CN106758837B - Oblique pulling buckling construction system combined with arched upright post - Google Patents
Oblique pulling buckling construction system combined with arched upright post Download PDFInfo
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- CN106758837B CN106758837B CN201611211319.4A CN201611211319A CN106758837B CN 106758837 B CN106758837 B CN 106758837B CN 201611211319 A CN201611211319 A CN 201611211319A CN 106758837 B CN106758837 B CN 106758837B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention relates to a cable-stayed buckling construction system combined with an arched upright post, which is suitable for steel truss arch bridge construction under the conditions of large span, heavy rod piece weight and complex terrain conditions. The system of hanging is detained to draw to one side include: the anchor cable is buckled, anchor rope, anchorage, main knot tower, supplementary knot tower, hunch stand, juncture pier, supplementary pier, hunch seat and arch rib. The construction method introduced by the invention can efficiently solve the construction problem of the steel truss arch bridge under the required conditions, effectively shortens the construction period and obviously saves the construction cost.
Description
Technical Field
The invention relates to a cable-stayed buckling construction system combined with an arch upright post, which is suitable for steel truss arch bridge construction under the conditions of large span, heavy rod piece weight and complex terrain conditions.
Background
The traditional construction method in bridge engineering can be divided into the following steps: a stent method, a swivel method and a buckle method. Under the conditions of large span and complex terrain conditions (such as river crossing and the like), the support method is not applicable any more. Under the conditions that the whole weight of the bridge is large and equipment is not arranged on the terrain, the turning method is difficult to realize. Under the condition that the weight of the rod piece is large, if a traditional buckling and hanging method is adopted, the temporarily lifted boundary pier is used as a buckling tower, the stress is relatively concentrated, and the bearing capacity is difficult to meet the engineering requirement; due to the arrangement condition of the bridge piers and the limitation of the terrain, the diagonal pulling and buckling of a plurality of sections of arch ribs at the arch springing part are usually difficult to realize; and the cantilever assembly of the main arch ring can be carried out only after the boundary pier is finished by the traditional cable-stayed buckling and hanging method, so that the construction period can be influenced. Therefore, the conventional construction method cannot efficiently meet the construction of the steel truss arch bridge under the conditions of large span, heavy rod piece weight and complex terrain conditions.
Disclosure of Invention
The invention aims to provide a cable-stayed buckling construction system combined with an arch upright post, which solves the problems of assembling and folding of a steel truss arch bridge inclined pulling buckling cantilever under the conditions of large span, heavy rod piece weight and complex terrain conditions, can ensure the economical, efficient and safe construction of engineering, and can shorten the construction period to a greater extent.
In order to achieve the above object, the present invention is realized by the following technical solutions:
the utility model provides a combine to pull to one side of hunch stand to detain and hang construction system which characterized in that: the cable-stayed buckling and hanging system comprises a buckling cable system, a buckling tower system and an anchor cable system, wherein the buckling cable system and the anchor cable system are connected with the buckling tower system. The buckling tower system is divided into a main buckling tower system and an auxiliary buckling tower system. The main buckle tower is a stretching structure of the main buckle tower system, and the auxiliary buckle tower system comprises an auxiliary buckle tower and an arched upright post.
The buckling cable system connects the buckling cable with the hoisting component through the buckling point.
The anchor cable system comprises an anchor cable, an anchor and an arch support and is used for balancing the horizontal force of the buckling cable.
The main buckling tower is a buckling tower arranged on the junction pier and bears the main vertical force of the system. Wherein, the juncture pier is the pier closest to the main arch.
The auxiliary buckling tower is a buckling tower arranged on the auxiliary bridge pier, and the auxiliary bridge pier is a bridge pier close to the junction bridge pier.
The arch upright post is a temporary upright post arranged on the arch rib.
The invention has the beneficial effects that:
the invention relates to an inclined pull buckle hanging construction method, which improves a buckle tower system to a certain extent and divides the inclined pull buckle hanging construction method into a main buckle tower system consisting of a main buckle tower and an auxiliary buckle tower system consisting of an auxiliary buckle tower and an arch upright post. The combination of the main buckling tower and the auxiliary buckling tower distributes the larger vertical force of the buckling and hanging system, improves the stress condition of the buckling tower and the buckling rope, and reduces the pressure and bending moment of arch springing generated by the main arch rib of the cantilever. The arrangement of the arch upright posts overcomes the limitation of the arrangement condition and the terrain of the bridge pier, the diagonal pulling buckling of the front arch ribs is realized, the bending moment of the arch foot of the cantilever steel arch truss is reduced to a great extent, and the safety of the arch foot and the arch foot in the whole bridge construction process is ensured. The construction of the main buckle tower and the installation of the arch rib can be synchronously carried out, and the construction period is effectively shortened. And the cable force of each construction stage is adjusted in real time according to the finite element analysis result, so that the linearity of the arch bridge is controlled at high quality.
The invention combines the tower buckling system formed by the existing bridge pier and the erected arch upright column with the cable buckling system and the anchor cable system, efficiently solves the construction problem of the steel truss arch bridge under the conditions of large span, heavy rod piece weight and complex terrain conditions, obviously saves the economic cost and time cost of construction, reduces the safety risk in the construction process, and has wider application prospect in the field of bridge construction.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1. the device comprises a buckling rope 2, an anchor rope 3, an anchorage 4, a main buckling tower 5, an auxiliary buckling tower 6, an arch upright post 7, a junction pier 8, an auxiliary pier 9, an arch abutment 10 and arch ribs.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
as can be seen from the attached drawing 1, the main buckling tower 4 and the auxiliary buckling tower 5 are respectively connected with the arch rib 10 and the anchorage 3 through the buckling rope 1 and the anchor rope 2. The main buckling tower 4 and the auxiliary buckling tower 5 are respectively arranged on the junction pier 7 and the auxiliary pier 8. The arch upright post 6 is respectively connected with the rib 10 and the arch base 9 through the buckle cable 1 and the anchor cable 2.
When the bridge arch rib is installed by using the method, the method can be divided into the installation of the arch rib at the arch springing position and the installation of the main arch rib. The construction of arch rib and the construction of fastening tower can be carried out simultaneously.
For the installation of arch ribs at the arch foot, firstly, the cable is utilized to hang the cantilever assembly of the front two sections of arch ribs, then an arch upright post 6 is erected, then the arch upright post 6 is used as a temporary buckling tower and is connected with the arch ribs 10 through buckling cables 1, anchor cables 2 are connected with an arch base 9, the arch ribs can be fixed after the cable force is tensioned, and the cantilever assembly of the front sections of arch ribs is completed.
After the construction of the auxiliary buckle tower 5 and the main buckle tower 4 is completed on the auxiliary pier 8 and the boundary pier 7, respectively, the installation of the main arch rib can be performed. Firstly, an anchorage 3 is connected to an auxiliary buckling tower 5 or a main buckling tower 4 section by section through anchor cables 2, the auxiliary buckling tower 5 or the main buckling tower 4 is connected with an arch rib of a middle section or a midspan section through a buckling cable 1, then the cable force is tensioned and adjusted according to a designed position to complete the installation of the arch rib of the section, and then the step is repeated to complete the cantilever assembly of the rest main arch rib.
And after the integral arch ring is closed, dismantling the buckling rope 1, the anchor rope 2, the main buckling tower 4, the auxiliary buckling tower 5 and the arch upright post 6.
Claims (5)
1. The utility model provides a combine to pull to one side of hunch stand to detain and hang construction system which characterized in that: the inclined pull buckle hanging construction system comprises a buckle cable system, a buckle tower system and an anchor cable system, wherein the buckle cable system and the anchor cable system are connected with the buckle tower system; the buckling tower system is divided into a main buckling tower system and an auxiliary buckling tower system; the main buckling tower is a stretching structure of a main buckling tower system, and the auxiliary buckling tower system comprises an auxiliary buckling tower and an arched upright post; the anchor cable system comprises an anchor cable, an anchor and an arch support and is used for balancing the level of the buckle cable system;
when the bridge arch rib is installed, the bridge arch rib is divided into the installation of the arch rib at the arch springing position and the installation of the main body arch rib; the construction of arch ribs at the arch springing and the construction of buckling the tower can be carried out simultaneously;
for the installation of arch ribs at the arch foot, firstly, the cable is utilized to hang the cantilever assembly of the front two sections of arch ribs, then an arch upright post is erected, then the arch upright post is used as a temporary buckling tower and is connected with the arch ribs through buckling cables, anchor cables are connected with an arch base, the arch ribs can be fixed after the cable is tensioned by force, and the cantilever assembly of the front sections of arch ribs is completed;
after the construction of the auxiliary buckling tower and the main buckling tower is respectively completed on the auxiliary bridge pier and the boundary bridge pier, the installation of the main arch rib is carried out; firstly, connecting the anchor to an auxiliary buckling tower or a main buckling tower section by section through anchor cables, connecting the auxiliary buckling tower or the main buckling tower with an arch rib of a middle section or a midspan section through buckling cables, tensioning and adjusting cable force according to a designed position to finish the installation of the arch rib of the section, and then repeating the steps to finish the cantilever assembly of the rest main arch rib;
after the integral arch ring is closed, the buckling cables, the anchor cables, the main buckling tower, the auxiliary buckling tower and the arch upright posts are dismantled;
the main buckling tower and the auxiliary buckling tower are respectively connected with the arch rib and the anchorage through buckling cables and anchor cables; the main buckling tower and the auxiliary buckling tower are respectively arranged on the junction pier and the auxiliary pier; the arch upright posts are respectively connected with the arch ribs and the arch seats through buckling cables and anchor cables.
2. The cable-stayed buckling construction system combined with the arched upright post as claimed in claim 1, wherein: the buckling cable system connects the buckling cable with the hoisting component through the buckling point.
3. The cable-stayed buckling construction system combined with the arched upright post as claimed in claim 1, wherein: the main buckling tower is a buckling tower arranged on the junction pier and bears the vertical force of the system; wherein, the juncture pier is the pier closest to the main arch.
4. The cable-stayed buckling construction system combined with the arched upright post as claimed in claim 1, wherein: the auxiliary buckling tower is a buckling tower arranged on the auxiliary bridge pier, and the auxiliary bridge pier is a bridge pier close to the junction bridge pier.
5. The cable-stayed buckling construction system combined with the arched upright post as claimed in claim 1, wherein: the arch upright post is a temporary upright post arranged on the arch rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211319.4A CN106758837B (en) | 2016-12-24 | 2016-12-24 | Oblique pulling buckling construction system combined with arched upright post |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611211319.4A CN106758837B (en) | 2016-12-24 | 2016-12-24 | Oblique pulling buckling construction system combined with arched upright post |
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| CN106758837A CN106758837A (en) | 2017-05-31 |
| CN106758837B true CN106758837B (en) | 2020-06-02 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227692B (en) * | 2017-07-18 | 2023-01-24 | 广西路桥工程集团有限公司 | Diagonal buckling and hanging installation system |
| CN108239937B (en) * | 2017-09-14 | 2021-12-28 | 贵州桥梁建设集团有限责任公司 | Self-balancing control method for arch bridge tower |
| CN111608693B (en) * | 2020-06-02 | 2022-12-20 | 仲恺农业工程学院 | High-strength steel pipe concrete arch |
| CN111764306B (en) * | 2020-07-20 | 2022-03-15 | 四川省公路规划勘察设计研究院有限公司 | Cantilever pouring arching control method for arranging buckling cable steering device on large-span main arch stand column |
| CN113062231B (en) * | 2021-04-06 | 2022-02-18 | 招商局重庆交通科研设计院有限公司 | Cantilever pouring arch ring construction device and construction method |
| CN114875769A (en) * | 2021-07-22 | 2022-08-09 | 长沙理工大学 | Prefabricated hollow sandwich concrete-filled steel tube arch bridge and construction method thereof |
| CN115992490B (en) * | 2023-03-23 | 2023-06-06 | 中铁十七局集团第五工程有限公司 | Pouring construction method for cable-stayed buckling hanging cantilever of large-span concrete arch bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000240001A (en) * | 1999-02-19 | 2000-09-05 | Hitachi Zosen Corp | Over bridge |
| CN102418315B (en) * | 2011-09-30 | 2013-10-23 | 长沙理工大学 | Construction method for concrete-filled steel tube arched bridge with large low-buckle tower erection bridge width |
| CN202809498U (en) * | 2012-10-17 | 2013-03-20 | 张清标 | Novel cable rope lifting system |
| CN105926444B (en) * | 2016-04-22 | 2018-03-23 | 中铁二院工程集团有限责任公司 | A kind of concrete arch-type bridge arching method |
| CN205711696U (en) * | 2016-06-24 | 2016-11-23 | 河海大学 | A kind of drag-line and the overpass encircleing combined system |
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