Universal structure for connecting track and concrete member

Abstract

The invention belongs to the technical field of industrial factory building design, and particularly relates to a general structure for connection of a track and a concrete member, the general structure comprises a concrete beam, a shorter beam, a higher beam, a suspension track and a transition connecting piece, and the transition connecting piece connects the higher beam with the suspension track through a bolt; a pulling bolt anchor plate is embedded in the higher beam, a pulled anchor bolt extending out of the higher beam is arranged below the pulling bolt anchor plate, and the tail end of the pulled anchor bolt enables the higher beam and the transition connecting piece to be connected and fixed through a bolt. Compared with the prior art, the method has no height difference requirement on the beam height section at the intersection, namely, the limitation of a traditional method is avoided, and the method can even be normally used in a thicker concrete slab; meanwhile, the situation that when the maximum tension standard value Fk of a traditional method is larger than 123.81 kN, the picture set traditional method is not suitable any more is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial plant design, and particularly relates to a universal structure for connecting a track with a concrete component. Background Art

[0002] The traditional method of connecting tracks to general concrete beams is to use the national standard atlas "Suspension Transport Equipment Track (General Concrete Beam)" (05G359-3).

[0003] According to the national standard atlas "Tracks for Suspended Transport Equipment (General Concrete Beams)" (05G359-3), this atlas applies to a manual monorail trolley or electric hoist (hereinafter referred to as an electric hoist) with a working class of M1 to M5 and used in conjunction with a manual hoist, or a manual beam-type suspension crane or electric single-girder suspension crane (hereinafter referred to as an electric single-girder suspension crane) with a working class of A1 to A5, suspended from a concrete beam. The straight track in this atlas applies to electric hoists with a rated lifting capacity ≤10t and electric single-girder suspension cranes with a rated lifting capacity ≤5t; the curved track in this atlas applies to electric hoists with a rated lifting capacity ≤3.2t. The track support angles are 90°, 60°, 45°, and 30°.

[0004] The national standard atlas "Tracks for Suspended Transport Equipment (General Concrete Beams)" (05G359-3) restricts the connection of tracks to general concrete beams. To ensure the installation of connectors, the higher-cross-section connected beam (the higher beam) must be higher than the shorter beam (the shorter beam) by a distance of A at the intersection. Depending on the connector, this must be met: A ≥ 200 + 50 mm, A ≥ 200 + 60 mm, or A ≥ 200 + 85 mm.

[0005] Therefore, due to the limitations of traditional methods (the method in the atlas), when A does not meet the above requirements, the traditional connection method in the atlas cannot be used. In addition, the maximum tensile force that the anchor bolt group of the connecting parts connecting the suspension track can withstand is Fk≤123.81kN. When Fk>123.81kN, the traditional method in the atlas is no longer applicable.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] The object of the present invention is to provide a universal structure for connecting a track to a concrete member, so as to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A universal structure for connecting a track to a concrete member comprises a concrete beam, a shorter beam, a taller beam, a suspension track and a transition connector, wherein the transition connector connects the taller beam to the suspension track via bolts;

[0010] A tension bolt anchor plate is embedded in the higher beam, and a tension anchor bolt extending out of the higher beam is provided below the tension bolt anchor plate. The end of the tension anchor bolt is connected and fixed to the higher beam and the transition connector by a bolt.

[0011] Preferably, an anchor plate reinforcement is welded below the pull bolt anchor plate.

[0012] Preferably, a concrete grouting hole is opened in the middle of the pull bolt anchor plate.

[0013] Preferably, when the concrete strength of the higher beam is ≥ C30, the relationship between the anchoring length L of the tension anchor and the diameter d of the tension anchor is:

[0014] When the material of the tension anchor is Q235B, L = 12d, and L ≥ 2H / 3-100mm;

[0015] Where H is the height of the higher beam.

[0016] Preferably, when the concrete strength of the higher beam is ≥ C30, the relationship between the anchoring length L of the tension anchor and the diameter d of the tension anchor is:

[0017] When the material of the tension anchor is Q355B, L = 15d, and L ≥ 2H / 3-100mm;

[0018] Where H is the height of the higher beam.

[0019] Preferably, a transition device is provided at the bottom of the higher beam, the transition device comprising a steel plate buried in the bottom of the higher beam and a steel pipe located above the steel plate, and the tension anchor bolt passes through the steel pipe and the steel plate.

[0020] Preferably, the outer ring of the steel pipe is provided with a coarse metric thread.

[0021] Preferably, the inner diameter of the steel pipe is 2 mm larger than the diameter of the tension anchor bolt, and the steel pipe is 3 mm thick and 70 mm long.

[0022] Compared with existing technologies, this invention offers the following advantages: It eliminates the height difference requirement for the cross-section of the beam at the intersection, thus avoiding the limitations of traditional methods and allowing normal use even in thicker concrete slabs. It also avoids the situation where the traditional method is no longer applicable when the maximum tensile force standard value Fk exceeds 123.81kN. This improved method is theoretically suitable for even higher tensile forces and is applicable to a wider range of scenarios.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 The figure is a plan layout diagram of the traditional connection structure between track and concrete member in the prior art.

[0026] Figure 2 The figure is a schematic elevational structural diagram of a conventional track and concrete component connection structure in the prior art.

[0027] Figure 3 A schematic elevational view of a universal structure for connecting a track to a concrete member provided by an embodiment of the present invention.

[0028] Figure 4 for Figure 3 Medium AA view.

[0029] Figure 5 for Figure 3 Middle BB view.

[0030] Figure 6 for Figure 3 Middle CC view.

[0031] In the figure: 1. Concrete beam; 2. Higher beam; 3. Lower beam; 4. Transition connector; 5. Suspension track; 7. Tension anchor plate; 8. Tension anchor; 9. Bolt; 10. Anchor plate reinforcement; 11. Concrete grouting hole; 12. Steel plate; 13. Steel pipe; 14. Rebar. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 2 The traditional method of connecting the track with the general concrete beam 1 is to adopt the national standard atlas "Suspension Transport Equipment Track (General Concrete Beam 1)" (05G359-3).

[0034] According to the national standard atlas "Tracks for Suspended Transport Equipment (General Concrete Beams 1)" (05G359-3), this atlas applies to a manual monorail trolley or electric hoist (hereinafter referred to as an electric hoist) with a working class of M1 to M5 and used in conjunction with a manual hoist, or a manual beam-type suspension crane or electric single-girder suspension crane (hereinafter referred to as an electric single-girder suspension crane) with a working class of A1 to A5, suspended on a concrete beam 1. The straight track in this atlas applies to electric hoists with a rated lifting capacity ≤10t and electric single-girder suspension cranes with a rated lifting capacity ≤5t; the curved track in this atlas applies to electric hoists with a rated lifting capacity ≤3.2t. The track support angles are 90°, 60°, 45°, and 30°.

[0035] The national standard atlas "Suspended Transport Equipment Track (General Concrete Beam 1)" (05G359-3) restricts track connections to general concrete beams. To ensure proper installation of connectors, the higher-cross-section connected beam (higher beam 2) must be elevated above the shorter beam (shorter beam 3) by a distance A at the beam intersection. Depending on the connector, this must meet the following requirements: A ≥ 200 + 50 mm, A ≥ 200 + 60 mm, or A ≥ 200 + 85 mm.

[0036] Therefore, due to the limitations of the traditional method (the method in the atlas), when the distance A in the figure does not meet the above requirements, the traditional connection method in the atlas cannot be used. In addition, the maximum tensile force that the anchor bolt group of the connecting parts connecting the suspension track 5 can withstand is Fk≤123.81kN. When Fk>123.81kN, the traditional method in the atlas is no longer applicable.

[0037] like Figure 3-6As shown, an embodiment of the present invention provides a general structure for connecting a track and a concrete member, comprising a concrete beam 1, a shorter beam 3, a taller beam 2, a suspension track 5 and a transition connector 4, wherein the transition connector 4 connects the taller beam 2 to the suspension track 5 via bolts 9; a tension anchor plate 7 and a steel bar 14 are embedded in the taller beam 2, and a tension anchor 8 extending from the taller beam 2 is provided below the tension anchor plate 7, and the end of the tension anchor 8 is connected and fixed to the taller beam 2 and the transition connector 4 via bolts 9. An anchor plate reinforcement 10 is also welded below the tension anchor plate 7. A concrete grouting hole 11 is provided in the middle of the tension anchor plate 7. When the concrete strength of the taller beam 2 is ≥C30, the relationship between the anchoring length L of the tension anchor 8 and the diameter d of the tension anchor 8 is:

[0038] When the material of the tension anchor bolt 8 is Q235B, L = 12d, and L ≥ 2H / 3-100mm;

[0039] When the material of the tension anchor bolt 8 is Q355B, L = 15d, and L ≥ 2H / 3-100mm;

[0040] Where H is the height of the higher beam 2.

[0041] In this embodiment, in order to ensure that the tension anchor bolt 8 is reliably anchored in the anchored concrete member and to reduce the anchoring length as much as possible, the tension anchor bolt 8 and the tension bolt anchor plate 7 are reinforced and reliably welded as shown in the cross-section of Figure AA, and then the tension anchor bolt 8 and the tension bolt anchor plate 7 are welded to form an anchor plate system, and a concrete grouting hole 11 is opened in the middle of the tension bolt anchor plate 7 to ensure that the concrete is reliably poured and compacted.

[0042] This embodiment of the present invention provides a universal structure for connecting rails to concrete components. A transition device is provided at the bottom of the higher beam 2. This device comprises a steel plate 12 embedded in the bottom of the higher beam 2 and a steel pipe 13 positioned above the steel plate 12. The tension anchor 8 passes through the steel pipe 13 and the steel plate 12. The outer ring of the steel pipe 13 is provided with a coarse metric thread. The inner diameter of the steel pipe 13 is 2 mm greater than the diameter of the tension anchor 8. The steel pipe 13 is 3 mm thick and 70 mm long.

[0043] In this embodiment, since the tension anchor bolts 8 are set at the bottom of the concrete beam 1, under the action of tension, the tension anchor bolts 8 are concentrated in the area between the outer surface of the concrete at the bottom of the beam and the resultant force line of the longitudinal reinforcement 14 of the concrete beam 1. The concrete at the bottom of the beam in this area is prone to cracking and falling off, and the protective layer of the concrete beam 1 is damaged, affecting the normal operation of the beam and posing an obvious safety hazard. Therefore, a transition device composed of a steel plate 12 and a steel pipe 13 is set in this area to effectively eliminate the aforementioned safety hazard.

[0044] In the present invention, the bolts 9 connecting the rails adopt the bolt 9 model of the adapted gauge according to the model of the suspension rail 5, and at the same time meet the tensile bearing capacity. According to actual usage, 4.6, 4.8 grade ordinary bolts 9 or 8.8, 10.9 grade high-strength bolts 9 can be used.

[0045] Taking an actual case as a reference, the maximum rated lifting capacity of an electric hoist is 16t, the deadweight of the electric hoist is 2t, and the deadweight of the lower connectors and rails of the tension anchor groups 8 is ≤1t; the maximum standard value of the tensile force that the tension anchor groups 8 of the transition connector 4 connecting the suspension rail 5 need to withstand is Fk=160+20+10=190kN, and the maximum design value of the tensile force that needs to be withstand is F=1.3×10+1.5×(160+20)=283kN, which exceeds the bearing capacity of traditional practices.

[0046] Hereinafter, the concrete beam 1 or slab to which the tension anchor bolts 8 are anchored is referred to as an anchored concrete member.

[0047] 1. The tension anchor group can be composed of no less than 2 anchor bolts.

[0048] 2. Assuming that the maximum tensile force that the connection needs to withstand is Fk = 190kN and the maximum tensile force design value that needs to be withstand is F = 283kN, and assuming that the tension anchor group consists of 4 tension anchors 8, a calculation example is given:

[0049] Considering the uneven coefficient of 1.2, the tension of each tension anchor 8 is F = 283 × 1.2 / 4 = 84.9 kN

[0050] If the tension anchor bolt 8 is made of Q235 material and has a diameter of d=33, the bearing capacity of a single M33 tension anchor bolt 8 is Nt=97.1kN≥84.9kN, that is, 4M33 can meet the requirement.

[0051] If the tension anchor bolt 8 is made of Q355 material and has a diameter of d=30, the bearing capacity of a single M30 tension anchor bolt 8 is Nt=100.9kN≥84.9kN, that is, 4M30 can meet the requirement.

[0052] Compared to existing technologies, this improved approach eliminates the need for height differences in the cross-section of the beam at the intersection, thus avoiding the limitations of traditional approaches and allowing for normal use even in thicker concrete slabs. It also avoids the situation where the traditional approach, as outlined in the atlas, becomes unsuitable when the maximum tensile force Fk exceeds 123.81 kN. This improved approach is theoretically suitable for even greater tensile forces and a wider range of scenarios.

[0053] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0054] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0055] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0056] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations are readily apparent to those skilled in the art. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention. It should be noted that similar reference numerals and letters denote similar items in the following figures. Therefore, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

Claims

1. A universal structure for connecting a track to a concrete member, characterized in that: The system comprises a concrete beam, a shorter beam, a taller beam, a suspension track and a transition connector, wherein the transition connector connects the taller beam to the suspension track via bolts; A tension bolt anchor plate is embedded in the higher beam, and a tension anchor bolt extending out of the higher beam is provided below the tension bolt anchor plate. The end of the tension anchor bolt is connected and fixed to the higher beam and the transition connector by a bolt.

2. A universal structure for connecting a track to a concrete member according to claim 1, characterized in that: Anchor plate reinforcement is welded below the pull bolt anchor plate.

3. A universal structure for connecting a track to a concrete member according to claim 2, characterized in that: A concrete grouting hole is opened in the middle of the pull bolt anchor plate.

4. A universal structure for connecting a track to a concrete member according to claim 3, characterized in that: When the concrete strength of the higher beam is ≥ C30, the relationship between the anchorage length L of the tension anchor and the diameter d of the tension anchor is: When the material of the tension anchor is Q235B, L = 12d, and L ≥ 2H / 3-100mm; Where H is the height of the higher beam.

5. The universal structure for connecting a track to a concrete member according to claim 3, characterized in that: When the concrete strength of the higher beam is ≥ C30, the relationship between the anchorage length L of the tension anchor and the diameter d of the tension anchor is: When the material of the tension anchor is Q355B, L = 15d, and L ≥ 2H / 3-100mm; Where H is the height of the higher beam.

6. A universal structure for connecting a track to a concrete member according to claim 4 or 5, characterized in that: A transition device is provided at the bottom of the higher beam. The transition device comprises a steel plate buried in the bottom of the higher beam and a steel pipe located above the steel plate. The tension anchor bolt passes through the steel pipe and the steel plate.

7. The universal structure for connecting a track to a concrete member according to claim 6, characterized in that: The outer ring of the steel pipe is provided with a coarse metric thread.

8. The universal structure for connecting a track to a concrete member according to claim 7, characterized in that: The inner diameter of the steel pipe is 2 mm larger than the diameter of the tension anchor bolt, and the steel pipe is 3 mm thick and 70 mm long.

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