A joint structure between the main body and the roof of the connecting corridor
The joint structure design with elastic buffer and multiple waterproofing features solves the problems of poor deformation adaptability and weak waterproofing performance in traditional joint designs, improves construction convenience and maintenance friendliness, and is suitable for large spans and areas sensitive to ground fissures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING CONSTRUCTION ENGINEERING GROUP CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional designs for connecting corridors to the main structure suffer from poor deformation adaptability, weak waterproofing performance, complex construction, and difficult maintenance.
The joint structure design features elastic buffering, sliding adjustment, and multiple waterproofing, including an arc-shaped plate, a joint connecting plate, an installation plate, and an outer decorative plate. The arc-shaped groove provides deformation space, and the elastic joint connecting plate slides within the retaining strip. Combined with a double-layer symmetrical sealing structure, the joint insulation layer is waterproofed simultaneously at the top and bottom, simplifying the installation process.
It achieves adaptability to thermal expansion and contraction, shear and tensile displacement, reduces stress concentration, prevents leakage, and simplifies construction accuracy requirements and maintenance costs.
Smart Images
Figure CN224431675U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction engineering technology, and in particular to a joint structure between the main body and the roof of the connecting corridor. Background Technology
[0002] Traditional connecting corridors and main structure joints often employ rigid connections or single seals. These joint types suffer from the following core drawbacks: 1. Poor deformation adaptability: Rigid joints struggle to cope with displacement differences caused by thermal expansion and contraction, wind loads, or earthquakes, easily leading to cracking or leakage. 2. Weak waterproofing system: Relying on a single layer of sealant or simple rolled material, these are prone to aging and failure under long-term exposure, and the drainage path at the joint is unclear, making water accumulation and seepage easy. 3. High construction and maintenance costs: Precise alignment is required during installation; construction errors can easily lead to seal failure. 4. Subsequent repairs require damage to the finishing layer, resulting in long repair cycles and high costs. Existing improvements, such as expansion joints or sliding steel plates, alleviate some problems, but fail to achieve a systematic integration of deformation adaptability, waterproofing, ease of construction, and maintenance friendliness. Therefore, an integrated joint structure is urgently needed to fundamentally improve overall performance. Utility Model Content
[0003] The purpose of this utility model is to provide a joint structure between the main body and the roof of the connecting corridor, which aims to solve the technical problems of poor deformation adaptability, high construction precision requirements, and difficult maintenance of the joint between the traditional connecting corridor and the main body structure.
[0004] To achieve the above objectives, the present invention adopts the following technical solution.
[0005] A joint structure between the main structure roof and the connecting corridor roof is provided; it includes a joint insulation layer and a sealing structure; the joint insulation layer fills the joint between the main structure roof and the connecting corridor roof; there are two sealing structures, respectively located at the top and bottom of the joint insulation layer, and the two sealing structures are symmetrical about the horizontal axis of the joint insulation layer; the sealing structure includes an arc-shaped plate, a joint connecting plate, an installation plate, and an outer decorative plate arranged sequentially from the inside to the outside; the arc-shaped plate is set close to the joint insulation layer, and the arc-shaped groove of the arc-shaped plate faces away from the joint insulation layer; one side of the arc-shaped plate is connected to the connecting corridor roof, and the other side of the arc-shaped plate is connected to the main structure roof; expansion joint guards are pressed at both ends of the arc-shaped plate; the joint connecting plate is an elastic plate, connected between the expansion joint guards on both sides; the installation plate is bolted to the outside of the joint connecting plate, and the outer decorative plate is connected to the installation plate by fasteners.
[0006] Preferably, the width of the joint insulation layer is 100mm to 350mm.
[0007] Preferably, the main structure roof is located on top of the main structure and includes a keel frame, a top plate, and a bottom plate; the top surface of the keel frame is a slope, and the bottom surface is a plane; the main structure insulation layer is filled inside the keel frame; the top plate is laid on top of the keel frame, and the bottom plate is laid on the bottom of the keel frame.
[0008] Preferably, the upper and lower parts of the side of the keel frame near the joint are respectively provided with a first connecting plate; the upper and lower parts of the side of the corridor roof near the joint are respectively provided with a second connecting plate; the expansion joint guard is connected to the first or second connecting plate on the corresponding side.
[0009] Preferably, the expansion joint guard is elongated and the vertical cross-section of the expansion joint guard is L-shaped; the vertical edge of the expansion joint guard is located near the main structure roof / connecting corridor roof, and a sealing rod and sealant are filled at the joint between the vertical edge of the expansion joint guard and the main structure roof / connecting corridor roof; a strip groove is provided at the end of the horizontal edge of the expansion joint guard; cylindrical retaining strips are provided on both sides of the joint connecting plate; the retaining strips are engaged in the strip grooves; and diagonal braces are provided between the horizontal and vertical edges of the expansion joint guard.
[0010] Preferably, the roof of the connecting corridor includes a roof panel, a slope-finishing layer, a connecting corridor insulation layer, a waterproof layer, and a finishing layer; a parapet wall is provided at the top edge of the roof panel; and the joint structure between the main structure and the connecting corridor roof is provided between the parapet wall and the main structure roof.
[0011] Compared with the prior art, the present invention has the following features and beneficial effects.
[0012] 1. The main body and the connecting corridor roof joint structure of this utility model systematically solve the problems of deformation coordination and leakage of the connecting corridor joint through the integrated design of elastic buffer + sliding adjustment + multiple waterproofing, filling the gap in the existing technology, and is especially suitable for complex projects with large span, asymmetry and ground crack sensitive areas.
[0013] 2. The arc-shaped plate and the elastic joint connecting plate of this utility model work together. The arc-shaped groove provides deformation space, and the elastic joint connecting plate slides within the strip groove of the expansion joint guard through the locking strip, adapting to thermal expansion and contraction, shear and tensile displacement, and reducing stress concentration. At the same time, the structural design of the expansion joint guard enhances the deformation resistance of the joint edge and prevents the guard from warping due to load.
[0014] 3. The double-layer symmetrical sealing structure of this utility model is installed at the top and bottom of the joint insulation layer for simultaneous waterproofing, preventing water accumulation and leakage. The arc-shaped plate, joint connecting plate, and installation plate are prefabricated and bolted on site, reducing the alignment accuracy requirements. The first and second connecting plates are pre-installed on the main body and the roof of the connecting corridor, simplifying the installation process of the expansion joint edge protection. Attached Figure Description
[0015] The present invention will now be described in further detail with reference to the accompanying drawings.
[0016] Figure 1 This is a schematic diagram of the joint structure between the main body of this utility model and the roof of the connecting corridor.
[0017] Figure 2 This is a schematic diagram of the structure of the keel frame of this utility model, which is provided with a top plate and a bottom plate.
[0018] Figure 3 This is a schematic diagram of the sealing structure connecting the roof of the main structure and the roof of the connecting corridor in this utility model.
[0019] Attached reference numerals: 1 - Main structure roof, 1.1 - Keel frame, 1.1.1 - Top keel, 1.1.2 - Bottom keel, 1.1.3 - Vertical keel, 1.1.4 - Longitudinal keel, 1.2 - Top slab, 1.3 - Bottom slab, 1.4 - Main structure insulation layer, 2 - Connecting corridor roof, 3 - Joint insulation layer, 4 - Curved plate, 5 - Joint connecting plate, 6 - Mounting plate, 7 - Exterior decorative panel, 8 - Expansion joint edge protector, 9 - Bolt, 10 - Main structure, 11 - First connecting plate, 12 - Second connecting plate, 13 - Sealing rod, 14 - Sealant, 15 - Strip groove, 16 - Clip strip, 17 - Roof panel, 18 - Slope finding layer, 19 - Connecting corridor insulation layer, 20 - Waterproof layer, 21 - Finishing layer, 22 - Parapet wall. Detailed Implementation
[0020] like Figure 1-3 As shown, this joint structure between the main structure roof and the connecting corridor roof is located between the main structure roof 1 and the connecting corridor roof 2; it includes a joint insulation layer 3 and a sealing structure; the joint insulation layer 3 fills the joint between the main structure roof 1 and the connecting corridor roof 2; there are two sealing structures, respectively located at the top and bottom of the joint insulation layer 3, and the two sealing structures are symmetrical about the horizontal axis of the joint insulation layer 3; the sealing structure includes an arc-shaped plate 4, a joint connecting plate 5, an mounting plate 6, and an outer decorative plate 7 arranged sequentially from the inside out. The arc-shaped plate 4 is set close to the joint insulation layer 3, and the arc-shaped groove of the arc-shaped plate 4 faces away from the joint insulation layer 3; one side of the arc-shaped plate 4 is connected to the roof of the connecting corridor 2, and the other side of the arc-shaped plate 4 is connected to the roof of the main structure 1; expansion joint guards 8 are pressed at both ends of the arc-shaped plate 4; the joint connecting plate 5 is an elastic plate, which is connected between the expansion joint guards 8 on both sides; the mounting plate 6 is connected to the outside of the joint connecting plate 5 by bolts 9, and the outer decorative plate 7 is connected to the mounting plate 6 by fasteners.
[0021] In this embodiment, in the sealed structure, the side closer to the center of the joint insulation layer 3 is defined as the inner side, and the side farther from the center of the joint insulation layer 3 is defined as the outer side.
[0022] In this embodiment, the width of the joint insulation layer 3 is 100mm~350mm.
[0023] In this embodiment, the main structure roof 1 is located on top of the main structure 10 and includes a keel frame 1.1, a top plate 1.2, and a bottom plate 1.3. The keel frame 1.1 includes a top keel 1.1.1, a bottom keel 1.1.2, a vertical keel 1.1.3, and a longitudinal keel 1.1.4. The top keel 1.1.1 and the bottom keel 1.1.2 are both grid structures and are arranged at intervals along the vertical direction. The top keel 1.1.1 is gradually inclined downward from the middle to the edge of the main structure roof 1. This facilitates rainwater flow to the joints; the top surface of the keel frame 1.1 is a slope, and the bottom surface of the keel frame 1.1 is a plane; the vertical keel 1.1.3 is set between the top keel 1.1.1 and the bottom keel 1.1.2; the longitudinal keel 1.1.4 is connected between the longitudinally adjacent vertical keels 1.1.3; the main structure insulation layer 1.4 is filled inside the keel frame 1.1; the top plate 1.2 is laid on the top of the keel frame 1.1, and the bottom plate 1.3 is laid on the bottom of the keel frame 1.1.
[0024] In this embodiment, the upper and lower parts of the side of the keel frame 1.1 near the joint are respectively provided with first connecting plates 11; the upper and lower parts of the side of the connecting corridor roof 2 near the joint are respectively provided with second connecting plates 12; the expansion joint guard 8 is connected to the first connecting plate 11 or the second connecting plate 12 on the corresponding side. The vertical cross-section of the first connecting plate 11 and the second connecting plate 12 is L-shaped, and the vertical side of the L-shaped plate is connected to the keel frame 1.1 or the connecting corridor roof 2; the first connecting plate 11 is welded to the keel frame 1.1, and the second connecting plate 12 is connected to the parapet wall 22 with screws; the expansion joint guard 8 is connected to the horizontal side of the L-shape. The expansion joint guard 8 is made of aluminum alloy profile.
[0025] In this embodiment, the expansion joint guard 8 is long and narrow, and its vertical cross-section is L-shaped. The vertical edge of the expansion joint guard 8 is located near the main structure roof 1 / connecting corridor roof 2. A sealing rod 13 and sealant 14 are filled at the joint between the vertical edge of the expansion joint guard 8 and the main structure roof 1 / connecting corridor roof 2. A strip groove 15 is provided at the end of the horizontal edge of the expansion joint guard 8. Cylindrical clips 16 are provided on both sides of the joint connecting plate 5. The clips 16 are inserted into the strip grooves 15. Diagonal braces are provided between the horizontal and vertical edges of the expansion joint guard 8.
[0026] In this embodiment, the connecting corridor roof 2 includes a roof panel 17, a slope-finishing layer 18, a connecting corridor insulation layer 19, a waterproof layer 20, and a finishing layer 21; a parapet wall 22 is provided at the top edge of the roof panel 17; the joint structure between the main body and the connecting corridor roof is provided between the parapet wall 22 and the main structure roof 1.
[0027] In this embodiment, the arc-shaped plate 4 is an expansion joint rubber sheet, and the arc-shaped plate 4 includes an arc-shaped plate body and a folded edge; the folded edge is formed by horizontally bending the arc-shaped plate body; the expansion joint guard 8 is pressed onto the folded edge.
[0028] In this embodiment, the main structure insulation layer 1.4 and the joint insulation layer 3 are integrally formed, and the top of the main structure insulation layer 1.4 is higher than the top surface of the joint insulation layer 3, while the bottom surface of the main structure insulation layer 1.4 is lower than the bottom surface of the joint insulation layer 3.
[0029] The above embodiments are not exhaustive examples of specific implementation methods, and other embodiments may also exist. The purpose of the above embodiments is to illustrate the present utility model, rather than to limit the protection scope of the present utility model. All applications derived from simple variations of the present utility model fall within the protection scope of the present utility model.
Claims
1. A joint structure between the main structure roof and the connecting corridor roof, disposed between the main structure roof (1) and the connecting corridor roof (2); characterized in that: It includes a joint insulation layer (3) and a sealing structure; the joint insulation layer (3) fills the joint between the main structure roof (1) and the connecting corridor roof (2); there are two sealing structures, which are respectively set at the top and bottom of the joint insulation layer (3), and the two sealing structures are symmetrical about the horizontal axis of the joint insulation layer (3); the sealing structure includes an arc-shaped plate (4), a joint connecting plate (5), an installation plate (6) and an outer decorative plate (7) arranged sequentially from the inside to the outside; the arc-shaped plate (4) is set close to the joint insulation layer (3), and the arc-shaped plate (4) is set close to the joint insulation layer (3), and the arc-shaped plate (5) is set close to the joint insulation layer (3). The arc-shaped groove of the shaped plate (4) faces away from the joint insulation layer (3); one side of the arc-shaped plate (4) is connected to the roof of the connecting corridor (2), and the other side of the arc-shaped plate (4) is connected to the roof of the main structure (1); expansion joint guards (8) are pressed at both ends of the arc-shaped plate (4); the joint connecting plate (5) is an elastic plate, which is connected between the expansion joint guards (8) on both sides; the mounting plate (6) is connected to the outside of the joint connecting plate (5) by bolts (9); the outer decorative plate (7) is connected to the mounting plate (6) by fasteners.
2. The joint structure between the main body and the roof of the connecting corridor according to claim 1, characterized in that: The width of the joint insulation layer (3) is 100mm~350mm.
3. The joint structure between the main body and the roof of the connecting corridor according to claim 1, characterized in that: The main structure roof (1) is set on top of the main structure (10) and includes a keel frame (1.1), a top plate (1.2) and a bottom plate (1.3); the top surface of the keel frame (1.1) is a slope and the bottom surface is a plane; the main structure insulation layer (1.4) is filled in the keel frame (1.1); the top plate (1.2) is laid on top of the keel frame (1.1) and the bottom plate (1.3) is laid on the bottom of the keel frame (1.1).
4. The joint structure between the main body and the roof of the connecting corridor according to claim 3, characterized in that: The keel frame (1.1) has a first connecting plate (11) on the upper and lower parts of the side near the joint; the corridor roof (2) has a second connecting plate (12) on the upper and lower parts of the side near the joint; the expansion joint guard (8) is connected to the first connecting plate (11) or the second connecting plate (12) on the corresponding side.
5. The joint structure between the main body and the roof of the connecting corridor according to claim 1, characterized in that: The expansion joint guard (8) is long and narrow, and the vertical cross-section of the expansion joint guard (8) is L-shaped. The vertical side of the expansion joint guard (8) is located near the main structure roof (1) / connecting corridor roof (2). The joint between the vertical side of the expansion joint guard (8) and the main structure roof (1) / connecting corridor roof (2) is filled with a sealing rod (13) and sealant (14). The horizontal side of the expansion joint guard (8) is provided with a strip groove (15). The joint connecting plate (5) is provided with cylindrical clips (16) on both sides. The clips (16) are inserted into the strip grooves (15). Diagonal braces are provided between the horizontal and vertical sides of the expansion joint guard (8).
6. The joint structure between the main body and the roof of the connecting corridor according to claim 1, characterized in that: The connecting corridor roof (2) includes a roof panel (17), a slope-finishing layer (18), a connecting corridor insulation layer (19), a waterproof layer (20), and a finishing layer (21); a parapet wall (22) is provided at the top edge of the roof panel (17); the joint structure between the main structure and the connecting corridor roof is provided between the parapet wall (22) and the main structure roof (1).