CN114086478B - Main tower lower cross beam construction system and method with bracket serving as temporary support - Google Patents
Main tower lower cross beam construction system and method with bracket serving as temporary support Download PDFInfo
- Publication number
- CN114086478B CN114086478B CN202111415556.3A CN202111415556A CN114086478B CN 114086478 B CN114086478 B CN 114086478B CN 202111415556 A CN202111415556 A CN 202111415556A CN 114086478 B CN114086478 B CN 114086478B
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- bracket
- support
- arc
- frame
- shaped center
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Classifications
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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
-
- 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 lower beam construction system and a method with bracket serving as temporary support, and relates to the field of main tower lower beam construction. The application has the effect of saving materials required by construction while ensuring the supporting strength.
Description
Technical Field
The application relates to the field of main tower lower beam construction, in particular to a main tower lower beam construction system and method with bracket serving as temporary support.
Background
At present, the large-span suspension bridge is 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 movement of the main bridge and the approach bridge in the horizontal direction is limited by tower columns at two sides of the bridge tower.
In the related art, two opposite sides of two tower bodies are respectively provided with bracket, the lower beam is positioned above the bracket, and when the lower beam is erected, a lower beam support system is usually required to be erected first, and the lower beam support system comprises a plurality of steel pipe piles which are arranged at intervals and used for supporting, support beams fixed at the top ends of the steel pipe piles, and the like.
With respect to the lower beam bracket system in the related art, the inventors consider that the following drawbacks exist: in order to ensure the support strength of the support system, a large amount of construction materials such as steel pipes, steel pipe columns and the like are required 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 main tower lower beam construction method with brackets serving as temporary supports.
The main tower lower beam construction system and method with bracket serving as temporary support provided by the application adopts the following technical scheme:
the utility model provides a bracket is as main tower entablature construction system of interim support concurrently, includes supporting beam system and support stake system, supporting beam system includes arc type center frame and sets firmly in the side frame of arc type center frame both sides, the height that highly is greater than arc type center frame both ends of arc type center frame intermediate position, the side frame sets firmly in the top surface of bracket, supporting beam system is still including setting firmly in the truss of making level on side frame and arc type center frame top, support stake system includes center support stake, center support stake top butt is in arc type center frame intermediate position bottom.
By adopting the technical scheme, the two side frames are respectively fixed on the bracket after construction, the supporting strength of the two ends of the supporting beam system is improved by utilizing the supporting force of the bracket, and the lower beam construction system is integrally supported on the lower beam template and the lower beam in pouring by arranging the arc-shaped center frame and the center supporting piles; in addition, through setting up the truss of making level, guaranteed that the top terminal surface of bottom end beam construction system is the plane, be convenient for the construction of the template that is used for the bottom end beam to pour.
Preferably, a bracket support is arranged below the bracket, the bracket support comprises a bracket support pile and a bracket support frame which is abutted against the bracket support pile, the top end of the bracket support frame is abutted against the lower surface of the bracket, and the bracket support frame is used as a side frame after the bracket reaches a preset strength.
Through adopting above-mentioned technical scheme, bracket construction is accomplished, and after the bracket reaches predetermined intensity, the bracket support frame that sets up when constructing the bracket is used as the side frame, has saved the construction step of setting up the side frame again and has set up required time, has further saved the required material of construction, has practiced thrift the construction process, has shortened holistic construction period.
Preferably, the bracket support frame comprises a bottom frame, a reinforcing truss is fixedly arranged on the bottom frame, a top plate is arranged at the top end of the reinforcing truss, the reinforcing truss comprises a fixing part fixedly arranged on the bottom frame and a detachable part detachably connected between the bottom frame and the top plate, a containing cavity is formed after the detachable part is detached, and the end part of the arc-shaped center frame is fixed in the containing cavity.
Through adopting above-mentioned technical scheme, with dismantling the portion and pull down the back, form the chamber that holds that is used for holding arc type center rest tip between chassis and the roof, when connecting arc type center rest and side frame, insert the one end of arc type center rest in holding the chamber and fixed with the chassis, increased the joint strength between arc type center rest and the side frame, increased the stability in the 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.
By adopting the technical scheme, the connection strength between the end part of the arc-shaped center frame and the side frame is increased, and the connection difficulty between the arc-shaped center frame and the side frame is reduced.
Preferably, the top plate is detachably connected to the stiffening truss.
Through adopting above-mentioned technical scheme, before connecting the arc type center frame, will be first torn down the roof, hang arc type center frame to side frame top again, adjust the position after directly with arc type center frame transfer can, need not to adjust the distance between two sets of side frames, be convenient for be connected between arc type center frame and the side frame.
Preferably, the bracket support pile is fixedly provided with an upper extension steel pipe column, and the upper extension steel pipe column is abutted to the bottom end of the side frame.
By adopting the technical scheme, the side frame is further supported, so that the stability of the side frame is improved.
Preferably, the central support pile 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 ends of the arc-shaped central frames.
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 cross beam construction system with bracket serving as temporary support comprises the following steps:
s1, after the corbel reaches preset strength, removing connection between a corbel support frame and a corbel support pile, taking the corbel support frame as a side frame, and respectively connecting two ends of an arc-shaped center frame with 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 to the top surface of the bracket;
and S3, erecting a center support pile, and enabling the top end of the center support pile to be abutted to the bottom end of the middle position of the arc-shaped center frame.
In summary, the present application includes at least one of the following beneficial technical effects:
1. compared with a linear support frame arranged along the length direction of the lower cross beam in the related art, the support frame has the advantages that the support strength is ensured, meanwhile, the materials required by construction are saved, the energy-saving and environment-friendly requirements are met, and a good reference effect is provided for the subsequent similar engineering;
2. 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 by erection are omitted, the materials required by 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 bracket structure in an embodiment of the present application.
Fig. 2 is a schematic diagram showing the structure of the lower beam construction architecture in the embodiment of the present application.
Fig. 3 is a schematic view showing a partial structure of a side frame and an arc-shaped center frame structure in an embodiment of the present application by hiding detachable portions of a top plate and a reinforcing truss.
Reference numerals illustrate:
1. bracket; 11. bracket supporting piles; 12. bracket support; 121. a chassis; 122. a top plate; 123. a reinforcing truss; 1231. a fixing part; 1232. a detachable portion; 2. a side frame; 3. an arc-shaped center frame; 4. leveling the truss; 5. a steel pipe column is extended upwards; 6. a center support pile; 61. and a middle steel pipe column.
Detailed Description
The application is described in further detail below with reference to fig. 1-3.
The embodiment of the application discloses a main tower lower beam construction system and a main tower lower beam construction method with bracket serving as temporary support.
Referring to fig. 1, a main tower lower beam construction system with corbels serving as temporary supports comprises a support beam system and a support pile system positioned at the bottom end of the support beam system.
Bracket support 1 is provided with below the bracket, and bracket support 1 includes bracket support stake 11 and butt bracket support frame 12 in bracket support stake 11 top, and bracket support frame 12 includes chassis 121, roof 122 and sets up the stiffening truss 123 between the two, and chassis 121 level sets up, and roof 122 inclines and the butt in the lower surface of bracket along the incline direction of bracket lower surface, and roof 122 can dismantle the connection in stiffening truss 123.
The reinforcing truss 123 includes a fixing portion 1231 welded and fixed between the bottom frame 121 and the top plate 122 and a detachable portion 1232 compressed between the bottom frame 121 and the top plate 122 by a high-strength bolt, the fixing portion 1231 is symmetrically provided with two groups on both sides of the detachable portion 1232, and after the detachable portion 1232 is detached, an accommodating chamber is formed between the two fixing portions 1231.
In the actual construction process, referring to fig. 1, 2 and 3, in order to save construction materials and meet the requirements of energy conservation and environmental protection, after the bracket reaches the predetermined strength, the connection relationship between the bracket support frame 12 and the bracket support pile 11 is released, and the detachable parts 1232 in the top plate 122 and the reinforced truss 123 are detached to form the side frame 2 which can be fixed on the top surface of the bracket.
An arc-shaped center frame 3 is arranged between the two side frames 2, the circle center of a circular ring where the arc-shaped center frame 3 is located below the arc-shaped center frame 3, the end faces of the two ends of the arc-shaped center frame 3 are planes, and the end parts of the two ends of the arc-shaped center frame 3 extend into the accommodating cavity and are welded and fixed on the underframe 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 side frame 2 and the arc center frame 3 top are welded and fixed with leveling trusses 4, and the leveling trusses 4 are used for enabling the top surface of the support beam system to be in a horizontal state so as to facilitate the construction of a lower beam pouring template.
The arc-shaped center frame 3, the two side frames 2 and the leveling truss 4 together form a support beam system.
The bracket supporting pile 11 comprises a plurality of side steel pipe columns arranged at intervals, the side steel pipe columns are vertically arranged, when the bracket supporting frame 12 is used as the side frame 2, the upper extending steel pipe column 5 coaxial with the bracket supporting pile is welded and fixed at the top end of part of the side steel pipe columns, a supporting steel plate is welded and fixed at the top end of the upper extending steel pipe column 5, and the supporting steel plate is abutted to the bottom end of the side frame 2 so as to increase the supporting strength of the side frame 2 and the stability of the side frame 2.
A central supporting pile 6 is arranged between the two groups of bracket supporting piles 11, and the two groups of bracket supporting piles 11 are symmetrically arranged about the central supporting pile 6. The center support pile 6 comprises a plurality of middle steel pipe columns 61 which are arranged at intervals, the middle steel pipe columns 61 are vertically arranged, supporting steel plates are fixedly welded at the top ends of the middle steel pipe columns 61 and are abutted to the bottom ends of the arc-shaped center frames 3.
The bracket support pile 11, the upper extension steel pipe column 5 and the center support pile 6 together form a support pile system.
A construction method of a main tower lower cross beam construction system with bracket serving as temporary support comprises the following steps:
s1, erecting a bracket support 1, installing a bracket template and pouring concrete together with a section corresponding to the tower body;
s2, after the corbels reach preset strength, detaching the top plate 122 and the detachable parts 1232 in the reinforced truss 123, forming a cavity between the two groups of fixed parts 1231, taking the corbel support frame 12 as a side frame 2, hoisting the arc-shaped center frame 3 to the position above the side frame 2, adjusting the position of the arc-shaped center frame 3 to enable the arc-shaped center frame 3 to be positioned in the middle of the two side frames 2, lowering the arc-shaped center frame 3 to enable two ends of the arc-shaped center frame 3 to be respectively positioned in the two accommodating cavities, and welding and fixing the bottom end surfaces of the two ends of the arc-shaped center frame 3 to the underframe 121;
s3, determining the position and the erection height of the center support pile 6, and erecting the center support pile 6;
s4, determining the height of the upper extension steel pipe column 5, and welding and fixing the bottom end of the upper extension steel pipe column 5 to the top end of the side steel pipe column;
s5, lifting the side frame 2 and the arc-shaped center frame 3 upwards through a tower crane, fixing the side frame 2 and the top surface of the bracket through an anchor bolt, and enabling the arc-shaped center frame 3;
s6, erecting a welding leveling truss 4 on the top end of the side frame 2 and the top end of the arc-shaped center frame 3, so that the top surface of the support beam system is in a horizontal state, and the construction of a template for pouring a lower beam is facilitated;
s7, building a lower beam pouring template.
The bracket supporting piles 11 are used as the base at two sides of the lower beam construction system, so that the step of erecting the side frames 2 and the time required for erecting are omitted, the materials required for construction are saved, the construction process is also saved, the whole construction period is shortened, and in addition, compared with a linear supporting frame, the arc-shaped center frame 3, the leveling truss 4 and the center supporting piles 6 are matched, the support strength is ensured, meanwhile, the materials required for construction are saved, and the energy-saving and environment-friendly requirements are met.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (6)
1. The utility model provides a bracket concurrently is main tower bottom end rail construction system of interim support which characterized in that: the support beam system comprises an arc-shaped center frame (3) and side frames (2) fixedly arranged on two sides of the arc-shaped center frame (3), the middle position of the arc-shaped center frame (3) is higher than the two ends of the arc-shaped center frame (3), the side frames (2) are fixedly arranged on the top surfaces of bracket legs, the support beam system further comprises leveling trusses (4) fixedly arranged on the top ends of the side frames (2) and the arc-shaped center frame (3), the support pile system comprises a center support pile (6), and the top ends of the center support piles (6) are abutted to the bottom ends of the middle positions of the arc-shaped center frame (3);
the bracket comprises a bracket support (1) arranged below the bracket, wherein the bracket support (1) comprises a bracket support pile (11) and a bracket support frame (12) which is abutted to the upper part of the bracket support pile (11), the top end of the bracket support frame (12) is abutted to the lower surface of the bracket, and the bracket support frame (12) is used as a side frame (2) after the bracket reaches preset strength;
bracket support frame (12) include chassis (121), reinforcing truss (123) have set firmly on chassis (121), reinforcing truss (123) top is provided with roof (122), reinforcing truss (123) are including fixing in fixed part (1231) of chassis (121) and dismantling detachable portion (1232) of connecting between chassis (121) and roof (122), will detachable portion (1232) dismantles the back and forms and hold the chamber, the tip of arc center rest (3) is fixed in and holds the chamber.
2. The main tower lower beam construction system with bracket serving as temporary support according to claim 1, wherein the main tower lower beam construction system is 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 underframe (121).
3. The main tower lower beam construction system with bracket serving as temporary support according to claim 1, wherein the main tower lower beam construction system is characterized in that: the top plate (122) is detachably connected to the reinforced truss (123).
4. The main tower lower beam construction system with bracket serving as temporary support according to claim 1, wherein the main tower lower beam construction system is characterized in that: the bracket supporting pile (11) is fixedly provided with an upper extension steel pipe column (5), and the upper extension steel pipe column (5) is abutted to the bottom end of the side frame (2).
5. The main tower lower beam construction system with bracket serving as temporary support according to claim 1, wherein the main tower lower beam construction system is characterized in that: 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 ends of the arc-shaped center frames (3).
6. The construction method of the main tower lower beam construction system with bracket serving as temporary support according to any one of claims 1 to 5, comprising the following steps:
s1, after the corbels reach preset strength, the connection between the corbel support frames (12) and the corbel support piles (11) is released, the corbel support frames (12) are used as side frames (2), and two ends of the arc-shaped center frame (3) are respectively connected with the two side frames (2);
s2, hoisting the side frame (2) and the arc-shaped center frame (3) to the top surface of the bracket, and fixing the side frame (2) to the top surface of the bracket;
and S3, erecting a center support pile (6), and enabling the top end of the center support pile (6) to be abutted to the bottom end of the middle position of the arc-shaped center 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 CN114086478A (en) | 2022-02-25 |
| CN114086478B true 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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| CN (1) | CN114086478B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| 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 |
-
2021
- 2021-11-25 CN CN202111415556.3A patent/CN114086478B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN114086478A (en) | 2022-02-25 |
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