and guide water.

[0048] 3. Structural principles and assembly of the second integrated system (roofing panel system)

[0049] Core structural design principles:

[0050] Sliding adaptation design of roof panel 10: Roof panel 10 is connected to roof purlin 12 via a fixing seat and can freely extend and retract. For example, the roof panel and roof purlin 12 are connected by a sliding fit of "fixing seat - trough" (fixing seat is fixed to the roof purlin, and the trough of the roof panel is fastened to the fixing seat). This structure allows the roof panel to freely extend and retract along the length of the fixing seat, avoiding the transmission of extension and retraction force to structures other than the roof purlin.

[0051] Waterproof and sealing collaborative design: The roof flashing 6 has a two-way folded edge (upward folded edge and downward folded edge). The upward folded edge prevents rainwater from flowing back into the ridge gap, while the downward folded edge guides rainwater into the drainage channel of the roof panel. The ridge support strip 7 and the flashing support 8 serve as the upper and lower support points of the flashing, respectively. They are fastened to the roof panel with rivets to ensure that the flashing can still maintain a sealed fit with the roof panel when it moves synchronously with the roof panel. The roof panel 10 is folded upward at the ridge 13 to form a water barrier, further blocking the water seepage path at the ridge.

[0052] Assembly principle:

[0053] Roof purlins 12 are arranged parallel to the longitudinal keel, and sliding mounting brackets are fixed on them;

[0054] After the roof panel 10 is fastened to the fixing seat and it is confirmed that it can be freely extended and retracted, the ridge support strip 7 and the flashing support 8 are fixed to the roof panel with rivets.

[0055] The roof flashing 6 connects the ridge support strip and the flashing brace with rivets to form a waterproof seal on the ridge.

[0056] The ridge end clamp and end cap 9 are fixed to the end of the ridge to seal the opening and prevent rainwater and dust from entering.

[0057] 4. The core principle of dual-system independent operation

[0058] The independent operation of the two systems relies on a structural design of "no direct connection + overlay collaboration":

[0059] Force isolation principle: The first and second integrals have no shared connecting parts (such as no bolts passing through the two integrals). When the roof panel 10 expands and contracts, it only drives the second integral to slide along the fixed seat. The expansion and contraction force is confined inside the second integral and cannot be transmitted to the first integral, ensuring that the supporting structure is not disturbed.

[0060] Coverage synergy principle: The coverage area of ​​the roof panel 4 completely includes the key waterproof components of the second whole (roof flashing 6, ridge support strip 7, etc.), and a "surplus coverage length" is reserved along the expansion and contraction direction of the roof panel - this length is designed according to the expansion and contraction of the roof panel to ensure that when the roof panel moves the second whole, the roof panel always covers the waterproof components and there are no exposed areas, thus ensuring the continuous effectiveness of the waterproof function on the basis of independent operation.

[0061] This utility model sets the "first supporting structure consisting of the column keel 1 and steel structure 11" and the "second supporting structure consisting of the roof panel 10 and roof purlin 12" as having no direct connection structure. The roof panel 10 can freely expand and contract along the fixed seat, which avoids the interference of the roof panel's thermal expansion and contraction with the supporting structure and prevents the support from deformation and damage. It also uses the roof cover plate 4 to cover waterproof components and multiple folded edges to prevent seepage. It is also easy to maintain separately and is suitable for various industrial and civil building roofs.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0063] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A roof node structure that operates independently, characterized in that, Includes column keel (1), horizontal keel (2), vertical keel (3), roof slab (4), fixing screws (5), roof flashing (6), ridge strip (7), flashing support (8), ridge end clamp and end (9), and roof panel (10). The column keel (1) is installed on the steel structure (11), the transverse keel (2) is installed on the column keel (1), the longitudinal keel (3) is installed on the transverse keel (2), and the roof plate (4) is laid on the upper part of the longitudinal keel (3) and the transverse keel (2) and covers the outer side of the longitudinal keel (3), and is fixed by fixing screws (5); the column keel (1), the transverse keel (2), the longitudinal keel (3), the roof plate (4), the fixing screws (5) and the steel structure together form the first whole; The roof panel (10) is connected to the roof purlin (12) via a fixing seat and can freely extend and retract along the fixing seat; the ridge end clamp and end (9) are connected to the ridge seat strip (7) via rivets, the ridge seat strip (7) is connected to the roof panel (10) via rivets, the flashing support (8) is connected to the roof panel (10) via rivets, and the roof flashing (6) is connected to the ridge seat strip (7) and the flashing support (8) via rivets respectively; the roof flashing (6), the ridge seat strip (7), the flashing support (8), the ridge end clamp and end (9), and the roof panel (10) together form a second whole; The first integral part and the second integral part are not directly connected, and the roof is based on the first integral part to achieve independent operation.

2. The independently operating roof node structure according to claim 1, characterized in that, The first and second integrals operate independently and do not interfere with each other; when the roof panel (10) expands and contracts due to thermal expansion and contraction, it drives the second integral to move synchronously, and this movement does not affect the first integral.

3. The independently operating roof node structure according to claim 1, characterized in that, The roof panel (4) has a folded edge structure along the roof drainage direction; the folded edge structure includes at least a water-drip folded edge (14) for dripping water, a fixing folded edge (15) for cooperating with fixing screws (5), and a drainage folded edge (16) for guiding drainage.

4. The independently operating roof node structure according to claim 3, characterized in that, The fixing screw (5) passes through the fixing flange (15) of the roof plate (4) to fix the roof plate (4) to the longitudinal keel (3).

5. The independently operating roof node structure according to claim 1, characterized in that, The roof flashing (6) has an upward folded edge and a downward folded edge; the upward folded edge is used to block rainwater backflow, and the downward folded edge is used to guide rainwater outflow.

6. The independently operating roof node structure according to claim 1, characterized in that, The roof panel (4) can completely cover the roof flashing (6), as well as the ridge support strip (7), flashing support (8), ridge end clamp and end (9) below the roof flashing (6); and the roof panel (4) has a reserved excess coverage length to accommodate the positional changes of the second whole after the roof panel (10) expands and contracts.

7. The independently operating roof node structure according to claim 1, characterized in that, The roof panel (10) has an upward fold (13) at the position corresponding to the ridge to form a water-blocking structure to improve the waterproof performance at the ridge.

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