A connection node and construction method for a special-shaped precast high-strength concrete external wall hanging panel

Abstract

The present invention discloses a connection node and a construction method for a special-shaped precast high-strength concrete external wall panel, belonging to the technical field of the connection between a wall panel and a steel beam. The connection node includes an external wall panel, a steel beam, an upper hanging component, and a lower supporting component. The upper hanging component includes a first connecting piece, a second connecting piece, and a connecting bolt. The first connecting piece is arranged on the steel beam. The second connecting piece is arranged on the external wall panel and is connected to the first connecting piece through the connecting bolt. The lower supporting component includes a support, a first mounting piece, a second mounting piece, and a connecting bolt. The support is arranged on the steel beam. The first mounting piece is fixedly arranged on the support. The second mounting piece is arranged on the external wall panel. The present invention can realize the two connections of hanging and supporting for the upper and lower two external wall panels at the same position of the steel beam, ensure that the upper hanging point and the lower supporting point are on the same axis, improve the construction quality, and avoid adding a bracket on the steel beam, reducing the difficulty of space treatment for the later connection between the external wall panel and the steel beam.

Description

Technical Field

[0001] The present invention belongs to the technical field of the connection between wall panels and steel beams, and particularly relates to a connection node and construction method for a special-shaped precast high-strength concrete external wall panel. Background Art

[0002] In recent years, steel structure buildings have been widely used in civil buildings and factory building construction, and steel structures have shown a particularly important stance in the field of architecture. The precast external wall panels used in steel structure buildings are mostly ALC wall panels and ordinary precast concrete wall panels. The external finishes of these two types of wall panels are generally flat, and it is difficult to precast different shapes. With the improvement of the pursuit of building quality, the traditional flat facade can no longer meet people's aesthetic needs for the building appearance, and the building facades with local concavities and convexities are increasingly popular among the public, and special-shaped precast high-strength concrete external wall panels have emerged as the times require.

[0003] In the existing installation methods of external wall panels, in order to achieve the building appearance with concavities and convexities on the facade, the upper and lower connection points of the external wall panel cannot be directly connected to the steel beam, and a transition connection with the corbel protruding from the steel beam is required. The connection between the external wall panel and the corbel all adopts the connection method of angle steel and embedded bolts, and the upper and lower connection points of the external wall panel are not on the same axis.

[0004] When the external wall panel is a special-shaped precast external wall panel, due to the uneven distribution of its gravity, using the above traditional installation means, the centroid transfer of the external wall panel is not concentric, resulting in difficulty in adjusting the verticality and installation deviation; moreover, the shapes of special-shaped precast external wall panels are mostly irregular, and the method of adding corbels to the steel beam will lead to greater difficulty in the spatial treatment of the connection between the external wall panel and the steel beam in the later stage. Summary of the Invention

[0005] The purpose of the present invention is to provide a connection node and construction method for a special-shaped precast high-strength concrete external wall panel to solve the problems that it is difficult to adjust the verticality and installation deviation of a special-shaped precast external wall panel by the traditional installation method, and the spatial treatment of the connection between the external wall panel and the steel beam is difficult.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: [[ID=

[23]

[0007] A connection node and construction method for a special-shaped precast high-strength concrete external wall panel, including an external wall panel, a steel beam, an upper hanging component and a lower supporting component;

[0008] The upper hanging component includes a first connecting member, a second connecting member and a connecting bolt; the first connecting member is arranged on the steel beam; the second connecting member is arranged on the external wall panel and is connected to the first connecting member through the connecting bolt;

[0009] The lower support assembly includes a support, a first mounting member, a second mounting member, and a connecting bolt; the support is arranged on the steel beam; the first mounting member is fixedly arranged on the support; the second mounting member is arranged on the external wall panel and is connected to the first mounting member through the connecting bolt;

[0010] The first connecting member and the support are arranged at the same position on the steel beam, so that the upper hanging point and the lower supporting point of the external wall panel are on the same axis.

[0011] Further, the first connecting member is an angle steel, including a horizontal plate and a vertical plate connected to each other; the horizontal plate is fixedly connected to the steel beam; a vertical waist-shaped hole is opened on the vertical plate to provide space for the vertical movement of the connecting bolt.

[0012] Further, the second connecting member includes a buried plate, an internal thread sleeve, and an anchor ring; the buried plate is arranged on the upper part of the external wall panel through the anchor ring; the internal thread sleeve is arranged inside the external wall panel and is fixedly connected to the buried plate; the connecting bolt is threadedly connected to the internal thread sleeve.

[0013] Further, the upper hanging assembly further includes a reinforcing bolt, and the reinforcing bolt is arranged inside the external wall panel and inside the anchor ring.

[0014] Further, the support includes legs and a support plate; the legs are symmetrically arranged on both sides of the horizontal plate of the first connecting member; the support plate is fixedly arranged on the top of the legs.

[0015] Further, the first mounting member is an angle steel, including a flat plate and a vertical plate connected to each other; a vertical waist-shaped hole is opened on the vertical plate to provide space for the vertical movement of the connecting bolt.

[0016] Further, the second mounting member includes a buried plate, an internal thread sleeve, and anchor bars; the buried plate is arranged at the lower part of the external wall panel through the anchor bars; the internal thread sleeve is arranged inside the external wall panel and is fixedly connected to the buried plate, and the connecting bolt is threadedly connected to the internal thread sleeve.

[0017] Further, the lower support assembly further includes a fixing bolt, horizontal waist-shaped holes are opened on the support plate of the support and the flat plate of the first mounting member, and the fixing bolt is arranged in the two horizontal waist-shaped holes to realize the connection between the support and the first mounting member.

[0018] Further, the lower support assembly further includes an adjusting bolt, a reserved hole is opened on the support plate of the support, and a nut is arranged corresponding to the reserved hole. The adjusting bolt is arranged vertically, its bottom is threadedly connected to the nut, and its top abuts against the bottom of the external wall panel.

[0019] A construction method for a connection node of a special-shaped precast high-strength concrete external wall panel includes the following steps:

[0020] Step 1: Prefabricate each component and transport it to the construction site. Then, locate the upper hanging points and lower supporting points of the external wall panel on the steel beam.

[0021] Step 2: Install the first connecting piece on the steel beam.

[0022] Step 3: Install the support and the first installation piece on the steel beam.

[0023] Step 4: Install the external wall panel. First, slowly lower the external wall panel in place. Then, connect the first connecting piece and the second connecting piece through connecting bolts. After that, adjust the verticality of the external wall panel and connect the first installation piece and the second installation piece through connecting bolts. Then, finely adjust the adjusting bolts. Finally, weld and fix the fixing bolts.

[0024] Step 5: Repeat the above steps until the overall construction is completed.

[0025] The present invention has the following beneficial effects:

[0026] 1. For the connection node and construction method of the special-shaped precast high-strength concrete external wall panel provided by the present invention, by opening waist-shaped holes on the support, the first connecting piece and the first installation piece, the vertical freedom degree and the horizontal freedom degree at the connection are released. When the structure generates interlayer deformation, movement is achieved through the deformation form of forced rotation, and the internal force of the external wall panel is released. At the same time, during the installation process, horizontal and vertical fine adjustment of the external wall panel can be realized, ensuring the installation quality of the external wall panel.

[0027] 2. For the connection node and construction method of the special-shaped precast high-strength concrete external wall panel provided by the present invention, it can achieve two types of connections, namely hanging and supporting, for the upper and lower external wall panels at the same position on the steel beam, ensuring that the upper hanging points and the lower supporting points are on the same axis, improving the construction quality and simplifying the installation of the external wall panel; and avoiding adding corbels on the steel beam, being able to better adapt to the shape of the special-shaped precast external wall panel, reducing the difficulty of spatial treatment for the connection between the external wall panel and the steel beam in the later stage.

[0028] 3. For the connection node and construction method of the special-shaped precast high-strength concrete external wall panel provided by the present invention, the external wall panel adopts a special-shaped precast high-strength concrete wall panel, and the shape is integrally precast in the factory, which can achieve diverse architectural effects on the exterior facade. The external wall panel is lightweight and high-strength, solving the problem of the relatively large self-weight of the traditional external wall panel. Description of the Drawings

[0029] Figure 1 It is a schematic diagram of the overall structure of the connection node related to the present invention;

[0030] Figure 2 It is an installation schematic diagram of the first connecting piece related to the present invention;

[0031] Figure 3Installation schematic diagram of the first mounting part involved in the present invention;

[0032] Figure 4 Structural schematic diagram of the first connecting part involved in the present invention;

[0033] Figure 5 Structural schematic diagram of the support involved in the present invention;

[0034] Figure 6 Structural schematic diagram of the first mounting part involved in the present invention.

[0035] In the figure: 1 - external wall panel, 2 - steel beam, 3 - upper hanging component, 31 - first connecting part, 32 - second connecting part, 33 - connecting bolt, 34 - reinforcement bolt, 4 - lower supporting component, 41 - support, 42 - first mounting part, 43 - second mounting part, 44 - fixing bolt, 45 - adjusting bolt. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] As Figures 1-3 shown, a special-shaped precast high-strength concrete external wall panel connection node and construction method provided by the present invention include an external wall panel 1, a steel beam 2, an upper hanging component 3 and a lower supporting component 4; the upper hanging component 3 includes a first connecting part 31, a second connecting part 32 and a connecting bolt 33; the first connecting part 31 is arranged on the steel beam 2; the second connecting part 32 is arranged on the external wall panel 1 and is connected to the first connecting part 31 through the connecting bolt 33; the lower supporting component 4 includes a support 41, a first mounting part 42, a second mounting part 43 and a connecting bolt 33; the support 41 is arranged on the steel beam 2; the first mounting part 42 is fixedly arranged on the support 41; the second mounting part 43 is arranged on the external wall panel 1 and is connected to the first mounting part 42 through the connecting bolt 33. The upper hanging component 3 and the lower supporting component 4 cooperate with each other to realize the hanging and supporting connections of the upper and lower two external wall panels 1 at the same position of the steel beam 2, and can ensure that the upper hanging point (the connection position between the external wall panel 1 and the upper hanging component 3) and the lower supporting point (the connection position between the external wall panel 1 and the lower supporting component 4) are on the same axis, improving the construction quality and simplifying the installation of the external wall panel 1.

[0038] The external wall panel 1 is a special-shaped precast high-strength concrete wall panel.

[0039] The steel beam 2 is preferably an H-shaped steel beam.

[0040] As shown Figure 4 in the figure, the first connecting member 31 is an angle steel, including a horizontal plate and a vertical plate connected to each other. The horizontal plate of the first connecting member 31 is welded to the upper flange plate of the H-shaped steel beam. A vertical waist-shaped hole is formed on the vertical plate to provide space for the vertical movement of the connecting bolt 33, thereby realizing the height fine adjustment of the second connecting member 32. The second connecting member 32 includes a buried plate, an internal thread sleeve and an anchor ring; the buried plate is arranged on the upper part of the hanging wall panel 1 through the anchor ring; the internal thread sleeve is arranged inside the hanging wall panel 1 and is fixedly connected to the buried plate; the connecting bolt 33 is threadedly connected to the internal thread sleeve, thereby realizing the stable connection between the first connecting member 31 and the second connecting member 32. Preferably, the anchor ring is a steel bar ring, and two are symmetrically arranged.

[0041] The upper hanging component 3 further includes a reinforcing bolt 34. The reinforcing bolt 34 is arranged inside the hanging wall panel 1 and inside the anchor ring to further fix the position of the anchor ring and prevent the second connecting member 32 from falling off the hanging wall panel 1.

[0042] As shown Figure 5 in the figure, the support 41 includes a support leg and a support plate. The support legs are symmetrically arranged on both sides of the horizontal plate of the first connecting member 31; the support plate is fixedly arranged on the top of the support leg, and a horizontal waist-shaped hole is formed thereon. The length direction of the horizontal waist-shaped hole is parallel to the plane where the hanging wall panel 1 is located. As shown Figure 6 in the figure, the first mounting member 42 is an angle steel, including a flat plate and a vertical plate connected to each other; a vertical waist-shaped hole is formed on the vertical plate to provide space for the vertical movement of the connecting bolt 33, thereby realizing the height fine adjustment of the second mounting member 43. Preferably, stiffening ribs are arranged on the flat plate of the first mounting member 42. The stiffening ribs are vertically arranged and connected to the vertical plate. Two stiffening ribs are symmetrically arranged to increase the structural strength of the first mounting member 42. The second mounting member 43 includes a buried plate, an internal thread sleeve and anchor bars; the buried plate is arranged at the lower part of the hanging wall panel 1 through the anchor bars; the internal thread sleeve is arranged inside the hanging wall panel 1 and is fixedly connected to the buried plate, and the connecting bolt 33 is threadedly connected to the internal thread sleeve, thereby realizing the stable connection between the first mounting member 42 and the second mounting member 43. Preferably, the ends of the anchor bars are set as hook-shaped and are arranged at intervals to enhance the anchoring strength.

[0043] The lower supporting component 4 further includes a fixing bolt 44. Horizontal waist-shaped holes are formed on the support plate of the support 41 and on the flat plate of the first mounting member 42. The fixing bolt 44 is arranged in the two horizontal waist-shaped holes to realize the connection between the support 41 and the first mounting member 42. Through the two horizontal waist-shaped holes, space for the horizontal movement of the fixing bolt 44 is provided, thereby realizing the horizontal position adjustment of the first mounting member 42.

[0044] The lower support assembly 4 further includes an adjusting bolt 45. A reserved hole is formed on the support plate of the support 41, and a nut is provided corresponding to the reserved hole. The adjusting bolt 45 is arranged vertically, its bottom is threadedly connected to the nut, and its top abuts against the bottom of the external wall panel 1, which can cooperate with the height adjustment of the external wall panel 1 to enhance the supporting capacity of the lower support assembly 4. Preferably, a backing plate is arranged between the adjusting bolt 45 and the external wall panel 1, and the backing plate is fixed on the top of the adjusting bolt 45 to prevent structural damage to the external wall panel 1.

[0045] A construction method for the connection node of a special-shaped precast high-strength concrete external wall panel includes the following steps:

[0046] Step 1: Prefabricate the special-shaped external wall panel 1 with the second connecting piece 32 and the second mounting piece 43 and other components in the factory, transport them to the construction site, and then locate the upper hanging points and lower supporting points of each external wall panel 1 on the steel beam 2 according to the building axis;

[0047] Step 2: Install the first connecting piece 31 on the steel beam 2, that is, weld the transverse plate of the first connecting piece 31 to the upper flange plate of the steel beam 2 in a three-sided welding manner;

[0048] Step 3: Install the support 41 and the first mounting piece 42 on the steel beam 2, that is, weld the legs of the support 41 to the upper flange plate of the steel beam 2, and then fix the first mounting piece 42 at a suitable position on the support 41 through the fixing bolt 44;

[0049] Step 4: Install the external wall panel 1. First, slowly lower the external wall panel 1 in place; then, connect the first connecting piece 31 and the second connecting piece 32 through the connecting bolt 33; after that, adjust the verticality of the external wall panel 1, and connect the first mounting piece 42 and the second mounting piece 43 through the connecting bolt 33; then, control the adjusting bolt 45 to support the external wall panel 1; finally, weld and fix the fixing bolt 44;

[0050] Step 5: Repeat the above steps until the overall construction is completed.

[0051] Finally, it should be noted that: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special-shaped prefabricated high-strength concrete exterior wall panel connection node, characterized in that: It comprises an external wall panel (1), a steel beam (2), an upper hanging component (3) and a lower supporting component (4); The upper hanging assembly (3) comprises a first connecting member (31), a second connecting member (32) and a connecting bolt (33); the first connecting member (31) is arranged on the steel beam (2); the second connecting member (32) is arranged on the external wall panel (1) and is connected to the first connecting member (31) via the connecting bolt (33); The lower support assembly (4) comprises a support (41), a first mounting member (42), a second mounting member (43) and a connecting bolt (33); the support (41) is arranged on the steel beam (2); the first mounting member (42) is fixed on the support (41); the second mounting member (43) is arranged on the external wall panel (1) and is connected to the first mounting member (42) via the connecting bolt (33); The first connecting member (31) and the support (41) are arranged at the same position on the steel beam (2), so that the upper hanging point and the lower supporting point of the external wall panel (1) are located on the same axis.

2. The special-shaped prefabricated high-strength concrete exterior wall panel connection node according to claim 1, characterized in that: The first connecting member (31) is an angle steel, comprising a horizontal plate and a vertical plate connected to each other; the horizontal plate is fixedly connected to the steel beam (2); and a vertical waist-shaped hole is provided on the vertical plate to provide space for vertical movement of the connecting bolt (33).

3. The special-shaped prefabricated high-strength concrete exterior wall panel connection node according to claim 1, characterized in that: The second connecting member (32) comprises a buried plate, an internally threaded sleeve and an anchor ring; the buried plate is arranged on the upper part of the external wall panel (1) via the anchor ring; the internally threaded sleeve is arranged in the external wall panel (1) and is fixedly connected to the buried plate; the connecting bolt (33) is threadedly connected to the internally threaded sleeve.

4. The special-shaped prefabricated high-strength concrete exterior wall panel connection node according to claim 3, characterized in that: The upper hanging assembly (3) further comprises a reinforcing bolt (34), wherein the reinforcing bolt (34) is arranged in the external wall panel (1) and is located inside the anchor ring.

5. The special-shaped prefabricated high-strength concrete exterior wall panel connection node according to claim 2, characterized in that: The support (41) comprises a support leg and a support plate; the support legs are symmetrically arranged on both sides of the transverse plate of the first connecting member (31); and the support plate is fixed on the top of the support legs.

6. The special-shaped prefabricated high-strength concrete exterior wall panel connection node according to claim 5, characterized in that: The first mounting member (42) is an angle steel, comprising a flat plate and a vertical plate connected to each other; a vertical waist-shaped hole is provided on the vertical plate to provide space for vertical movement of the connecting bolt (33).

7. The special-shaped prefabricated high-strength concrete exterior wall panel connection node according to claim 1, characterized in that: The second mounting member (43) comprises an embedded plate, an internally threaded sleeve, and anchor bars; the embedded plate is arranged at the lower portion of the external wall panel (1) via the anchor bars; the internally threaded sleeve is arranged in the external wall panel (1) and is fixedly connected to the embedded plate, and the connecting bolt (33) is threadedly connected to the internally threaded sleeve.

8. The special-shaped prefabricated high-strength concrete exterior wall panel connection node according to claim 6, characterized in that: The lower support assembly (4) further includes a fixing bolt (44), and transverse waist-shaped holes are provided on the support plate of the support (41) and the flat plate of the first mounting member (42). The fixing bolt (44) is arranged in the two transverse waist-shaped holes to achieve the connection between the support (41) and the first mounting member (42).

9. The special-shaped prefabricated high-strength concrete exterior wall panel connection node according to claim 5, characterized in that: The lower support assembly (4) further includes an adjusting bolt (45). A reserved hole is provided on the support plate of the support (41), and a nut is provided at the corresponding reserved hole. The adjusting bolt (45) is vertically arranged, with its bottom being threadedly connected to the nut and its top abutting against the bottom of the external wall panel (1).

10. A construction method for connecting nodes of special-shaped prefabricated high-strength concrete exterior wall panels according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Prefabricate the components and transport them to the construction site, then locate the upper attachment point and lower support point of the external wall panel (1) on the steel beam (2); Step 2: Install the first connecting member (31) on the steel beam (2); Step 3: Install the support (41) and the first mounting member (42) on the steel beam (2); Step 4: Install the external wall panel (1). First, slowly place the external wall panel (1). Then, connect the first connecting member (31) and the second connecting member (32) via the connecting bolt (33). Then, adjust the verticality of the external wall panel (1) and connect the first mounting member (42) and the second mounting member (43) via the connecting bolt (33). Then, fine-tune the adjusting bolt (45). Finally, weld and secure the fixing bolt (44). Step 5: Repeat the above steps until the overall construction is completed.

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