CN104109999A - Construction method for bridge tower transverse beams - Google Patents
Construction method for bridge tower transverse beams Download PDFInfo
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- CN104109999A CN104109999A CN201410292483.7A CN201410292483A CN104109999A CN 104109999 A CN104109999 A CN 104109999A CN 201410292483 A CN201410292483 A CN 201410292483A CN 104109999 A CN104109999 A CN 104109999A
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Abstract
The invention discloses a construction method for bridge tower transverse beams, and relates to the field of bridge construction engineering. The method comprises the following steps that a transverse beam support is lifted firstly to complete construction of an upper transverse beam, then the transverse beam support is laid to the construction position of a middle transverse beam to carry out construction of the middle transverse beam, and after the construction of the middle transverse beam is completed, the transverse beam support is laid to the ground to be demounted. According to the construction method, a traditional construction sequence of the bridge tower transverse beams is changed, mounting and demounting of the transverse beams only need to be carried out once, the construction procedures of the bridge tower transverse beams are simplified, operation time for mounting and demounting the transverse beam support is saved, rapid construction of a bridge is facilitated, and construction efficiency of the bridge is improved.
Description
Technical field
The present invention relates to bridge construction engineering field, specifically relate to a kind of construction method of bridge tower crossbeam.
Background technology
H bridge tower has multilayer crossbeam, and king-tower two king-post opposites are vertical or be tending towards vertical, in traditional H bridge tower, top rail casting process, be generally first to build middle king-post, set up middle cross beam support, completing middle cross beam builds, then remove middle cross beam support, build upper king-post strut, set up king-post top rail support, complete top rail and build, finally remove top rail support.Although the method can complete in bridge tower effectively, the building of top rail, and has following shortcoming:
1, overarm brace installation and removal all needs twice, and operation is loaded down with trivial details, time-consuming;
2, overarm brace can only adopt loose rod member lifting to install and remove substantially, and lifting often;
3,, for the H bridge tower with suspension cable, two king-posts and top rail all must have been built to the rear main cable construction that just can proceed to.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology, a kind of construction method of bridge tower crossbeam is provided, reduce the installation and removal number of times of overarm brace, thereby be conducive to the rapid construction of bridge, improve bridge construction efficiency.
The invention provides a kind of construction method of bridge tower crossbeam, described bridge tower comprises the first king-post and the second king-post that are oppositely arranged, and a side, the second king-post side relative with the first king-post that the first king-post is relative with the second king-post is inner side; Described construction method comprises the following steps:
Step 1: in the inner side of the first king-post, along burying the first built-in fitting and the 3rd built-in fitting underground perpendicular to the direction of the first king-post, the first built-in fitting is positioned at the top of the 3rd built-in fitting; In the inner side of the second king-post, along burying underground and the second built-in fitting and the 4th built-in fitting perpendicular to the direction of the second king-post; The second built-in fitting and the first built-in fitting are oppositely arranged, and the 4th built-in fitting and the 3rd built-in fitting are oppositely arranged;
The first built-in fitting, the second built-in fitting, the 3rd built-in fitting and the 4th built-in fitting include pre-buried end and exposed junction, the pre-buried end of the first built-in fitting and the 3rd built-in fitting is all imbedded the inside of the first king-post, and the exposed junction of the first built-in fitting and the 3rd built-in fitting all exposes to the inner side of the first king-post; The pre-buried end of the second built-in fitting and the 4th built-in fitting is all imbedded the inside of the second king-post, and the exposed junction of the second built-in fitting and the 4th built-in fitting all exposes to the inner side of the second king-post;
Weld the first steel plate at the exposed junction of the first built-in fitting, weld the second steel plate at the exposed junction of the second built-in fitting, at exposed junction welding the 3rd steel plate of the 3rd built-in fitting, at exposed junction welding the 4th steel plate of the 4th built-in fitting;
Step 2: the top that the base angle of existing overarm brace both sides is erected at respectively to the first steel plate and the second steel plate;
Step 3: the top at the level frame of overarm brace arranges soffit formwork, in the both sides of level frame, side template is all set; Soffit formwork, two side templates, the first king-post and the second king-posts form and build space; Building concreting formation top rail in space, while building, at reserved the first installing hole of a side and second installing hole of top rail, reserve the 3rd installing hole and the 4th installing hole at the opposite side of top rail; Top rail concrete setting, until after concrete strength and modulus of elasticity meet design requirement, remove soffit formwork and side template, completes the construction of top rail;
Step 4: four vertically-displacable continuous jacks are set at the top of top rail: be connected with the first steel strand the first vertically-displacable continuous jack, be connected with the second steel strand the second vertically-displacable continuous jack, be connected with the 3rd steel strand the 3rd vertically-displacable continuous jack, be connected with the 4th vertically-displacable continuous jack of the 4th steel strand;
By two distribution beam: the first distribution beam, the second distribution beam are all hung at the below of the level frame of overarm brace, the first steel strand are connected with the first distribution beam through the first installing hole, the 3rd steel strand are passed to the 3rd installing hole and be connected with the first distribution beam; The second steel strand are connected with the second distribution beam through the second installing hole, the 4th steel strand are connected with the second distribution beam through the 4th installing hole;
Step 5: promote the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, promote the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack; The first distribution beam and the second distribution beam drive overarm brace to rise, after the base angle of overarm brace both sides departs from the first steel plate and the second steel plate, and excision the first steel plate and the second steel plate;
Step 6: transfer the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, transfer the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack, the first distribution beam and the second distribution beam drive overarm brace to transfer, and the base angle of overarm brace both sides are erected at respectively to the top of the 3rd steel plate and the 4th steel plate;
Step 7: come again step 3 to step 5, the top rail in using step 3 to step 5 is as middle cross beam; The first steel plate in step 5 is replaced with to the 3rd steel plate, the second steel plate in step 5 is replaced with to the 4th steel plate;
Step 8: after middle cross beam has been constructed, by transferring the first distribution beam and the second distribution beam is transferred overarm brace to ground and removed.
On the basis of technique scheme, after space is built in formation, building in space before concreting forms top rail, further comprising the steps of in step 3: in space, to apply prefabricating load building, overarm brace is carried out to precompressed, removal prefabricating load after precompressed completes.
On the basis of technique scheme, step 7 comprises the following steps:
Top at overarm brace arranges soffit formwork, in the both sides of level frame, side template is all set; Soffit formwork, two side templates, the first king-post and the second king-posts form and build space; Building concreting formation middle cross beam in space, while building, at reserved the first installing hole of a side and second installing hole of middle cross beam, reserve the 3rd installing hole and the 4th installing hole at the opposite side of middle cross beam; Middle cross beam concrete setting, until after concrete strength and modulus of elasticity meet design requirement, remove soffit formwork and side template, completes the construction of middle cross beam;
Four vertically-displacable continuous jacks are set at the top of middle cross beam: be connected with the first steel strand the first vertically-displacable continuous jack, be connected with the second steel strand the second vertically-displacable continuous jack, be connected with the 3rd steel strand the 3rd vertically-displacable continuous jack, be connected with the 4th vertically-displacable continuous jack of the 4th steel strand;
By two distribution beam: the first distribution beam, the second distribution beam are all hung at the below of the level frame of overarm brace, the first steel strand are connected with the first distribution beam through the first installing hole, the 3rd steel strand are passed to the 3rd installing hole and be connected with the first distribution beam; The second steel strand are connected with the second distribution beam through the second installing hole, the 4th steel strand are connected with the second distribution beam through the 4th installing hole;
Promote the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, promote the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack, the first distribution beam and the second distribution beam drive overarm brace to rise, depart from after the 3rd steel plate and the 4th steel plate excision the 3rd steel plate and the 4th steel plate until the base angle of overarm brace both sides.
On the basis of technique scheme, step 8 comprises the following steps:
Transfer the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, transfer the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack, the first distribution beam and the second distribution beam drive overarm brace to transfer, and overarm brace is transferred to ground and removed.
On the basis of technique scheme, the line of centres of the center of the center of described the first installing hole, the second installing hole, the center of the 3rd installing hole and the 4th installing hole is orthogonal.
On the basis of technique scheme, described the first built-in fitting, the second built-in fitting, the 3rd built-in fitting and the 4th built-in fitting are the reinforcing bar that is arranged in arrays.
Compared with prior art, advantage of the present invention is as follows:
(1) the present invention has changed traditional bridge tower beam sequence of construction, and first lifting cross beam support completes top rail construction, then overarm brace is transferred to the construction location to middle cross beam, construction middle cross beam, after middle cross beam has been constructed, then transfers overarm brace to ground and removes.Thereby the installation and removal of overarm brace is all only needed once, simplified bridge tower crossbeam and built operation, install and the activity duration of removing overarm brace thereby saved, be convenient to the rapid construction of bridge tower crossbeam, improve bridge construction efficiency.
(2) for the H bridge tower with suspension cable, adopt the present invention, before middle cross beam, to build completely due to top rail, top rail just can proceed to main cable construction after having built, thereby is conducive to the rapid construction of such bridge, improves the efficiency of construction of such bridge.
(3) the present invention has avoided the spatial limitation of bridge tower beam structure to overarm brace installation and removal, and the installation and removal of overarm brace all can carry out on ground, thereby is conducive to Fast Installation and the dismounting of overarm brace, improves bridge construction efficiency.
Brief description of the drawings
Fig. 1 is after completing top rail in the embodiment of the present invention and building, structural representation when overarm brace is positioned on the first steel plate and the second steel plate;
Fig. 2 is the sectional view of Fig. 1 along A-A direction;
Fig. 3 excises in the embodiment of the present invention after the first steel plate and the second steel plate, and overarm brace is transferred to the structural representation on the 3rd steel plate and the 4th steel plate time;
Fig. 4 excises in the embodiment of the present invention after the 3rd steel plate and the 4th steel plate, and overarm brace is transferred to the structural representation to ground.
Reference numeral: 1-the first king-post, 2-top rail, 3-vertically-displacable continuous jack, 4-the second king-post, 5-overarm brace, 6-distribution beam, 7-the first steel plate, 8-the first built-in fitting, 9-the second steel plate, 10-the second built-in fitting, 11-the 3rd steel plate, 12-the 3rd built-in fitting, 13-the 4th steel plate, 14-the 4th built-in fitting, 15-middle cross beam.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
The construction method of the bridge tower crossbeam that the embodiment of the present invention provides, bridge tower comprises that the first king-post 1 side, second king-post 4 with the first king-post 1 relative side relative with the second king-post 4 with the second king-post 4, the first king-posts 1 being oppositely arranged is inner side; This construction method comprises the following steps:
S1: in the inner side of the first king-post 1, along the top of burying the first built-in fitting 8 and the 3rd built-in fitting 12, the first built-in fittings 8 underground perpendicular to the direction of the first king-post 1 and be positioned at the 3rd built-in fitting 12; In the inner side of the second king-post 4, along burying underground and the second built-in fitting 10 and the 4th built-in fitting 14 perpendicular to the direction of the second king-post 4; The second built-in fitting 10 and the first built-in fitting 8 are oppositely arranged, and the 4th built-in fitting 14 and the 3rd built-in fitting 12 are oppositely arranged; The first built-in fitting 8, the second built-in fitting 10, the 3rd built-in fitting 12 and the 4th built-in fitting 14 are the reinforcing bar that is arranged in arrays.
The first built-in fitting 8, the second built-in fitting 10, the 3rd built-in fitting 12 and the 4th built-in fitting 14 include pre-buried end and exposed junction, the pre-buried end of the first built-in fitting 8 and the 3rd built-in fitting 12 is all imbedded the inside of the first king-post 1, and the exposed junction of the first built-in fitting 8 and the 3rd built-in fitting 12 all exposes to the inner side of the first king-post 1; The pre-buried end of the second built-in fitting 10 and the 4th built-in fitting 14 is all imbedded the inside of the second king-post 4, and the exposed junction of the second built-in fitting 10 and the 4th built-in fitting 14 all exposes to the inner side of the second king-post 4.
Weld the first steel plate 7 at the exposed junction of the first built-in fitting 8, weld the second steel plate 9 at the exposed junction of the second built-in fitting 10, at exposed junction welding the 3rd steel plate 11 of the 3rd built-in fitting 12, at exposed junction welding the 4th steel plate 13 of the 4th built-in fitting 14.
S2: the base angle of existing overarm brace 5 both sides is erected at respectively to the top of the first steel plate 7 and the second steel plate 9, shown in Fig. 1 and Fig. 2.
S3: the top at the level frame of overarm brace 5 arranges soffit formwork, in the both sides of level frame, side template is all set; Soffit formwork, two side templates, the first king-post 1 and the second king-posts 4 form and build space; Building concreting formation top rail 2 in space, while building, at reserved the first installing hole of a side and second installing hole of top rail 2, reserve the 3rd installing hole and the 4th installing hole at the opposite side of top rail 2; The center of the first installing hole, the center of the second installing hole, the center of the 3rd installing hole and the line of centres of the 4th installing hole are orthogonal; Top rail 2 concrete settings, until after concrete strength and modulus of elasticity meet design requirement, remove soffit formwork and side template, complete the construction of top rail 2.
S4: four vertically-displacable continuous jacks 3 are set at the top of top rail 2: be connected with the first steel strand the first vertically-displacable continuous jack, be connected with the second steel strand the second vertically-displacable continuous jack, be connected with the 3rd steel strand the 3rd vertically-displacable continuous jack, be connected with the 4th vertically-displacable continuous jack of the 4th steel strand.
Two distribution beam 6: the first distribution beam, the second distribution beam are all hung to the below of the level frame of overarm brace 5, the first steel strand are connected with the first distribution beam through the first installing hole, and the 3rd steel strand pass the 3rd installing hole and are connected with the first distribution beam; The second steel strand are connected with the second distribution beam through the second installing hole, and the 4th steel strand are connected with the second distribution beam through the 4th installing hole.
S5: promote the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, promote the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack, the first distribution beam and the second distribution beam drive overarm brace 5 to rise, after the base angle of overarm brace 5 both sides departs from the first steel plate 7 and the second steel plate 9, excision the first steel plate 7 and the second steel plate 9.
S6: transfer the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, transfer the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack, the first distribution beam and the second distribution beam drive overarm brace 5 to transfer, the base angle of overarm brace 5 both sides is erected at respectively to the top of the 3rd steel plate 11 and the 4th steel plate 13, shown in Figure 3.
S7: come again step S3 to S5, using the top rail in step S3 to S5 2 as middle cross beam 15; The first steel plate 7 in step S5 is replaced with to the 3rd steel plate 11, the second steel plate 9 in step S5 is replaced with to the 4th steel plate 13, specifically comprise the following steps:
S701: the top at the level frame of overarm brace 5 arranges soffit formwork, in the both sides of level frame, side template is all set; Soffit formwork, two side templates, the first king-post 1 and the second king-posts 4 form and build space; Building concreting formation middle cross beam 15 in space, while building, at reserved the first installing hole of a side and second installing hole of middle cross beam 15, reserve the 3rd installing hole and the 4th installing hole at the opposite side of middle cross beam 15; The center of the first installing hole, the center of the second installing hole, the center of the 3rd installing hole and the line of centres of the 4th installing hole are orthogonal; Middle cross beam 15 concrete settings, until after concrete strength and modulus of elasticity meet design requirement, remove soffit formwork and side template, complete the construction of middle cross beam 15.
S702: four vertically-displacable continuous jacks 3 are set at the top of middle cross beam 15: be connected with the first steel strand the first vertically-displacable continuous jack, be connected with the second steel strand the second vertically-displacable continuous jack, be connected with the 3rd steel strand the 3rd vertically-displacable continuous jack, be connected with the 4th vertically-displacable continuous jack of the 4th steel strand.
S703: two distribution beam 6: the first distribution beam, the second distribution beam are all hung to the below of the level frame of overarm brace 5, the first steel strand are connected with the first distribution beam through the first installing hole, the 3rd steel strand pass the 3rd installing hole and are connected with the first distribution beam; The second steel strand are connected with the second distribution beam through the second installing hole, and the 4th steel strand are connected with the second distribution beam through the 4th installing hole.
S704: promote the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, promote the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack, the first distribution beam and the second distribution beam drive overarm brace 5 to rise, depart from after the 3rd steel plate 11 and the 4th steel plate 13 excision the 3rd steel plate 11 and the 4th steel plate 13 until the base angle of overarm brace 5 both sides.
S8: transfer the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, transfer the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack, the first distribution beam and the second distribution beam drive overarm brace 5 to transfer, overarm brace 5 is transferred to ground and removed, shown in Figure 4.
When embodiment of the present invention practical application, in the process of construction top rail 2, after space is built in formation, building in space before concreting forms top rail 2, can apply prefabricating load building in space, overarm brace 5 be carried out to precompressed, removal prefabricating load after precompressed completes.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these amendment and modification within the scope of the claims in the present invention and equivalent technologies thereof, these revise and modification also within protection scope of the present invention.
The prior art that the content of not describing in detail in manual is known to the skilled person.
Claims (6)
1. the construction method of a bridge tower crossbeam, described bridge tower comprises the first king-post (1) and the second king-post (4) that are oppositely arranged, and a side, the second king-post (4) side relative with the first king-post (1) that the first king-post (1) is relative with the second king-post (4) is inner side; It is characterized in that, described construction method comprises the following steps:
Step 1: in the inner side of the first king-post (1), along burying the first built-in fitting (8) and the 3rd built-in fitting (12) underground perpendicular to the direction of the first king-post (1), the first built-in fitting (8) is positioned at the top of the 3rd built-in fitting (12); In the inner side of the second king-post (4), along burying underground and the second built-in fitting (10) and the 4th built-in fitting (14) perpendicular to the direction of the second king-post (4); The second built-in fitting (10) is oppositely arranged with the first built-in fitting (8), and the 4th built-in fitting (14) is oppositely arranged with the 3rd built-in fitting (12);
The first built-in fitting (8), the second built-in fitting (10), the 3rd built-in fitting (12) and the 4th built-in fitting (14) include pre-buried end and exposed junction, the pre-buried end of the first built-in fitting (8) and the 3rd built-in fitting (12) is all imbedded the inside of the first king-post (1), and the exposed junction of the first built-in fitting (8) and the 3rd built-in fitting (12) all exposes to the inner side of the first king-post (1); The pre-buried end of the second built-in fitting (10) and the 4th built-in fitting (14) is all imbedded the inside of the second king-post (4), and the exposed junction of the second built-in fitting (10) and the 4th built-in fitting (14) all exposes to the inner side of the second king-post (4);
Weld the first steel plate (7) at the exposed junction of the first built-in fitting (8), weld the second steel plate (9) at the exposed junction of the second built-in fitting (10), at exposed junction welding the 3rd steel plate (11) of the 3rd built-in fitting (12), at exposed junction welding the 4th steel plate (13) of the 4th built-in fitting (14);
Step 2: the top that the base angle of existing overarm brace (5) both sides is erected at respectively to the first steel plate (7) and the second steel plate (9);
Step 3: the top at the level frame of overarm brace (5) arranges soffit formwork, in the both sides of level frame, side template is all set; Soffit formwork, two side templates, the first king-post (1) and the second king-posts (4) form and build space; Form top rail (2) building in space concreting, while building, at reserved the first installing hole of a side and second installing hole of top rail (2), reserve the 3rd installing hole and the 4th installing hole at the opposite side of top rail (2); Top rail (2) concrete setting, until after concrete strength and modulus of elasticity meet design requirement, remove soffit formwork and side template, completes the construction of top rail (2);
Step 4: four vertically-displacable continuous jacks (3) are set at the top of top rail (2): be connected with the first steel strand the first vertically-displacable continuous jack, be connected with the second steel strand the second vertically-displacable continuous jack, be connected with the 3rd steel strand the 3rd vertically-displacable continuous jack, be connected with the 4th vertically-displacable continuous jack of the 4th steel strand;
By two distribution beam (6): the first distribution beam, the second distribution beam are all hung at the below of the level frame of overarm brace (5), the first steel strand are connected with the first distribution beam through the first installing hole, the 3rd steel strand are connected with the first distribution beam through the 3rd installing hole; The second steel strand are connected with the second distribution beam through the second installing hole, the 4th steel strand are connected with the second distribution beam through the 4th installing hole;
Step 5: promote the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, promote the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack; The first distribution beam and the second distribution beam drive overarm brace (5) to rise, after the base angle of overarm brace (5) both sides departs from the first steel plate (7) and the second steel plate (9), excision the first steel plate (7) and the second steel plate (9);
Step 6: transfer the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, transfer the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack, the first distribution beam and the second distribution beam drive overarm brace (5) to transfer, and the base angle of overarm brace (5) both sides are erected at respectively to the top of the 3rd steel plate (11) and the 4th steel plate (13);
Step 7: come again step 3 to step 5, the top rail (2) in using step 3 to step 5 is as middle cross beam (15); The first steel plate (7) in step 5 is replaced with to the 3rd steel plate (11), the second steel plate (9) in step 5 is replaced with to the 4th steel plate (13);
Step 8: after middle cross beam (15) has been constructed, by transferring the first distribution beam and the second distribution beam, overarm brace (5) is transferred to ground and removed.
2. the construction method of bridge tower crossbeam as claimed in claim 1, it is characterized in that: in step 3 after space is built in formation, form top rail (2) before building in space concreting, further comprising the steps of: in space, to apply prefabricating load building, overarm brace (5) is carried out to precompressed, removal prefabricating load after precompressed completes.
3. the construction method of bridge tower crossbeam as claimed in claim 1, is characterized in that: step 7 comprises the following steps:
Top at overarm brace (5) arranges soffit formwork, in the both sides of level frame, side template is all set; Soffit formwork, two side templates, the first king-post (1) and the second king-posts (4) form and build space; Form middle cross beam (15) building in space concreting, while building, at reserved the first installing hole of a side and second installing hole of middle cross beam (15), reserve the 3rd installing hole and the 4th installing hole at the opposite side of middle cross beam (15); Middle cross beam (15) concrete setting, until after concrete strength and modulus of elasticity meet design requirement, remove soffit formwork and side template, completes the construction of middle cross beam (15);
At the top of middle cross beam (15), four vertically-displacable continuous jacks (3) are set: be connected with the first steel strand the first vertically-displacable continuous jack, be connected with the second steel strand the second vertically-displacable continuous jack, be connected with the 3rd steel strand the 3rd vertically-displacable continuous jack, be connected with the 4th vertically-displacable continuous jack of the 4th steel strand;
By two distribution beam (6): the first distribution beam, the second distribution beam are all hung at the below of the level frame of overarm brace (5), the first steel strand are connected with the first distribution beam through the first installing hole, the 3rd steel strand are connected with the first distribution beam through the 3rd installing hole; The second steel strand are connected with the second distribution beam through the second installing hole, the 4th steel strand are connected with the second distribution beam through the 4th installing hole;
Promote the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, promote the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack, the first distribution beam and the second distribution beam drive overarm brace (5) to rise, depart from after the 3rd steel plate (11) and the 4th steel plate (13) excision the 3rd steel plate (11) and the 4th steel plate (13) until the base angle of overarm brace (5) both sides.
4. the construction method of bridge tower crossbeam as claimed in claim 1, is characterized in that, step 8 comprises the following steps:
Transfer the first distribution beam by the first vertically-displacable continuous jack and the 3rd vertically-displacable continuous jack, transfer the second distribution beam by the second vertically-displacable continuous jack and the 4th vertically-displacable continuous jack, the first distribution beam and the second distribution beam drive overarm brace (5) to transfer, and overarm brace (5) is transferred to ground and removed.
5. the construction method of the bridge tower crossbeam as described in claim 1 to 4 any one, is characterized in that: the center of described the first installing hole, the center of the second installing hole, the center of the 3rd installing hole and the line of centres of the 4th installing hole are orthogonal.
6. the construction method of the bridge tower crossbeam as described in claim 1 to 4 any one, is characterized in that: described the first built-in fitting (8), the second built-in fitting (10), the 3rd built-in fitting (12) and the 4th built-in fitting (14) are the reinforcing bar that is arranged in arrays.
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| CN201410292483.7A CN104109999B (en) | 2014-06-26 | 2014-06-26 | The construction method of bridge tower thwart beam |
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| CN104109999B CN104109999B (en) | 2016-08-24 |
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| CN105442453A (en) * | 2015-11-30 | 2016-03-30 | 中交四公局第六工程有限公司 | Construction method for suspension bridge tower crossbeam combination support |
| CN105544398A (en) * | 2015-12-15 | 2016-05-04 | 中建交通建设集团有限公司 | Horizontal force self-balancing type splayed heavy type upper air support system and installation method thereof |
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| CN110016864A (en) * | 2019-04-08 | 2019-07-16 | 中国铁建大桥工程局集团有限公司 | One kind having camber line polymorphic structure bridge upper beam construction method |
| CN110512523A (en) * | 2019-08-05 | 2019-11-29 | 中铁七局集团有限公司 | A kind of construction method of large span gate-type upper beam Split type supporting stand |
| CN110804952A (en) * | 2019-11-14 | 2020-02-18 | 贵州省公路工程集团有限公司 | Suspension bridge beam prefabrication and assembly construction process |
| CN111455847A (en) * | 2020-03-12 | 2020-07-28 | 中铁大桥局集团有限公司 | Layered construction method suitable for bridge tower high haunch upper beam |
| CN112144412A (en) * | 2020-09-25 | 2020-12-29 | 四川交投建设工程股份有限公司 | Construction method of prefabricated assembled intercolumnar tie beam |
| CN113445421A (en) * | 2021-07-08 | 2021-09-28 | 中铁大桥局第七工程有限公司 | Construction method for integrally lowering tower column and crossbeam support |
| CN116716813A (en) * | 2023-06-09 | 2023-09-08 | 中铁广州工程局集团有限公司 | Cast-in-situ bracket structure of ultrahigh main tower beam of cable-stayed bridge and construction method |
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| CN104831632A (en) * | 2015-04-24 | 2015-08-12 | 正坚建设有限公司 | Upper transverse beam and lower transverse beam construction method for bridge cable bent tower |
| CN104831632B (en) * | 2015-04-24 | 2016-07-20 | 正坚建设有限公司 | A kind of bridge cable tower entablature and sill construction method |
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| CN107044090B (en) * | 2017-05-09 | 2019-02-15 | 中铁大桥局集团有限公司 | A kind of construction method of dual deck bridge |
| CN106930194A (en) * | 2017-05-10 | 2017-07-07 | 山西路桥第二工程有限公司 | Inter-tie and pier stud global formation construction method and template used support |
| CN106930194B (en) * | 2017-05-10 | 2018-10-30 | 山西路桥第二工程有限公司 | Inter-tie and pier stud global formation construction method and template used holder |
| CN107100069A (en) * | 2017-06-12 | 2017-08-29 | 广西路建工程集团有限公司 | A kind of concrete cylindrical pier capping beam and binder inverted construction method |
| CN110016864A (en) * | 2019-04-08 | 2019-07-16 | 中国铁建大桥工程局集团有限公司 | One kind having camber line polymorphic structure bridge upper beam construction method |
| CN110512523A (en) * | 2019-08-05 | 2019-11-29 | 中铁七局集团有限公司 | A kind of construction method of large span gate-type upper beam Split type supporting stand |
| CN110804952A (en) * | 2019-11-14 | 2020-02-18 | 贵州省公路工程集团有限公司 | Suspension bridge beam prefabrication and assembly construction process |
| CN111455847A (en) * | 2020-03-12 | 2020-07-28 | 中铁大桥局集团有限公司 | Layered construction method suitable for bridge tower high haunch upper beam |
| CN112144412A (en) * | 2020-09-25 | 2020-12-29 | 四川交投建设工程股份有限公司 | Construction method of prefabricated assembled intercolumnar tie beam |
| CN113445421A (en) * | 2021-07-08 | 2021-09-28 | 中铁大桥局第七工程有限公司 | Construction method for integrally lowering tower column and crossbeam support |
| CN116716813A (en) * | 2023-06-09 | 2023-09-08 | 中铁广州工程局集团有限公司 | Cast-in-situ bracket structure of ultrahigh main tower beam of cable-stayed bridge and construction method |
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