CN101575841B - Method for erecting arch bridge reinforcement working platform - Google Patents
Method for erecting arch bridge reinforcement working platform Download PDFInfo
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- CN101575841B CN101575841B CN2009100398836A CN200910039883A CN101575841B CN 101575841 B CN101575841 B CN 101575841B CN 2009100398836 A CN2009100398836 A CN 2009100398836A CN 200910039883 A CN200910039883 A CN 200910039883A CN 101575841 B CN101575841 B CN 101575841B
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- arch bridge
- bracing frame
- working platform
- erection method
- bridge reinforcement
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Abstract
The invention discloses a method for erecting an arch bridge reinforcement working platform, which comprises the following steps: (1) butting high-quality bamboo poles to connect longitudinal supporting racks; (2) fixing the longitudinal supporting racks in a step shape by using palm fiber ropes under an arch bridge banister; (3) mounting transverse supporting racks at regular intervals on the longitudinal supporting racks on the same step; (4) paving bamboo gangplanks on the longitudinal supporting racks on the same step and between adjacent high-low steps; and (5) fixing two sides of the longitudinal supporting racks by using the palm fiber ropes to stabilize the working platform. The method for erecting the working platform has the advantages of simple raw materials, simple and convenient operation and short construction period, and the raw materials can be reused for a plurality of times; the working platform can ensure the underbridge navigation and traffic, occupy small space andis easy to be popularized and used; and the structural style of the working platform is safe and reliable, can increase fixed points at any time according to the on-the-spot conditions, and can ensur e the safety.
Description
Technical field
The present invention relates to a kind of erection method of bridge strengthening working platform, especially steppedly under the arch bridge bridge set up a kind of erection method that bracing frame is a working platform.
Background technology
Double curvature arched bridge becomes whole nation bridge type fashionable for a time in the 60-70 age in 20th century, all builds a large amount of double curvature arched bridges in the western and eastern area of China.As time goes on, these bridges are aging.On the other hand because its main arch circle is to be made of arch-wave, the arch bar that build arch rib that waters earlier and back, owing to be subjected to the influence of execution conditions and technology at that time, the steel bar concrete leakiness of vibrating, reinforcing bars rusting, arch rib surface concrete is peeled off seriously, whole stressed decline has a large portion all to have disease.Usually reinforced with the way of sealing the steel bar concrete enlarging section.
Arch bridge is reinforced need set up certain working platform, conventional operation platform adopts the way of ramming the king-pile of fetching water in the river course usually, utilize shaped steel and steel pipe to set up working platform successively, be subjected to that place restriction is big, material usage is many, expense is big, long construction period, waste time and energy, be subjected to the season construction infection very big, seriously take the river course, the influence navigation.
Therefore, need badly a kind of easy and simple to handlely, short construction period can be guaranteed under the bridge navigation and traffic, and it is little to take up room, the erection method of the arch bridge reinforcement platform that is used more widely easily.
Summary of the invention
At above-mentioned the deficiencies in the prior art, the object of the invention provides a kind of easy and simple to handle, and short construction period can be guaranteed navigation and traffic under the bridge, and it is little to take up room, the erection method of the arch bridge reinforcement platform that is used more widely easily.
To achieve these goals, the invention provides a kind of erection method of arch bridge reinforcement platform, may further comprise the steps: (1) is linked to be the longitudinal bracing frame with the butt joint of high-quality bamboo pole; (2) use coir rope with the stepped arch bridge baluster below that is fixed on of longitudinal bracing frame; (3) a cross binding frame is set at a certain distance on the longitudinal bracing frame of described same order; (4) on the vertical and horizontal bracing frame between same order and adjacent low-order and high-order, lay the bamboo springboard respectively; (5) utilize coir rope fixed longitudinal supporting frame both sides with the steady operation platform.
Preferably, the high-quality bamboo pole small-end diameter in the described step (1) is not less than 10cm, and length is not less than 12m, and the iron wire colligation is used in butt joint, and length overall is wider than arch bridge overall with 2m with both sides.
Preferably, the coir rope diameter in the described step (2) is not less than 3cm, and the number of turns that coir rope twines baluster is no less than twice.
Preferably, the spacing of the longitudinal bracing frame between the adjacent low-order and high-order in the described step (2) is to determine according to the arch ring curve of arch bridge.
Preferably, the described longitudinal bracing frame in the described step (3) is provided with a cross binding frame every 4-6m, is beneficial to lay the bamboo springboard.
Preferably, the bamboo springboard in the described step (4) utilizes iron wire to be fixed on the support frame as described above.
Preferably, the bottom fixed point of the coir rope in the described step (5) is, uses Churn drill at the jewel hole of steel bar concrete arch rib own, squeezes into setscrew, and rope is fixed on the setscrew, and it is skewed that stationary rope is the Eight characters.
Compared with prior art, the advantage of the erection method of arch bridge reinforcement platform of the present invention is: economical with materials, and with low cost, the environmental protection less expensive; The use raw material are simple, and are easy and simple to handle, and short construction period can repeatedly have enough to meet the need use; Can guarantee navigation and traffic under the bridge, it is little to take up room, and is used more widely easily; This form of structure is safe and reliable, can increase fixed point at any time according to field condition, can guarantee safety.
By following description also in conjunction with the accompanying drawings, it is more clear that the present invention will become, and these accompanying drawings are used to explain embodiments of the invention.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, to do to introduce simply to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The working platform front view that Fig. 1 sets up for the erection method that adopts arch bridge reinforcement platform of the present invention.
The profile of Fig. 2 for being done along A-A line shown in Figure 1.
Fig. 3 is for being provided with the floor map of a cross binding frame at a certain distance on the longitudinal bracing frame.
Fig. 4 is a side view of laying the bamboo springboard on bracing frame.
The specific embodiment
Below in conjunction with the accompanying drawing of the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the erection method of arch bridge reinforcement platform utilizes bamboo pole to make bracing frame, be transported under the bridge by ferryboat or buoyant raft, both sides are fixed on the baluster with coir rope, upper berth bamboo springboard, and under bridge, laterally connect the hanging ladder working platform that forms a whole.Concrete steps are:
(1) makes longitudinal bracing frame 1.Each longitudinal bracing frame 1 is to utilize two high-quality bamboo pole butt joints, uses the iron wire colligation every 1m, and high-quality bamboo pole small-end diameter is not less than 10cm, and length is not less than 12m, and length overall is wider than arch bridge overall with 2m with both sides and is as the criterion, and longitudinal bracing frame 1 spacing is greater than 1m.Use ferryboat or buoyant raft that longitudinal bracing frame 1 is transported to the bridge upper/lower positions, prevent the bracing frame immersion in the transportation, increase deadweight.
(2) use coir rope 5 with the described longitudinal bracing frame 1 stepped arch bridge baluster below that is fixed on.Coir rope 5 diameters are not less than 3cm, put under the bridge of restricting from bridge, the bottom is wrapped in the termination of longitudinal bracing frame 1, the number of turns of twining is no less than twice, treat colligation firmly after, the top is wrapped on accommodation rail or the baluster, the number of turns is no less than twice, slowly promote longitudinal bracing frame 1 then, promoting or transferring in the process, coir rope is also strained thereupon and is lightened restrictions on; The 1 stepped arrangement of longitudinal bracing frame, the horizontal range of per pass longitudinal bracing frame is 1m, apart from being 1.2m at the bottom of the arch rib.
(3) a cross binding frame 2 is set at a certain distance on the longitudinal bracing frame 1 of described same order.Every 4-6m a cross binding frame 2 is set on the longitudinal bracing frame 1 of two adjacent same orders, the short bamboo pole of this cross binding frame is made.
(4) on the longitudinal bracing frame 1 between same order and adjacent low-order and high-order, lay bamboo springboard 4 respectively.After the bracing frame for the treatment of step (3) is set up and finished, begin to lay bamboo springboard 4 from the longitudinal bracing frame 1 of same order lowest part.After the longitudinal bracing frame 1 for the treatment of same order has been laid bamboo springboard 4, between adjacent low-order and high-order longitudinal bracing plate 1, lay bamboo springboard 4, can go up on the adjacent higher longitudinal bracing frame 1, lay bamboo springboard 4 and extend from the middle to both ends with the person who happens to be on hand for an errand.
(5) utilize coir rope fixed longitudinal supporting frame both sides with the steady operation platform.Treat after laying bamboo springboard 4 on the bracing frame 1, in order to slow down waving of support, use two coir ropes 5 to be herringbone shape fixing support rack 1, the fixed point of end, use Churn drill at the jewel hole of steel bar concrete arch rib own, squeeze into setscrew 7, rope one end is fixed on the setscrew, the other end is fixed on the position of cross binding frame 2, to stablize whole working platform.
The constructor utilizes ladder 6 to enter on the working platform from bridge, and ladder can weld with indented bars, and the upper end is suspended on the accommodation rail, or is fixed on limit, bridge floor sidewalk, and the lower end is fixed on the platform.
When removing working platform, lower after the first eminence, tear bracing frame open after withdrawing from the bamboo springboard earlier, again bracing frame is put on the water surface, utilize pull rope to drag to the riverbank.
Compared with prior art, the advantage of the erection method of arch bridge reinforcement platform of the present invention is: economical with materials, and with low cost, the environmental protection less expensive; The use raw material are simple, and are easy and simple to handle, and short construction period can repeatedly have enough to meet the need use; Can guarantee navigation and traffic under the bridge, it is little to take up room, and is used more widely easily; This form of structure is safe and reliable, and as shown in Figure 3, bracing frame 1 is per two and ties together, and as shown in Figure 4, bracing frame is two single, can increase fixed point at any time according to field condition, can guarantee safety.
The known technology conversion of all those skilled in that art all drops in protection scope of the present invention; comprise raw-material replacement; adopt steel wire tightrope or steel pipe to substitute bamboo pole etc. as above-mentioned stationary rope; spacing and width are not limited in this enforcement, can calculate according to actual conditions and execution conditions.
Above disclosed only is the preferred embodiments of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (7)
1. the erection method of an arch bridge reinforcement platform is characterized in that, may further comprise the steps:
(1) with the butt joint of high-quality bamboo pole, is linked to be the longitudinal bracing frame;
(2) use coir rope with the stepped arch bridge baluster below that is fixed on of described longitudinal bracing frame;
(3) a cross binding frame is set at a certain distance on the longitudinal bracing frame of same order;
(4) on the vertical and horizontal bracing frame between same order and adjacent low-order and high-order, lay the bamboo springboard respectively;
(5) utilize coir rope fixed longitudinal supporting frame both sides with the steady operation platform.
2. the erection method of arch bridge reinforcement platform as claimed in claim 1 is characterized in that: the high-quality bamboo pole small-end diameter in the described step (1) is not less than 10cm, and length is not less than 12m, and the iron wire colligation is used in butt joint, and length overall is wider than arch bridge overall with 2m.
3. the erection method of arch bridge reinforcement platform as claimed in claim 1 is characterized in that: the coir rope diameter in the described step (2) is not less than 3cm, and the number of turns that coir rope twines baluster is no less than twice.
4. the erection method of arch bridge reinforcement platform as claimed in claim 1 is characterized in that: the spacing of the longitudinal bracing frame between the adjacent low-order and high-order in the described step (2) is to determine according to the arch ring curve of arch bridge.
5. the erection method of arch bridge reinforcement platform as claimed in claim 1 is characterized in that: the described longitudinal bracing frame in the described step (3) is provided with a cross binding frame every 4-6m, is beneficial to lay the bamboo springboard.
6. the erection method of arch bridge reinforcement platform as claimed in claim 1 is characterized in that: the bamboo springboard in the described step (4) utilizes iron wire to be fixed on the support frame as described above.
7. the erection method of arch bridge reinforcement platform as claimed in claim 1, it is characterized in that: the bottom fixed point method to set up of the coir rope in the described step (5) is to use Churn drill at the jewel hole of steel bar concrete arch rib own earlier, squeeze into setscrew again, rope is fixed on the setscrew afterwards, and it is skewed that its stationary rope is the Eight characters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100398836A CN101575841B (en) | 2009-06-01 | 2009-06-01 | Method for erecting arch bridge reinforcement working platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100398836A CN101575841B (en) | 2009-06-01 | 2009-06-01 | Method for erecting arch bridge reinforcement working platform |
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| CN101575841A CN101575841A (en) | 2009-11-11 |
| CN101575841B true CN101575841B (en) | 2011-08-03 |
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| CN103898840B (en) * | 2014-03-31 | 2015-09-16 | 南京林业大学 | A kind of bridge high altitude operation platform and erection method thereof |
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