CN114086478A - Main tower lower cross beam construction system and method with corbels serving as temporary supports - Google Patents
Main tower lower cross beam construction system and method with corbels serving as temporary supports Download PDFInfo
- Publication number
- CN114086478A CN114086478A CN202111415556.3A CN202111415556A CN114086478A CN 114086478 A CN114086478 A CN 114086478A CN 202111415556 A CN202111415556 A CN 202111415556A CN 114086478 A CN114086478 A CN 114086478A
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- bracket
- frame
- support
- arc
- center frame
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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
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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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
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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
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The application discloses a main tower bottom end rail construction system and method that temporary support was simultaneously done to bracket relates to main tower bottom end rail construction field, it includes supporting beam system and support stake system, supporting beam system includes arc center frame and sets firmly the side frame in arc center frame both sides, the height that highly is greater than arc center frame both ends of arc center frame intermediate position of arc center frame, the side frame sets firmly the top surface in the bracket, supporting beam system still including setting firmly the truss of making level on side frame and arc center frame top, the support stake system includes the center support stake, center support stake top butt in arc center frame intermediate position bottom. This application has when having guaranteed support intensity, has saved the effect of the required material of construction.
Description
Technical Field
The invention relates to the field of construction of a lower cross beam of a main tower, in particular to a construction system and a construction method of a lower cross beam of a main tower, wherein a bracket is also used as a temporary support.
Background
At present, a large-span suspension bridge is mostly in a combined mode of a bridge tower and a lower cross beam, a main bridge and an approach bridge are supported on the bridge tower, vertical supporting force is provided for the main bridge and the approach bridge, and the tower columns on two sides of the bridge tower limit the movement of the main bridge and the approach bridge in the horizontal direction.
In the correlation technique, the two opposite sides of two tower bodies are provided with the bracket respectively, and the bottom end rail is located the bracket top, when erectting the bottom end rail, generally need erect bottom end rail support system earlier, and bottom end rail support system includes that a plurality of intervals arrange as the steel-pipe pile of supporting role and be fixed in supporting beam etc. on steel-pipe pile top.
For the lower beam bracket system in the related art, the inventor considers that the following defects exist: in order to ensure the support strength of the bracket system, a large amount of construction materials such as steel pipes, steel pipe columns and the like need to be consumed, and a certain improvement space exists.
Disclosure of Invention
In order to save materials required by construction, the application provides a main tower lower beam construction system and a method using corbels as temporary supports.
The application provides a main tower lower beam construction system and method that bracket doubles as interim support adopts following technical scheme:
the utility model provides a main tower bottom end rail construction system that temporary support was done to bracket concurrently, includes supporting beam system and support pile system, a supporting beam system includes the arc center frame and sets firmly in the side frame of arc center frame both sides, the height that highly is greater than arc center frame both ends of arc center frame intermediate position of arc center frame, the side frame sets firmly in the top surface of bracket, the supporting beam system is still including setting firmly the truss of making level on side frame and arc center frame top, support pile system includes central support pile, central support pile top butt is in arc center frame intermediate position bottom.
By adopting the technical scheme, the two side frames are respectively fixed on the bracket which is constructed, the supporting strength of the two ends of the supporting beam system is improved by utilizing the supporting force of the bracket, and the arc-shaped center frame and the center supporting pile are arranged, so that the lower beam construction system can integrally support the lower beam template and the lower beam during pouring; in addition, the leveling truss is arranged, so that the top end face of the lower beam construction system is guaranteed to be a plane, and the lower beam construction system is convenient to construct a template for lower beam pouring.
Preferably, the bracket below is provided with the bracket support, the bracket support includes bracket support stake and butt in the bracket support frame of bracket support stake top, bracket support frame top butt in the lower surface of bracket, after the bracket reaches predetermined intensity, will the bracket support frame is as the side frame.
By adopting the technical scheme, the bracket construction is completed, and after the bracket reaches the preset strength, the bracket support frame erected during bracket construction is used as the side frame, so that the construction step of re-erecting the side frame and the time required for erection are saved, the materials required for construction are further saved, the construction process is saved, and the whole construction period is shortened.
Preferably, the bracket support frame includes the chassis, set firmly the enhancement truss on the chassis, it is provided with the roof to strengthen the truss top, strengthen the truss including set firmly in the fixed part of chassis and can dismantle the portion of dismantling of connecting between chassis and roof, will can dismantle the portion and dismantle the back formation and hold the chamber, the tip of arc center frame is fixed in and holds in the chamber.
Through adopting above-mentioned technical scheme, will dismantle the back, form between chassis and the roof and be used for holding the chamber that holds of arc center rest tip, when connecting arc center rest and side frame, insert the one end of arc center rest in holding the chamber and fixed with the chassis, increased the joint strength between arc center rest and the side frame, increased the stability in a supporting beam system.
Preferably, the end part of the arc-shaped center frame is a plane, and the end part of the arc-shaped center frame is fixedly arranged on the underframe.
Through adopting above-mentioned technical scheme, increased the joint strength between the tip of arc center rest and the side frame, reduced the connection degree of difficulty between arc center rest and the side frame.
Preferably, the top plate is detachably connected to the reinforcing truss.
Through adopting above-mentioned technical scheme, before connecting the arc center frame, pull down the roof earlier, hang the arc center frame to the side frame top again, directly after the adjustment position transfer the arc center frame can, need not to adjust the distance between two sets of side frames, be convenient for be connected between arc center frame and the side frame.
Preferably, an upward extending steel pipe column is fixedly arranged on the bracket supporting pile and abuts against the bottom end of the side frame.
Through adopting above-mentioned technical scheme, carry out further support to the side frame, increased the stability of side frame.
Preferably, the center support pile comprises a plurality of vertically arranged middle steel pipe piles, and the top end of each middle steel pipe pile abuts against the bottom end of the arc-shaped center frame.
By adopting the technical scheme, the arc-shaped center frame is supported, materials required by construction are saved, and the requirements of energy conservation and environmental protection are met.
A construction method of a main tower lower beam construction system with a bracket serving as a temporary support comprises the following steps:
s1, after the bracket reaches the preset strength, the bracket supporting frame and the bracket supporting pile are disconnected, the bracket supporting frame is used as a side frame, and two ends of the arc-shaped center frame are respectively connected with the two side frames;
s2, hoisting the side frames and the arc-shaped center frame to the top surface of the bracket, and fixing the side frames on the top surface of the bracket;
and S3, erecting the central support pile, and enabling the top end of the central support pile to abut against the bottom end of the middle position of the arc-shaped central frame.
In summary, the present application includes at least one of the following beneficial technical effects:
1. compared with the linear support frame arranged along the length direction of the lower cross beam in the related technology, the support frame has the advantages that the support strength is guaranteed, meanwhile, materials required by construction are saved, the requirements of energy conservation and environmental protection are met, and a good reference effect is provided for subsequent similar engineering;
2. after the corbel construction is finished and the corbel reaches the preset strength, the corbel support frame erected during corbel construction is used as the side frame, so that the construction step of re-erecting the side frame and the time required for erection are saved, the materials required for construction are further saved, the construction process is saved, and the whole construction period is shortened.
Drawings
Fig. 1 is a schematic structural view showing a bracket and a bracket holder structure in an embodiment of the present application.
Fig. 2 is a schematic structural view showing a lower beam construction system in the embodiment of the present application.
Fig. 3 is a partial schematic view of the top plate and the detachable portion of the reinforcing truss hidden to show the structure of the side frame and the arc-shaped center frame in the embodiment of the present application.
Description of reference numerals:
1. a bracket; 11. a bracket supporting pile; 12. a bracket support; 121. a chassis; 122. a top plate; 123. reinforcing the truss; 1231. a fixed part; 1232. a detachable portion; 2. a side frame; 3. an arc-shaped center frame; 4. leveling the truss; 5. upwards extending the steel pipe column; 6. a central support pile; 61. and (5) a middle steel pipe column.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a construction system and a construction method of a lower beam of a main tower with brackets serving as temporary supports.
Referring to fig. 1, a main tower lower beam construction system with a bracket serving as a temporary support comprises a support beam system and a support pile system positioned at the bottom end of the support beam system.
The bracket below is provided with bracket support 1, and bracket support 1 includes bracket support stake 11 and butt in bracket support frame 12 of bracket support stake 11 top, and bracket support frame 12 includes chassis 121, roof 122 and sets up the truss 123 of strengthening between the two, and chassis 121 level sets up, and the slope direction slope of roof 122 along the bracket lower surface just butts in the lower surface of bracket, and roof 122 can be dismantled and connect in truss 123 of strengthening.
The reinforcing truss 123 comprises a fixing part 1231 fixed between the base frame 121 and the top plate 122 in a welding manner and detachable parts 1232 pressed between the base frame 121 and the top plate 122 through high-strength bolts, two groups of fixing parts 1231 are symmetrically arranged on two sides of the detachable parts 1232, and after the detachable parts 1232 are detached, an accommodating cavity is formed between the two fixing parts 1231.
With reference to fig. 1, 2, and 3, in an actual construction process, in order to save construction materials and meet requirements of energy saving and environmental protection, after the corbel reaches a predetermined strength, the connection between the corbel support frame 12 and the corbel support pile 11 is released, and the detachable portion 1232 of the top plate 122 and the reinforcing truss 123 is detached to form the side frame 2 that can be fixed to the top surface of the corbel.
Be provided with arc center frame 3 between two side frames 2, the centre of a circle of the ring at arc center frame 3 place is located arc center frame 3 below, and the both ends terminal surface of arc center frame 3 is the plane, and the tip at arc center frame 3 both ends stretches into in holding the chamber and welded fastening is on chassis 121.
After the two ends of the arc-shaped center frame 3 are respectively fixed with the two side frames 2, the arc-shaped center frame 3 and the side frames 2 are lifted upwards, and the two side frames 2 are respectively fixed on the top surfaces of the brackets through anchor bolts.
The top ends of the side frames 2 and the arc-shaped center frame 3 are also fixedly welded with leveling trusses 4, and the leveling trusses 4 are used for enabling the top surfaces of the supporting beam systems to be in a horizontal state so as to facilitate the building of the template for pouring the lower cross beam.
The arc center frame 3, the two side frames 2 and the leveling truss 4 form a supporting beam system together.
The bracket supports stake 11 and includes the side steel-pipe column that many intervals set up, the vertical setting of side steel-pipe column, when bracket support frame 12 was used as side frame 2, in part side steel-pipe column top welded fastening rather than coaxial upward extending steel-pipe column 5, upward extending 5 top welded fastening of steel-pipe column has the supporting steel sheet, supporting steel sheet butt in 2 bottoms of side frame, in order to increase the support intensity to side frame 2, increase the stability of side frame 2.
A central support pile 6 is arranged between the two groups of bracket support piles 11, and the two groups of bracket support piles 11 are symmetrically arranged relative to the central support pile 6. The center support pile 6 comprises a plurality of middle steel pipe columns 61 arranged at intervals, the middle steel pipe columns 61 are vertically arranged, supporting steel plates are fixed to the top ends of the middle steel pipe columns 61 in a welded mode, and the supporting steel plates are abutted to the bottom end of the arc center frame 3.
The bracket supporting pile 11, the upward extending steel pipe column 5 and the central supporting pile 6 jointly form a supporting pile system.
A construction method of a main tower lower beam construction system with a bracket serving as a temporary support comprises the following steps:
s1, erecting a bracket support 1, installing a bracket template and pouring concrete together with the segment corresponding to the tower body;
s2, after the corbel reaches a preset strength, detaching the top plate 122 and the detachable portions 1232 in the reinforcing truss 123 to form a cavity between the two groups of fixing portions 1231, taking the corbel support frame 12 as the side frames 2, hoisting the arc-shaped center frame 3 to the upper portions of the side frames 2, adjusting the position of the arc-shaped center frame 3 to enable the arc-shaped center frame 3 to be located in the middle of the two side frames 2, lowering the arc-shaped center frame 3 to enable the two ends of the arc-shaped center frame 3 to be located in the two accommodating cavities respectively, and welding and fixing the bottom end faces of the two ends of the arc-shaped center frame 3 to the bottom frame 121;
s3, determining the position and the erection height of the central support pile 6, and erecting the central support pile 6;
s4, determining the height of the upward extending steel pipe column 5, and welding and fixing the bottom end of the upward extending steel pipe column 5 to the top end of the side steel pipe column;
s5, hoisting the side frames 2 and the arc-shaped center frame 3 upwards through a tower crane, fixing the side frames 2 and the top surface of the bracket through anchor bolts, and enabling the arc-shaped center frame 3;
s6, erecting welding leveling trusses 4 at the top ends of the side frames 2 and the top ends of the arc-shaped center frames 3 to enable the top surfaces of the supporting beam systems to be in a horizontal state, so that the lower cross beam pouring template can be conveniently erected;
and S7, building a template for pouring the lower cross beam.
A construction method of a main tower lower beam construction system with a bracket serving as a temporary support is characterized in that an original bracket support frame 12 in a bracket support pile 11 is used as a two-side base in the lower beam construction system, the step of erecting a side frame 2 and the time required for erecting are omitted, not only are materials required for construction saved, but also construction procedures are saved, the whole construction period is shortened, in addition, through the cooperation of an arc-shaped center frame 3, a leveling truss 4 and a center support pile 6, compared with a linear support frame, when the support strength is ensured, the materials required for construction are saved, and the requirements of energy conservation and environmental protection are met.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a main tower bottom end rail construction system that bracket was simultaneously as interim support which characterized in that: including supporting beam system and support stake system, it includes arc center frame (3) and sets firmly in side frame (2) of arc center frame (3) both sides to prop up a supporting beam system, the height that highly is greater than arc center frame (3) both ends of arc center frame (3) intermediate position of arc center frame (3), side frame (2) set firmly in the top surface of bracket, it still including setting firmly in side frame (2) and arc center frame (3) top truss (4) of making level to prop up a supporting beam system, prop up a supporting beam system and include central support stake (6), central support stake (6) top butt is in arc center frame (3) intermediate position bottom.
2. The main tower lower beam construction system with the bracket serving as a temporary support as claimed in claim 1, wherein: the bracket below is provided with bracket support (1), bracket support (1) include bracket support stake (11) and butt in bracket support frame (12) of bracket support stake (11) top, bracket support frame (12) top butt in the lower surface of bracket, after the bracket reaches predetermined intensity, will bracket support frame (12) are as side frame (2).
3. The main tower lower beam construction system with the bracket serving as a temporary support as claimed in claim 2, wherein: bracket support frame (12) include chassis (121), set firmly on chassis (121) and strengthen truss (123), strengthen truss (123) top and be provided with roof (122), strengthen truss (123) including set firmly fixed part (1231) in chassis (121) and can dismantle the portion of dismantling (1232) of connecting between chassis (121) and roof (122), will can dismantle the portion of dismantling (1232) and dismantle the back and form and hold the chamber, the tip of arc type centre frame (3) is fixed in and holds in the chamber.
4. The main tower lower beam construction system with brackets also used as temporary supports according to claim 3, characterized in that: the end part of the arc-shaped center frame (3) is a plane, and the end part of the arc-shaped center frame (3) is fixedly arranged on the bottom frame (121).
5. The main tower lower beam construction system with brackets also used as temporary supports according to claim 3, characterized in that: the top plate (122) is detachably connected to the reinforced truss (123).
6. The main tower lower beam construction system with the bracket serving as a temporary support as claimed in claim 2, wherein: and an upward extending steel pipe column (5) is fixedly arranged on the bracket supporting pile (11), and the upward extending steel pipe column (5) is abutted against the bottom end of the side frame (2).
7. The main tower lower beam construction system with the bracket serving as a temporary support as claimed in claim 2, wherein: the center support pile (6) comprises a plurality of vertically arranged middle steel pipe piles, and the top ends of the middle steel pipe piles are abutted to the bottom end of the arc-shaped center frame (3).
8. The method for constructing a main tower lower beam construction system with brackets serving as temporary supports according to any one of claims 2 to 7, which comprises the following steps:
s1, after the bracket reaches the preset strength, the bracket support frame (12) and the bracket support pile (11) are disconnected, the bracket support frame (12) is used as a side frame (2), and two ends of the arc-shaped center frame (3) are respectively connected with the two side frames (2);
s2, hoisting the side frames (2) and the arc-shaped center frame (3) to the top surface of the bracket, and fixing the side frames (2) on the top surface of the bracket;
s3, erecting the central supporting pile (6) to enable the top end of the central supporting pile (6) to abut against the bottom end of the middle position of the arc-shaped central frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111415556.3A CN114086478B (en) | 2021-11-25 | 2021-11-25 | Main tower lower cross beam construction system and method with bracket serving as temporary support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111415556.3A CN114086478B (en) | 2021-11-25 | 2021-11-25 | Main tower lower cross beam construction system and method with bracket serving as temporary support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114086478A true CN114086478A (en) | 2022-02-25 |
| CN114086478B CN114086478B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111415556.3A Active CN114086478B (en) | 2021-11-25 | 2021-11-25 | Main tower lower cross beam construction system and method with bracket serving as temporary support |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11181725A (en) * | 1997-12-22 | 1999-07-06 | Maeda Corp | Method for constructing horizontal beam of main tower made of concrete |
| CN201395769Y (en) * | 2009-05-27 | 2010-02-03 | 四川路桥建设股份有限公司 | Tie bar arch type bracket used for building bridge pylon concrete upper cross beam |
| KR101341618B1 (en) * | 2013-06-28 | 2013-12-13 | 해강산업주식회사 | Concrete form apparatus |
| 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 |
| CN109338869A (en) * | 2018-11-28 | 2019-02-15 | 中国铁建大桥工程局集团有限公司 | Bracket method for synchronously constructing under a kind of Cable stayed Bridge Main Tower |
| 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 |
| CN209816668U (en) * | 2019-03-06 | 2019-12-20 | 中交路桥建设有限公司 | Superelevation cable tower entablature construction support |
-
2021
- 2021-11-25 CN CN202111415556.3A patent/CN114086478B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11181725A (en) * | 1997-12-22 | 1999-07-06 | Maeda Corp | Method for constructing horizontal beam of main tower made of concrete |
| CN201395769Y (en) * | 2009-05-27 | 2010-02-03 | 四川路桥建设股份有限公司 | Tie bar arch type bracket used for building bridge pylon concrete upper cross beam |
| KR101341618B1 (en) * | 2013-06-28 | 2013-12-13 | 해강산업주식회사 | Concrete form apparatus |
| 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 |
| CN109338869A (en) * | 2018-11-28 | 2019-02-15 | 中国铁建大桥工程局集团有限公司 | Bracket method for synchronously constructing under a kind of Cable stayed Bridge Main Tower |
| CN209816668U (en) * | 2019-03-06 | 2019-12-20 | 中交路桥建设有限公司 | Superelevation cable tower entablature construction support |
| 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 |
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| CN114086478B (en) | 2023-09-08 |
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