Reverse tensioning and jacking device for steel structure

Abstract

The utility model relates to the technical field of truss deviation rectification, in particular to a reverse tensioning and jacking device for a steel structure. Comprising a steel cable, a jacking supporting assembly and a tensioning driving part. The tensioning driving part is fixed on a vertical supporting structure of the steel truss to be rectified and is connected with the end part of the steel cable; the top of the jacking supporting assembly is connected with the middle of the horizontal supporting structure of the steel truss to be rectified, and the bottom of the jacking supporting assembly is in sliding connection with the steel cable. According to the device, when the steel cable drags the steel truss, the stress area between the steel cable and the steel truss can be increased, the traction force applied to the steel truss by the steel cable in the tensioning process is changed into thrust, the deflected part of the steel truss is pushed to reset, and the traction reset effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to truss deviation rectification technical field especially, relates to a steel structure reverse tension jacking device. BACKGROUND

[0002] The steel truss support structure of large span, during the main body structure construction, due to construction procedure and construction management failure and many reasons, leading to the vertical deformation displacement of large span steel structure truss, and the serious quality defect of the horizontal direction deformation displacement of steel structure frame support column, directly influence equipment installation and safe use. In order to guarantee its normal use, and reduce rectification cost, by adopting the way of tension to the offset position of rectification. At present, tension is directly pulled to the offset position of steel truss by steel cable, because the connection between steel cable and steel truss is point connection, thereby direct traction, and when traction force is too large, not only will cause local deformation of steel truss, but also is not conducive to the conduction of traction force. Therefore, it is urgent to solve.

[0003] The above content is only used to assist understanding the technical scheme of the utility model, and does not represent admitting that the above content is the closest prior art. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a steel structure reverse tension jacking device, the device can increase the stress area between steel cable and steel truss when steel cable is pulled to steel truss, and make the traction force that steel cable exerts to steel truss in the tension process become thrust, push the partial reset of steel truss deflection, improve the traction reset effect.

[0005] In order to achieve the purpose, the technical scheme of the utility model is realized, a steel structure reverse tension jacking device, comprising: steel cable, jacking support assembly and tension driving part;The tension driving part is fixed on the vertical support structure of the steel truss to be rectified, and is connected with the end of steel cable;The top of jacking support assembly is connected with the middle part of the horizontal support structure of the steel truss to be rectified, and the bottom is slidably connected with steel cable.

[0006] Preferably, the jacking support assembly includes a vertical rod and a roller;The top of the vertical rod is detachably connected with the middle part of the horizontal support structure of the steel truss to be rectified;The roller is slidably connected with the steel cable.

[0007] Preferably, it further includes a first connecting rod, a second connecting rod and a third connecting rod;Both ends of the first connecting rod, the second connecting rod and the third connecting rod are respectively connected with the rod body of the adjacent vertical rod, and the first connecting rod, the second connecting rod, the third connecting rod and the rod body of the adjacent vertical rod enclose at least two triangular structures.

[0008] Preferably, the roller at the bottom end of the vertical rod has two.

[0009] Preferably, further comprising a connecting bolt and a clamping plate; the connecting bolt is arranged at the top of the vertical rod, the clamping plate is installed on the horizontal support structure of the steel truss to be rectified, and the connecting bolt and the clamping plate constitute a bolt connection.

[0010] Preferably, further comprising an inclined support rod and a horizontal rod; one end of the inclined support rod is connected with the horizontal support structure of the steel truss to be rectified, and the other end is connected with the middle part of the vertical rod; the two ends of the horizontal rod are connected with the vertical rod and the inclined support rod respectively, and the inclined support rod and the horizontal rod and the rod body of the vertical rod enclose a right triangle support structure on one side of the vertical rod.

[0011] Preferably, the right triangle support structure is provided with two, which are located on both sides of the top end of the vertical rod.

[0012] Preferably, the bottom end of the vertical rod is provided with a trapezoidal prism; the top of the trapezoidal prism is connected with the bottom end of the vertical rod; the roller is installed in the groove at the bottom end of the trapezoidal prism, and the two sides of the roller and the groove wall constitute an axle connection.

[0013] The beneficial effects of the utility model lie in:

[0014] (1) the device provided by the utility model can provide a medium for transmitting traction force between the steel truss to be rectified and the steel cable, can increase the stress area between the steel cable and the steel truss to be rectified, and convert the traction force into thrust to push the part of the steel truss deflected to reset, thereby improving the traction reset effect.

[0015] (2) the device provided by the utility model has simple structure and is easy to install, thereby improving the efficiency of the truss rectification construction. DRAWINGS EXPLANATION

[0016] Fig. 1 It is a tensioning traction construction structure schematic view of the utility model;

[0017] Fig. 2 It is a top view of the jacking support assembly structure of the utility model;

[0018] Fig. 3 It is a side view of the tensioning traction construction structure of the utility model.

[0019] MARK EXPLANATION OF DRAWINGS:

[0020] A, the truss to be rectified; 10, the steel cable; 20, the jacking support assembly; 21, the vertical rod; 22, the trapezoidal prism; 23, the roller; 24, the inclined support rod; 25, the horizontal rod; 26, the connecting bolt; 31, the first connecting rod; 32, the second connecting rod; 33, the third connecting rod. CONCRETE IMPLEMENTATION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. In the case of no conflict, the embodiments in the application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Embodiment

[0023] Referring to Figs. 1-3 As shown in the figure:

[0024] The utility model provides a kind of steel structure reverse tension jacking device, comprising: cable 10, jacking support assembly 20 and tension driving part.

[0025] Tension driving part is fixed on the vertical support structure of the steel truss A to be rectified, and is connected with the end of cable 10, the top of jacking support assembly 20 is connected with the middle part of the horizontal support structure of the steel truss A to be rectified, and the bottom forms sliding connection with cable 10.

[0026] Specific construction, tension driving part is used to pull cable 10, to drive cable 10 tensioning;Tensioned cable 10 is used to drive jacking support assembly 20 to push the horizontal support structure of the steel truss A to be rectified, to drive the steel truss A to be rectified to reset.

[0027] Jacking support assembly 20 includes vertical rod 21 and roller 23.The top of vertical rod 21 forms detachable connection with the middle part of the horizontal support structure of the steel truss A to be rectified;Roller 23 forms sliding connection with cable 10.By setting roller 23, the tension of cable 10 is not hindered, so that the tension of cable 10 is better, and the tensioning effect is better.

[0028] It also includes first connecting rod 31, second connecting rod 32 and third connecting rod 33.Both ends of first connecting rod 31, second connecting rod 32 and third connecting rod 33 are connected with the shank of adjacent vertical rod 21 respectively, and specifically, one end of first connecting rod 31 is connected with the upper end of vertical rod 21, and the other end is connected with the middle part of adjacent vertical rod 21;One end of second connecting rod 32 is connected with the lower end of vertical rod 21, and the other end is connected with the connecting node of first connecting rod 31 and adjacent vertical rod 21;Both ends of third connecting rod 33 are respectively connected with the lower end of adjacent two vertical rods 21.This makes first connecting rod 31, second connecting rod 32, third connecting rod 33 and the shank of adjacent vertical rod 21 enclose at least two triangular structures, so as to increase the support stability of jacking support assembly 20 to the horizontal support structure of the steel truss A to be rectified, and increase the effect of traction rectification.

[0029] The two rollers 23 at the bottom end of the vertical rod 21 are used to push the vertical rod 21 by the two steel cables 10 during the traction correction construction, so as to increase the pushing force of the vertical rod 21 on the horizontal support structure of the steel truss A to be corrected, and improve the tensioning effect.

[0030] The utility model also comprises a connecting bolt 26 and a clamping plate, the connecting bolt 26 is arranged at the top of the vertical rod 21, the clamping plate is installed on the horizontal support structure of the steel truss A to be corrected, and the connecting bolt 26 and the clamping plate constitute a bolt connection, which is convenient for disassembly and assembly.

[0031] The utility model also comprises an inclined support rod 24 and a horizontal rod 25, one end of the inclined support rod 24 is connected with the horizontal support structure of the steel truss A to be corrected, the other end is connected with the middle part of the vertical rod 21, and the two ends of the horizontal rod 25 are connected with the vertical rod 21 and the inclined support rod 24 respectively, and the inclined support rod 24 and the horizontal rod 25 and the rod body of the vertical rod 21 enclose a right-angled triangle support structure on one side of the vertical rod 21, and the right-angled triangle support structure is provided with two and is located on the two sides of the top end of the vertical rod 21.

[0032] By arranging the right-angled triangle support structure, the stability of the connection between the vertical rod 21 and the horizontal support structure of the steel truss A to be corrected can be increased, and the stress area is also increased, so that when the vertical rod 21 pushes the horizontal support structure of the steel truss A to be corrected, the pushing force can be better transmitted to the horizontal support structure of the steel truss A to be corrected, and the construction effect of traction correction is improved.

[0033] A trapezoidal prism 22 is arranged at the bottom end of the vertical rod 21, the top of the trapezoidal prism 22 is connected with the bottom end of the vertical rod 21, and the roller 23 is installed in the groove at the bottom end of the trapezoidal prism 22, and the two sides of the roller 23 are connected with the groove walls by shafts. By arranging the trapezoidal prism 22, the stress area of the bottom of the vertical rod 21 is increased, so that more steel cables 10 can be installed to apply pushing force.

[0034] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A steel structure reverse tension jacking device, characterized in that, The utility model relates to a steel cable (10), a jacking support assembly (20) and a tensioning drive part, the tensioning drive part is fixed on the vertical support structure of the steel truss (A) to be rectified, and is connected with the end of the steel cable (10), the top of the jacking support assembly (20) is connected with the middle part of the horizontal support structure of the steel truss (A) to be rectified, and the bottom forms sliding connection with the steel cable (10). The jacking support assembly (20) comprises a vertical rod (21) and a roller (23), the top of the vertical rod (21) forms detachable connection with the middle part of the horizontal support structure of the steel truss (A) to be rectified, and the roller (23) forms sliding connection with the steel cable (10).

2. A reverse tension jacking device for steel structures according to claim 1, characterized in that, The utility model also comprises a first connecting rod (31), a second connecting rod (32) and a third connecting rod (33), the two ends of the first connecting rod (31), the second connecting rod (32) and the third connecting rod (33) are connected with the rod body of the adjacent vertical rod (21) respectively, and the first connecting rod (31), the second connecting rod (32), the third connecting rod (33) and the rod body of the adjacent vertical rod (21) enclose at least two triangular structures.

3. A reverse tension jacking device for steel structures according to claim 2, characterized in that, The roller (23) at the bottom end of the vertical rod (21) has two.

4. A reverse tension jacking device for a steel structure according to claim 2 or 3, characterized in that, The utility model also comprises a connecting bolt (26) and a clamping plate, the connecting bolt (26) is arranged at the top of the vertical rod (21), the clamping plate is installed on the horizontal support structure of the steel truss (A) to be rectified, and the connecting bolt (26) forms bolt connection with the clamping plate.

5. A reverse tension jacking device for a steel structure according to claim 2 or 3, characterized in that, The utility model also comprises an inclined support rod (24) and a horizontal rod (25), one end of the inclined support rod (24) is connected with the horizontal support structure of the steel truss (A) to be rectified, the other end is connected with the middle part of the vertical rod (21), and the two ends of the horizontal rod (25) are connected with the vertical rod (21) and the inclined support rod (24) respectively, and the inclined support rod (24) and the horizontal rod (25) and the rod body of the vertical rod (21) enclose a right-angled triangle support structure on one side of the vertical rod (21).

6. A reverse tension jacking device for steel structures according to claim 5, characterized in that, The right-angled triangle support structure is provided with two, and is located on the two sides of the top end of the vertical rod (21) respectively.

7. A reverse tension jacking device for steel structures according to claim 6, characterized in that, The bottom end of the vertical rod (21) is provided with a trapezoidal prism (22), the top of the trapezoidal prism (22) is connected with the bottom end of the vertical rod (21), the roller (23) is installed in the groove at the bottom end of the trapezoidal prism (22), and the two sides of the roller (23) form shaft connection with the groove wall.

8. A reverse tension jacking device for a steel structure according to claim 2 or 3, characterized in that, ​

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