High-strength stainless steel gutter structure for building roof

CN224813393UActive Publication Date: 2026-09-29CHINA CONSTRUCTION THIRD BUREAU URBAN CONSTRUCTION CO LTD +1
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Patent Information

Application Number
CN202522788326.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-29
Publication Date
2026-09-29
Estimated Expiration
2035-12-29

AI Technical Summary

Technical Problem

传统的天沟结构在设计上存在一些不足之处,导致其在实际使用过程中面临诸多问题

Benefits of technology

[0011]1、天沟本体通过承载翻边与屋面檩条用锁钉固定,同时底部由焊接在钢柱上的水平钢架支撑,内部还设有焊接于左右侧壁的拉条,底部下方有与水平钢架焊接的角钢。这种多维度、多层次的连接与支撑方式,使天沟本体与整个屋面支撑体系形成一个有机的整体,各部件之间协同受力,有效分散了天沟所承受的荷载,大大提高了天沟结构的整体稳定性,减少了因局部受力过大而导致的结构破坏风险。2、拉条的设置增强了天沟本体左右侧壁之间的联系,有效限制了侧壁在受力时的变形。角钢与天沟本体及水平钢架的焊接连接,增强了天沟关键部位的承载及抗变形能力。该设置有效增强了天沟本体自身的结构强度,使其在受力时不易产生变形,能够适应更恶劣的天气条件和更大的屋面荷载。

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Abstract

The utility model discloses a kind of building roof high-strength stainless steel gutter structure, including gutter body and the several steel columns of longitudinal erection, between each steel column top, roof purlin is fixedly laid, gutter body extends along longitudinal, and with certain gradient is laid on the outside of steel column top, its section is U-shaped, the side of gutter body close to steel column is formed into load-bearing flanging by everted, load-bearing flanging is fixed on the top surface of roof purlin, the bottom of gutter body is supported on several horizontal steel frames, horizontal steel frame is also arranged along longitudinal interval, and is welded on each steel column, the inside of gutter body is along longitudinal interval and is laid with multiple braces, brace is welded between the left and right side walls of gutter body, two longitudinal extension angle steels are arranged between two adjacent horizontal steel frames, two angle steels are left and right interval arrangement, and two angle steels are all with corresponding horizontal steel frame and exist welding point.The utility model effectively enhances the integrity of gutter body and roof support system, improves the self-strength of gutter structure.
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Description

Technical Field

[0001] This utility model relates to the field of roof drainage technology, and in particular to a high-strength stainless steel gutter structure for building roofs. Background Technology

[0002] In building structural systems, gutters, as a key component of roof drainage systems, play a crucial role in collecting and guiding rainwater for orderly discharge. Their performance directly affects the safety and durability of the building. Especially in areas with heavy rainfall or frequent snowfall, the stable and reliable operation of gutters is vital for preventing roof leaks and protecting the building structure from water damage. Traditional gutter structures have some design shortcomings, leading to numerous problems in practical use. Firstly, the connection between traditional gutter structures and the roof support system is relatively simple, typically relying on simple supports for fixation, lacking an effective collaborative stress-bearing mechanism between components. Under heavy roof loads or severe weather conditions (such as strong winds, heavy rain, and snow accumulation), the gutter structure is prone to localized excessive stress, resulting in deformation, damage, or even detachment, seriously affecting the normal use and safety of the building. Secondly, traditional gutter structures themselves have limited strength and stability. When subjected to loads such as rainwater impact and snow pressure, its side walls and bottom are prone to deformation, leading to poor drainage and causing problems such as roof leakage. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention aims to provide a high-strength stainless steel gutter structure for building roofs, so as to enhance the integrity of the gutter body and the roof support system, improve the strength of the gutter structure itself, and enable it to adapt to harsh weather conditions and large roof loads.

[0004] To achieve the above objectives, this utility model proposes a high-strength stainless steel gutter structure for building roofs, comprising a gutter body and several steel columns erected longitudinally at certain intervals. Roof purlins are fixedly laid between the tops of each steel column. The gutter body extends longitudinally and is arranged on the outer side of the top of the steel columns at a certain slope, with a U-shaped cross-section. The side of the gutter body closest to the steel column is turned outward to form a load-bearing flange. The load-bearing flange is fixed to the top surface of the roof purlins by several locking nails arranged longitudinally at intervals. The bottom of the gutter body is supported on several horizontal steel frames. They are also arranged longitudinally at intervals and welded to each steel column. Multiple tie rods are arranged longitudinally at intervals inside the gutter body. The tie rods are welded between the left and right side walls of the gutter body, between two adjacent horizontal steel frames, and located below the bottom of the gutter body. Two longitudinally extending angle steels are also arranged, with the two angle steels arranged alternately on the left and right. One angle steel is L-shaped and welded to the bottom edge of the gutter body away from the steel column. The other angle steel is inverted L-shaped and welded to the bottom surface of the gutter body near the steel column. The front and rear ends of the two angle steels have welding points with the corresponding horizontal steel frames.

[0005] In the above scheme, the distance between two adjacent steel columns is 3-4 meters. The steel columns are the main supporting structure of the building roof, and appropriate spacing between the steel columns also helps to form a stable gutter structure.

[0006] In the above scheme, the distance between two adjacent tie rods is 0.6~0.7m. The tie rods effectively limit the deformation of the sidewall, enhance the stiffness and stability of the sidewall, and enable the gutter body to maintain its shape integrity even when subjected to large loads. The reasonable tie rod spacing can make the stress distribution of the gutter body more uniform when subjected to loads.

[0007] In the above scheme: the gutter body is made of bent stainless steel plate, and its overall cross-sectional length is 1.5m. The main function of the gutter is to collect and discharge rainwater, and the overall cross-sectional length of 1.5m can provide sufficient effective drainage cross-section.

[0008] In the above scheme: the horizontal steel frame is H-beam, and the tie rod is a stainless steel bracket. H-beams have high bending and torsional stiffness, and their unique cross-sectional shape allows them to withstand large loads while remaining relatively lightweight. Stainless steel has excellent corrosion resistance and can be used for a long time in corrosive media such as acids, alkalis, and salts without damage.

[0009] In the above scheme: the side of the gutter body away from the steel column is folded inward to form a reinforced flange, which further improves the overall strength of the gutter body and prevents it from deforming under stress.

[0010] The beneficial effects of this utility model are:

[0011] 1. The gutter body is secured to the roof purlins with locking nails via load-bearing flanges, and its bottom is supported by a horizontal steel frame welded to steel columns. Internally, tie rods are welded to the left and right side walls, and angle steel is welded to the horizontal steel frame at the bottom. This multi-dimensional, multi-layered connection and support method makes the gutter body and the entire roof support system form an organic whole. The components work together to distribute the load, effectively improving the overall stability of the gutter structure and reducing the risk of structural failure due to excessive local stress. 2. The tie rods enhance the connection between the left and right side walls of the gutter body, effectively limiting the deformation of the side walls under stress. The welded connection of the angle steel to the gutter body and the horizontal steel frame enhances the load-bearing and deformation resistance of key parts of the gutter. This design effectively enhances the structural strength of the gutter body itself, making it less prone to deformation under stress and enabling it to adapt to harsher weather conditions and greater roof loads. Attached Figure Description

[0012] Figure 1 This is a cross-sectional schematic diagram of the present invention.

[0013] Figure 2 Yes, this is a diagram showing a partial decomposition. Detailed Implementation

[0014] like Figure 1 As shown in Figure 2, a high-strength stainless steel gutter structure for building roofs mainly consists of a gutter body 1 and several steel columns 2 erected longitudinally at certain intervals.

[0015] Roof purlins 3 are fixedly laid between the tops of each steel column 2. The gutter body 1 extends longitudinally and is laid on the outer side of the top of the steel column 2 with a certain slope, and its cross-section is U-shaped. The side of the gutter body 1 closest to the steel column 2 is turned outward to form a load-bearing flange 11. The load-bearing flange 11 is fixed to the top surface of the roof purlin 3 by several locking nails, which are arranged at intervals along the longitudinal direction.

[0016] The bottom of the gutter body 1 is supported on several horizontal steel frames 4, which are also arranged longitudinally at intervals and welded to each steel column 2. Multiple tie rods 5 are arranged longitudinally at intervals inside the gutter body 1, and the tie rods 5 are welded between the left and right side walls of the gutter body 1.

[0017] Between two adjacent horizontal steel frames 4, and below the bottom of the gutter body 1, two longitudinally extending angle steels 6 are also provided, with the two angle steels 6 spaced apart on the left and right; one angle steel 6 is L-shaped and welded to the bottom edge of the gutter body 1 away from the steel column 2, and the other angle steel 6 is inverted L-shaped and welded to the bottom surface of the gutter body 1 near the steel column 2, and the front and rear ends of the two angle steels 6 have welding points with the corresponding horizontal steel frame 4.

[0018] Ideally, the distance between two adjacent steel columns 2 should be 3-4 meters. Steel columns 2 are the main supporting structure of the building roof, and appropriate spacing between steel columns 2 also helps to form a stable gutter structure.

[0019] Ideally, the distance between two adjacent tie rods 5 should be 0.6~0.7m. The tie rods 5 effectively limit the deformation of the sidewall, enhance the stiffness and stability of the sidewall, and enable the gutter body 1 to maintain its shape integrity even when subjected to large loads. A reasonable spacing of the tie rods 5 can make the stress distribution of the gutter body 1 more uniform when subjected to loads.

[0020] Ideally, the gutter body 1 should be made of bent stainless steel plate with an overall cross-sectional length of 1.5m. The main function of the gutter is to collect and discharge rainwater, and an overall cross-sectional length of 1.5m provides sufficient effective drainage cross-section.

[0021] Ideally, the horizontal steel frame 4 should be made of H-beams, and the tie rod 5 should be made of stainless steel. H-beams have high bending and torsional stiffness, and their unique cross-sectional shape allows them to withstand large loads while remaining relatively lightweight. Stainless steel has excellent corrosion resistance and can be used for a long time in corrosive media such as acids, alkalis, and salts without damage.

[0022] Ideally, the side of the gutter body 1 away from the steel column 2 should be folded inward with a reinforcing flange 12 to further improve the overall strength of the gutter body 1 and prevent it from deforming under stress.

Claims

1. A high-strength stainless steel gutter structure for building roofs, comprising a gutter body (1) and a plurality of steel columns (2) erected longitudinally at certain intervals, wherein roof purlins (3) are fixedly laid between the tops of each steel column (2), characterized in that: The gutter body (1) extends longitudinally and is installed on the outer side of the top of the steel column (2) at a certain slope. Its cross-section is U-shaped. The side of the gutter body (1) close to the steel column (2) is turned outward to form a load-bearing flange (11). The load-bearing flange (11) is fixed to the top surface of the roof purlin (3) by several locking nails. The locking nails are arranged longitudinally at intervals. The bottom of the gutter body (1) is supported on several horizontal steel frames (4). The horizontal steel frames (4) are also arranged longitudinally at intervals and are welded to each steel column (2). Multiple tie rods are arranged longitudinally at intervals inside the gutter body (1). (5) The tie rod (5) is welded between the left and right side walls of the gutter body (1), between two adjacent horizontal steel frames (4), and located below the bottom of the gutter body (1). Two longitudinally extending angle steels (6) are also provided. The two angle steels (6) are arranged alternately on the left and right. One angle steel (6) is L-shaped and welded to the bottom edge of the gutter body (1) away from the steel column (2). The other angle steel (6) is inverted L-shaped and welded to the bottom surface of the gutter body (1) near the steel column (2). The front and rear ends of the two angle steels (6) have welding points with the corresponding horizontal steel frame (4).

2. The high-strength stainless steel gutter structure for building roofs according to claim 1, characterized in that: The distance between two adjacent steel columns (2) is 3~4m.

3. The high-strength stainless steel gutter structure for building roofs according to claim 1, characterized in that: The distance between two adjacent pull bars (5) is 0.6~0.7m.

4. The high-strength stainless steel gutter structure for building roofs according to claim 1, characterized in that: The gutter body (1) is made of stainless steel plate bent into shape, and its overall cross-sectional length is 1.5m.

5. The high-strength stainless steel gutter structure for building roofs according to claim 1, characterized in that: The horizontal steel frame (4) is an H-beam, and the tie rod (5) is a stainless steel bracket.

6. The high-strength stainless steel gutter structure for building roofs according to claim 1, characterized in that: The gutter body (1) has a reinforced flange (12) folded inward on the side away from the steel column (2).