Cantilever truss core penetrating inhaul cable tensioning tool and construction method

Abstract

The invention relates to a cantilever truss core-penetrating inhaul cable tensioning tool and a construction method, and relates to the technical field of building construction.The cantilever truss core-penetrating inhaul cable tensioning tool comprises a sleeve piece clamped and sleeved at one connecting end of an inhaul cable, a tensioning oil jack connected with the other end of the sleeve piece in an abutting-against mode, and a tensioning oil cylinder connected with the tensioning oil jack in an abutting-against mode, the adjusting rod is inserted into the tensioning oil jack and extends into the sleeve piece, one end of the adjusting rod is connected with the inhaul cable, the tensioning pieces are arranged at the two ends of the inhaul cable, and jacking force can be generated on the inhaul cable through the tensioning pieces in the construction process, so that the connecting piece connected with the inhaul cable can extend outwards from the building structure; in the tensioning process, the connecting piece can be positioned by twisting the first nut and the second nut, each inhaul cable can be fixed after being pulled once, and the tensioning tool is of a modular structure, convenient to mount and dismount, capable of being recycled, simple in construction, convenient and fast to operate and high in tensioning construction efficiency.

Description

Technical Field

[0001] The invention relates to the field of building construction, and in particular to a cantilever truss core-penetrating cable tensioning tool and a construction method. Background Art

[0002] In construction projects, cables are often installed on steel structures during construction. Installing cables can improve the overall stability and bearing capacity of the steel structure and effectively offset the tensile stress generated by external loads. However, in the process of installing cables, how to properly tension them is an inevitable problem. Therefore, measures need to be provided to solve the problem of how to effectively tension the cables. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art, provide a cantilever truss core-through cable tensioning tool and a construction method, and solve the existing problem of how to effectively tension the cable.

[0004] The technical solution to achieve the above purpose is: a cantilever truss core-through cable tensioning tooling, comprising:

[0005] A set of sleeves clamped on a connecting end of the cable, the end of the set of sleeves abutting against the cantilever truss;

[0006] a tension oil top abutting against the other end of the kit;

[0007] An adjusting rod is inserted into the tensioning oil top and extends into the kit, one end of the adjusting rod is connected to the cable, and the other end of the adjusting rod is provided with a fastener, the fastener abuts against the tensioning oil top, and the tensioning oil top applies a thrust force to the fastener so that the fastener pushes the adjusting rod in a direction away from the kit, thereby making the adjusting rod drive the connecting end of the cable to move together, thereby achieving tensioning of the cable.

[0008] The technical solution of the present invention is further improved in that: the kit includes a vertical cylinder, a top plate connected to the vertical cylinder, and at least two stiffening plates connected to the vertical cylinder.

[0009] The technical solution of the present invention is further improved in that: at least two operating holes are provided on the vertical cylinder.

[0010] The technical solution of the present invention is further improved in that: an opening is provided on the top plate.

[0011] A further improvement of the technical solution of the present invention is that the stiffening plates are arranged at intervals.

[0012] The technical solution of the present invention is further improved in that: the adapter portion includes a screw hole provided on a side of the adjustment rod close to the cable and a connecting piece connected to the cable.

[0013] A further improvement of the technical solution of the present invention lies in that: the screw hole on the adjusting rod can be screwed onto the connecting piece.

[0014] A further improvement of the technical solution of the present invention lies in that: a fixing piece is connected to one side of the tensioning oil jack close to the kit, and the fixing piece is connected to the kit.

[0015] A further improvement of the technical solution of the present invention lies in that: the adjusting rod is a screw rod.

[0016] A construction method of a tensioning tool for a core-passing cable of a cantilever truss includes the following steps:

[0017] Step 1: Provide a kit, sleeved the kit on one connection end of the cable, and abut the end of the kit against the cantilever truss.

[0018] Step 2: Provide a tensioning oil jack and an adjusting rod, insert the adjusting rod into the tensioning oil jack, extend it into the kit and connect it to the cable, install a fastener at the other end of the adjusting rod, adjust the fastener so that the fastener and the end of the kit clamp the tensioning oil jack, start the tensioning oil jack, apply a jacking force to the fastener to push the adjusting rod in a direction away from the kit, and then make the adjusting rod drive the connection end of the cable to move together, thereby realizing the tensioning of the cable.

[0019] Using the above technical solution, compared with the prior art, the technical effects achieved by the present invention are:

[0020] The present invention provides a tensioning tool and a construction method for a core-passing cable of a cantilever truss. By arranging tensioning parts at both ends of the cable, a jacking force can be generated on the cable through the tensioning parts during the construction process, so that the connecting piece connecting the cable can extend outwards from the building structure, thereby generating a tensioning force on the cable. And during the tensioning process, the connecting piece can be positioned by twisting the first nut and the second nut, so that the cable can be fixed every time it is tensioned. The tensioning tool has a modular structure, is convenient for installation and disassembly, can be recycled, has simple construction, convenient operation, and high tensioning construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a connection diagram of the cable head and the cable of a tensioning tool and a construction method for a core-passing cable of a cantilever truss according to the present invention.

[0022] Figure 2 It is a side view of the cable head of a tensioning tool and a construction method for a core-passing cable of a cantilever truss according to the present invention.

[0023] Figure 3 It is a three-dimensional view of the kit of a tensioning tool and a construction method for a core-passing cable of a cantilever truss according to the present invention.

[0024] Figure 4 This is the connection diagram of the tensioning part and the cable head section for a cantilever truss core-piercing cable tensioning tooling and construction method of the present invention.

[0025] Figure 5 This is the plan view of the kit for a cantilever truss core-piercing cable tensioning tooling and construction method of the present invention.

[0026] Figure 6 This is the top view of the kit for a cantilever truss core-piercing cable tensioning tooling and construction method of the present invention.

[0027] In the figure: 1. Cable; 2. Anchor cup; 3. Connector; 4. Gasket; 5. First nut; 6. Second nut; 7. Standing cylinder; 8. Stiffening plate; 9. Top plate; 10. Tensioning oil jack; 11. Adjusting rod; A. Cantilever truss. Detailed implementation manners

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] The present invention provides a cantilever truss core-piercing cable tensioning tooling and construction method. This device can generate a jacking force on the cable by setting tensioning parts on the cable during the construction process, so that the connector connecting the cable can extend outwards from the building structure, having the advantage of generating a tensioning force on the cable. The cantilever truss core-piercing cable tensioning tooling and construction method will be described below.

[0030] Refer to Figure 1 , which shows the connection diagram of the cable head and the cable for a cantilever truss core-piercing cable tensioning tooling and construction method of the present invention. The structure of the cantilever truss core-piercing cable tensioning tooling and construction method of the present invention will be described below in conjunction with Figures 1 to 6 .

[0031] Refer to Figure 1 , Figure 4 , the present invention provides a cantilever truss core-piercing cable tensioning tooling, including: cable 1, tensioning oil jack 10, adjusting rod 11. The kit is sleeved on one connection end of the cable 1, and the end of the kit abuts against the cantilever truss A. The tensioning oil jack 10 abuts against the other end of the kit. The adjusting rod 11 is inserted into the tensioning oil jack 10 and extends into the kit. One end of the adjusting rod 11 is connected to the cable 1, and a fastener is provided at the other end of the adjusting rod 11. The fastener abuts against the tensioning oil jack 10. By applying a jacking force to the fastener through the tensioning oil jack 10, the fastener is made to push the adjusting rod 11 in a direction away from the kit, thereby causing the adjusting rod 11 to drive the connection end of the cable 1 to move together, thus realizing the tensioning of the cable 1.

[0032] Preferably, asFigure 1 , Figure 4 As shown, by placing the kit on the cable 1 extending from one end of the cantilever truss A, the adjusting rod can be directly connected to the cable 1 after passing through the kit, and by using four cables 1 as a group, a group is set on both sides of the cantilever truss A. During the construction process, one side tensions four cables 1 in a clockwise direction, and the other side tensions them in a counterclockwise direction. The cables 1 on both sides can be tensioned synchronously by using a symmetrical tensioning method, and the four cables 1 on each side are divided into four batches, and one cable 1 is tensioned each time. During the tensioning process of the cable 1, it is necessary to apply tension to it step by step, and the tensioning procedure is divided into four levels: pre-tightening → 30% → 60% → 90% → 100% (over-tensioning 5%), and each time the cable 1 is pulled, it is fixed once.

[0033] See also Figure 3 , Figure 5 In a specific embodiment of the present invention, the kit includes a vertical cylinder 7, a top plate 9 connected to the vertical cylinder 7, and at least two stiffening plates 8 connected to the vertical cylinder 7, the vertical cylinder 7 is provided with at least two operating holes, the top plate 9 is provided with an opening, and the stiffening plates 8 are arranged at intervals.

[0034] Furthermore, if Figure 3 , Figure 5 As shown, an operating hole is provided on the vertical cylinder 7, and the operating hole is provided corresponding to the pre-tightening hole. The pre-tightening hole can be operated through the operating hole. Stiffening plates 8 are provided at intervals on the vertical cylinder 7, and the top plate 9 on the vertical cylinder 7 can be supported by the stiffening plates 8 to prevent the top plate 9 from deforming and bending. The vertical cylinder 7 can be passed through the operating hole to directly contact the first nut 5, so that the nut can be tightened and adjusted to fix the tensioning position.

[0035] See also Figure 3 , Figure 4 In a specific embodiment of the present invention, the adapter includes a screw hole provided on a side of the adjusting rod 11 close to the cable 1 and a connecting member 3 connected to the cable 1, and the screw hole on the adjusting rod 11 can be screwed to the connecting member 3.

[0036] Furthermore, if Figure 3 , Figure 4As shown in the figure, one end of the cable 1 extending out of the cantilever truss A is connected with an anchor cup 2. The anchor cup 2 and the cable 1 are connected by pouring to form an integral body. The connecting piece 3 is arranged as a screw rod and is connected with the anchor cup 2, so that the connecting piece 3 can extend out of the cantilever truss A. On the extending part of the connecting piece 3, a first nut 5 and a second nut 6 are screwed. Both the first and second nuts 6 are arranged outside the cantilever truss A. Rotate the first nut 5 and the second nut 6 to adjust them on the connecting piece 3 to fasten the connecting piece 3. By arranging a gasket 4 on the connecting piece 3, the gasket 4 is used to block the nut and the cantilever truss A from each other, so that the nut will not rub against the cantilever truss A during the rotation adjustment, avoiding damage to the nut.

[0037] Furthermore, by arranging an operation hole on the vertical cylinder 7, the operation hole is arranged corresponding to the pre-tightening hole. Through the operation hole, the pre-tightening hole can be accessed for operation to tighten the nut on the connecting piece 3.

[0038] Refer to Figure 4 , in a specific embodiment of the present invention, a fixing piece is connected to the side of the tensioning oil jack 10 close to the kit, and the fixing piece is connected with the kit.

[0039] Preferably, as Figure 4 shown, during the construction process, the tensioning oil jack 10 and the kit are positioned by suspension with a crane, and during the construction, the crane needs to continuously suspend. Through the fixing piece, the tensioning oil jack 10 can be fixed on the kit. When the tensioning oil jack 10 generates a jacking force on the adjusting rod 11, the adjusting rod 11 can jack and pull the cable 1.

[0040] A construction method of a tensioning tool for a core-passing cable of a cantilever truss includes the following steps:

[0041] Step 1: Provide a kit, sleeved the kit on one connection end of the cable, and abut the end of the kit against the cantilever truss.

[0042] Step 2: Provide a tensioning oil jack and an adjusting rod, insert the adjusting rod into the tensioning oil jack, and extend it into the kit to be connected with the cable. Install a fastener at the other end of the adjusting rod, adjust the fastener so that the fastener clamps the tensioning oil jack with the end of the kit, start the tensioning oil jack, apply a jacking force to the fastener to push the adjusting rod in a direction away from the kit, and then the adjusting rod drives the connection end of the cable to move together, thereby realizing the tensioning of the cable.

[0043] The present invention has been described in detail with reference to the embodiments accompanied by drawings. Those of ordinary skill in the art can make various variations of the present invention based on the above description. Therefore, certain details in the embodiments should not constitute a limitation to the present invention, and the protection scope of the present invention will be defined by the scope defined in the appended claims.

Claims

1. A tensioning tooling for core-passing cables of a cantilever truss, characterized in that: include: A set of sleeves clamped on a connecting end of the cable, the end of the set of sleeves abutting against the cantilever truss; a tension oil top abutting against the other end of the kit; An adjusting rod is inserted into the tensioning oil top and extends into the kit, one end of the adjusting rod is connected to the cable, and the other end of the adjusting rod is provided with a fastener, the fastener abuts against the tensioning oil top, and the tensioning oil top applies a thrust force to the fastener so that the fastener pushes the adjusting rod in a direction away from the kit, thereby making the adjusting rod drive the connecting end of the cable to move together, thereby achieving tensioning of the cable.

2. The tensioning tooling for the core-passing cable of the cantilever truss according to claim 1, characterized in that: The kit includes a vertical cylinder, a top plate connected to the vertical cylinder, and at least two stiffening plates connected to the vertical cylinder.

3. The tensioning tooling for the core-piercing cable of the cantilever truss according to claim 2, characterized in that: The vertical cylinder is provided with at least two operating holes.

4. A tensioning tool for core-piercing cables of a cantilever truss according to claim 2, characterized in that: The top plate is provided with an opening.

5. The tensioning tooling for the core-passing cable of the cantilever truss according to claim 2, characterized in that: The stiffening plates are arranged at intervals.

6. The tensioning tooling for the core-passing cable of the cantilever truss according to claim 1, characterized in that: The adapter portion includes a screw hole arranged on a side of the adjusting rod close to the cable and a connecting piece connected to the cable.

7. A tensioning tool for a through-core cable of a cantilever truss according to claim 6, characterized in that: The screw hole on the adjusting rod can be screwed onto the connecting piece.

8. A tensioning tool for core-passing cables of a cantilever truss according to claim 1, characterized in that: A fixing piece is connected to one side of the tensioning oil top close to the set, and the fixing piece is connected to the set.

9. The tensioning tooling for the core-piercing cable of the cantilever truss according to claim 1, characterized in that: The adjusting rod is a screw rod.

10. The construction method of a tensioning tooling for core-passing cables of a cantilever truss according to claim 1, characterized in that: The following steps are involved: Step 1: providing a kit, clamping the kit on a connecting end of the cable, and placing the end of the kit against the cantilever truss; Step 2: Provide a tensioning oil jack and an adjusting rod, insert the adjusting rod into the tensioning oil jack, extend the adjusting rod into the kit and connect with the cable, install a fastener at the other end of the adjusting rod, adjust the fastener so that the fastener and the end of the kit clamp the tensioning oil jack, start the tensioning oil jack, apply a thrust force to the fastener so that the fastener pushes the adjusting rod in a direction away from the kit, and then the adjusting rod drives the connecting end of the cable to move together, thereby achieving tensioning of the cable.

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