CN203531130U - Length-adjustable pressure rod used for pre-stressed cable-strut grid structure and jacking device - Google Patents
Length-adjustable pressure rod used for pre-stressed cable-strut grid structure and jacking device Download PDFInfo
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- CN203531130U CN203531130U CN201320349195.1U CN201320349195U CN203531130U CN 203531130 U CN203531130 U CN 203531130U CN 201320349195 U CN201320349195 U CN 201320349195U CN 203531130 U CN203531130 U CN 203531130U
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- depression bar
- length
- pressure rod
- fixture
- bar
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Abstract
The utility model belongs to the field of a spatial steel structure and especially relates to a length-adjustable pressure rod used for a pre-stressed cable-strut grid structure and a jacking device. In order to resolve problems that a rod member is defined in screwing length by a threaded twist-tensioning method of formation of the pre-stressed cable-strut grid structure, a node member is overlarge and the screwing pressure rod and the node member are poor in reliability of connection and the like, the utility model provides the length-adjustable pressure rod and the jacking device which helps realize the elongating operation of the pressure rod. The length-adjustable pressure rod used for the pre-stressed cable-strut grid structure and the jacking device have following beneficial effects: the length-adjustable pressure rod of the pre-stressed cable-strut grid structure is composed of an upper-segment pressure rod and a lower-segment pressure rod; a length-adjusting device is additionally arranged between the two segments of the pressure rod; by means of the jacking device, elongating operation of the rod member is carried out to the pressure rod; and the dimension of the pressure rod after being elongated is fixed by a fixing member of the length-adjusting device. The length-adjustable pressure rod used for pre-stressed cable-strut grid structure and the jacking device have following beneficial effects: elongating effects of any dimension of the pressure rod are achieved; a larger pre-stressed degree can be provided for the self-balanced pre-stressed cable-strut grid structure; the dimension of the node member is greatly reduced; and elongating operation of the rod member is carried out rapidly and efficiently.
Description
Technical field
The utility model relates to spatial steel structure, relates in particular to a kind of self-balancing type prestressed cable bar network.
Background technology
The spatial steel structure that self-balance prestress rope bar network is comprised of flexible cable and rigidity depression bar, different from common network, the structure basic unit body of this structure is a kind of hexahedron being comprised of flexible cable and depression bar.The rigidity of structure is to obtain from the tension force of drag-line.Due to the constructivity of self-balance prestress rope bar network on special, structural system need adopt the method implementation structure that extends the indirect stretch-draw flexible cable of compression web member to be shaped.The method that realizes the elongation of self-balance prestress rope bar network depression bar that is seen at present document is that screw thread is twisted a method, the stubborn method of described screw thread refers at the two ends of depression bar reverse screw thread is set, in advance the screw thread at two ends is screwed in the node component of end, during structure formation, depression bar is screwed out in the node component at two ends, thereby realize the elongation of depression bar.Screw thread is twisted a method owing to needing to realize the back-out of the relatively large journey of each depression bar in node component on forming technology, therefore structure node member need be made particular design, and size is large, this will cause the remarkable increase of dead load, economy and the aesthetic property of engineering have been affected, and the back-out effect of depression bar is to the larger disturbance of being connected with of depression bar and node, the depression bar after back-out is difficult to guarantee with the reliability being connected of node component.The utility model has provided a kind of adjustable length depression bar for prestressed cable bar network and a supporting apical organ, can in the situation that being connected with node, realize easily by not disturbance depression bar the elongation of depression bar, and the depression bar after extending can be selected provisional or permanently rod member length is fixed, the shaping demand that can coordinate flexibly self-balance prestress rope bar network to be shaped in batches stage by stage, forming process safety, efficient, does not need heavy tensioning equipment.
Summary of the invention
For realizing the self-balance prestress rope bar network method that the depression bar that adopts extends that is shaped, be at present that screw thread is twisted the method for opening, this method need screw out depression bar when implementing from two ends node component, for guaranteeing that depression bar has enough back-out length, the size of each node component in structure will significantly increase, and the depression bar after screwing out and the reliability being connected under high-stress state of node cannot guarantee.For the problems referred to above the utility model, provided an a kind of apical organ that is applicable to the length-adjustable depression bar of prestressed cable bar network and realizes this depression bar length adjustment.Adopt this depression bar can realize the elongation of each depression bar in prestressed cable bar network, to meet the demand of structure formation simple and effective.
The technical solution of the utility model is: the length-adjustable depression bar for prestressed cable bar network is comprised of two sections depression bar, between two sections depression bar, installed length adjuster additional, the operation that the apical organ providing by the utility model can extend the enforcement rod member of this depression bar, the depression bar after elongation relies on the fixture fixed dimension in length adjuster.
1, for a length-adjustable depression bar for prestressed cable bar network, it is characterized in that: the length-adjustable depression bar for prestressed cable bar network is comprised of depression bar 1, connecting rod 2, shrouding 3, fixture 4 four parts; Wherein, connecting rod 2 welds by shrouding 3 and depression bar 1, the dead in line of connecting rod 2 and depression bar 1, and the two sections depression bar 1 that connecting rod 2 connects can slide along the axis direction of depression bar; Fixture 4 is comprised of the semicircle shell of left and right two lobes, be used for fixing depression bar 1 elongation state, the outside dimension of fixture 4 is identical with the outside dimension of depression bar 1, the internal diameter size of fixture 4 is identical with the outside dimension of connecting rod 2, fixture 4 is installation and removal easily, during installation, two halves shell is buckled in to the outside of connecting rod 2, by bolt, fixture 4 is temporarily fixed between two sections depression bar 1, while being permanently fixed, two lobes of fixture 4 adopt the mode of butt weld to weld.Fixture 4 is identical with the type of steels of depression bar 1.
2, a kind of length-adjustable depression bar for prestressed cable bar network extends an apical organ of operation, it is characterized in that: apical organ is by tightening latch 5, form for tightening latch 5 provides the part I 6 of anchoring, part II 7, strut 9 four parts that contact with the sphere nodes member of self-balance prestress rope bar network, part II 7 is comprised of identical left and right two lobes of shape, by settling bolt hole and bolt on it two lobes of part II 7 can be integrated into one, the part II 7 being integrated into one can be free to slide on depression bar 1.The installation process of apical organ is: 1) in close node component 8 place's mounting parts II 7 of depression bar to be extended 1.Part II 7 is comprised of identical left and right two lobes of shape, by settling bolt hole and bolt on it two lobes of part II 7 can be integrated into one.The internal diameter of part II 7 is coordinated mutually with the external diameter of depression bar 1, can guarantee that the part II 7 after installation is free to slide on depression bar 1.2) method being bolted provides part I 6 installation in position of anchoring by each strut 9 and for tightening latch 5.3) stretch-draw tightening latch 5 is installed tightening latch 5 most provides in the prefabricated duct of part I 6 of anchoring.
Wherein, the process of length-adjustable depression bar being implemented to elongation operation is: jacking device is arranged on depression bar to be extended 1, the nut of rotation tightening latch 5 diminishes the size a between nut and tightening latch 5 heads, and this process will diminish the vertical angle α of strut 9, and depression bar 1 is pushed away length.During the raising length and reach preliminary dimension of depression bar 1 by fixture 4 hoops on connecting rod 2, after fixture 4 is fixing with depression bar 1, remove an apical organ tool.When fixture 4 needs when temporary fixed to select suitable bolt and nut standard component fixing to two lobe fixtures 4; In the time of need being permanently fixed, can adopt the mode of butt weld to weld two lobes of fixture 4.
The beneficial effects of the utility model are:
The utility model is mainly reflected in lower several aspect to the contribution of prior art:
1) size of the elongation of rod member and the node component of structure is irrelevant, has solved screw thread and has twisted method requirement to node size in rod member elongation technique.The significantly minimizing of the size of node component, has not only saved steel, has more reduced the deadweight of self-balance prestress rope bar network, and engineering economy is significantly improved.
2) adopt rod member length adjuster of the present utility model can realize the elongation effect of the compression member of arbitrary dimension, shaping demand stage by stage in batches in the time of can meeting self-balance prestress rope bar network and be shaped, can provide larger degree of prestressing for self-balance prestress rope bar network.
3) implementation process is quick, efficient, need to be by heavy tensioning equipment, and the depression bar safety durable after elongation.
Accompanying drawing explanation
Fig. 1 is provided with the depression bar of length tunable arrangement, wherein: depression bar 1, connecting rod 2, shrouding 3, fixture 4;
Fig. 2 is the depression bar of elongation state, wherein: depression bar 1, connecting rod 2, shrouding 3;
Fig. 3 is the wherein elevation of a lobe of fixture 4;
Fig. 4 is fixture 4 top views;
Fig. 5 extends an apical organ schematic diagram of operation for depression bar, wherein: depression bar 1, connecting rod 2, shrouding 3, fixture 4, tightening latch 5, provide the part I 6 of anchoring, the part II 7 contacting with the sphere nodes member of self-balance prestress rope bar network, sphere nodes 8, the strut 9 of self-balance prestress rope bar network for tightening latch 5;
Fig. 6 is the partial sectional view of Fig. 3;
Fig. 7 is the part of Fig. 3 figure that decides what is right and what is wrong.
The specific embodiment
As shown in Figure 1, the length-adjustable depression bar for self-balance prestress rope bar network is comprised of depression bar 1, connecting rod 2, shrouding 3, fixture 4 four parts; Wherein, connecting rod 2 welds by shrouding 3 and depression bar 1, the dead in line of connecting rod 2 and depression bar 1, and the upper and lower two-section depression bar 1 that connecting rod 2 connects can slide along the axis direction of depression bar; Fixture 4 is comprised of the circular shell of left and right two halves, be used for fixing depression bar 1 elongation state, the outside dimension of fixture 4 is identical with the outside dimension of depression bar 1, the internal diameter size of fixture 4 is identical with the outside dimension of connecting rod 2, fixture 4 is installation and removal easily, during installation, two halves shell is buckled in to the outside of connecting rod 2, by bolt, fixture 4 is temporarily fixed between upper and lower two-section depression bar 1, in the time of need being permanently fixed, also two lobes of fixture 4 can be welded together.Fixture 4 is identical with the type of steels of depression bar 1.
As shown in Figure 2, the apical organ that the length-adjustable depression bar of prestressed cable bar network is implemented to extend operation by tightening latch 5, form for tightening latch 5 provides part I 6, part II 7, strut 9 four parts of anchoring, by the process of its installation is: 1) in nearly node component 8 place's mounting parts II 7 of depression bar to be extended 1.For realizing the installation of part II 7, part II 7 is comprised of identical left and right two lobes of shape, by settling bolt hole and bolt on it two lobes of part II 7 can be integrated into one.The internal diameter of part II 7 is coordinated mutually with the external diameter of depression bar 1, can guarantee that the part II 7 after installation is free to slide on depression bar 1.2) method being bolted provides part I 6 installation in position of anchoring by each strut 9 and for tightening latch 5.3) stretch-draw tightening latch 5 being installed to tightening latch 5 most provides in the prefabricated duct of part I 6 of anchoring.
By the process that the apical organ shown in Fig. 2 is implemented elongation operation to length-adjustable depression bar in prestressed cable bar network, be: jacking device is arranged on depression bar to be extended 1, the nut of rotation tightening latch 5 diminishes the size a between nut and tightening latch 5 heads, this process will diminish the vertical angle α of strut 9, and depression bar 1 is pushed away length.During the raising length and reach preliminary dimension of depression bar 1 by fixture 4 hoops on connecting rod 2, after fixture 4 is fixing with depression bar 1, remove an apical organ tool.When fixture 4 needs when temporary fixed to select suitable bolt and nut standard component fixing to two lobe fixtures 4; In the time of need being permanently fixed, can adopt the mode of butt weld to weld two lobes of fixture 4.
Claims (2)
1. for a length-adjustable depression bar for prestressed cable bar network, it is characterized in that: the length-adjustable depression bar for prestressed cable bar network is comprised of depression bar (1), connecting rod (2), shrouding (3), fixture (4) four parts; Wherein, connecting rod (2) welds by shrouding (3) and depression bar (1), the dead in line of connecting rod (2) and depression bar (1), and the two sections depression bar (1) that connecting rod (2) connects can slide along the axis direction of depression bar; Fixture (4) is comprised of the semicircle shell of left and right two lobes, be used for fixing depression bar (1) elongation state, the outside dimension of fixture (4) is identical with the outside dimension of depression bar (1), the internal diameter size of fixture (4) is identical with the outside dimension of connecting rod (2), fixture (4) is installation and removal easily, during installation, two halves shell is buckled in to the outside of connecting rod (2), by bolt, fixture (4) is temporarily fixed between two sections depression bar (1), two lobes of fixture while being permanently fixed (4) adopt the mode of butt weld to weld.
2. the length-adjustable depression bar for prestressed cable bar network extends an apical organ of operation, it is characterized in that: an apical organ is by tightening latch (5), for tightening latch (5) provides the part I (6) of anchoring, the part II (7) contacting with the sphere nodes member of self-balance prestress rope bar network, strut (9) four parts form, part II (7) is comprised of identical left and right two lobes of shape, by settling bolt hole and bolt on it two lobes of part II (7) can be integrated into one, the part II (7) being integrated into one can be free to slide on depression bar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320349195.1U CN203531130U (en) | 2013-06-19 | 2013-06-19 | Length-adjustable pressure rod used for pre-stressed cable-strut grid structure and jacking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320349195.1U CN203531130U (en) | 2013-06-19 | 2013-06-19 | Length-adjustable pressure rod used for pre-stressed cable-strut grid structure and jacking device |
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| Publication Number | Publication Date |
|---|---|
| CN203531130U true CN203531130U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320349195.1U Expired - Fee Related CN203531130U (en) | 2013-06-19 | 2013-06-19 | Length-adjustable pressure rod used for pre-stressed cable-strut grid structure and jacking device |
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| Country | Link |
|---|---|
| CN (1) | CN203531130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234184A (en) * | 2013-06-19 | 2014-12-24 | 东北林业大学 | Length-adjustable pressure bar for prestress cable bar grid structure and extension jacking machine |
-
2013
- 2013-06-19 CN CN201320349195.1U patent/CN203531130U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234184A (en) * | 2013-06-19 | 2014-12-24 | 东北林业大学 | Length-adjustable pressure bar for prestress cable bar grid structure and extension jacking machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20150619 |
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| EXPY | Termination of patent right or utility model |