Hinge reinforcing device of ball tension joint

Abstract

The utility model discloses a hinging and reinforcing device for a ball tension node. The hinging and reinforcing device comprises a bowl-shaped buckling piece and a connecting piece, the bowl-shaped buckling piece is buckled on the opposite side of a reinforcing node of the bolt ball, and meanwhile, the bowl-shaped buckling piece is connected with a pulled rod piece connected to the reinforcing node through the plurality of connecting pieces; the two ends of the connecting piece are fixedly connected with the bowl-shaped buckling piece and the pulled rod piece respectively. The reinforcing joints are tension joints with insufficient tensile bearing capacity on the bolt balls. Aiming at a built steel net rack building (structure), the utility model solves the problem of insufficient tensile bearing capacity of a bolt-sphere joint, and can reinforce a tensile joint.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure reinforcement and transformation, in particular to an articulated reinforcement device for a ball tension node. Background Art

[0002] After the steel structure grid has been installed, if the tensile strength of the tensile node at the bolt ball is insufficient, it is a relatively complicated situation and there is no perfect solution. Generally, it can be solved in the following ways:

[0003] The first approach is to replace the existing rods. To replace the rods, it is necessary to set supports on the ball nodes and rods within the influence range of the rods, so that the rods to be replaced become zero rods. Only in this way can the replacement ensure the safety of the overall structure. However, setting supports is a dangerous and labor-intensive task, because the roof may be relatively high and the stability requirements of the supports themselves are also high. Moreover, in some cases, there are no conditions for setting supports, mainly due to space and construction period. For example, in a running factory or a factory with a suspended ceiling, the pipelines in the factory are complex and there is no space and construction period to set supports.

[0004] The second way is to weld several new rods between the rods to be reinforced and the bolt balls to supplement the original bolt ball node's insufficient tensile strength. However, the bolt balls are mostly made of 45# steel, and the new rods are made of Q355 or Q235. The weldability between the two different steels is not good. Some literature and papers have studied this welding problem. Generally, the bolt balls need to be preheated to 100~200 degrees Celsius, and the temperature needs to be slowly lowered after welding to eliminate the temperature residual stress as much as possible. It is difficult to have such construction conditions for existing buildings, which will result in a discount in the welding effect, and the discount is difficult to calculate specifically.

[0005] The third approach is to use structural adhesive to bond the additional rods at the nodes to avoid welding. However, the indoor temperature of the existing buildings may be high, or the buildings may be open, which are directly affected by natural conditions, resulting in the durability of the structural adhesive failing to meet the requirements of the structural design service life, posing a major structural safety hazard. Utility Model Content

[0006] Therefore, in order to solve the above-mentioned deficiencies, the utility model provides an articulated reinforcement device for a ball tension node, which solves the problem of insufficient tensile bearing capacity of bolt ball nodes in existing steel grid buildings (structures) and can reinforce the tension nodes.

[0007] Specifically, the hinged reinforcement device of the bulb tension node includes a bowl-shaped buckle, the bowl-shaped buckle and a connecting piece;

[0008] The bowl-shaped fastening member is fastened to the opposite side of the reinforcement node of the bolt ball, and the bowl-shaped fastening member is connected to the tension rod member connected to the reinforcement node through a plurality of the connecting members;

[0009] The two ends of the connecting member are respectively fixedly connected to the bowl-shaped buckle member and the tension rod member;

[0010] The reinforced node is a tension node on the bolt ball with insufficient tensile bearing capacity.

[0011] Optionally, a strip-shaped connection area is formed after the connecting member is fixedly connected to the tension rod.

[0012] Optionally, a clamp member that is clamped to the connecting member is installed on the tension rod, and the clamp member is located in the front part of the strip connecting area.

[0013] Optionally, the fixed connection is achieved by welding, and the connecting piece, bowl-shaped snap-fit ​​piece and tension rod are made of the same material or materials that are well weldable to each other.

[0014] Optionally, the bowl-shaped fastener is formed by welding at least two bowl-shaped units.

[0015] Optionally, the connecting member is a steel bar or a steel wire, and the number of the connecting members is four, and the four connecting members are evenly arranged.

[0016] The utility model has the following advantages:

[0017] The utility model has a reasonable design and a simple structure. It is aimed at existing steel grid buildings (structures) and solves the problem that the tensile bearing capacity of the tensile bolt ball nodes cannot meet the requirements, while the use of the existing technology has the limitations described in the background technology. The utility model adopts a fixed connection method (welding method) with good force reliability. The components can be prefabricated in the factory and can be easily and quickly installed on site, without affecting the normal use of the building (structure) and with a short construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the utility model in use;

[0019] Figure 2 It is a side view schematic diagram of the bowl-shaped fastening member and the steel bar after being welded in the utility model;

[0020] Figure 3 It is a side view schematic diagram of the tension rod and the steel bar after being welded in the utility model;

[0021] In the figure: 1, bowl-shaped fastener; 11, bowl-shaped semicircle; 2, clamp; 3, steel bar; 4, tension rod; 41, strip connection area; 5, bolt ball. DETAILED DESCRIPTION

[0022] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0023] In this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises", or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0024] As mentioned in the background technology, after the steel structure grid has been installed, if the tensile strength of the tensile node at the bolt ball is insufficient, it is a relatively complicated situation and there is no perfect solution. Generally, it can be solved in the following ways:

[0025] The first approach is to replace the existing rods. To replace the rods, it is necessary to set supports on the ball nodes and rods within the influence range of the rods, so that the rods to be replaced become zero rods. Only in this way can the replacement ensure the safety of the overall structure. However, setting supports is a dangerous and labor-intensive task, because the roof may be relatively high and the stability requirements of the supports themselves are also high. Moreover, in some cases, there are no conditions for setting supports, mainly due to space and construction period. For example, in a running factory or a factory with a suspended ceiling, the pipelines in the factory are complex and there is no space and construction period to set supports.

[0026] The second way is to weld several new rods between the rods to be reinforced and the bolt balls to supplement the original bolt ball node's insufficient tensile strength. However, the bolt balls are mostly made of 45# steel, and the new rods are made of Q355 or Q235. The weldability between the two different steels is not good. Some literature and papers have studied this welding problem. Generally, the bolt balls need to be preheated to 100~200 degrees Celsius, and the temperature needs to be slowly lowered after welding to eliminate the temperature residual stress as much as possible. It is difficult to have such construction conditions for existing buildings, which will result in a discount in the welding effect, and the discount is difficult to calculate specifically.

[0027] The third approach is to use structural adhesive to bond the additional rods at the nodes to avoid welding. However, the indoor temperature of the existing buildings may be high, or the buildings may be open, which are directly affected by natural conditions, resulting in the durability of the structural adhesive failing to meet the requirements of the structural design service life, posing a major structural safety hazard.

[0028] Based on the above problems, this embodiment provides a hinge reinforcement device for a ball tension node, including a bowl-shaped buckle member, the bowl-shaped buckle member and a connecting member;

[0029] The bowl-shaped fastening member is fastened to the opposite side of the reinforcement node of the bolt ball, and the bowl-shaped fastening member is connected to the tension rod member connected to the reinforcement node through a plurality of the connecting members;

[0030] The two ends of the connecting piece are respectively fixedly connected to the bowl-shaped buckle piece and the tension rod by welding, and the connecting piece, the bowl-shaped buckle piece and the tension rod are made of the same material or materials with good weldability;

[0031] The reinforced node is a tensile node on the bolt ball with insufficient tensile bearing capacity; the connecting member is a steel bar or a steel wire, and the number of the connecting members is four, and the four connecting members are evenly arranged; preferably, the connecting member is a steel bar.

[0032] The above technical features can solve the problem of insufficient tensile bearing capacity of bolt ball nodes in existing steel grid buildings (structures) and reinforce the tensile nodes.

[0033] In order to improve the stability of the connection and fix the connecting member, a hoop member that is tightly attached to the connecting member is installed on the tension rod member, and the hoop member is located in the front part of the strip connection area.

[0034] To facilitate assembly and disassembly, in one embodiment, the bowl-shaped fastening member is formed by welding two bowl-shaped units.

[0035] For example, the two bowl-shaped units are bowl-shaped semicircles, and the size and specifications of the bowl-shaped semicircles 11 are determined in the factory according to the on-site layout. Each bowl-shaped semicircle is welded with a plurality of steel bars (i.e., the connecting member 3) by fillet welds in the factory, and the number and specifications of the steel bars are determined according to calculations. If the welding length of the steel bar is not enough, an extension edge can be set as needed to lengthen the welding length (i.e., to form the strip-shaped connection area), and the set extension edge needs to be designed to slow deformation to prevent stress concentration.

[0036] The two bowl-shaped semicircles are welded to form a complete bowl-shaped fastener by groove penetration welding at the site. After the complete bowl-shaped fastener is completed, the bowl-shaped fastener is tightly fastened on the bolt ball, and then the steel bar is straightened and tightly fixed to the tension rod with a hoop. After the steel bar is fixed, the steel bar is welded to the tension rod one by one through fillet welds, and the fillet welds are determined by calculation.

[0037] In another embodiment, the connecting member can be replaced by a steel wire with the same mechanical properties. In the case of low use requirements, the steel bar and the tension rod can be bonded with structural adhesive instead of welding.

[0038] The utility model is connected by a bowl-shaped buckle part and a bolt ball buckle. This connection method is stable, the force-bearing area is a force-bearing surface, the force is stable, and welding can be avoided. The bowl-shaped buckle part and the steel bar can be connected by slow deformation and increasing the weld length (i.e. forming the strip-shaped connection area) to prevent stress concentration and increase the force-bearing area, thereby improving the connection stability. The steel bar is clamped by the hoop and welded with the tension rod to form a force-bearing whole. The whole structure is more stable and reliable, and the steel bar is not easy to be misaligned during welding, thereby achieving the fixation of the steel bar.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hinged reinforcement device for a ball tension node, characterized in that: It comprises a bowl-shaped buckle part, the bowl-shaped buckle part and a connecting part; The bowl-shaped fastening member is fastened to the opposite side of the reinforcement node of the bolt ball, and the bowl-shaped fastening member is connected to the tension rod member connected to the reinforcement node through a plurality of the connecting members; The two ends of the connecting member are respectively fixedly connected to the bowl-shaped buckle member and the tension rod member; The reinforced node is a tension node on the bolt ball with insufficient tensile bearing capacity.

2. According to claim 1, a hinged reinforcement device for a spherical tension node is characterized in that: After the connecting member is fixedly connected to the tension rod, a strip-shaped connecting area is formed.

3. According to claim 1, a hinged reinforcement device for a spherical tension node is characterized in that: A hoop member which is tightly clamped to the connecting member is installed on the tension rod member, and the hoop member is located in the front part of the strip connecting area.

4. According to claim 1, a hinged reinforcement device for a spherical tension node is characterized in that: The fixed connection is achieved by welding, and the connecting piece, the bowl-shaped buckle piece and the tension rod are made of the same material or materials with good weldability.

5. The hinged reinforcement device for a spherical tension node according to claim 1, characterized in that: The bowl-shaped buckle is formed by welding at least two bowl-shaped units.

6. The hinged reinforcement device for a spherical tension node according to claim 1, characterized in that: The connecting pieces are steel bars or steel wires, and there are four of them, which are evenly arranged.

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