CN112962471A - Assembled horizontal limiting sand box supporting device and construction method thereof - Google Patents
Assembled horizontal limiting sand box supporting device and construction method thereof Download PDFInfo
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- CN112962471A CN112962471A CN202110341317.1A CN202110341317A CN112962471A CN 112962471 A CN112962471 A CN 112962471A CN 202110341317 A CN202110341317 A CN 202110341317A CN 112962471 A CN112962471 A CN 112962471A
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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
- E01D21/10—Cantilevered erection
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses an assembled horizontal limiting sand box supporting device which mainly comprises a sand box upper structure, a sand box, a head plate, a limiting bolt and a steel pipe stand column, wherein the sand box upper structure is padded at the bottom of a large-span suspension casting box beam, the bottom of a first limiting plate is nested at the outer side of the sand box to horizontally limit the upper end of the sand box, the bottom of the sand box is located on the head plate, two identical second limiting plates are welded at the upper end of the head plate, the second limiting plates are arranged at the outer side of the sand box to horizontally limit the lower end of the sand box, a socket circular steel pipe is welded at the center of the bottom of the head plate, and the excircle of the socket circular steel pipe is nested in the inner circle of the steel pipe stand column. The invention adopts the construction of a few supporting points and a sand box supporting system, can effectively limit the horizontal displacement generated at the upper end and the lower end of the sand box and the related nodes of the supporting system, balances the larger horizontal component force generated by the cast-in-place structure due to larger bottom slope rate or other factors, and enhances the safety, the integrity and the stability of the system.
Description
Technical Field
The invention relates to the technical field of construction of an assembled sand box, in particular to an assembled horizontal limiting sand box supporting device and a construction method thereof.
Background
With the development of the structural design technology in China, concrete structures with large slopes on the bottom surface gradually appear, such as 0# block of a large-span cantilever box girder, a certain horizontal component force is generated on a supporting system of the concrete structures, in order to facilitate the removal of a formwork on a bracket with few pivots, the design of a sand box is often increased, the horizontal component force generated in the concrete pouring process of the structure is counteracted only by the friction force between an upper steel plate and a lower steel plate of the sand box and an upper supporting structure and a lower steel upright post head plate, and when the structural slope rate is too large or the horizontal component force is too large due to other factors such as wind load and the like, the supporting system is easy to overturn.
Disclosure of Invention
In order to overcome the technical defect that the support system is easy to overturn due to insufficient horizontal limiting of the sand box in the prior art, the invention provides the assembly type horizontal limiting sand box support device.
The invention realizes the purpose by the following technical scheme, an assembly type horizontal limiting sand box supporting device comprises a sand box upper structure, a sand box, a head plate, a limiting bolt and a steel pipe upright post, wherein the sand box upper structure is padded at the bottom of a large-span suspension casting box beam, the bottom of the sand box upper structure is provided with the limiting structure, the limiting structure is formed by splicing a first limiting plate with the same left half width and right half width, the limiting structure is connected with the sand box upper structure by adopting a connecting bolt, the bottom of the first limiting plate is nested at the outer side of the sand box and horizontally limits the upper end of the sand box, the bottom of the sand box is located on the head plate, the upper end of the head plate is welded with two second limiting plates with the same width, the second limiting plate is arranged at the outer side of the sand box and horizontally limits the lower end of the sand box, a socket round steel pipe is welded at the center position of the bottom of, the excircle of socket joint circular steel pipe nests in the interior circle of steel pipe stand, is provided with the through-hole on the circumferencial direction of steel pipe stand, and spacing bolt passes the through-hole on the steel pipe stand and inserts in the bolt sleeve, and the vertical height to the large-span box roof beam that waters of hanging is spacing.
According to the assembled horizontal limiting sand box supporting device, the size of the outer circle of the socket circular steel tube is 1-3 mm smaller than the size of the inner circle of the steel tube stand column.
According to the assembled horizontal limiting sand box supporting device, the arrangement position of the bolt sleeve on the socket circular steel pipe corresponds to the position of the through hole formed in the steel pipe stand column in the vertical direction.
A construction method of an assembly type horizontal limiting sand box supporting device mainly comprises the following steps of:
s1: designing a related structure of the head plate according to the steel pipe stand column with few pivots, wherein the outer diameter of a socket circular steel pipe at the center of the bottom of the head plate is smaller than the inner diameter of the steel pipe stand column, the bolt sleeves and the reinforcing rib plates are uniformly arranged in the direction perpendicular to the center line of the socket circular steel pipe, the head plate is welded at the upper part to form a whole, and the specific position of the second limiting plate is customized according to the size of a sand box;
s2: after the construction of the steel pipe upright post and the parallel connection supporting system is finished, the related structure of the head plate is installed inside the steel pipe upright post, the bolt sleeve corresponds to the through hole formed in the steel pipe upright post in position during installation, and a limiting bolt is installed for fixing;
s3: installing a sand box in the middle of a second limiting plate at the upper end of the customized head plate;
s4: the installation of structure above the sand box is accomplished, and half a width of left and right sides's first limiting plate concatenation is accomplished, adopts connecting bolt to pass through the horizontal displacement of reservation bolt hole connection, restriction sand box with limit structure and sand box top structure.
Generally, compared with the prior art, the technical scheme of the invention can achieve the following beneficial effects:
1. the assembled horizontal limiting sand box supporting device can effectively limit horizontal displacement generated at the upper end and the lower end of a sand box and related nodes of a supporting system, balance large horizontal component force generated by a cast-in-place structure due to large bottom slope rate or other factors, and enhance the safety, integrity and stability of the system;
2. the invention has the advantages that each component and related parts are widely used, simple and easy to obtain in engineering construction, the requirement on the construction process is lower, the manufacturing cost is low, components with different types and specifications can be produced according to the actual requirements on site to meet the requirement of the engineering in batch, the installation and the disassembly are convenient and fast, the use is flexible, and the construction standardization and the standardization degree are improved;
3. the construction method adopts the assembly type construction, can meet the requirement of internal rotation use of the steel pipe stand column with few pivots and the sand box in the same type, reduces material damage and waste in the traditional welding construction process, improves the material utilization rate, reduces the air welding operation time, and ensures the construction quality and safety to the maximum extent.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a front view of an assembled horizontal stop flask support of the present invention;
FIG. 2 is a side view of an assembled horizontal stop flask support of the present invention;
in the figure: 1-large-span suspension casting box girder, 2-structure above the sand box, 3-connecting bolt, 4-first limiting plate, 5-sand box, 6-second limiting plate, 7-head plate, 8-reinforcing rib plate, 9-limiting bolt, 10-bolt sleeve, 11-socket circular steel tube and 12-steel tube upright post.
Detailed Description
As shown in figures 1 and 2, the assembled horizontal limiting sand box supporting device comprises a sand box upper structure 2, a sand box 5, a head plate 7, a limiting bolt 9 and a steel pipe upright post 12, wherein the sand box upper structure 2 is padded at the bottom of a large-span suspension casting box beam 1, the bottom of the sand box upper structure is provided with the limiting structure, the limiting structure is formed by splicing a left half width and a right half width of first limiting plates 4 which are completely identical, the connecting bolt 3 is connected with the sand box upper structure 2, the bottom of the first limiting plate 4 is nested at the outer side of the sand box 5 to horizontally limit the upper end of the sand box, the bottom of the sand box 5 is located on the head plate 7, the upper end of the head plate 7 is welded with two completely identical second limiting plates 6, the second limiting plates 6 are arranged at the outer side of the sand box 5 to horizontally limit the lower end of the sand box, a socket circular steel pipe 11 is welded at the center, four reinforcing rib plates 8 are welded around the large-span suspension casting box girder 1, a bolt sleeve 10 is arranged in the circumferential direction of the socket circular steel pipe 11, the outer circle of the socket circular steel pipe 11 is nested in the inner circle of the steel pipe upright post 12, a through hole is formed in the circumferential direction of the steel pipe upright post 12, and a limiting bolt 9 penetrates through the through hole in the steel pipe upright post 12 and is inserted into the bolt sleeve 10 to limit the vertical height of the large-span suspension casting box girder 1.
The size of the outer circle of the socket circular steel tube 11 is 1mm-3mm smaller than the size of the inner circle of the steel tube upright post 12, and the arrangement position of the bolt sleeve 10 on the socket circular steel tube 11 corresponds to the position of the through hole formed in the steel tube upright post 12 in the vertical direction.
The invention discloses an assembled horizontal limiting sand box supporting device, which mainly completes horizontal limiting of a sand box in the specific construction process through the following steps:
the method comprises the following steps: the related structure of the end plate 7 is designed according to the steel tube upright post 12 with few pivots, the outer diameter of a socket circular steel tube 11 in the center of the bottom of the end plate 7 is smaller than the inner diameter of the steel tube upright post 12, a bolt sleeve 10 and a reinforcing rib plate 8 are uniformly arranged in the direction perpendicular to the center line of the socket circular steel tube 11, the end plate 7 is welded at the upper part to form a whole, and the specific position of the second limiting plate 6 is customized according to the size of the sand box 5;
step two: after the construction of the steel pipe upright post 12 and the parallel connection supporting system is finished, the related structure of the head plate 7 is installed inside the steel pipe upright post 12, during installation, the bolt sleeve 10 corresponds to a through hole formed in the steel pipe upright post 12, and the limiting bolt 9 is installed for fixing;
step three: installing a sand box 5 in the middle of a second limiting plate 6 at the upper end of the customized head plate;
step four: the installation of structure 2 above the sand box is accomplished, and the first limiting plate 4 concatenation of half a width of cloth about will be accomplished, adopts connecting bolt 3 to pass through the reservation bolt hole with limit structure and structure 2 above the sand box and is connected, restriction sand box 5's horizontal displacement.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. The assembled horizontal limiting sand box supporting device is characterized by comprising a sand box upper structure (2), a sand box (5), a head plate (7), a limiting bolt (9) and a steel pipe upright post (12), wherein the sand box upper structure (2) is padded at the bottom of a large-span cantilever casting box beam (1), the bottom of the sand box upper structure is provided with the limiting structure, the limiting structure is formed by splicing a first limiting plate (4) which is identical in left and right half width, the connecting bolt (3) is connected with the sand box upper structure (2), the bottom of the first limiting plate (4) is embedded in the sand box (5) to horizontally limit the upper end of the sand box (5), the bottom of the sand box (5) is located on the head plate (7), the upper end of the head plate (7) is welded with two identical second limiting plates (6), and the second limiting plates are arranged outside the sand box (5), the bottom of sand box (5) carries out horizontal spacing, the central point of head plate (7) bottom puts the welding and has socket joint circular steel pipe (11), has four deep floor (8) around the welding, the circumferencial direction of socket joint circular steel pipe (11) is provided with bolt sleeve (10), the excircle nestification of socket joint circular steel pipe (11) is in the interior circle of steel pipe stand (12), be provided with the through-hole on the circumferencial direction of steel pipe stand (12), through-hole that spacing bolt (9) passed on steel pipe stand (12) inserts in bolt sleeve (10).
2. The supporting device for the fabricated horizontal-limiting sand box according to claim 1, wherein the outer circle dimension of the socket circular steel tube (11) is 1mm-3mm smaller than the inner circle dimension of the steel tube upright post (12).
3. The supporting device for the fabricated horizontal-position-limiting sand box according to claim 2, wherein the bolt sleeves (10) on the socket circular steel pipes (11) are arranged at positions corresponding to the positions of the through holes formed on the steel pipe upright posts (12) in the vertical direction.
4. A construction method of the fabricated horizontal-position-limiting flask supporting device according to claim 1, which comprises the following steps:
s1: the related structure of the end plate (7) is designed according to the steel tube upright post (12) with few pivots, the outer diameter of a socket circular steel tube (11) at the center of the bottom of the end plate (7) is smaller than the inner diameter of the steel tube upright post (12), a bolt sleeve (10) and a reinforcing rib plate (8) are uniformly arranged in the direction perpendicular to the center line of the socket circular steel tube (11), the end plate (7) is welded at the upper part to form a whole, and the specific position of the second limiting plate (6) is customized according to the size of the sand box (5);
s2: after the construction of the steel pipe upright post (12) and the parallel connection supporting system is finished, installing the related structure of the head plate (7) into the steel pipe upright post (12), and during installation, paying attention to the fact that the bolt sleeve (10) corresponds to the through hole formed in the steel pipe upright post (12) in position, and installing a limiting bolt (9) for fixing;
s3: installing a sand box (5) in the middle of a second limiting plate (6) at the upper end of the customized head plate;
s4: the installation of the sand box top structure (2) is completed, the left half width and the right half width of the first limiting plate (4) are spliced, the limiting structure and the sand box top structure (2) are connected through the reserved bolt holes by the connecting bolts (3), and the horizontal displacement of the sand box (5) is limited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110341317.1A CN112962471A (en) | 2021-03-30 | 2021-03-30 | Assembled horizontal limiting sand box supporting device and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110341317.1A CN112962471A (en) | 2021-03-30 | 2021-03-30 | Assembled horizontal limiting sand box supporting device and construction method thereof |
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| CN112962471A true CN112962471A (en) | 2021-06-15 |
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| CN202110341317.1A Pending CN112962471A (en) | 2021-03-30 | 2021-03-30 | Assembled horizontal limiting sand box supporting device and construction method thereof |
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| CN108868192A (en) * | 2018-07-13 | 2018-11-23 | 中铁六局集团有限公司 | Short distance overcrossing railway both wired transom pier overarm brace Demolition Construction engineering method |
| CN109505270A (en) * | 2019-01-14 | 2019-03-22 | 兰州理工大学 | A kind of limit reinforcement system of laminated rubber bearing bridge |
| CN208981162U (en) * | 2018-09-21 | 2019-06-14 | 中铁西南科学研究院有限公司 | Sandbox depot fat pit Rotary ball hinge is exempted from a kind of big bending resistance |
| CN209082510U (en) * | 2018-08-09 | 2019-07-09 | 江苏宇翔建设发展集团有限公司 | Mansion foundation pit pillar construction |
| CN110130226A (en) * | 2019-05-08 | 2019-08-16 | 中铁六局集团有限公司 | The construction method of the positioning of bowstring arch bridge rib-hoisting and absolute altitude control |
| CN110485258A (en) * | 2019-06-25 | 2019-11-22 | 中交第三航务工程勘察设计院有限公司 | A kind of full assembling type steel structure access bridge and its construction method |
| CN211057626U (en) * | 2019-09-23 | 2020-07-21 | 北京市市政四建设工程有限责任公司 | Capping beam fine adjustment system applying prefabricated capping beam construction |
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2021
- 2021-03-30 CN CN202110341317.1A patent/CN112962471A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5816562A (en) * | 1996-10-11 | 1998-10-06 | Symons Corporation | Sand jack apparatus |
| CN203222732U (en) * | 2013-01-24 | 2013-10-02 | 中交二公局第二工程有限公司 | Top sand cylinder group structure of steel pipe support frame with super tonnage load-bearing capacity |
| CN204780568U (en) * | 2015-07-10 | 2015-11-18 | 中铁第五勘察设计院集团有限公司 | High water level, fast velocity of flow arched bridge binder buttress system |
| CN206359898U (en) * | 2016-11-30 | 2017-07-28 | 天津城建大学 | A kind of Bridge Construction support is with unloading frame sandbox mounting structure |
| CN208055884U (en) * | 2018-03-17 | 2018-11-06 | 中交路桥建设有限公司 | A kind of filling sand cylinder overturn-preventing structure being arranged on bracket |
| CN108868192A (en) * | 2018-07-13 | 2018-11-23 | 中铁六局集团有限公司 | Short distance overcrossing railway both wired transom pier overarm brace Demolition Construction engineering method |
| CN209082510U (en) * | 2018-08-09 | 2019-07-09 | 江苏宇翔建设发展集团有限公司 | Mansion foundation pit pillar construction |
| CN208981162U (en) * | 2018-09-21 | 2019-06-14 | 中铁西南科学研究院有限公司 | Sandbox depot fat pit Rotary ball hinge is exempted from a kind of big bending resistance |
| CN109505270A (en) * | 2019-01-14 | 2019-03-22 | 兰州理工大学 | A kind of limit reinforcement system of laminated rubber bearing bridge |
| CN110130226A (en) * | 2019-05-08 | 2019-08-16 | 中铁六局集团有限公司 | The construction method of the positioning of bowstring arch bridge rib-hoisting and absolute altitude control |
| CN110485258A (en) * | 2019-06-25 | 2019-11-22 | 中交第三航务工程勘察设计院有限公司 | A kind of full assembling type steel structure access bridge and its construction method |
| CN211057626U (en) * | 2019-09-23 | 2020-07-21 | 北京市市政四建设工程有限责任公司 | Capping beam fine adjustment system applying prefabricated capping beam construction |
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Application publication date: 20210615 |