CN104989105A - Method for installing and tensioning stay rope among nodes of N-shaped rope network - Google Patents
Method for installing and tensioning stay rope among nodes of N-shaped rope network Download PDFInfo
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- CN104989105A CN104989105A CN201510303938.5A CN201510303938A CN104989105A CN 104989105 A CN104989105 A CN 104989105A CN 201510303938 A CN201510303938 A CN 201510303938A CN 104989105 A CN104989105 A CN 104989105A
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Abstract
A method for installing and tensioning stay rope among nodes of an N-shaped rope network includes the steps that anchoring cylinders, symmetrical about node discs and provided with the stay rope, of the to-be-installed stay rope serve as anchoring points and are fixed through high-strength bolts, active tensioning counterforce points are installed on lengthening sleeves of the to-be-installed stay rope, tensioning rods penetrate through two shoulder pole beams, one ends of the tensioning rods are directly anchored to the ends of the shoulder pole beams through tensioning nuts and thick bottom plates, the other ends of the tensioning rods penetrate through supporting pins and jacks to be anchored through tensioning nuts and serve as tensioning ends, the supporting pins serve as temporary anchoring devices when the stroke of the jacks is controlled by oil pumps, the anchor shoulder pole beams and the jacks of the to-be-installed stay rope are repeatedly tensioned and dragged till fork lug holes of the to-be-installed stay rope and pin holes of the node disc are overlapped and connected through fork pins so that the stay rope can be installed and tensioned among the nodes. By means of the method, under the conditions of limited counterforce space, difficult counterforce point search and the like, the large tensioning force required for installing the stay rope can be met, detaching, assembling and constructing are facilitated, and installing quality and work efficiency are improved.
Description
Technical field
The present invention relates to a kind of installation method for stretching of prestressed cable, a kind of method of particularly drag-line installation and stretch-draw between " N " type rope net node.
Background technology
For some large-scale dome supporting structure, its dome supporting structure adopts large-scale cable net structure, i.e. " N " type rope net, some drag-lines (being also main rope), several nodes composition should be comprised by " N " type rope net, by node contacts between main rope, represent drag-line between node see Fig. 4, i, j represents the intermediate node of drag-line, and each node has many drag-lines; Described drag-line generally adopts double fork ear type length-fixed structure, and node structure is disc format, and disc-shaped structure circumference is divided into six pin-and-holes, and pin-and-hole is connected with drag-line respectively; General rope net has multiple node plate, with the cable net structure that rope is large-scale with dish formation one; Need during rope net forming between two between node plate two fork ear main rope carry out force stretch-draw, but because rope net is in multi-dimensional spatial structure, pin joint quality of fit is high, Spatial Multi-Dimensional degree changes, and rope net is flexible structure, between node, a drag-line space stress docking technique difficult problem is large, adopts conventional two fork ear stretch-draw accurately to connect and exactitude position, and two fork ear main rope length-fixed structure, all do not have to use for reference the method for stretching for fixed length drag-line between " N " type rope net node at home and abroad.
Summary of the invention
The object of this invention is to provide cable tension construction method between one " N " type rope net node, this method provide a kind of method of convenient installation double fork ear type fixed length drag-line, in the situations such as counter-force limited space, difficult searching counter-force point, the powerful stretching force met needed for drag-line installation can be provided, be convenient to again dismounting and construction, improve installation quality and work efficiency; To solve the problems referred to above that prior art exists.
The technical scheme solved the problem is: a kind of method of drag-line installation and stretch-draw between " N " type rope net node, between described " N " type rope net node, drag-line comprises cable body, is positioned at the fork ear at cable body two ends, and the tensioning equipment assembly for stretching construction comprises: jack, spike, shoulder pole girder, tension rod, tensioning nut and high-strength bolt;
Shoulder pole girder for the tensioning equipment assembly of stretching construction has two covers, often overlapping shoulder pole girder for splitting two halves formula structure, having for the arc groove by anchor-hold cylinder in the middle of monolithic shoulder pole girder, and respectively there are arc groove for installing tension rod and bolt hole in both sides;
Between described " N " type rope net node drag-line install and the method for stretch-draw be adopt be about to install drag-line about on the anchorage drum installing drag-line of node plate symmetry as anchor point, and to be fixed by high-strength bolt; Initiatively stretch-draw counter-force point is arranged on by installing on the anchorage drum of drag-line; Tension rod is through two cover shoulder pole girders, and one end tensioning nut and hassock plate are directly anchored at shoulder pole beam-ends, and the other end also uses tensioning nut anchoring, as stretching end through spike and jack; By the stroke of oil pump control jack, utilize spike as temporary anchoring device, to being about to ground tackle shoulder pole girder and the jack stretch-draw traction repeatedly of installing drag-line, until the fork earhole being about to install drag-line is connected with the heavy merga pass bolt of the pin-and-hole of node plate, realizes drag-line between node and install and stretch-draw.
Its further technical scheme is that the method comprises the following steps:
The shoulder pole girder of A, installation anchor point: the both sides two panels monolithic shoulder pole girder of a set of shoulder pole girder being arranged on respectively the anchorage drum of the drag-line installed, and fixed by high-strength bolt;
The shoulder pole girder of B, installation stretch-draw counter-force point: the two panels monolithic shoulder pole girder of another set of shoulder pole girder is arranged on respectively by installing on the ground tackle sleeve of drag-line;
C, installation jack, spike, shoulder pole girder and tension rod: by tension rod through two cover shoulder pole girders, one end tensioning nut is directly anchored at the shoulder pole beam-ends of anchor point, and the other end also uses tensioning nut anchoring, as stretching end through spike and jack;
D, stretch-draw: by the stroke of oil pump control jack, force the fork ear being about to installation drag-line near the pin-and-hole of node plate, the fork ear of drag-line is installed away from the pin-and-hole of node plate if be about to, then can utilize tensioning nut and spike as temporary anchoring device to shoulder pole girder be about to install drag-line and carry out temporary fixed, then to jack release oil return, after tightening the tensioning nut of jack rear end, then stretch-draw is carried out, constantly repeatedly, until complete the installation of drag-line bolt;
E, anchoring: when the fork earhole being about to install drag-line overlaps with the pin-and-hole of node plate, install the fork earhole of drag-line and the pin-and-hole of node plate by the bolt being used for connecting drag-line fork ear and node plate through being about to, will by installation anchor-hold in node plate.
Its further technical scheme be, for being used for by the diameter of the arc groove of anchor-hold cylinder 4 ~ 5mm larger than the anchorage drum diameter of drag-line in the middle of the monolithic shoulder pole girder of the tensioning equipment assembly of stretching construction, diameter than the tension rod diameter large 2 ~ 3mm of both sides for installing the arc groove of tension rod.
Owing to taking said structure, between the present invention's a kind of " N " type rope net node, cable tension construction method has following beneficial effect:
Between " N " type rope net node that 1, between one of the present invention " N " type rope net node, cable tension construction method adopts, cable tension device assembly structure is ingenious, practical, can ensure construction effect; Between " N " type rope net node, the monolithic shoulder pole girder of cable tension device assembly is middle has for the arc groove by anchor-hold cylinder, the through hole of two arc groove compositions just compresses anchor-hold cylinder, utilize step on guy anchor cup as sticking point, prevent shoulder pole girder from sliding on dragline anchorage, bring the effect that dragline anchorage zinc coat and drag-line thermal shrinkable sleeve are not destroyed.
2, because the wherein shoulder pole girder of this device assembly is arranged on existing drag-line, on this Cable forces direction with can using pin as rotation between the drag-line of node plate symmetry, be beneficial to Ben Lasuo and node plate in stressed lower accurate installation; Do not need to set up powerful counterforce device again, bring the effect of easy accessibility, constructability.
3, because shoulder pole girder is designed to the form of left and right two panels symmetry, connect into an entirety by high-strength bolt, bring effect that is safe and reliable, easy accessibility.
Below in conjunction with drawings and Examples, the technical characteristic of cable tension construction method between the present invention's a kind of " N " type rope net node is described further.
Accompanying drawing explanation
Fig. 1: between one of the present invention " N " type rope net node cable tension construction method adopt " N " type rope net node between cable tension device assembly structure and install and use state reference map;
The top view of Fig. 2: Fig. 1;
Fig. 3-1: the structural representation (under two panels assembled state) of the shoulder pole girder of cable tension device assembly between " N " type rope net node;
The single chip architecture schematic diagram of shoulder pole girder shown in Fig. 3-2: Fig. 3-1;
Fig. 4: " N " type cable net structure schematic diagram.
In Fig. 1 ~ Fig. 3-2:
1-jack, 2-spike; 3-shoulder pole girder, 31-high-strength bolt, 32-tension rod half slot, 33-bolt hole, 34-cable body anchorage drum place arc groove;
74-is about to the drag-line installed; 7401-pitches ear; 5-is for connecting the bolt of drag-line fork ear and node plate, 6-node plate, the pin-and-hole in 601-node plate;
71,72,73,75, the drag-line that installed of 76-, 9-tensioning nut, 10-tension rod.
In Fig. 4: drag-line between i-" N " type rope net node; J-" N " type rope net node.
Detailed description of the invention
Embodiment one:
Cable tension device assembly between a kind of " N " type rope net node:
Between described " N " type rope net node, drag-line comprises cable body, is positioned at the fork ear at cable body two ends, is positioned at node drag-line cable body circumferentially and is connected to form " N " type rope net drag-line and joint system by pitching ear and bolt and node plate
;
Be somebody's turn to do cable tension device assembly between " N " type rope net node to comprise: jack 1, spike 2, shoulder pole girder 3, tension rod 10, tensioning nut 9 and high-strength bolt 31;
Described shoulder pole girder 3 has two covers, often overlapping shoulder pole girder 3 for splitting two halves formula structure, having for the arc groove 34 by anchor-hold cylinder in the middle of monolithic shoulder pole girder, and respectively there are arc groove 32 for installing tension rod and bolt hole 33 in both sides;
Under using state, as anchor point on the anchorage drum that a set of shoulder pole girder is arranged on the drag-line installed, and fixed by high-strength bolt 31; Another set of shoulder pole girder is then arranged on the anchorage drum by installation drag-line as counter-force point; Tension rod 10 is through two cover shoulder pole girders, and one end tensioning nut 9 and hassock plate 8 are directly anchored at shoulder pole beam-ends, and the other end also uses tensioning nut 9 anchoring, as stretching end through spike 2 and jack 1.
Be used for by the diameter of the arc groove 34 of anchor-hold cylinder 4 ~ 5mm larger than the anchorage drum diameter of drag-line in the middle of monolithic shoulder pole girder, both sides are for the diameter 2 ~ 3mm larger than tension rod diameter of the arc groove 32 installing tension rod.
Embodiment two:
A kind of method for stretching being used for drag-line between " N " type rope net node, it is that described in employing embodiment one, between " N " type rope net node, cable tension device assembly implements the method for cable tension between " N " type rope net node; It is adopt be about to install drag-line about on the anchorage drum installing drag-line 71 of node plate symmetry as anchor point, and to be fixed by high-strength bolt; Initiatively stretch-draw counter-force point is arranged on the anchorage drum of the drag-line 74 being about to installation; Tension rod 10 is through two cover shoulder pole girders, and one end tensioning nut is directly anchored at shoulder pole beam-ends, and the other end also uses tensioning nut anchoring, as stretching end through spike and jack; By the stroke of oil pump control jack, utilize spike as temporary anchoring device, thus realize the installation of drag-line and the method for stretch-draw.
It comprises the following steps:
The shoulder pole girder of A, installation anchor point: the both sides two panels monolithic shoulder pole girder of a set of shoulder pole girder 3 being arranged on respectively the anchorage drum of the drag-line 71 installed, and fixed by high-strength bolt;
The shoulder pole girder of B, installation stretch-draw counter-force point: the two panels monolithic shoulder pole girder of another set of shoulder pole girder 3 is arranged on respectively by installing on the ground tackle sleeve of drag-line 74;
C, installation jack, spike, shoulder pole girder and tension rod: by tension rod 10 through two cover shoulder pole girders, one end tensioning nut 9 is directly anchored at the shoulder pole beam-ends of anchor point, and the other end also uses tensioning nut 9 anchoring, as stretching end through spike 2 and jack 1;
D, stretch-draw: by the stroke of oil pump control jack 1, force the fork ear 7401 being about to installation drag-line 74 near the pin-and-hole 601 of node plate, the fork ear 7401 of drag-line 74 is installed away from the pin-and-hole 601 of node plate if be about to, then can utilize tensioning nut 9 and spike 2 as temporary anchoring device to shoulder pole girder be about to install drag-line 74 and carry out temporary fixed, then to jack 1 release oil return, after tightening the tensioning nut of jack rear end, carry out stretch-draw again, constantly repeatedly, until complete the installation of drag-line bolt;
E, anchoring: when fork ear 7401 hole of drag-line 74 overlaps with the pin-and-hole 601 of node plate, the bolt 5 being used for connecting drag-line fork ear and node plate being installed the fork earhole 7401 of drag-line 74 and the pin-and-hole 601 of node plate through being about to, will be anchored in node plate 6 by installation drag-line 74.
Claims (3)
1.
onethe method of drag-line installation and stretch-draw between " N " type of kind rope net node, between described " N " type rope net node, drag-line comprises cable body, is positioned at the fork ear at cable body two ends, and the tensioning equipment assembly for stretching construction comprises: jack, spike, shoulder pole girder, tension rod, tensioning nut and high-strength bolt; It is characterized in that:
Shoulder pole girder for the tensioning equipment assembly of stretching construction has two covers, often overlap shoulder pole girder for splitting two halves formula structure, have for the arc groove (34) by anchor-hold cylinder in the middle of monolithic shoulder pole girder, respectively there are arc groove (32) for installing tension rod and bolt hole (33) in both sides;
Between described " N " type rope net node drag-line install and the method for stretch-draw be adopt be about to install drag-line about on the anchorage drum installing drag-line of node plate symmetry as anchor point, and to be fixed by high-strength bolt; Initiatively stretch-draw counter-force point is arranged on by installing on the anchorage drum of drag-line; Tension rod is through two cover shoulder pole girders, and one end tensioning nut and hassock plate are directly anchored at shoulder pole beam-ends, and the other end also uses tensioning nut anchoring, as stretching end through spike and jack; By the stroke of oil pump control jack, utilize spike as temporary anchoring device, to being about to ground tackle shoulder pole girder and the jack stretch-draw traction repeatedly of installing drag-line, until the fork earhole being about to install drag-line is connected with the heavy merga pass bolt of the pin-and-hole of node plate, realizes drag-line between node and install and stretch-draw.
2. the method for drag-line installation and stretch-draw between one according to claim 1 " N " type rope net node, is characterized in that:
The method comprises the following steps:
The shoulder pole girder of A, installation anchor point: the both sides two panels monolithic shoulder pole girder of a set of shoulder pole girder (3) being arranged on respectively the anchorage drum of the drag-line installed, and fixed by high-strength bolt;
The shoulder pole girder of B, installation stretch-draw counter-force point: the two panels monolithic shoulder pole girder of another set of shoulder pole girder (3) is arranged on respectively by installing on the ground tackle sleeve of drag-line;
C, installation jack, spike, shoulder pole girder and tension rod: by tension rod (10) through two cover shoulder pole girders, one end tensioning nut (9) is directly anchored at the shoulder pole beam-ends of anchor point, the other end through spike (2) and jack (1) and with tensioning nut (9) anchoring, as stretching end;
D, stretch-draw: by the stroke of oil pump control jack (1), force the pin-and-hole (601) of the close node plate of the fork ear (7401) being about to install drag-line (74), the fork ear (7401) of drag-line is installed away from the pin-and-hole (601) of node plate if be about to, then can utilize tensioning nut (9) and spike (2) as temporary anchoring device to shoulder pole girder be about to install drag-line and carry out temporary fixed, then to jack (1) release oil return, after tightening the tensioning nut of jack rear end, carry out stretch-draw again, constantly repeatedly, until complete the installation of drag-line bolt;
E, anchoring: when being about to the installation fork earhole (7401) of drag-line and overlapping with the pin-and-hole (601) of node plate, the bolt (5) being used for connecting drag-line fork ear and node plate being installed the fork earhole (7401) of drag-line and the pin-and-hole (601) of node plate through being about to, will be anchored in node plate by installation drag-line (74).
3. a kind of method of drag-line installation and stretch-draw between " N " type rope net node according to claim 1, it is characterized in that, for being used for by the diameter of the arc groove (34) of anchor-hold cylinder 4 ~ 5mm larger than the anchorage drum diameter of drag-line in the middle of the monolithic shoulder pole girder of the tensioning equipment assembly of stretching construction, both sides are for installing the diameter 2 ~ 3mm larger than tension rod diameter of the arc groove (32) of tension rod.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105672359A (en) * | 2016-04-07 | 2016-06-15 | 中铁隧道集团二处有限公司 | Tensioning equipment for butting of PC draglines of tube joints of immersed tube tunnel and construction method |
| CN107769142A (en) * | 2017-11-30 | 2018-03-06 | 国家电网公司 | A kind of power transmission line wind biases the pulling force release device of rope |
| CN107840211A (en) * | 2017-12-04 | 2018-03-27 | 柳州欧维姆机械股份有限公司 | One kind is used for FAST cable net structure data wire connecton layouts and method |
| CN108221668A (en) * | 2018-02-02 | 2018-06-29 | 柳州桂桥缆索有限公司 | A kind of adjustable architectural engineering drag-line and its method for stretching |
| CN109137763A (en) * | 2018-10-29 | 2019-01-04 | 招商局重庆交通科研设计院有限公司 | Drag-line cutter device and drag-line Demolition Construction method |
| CN109295859A (en) * | 2018-10-18 | 2019-02-01 | 柳州欧维姆机械股份有限公司 | A kind of front fulcrum hangs the tensioning equipment and its stretch-draw construction method of blue construction |
| CN109775628A (en) * | 2019-01-29 | 2019-05-21 | 北京城建集团有限责任公司 | A kind of double rope lifting devices and its construction method |
| CN109914253A (en) * | 2019-03-20 | 2019-06-21 | 中交路桥建设有限公司 | A kind of aerial Dock With Precision Position system and method for suspension bridge girder steel |
| CN114150891A (en) * | 2021-12-30 | 2022-03-08 | 柳州欧维姆工程有限公司 | Inhaul cable replacing method for space cable net supporting structure |
| CN115110672A (en) * | 2022-06-16 | 2022-09-27 | 广东省第四建筑工程有限公司 | Construction method of prestressed single-layer bidirectional cable net structure curtain wall |
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| CN105672359A (en) * | 2016-04-07 | 2016-06-15 | 中铁隧道集团二处有限公司 | Tensioning equipment for butting of PC draglines of tube joints of immersed tube tunnel and construction method |
| CN107769142A (en) * | 2017-11-30 | 2018-03-06 | 国家电网公司 | A kind of power transmission line wind biases the pulling force release device of rope |
| CN107769142B (en) * | 2017-11-30 | 2023-09-08 | 国家电网公司 | Tension releasing device for wind deflection prevention inhaul cable of power transmission line |
| CN107840211A (en) * | 2017-12-04 | 2018-03-27 | 柳州欧维姆机械股份有限公司 | One kind is used for FAST cable net structure data wire connecton layouts and method |
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| CN108221668A (en) * | 2018-02-02 | 2018-06-29 | 柳州桂桥缆索有限公司 | A kind of adjustable architectural engineering drag-line and its method for stretching |
| CN108221668B (en) * | 2018-02-02 | 2023-11-24 | 柳州桂桥缆索有限公司 | Adjustable inhaul cable for constructional engineering and tensioning method thereof |
| CN109295859B (en) * | 2018-10-18 | 2023-12-19 | 柳州欧维姆机械股份有限公司 | Tensioning device for front supporting point hanging construction and tensioning construction method thereof |
| CN109295859A (en) * | 2018-10-18 | 2019-02-01 | 柳州欧维姆机械股份有限公司 | A kind of front fulcrum hangs the tensioning equipment and its stretch-draw construction method of blue construction |
| CN109137763A (en) * | 2018-10-29 | 2019-01-04 | 招商局重庆交通科研设计院有限公司 | Drag-line cutter device and drag-line Demolition Construction method |
| CN109137763B (en) * | 2018-10-29 | 2023-12-01 | 招商局重庆交通科研设计院有限公司 | Cable cutting device and cable dismantling construction method |
| CN109775628A (en) * | 2019-01-29 | 2019-05-21 | 北京城建集团有限责任公司 | A kind of double rope lifting devices and its construction method |
| CN109775628B (en) * | 2019-01-29 | 2024-04-30 | 北京城建集团有限责任公司 | Double-rope lifting device and construction method thereof |
| CN109914253A (en) * | 2019-03-20 | 2019-06-21 | 中交路桥建设有限公司 | A kind of aerial Dock With Precision Position system and method for suspension bridge girder steel |
| EP3936738B1 (en) | 2020-07-15 | 2023-02-15 | Soletanche Freyssinet | Cable drain wire |
| CN114150891A (en) * | 2021-12-30 | 2022-03-08 | 柳州欧维姆工程有限公司 | Inhaul cable replacing method for space cable net supporting structure |
| CN115110672A (en) * | 2022-06-16 | 2022-09-27 | 广东省第四建筑工程有限公司 | Construction method of prestressed single-layer bidirectional cable net structure curtain wall |
| CN115992566B (en) * | 2023-03-23 | 2023-05-30 | 北京市建筑工程研究院有限责任公司 | Rigid-flexible orthogonal cable network structure and forming method thereof |
| CN115992566A (en) * | 2023-03-23 | 2023-04-21 | 北京市建筑工程研究院有限责任公司 | Rigid-flexible orthogonal cable network structure and forming method thereof |
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