CN-224213660-U - Reinforced concrete gutter and composite steel plate roofing cornice connection node structure

CN224213660UCN 224213660 UCN224213660 UCN 224213660UCN-224213660-U

Abstract

The utility model provides a reinforced concrete gutter and composite steel plate roof cornice connection node structure which comprises a reinforced concrete gutter, a roof board, a cornice sealing plate, a gutter folding piece, an upper horizontal section and a cornice plug, wherein the bottom of the reinforced concrete gutter is provided with a horizontal groove bottom, the end part of the bottom of the roof board is arranged above the outer wall of the reinforced concrete gutter and is provided with an inclined slope in the direction of the gutter, the cornice sealing plate is a through-long L-shaped plate, the transverse section of the cornice sealing plate is fixedly connected with the roof board, the vertical section of the cornice sealing plate extends downwards along the side surfaces of the roof board and the outer wall of the reinforced concrete gutter, the gutter folding piece is a through-long folding plate, the lower horizontal section of the cornice sealing plate is fixedly connected with the top surface of the outer wall of the gutter, the upper horizontal section of the cornice sealing plate is fixedly connected with the lower horizontal section of the roof board, and the cornice plug is arranged between the cornice horizontal section and the roof board. The utility model can simplify the construction process and improve the waterproof performance and durability while ensuring the connection strength, thereby meeting the requirements of modern building engineering.

Inventors

ZHAO AIHUI
Rao Hanwen
LIN FANWEI
CHEN XI
HUANG HAO
LIU YUJIA
LU XIN
XIA MENGLIN
TANG MENGYING
WANG ZHIJING

Assignees

中国电力工程顾问集团中南电力设计院有限公司

Dates

Publication Date: 20260508
Application Date: 20250513

Claims (10)

1. A reinforced concrete gutter and composite steel plate roof cornice connection node structure is characterized by comprising: The bottom of the reinforced concrete gutter is provided with a horizontal groove bottom for collecting and discharging rainwater of the roof board; The roof board is provided with an inclined slope in the gutter direction, and the bottom end of the roof board is erected above the outer wall of the reinforced concrete gutter so as to guide rainwater into the reinforced concrete gutter directly; the cornice sealing plate is a through-long L-shaped plate, the transverse section of the cornice sealing plate is fixedly connected to the roof board, and the vertical section of the cornice sealing plate extends downwards along the side surfaces of the roof board and the outer wall of the reinforced concrete gutter to form a water retaining backing; The gutter folding piece is a through-length bending plate, the lower horizontal section is fixedly connected to the top surface of the outer wall of the gutter, and the upper horizontal section is fixedly connected below the edge of the bottom surface of the roof board and is used for receiving the roof board; The cornice plug is arranged between the cornice sealing plate horizontal section and the roof board and is used for sealing the end and preventing rainwater or sundries from laterally penetrating into the roof board.
2. The reinforced concrete gutter and composite steel plate roof cornice connecting node structure according to claim 1 is characterized in that heat-insulating cotton is paved between a vertical section of a cornice sealing plate and the outer wall of the gutter, and the vertical section and an upper horizontal section of a gutter folding piece are attached and cover the heat-insulating cotton.
3. The reinforced concrete gutter and clad steel plate roof cornice connection node structure according to claim 1, wherein the roof plate is sequentially stacked with a roof bottom plate, a rock wool heat insulation layer, a waterproof breathable layer and a roof outer plate from bottom to top.
4. The reinforced concrete gutter and composite steel plate roof cornice connection node structure according to claim 3, wherein the transverse section of the cornice sealing plate is fixedly connected to the top surface of the waterproof and breathable layer, and the vertical section extends downwards to cover the waterproof and breathable layer, the rock wool heat-insulating layer and the side surface of the roof bottom plate until the cornice sealing plate is attached to the inner side of the outer wall of the gutter.
5. The reinforced concrete gutter and clad steel plate roofing cornice connection node structure according to claim 3, wherein the upper horizontal section of the gutter folding member is attached to the bottom surface of the roofing bottom plate.
6. The reinforced concrete gutter and clad steel plate roof cornice connection node structure according to claim 3, wherein a fixed support is arranged between the waterproof breathable layer and the roof outer plate, a bottom plate of the fixed support is fixedly connected with the roof bottom plate, and a horizontal supporting surface is arranged at the top end of the fixed support and used for supporting the bottom surface of the roof outer plate.
7. The reinforced concrete gutter and clad steel plate roofing cornice connection node structure of claim 6, wherein the cornice plug is disposed between the roofing outer panel bottom surface and the cornice seal top surface.
8. The reinforced concrete gutter and clad steel plate roofing cornice connection node structure of claim 1, wherein the cornice sealing plate is formed by bending a single plate, and sequentially comprises: The first horizontal section is fixedly connected with the bottom edge of the roof board; A vertical section folded out at right angles to the first horizontal section and extending downward; The first inclined section is folded out at an obtuse angle with the vertical section and is inclined towards the inner side of the reinforced concrete gutter; The second inclined section is folded out from the first inclined section at an obtuse angle, and the free end of the second inclined section is inclined towards the inner side of the reinforced concrete gutter to prevent capillary water seepage.
9. The reinforced concrete gutter and clad steel plate roofing cornice connection node structure of claim 1, wherein the cornice sealing plate is fixed to the inner side surface of the outer wall of the reinforced concrete gutter by cement nails uniformly distributed at intervals along the reinforced concrete gutter.
10. The reinforced concrete gutter and clad steel plate roofing cornice connection node structure according to claim 1, wherein the gutter folded piece is fixed on the top surface of the outer wall of the reinforced concrete gutter by an expansion bolt.

Description

Reinforced concrete gutter and composite steel plate roofing cornice connection node structure Technical Field The utility model belongs to the technical field of constructional engineering, and particularly relates to a connecting node structure of a reinforced concrete gutter and a composite steel plate roof cornice. Background In the existing building engineering, a roof drainage system, in particular to a node structure for connecting a reinforced concrete gutter and a cornice of a composite steel plate roof, is always a weak link of water resistance and durability. The traditional method mainly comprises the following three steps: Welding connection-although higher section strength can be obtained, high-temperature welding can cause local thermal deformation and coating damage of the composite steel plate, so that the appearance and the corrosion resistance are affected, and high requirements are also put on the technical level and quality control of field construction; In addition, the bolts are arranged on the roof board through holes, so that the strength of the board is weakened, and the overall stability of the node is reduced; Adhesive fixing-can avoid punching and high-temperature operation, but the adhesive property is greatly influenced by environmental humidity and temperature, and the adhesive layer is easy to age and crack, so that the adhesive layer falls off and leaks after long-term use. The above-described method is difficult to achieve both ease of construction, waterproof reliability and structural durability due to temperature stress, mechanical fatigue, or aging of materials. In view of the above, there is a need for a new connecting node structure which does not need welding, does not need to be perforated and does not depend on an easy aging adhesive, and can realize continuous water shielding backing, gland sealing and end sealing through a standardized bending plate and a simple fastener, thereby greatly improving the waterproof performance, the construction efficiency and the service life of a roof-gutter node and meeting the high performance requirements of modern buildings. Disclosure of utility model The utility model aims to solve the defects in the prior art, and provides a reinforced concrete gutter and composite steel plate roof cornice connecting node structure which can simplify the construction process and improve the waterproof performance and durability while ensuring the connection strength, thereby meeting the requirements of modern building engineering. The technical scheme adopted by the utility model is that the connecting node structure of the reinforced concrete gutter and the cornice of the composite steel plate roof comprises the following components: The bottom of the reinforced concrete gutter is provided with a horizontal groove bottom for collecting and discharging rainwater of the roof board; The roof board is provided with an inclined slope in the gutter direction, and the bottom end of the roof board is erected above the outer wall of the reinforced concrete gutter so as to guide rainwater into the reinforced concrete gutter directly; the cornice sealing plate is a through-long L-shaped plate, the transverse section of the cornice sealing plate is fixedly connected to the roof board, and the vertical section of the cornice sealing plate extends downwards along the side surfaces of the roof board and the outer wall of the reinforced concrete gutter to form a water retaining backing; The gutter folding piece is a through-length bending plate, the lower horizontal section is fixedly connected to the top surface of the outer wall of the gutter, and the upper horizontal section is fixedly connected below the edge of the bottom surface of the roof board and is used for receiving the roof board; The cornice plug is arranged between the cornice sealing plate horizontal section and the roof board and is used for sealing the end and preventing rainwater or sundries from laterally penetrating into the roof board. According to the technical scheme, heat-insulating cotton is paved between the vertical section of the cornice sealing plate and the outer wall of the gutter, and the vertical section and the upper horizontal section of the gutter folding piece are attached and cover-pressed with the heat-insulating cotton. In the technical scheme, the roof board is sequentially overlapped with the roof bottom plate, the rock wool heat insulation layer, the waterproof breathable layer and the roof outer plate from bottom to top. Among the above-mentioned technical scheme, the horizontal section fixed connection of eaves mouth shrouding is in waterproof ventilative layer top surface, and vertical section downwardly extending covers waterproof ventilative layer, rock wool heat preservation and roofing bottom plate side, until laminating gutter outer wall inboard. In the technical scheme, the upper horizontal section of the gutter folded piece is attached to the bottom su