A vertically slidable module-to-concrete core tube connection structure

Abstract

The application discloses a module-to-concrete core tube connecting structure capable of vertical sliding, which comprises a module-to-concrete core tube joint and a bolt-shear cone joint, wherein the module-to-concrete core tube joint comprises a pre-buried joint box, a horizontal connecting plate and a pre-buried anchor rod, the pre-buried joint box is connected with the pre-buried anchor rod and is pre-buried in the concrete core tube, and the bolt-shear cone joint is a module-to-module connecting form. The horizontal connecting plate is provided with an opening, a shear cone hole and a bolt hole. The pre-buried joint box comprises a joint box shell, clamping sliding blocks, locking sliding blocks and locking bolts. When the joint is installed, the locking bolts are screwed into the threaded holes of the locking sliding blocks, the locking sliding blocks are driven to move and press the clamping sliding blocks, the two clamping sliding blocks are relatively slid to move close to each other, the flanges are clamped into the opening of the horizontal connecting plate, and the clamping of the horizontal connecting plate is realized. The connecting structure is convenient to assemble and disassemble, can be freely vertically slid, and can be matched with installation errors.

Description

Technical Field

[0001] This invention relates to the field of modular steel structure building technology, and in particular to a vertically sliding module-to-concrete core tube connection structure. Background Technology

[0002] The modular-concrete core composite structure system is a widely used structural system in modular buildings, especially high-rise modular buildings. In this system, the stacked modules are designed to bear only their own weight loads, while the lateral loads on the building are transferred to the concrete core through the connections between the modules and the core, placing high demands on the horizontal load transfer performance of the joints. Furthermore, under seismic loading, due to the deformation coordination between the stacked modules and the core, the module-to-core joints experience vertical shear, necessitating the release of vertical constraints. Currently, the available module-to-core connections are very limited, most requiring on-site welding and failing to release vertical constraints. Therefore, there is an urgent need for a module-to-core connection structure that is easy to install and dismantle, allows free vertical sliding, and can accommodate accumulated installation errors during construction. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides a vertically sliding module-to-concrete core tube connection structure. This connection structure is characterized by convenient installation and disassembly, free vertical sliding capability, and the ability to accommodate accumulated installation errors during construction.

[0004] The vertically sliding module-to-concrete core tube connection structure of the present invention includes a module-to-concrete core tube node and a bolt-shear cone node. The module-to-concrete core tube node includes a pre-embedded node box, a horizontal connecting plate, and a pre-embedded anchor rod. The back of the pre-embedded node box is connected to the pre-embedded anchor rod, and both are pre-embedded in the concrete core tube. The panel on the side of the pre-embedded node box with the opening is exposed on the surface of the concrete core tube.

[0005] Furthermore, the horizontal connecting plate is provided with notches, shear cone openings, and bolt openings.

[0006] Furthermore, the bolt-shear cone node includes an upper corner piece, a lower corner piece, a module, a floor beam, a ceiling beam, a high-strength bolt, a bolt washer, a high-strength nut, and a shear cone; the upper corner piece is horizontally connected to the floor beam and vertically connected to the module column; the lower corner piece is horizontally connected to the ceiling beam and vertically connected to the module column; the horizontal connecting plate is clamped between the upper and lower corner pieces; the shear cone passes through the shear cone hole and connects to the horizontal connecting plate; the high-strength bolt passes through the bolt washer and bolt hole and connects to the high-strength nut, and the two are tightened.

[0007] Furthermore, the pre-embedded node box includes a node box shell, a clamping slider, a locking slider, and a locking bolt; the clamping slider and the locking slider are located inside the node box shell, and the height of the clamping slider and the locking slider is approximately equal to the height of the internal cavity of the node box shell; the clamping slider can only slide horizontally along the length direction inside the node box shell; the locking slider can only slide horizontally along the width direction inside the node box shell; the clamping slider and the locking slider each have an inclined surface that fits against each other, allowing them to press and slide against each other.

[0008] Furthermore, the clamping slider has a flange, which is sized to match the notch on the horizontal connecting plate and can be inserted into the notch; the locking slider has a threaded hole, and the internal thread can cooperate with the locking bolt.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] In this invention, a clamping slider is used to horizontally clamp the horizontal connecting plate, allowing it to slide freely vertically while its horizontal movement is constrained. This achieves the effect of releasing the vertical constraint between the module and the concrete node. During installation, simply screwing the locking bolt into the threaded hole on the locking slider is sufficient. The relative sliding between the locking slider and the clamping slider clamps the horizontal connecting plate, and the clamping position can be adjusted according to the screwing length of the locking bolt, thus mitigating installation errors. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is a front view of the present invention;

[0013] Figure 3 This is a top view of the horizontal connecting plate in this invention;

[0014] Figure 4 This is a three-dimensional structural diagram of the module-to-concrete core tube node in this invention;

[0015] Figure 5 This is a right view (clamping state) of the module-to-concrete core tube node in this invention;

[0016] Figure 6 for Figure 5 HH cross-sectional view (unlocked state);

[0017] Figure 7 for Figure 5 HH cross-sectional view (clamping state);

[0018] Figure 8This is a three-dimensional structural diagram of the slider clamping mechanism in this invention;

[0019] Figure 9 This is a three-dimensional structural diagram of the locking slider in this invention.

[0020] Figure label:

[0021] 1-Embedded node box, 2-Horizontal connecting plate, 3-Embedded anchor rod, 4-Bolt-shear cone node, 11-Node box shell, 12-Clamping slider, 13-Locking slider, 14-Locking bolt, 21-Notch, 22-Shear cone opening, 23-Bolt opening, 41-Upper corner piece, 42-Lower corner piece, 43-Module column, 44-Floor beam, 45-Ceiling beam, 46-High-strength bolt, 47-Bolt washer, 48-High-strength nut, 49-Shear cone, 121-Flange, 131-Threaded hole. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 6 As shown, a vertically sliding module-to-concrete core tube connection structure includes a module-to-concrete core tube node and a bolt-shear cone node 4. The module-to-concrete core tube node includes a pre-embedded node box 1, a horizontal connecting plate 2, and a pre-embedded anchor rod 3. The back of the pre-embedded node box 1 is connected to the pre-embedded anchor rod 3, and both are pre-embedded in the concrete core tube. The panel on the side of the pre-embedded node box 1 with an opening is exposed on the surface of the concrete core tube. The pre-embedded anchor rod 3 can prevent the pre-embedded node box 1 from being pulled out of the concrete.

[0024] The horizontal connecting plate 2 has a notch 21, a shear cone opening 22, and a bolt opening 23; the notch 21 is the boundary of the horizontal connecting plate 2, such as... Figure 3 As shown, the left side of the notch 21 can be just held by the clamping slider 12 after it is locked, and the right side of the notch 21 has a shear cone hole 22 and a bolt hole 23, which can be passed through by the shear cone 49 and the high-strength bolt 46, respectively.

[0025] The bolt-shear cone node 4 includes an upper corner piece 41, a lower corner piece 42, a modular column 43, a floor beam 44, a ceiling beam 45, a high-strength bolt 46, a bolt washer 47, a high-strength nut 48, and a shear cone 49. The upper corner piece 41 is horizontally connected to the floor beam 44 and vertically connected to the modular column 43. The lower corner piece 42 is horizontally connected to the ceiling beam 45 and vertically connected to the modular column 43. The horizontal connecting plate 2 is clamped between the upper corner piece 41 and the lower corner piece 42. The shear cone 49 passes through the shear cone opening 22 and connects to the horizontal connecting plate 2. The high-strength bolt 46 passes through the bolt washer 47 and the bolt opening 23 and connects to the high-strength nut 48. The two are tightened, so that the horizontal connecting plate 2 is fixed to the bolt-shear cone node 4.

[0026] The pre-embedded node box 1 includes a node box shell 11, a clamping slider 12, a locking slider 13, and a locking bolt 14. The clamping slider 12 and the locking slider 13 are located inside the node box shell 11. The height of the clamping slider 12 and the locking slider 13 is approximately equal to the height of the internal cavity of the node box shell 11, so that the clamping slider 12 and the locking slider 13 can only slide in the horizontal plane and cannot rotate. The clamping slider 12 can only slide horizontally along the length direction inside the node box shell 11. The locking slider 13 can only slide horizontally along the width direction inside the node box shell 11. The clamping slider 12 and the locking slider 13 each have an inclined surface that fits against each other, allowing them to squeeze and slide against each other. Lubricant can be applied to the contact surfaces of the two as needed to facilitate sliding.

[0027] The clamping slider 12 has a flange 121, which is sized to fit into the notch 21 on the horizontal connecting plate 2, thereby clamping the horizontal connecting plate 2 and preventing it from being pulled out of the pre-embedded node box 1; the locking slider 13 has a threaded hole 131, and the internal thread can cooperate with the locking bolt 14.

[0028] like Figure 6 As shown, the module to the concrete core tube node is in the unlocked state. At this time, the locking bolt 14 is not screwed into the threaded hole 131 of the locking slider 13. The locking slider 13 is at the position farthest from the panel on the side with the opening of the pre-embedded node box 1. The two locking sliders 13 are in the state of being farthest apart. When the two locking sliders 13 are farthest apart, the distance between their flanges 121 is enough for the horizontal connecting plate 2 to be horizontally placed into the node box shell 11.

[0029] like Figure 7As shown, when it is necessary to connect the horizontal connecting plate 2 to the pre-embedded node box 1, first place the side of the horizontal connecting plate with the notch 21 horizontally into the outer shell 11 of the node box, and then gradually screw the two locking bolts 14 into the threaded holes 131 of the locking sliders 13 on both sides, and drive the locking sliders 13 to gradually move towards the panel on the side of the pre-embedded node box 1 with the opening; during this process, the inclined surface of the locking slider 13 presses against the inclined surface of the clamping slider 12, and the two slide relative to each other, so that the clamping slider 12 slides horizontally in the width direction inside the outer shell 11 of the node box, and the clamping sliders 12 on both sides move closer to each other until the flange 121 on the clamping slider 12 is engaged in the notch 21 on the horizontal connecting plate 2, and stop screwing in the locking bolts 14, thus completing the clamping of the horizontal connecting plate 2.

[0030] like Figure 2 As shown, when the horizontal connecting plate 2 and the pre-embedded node box 1 are connected, i.e., when the module to concrete core tube node installation is completed, the bolt-shear cone node 4 is installed. The shear cone 49 is placed in the shear cone hole 22 on the horizontal connecting plate 2, and then the upper corner piece 41 is lowered and clamped together with the lower corner piece 42 to hold the horizontal connecting plate 2. Finally, the high-strength bolt 46 is passed through the bolt washer 47 and placed in the bolt hole 23, and the high-strength nut 48 is tightened and a pre-tightening force is applied, thereby completing the installation of the bolt-shear cone node 4. After the installation of the module to concrete core tube node and the bolt-shear cone node 4, the installation work of the present invention is completed. When the bolt-shear cone node 4 and the module to concrete core tube node slide vertically, the horizontal connecting plate can slide freely vertically in the cavity formed by the node box shell 11 and the clamping slider 12. When the bolt-shear cone node 4 and the module to concrete core tube node are subjected to horizontal tension or shear, the clamping constraint of the clamping slider 12 on the horizontal connecting plate 2 will provide a reliable horizontal connection.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vertically sliding module-to-concrete core tube connection structure, comprising module-to-concrete core tube nodes and bolt-shear cone nodes (4), characterized in that: The module-to-concrete core tube node includes a pre-embedded node box (1), a horizontal connecting plate (2), and a pre-embedded anchor rod (3); the back of the pre-embedded node box (1) is connected to the pre-embedded anchor rod (3), and both are pre-embedded in the concrete core tube, with the panel on the side of the pre-embedded node box (1) with the opening exposed on the surface of the concrete core tube; wherein: The horizontal connecting plate (2) is provided with a notch (21), a shear cone opening (22), and a bolt opening (23); the notch (21) is the boundary of the horizontal connecting plate (2), the part on the left side of the notch (21) is just clamped by the clamping slider (12) after locking, and the part on the right side of the notch (21) is provided with a shear cone opening (22) and a bolt opening (23), which allow the shear cone (49) and the high-strength bolt (46) to pass through respectively; The bolt-shear cone node (4) includes an upper corner piece (41), a lower corner piece (42), a module column (43), a floor beam (44), a ceiling beam (45), a high-strength bolt (46), a bolt washer (47), a high-strength nut (48), and a shear cone (49); the upper corner piece (41) is horizontally connected to the floor beam (44) and vertically connected to the module column (43); the lower corner piece (42) is horizontally connected to the ceiling beam (45) and vertically connected to the module column (43); the horizontal connecting plate (2) is clamped between the upper corner piece (41) and the lower corner piece (42); the shear cone (49) passes through the shear cone opening (22) and connects to the horizontal connecting plate (2); The pre-embedded node box (1) includes a node box shell (11), a clamping slider (12), a locking slider (13), and a locking bolt (14); the clamping slider (12) and the locking slider (13) are located inside the node box shell (11); the clamping slider (12) can only slide horizontally along the length direction inside the node box shell (11); the locking slider (13) can only slide horizontally along the width direction inside the node box shell (11).

2. The connection structure according to claim 1, characterized in that: The high-strength bolt (46) passes through the bolt washer (47), the bolt hole (23) and is connected to the high-strength nut (48), and the two are tightened.

3. The connection structure according to claim 1, characterized in that: The height of the clamping slider (12) and the locking slider (13) is approximately equal to the height of the internal cavity of the node box shell (11).

4. The connection structure according to claim 1, characterized in that: The clamping slider (12) and the locking slider (13) each have an inclined surface that fits against each other, allowing them to squeeze and slide against each other.

5. The connection structure according to claim 1, characterized in that: The clamping slider (12) has a flange (121) that is sized to fit into the notch (21) on the horizontal connecting plate (2).

6. The connection structure according to claim 1, characterized in that: The locking slider (13) has a threaded hole (131) and the internal thread is engaged with the locking bolt (14).

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