CN103866693B - A kind of mounting method of steel concrete bowstring arch bridge arch rib - Google Patents
A kind of mounting method of steel concrete bowstring arch bridge arch rib Download PDFInfo
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- CN103866693B CN103866693B CN201410090163.3A CN201410090163A CN103866693B CN 103866693 B CN103866693 B CN 103866693B CN 201410090163 A CN201410090163 A CN 201410090163A CN 103866693 B CN103866693 B CN 103866693B
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Abstract
Disclosed by the invention is a kind of mounting method of steel concrete bowstring arch bridge arch rib, for the installation of steel concrete bowstring arch bridge arch rib during first beam rear arch and the cast in situs of tie-rod.The present invention be in river course along the bridge of bowstring arch bridge to construction rib-hoisting auxiliary bridge, the auxiliary bridge of rib-hoisting comprises reinforced concrete pile cap, support pier and lifting table top.The auxiliary bridge of rib-hoisting is set up tie-rod cast-in-place support and arch rib mounting bracket, by tie-rod cast-in-place support to tie-rod cast in situs; By arch rib mounting bracket, use mobile crane that the arch rib of bowstring arch bridge is installed on the auxiliary bridge of rib-hoisting.The present invention is not only applicable to navigable river, also not navigable river is applicable to, easy construction, not only can solve arch rib and this maximum difficult problem is installed, the cast in situs of tie-rod and the construction of arch bridge bridge floor etc. problem can be solved simultaneously, greatly reduce the construction cost of bowstring arch bridge, improve working security, expand the construction scope of application of bowstring arch bridge.
Description
Technical field
The present invention relates to the construction method of steel concrete bowstring arch bridge, particularly a kind of mounting method of steel concrete bowstring arch bridge arch rib, for the installation of steel concrete bowstring arch bridge arch rib during first beam rear arch and the cast in situs of tie-rod.
Background technology
Steel concrete bowstring arch bridge is a kind of bridge type integrating the advantage of arch and beam, and arch and beam two kinds of basic structure forms are combined by it, form inner statically indeterminate system, and outside is then static determinacy, and therefore pier differential settlement is on its nothing impact.This bridge type, there is larger development recent years in China, is especially with comparatively outstanding with Jiangsu and Zhejiang Provinces one.Meanwhile, this bridge type is also that the one of the bridge construction form of crossing over navigation channel in China Express Railway construction commonly uses selection scheme.Also be widely used in large and medium-sized bridge abroad.
At present, the construction method of steel concrete bowstring arch bridge mainly contains cast-in-place and precast assembly two kinds of construction methods, and precast assembly is most widely used, precast assembly is divided into again the cable crane installation under employing erection without scaffolding condition and the crane barge ship under adopting limited bracket execution conditions to install two kinds of methods, and wherein the installation difficulty of arch rib is maximum.Cable crane mounting cost is high, and construction difficulty is large, does not generally adopt construct in this way when adopting other forms of construction work; And if during the construction method of employing crane barge ship installation, must there be the larger depth of water in the river course that newly building bridge is crossed over, to ensure the draft of crane barge ship, river course must meet navigation condition, otherwise crane barge ship cannot enter simultaneously.Due to above reason, the construction accommodation of steel concrete bowstring arch bridge is subject to larger restriction always, although this bridge Stability Analysis of Structures, good looking appearance is generous, generally all only build on navigable river, and inland river is not rarely found on navigable river.Job site needs a kind of construction method to break through the restriction that current steel concrete bowstring arch bridge builds accommodation.
Summary of the invention
The object of this invention is to provide a kind of mounting method of steel concrete bowstring arch bridge arch rib, overcome the applicable limitation of current steel concrete bowstring arch bridge construction technique, expand the construction accommodation of this kind of bridge type, improve the safety and stability of construction.
Technical solution of the present invention is:
The mounting method of steel concrete bowstring arch bridge arch rib be in river course along the bridge of bowstring arch bridge to the auxiliary bridge of construction rib-hoisting, the auxiliary bridge of rib-hoisting is set up tie-rod cast-in-place support and arch rib mounting bracket, by tie-rod cast-in-place support to tie-rod cast in situs; By arch rib mounting bracket, use mobile crane that the arch rib of bowstring arch bridge is installed on the auxiliary bridge of rib-hoisting; The auxiliary bridge of rib-hoisting comprises reinforced concrete pile cap, support pier and lifting table top, support pier is arranged on reinforced concrete pile cap and is fixed by activity crab-bolt, be fixed on reinforced concrete pile cap by activity crab-bolt bottom support pier, can entirety sling during dismounting, the activity crab-bolt Automatic-falling bottom support pier; Lifting table top is arranged on support pier, uses connecting bolt to fix.
A mounting method for steel concrete bowstring arch bridge arch rib, its construction technology, as following:
A, select the type of service of supporting pile according to the regimen in river course or gully and complete the construction of reinforced concrete pile cap;
B, assembling and fixed support pier and lifting table top, make the two ends of lifting table top be connected with the bridge pier of bowstring arch bridge, complete the construction of the auxiliary bridge of rib-hoisting;
C, on the auxiliary bridge of rib-hoisting, set up arch rib mounting bracket and tie-rod cast-in-place support, at the bottom welding i iron collet of arch rib mounting bracket, then i iron collet is welded on the bridge deck of lifting table top; Tie-rod cast-in-place support cast in situs tie-rod can be used, use arch rib mounting bracket to assist the arch rib installing bowstring arch bridge;
D, top installed thrust conversion bearing at arch rib mounting bracket, make it contact with the bottom surface of arch rib, facilitate installation;
The height of E, arch rib mounting bracket surmounts the height of tie-rod cast-in-place support and tie-rod, and the radian that the radian that multiple arch rib mounting bracket arranges formation and arch rib are formed after installing conforms to;
F, mobile crane is left the auxiliary bridge of upper rib-hoisting, use mobile crane, by arch rib mounting bracket, the arch rib of bowstring arch bridge is installed.
Remarkable result of the present invention is: the present invention is that the construction of steel concrete bowstring arch bridge provides a new solution, namely in river course or gully, an auxiliary bridge of rib-hoisting is set up, solve prior art in not navigable river, to build bowstring arch bridge crane barge ship cannot enter, use the problem that cable crane mounting cost is high, construction difficulty is large.The present invention is not only applicable to navigable river, is also applicable to not navigable river, and the safety and stability performance of pontic is high simultaneously, hinge structure easy construction.Not only can solve arch rib and this maximum difficult problem is installed, the cast in situs of tie-rod and the construction of arch bridge bridge floor etc. problem can be solved simultaneously, greatly reduce construction cost.The present invention can only adopt the limitation of cable crane and the lifting of crane barge ship when breaching steel concrete bowstring arch bridge arch rib prefabricate and install, expanded the construction scope of application of bowstring arch bridge, improves the safety of construction while reducing construction cost.The integrated support pier of arch rib mounting bracket and tie-rod cast-in-place support and the auxiliary bridge of rib-hoisting and lifting table top, be removed with completing of each operation, all again can come into operation in lower bridge block construction, have significant economic benefit and effect in construction.
Accompanying drawing explanation
Fig. 1 is the top view of reinforced concrete pile cap.
Fig. 2 is the front view of support pier.
Fig. 3 is the front view of the auxiliary bridge of rib-hoisting.
Fig. 4 is Construction Principle schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing in detail the present invention is described in detail, not limits the scope of the invention.
See Fig. 4, a kind of mounting method of steel concrete bowstring arch bridge arch rib is that the bridge of suitable bowstring arch bridge in river course is to the auxiliary bridge of construction rib-hoisting, the auxiliary bridge of rib-hoisting is set up tie-rod cast-in-place support 9 and arch rib mounting bracket 10, by tie-rod cast-in-place support 9 cast in situs tie-rod 14; By arch rib mounting bracket 10, use mobile crane 11 that the arch rib of bowstring arch bridge is installed on the auxiliary bridge of rib-hoisting.
See Fig. 1, Fig. 2 and Fig. 3, a kind of auxiliary bridge of rib-hoisting of mounting method of steel concrete bowstring arch bridge arch rib comprises reinforced concrete pile cap, support pier and lifting table top, support pier is arranged on reinforced concrete pile cap and is fixed by activity crab-bolt 5, be fixed on reinforced concrete pile cap by activity crab-bolt 5 bottom support pier, can entirety sling during dismounting, activity crab-bolt 5 Automatic-falling bottom support pier; Lifting table top is arranged on support pier, uses connecting bolt 8 to fix.Reinforced concrete pile cap comprises supporting pile 2 and accepts table top 1, and supporting pile 2 is crisscross arranged and is driven underground, and accept the stake top that table top 1 is cast in supporting pile 2, reinforced concrete pile cap is rectangle, transverse to bowstring arch bridge.Supporting pile 2 is bored pile or steel pipe pile, and bored pile is for the river course under shallow water or anhydrous condition or gully, and steel pipe pile is used for navigable river course or gully; When supporting pile 2 selects bored pile, the undertaking table top 1 after building is not higher than river bed, and when supporting pile 2 selects steel pipe pile, the undertaking table top 1 after building is higher than the water surface.Support pier is monolithic, comprises pier Bailey truss 3 and interlayer connecting bolt 4, and pier Bailey truss 3 is provided with bridging, vertical folded spelling, and each layer pier Bailey truss 3 utilizes interlayer connecting bolt 4 to connect by the bolt hole on truss.Lifting table top comprises table top Bailey truss 6 and bridge deck 7, to be vertically placed on support pier afterwards by the bridge of table top Bailey truss 6 along bowstring arch bridge, to be fixed, table top Bailey truss 6 is laid bridge deck 7 by connecting bolt 8 to assembled.The lifting two ends of table top are connected with the bridge pier of bowstring arch bridge, its length spans tie-rod 14 and tie-rod cast-in-place support 9.
A mounting method for steel concrete bowstring arch bridge arch rib, its construction technology, as following:
A, select the type of service of supporting pile 2 according to the regimen in river course or gully and complete the construction of reinforced concrete pile cap;
B, assembling and fixed support pier and lifting table top, make the two ends of lifting table top be connected with the bridge pier of bowstring arch bridge, complete the construction of the auxiliary bridge of rib-hoisting;
C, on the auxiliary bridge of rib-hoisting, set up arch rib mounting bracket 10 and tie-rod cast-in-place support 9, at the bottom welding i iron collet 12 of arch rib mounting bracket 10, then i iron collet 12 is welded on the bridge deck 7 of lifting table top; Tie-rod cast-in-place support 9 cast in situs tie-rod 14 can be used, use the auxiliary arch rib installing bowstring arch bridge of arch rib mounting bracket 10;
D, top installed thrust conversion bearing 13 at arch rib mounting bracket 10, make thrust change bearing 13 and contact with the bottom surface of arch rib, facilitate installation;
The height of E, arch rib mounting bracket 10 surmounts the height of tie-rod cast-in-place support 9 and tie-rod 14, and the radian that the radian that multiple arch rib mounting bracket 10 arranges formation and arch rib are formed after installing conforms to;
F, mobile crane 11 is left the auxiliary bridge of upper rib-hoisting, use mobile crane 11 that the arch rib of bowstring arch bridge is installed by arch rib mounting bracket 10.
Above-mentioned tie-rod cast-in-place support 9 uses bowl fastening type support assembled; Arch rib mounting bracket 10 is steel pipe trusses, is provided with bridging, its steel pipe bore is greater than 30cm.The area of the i iron collet 12 of arch rib mounting bracket 10 bottom welding is greater than the base area of arch rib mounting bracket 10, dispersibles the stress of arch rib mounting bracket 10.
Tie-rod cast-in-place support 9, arch rib mounting bracket 10 and the auxiliary bridge of rib-hoisting complete with corresponding user demand operation and are removed, and said apparatus all again can come into operation in lower bridge block construction.Undertaking table top 1 and the supporting pile 2 of the concrete bearing platform adopting steel pipe pile to build all are removed, to open the navigation or air flight.The undertaking table top 1 of concrete bearing platform adopting bored pile to build in the do not open the navigation or air flight river course or gully that require and supporting pile 2 because not higher than river bed without the need to dismounting.
Claims (6)
1. the mounting method of a steel concrete bowstring arch bridge arch rib, in river course, the bridge of suitable bowstring arch bridge is to the auxiliary bridge of construction rib-hoisting, the auxiliary bridge of rib-hoisting is set up tie-rod cast-in-place support (9) and arch rib mounting bracket (10), by tie-rod cast-in-place support (9) cast in situs tie-rod (14); By arch rib mounting bracket (10), use mobile crane (11) that the arch rib of bowstring arch bridge is installed on the auxiliary bridge of rib-hoisting; The auxiliary bridge of rib-hoisting comprises reinforced concrete pile cap, support pier and lifting table top, and support pier is arranged on reinforced concrete pile cap and is fixed by activity crab-bolt (5); Lifting table top is arranged on support pier, uses connecting bolt (8) to fix; Reinforced concrete pile cap comprises supporting pile (2) and accepts table top (1), and supporting pile (2) is crisscross arranged and is driven underground, and accept the stake top that table top (1) is cast in supporting pile (2), reinforced concrete pile cap is rectangle, transverse to bowstring arch bridge; Supporting pile (2) is bored pile or steel pipe pile, and bored pile is for the river course under shallow water or anhydrous condition or gully, and steel pipe pile is used for navigable river course or gully; When supporting pile (2) selects bored pile, the undertaking table top (1) after building is not higher than river bed, and when supporting pile (2) selects steel pipe pile, the undertaking table top (1) after building is higher than the water surface; Support pier is monolithic, comprise pier Bailey truss (3) and interlayer connecting bolt (4), pier Bailey truss (3) is provided with bridging, vertical folded spelling, and each layer pier Bailey truss (3) utilizes interlayer connecting bolt (4) to connect by the bolt hole on truss.
2. the mounting method of a kind of steel concrete bowstring arch bridge arch rib according to claim 1, it is characterized in that, described lifting table top comprises table top Bailey truss (6) and bridge deck (7), the bridge of table top Bailey truss (6) along bowstring arch bridge to be vertically placed on support pier afterwards to assembled, fixed by connecting bolt (8), table top Bailey truss (6) is laid bridge deck (7).
3. the mounting method of a kind of steel concrete bowstring arch bridge arch rib according to claim 1 and 2, it is characterized in that, the described two ends of lifting table top are connected with the bridge pier of bowstring arch bridge, its length spans tie-rod (14) and tie-rod cast-in-place support (9).
4. the mounting method of a steel concrete bowstring arch bridge arch rib, in river course, the bridge of suitable bowstring arch bridge is to the auxiliary bridge of construction rib-hoisting, the auxiliary bridge of rib-hoisting is set up tie-rod cast-in-place support (9) and arch rib mounting bracket (10), by tie-rod cast-in-place support (9) cast in situs tie-rod (14); By arch rib mounting bracket (10), use mobile crane (11) that the arch rib of bowstring arch bridge is installed on the auxiliary bridge of rib-hoisting; The auxiliary bridge of rib-hoisting comprises reinforced concrete pile cap, support pier and lifting table top, and support pier is arranged on reinforced concrete pile cap and is fixed by activity crab-bolt (5); Lifting table top is arranged on support pier, uses connecting bolt (8) to fix; Reinforced concrete pile cap comprises supporting pile (2) and accepts table top (1), and supporting pile (2) is crisscross arranged and is driven underground, and accept the stake top that table top (1) is cast in supporting pile (2), reinforced concrete pile cap is rectangle, transverse to bowstring arch bridge; Supporting pile (2) is bored pile or steel pipe pile, and bored pile is for the river course under shallow water or anhydrous condition or gully, and steel pipe pile is used for navigable river course or gully; When supporting pile (2) selects bored pile, the undertaking table top (1) after building is not higher than river bed, and when supporting pile (2) selects steel pipe pile, the undertaking table top (1) after building is higher than the water surface; Support pier is monolithic, comprise pier Bailey truss (3) and interlayer connecting bolt (4), pier Bailey truss (3) is provided with bridging, vertical folded spelling, and each layer pier Bailey truss (3) utilizes interlayer connecting bolt (4) to connect by the bolt hole on truss; Lifting table top comprises table top Bailey truss (6) and bridge deck (7), the bridge of table top Bailey truss (6) along bowstring arch bridge to be vertically placed on support pier afterwards to assembled, fixed by connecting bolt (8), table top Bailey truss (6) is laid bridge deck (7), and its construction technology is as following:
A, select the type of service of supporting pile (2) according to the regimen in river course or gully and complete the construction of reinforced concrete pile cap;
B, assembling and fixed support pier and lifting table top, make the two ends of lifting table top be connected with the bridge pier of bowstring arch bridge, complete the construction of the auxiliary bridge of rib-hoisting,
C, on the auxiliary bridge of rib-hoisting, set up arch rib mounting bracket (10) and tie-rod cast-in-place support (9), at the bottom welding i iron collet (12) of arch rib mounting bracket (10), then i iron collet (12) is welded on the bridge deck (7) of lifting table top;
D, top installed thrust conversion bearing (13) at arch rib mounting bracket (10);
The height of E, arch rib mounting bracket (10) surmounts the height of tie-rod cast-in-place support (9) and tie-rod (14), and the radian that the radian that multiple arch rib mounting bracket (10) arranges formation and arch rib are formed after installing conforms to;
F, mobile crane (11) is left the auxiliary bridge of upper rib-hoisting, use mobile crane (11), by arch rib mounting bracket (10), the arch rib of bowstring arch bridge is installed.
5. the mounting method of a kind of steel concrete bowstring arch bridge arch rib according to claim 4, is characterized in that, tie-rod cast-in-place support (9) uses bowl fastening type support assembled; Arch rib mounting bracket (10) is steel pipe truss, is provided with bridging, its steel pipe bore is greater than 30cm.
6. the mounting method of a kind of steel concrete bowstring arch bridge arch rib according to claim 4, is characterized in that, the area of the i iron collet (12) of described arch rib mounting bracket (10) bottom welding is greater than the base area of arch rib mounting bracket (10).
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| CN201410090163.3A CN103866693B (en) | 2014-03-13 | 2014-03-13 | A kind of mounting method of steel concrete bowstring arch bridge arch rib |
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| CN104986663A (en) * | 2015-05-21 | 2015-10-21 | 中交一航局安装工程有限公司 | Lifting installation technology for steel structure arched door |
| CN106812064A (en) * | 2015-11-27 | 2017-06-09 | 重庆标王集成房屋科技开发有限公司 | Parallel-moving type bridge bow member |
| CN106087769B (en) * | 2016-08-12 | 2017-10-10 | 中铁十局集团有限公司 | A kind of overall crane barge erection construction method of steel bowstring arch bridge |
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| CN112411342A (en) * | 2020-12-16 | 2021-02-26 | 昆山同济市政工程有限公司 | Construction method of prefabricated steel box girder pedestrian landscape bridge |
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Effective date of registration: 20180202 Address after: 100101 Chaoyang District, Jilin City, Beijing mouth road, No. 9 Co-patentee after: Triumph construction engineering corporation, Ltd of China Petrochemical Industry Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 257000 No. two, 755 North Road, Dongying District, Shandong, Dongying Patentee before: Triumph construction engineering corporation, Ltd of China Petrochemical Industry |