Novel core-pulling type beam-column joint intercepting inflatable rod

Abstract

The utility model provides a novel core-pulling type beam-column joint interception inflating rod, which belongs to the technical field of building construction and is provided with a cylindrical hollow double-wall air bag rod body, an inflating air nozzle is arranged at the top end of the double-wall air bag rod body, grooves are arranged at the top end and the bottom end of the double-wall air bag rod body, a plurality of positioning pieces are arranged in the grooves, and the positioning pieces are arranged in the double-wall air bag rod body. The positioning piece is used for fixing a reinforcing steel bar penetrating into the inner wall of the inflatable rod in an extrusion mode, the positioning piece comprises a supporting column and an arc-shaped rod, the supporting column is used for fixing the arc-shaped rod to the inner wall of the groove, the arc-shaped rod is sleeved with an elastic block, the cross section of the elastic block is D-shaped, a through hole is formed in the elastic block, and the through hole is communicated with the arc-shaped rod. The elastic block is arranged on the arc-shaped rod in a sleeving mode through the through hole.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a core-pulling type novel beam-column node intercepting inflatable rod. Background Art

[0002] In the design of building structures, in line with the concept of "strong columns and weak beams", the concrete grade of the columns in some cast-in-place concrete structures of buildings should be greater than the concrete grade of the beams (such as Figure 1 shown).

[0003] In the past, in order to simultaneously cast the columns and beams of the entire floor, it was necessary to set a wire mesh at the junction of the beams and columns, and cast the columns first and then the beams. This operation is cumbersome and the interception efficiency cannot be guaranteed (the wire mesh is easily dispersed when pouring concrete on one side first, and back-ribbed steel bars are usually required as auxiliary support); secondly, the wire mesh cannot be removed in time, resulting in the actual "disconnection" of the beams on both sides of the wire mesh, affecting the integrity of the overall structure.

[0004] In recent years, a high-low grade concrete inflatable rod interception measure has emerged at the beam-column joint. This inflatable rod can be deflated and removed after pouring concrete on both sides and before the concrete solidifies, solving the problem of "disconnection" on both sides of the interception measure. However, the existing inflatable rod has low rigidity and is easily broken by the flowing concrete when pouring concrete on one side, resulting in low interception efficiency. Utility Model Content

[0005] In view of this, the utility model provides a new type of core-pulling beam-column node intercepting inflatable rod, which can solve the technical problems that the existing inflatable rods have low rigidity and are easily broken by flowing concrete when pouring single-sided concrete, resulting in low interception efficiency.

[0006] The utility model is achieved in this way:

[0007] The first aspect of the utility model provides a core-pulling type novel beam-column node intercepting inflatable rod, wherein the rod has a cylindrical hollow double-walled airbag rod body, the top of the double-walled airbag rod body is provided with an inflation nozzle, the top and bottom ends of the double-walled airbag rod body are provided with grooves, a plurality of positioning members are provided in the grooves, the positioning members are used to fix the steel bars penetrating into the inner wall of the inflatable rod by extrusion, the positioning members include pillars and arc-shaped rods, the pillars are used to fix the arc-shaped rod on the inner wall of the groove, an elastic block is sleeved on the arc-shaped rod, the cross-section of the elastic block is D-shaped, a through hole is provided in the elastic block, and the elastic block is sleeved on the arc-shaped rod through the through hole.

[0008] On the basis of the above technical solution, the core-pulling type novel beam-column node intercepting inflatable rod of the utility model can also be improved as follows:

[0009] Wherein, the radius of the circumscribed circle of the elastic block is equal to the distance between the inner wall of the groove and the inner wall of the inflation rod of the double-walled airbag rod body.

[0010] Furthermore, a plurality of friction bodies are arranged on the D-shaped arc surface of the elastic block.

[0011] Furthermore, the friction body is a small circular protrusion.

[0012] Furthermore, the friction body has vertical lines.

[0013] Furthermore, the elastic block is made of rubber material.

[0014] Furthermore, the inner diameter of the elastic block is greater than the outer diameter of the arc rod.

[0015] Furthermore, the inscribed circle formed by the multiple arc-shaped rods is concentric with the inner wall of the inflatable rod.

[0016] Furthermore, the plurality of arc-shaped rods are fixed to the groove via a hard ring, the outer diameter of the hard ring is equal to the outer diameter of the inner wall of the groove, and the hard ring is clamped in the groove.

[0017] Furthermore, the hard ring is a plastic ring.

[0018] Compared with the prior art, the beneficial effects of the core-pulling type new beam-column node intercepting inflatable rod provided by the utility model are: the rigidity of the inflatable rod is enhanced by adding a steel bar in the inflatable rod, and the steel bar can be taken out after use to enhance the turnover utilization rate; the inflatable rod is made of reinforced fiber mixed with plastic cloth material to ensure that it is easy to break during construction. At the same time, grooves and positioning pieces are set at both ends of the inflatable rod, and the double-walled airbag rod body and the steel bar are fixed by extrusion, so as to better realize the fixation of the relative position of the double-walled airbag rod body and the steel bar. Through the effect of the steel bar, the rigidity of the inflatable rod is improved, and the technical problem of low interception efficiency caused by the inflatable rod being easily broken by the flowing concrete when pouring single-sided concrete is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is the conventional design drawing of high and low grade of beam-column joints of cast-in-place concrete structure;

[0021] Figure 2A schematic diagram of the inflatable rod provided by the utility model;

[0022] Figure 3 It is a structural schematic diagram of the top of the inflatable rod;

[0023] Figure 4 It is a structural schematic diagram of the elastic block;

[0024] Figure 5 It is a schematic diagram of the principle of the utility model;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 01. Double-walled airbag rod body; 011. Inflatable rod inner wall; 02. Inflatable air nozzle; 03. Groove; 04. Positioning piece; 041. Support column; 042. Arc rod; 043. Elastic block; 044. Through hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0028] like Figure 2-4As shown, it is a schematic diagram of a core-pulling type novel beam-column node intercepting inflatable rod provided by the utility model, the inflatable rod has a cylindrical hollow double-walled airbag rod body 01, the top of the double-walled airbag rod body 01 is provided with an inflation nozzle 02, the top and bottom ends of the double-walled airbag rod body 01 are provided with grooves 03, a plurality of positioning members 04 are provided in the groove 03, the positioning member 04 is used to fix the steel bar penetrating into the inner wall 011 of the inflatable rod by extrusion, the positioning member 04 comprises a pillar 041 and an arc rod 042, the pillar 041 is used to fix the arc rod 042 on the inner wall of the groove 03, an elastic block 043 is sleeved on the arc rod 042, the cross section of the elastic block 043 is D-shaped, a through hole 044 is provided in the elastic block 043, and the elastic block 043 is sleeved on the arc rod 042 through the through hole 044. Wherein, the radius of the circumscribed circle of the elastic block 043 is equal to the distance between the inner wall of the groove 03 and the inner wall 011 of the inflatable rod of the double-walled airbag rod body 01. Wherein, a plurality of friction bodies are also arranged on the D-shaped arc surface of the elastic block 043. Wherein, the friction body is a small circular protrusion. Wherein, the friction body is a vertical stripe. Wherein, the elastic block is made of rubber material. Wherein, the inner diameter of the elastic block 043 is greater than the outer diameter of the arc rod 042. Wherein, the inscribed circle formed by the plurality of arc rods 042 is a concentric circle with the inner wall 011 of the inflatable rod. Wherein, the plurality of arc rods 042 are fixed to the groove 03 by a hard ring, the outer diameter of the hard ring is equal to the outer diameter of the inner wall of the groove 03, and the hard ring is clamped in the groove 03. Wherein, the hard ring is a plastic ring.

[0029] Below are three specific embodiments of the present invention:

[0030] Embodiment 1:

[0031] In this embodiment, the specific structure of the core-pulling type new beam-column node intercepting inflatable rod is as follows:

[0032] The main part of the inflatable rod is a double-walled airbag rod body 01, which adopts a hollow cylindrical structure and has an inner wall 011 and an outer wall 012. An inflatable nozzle 02 is provided at the top of the double-walled airbag rod body 01, which is used to inflate the inside of the rod body. An annular groove 03 is provided at the top and bottom of the double-walled airbag rod body 01, and the function of the groove 03 is to fix the positioning member 04. The positioning member 04 is a key component for fixing the steel bars inserted into the inflatable rod. The positioning member 04 includes a pillar 041 and an arc rod 042. The pillar 041 is columnar, one end of which is fixed on the inner wall of the groove 03, and the other end is fixed with an arc rod 042. The shape of the arc rod 042 is semicircular, and the diameter of its inscribed circle is equal to the diameter of the inner wall 011 of the inflatable rod, so that the two are arranged concentrically.

[0033] The outer surface of the arc rod 042 is sleeved with an elastic block 043, and the cross-sectional shape of the elastic block 043 is D-shaped. A through hole 044 is provided inside the elastic block 043, and the elastic block 043 is sleeved on the arc rod 042 through the through hole 044. The diameter of the circumscribed circle of the elastic block 043 is equal to the distance between the inner wall of the groove 03 and the inner wall 011 of the inflatable rod, so that it can be closely attached to the inner wall of the groove 03. The elastic block 043 is made of rubber material and has good elastic deformation ability and damping characteristics. The D-shaped arc surface of the elastic block 043 is provided with a plurality of small circular protrusions, which play a role in increasing friction and are conducive to fixing the steel bars inserted into the inflatable rod. The entire positioning member 04 is composed of three parts: the pillar 041, the arc rod 042 and the elastic block 043. The support 041 fixes the arc rod 042 on the inner wall of the groove 03. The concentric arrangement of the arc rod 042 ensures that its inscribed circle coincides with the inner wall 011 of the inflatable rod. The elastic block 043 achieves reliable fixation of the steel bar through its good fit and high friction.

[0034] The working principle of this embodiment is as follows: first, the steel bar is inserted into the inflatable rod, and then the steel bar is fixed by means of the positioning member 04. Specifically, the steel bar passes through the through hole 044 inside the elastic block 043 and contacts the small circular protrusion on the surface of the elastic block 043. Due to the good fit and high friction of the elastic block 043, the steel bar is reliably fixed.

[0035] The advantages of this design are: 1) the positioning member 04 is composed of three parts: a pillar 041, an arc rod 042 and an elastic block 043, and the structure is simple and easy to manufacture; 2) the elastic block 043 is made of rubber material, which has good elastic deformation ability and damping characteristics, and is conducive to absorbing external impact loads; 3) a friction body is provided on the surface of the elastic block 043, which further enhances the fixing effect on the steel bar. In general, this embodiment provides a new type of core-pulling beam-column node intercepting inflatable rod with a simple structure and excellent performance.

[0036] Embodiment 2:

[0037] Based on Example 1, this example further optimizes the specific structure of the positioning member 04.

[0038] Similar to the first embodiment, the inflatable rod is also composed of a double-walled airbag rod body 01, an inflatable nozzle 02 and a groove 03. The positioning member 04 also includes two parts, a pillar 041 and an arc rod 042. The difference is that the inscribed circle of the multiple arc rods 042 in the second embodiment is completely concentric with the inner wall 011 of the inflatable rod. This concentric arrangement can not only better fit the inner wall 011 of the inflatable rod, but also is conducive to the stability of the overall structure. In order to further enhance the fixing reliability between the positioning member 04 and the groove 03, a hard plastic ring 045 is provided on the inner wall of the groove 03 in this embodiment. The outer diameter of this hard plastic ring 045 is equal to the inner diameter of the groove 03, and can be snapped into the groove 03, so that the multiple arc rods 042 are reliably fixed on the inner wall of the groove 03. Similar to the first embodiment, the arc rod 042 is also sleeved with an elastic block 043, the cross-section of the elastic block 043 is D-shaped, and a through hole 044 is provided inside for sleeved on the arc rod 042. The difference is that in this embodiment, the inner diameter of the elastic block 043 is larger than the outer diameter of the arc rod 042, so that the elastic block 043 can be better fitted on the inner wall of the groove 03, thereby improving the overall stability. The elastic block 043 is also made of rubber material, and has good elastic deformation ability and damping characteristics. The D-shaped arc surface of the elastic block 043 is also provided with a plurality of small circular protrusions as friction bodies, which is conducive to enhancing the fixing effect on the steel bar.

[0039] The working principle of this embodiment is similar to that of the first embodiment, that is, the steel bar is inserted into the inflatable rod, and then the steel bar is fixed by the positioning member 04. Since the inscribed circle of the multiple arc-shaped rods 042 is concentric with the inner wall 011 of the inflatable rod, and the hard plastic ring 045 is reliably fixed, the entire positioning member 04 can be firmly embedded in the inner wall of the groove 03. The elastic block 043 achieves reliable fixation of the steel bar through good fit and high friction.

[0040] The advantages of this embodiment are: 1) the concentric arrangement of multiple arc-shaped rods 042 improves the stability of the overall structure; 2) the design of the hard plastic ring 045 enhances the fixation reliability between the positioning member 04 and the groove 03; 3) the inner diameter of the elastic block 043 is larger than the outer diameter of the arc-shaped rod 042, which is conducive to improving the overall stability. In general, this embodiment further optimizes the structural design of the core-pulling type new beam-column node interception inflatable rod.

[0041] Embodiment 3:

[0042] Based on the previous two embodiments, this embodiment innovates the surface treatment of the elastic block 043.

[0043] Similar to the previous two embodiments, the inflatable rod is composed of a double-walled airbag rod body 01, an inflatable nozzle 02 and a groove 03, and the positioning member 04 includes a pillar 041 and an arc rod 042. The inscribed circles of the multiple arc rods 042 are also arranged concentrically with the inner wall 011 of the inflatable rod. The difference is that in this embodiment, a friction body in the vertical direction, that is, a pattern arranged in the vertical direction, is provided on the D-shaped arc surface of the elastic block 043. This design is different from the scheme of using small circular protrusions as friction bodies in the previous two embodiments. In this design, the friction pattern in the vertical direction can increase the fixing force of the steel bar in the vertical direction, thereby facilitating the shear resistance of the entire structure. This is because when subjected to external vertical loads, the steel bar tends to slip in the vertical direction, and the friction pattern in the vertical direction can better prevent such slippage, thereby improving the overall stiffness and strength. Similarly, the elastic block 043 is made of rubber material and has good elastic deformation capacity and damping characteristics. These characteristics can effectively absorb external impact loads and improve the seismic performance of the entire structure. As in the previous two embodiments, the hard plastic ring 045 is still arranged on the inner wall of the groove 03 to reliably fix the plurality of arc-shaped rods 042. The inscribed circle of the arc-shaped rod 042 is arranged concentrically with the inner wall 011 of the inflatable rod, further enhancing the stability of the overall structure. The inner diameter of the elastic block 043 is larger than the outer diameter of the arc-shaped rod 042, so that it can better fit on the inner wall of the groove 03. This design not only improves the overall stability, but also helps to give full play to the damping effect of the elastic block 043.

[0044] The working principle of this embodiment is similar to that of the previous two embodiments, that is, the steel bar is inserted into the inflatable rod, and then the steel bar is fixed by means of the positioning member 04. The difference is that the vertical friction pattern on the surface of the elastic block 043 in this embodiment can better limit the sliding of the steel bar in the vertical direction, thereby improving the shear resistance of the entire structure.

[0045] The advantages of this embodiment are: 1) the vertical friction lines on the surface of the elastic block 043 enhance the vertical fixing effect on the steel bar and improve the overall shear resistance; 2) the elastic block 043 is made of rubber material, which has good elastic deformation ability and damping characteristics, which is conducive to absorbing external impact loads; 3) the design of the hard plastic ring 045 enhances the fixing reliability between the positioning member 04 and the groove 03; 4) the inner diameter of the elastic block 043 is larger than the outer diameter of the arc rod 042, which is conducive to improving the overall stability. In general, this embodiment further optimizes the shear resistance of the core-pulling type new beam-column node interception inflatable rod on the basis of the previous two embodiments.

[0046] In summary, the three embodiments provided by the utility model all have the characteristics of simple structure and excellent performance. Through the innovative design of the positioning member 04, it can not only achieve reliable fixation of the steel bars inserted into the inflatable rod, but also effectively absorb external impact loads and improve the seismic performance of the entire structure. At the same time, different embodiments also optimize the structural stability and shear resistance in a targeted manner to meet various engineering application requirements. This new beam-column node intercepting inflatable rod will surely play an important role in the field of earthquake resistance of building structures.

[0047] Specifically, the principle of the utility model is: Figure 5 As shown, the rigidity of the inflatable rod is enhanced by adding a steel bar to the rod. The steel bar can be taken out after use to increase the turnover rate. The inflatable rod is made of reinforced fiber mixed with plastic cloth to ensure that it is not easily damaged during construction. Specifically:

[0048] 1. A hollow double-walled airbag rod body 01 is used as the main body of the inflatable rod, and an inflatable air nozzle 02 is provided on the top, which can improve the overall rigidity through inflation and enhance the interception ability of flowing concrete.

[0049] 2. Annular grooves 03 are provided at the top and bottom of the double-walled airbag rod body 01 for fixing the positioning member 04. The positioning member 04 includes a support 041, an arc rod 042 and an elastic block 043, which can reliably fix the steel bar inserted into the inflatable rod.

[0050] 3. The inscribed circle of the arc rod 042 is arranged concentrically with the inner wall 011 of the inflatable rod, which improves the stability of the overall structure. The design of the hard plastic ring 045 further enhances the fixing reliability between the positioning member 04 and the groove 03.

[0051] 4. Elastic block 043 is made of rubber material, which has good elastic deformation ability and damping characteristics, can effectively absorb external impact loads and improve the seismic performance of the entire structure. The friction body on the surface (such as small round protrusions or vertical lines) can enhance the fixing effect on the steel bars.

[0052] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.

Claims

1. A new type of core-pulling beam-column node intercepting inflatable rod, characterized in that: A double-walled airbag rod body is provided with a cylindrical hollow body, an inflation nozzle is arranged at the top end of the double-walled airbag rod body, grooves are provided at the top and bottom ends of the double-walled airbag rod body, a plurality of positioning members are arranged in the groove, the positioning members are used to fix the steel bars penetrating into the inner wall of the inflation rod by extrusion, the positioning members include pillars and arc-shaped rods, the pillars are used to fix the arc-shaped rods on the inner wall of the grooves, an elastic block is sleeved on the arc-shaped rod, the cross section of the elastic block is D-shaped, a through hole is provided in the elastic block, and the elastic block is sleeved on the arc-shaped rod through the through hole.

2. A core-pulling type novel beam-column node intercepting inflatable rod according to claim 1, characterized in that: The radius of the circumscribed circle of the elastic block is equal to the distance between the inner wall of the groove and the inner wall of the inflation rod of the double-walled airbag rod body.

3. A core-pulling type novel beam-column node intercepting inflatable rod according to claim 2, characterized in that: A plurality of friction bodies are also arranged on the D-shaped arc surface of the elastic block.

4. A core-pulling type novel beam-column node intercepting inflatable rod according to claim 3, characterized in that: The friction body is a small circular protrusion.

5. The core-pulling type novel beam-column node intercepting inflatable rod according to claim 3 is characterized in that: The friction body has vertical lines.

6. A core-pulling type novel beam-column node intercepting inflatable rod according to any one of claims 3 to 5, characterized in that: The elastic block is made of rubber material.

7. A core-pulling type novel beam-column node intercepting inflatable rod according to claim 6, characterized in that: The inner diameter of the elastic block is greater than the outer diameter of the arc-shaped rod.

8. The core-pulling type novel beam-column node intercepting inflatable rod according to claim 7 is characterized in that: The inscribed circle formed by the multiple arc-shaped rods is concentric with the inner wall of the inflatable rod.

9. The core-pulling type novel beam-column node intercepting inflatable rod according to claim 8 is characterized in that: The plurality of arc-shaped rods are fixed to the groove via a hard ring, the outer diameter of the hard ring is equal to the outer diameter of the inner wall of the groove, and the hard ring is clamped in the groove.

10. A core-pulling type novel beam-column node intercepting inflatable rod according to claim 9, characterized in that: The hard ring is a plastic ring.

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