CN109811889B - Saddle-shaped cable net cable spreading installation method under space limited condition - Google Patents
Saddle-shaped cable net cable spreading installation method under space limited condition Download PDFInfo
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- CN109811889B CN109811889B CN201910061780.3A CN201910061780A CN109811889B CN 109811889 B CN109811889 B CN 109811889B CN 201910061780 A CN201910061780 A CN 201910061780A CN 109811889 B CN109811889 B CN 109811889B
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Abstract
The invention discloses a saddle-shaped cable net cable-spreading installation method under a space-limited condition, which solves the problems that the cable net laying efficiency is low, a stand is damaged in the cable net laying process, and potential safety hazards exist in the prior art. The main content of the invention is as follows: firstly, spreading a bearing cable and an anti-wind cable far away from a stand; then, installing lifting tools for the bearing cable from the end far away from the stand in an interval mode; then, lifting the cable net and laying the wind-resistant cables, repeating the process until the cable net is lifted to the top, and then selecting 3-5 bearing cables to lift so that ridges are formed in the middle of the cable net to spread the cable net at the edge of the stand; next, installing and lifting the rest bearing cables, hanging the bearing cables, and then removing all the lifting tools; and finally, installing the wind-resistant cable lifting tools on all the wind-resistant cables and lifting and hanging the wind-resistant cables. The method can avoid cable net laying and high-altitude cable spreading on the stand, improve cable net laying efficiency, ensure that the stand is not damaged, and eliminate potential safety hazards.
Description
Technical Field
The invention relates to a saddle-shaped cable net cable spreading installation method under a space limited condition.
Background
When the cable net is laid on the double-oblique-arch-shaped supporting arch body, the double-oblique-arch-shaped supporting arch body needs to be installed and fixed, and then cable net extension cable installation is carried out on the double-oblique-arch-shaped supporting arch body, so that cable net laying needs to be carried out on a stand on one side of the double-oblique-arch-shaped supporting arch body, meanwhile, high-altitude cable extension needs to be carried out, in the cable net extension cable installation process, damage can be caused on the stand on the side of the double-oblique-arch-shaped supporting arch body, meanwhile, the high-altitude cable extension is not only low in efficiency, but also potential safety hazards exist. Therefore, the saddle-shaped cable net expansion cable installation method under the limited space condition is designed to avoid cable net laying and high-altitude cable expansion on the stand at the body side of the double-oblique-arch bearing arch, improve cable expansion and laying efficiency, eliminate potential safety hazards existing in high-altitude cable expansion, and ensure that the stand at the body side of the double-oblique-arch bearing arch is not damaged during cable net laying, and becomes a technical problem to be solved urgently by technical personnel in the technical field.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the saddle-shaped cable net cable spreading and installing method under the condition of limited space solves the problems that cable net laying efficiency is low, damage can be caused to a stand in the cable net laying process, and potential safety hazards exist due to the fact that cable net laying and high-altitude cable spreading need to be carried out on the stand in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a saddle-shaped cable net cable-spreading installation method under the condition of limited space comprises the following steps:
step 5, continuously repeating the step 4 until the lifting tool goes to the top of the double-oblique-arch bearing arch body, selecting 3-5 bearing cables to install the lifting tool at the middle position of the bearing cable close to the end of the stand, starting to slowly lift after the lifting tool is installed, forming a ridge in the middle of the whole cable net structure at the moment, starting to move the cable nets at two sides close to the stand to the middle, and spreading the cable nets at two edges of the stand;
step 6, after the cable nets at the two edges of the stand are completely spread, installing lifting tools on the rest bearing cables, which are not provided with the lifting tools, close to the stand end, wherein the lifting tools are installed at intervals, one lifting tool is installed at every interval of the bearing cables, which are not provided with the lifting tools, and after the lifting tools are installed, the lifting tools are slowly lifted to the top of the double-oblique-arch bearing arch body and corresponding bearing cables are hung;
step 7, installing lifting tools on all the remaining bearing cables which are not provided with the lifting tools and close to the stand end, slowly lifting the lifting tools to the top of the double-oblique-arch bearing arch body after the lifting tools are installed, hanging the corresponding bearing cables, and then dismantling all the lifting tools;
and 8, installing the wind-resistant cable lifting tools on all the wind-resistant cables, after the wind-resistant cable lifting tools are installed, lifting cable heads of the wind-resistant cables to positions with the same distance from the pin shaft holes through all the wind-resistant cable lifting tools, then carrying out fine adjustment, synchronously controlling the lifting amount of the wind-resistant cable lifting tools until all the wind-resistant cables are hung, and finishing the cable net spreading and lifting.
Further, in the step 2, in the process of spreading the wind-resistant cable, the cable clamp is simultaneously installed, so that the laid cable net is fixed.
Further, in the step 5, when 3-5 bearing cables are selected to be installed on the lifting tool, the bearing cables are selected at intervals, and one bearing cable is selected for installation on the lifting tool every other bearing cable.
Compared with the prior art, the invention has the following beneficial effects:
the invention has wonderful conception and scientific and reasonable design, can effectively avoid the laying of the cable net on the stand, namely, the high-altitude cable expansion is avoided, the potential safety hazard of the high-altitude cable expansion is eliminated, and meanwhile, the stand can be effectively ensured not to be damaged due to the laying of the cable net in the cable net laying process; the cable net is spread and installed according to the method, workers can conveniently spread cables and the cable net spreading efficiency can be effectively improved, meanwhile, the lifting tools of the bearing cables are arranged at intervals, namely one lifting tool is installed every other bearing cable, the cable net lifting efficiency can be effectively improved, the overall installation efficiency of the cable net can be effectively improved, and the cable net installation period can be shortened.
Drawings
FIG. 1 is a state diagram of the load-bearing cable of the present invention spread from a direction away from the stand according to the corresponding installation position on the double-oblique arch support arch.
Fig. 2 is a state diagram of the wind-resistant cable starting to be spread according to the present invention.
FIG. 3 is a state diagram of the lifting tooling installed on the bearing cable at intervals for the first time and lifting the spreading wind-resistant cable.
Fig. 4 is a diagram of the state that all the bearing ropes are lifted to the top and the wind resisting ropes are spread out.
Fig. 5 is a schematic diagram of the cable net of the present invention after being spread and installed.
Fig. 6 is a top view of the cable net of the present invention after installation.
Fig. 7 is a side view of the cable net of the present invention after installation for cable net deployment.
Wherein, the names corresponding to the reference numbers are:
1-bearing cable, 2-wind resisting cable, 3-stand and 4-double-oblique-arch supporting arch body.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in fig. 1 to 7, the method for installing the saddle-shaped cable net expansion cable under the condition of limited space provided by the invention comprises the following steps:
And 2, spreading the wind-resistant cable 2 from the direction far away from the stand, stopping spreading the cable when the wind-resistant cable 2 is spread to the position close to the stand, and simultaneously installing cable clamps in the process of spreading the cable of the wind-resistant cable 2 so as to fix the laid cable net, as shown in figure 2.
And 3, mounting lifting tools on the bearing cables 1 at the ends of the bearing cables 1 far away from the stand, wherein the lifting tools are mounted at intervals, and one set of lifting tool is mounted every other bearing cable.
And 4, after the lifting tool is installed, slowly lifting the cable net through the lifting tool, moving the whole cable net structure in an obliquely upward direction away from the stand end, increasing the effective spreading length of the bearing cable, enabling the non-spread cable section close to the stand end to be spread, simultaneously, when the spreading length of the bearing cable is enough to lay the wind-resistant cable, immediately laying the wind-resistant cable on the bearing cable, and assembling the cable clamp, as shown in fig. 3.
And 5, continuously repeating the step 4 until the lifting tool moves to the top of the double-oblique-arch bearing arch body 4, selecting 3-5 bearing cables to install the lifting tool at the middle position of the bearing cable close to the end of the stand, selecting and installing at intervals, selecting a bearing cable to install the lifting tool every other bearing cable, starting to slowly lift after the lifting tool is installed, forming a ridge in the middle of the whole cable net structure, starting to move the cable nets at two sides close to the stand to the middle, and spreading the cable nets at two edges of the stand.
And 6, after the cable nets at the two edges of the stand are completely spread, installing lifting tools on the rest bearing cables, which are not provided with the lifting tools, close to the stand end, wherein the lifting tools are installed at intervals, installing one set of lifting tool on every interval bearing cable, which is not provided with the lifting tools, and after the lifting tools are installed, slowly lifting the lifting tools to the top of the double-oblique-arch bearing arch body 4 and hanging the corresponding bearing cables.
And 7, mounting lifting tools on the rest bearing cables, which are not provided with the lifting tools, close to the stand end, slowly lifting the lifting tools to the top of the double-oblique-arch bearing arch body 4 after the mounting, hanging the corresponding bearing cables, and then removing all the lifting tools, as shown in fig. 4.
And 8, installing the wind-resistant cable lifting tools on all the wind-resistant cables, after the wind-resistant cable lifting tools are installed, lifting cable heads of the wind-resistant cables to positions with the same distance from the pin shaft holes through all the wind-resistant cable lifting tools, then carrying out fine adjustment, synchronously controlling the lifting amount of the wind-resistant cable lifting tools until all the wind-resistant cables are hung, and finishing the cable net spreading and lifting as shown in the figures 5-7.
The invention has wonderful conception and scientific and reasonable design, can effectively avoid the laying of the cable net on the stand, namely, the high-altitude cable expansion is avoided, the potential safety hazard of the high-altitude cable expansion is eliminated, and meanwhile, the stand can be effectively ensured not to be damaged due to the laying of the cable net in the cable net laying process; the cable net is spread and installed according to the method, workers can conveniently spread cables and the cable net spreading efficiency can be effectively improved, meanwhile, the lifting tools of the bearing cables are arranged at intervals, namely one lifting tool is installed every other bearing cable, the cable net lifting efficiency can be effectively improved, the overall installation efficiency of the cable net can be effectively improved, and the cable net installation period can be shortened.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (2)
1. A saddle-shaped cable net cable-spreading installation method under the condition of limited space is characterized by comprising the following steps:
step 1, spreading all bearing cables from a direction far away from a stand to a position close to the stand according to corresponding mounting positions on a double-oblique-arch bearing arch body;
step 2, spreading the wind-resistant cable from the direction far away from the stand, stopping spreading the cable when the wind-resistant cable is spread to the position close to the stand, and simultaneously installing cable clamps in the process of spreading the wind-resistant cable so as to fix the laid cable net;
step 3, mounting lifting tools on the bearing cables at the ends of the bearing cables far away from the stand, wherein the lifting tools are mounted at intervals, and one set of lifting tool is mounted every other bearing cable;
step 4, after the lifting tool is installed, slowly lifting the cable net through the lifting tool, moving the whole cable net structure in an obliquely upward direction away from the stand end, increasing the effective spreading length of the bearing cable, enabling the non-spread cable section close to the stand end to be spread, and meanwhile, when the spreading length of the bearing cable is enough to lay the wind-resistant cable, immediately laying the wind-resistant cable on the bearing cable and assembling the cable clamp;
step 5, continuously repeating the step 4 until the lifting tool goes to the top of the double-oblique-arch bearing arch body, selecting 3-5 bearing cables to install the lifting tool at the middle position of the bearing cable close to the end of the stand, starting to slowly lift after the lifting tool is installed, forming a ridge in the middle of the whole cable net structure at the moment, starting to move the cable nets at two sides close to the stand to the middle, and spreading the cable nets at two edges of the stand;
step 6, after the cable nets at the two edges of the stand are completely spread, installing lifting tools on the rest bearing cables, which are not provided with the lifting tools, close to the stand end, wherein the lifting tools are installed at intervals, one lifting tool is installed at every interval of the bearing cables, which are not provided with the lifting tools, and after the lifting tools are installed, the lifting tools are slowly lifted to the top of the double-oblique-arch bearing arch body and corresponding bearing cables are hung;
step 7, installing lifting tools on all the remaining bearing cables which are not provided with the lifting tools and close to the stand end, slowly lifting the lifting tools to the top of the double-oblique-arch bearing arch body after the lifting tools are installed, hanging the corresponding bearing cables, and then dismantling all the lifting tools;
and 8, installing the wind-resistant cable lifting tools on all the wind-resistant cables, after the wind-resistant cable lifting tools are installed, lifting cable heads of the wind-resistant cables to positions with the same distance from the pin shaft holes through all the wind-resistant cable lifting tools, then carrying out fine adjustment, synchronously controlling the lifting amount of the wind-resistant cable lifting tools until all the wind-resistant cables are hung, and finishing the cable net spreading and lifting.
2. The method for installing the spreading ropes of the saddle-shaped cable net under the limited space condition as claimed in claim 1, wherein in the step 5, when 3-5 bearing ropes are selected to install the lifting tools, the interval selection installation is adopted, and one bearing rope is selected again to install the lifting tools every other bearing rope.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910061780.3A CN109811889B (en) | 2019-01-23 | 2019-01-23 | Saddle-shaped cable net cable spreading installation method under space limited condition |
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| CN201910061780.3A CN109811889B (en) | 2019-01-23 | 2019-01-23 | Saddle-shaped cable net cable spreading installation method under space limited condition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3477183A (en) * | 1967-07-24 | 1969-11-11 | David R Graham | Low profile rigid frame metal building |
| CN102912989B (en) * | 2012-11-14 | 2014-08-20 | 淮海工学院 | Installation method for steel reticulated shell and cable dome combined structure |
| CN103883125B (en) * | 2014-04-08 | 2015-11-18 | 北京市建筑工程研究院有限责任公司 | Super-span shape of a saddle flexible cable net Tension Forming construction method |
| CN105155426B (en) * | 2015-09-30 | 2017-01-25 | 中铁港航局集团有限公司 | Method for combining cable-stayed bridge deck cable unreeling manner and air cable unreeling manner under condition of limited space |
| CN105401523B (en) * | 2015-09-30 | 2017-03-22 | 中铁港航局集团有限公司 | Hanging mounting method of long heavy stay cable under space limited condition |
| CN106013812B (en) * | 2016-05-18 | 2017-12-19 | 东南大学 | A kind of two-way monolayer cable net structure without support high-altitude overhead cable construction method |
| CN106930538A (en) * | 2017-03-14 | 2017-07-07 | 东南大学 | The construction method that a kind of radial monolayer cable net is integrally lifted, progressively anchored in batches |
| CN106968341A (en) * | 2017-05-18 | 2017-07-21 | 启东建筑集团有限公司 | Tubular truss cable-membrane analysis construction method |
| CN109537729A (en) * | 2018-11-30 | 2019-03-29 | 北京市建筑工程研究院有限责任公司 | A kind of construction method suitable for single-layer bidirectional Orthogonal Cable net |
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