Near-zero energy consumption building outdoor evacuation steel stair connecting structure
By using a combination of embedded steel bars, thermal break pads, and connecting angle steel in near-zero energy buildings, the thermal bridging problem between evacuation steel staircases and the main structure was solved, achieving thermal break connection and improving the building's thermal insulation performance and energy efficiency.
Patent Information
- Application Number
- CN202520524979.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-25
AI Technical Summary
In near-zero energy buildings, the connection between the outdoor evacuation steel staircase and the main structure has a thermal bridge effect, which leads to heat transfer and energy loss, increasing the building's energy consumption.
The structure employs a combination of embedded steel bars, first and second thermal break insulation pads, embedded plates, first and second connecting angle steels, and connecting steel plates. The embedded steel bars and angle steels, made of stainless steel, are combined with the thermal break insulation pads made of polyurethane to form thermal break connection nodes, thus isolating heat transfer.
It effectively isolates heat transfer, improves the building's thermal insulation performance, reduces energy consumption, meets the thermal requirements of near-zero energy buildings, and has good structural stability and durability.
Smart Images
Figure CN223922541U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building structure technical field especially relates to a near zero energy consumption building outdoor evacuation steel stair connecting structure. BACKGROUND
[0002] The near zero energy consumption building reduces energy consumption to the maximum through optimizing building envelope structure, improving equipment energy efficiency and adopting renewable energy etc.
[0003] In the near zero energy consumption building, the outdoor evacuation steel stair is used as the emergency escape passage, and the outdoor evacuation steel stair with the building height exceeding 15m adopts the independent stress system completely separated from the main body and is difficult to meet the structural safety requirement, and needs to be connected with the main structure.
[0004] The traditional connecting mode directly fixes the evacuation steel stair on the concrete structure outer wall structure component of the building main body through the bolt, and the heat bridge effect often exists, leads to the heat transmission between the evacuation steel stair and the concrete structure, causes the energy loss and the building energy consumption increase, especially in the cold region or winter. UTILITY MODEL CONTENTS
[0005] The utility model mainly solves the technical problem that the heat bridge effect exists in the outdoor evacuation steel stair connecting joint in the prior art, leads to the heat transmission between the evacuation steel stair and the concrete structure, causes the energy loss and the building energy consumption increase, and provides a near zero energy consumption building outdoor evacuation steel stair connecting structure, can effectively insulate the heat transmission, realizes the heat bridge between the evacuation steel stair and the near zero energy consumption building main body, and improves the heat preservation performance of the near zero energy consumption building.
[0006] The utility model provides a near zero energy consumption building outdoor evacuation steel stair connecting structure, include: embedded steel bar, first heat bridge insulation pad, embedded plate, first connecting angle steel, second connecting angle steel, connecting steel plate and second heat bridge insulation pad,
[0007] The embedded steel bar is embedded in the outer wall structure component of the near zero energy consumption building main body, the first heat bridge insulation pad and the embedded plate are fixed on the embedded steel bar, and the first heat bridge insulation pad is tightly attached to the surface of the outer wall structure component, and the first connecting angle steel is fixed on the embedded plate,
[0008] The second connecting angle steel is fixed on the steel column of the evacuation steel stair, the second connecting angle steel is fixedly connected with one end of the connecting steel plate, the other end of the connecting steel plate is connected with the first connecting angle steel, the second heat bridge insulation pad is arranged on the first connecting angle steel, and the second heat bridge insulation pad is located between the first connecting angle steel and the connecting steel plate.
[0009] Preferably, the first heat bridge insulation pad and the second heat bridge insulation pad are made of polyurethane material.
[0010] Preferably, the outer wall structural member adopts a reinforced concrete structure; and a surface of the outer wall structural member is provided with an outer wall thermal insulation layer.
[0011] The sum of thicknesses of the first thermal bridge insulation pad and the embedded part plate is less than or equal to the thickness of the outer wall thermal insulation layer.
[0012] Preferably, the embedded steel bar is fixed with the first thermal bridge insulation pad and the embedded part plate through a plurality of fixing nuts.
[0013] Preferably, the connection steel plate and the first connecting angle steel and the connection steel plate and the second connecting angle steel are fixedly connected through a plurality of bolts respectively.
[0014] Preferably, the embedded steel bar and the embedded part plate are made of stainless steel material; and the first connecting angle steel, the second connecting angle steel and the connection steel plate are made of stainless steel material.
[0015] Preferably, the evacuation steel stair is made of Q355 steel material, and steps and handrails of the evacuation steel stair are wrapped with fireproof material.
[0016] Preferably, a sealing layer is arranged between the first thermal bridge insulation pad and the embedded part plate.
[0017] The evacuation steel stair connecting structure of the near-zero energy consumption building provided by the utility model is a thermal bridge connecting joint, an embedded steel bar is pre-buried on an outer wall structural member of a main body of a near-zero energy consumption building, a first thermal bridge insulation pad and an embedded part plate are fixed on the embedded steel bar, a first connecting angle steel is welded on the embedded part plate, a second thermal bridge insulation pad is arranged on the first connecting angle steel, the first connecting angle steel is fixed with a connection steel plate, and the connection steel plate is fixed with a steel column of an evacuation steel stair; the embedded steel bar, the embedded part plate, the first connecting angle steel, the second connecting angle steel and the connection steel plate are made of stainless steel material; the utility model has the advantages of simple structure, good stability and durability, convenient construction, improved corrosion resistance and service life of the connecting joint, and ensured structural safety and stability between the evacuation steel stair and the main body of the building. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a top view of the evacuation steel stair connecting structure of the near-zero energy consumption building provided by the utility model;
[0019] Figure 2 is a side view of the near zero energy consumption building outdoor evacuation steel stair connecting structure provided by the utility model;
[0020] Figure 3 is a connection schematic view of the heat insulation embedded part provided by the utility model;
[0021] Figure 4 is a mounting effect schematic view of the near zero energy consumption building outdoor evacuation steel stair connecting structure provided by the utility model.
[0022] Mark: 1, embedded steel bar; 2, first heat insulation bridge heat insulation pad; 3, embedded plate; 4, fixed nut; 5, first connecting angle steel; 6, second connecting angle steel; 7, connecting steel plate; 8, steel column; 9, second heat insulation bridge heat insulation pad; 10, bolt; 11, outer wall structure component; 12, outer wall thermal insulation layer; 13, evacuation steel stair. DETAILED DESCRIPTION
[0023] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the utility model will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, not to limit the utility model. In addition, it needs to be explained that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings, not all the contents.
[0024] As shown in Figures 1-4 , the utility model embodiment provides a kind of near zero energy consumption building outdoor evacuation steel stair connecting structure, comprising: embedded steel bar 1, first heat insulation bridge heat insulation pad 2, embedded plate 3, first connecting angle steel 5, second connecting angle steel 6, connecting steel plate 7 and second heat insulation bridge heat insulation pad 9.
[0025] As shown in Figure 3 , the embedded steel bar 1 is embedded in the outer wall structure component 11 of the main body of near zero energy consumption building;First heat insulation bridge heat insulation pad 2 and embedded plate 3 are fixed on the embedded steel bar 1, and the first heat insulation bridge heat insulation pad 2 is tightly attached to the surface of outer wall structure component 11;First connecting angle steel 5 is fixed on the embedded plate 3.
[0026] Specifically, the embedded steel bar 1 is fixed first heat insulation bridge heat insulation pad 2 and embedded plate 3 by multiple fixed nuts 4. Embedded steel bar 1, first heat insulation bridge heat insulation pad 2, embedded plate 3 and fixed nut 4 belong to heat insulation embedded part. The outer wall structure component 11 adopts reinforced concrete structure;The surface of the outer wall structure component 11 is provided with outer wall thermal insulation layer 12;The sum of the thickness of the first heat insulation bridge heat insulation pad 2 and the embedded plate 3 is less than or equal to the thickness of the outer wall thermal insulation layer.
[0027] The second connecting angle steel 6 is fixed on the steel column 8 of the evacuation steel stair 13, and is fixedly connected with one end of the connecting steel plate 7; the other end of the connecting steel plate 7 is connected with the first connecting angle steel 5; the second heat-breaking bridge thermal insulation pad 9 is arranged on the first connecting angle steel 5, and is located between the first connecting angle steel 5 and the connecting steel plate 7, so that the heat-breaking effect is enhanced. Specifically, the connecting steel plate 7 and the first connecting angle steel 5 and the connecting steel plate 7 and the second connecting angle steel 6 are fixedly connected by a plurality of bolts 10, and the bolts 10 are high-strength bolts.
[0028] The first heat-breaking bridge thermal insulation pad 2 and the second heat-breaking bridge thermal insulation pad 9 are arranged, heat transfer can be effectively insulated, and a heat-breaking bridge between the evacuation steel stair 13 and the near-zero energy consumption building main body is realized. The first heat-breaking bridge thermal insulation pad 2 and the second heat-breaking bridge thermal insulation pad 9 are made of polyurethane material, have low thermal conductivity and high strength characteristics. A sealing layer is arranged between the first heat-breaking bridge thermal insulation pad 2 and the embedded plate 3 to prevent air penetration and further improve the heat insulation effect. Specifically, polyurethane sealant is applied at the connecting part to form a continuous sealing layer.
[0029] The embedded steel bar 1 and the embedded plate 3 are made of stainless steel material; the first connecting angle steel 5, the second connecting angle steel 6 and the connecting steel plate 7 are made of stainless steel material. The evacuation steel stair 13 is made of Q355 steel material, and the steps and handrails of the evacuation steel stair 13 are wrapped with fireproof material; the evacuation steel stair 13 is made of high-strength steel material and meets the load-bearing requirements and fireproof performance of the evacuation steel stair 13; the steel column 8 of the evacuation steel stair 13 is an H-shaped steel column or a rectangular steel pipe column.
[0030] The mounting process of the evacuation steel stair connecting structure of the near-zero energy consumption building outdoor is provided in the embodiment of the utility model.
[0031] Firstly, the size of the embedded plate 3 and the diameter and quantity of the embedded steel bar 1 are determined according to the structure stress, and the embedded steel bar 1 is threaded at the end. When the outer wall structure component 11 of the near-zero energy consumption building main body is poured, the embedded steel bar 1 is positioned and embedded.
[0032] After the near-zero energy consumption building main body is removed, the first heat-breaking bridge thermal insulation pad 2 and the embedded plate 3 are installed, and the double-layer fixing nut 4 is tightened and fixed.
[0033] The thickness of the first heat-breaking bridge thermal insulation pad 2 is determined according to the design required outer wall thermal insulation layer 12, and the sum of the thicknesses of the first heat-breaking bridge thermal insulation pad 2 and the embedded plate 3 is less than or equal to the thickness of the outer wall thermal insulation layer.
[0034] Then, the evacuation steel stair 13 outdoor is installed, the first connecting angle steel 5 is provided with a reserved bolt connecting hole, and is welded and connected with the embedded plate 3.
[0035] The second connecting angle steel 6 is provided with bolt connecting holes and is welded to the steel column 8 of the evacuation steel stair 13.
[0036] The second heat break bridge heat insulation pad 9 is installed on the first connecting angle steel 5, and then the connecting steel plate 7 is connected to the first connecting angle steel 5 by high-strength bolts 10.
[0037] The connecting steel plate 7 is connected to the second connecting angle steel 6 by high-strength bolts 10.
[0038] At this point, the evacuation steel stair 13 outside is connected and installed to the main body of the nearly zero-energy building by the heat break bridge, and the utility model can simplify the construction process and reduce the construction cost.
[0039] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments are modified, or some or all of the technical features are replaced, without making the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A near zero energy building outdoor evacuation steel stair connection structure, characterized in that, The utility model relates to a kind of near zero energy consumption building construction, including: Embedded steel bar (1), first heat insulation bridge insulation pad (2), embedded plate (3), first connecting angle steel (5), second connecting angle steel (6), connecting steel plate (7) and second heat insulation bridge insulation pad (9); The embedded steel bar (1) is embedded in the outer wall structural member (11) of near zero energy consumption building main body;The first heat insulation bridge insulation pad (2) and embedded plate (3) are fixed on the embedded steel bar (1), and the first heat insulation bridge insulation pad (2) is tightly attached to the surface of outer wall structural member (11);The first connecting angle steel (5) is fixed on the embedded plate (3). The second connecting angle steel (6) is fixed on the steel column (8) of the steel staircase (13);The second connecting angle steel (6) is fixedly connected with one end of connecting steel plate (7);The other end of connecting steel plate (7) is connected with first connecting angle steel (5);Second heat insulation bridge insulation pad (9) is arranged on the first connecting angle steel (5), and the second heat insulation bridge insulation pad (9) is located between the first connecting angle steel (5) and connecting steel plate (7).
2. The near zero energy building outdoor evacuation steel stair connection structure according to claim 1, characterized in that, The first heat insulation bridge insulation pad (2) and second heat insulation bridge insulation pad (9) are made of polyurethane material.
3. The near zero energy building outdoor evacuation steel stair connection structure according to claim 1, characterized in that, The outer wall structural member (11) adopts reinforced concrete structure;The surface of outer wall structural member (11) is provided with outer wall insulation layer (12). The sum of the thickness of the first heat insulation bridge insulation pad (2) and embedded plate (3) is less than or equal to the thickness of outer wall insulation layer (12).
4. The near zero energy building outdoor evacuation steel stair connection structure according to claim 3, characterized in that, The embedded steel bar (1) is fixed with the first heat insulation bridge insulation pad (2) and embedded plate (3) by a plurality of fixed nuts (4).
5. The near zero energy building outdoor evacuation steel stair connection structure according to claim 1, wherein, The connecting steel plate (7) and the first connecting angle steel (5) and the connecting steel plate (7) and the second connecting angle steel (6) are fixedly connected by a plurality of bolts (10) respectively.
6. The near zero energy building outdoor evacuation steel stair connection structure according to claim 1, wherein, The embedded steel bar (1) and embedded plate (3) are made of stainless steel material;The first connecting angle steel (5), second connecting angle steel (6) and connecting steel plate (7) are made of stainless steel material.
7. The near zero energy building outdoor evacuation steel stair connection structure according to claim 1, wherein, The steel staircase (13) is made of Q355 steel material, and the steps and handrails of the steel staircase (13) are wrapped with fireproof material.
8. The near zero energy building outdoor evacuation steel stair connection structure of claim 1, wherein, A sealing layer is arranged between the first heat insulation bridge insulation pad (2) and the embedded plate (3).