Water retaining ridge structure for bottom of outer curtain wall of high-speed rail station building

Abstract

The utility model discloses a water retaining ridge structure for the bottom of an outer curtain wall of a high-speed rail station building, which comprises a water retaining ridge arranged below a cross beam at the bottom of the outer curtain wall. The water retaining ridge is fixedly arranged on the pouring layer through a fixing assembly. A waterproof layer is arranged on the water retaining ridge, and waterproof layer isolation pads are arranged between the two sides of the water retaining ridge and the vertical stiles. A gap is formed between the water retaining ridge and the cross beam, and a heat preservation layer is arranged in the gap. The utility model aims to solve the problem of bottom leakage of the outer curtain wall.

Description

Technical Field

[0001] This invention belongs to the field of building engineering technology and relates to a water-retaining sill structure at the bottom of the exterior curtain wall of a high-speed railway station. Background Technology

[0002] With the acceleration of urbanization, the scale and number of high-speed railway station buildings, as important transportation hubs, are constantly increasing. The exterior curtain wall of a high-speed railway station not only serves to decorate the building's appearance but also plays a crucial role in its waterproofing and insulation performance. The base of the curtain wall, being a vulnerable area to rainwater erosion, requires a robust waterproofing structure. The water-retaining sill structure, as a key component of the waterproofing at the base of the curtain wall, directly affects the waterproofing effectiveness and functionality of the high-speed railway station building.

[0003] Several problems exist in the practical application of water-retaining sill structures at the base of the exterior curtain wall of high-speed railway stations. Poor drainage and water accumulation at the base of the curtain wall are common. Long-term water accumulation near the sill can easily seep into the building's interior, causing leaks at the base of the curtain wall, affecting the normal use of the station interior, and damaging electrical equipment and decorations. Traditional water-retaining sill structures are insufficient in handling structural deformation. During use, high-speed railway stations experience displacement and deformation due to temperature changes and foundation settlement, creating gaps between the sill and surrounding structures, compromising waterproofing and leading to leaks. Furthermore, some existing water-retaining sill structures lack adequate thermal insulation, failing to meet the energy-saving and indoor comfort requirements of high-speed railway stations.

[0004] Currently, to address the issue of leakage at the base of exterior curtain walls, some buildings employ a method of applying waterproof coatings to the surface of the water-retaining sill to enhance waterproofing. This method can improve the waterproofing capacity of the sill to some extent. Other projects increase the height of the water-retaining sill to prevent water accumulation and leakage, but both methods have limitations. While applying waterproof coatings can enhance waterproofing, the coating is prone to peeling off under long-term exposure to sun and rain and structural deformation, making the waterproofing effect unsustainable. Simply increasing the height of the water-retaining sill cannot solve the problem of leakage through gaps caused by structural deformation, nor does it improve thermal insulation performance. Summary of the Invention

[0005] This invention provides a water-retaining sill structure for the bottom of the exterior curtain wall of a high-speed railway station building to solve the problem of leakage at the bottom of the exterior curtain wall.

[0006] To solve the above problems, the technical solution adopted by the invention is as follows:

[0007] A water-retaining sill structure for the bottom of the exterior curtain wall of a high-speed railway station includes a water-retaining sill, which is located below the bottom horizontal beam of the exterior curtain wall; the water-retaining sill is fixedly mounted on the cast-in-place layer by fixing components; a waterproof layer is provided on the water-retaining sill, and waterproof layer isolation pads are provided between the water-retaining sill and the mullions on both sides; an insulation layer is provided between the water-retaining sill and the horizontal beam.

[0008] The principle behind this solution is:

[0009] By placing the water-retaining sill below the bottom beam of the exterior curtain wall and fixing it to the cast-in-place layer using fastening components, and further enhancing the waterproof performance with a waterproof layer on the water-retaining sill, the waterproof isolation pads between the two sides and the mullions can prevent water from seeping in from the sides. The gap between the water-retaining sill and the beam is filled with an insulation layer, which can reduce heat loss and improve the building's energy efficiency, and also provide a buffer for possible displacement between the water-retaining sill and the beam, avoiding mutual influence and damage caused by temperature changes or structural deformation, and ensuring the normal use and durability of the building.

[0010] The beneficial effects of this solution are:

[0011] The retaining wall is securely installed on the poured layer using fixing components, ensuring that it can stand firm against wind and rain without shifting or loosening. The waterproof layer installed on the retaining wall effectively prevents water penetration. At the same time, the waterproof isolation pads between the retaining wall and the mullions on both sides prevent water from seeping in through the side gaps.

[0012] The insulation layer installed in the gap between the water-retaining sill and the crossbeam not only prevents drastic temperature changes during temperature fluctuations, thus preventing the exterior curtain wall from expanding and contracting due to heat, but also acts as a buffer, reducing potential damage to the building structure caused by thermal expansion and contraction and extending the building's service life.

[0013] The water-retaining sill and the waterproof layer installed on it enhance the waterproofing effect, reduce the risk of rainwater infiltration, ensure the dryness and comfort inside the high-speed railway station building, and avoid equipment damage, decoration damage, and potential safety hazards that may be caused by rainwater leakage.

[0014] Furthermore, the retaining wall is constructed using C20 fine aggregate concrete, with a width of no less than 150mm and a height of no less than 50mm. The surface is smoothed. The choice of C20 fine aggregate concrete ensures the retaining wall has good integrity and strength. The properties of this material allow it to withstand significant water pressure and external impacts, making it less prone to cracking or damage. The wider and taller dimensions increase the water-retaining capacity and height, better handling heavy rainfall or sudden water flow impacts, and effectively preventing rainwater from overflowing the retaining wall and entering the building interior.

[0015] Furthermore, the fixing components include M8×100 expansion bolts and φ8 steel bars. The expansion bolts are used to fix the water-retaining sill to the cast-in-place layer at 500mm intervals. The φ8 steel bars are installed along the length of the water-retaining sill and welded to the expansion bolts. Using M8×100 expansion bolts to fix the water-retaining sill to the cast-in-place layer at 500mm intervals provides uniform and stable connection points. This spacing effectively distributes stress while ensuring connection strength, allowing the water-retaining sill to adhere firmly to the cast-in-place layer at all points. Even under significant external impacts, such as strong winds or water pressure, it remains stable without displacement or loosening, thus ensuring the waterproof function of the water-retaining sill remains unaffected.

[0016] Furthermore, the waterproof layer is a waterproof membrane, and a 4mm thick waterproof membrane isolation pad is installed between the earthen retaining wall and the mullion on both sides. This pad can adapt to minor deformations of the building structure, effectively resisting water penetration and greatly enhancing the overall waterproofing effect of the retaining wall area. It reduces the risk of rainwater leakage and provides reliable waterproof protection for the high-speed railway station building. The 4mm thick waterproof membrane isolation pad is placed at the junction of the retaining wall and the mullion. Since the junction between the mullion and the retaining wall is usually a weak point prone to gaps and water seepage, the isolation pad fills these potential gaps and prevents water from spreading along the junction. At the same time, its 4mm thickness provides sufficient isolation and waterproofing without excessively increasing construction difficulty and cost.

[0017] Furthermore, one end of the waterproof membrane extends outdoors, and the other end extends to half the width of the retaining wall. The outdoor end of the waterproof membrane extends to the area below the stone slab. This extension of the waterproof membrane to the outside and reaching the area below the stone slab forms a continuous waterproof barrier at the boundary between the building and the external environment. This effectively prevents rainwater from directly penetrating into the building, especially under severe weather conditions with wind and rain. It greatly enhances the building's waterproofing capabilities and reduces the possibility of rainwater intrusion. The membrane extending to half the width of the retaining wall covers the easily permeable parts of the retaining wall itself and also provides some protection to adjacent structural parts, preventing water from seeping in through weak points around the retaining wall.

[0018] Furthermore, flexible rubber gaskets are provided on both sides of the insulation layer. There are two flexible rubber gaskets on both sides of the insulation layer. The flexible rubber gaskets have good elasticity and cushioning performance. When the insulation layer is subjected to expansion and contraction caused by external pressure or temperature changes, the rubber gaskets can play a buffering and regulating role, reducing the stress on the insulation layer, thereby reducing the risk of damage or deformation of the insulation layer due to uneven stress, and extending the service life of the insulation layer. The flexibility of the rubber gaskets can fill the tiny gaps that may exist between the insulation layer and adjacent structures, enhance the sealing of the entire structure, prevent the penetration of air and moisture, and further improve the insulation effect and waterproof performance.

[0019] Furthermore, a waterproof sealant is applied between the flexible rubber gasket and the insulation layer to fill the gaps. This sealant completely fills the tiny gaps between the flexible rubber gasket and the insulation layer, forming a seamless connection. This significantly enhances the overall waterproof performance of the structure, effectively preventing moisture penetration through these gaps and ensuring the dryness of the bottom of the high-speed railway station's exterior curtain wall. The sealant also has excellent adhesion properties, enabling the flexible rubber gasket and insulation layer to bond tightly, improving the structure's integrity and stability. Under external impact or temperature changes, it is less prone to delamination or detachment, ensuring long-term protective effects.

[0020] Furthermore, the waterproof layer at one end of the retaining wall is angled and not attached to the retaining wall. This angled design creates a natural drainage slope, allowing rainwater to flow quickly away when it falls into this area, reducing water accumulation on the surface and thus lowering the likelihood of water infiltration. Even if a small amount of water does seep in, the angled structure will quickly guide it out, preventing potential damage to the retaining wall and building structure. The design of the waterproof layer not being attached to the retaining wall also avoids friction, compression, and adhesion that could occur between them due to close contact. This helps reduce wear and damage to the waterproof layer, extending its service life. Simultaneously, with temperature changes, both layers can expand and contract relatively independently, reducing the risk of cracks and breakage caused by mutual restraint. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Detailed Implementation

[0022] The reference numerals in the accompanying drawings include: 1. Cast-in-place layer; 2. Expansion bolt; 3. Water-retaining sill; 4. Reinforcing steel bar; 5. Concrete layer; 6. Stone slab; 7. Waterproof layer; 8. Insulation layer; 9. Sealant; 10. Column; 11. Beam; 12. Flexible rubber gasket; 13. Fixing component.

[0023] Example 1 is basically as shown in the appendix. Figure 1As shown, a water-retaining sill 3 structure for the bottom of the exterior curtain wall of a high-speed railway station includes a water-retaining sill 3, a fixing component 13, a waterproof layer 7, and a thermal insulation layer 8. The water-retaining sill 3 is located below the bottom horizontal beam 11 of the exterior curtain wall and is cast in place with C20 fine stone concrete. Its width is not less than 150mm and its height is not less than 50mm. The surface is polished to ensure that the water-retaining sill 3 has good integrity and strength, can withstand large water pressure and external impact, and is not prone to cracks or damage. The wider and taller dimensions increase the water-retaining capacity and height, effectively preventing rainwater from crossing the water-retaining sill 3 and entering the building interior.

[0024] The water-retaining sill 3 is fixedly installed on the cast-in-place layer 1 by a fixing component 13, which includes M8×100 expansion bolts and φ8 steel bars 4. The expansion bolts are used to fix the water-retaining sill 3 to the cast-in-place layer 1 at 500mm intervals. This ensures connection strength while effectively distributing stress, allowing the water-retaining sill 3 to adhere firmly to the cast-in-place layer 1 at all points. Even under significant external impacts, such as strong winds or water pressure, it remains stable, ensuring that the waterproofing function of the water-retaining sill 3 is not affected. The φ8 steel bars 4 are installed along the entire length of the water-retaining sill 3 and welded to the expansion bolts, further enhancing the structural strength and stability of the water-retaining sill 3.

[0025] A waterproof layer 7, consisting of a waterproof membrane, is installed on the retaining sill 3. A 4mm thick waterproof membrane is installed between the retaining sill 3 and the mullion on both sides. This waterproof membrane can adapt to minor deformations of the building structure, effectively resisting water penetration and greatly enhancing the overall waterproofing effect of the retaining sill 3. This reduces the risk of rainwater leakage and provides reliable waterproof protection for the high-speed railway station building. The 4mm thick waterproof membrane fills the potential gaps at the connection between the retaining sill 3 and the mullion, preventing water from spreading along the junction. While providing sufficient isolation and waterproofing, it does not excessively increase construction difficulty or cost.

[0026] One end of the waterproof membrane extends to the outside, and the other end extends to half the width of the retaining wall 3. The end of the waterproof membrane extending to the outside extends to the area below the stone slab 6, effectively preventing rainwater from directly penetrating into the building from the outside, enhancing the building's waterproofing ability, and reducing rainwater intrusion. The waterproof membrane extending to half the width of the retaining wall 3 not only covers the parts of the retaining wall 3 that are prone to water seepage, but also protects the adjacent structural parts, preventing water from seeping in through the weak points around the retaining wall 3.

[0027] A gap is provided between the water-retaining sill 3 and the crossbeam 11, within which an insulation layer 8 is installed. Two flexible rubber gaskets 12 are installed on both sides of the insulation layer 8. These flexible rubber gaskets 12 have good elasticity and cushioning properties. When the insulation layer 8 is subjected to expansion and contraction caused by external pressure or temperature changes, the rubber gaskets can buffer and adjust, reducing the stress on the insulation layer 8. This reduces the risk of damage or deformation due to uneven stress, extending the service life of the insulation layer 8. The flexibility of the rubber gaskets can fill any small gaps that may exist between the insulation layer 8 and adjacent structures, enhancing the overall sealing of the structure, preventing air and moisture penetration, and further improving the insulation effect and waterproof performance.

[0028] A waterproof sealant 9 is applied between the flexible rubber gasket 12 and the insulation layer 8 to fill the gap. The waterproof sealant 9 can completely fill the tiny gaps between the flexible rubber gasket 12 and the insulation layer 8, forming a seamless connection. This greatly enhances the waterproof performance of the overall structure, effectively preventing moisture from penetrating through these gaps and ensuring the dryness of the bottom of the outer curtain wall of the high-speed railway station. The good adhesion of the sealant 9 makes the flexible rubber gasket 12 and the insulation layer 8 tightly bonded, improving the integrity and stability of the structure. When subjected to external impact or temperature changes, it is not easy for delamination or separation to occur, ensuring long-term protective effect.

[0029] Furthermore, the waterproof layer 7 at one end of the retaining wall 3 is inclined and not attached to the retaining wall 3. This inclined design creates a natural drainage slope, allowing rainwater to flow quickly away when it falls into this area, reducing water accumulation on the surface of the waterproof layer 7 and lowering the possibility of water infiltration. Even if a small amount of rainwater does infiltrate, the inclined structure will quickly guide it out, preventing potential damage to the retaining wall 3 and the building structure. The design of the waterproof layer 7 not being attached to the retaining wall 3 avoids friction, compression, and adhesion that could occur due to close contact, helping to reduce wear and damage to the waterproof layer 7 and extend its service life. Simultaneously, with temperature changes, both layers can expand and contract relatively independently, reducing the risk of cracks and damage caused by mutual restraint.

[0030] The above are merely embodiments of the present invention. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A water retaining ridge structure for the bottom of an outer curtain wall of a high-speed railway station building, characterized in that, The water retaining dam is arranged below the bottom transom of the outer curtain wall, is fixedly arranged on the pouring layer through a fixing assembly, is provided with a waterproof layer, and is provided with waterproof isolation pads between both sides of the water retaining dam and the vertical fagot.

2. The water dam structure at the bottom of the outer curtain wall of a high-speed rail station building according to claim 1, characterized in that, The water retaining dam is made of C20 fine stone concrete, has a width of not less than 150 mm and a dam height of not less than 50 mm, and the surface is subjected to polishing treatment.

3. The water dam structure at the bottom of the outer curtain wall of a high-speed rail station building according to claim 1, characterized in that, The fixing assembly comprises M8*100 expansion bolts and φ8 steel bars, the expansion bolts are used for fixedly connecting the water retaining dam and the pouring layer, the interval is 500 mm, the φ8 steel bars are arranged along the length direction of the water retaining dam, and are welded and fixed with the expansion bolts.

4. The water dam structure at the bottom of the outer curtain wall of a high-speed rail station building according to claim 1, characterized in that, The waterproof layer is waterproof coiled material, and 4 mm thick waterproof coiled material isolation pads are arranged between both sides of the water retaining dam and the vertical fagot.

5. The water dam structure at the bottom of the outer curtain wall of a high-speed rail station building according to claim 4, characterized in that, One end of the waterproof coiled material extends to the outdoor, and the other end extends to a position of one half of the width of the water retaining dam.

6. The water dam structure at the bottom of the outer curtain wall of a high-speed rail station building according to claim 1, characterized in that, The waterproof coiled material extends to a position below the stone plate.

7. The water dam structure at the bottom of the outer curtain wall of a high-speed rail station building according to claim 6, characterized in that, Flexible rubber gaskets are arranged on both sides of the heat preservation layer, and the flexible rubber gaskets are two pieces arranged on both sides of the heat preservation layer.

8. The water dam structure at the bottom of the outer curtain wall of a high-speed rail station building according to claim 1, characterized in that, Waterproof sealing paste is arranged between the flexible rubber gaskets and the heat preservation layer for caulking. The waterproof layer at one end of the water retaining dam is arranged in an inclined manner and does not adhere to the water retaining dam.

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