Bidirectional shear connector for stoplog

Abstract

The utility model discloses a stoplog bi-directional shear connector which comprises a lower shear piece and an upper shear piece, and the lower shear piece comprises a fixing piece and a sliding block arranged on the fixing piece in a sliding mode. The upper anti-shearing piece comprises socket blocks, a socket groove used for allowing the sliding block to be inserted therein is formed between the two socket blocks, and the socket groove limits the sliding block in the vertical direction, the horizontal direction and the horizontal direction. According to the method, the top beams and the bottom beams of the adjacent building modules work together through the stoplog shear connectors, the section height and the cost of the single top beam and the single bottom beam are reduced, the floor height and the cost occupied by the structure are reduced, the rigidity and the strength of the composite beam are effectively improved, and the floor deflection is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated buildings, in particular to a stacked beam bidirectional shear-resistant connector. Background Art

[0002] Modular construction is an emerging building structure system that uses each room as a modular unit, which is prefabricated in a factory. After completion, it is transported to the site and assembled into a whole building through reliable connections.

[0003] Each module unit is a rectangular module consisting of four corner columns, four bottom beams and four top beams. The upper and lower module units are connected by rigid connection of columns, and the top beams and bottom beams between the upper and lower module units work independently.

[0004] From the above-mentioned characteristics of modular buildings, it can be seen that the stiffness of the columns of modular buildings is easily caused to be significantly lower than the strength and stiffness of the long-side bottom beams. This beam-column relationship is not conducive to the seismic ductility design of the structure, because the beams in the seismic performance frame should yield before the columns, and plastic hinges appear in the beams to dissipate seismic energy. The strong-beam-weak-column nature of modular buildings will cause the columns to be destroyed first under the action of an earthquake before the beams dissipate the seismic energy, which is not conducive to the seismic resistance of the structure.

[0005] The bottom beam and top beam work independently. In order to ensure the strength and rigidity of the beam, the cross-sectional size is selected to be larger, and the amount of steel used and the cost are both higher. In addition, the top beam and bottom beam of the upper and lower modular units constitute the space occupied by the modular beam structure, which is significantly higher than the height of the ordinary frame structure beam. The height of each floor can differ by more than 0.18m. The height difference of a twenty-story building is 3.6m, which is equivalent to the height of one floor. The more floors there are, the greater the cumulative height, which is obviously uneconomical.

[0006] Based on the above problems, how to optimize the existing modular buildings is an urgent problem that needs to be solved. Utility Model Content

[0007] The utility model provides a stacked beam bidirectional shear connector, which enables the top beam and bottom beam of adjacent building modules to work together, reducing the cross-sectional height and cost of a single top and bottom beam, reducing the floor height and cost occupied by the structure, and effectively improving the rigidity and strength of the composite beam, reducing the deflection of the floor slab.

[0008] The technical problem to be solved is: the bottom beam and the top beam work independently. In order to ensure the strength and rigidity of the beam, the cross-sectional size is selected to be larger, the amount of steel used and the cost are high, and a large space is occupied.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0010] The utility model discloses a bidirectional shear-resistant connecting piece of a stacked beam, comprising a lower shear piece and an upper shear piece, wherein the lower shear piece comprises a fixing piece and a slider slidably arranged on the fixing piece; the upper shear piece comprises a socket block, and a socket slot for inserting the slider is formed between the two socket blocks, and the socket slot has upper, lower, left and right direction limit functions for the slider.

[0011] The utility model provides a bidirectional shear-resistant stacked beam connector. Further, the top surface of the fixing member is provided with a guide rail, and the sliding block is provided with a sliding groove that is slidably matched with the guide rail.

[0012] The utility model provides a bidirectional shear-resistant stacked beam connector. Furthermore, a spring is connected between the fixing piece and the slider, one end of the spring is connected to the insertion end of the slider, and the other end is connected to the fixing piece. The spring is in a stretched state after the slider slides out of the socket and is in a natural state after being inserted into the socket.

[0013] The utility model provides a bidirectional shear-resistant stacked beam connector. Further, a positioning hole is provided at the bottom of the slider, and a spring self-locking pin is provided on the fixing member. The spring self-locking pin is inserted into the positioning hole to fix the position of the slider.

[0014] The utility model provides a bidirectional shear-resistant connector for stacked beams. Furthermore, the spring self-locking pin includes a pin, a fixing plate and a reset spring. One end of the pin passes through the fixing member and is inserted into the positioning hole. The fixing plate is fixed on the pin and is located in the fixing member. The reset spring is sleeved on the pin and is located between the fixing plate and the inner wall of the fixing member.

[0015] The utility model provides a bidirectional shear-resistant stoplog connector. Further, the insertion end of the slider is provided with a fixing plate, and the spring is connected between the fixing plate and the fixing member.

[0016] The utility model provides a bidirectional shear-resistant stoplog connector, further, the sliding block and the socket are both wedge-shaped.

[0017] The utility model provides a bidirectional shear-resistant stacked beam connector, further comprising a socket block having a trapezoidal cross section, and a socket slot having a width at the top and a narrowness at the bottom.

[0018] The utility model provides a bidirectional shear-resistant stoplog connector. Further, the bottom of the slider is provided with two groups of positioning holes, one group for fixing the slider in a state of being inserted into the socket, and the other group for fixing the slider in a state of being pulled out of the socket.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The use of stacked beam shear connectors enables the top and bottom beams of adjacent building modules to work together, reducing the cross-sectional height and cost of a single top and bottom beam, lowering the floor height and cost of the structure, and effectively improving the rigidity and strength of the composite beams, reducing floor deflection;

[0021] 2. Under the action of the return spring, after the slider slides to the designed position, the pin can be inserted into the positioning hole to achieve self-locking, ensuring that the slider will not slip out of the socket;

[0022] 3. The spring can control the state of the slider inserted into the socket to achieve a self-locking connection of the shear connector.

[0023] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the lower shear member of the utility model;

[0026] Figure 3 This is a schematic diagram of the explosion of the lower shear member of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the spring self-locking latch of the utility model;

[0028] Figure 5 This is a schematic diagram of the shear member structure of the utility model.

[0029] Reference numerals:

[0030] 1. Top beam; 2. Bottom beam; 3. Lower shear member; 3.1. Fixing member; 3.2. Slider; 3.3. Guide rail; 3.4. Slide; 3.5. Fixing plate; 3.6. Spring; 3.7. Positioning hole; 3.8. Spring self-locking pin; 3.8.1. Pin; 3.8.2. Fixing plate; 3.8.3. Return spring; 4. Upper shear member; 4.1. Socket block; 4.2. Stiffening rib; 4.3. Socket slot. DETAILED DESCRIPTION

[0031] like Figure 1-Figure 5 As shown, the utility model discloses a stacked beam bidirectional shear connector, which is installed at the quarter points of the beam ends of the top beam 1 and the bottom beam 2, and includes a lower shear member 3 and an upper shear member 4. The lower shear member 3 is fixedly installed on the top beam 1 of the lower building module, and the upper shear member 4 is fixedly installed on the bottom beam 2 of the upper building module; the lower shear member 3 is provided with a wedge-shaped slider 3.2, and the upper shear member 4 is provided with a wedge-shaped socket 4.3, and the wedge slider 3.2 can be inserted into the wedge-shaped socket 4.3 to achieve self-locking.

[0032] The lower shear member 3 includes a fixing member 3.1 and a slider 3.2. The fixing member 3.1 is fixedly installed on the side of the top beam 1, and a plurality of parallel guide rails 3.3 are arranged at intervals on its top surface. In the embodiment of the present application, the cross-sectional shape of the guide rail 3.3 is a trapezoidal structure, and the slider 3.2 is provided with a slide groove 3.4 that slides with the guide rail 3.3. The slide groove 3.4 is clamped on the guide rail 3.3 to enable the slider 3.2 to slide along the fixing member 3.1.

[0033] A fixing plate 3.5 is provided at the insertion end of the slider 3.2, and a spring 3.6 is connected between the fixing plate 3.5 and the fixing member 3.1. In the embodiment of the present application, the spring 3.6 is in a stretched state after the slider 3.2 slides out of the socket slot 4.3, and is in a natural state after the slider 3.2 is inserted into the socket slot 4.3.

[0034] The bottom of the slider 3.2 is provided with two sets of positioning holes 3.7, and the fixing part 3.1 is provided with a spring self-locking pin 3.8. The spring self-locking pin 3.8 is inserted into the positioning hole 3.7 to fix the slider 3.2 in the state of sliding out of the socket slot 4.3 or in the state of being inserted into the socket slot 4.3. The spring self-locking pin 3.8 includes a pin 3.8.1, a fixing piece 3.8.2 and a return spring 3.8.3. One end of the pin 3.8.1 passes through the fixing part 3.1 and is inserted into the positioning hole 3.7. In the positioning hole 3.7, the fixing plate 3.8.2 is fixed on the latch 3.8.1 and located in the fixing part 3.1. The return spring 3.8.3 is sleeved on the latch 3.8.1 and located between the fixing plate 3.8.2 and the fixing part 3.1. Under the action of the return spring 3.8.3, after the slider 3.2 slides to the designed position, the latch 3.8.1 can automatically insert into the positioning hole 3.7 to achieve self-locking, ensuring that the sliding block will not slip out of the socket slot 4.3.

[0035] The upper shear member 4 includes a socket block 4.1 and a stiffening rib 4.2. The socket block 4.1 is provided with two pieces and fixed on the lower flange of the bottom beam 2. A socket slot 4.3 for inserting the slider 3.2 is formed between the two socket blocks 4.1. The width of the slider 3.2 gradually increases from the insertion end to the insertion end. The socket slot 4.3 and the slider 3.2 are self-lockingly engaged to form a reliable stacked beam shear force path so that the top beam 1 and the bottom beam 2 of the upper and lower building modules work together. In the embodiment of the present application, the socket block 4 .1 has a trapezoidal cross-section, with one short side fixedly mounted on the lower flange plate of the bottom beam 2; stiffening ribs 4.2 are fixedly arranged between the upper and lower flange plates of the bottom beam 2 corresponding to the installation position of the socket block 4.1, locally reinforcing the beam area; in addition, there is a 2mm gap on the left and right sides between the slider 3.2 and the socket slot 4.3. Before the slider 3.2 is inserted, a 3.0mm iron filings and steel-bonding mixture of caulking agent is applied on site. During the insertion of the slider 3.2, the 2mm gap is filled to make it dense and reliable in force transmission.

[0036] The embodiments described above are merely descriptions of preferred implementation methods of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A stoplog bidirectional shear connector, characterized in that: The invention comprises a lower shear member (3) and an upper shear member (4), wherein the lower shear member (3) comprises a fixing member (3.1) and a slider (3.2) slidably arranged on the fixing member (3.1); and the upper shear member (4) comprises a socket block (4.1), a socket slot (4.3) for inserting the slider (3.2) is formed between the two socket blocks (4.1), and the socket slot (4.3) has upper, lower, left and right limit functions for the slider (3.2).

2. The stoplog bidirectional shear connector according to claim 1, characterized in that: A guide rail (3.3) is provided on the top surface of the fixing member (3.1), and a sliding groove (3.4) that is slidably matched with the guide rail (3.3) is provided on the sliding block (3.2).

3. The stoplog bidirectional shear connector according to claim 1, characterized in that: A spring (3.6) is connected between the fixing member (3.1) and the slider (3.2); one end of the spring (3.6) is connected to the insertion end of the slider (3.2), and the other end is connected to the fixing member (3.1); the spring (3.6) is in a stretched state after the slider (3.2) slides out of the socket (4.3), and is in a natural state after being inserted into the socket (4.3).

4. The stoplog bidirectional shear connector according to claim 1, characterized in that: A positioning hole (3.7) is provided at the bottom of the slider (3.2), and a spring self-locking pin (3.8) is provided on the fixing member (3.1). The spring self-locking pin (3.8) is inserted into the positioning hole (3.7) to fix the position of the slider (3.2).

5. The stoplog bidirectional shear connector according to claim 4, characterized in that: The spring self-locking latch (3.8) comprises a latch (3.8.1), a fixing plate (3.8.2) and a return spring (3.8.3); one end of the latch (3.8.1) passes through the fixing member (3.1) and is inserted into the positioning hole (3.7); the fixing plate (3.8.2) is fixed on the latch (3.8.1) and is located in the fixing member (3.1); and the return spring (3.8.3) is sleeved on the latch (3.8.1) and is located between the fixing plate (3.8.2) and the inner wall of the fixing member (3.1).

6. The stoplog bidirectional shear connector according to claim 3, characterized in that: A fixing plate (3.5) is provided at the insertion end of the slider (3.2), and the spring (3.6) is connected between the fixing plate (3.5) and the fixing member (3.1).

7. The stoplog bidirectional shear connector according to claim 1, characterized in that: The sliding block (3.2) and the socket (4.3) are both wedge-shaped.

8. The stoplog bidirectional shear connector according to claim 1, characterized in that: The cross section of the socket block (4.1) is trapezoidal, and the socket slot (4.3) is wide at the top and narrow at the bottom.

9. The stoplog bidirectional shear connector according to claim 4, characterized in that: Two groups of positioning holes (3.7) are provided at the bottom of the slider (3.2), one group being used to fix the slider (3.2) in a state of being inserted into the socket (4.3), and the other group being used to fix the slider (3.2) in a state of being pulled out of the socket (4.3).

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