CN212052362U - Bridge inner cavity lifting platform - Google Patents
Bridge inner cavity lifting platform Download PDFInfo
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- CN212052362U CN212052362U CN202020575568.7U CN202020575568U CN212052362U CN 212052362 U CN212052362 U CN 212052362U CN 202020575568 U CN202020575568 U CN 202020575568U CN 212052362 U CN212052362 U CN 212052362U
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Abstract
The utility model provides a bridge inner chamber promotes platform, including the body frame body, body frame body below is equipped with lower floor's construction platform, and lower floor's construction platform below is equipped with a plurality of platform crossbeams, platform crossbeam both ends are equipped with the regulation crossbeam, and the regulation crossbeam cup joints with the platform crossbeam, it is connected with the bridge inner chamber to adjust the crossbeam tip, be equipped with a plurality of slide rails on the construction platform of lower floor, body frame body both sides are equipped with the template, the template lower extreme is equipped with a plurality of sliders, the slider is established on the slide rail to make the both sides template slide at lower floor's construction platform, simple structure, convenient operation need not the piecemeal hoist and mount, the template slides and fixes the back, utilizes tower crane equipment whole lifting to hoist to next construction face, and the.
Description
Technical Field
The utility model belongs to the technical field of bridge inner chamber construction and specifically relates to a bridge inner chamber promotes platform is related to.
Background
In the construction of a bridge tower cavity, a platform generally adopts a full-paved springboard or a lifting hanger. The fully-paved springboard adopts the forms of arranging embedded parts on the inner cavity ground in advance, welding channel steel (or other steel materials) and the like, and has a simple structure. The lifting hanger type operation platform is the most common construction process for the construction of the inner cavity of a high tower column, generally 2-3 layers of platforms are arranged, each layer of springboard is fully paved, a rigid bracket is arranged on the upper section of poured tower column, a frame body is placed on the bracket and welded and fixed, and the frame body can be repeatedly used. However, in the case of high tower columns and bridge tower column inner cavity construction with large engineering quantity, the common defects of the high tower columns and the bridge tower column inner cavity construction are that the welding engineering quantity is large, the operation is complex, a large amount of welding work consumes time and labor, and the construction period cannot be guaranteed under the condition of long rainy season. When the tower column with the variable cross section is faced, the springboard needs to be cut continuously, materials cannot be recycled, and economic waste is caused.
At present in the construction of bridge inner chamber, use more be foretell pre-buried bracket formula promotion gallows, this structure has integral hoisting, and the operation is simple and easy, advantage such as the utilizability is strong, but its has following inconvenience: (1) the structure needs to weld and fix the frame body and the embedded bracket, but the operation space in the tower cavity is limited, the operation difficulty is high, the welding quality requirement is high, and the construction safety risk is high; (2) the structure needs to continuously cut or lengthen the gangway in the construction of the variable-section tower column, thereby causing the waste of materials. And (3) during construction in rainy season, the structure is low in utilization rate, and bracket welding can be performed only after measures are taken, so that the construction period is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a bridge inner chamber promotes platform solves the not enough problem of full bed springboard or promotion gallows technique.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a bridge inner cavity lifting platform comprises a main frame body, wherein a lower layer construction platform is arranged below the main frame body, a plurality of platform cross beams are arranged below the lower layer construction platform, adjusting cross beams are arranged at two ends of the platform cross beams and are sleeved with the platform cross beams, the end parts of the adjusting cross beams are connected with a bridge inner cavity, a plurality of slide rails are arranged on the lower layer construction platform, templates are arranged at two sides of the main frame body, a plurality of slide blocks are arranged at the lower ends of the templates, and the slide blocks are arranged on the slide rails;
so that the formworks on the two sides slide on the lower construction platform.
In the preferred scheme, the end part of the adjusting beam is connected with the inner cavity of the bridge through a fixing bolt.
In the preferred scheme, an embedded rod piece is arranged, a cone nut is arranged at the end part of the embedded rod piece, the cone nut and the embedded rod piece are arranged inside a wall body of an inner cavity of the bridge, and the fixing bolt penetrates through the end part of the embedded rod piece and is in threaded connection with the cone nut.
In the preferred scheme, the end part of the adjusting beam is provided with a connecting plate, and the fixing bolts are arranged at two ends of the connecting plate.
In the preferred scheme, a plurality of adjusting holes are formed in the adjusting beam, a plurality of through holes are formed in the platform beam, adjusting nuts are arranged on the platform beam, and the adjusting nuts penetrate through the platform beam and the adjusting holes to be used for fixing the adjusting beam.
In the preferred scheme, a fixing plate is arranged between the platform beam and the lower-layer construction platform, and the main frame body is connected with the fixing plate.
In the preferred scheme, a plurality of first openings are formed in the lower-layer construction platform and the fixing plate, a second opening is formed in one side of each first opening, the first openings are formed above the fixing bolts, and the second openings are formed above the adjusting nuts.
In the preferred scheme, the template is connected with the side wall of the inner cavity of the bridge through a plurality of embedded pull rods, a plurality of fixed trusses are arranged at the end parts of the embedded pull rods, and the fixed trusses abut against the end face of the template;
and a plurality of template lifting lugs are arranged at the upper end of the template.
In the preferred scheme, an upper construction platform is arranged above the main frame body, a platform lifting lug is arranged above the upper construction platform, and the platform lifting lug is connected with a crane through a steel wire rope;
and a side template is arranged on the main frame body.
The utility model provides a bridge inner chamber promotes platform, simple structure, convenient operation need not the piecemeal hoist and mount, and the template slides fixed back, utilizes tower crane equipment integral lifting hoist and mount to next construction face, and the cost is lower, and the simultaneous operation is swift, safe high-efficient. In addition, the length of the platform is adjusted by adjusting the position of the pin shaft, so that the tower body with the variable cross section is convenient to adapt, guarantee is provided for the construction period of the tower body, and the market application value is high.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a general block diagram of the present invention;
FIG. 2 is a front view structure diagram of the construction of the hoisting frame of the utility model;
FIG. 3 is a drawing of the sliding structure of the lift frame template of the present invention;
FIG. 4 is a left side view structure of the lifting frame of the present invention;
fig. 5 is the utility model discloses hoisting frame overlook the structure chart:
FIG. 6 is an enlarged structure view of the lower layer construction platform of the lifting frame of the present invention;
FIG. 7 is a front view of the cross beam and the adjusting cross beam of the present invention;
FIG. 8 is a side view of the cross member and the adjusting cross member of the present invention;
in the figure: a bridge 1; a crane (2); a bridge inner cavity 3; a main frame body 4; a platform beam 5; an adjusting nut 501; a fixing bolt 6; a lower construction platform 7; pre-burying a pull rod 8; a template 9; a template lifting lug 10; an upper construction platform 11; a wire rope 12; the adjusting beam 13; an adjustment hole 1301; a connecting plate 1302; pre-burying a rod piece 14; a taper nut 1401; a slide rail 15; a slider 16; a fixed truss 17; a platform lifting lug 18; a first opening 19; a side form 20; a second opening 21; and a fixing plate 22.
Detailed Description
Example 1
As shown in fig. 1-8, a bridge inner chamber promotes platform, including the body frame body 4, body frame body 4 below is equipped with lower floor's construction platform 7, and lower floor's construction platform 7 below is equipped with a plurality of platform crossbeams 5, platform crossbeam 5 both ends are equipped with adjusts crossbeam 13, adjusts crossbeam 13 and cup joints with platform crossbeam 5, it is connected with bridge inner chamber 3 to adjust crossbeam 13 tip, be equipped with a plurality of slide rails 15 on the construction platform 7 of lower floor, body frame body 4 both sides are equipped with template 9, template 9 lower extreme is equipped with a plurality of sliders 16, slider 16 is established on slide rail 15 to make both sides template 9 slide at lower floor's construction platform 7. From this structure, hoist and mount whole promotion platform to bridge inner chamber 3 in, when form 9 is torn open, will wholly remove to main frame body 4 direction through slide rail 15, hang to next position again and carry out construction once more, convenient operation need not the piecemeal hoist and mount, and the template slides to main frame body 4 one side and fixes the back, utilizes hoisting apparatus integral lifting hoist and mount to next construction position, and the operation is swift, safe high-efficient.
In a preferable scheme, the end part of the adjusting beam 13 is connected with the bridge inner cavity 3 through a fixing bolt 6. From this structure, adjusting beam 13 and carrying out fixed connection through fixing bolt 6 and bridge cavity 3's wall body, wherein carry out embedded nut in 3 interior walls of bridge cavity when making bridge 1 for use with fixing bolt 6 cooperation, fixed whole lift platform.
In a preferable scheme, an embedded rod member 14 is arranged, a taper nut 1401 is arranged at the end part of the embedded rod member 14, the taper nut 1401 and the embedded rod member 14 are arranged inside the wall body of the inner cavity 3 of the bridge, and the fixing bolt 6 penetrates through the end part of the embedded rod member 14 and is in threaded connection with the taper nut 1401. With the structure, the embedded rod piece 14 is embedded, the cone nut 1401 is welded at the end part of the embedded rod piece 14, and the cone nut 1401 is stable and has large bearing capacity.
In a preferred embodiment, a connecting plate 1302 is disposed at an end of the adjusting beam 13, and the fixing bolts 6 are disposed at two ends of the connecting plate 1302. With this structure, as shown in fig. 8, the fixing bolts 6 make the whole lifting platform more stable, and the taper nuts 1401 in the embedded bars 14 are used in cooperation with the fixing bolts 6.
In a preferable scheme, a plurality of adjusting holes 1301 are formed in the adjusting beam 13, a plurality of through holes are formed in the platform beam 5, an adjusting nut 501 is arranged on the platform beam 5, and the adjusting nut 501 penetrates through the platform beam 5 and the adjusting holes 1301 and is used for fixing the adjusting beam 13. With the structure, as shown in fig. 7-8, the adjusting beams 13 at the two ends of the sliding platform beam 5 adjust the whole length, and the platform beam 5 and the adjusting beams 13 are fixed by the adjusting nuts 501, so that the structure is suitable for bridge inner cavities 3 with various widths.
In the preferred scheme, a fixing plate 22 is arranged between the platform beam 5 and the lower construction platform 7, and the main frame body 4 is connected with the fixing plate 22. From this structure, fixed plate 22 is used for carrying out fixed connection with platform crossbeam 5 for carry out effectual fixed with platform crossbeam 5, fixed plate 22 is fixed the back, again with lower floor's construction platform 7 fixed to fixed plate 22, make lower floor's construction platform 7 more stable.
In a preferred embodiment, the lower construction platform 7 and the fixing plate 22 are provided with a plurality of first openings 19, one side of each first opening 19 is provided with a second opening 21, the first openings 19 are arranged above the fixing bolts 6, and the second openings 21 are arranged above the adjusting nuts 501. With this structure, as shown in fig. 4-5, the first opening 19 is used for installing and adjusting the fixing bolt 6 and the adjusting beam 13, and the second opening 21 is used for adjusting the adjusting nut 501 on the platform beam 5, so that the constructor can well connect the positions of the platform beam 5 and the adjusting beam 13 on the lower-layer construction platform 7.
In the preferred scheme, the template 9 is connected with the side wall of the inner cavity 3 of the bridge through a plurality of embedded pull rods 8, a plurality of fixed trusses 17 are arranged at the end parts of the embedded pull rods 8, the fixed trusses 17 abut against the end face of the template 9, and a plurality of template lifting lugs 10 are arranged at the upper end of the template 9. From this structure, pre-buried pull rod 8 is used for installing template 9, and fixed truss 17 is used for fixing template 9 on pre-buried pull rod 8, and wherein, pre-buried pull rod 8 advances to cut off through the cutting machine after the construction finishes.
In a preferable scheme, an upper construction platform 11 is arranged above the main frame body 4, a platform lifting lug 18 is arranged above the upper construction platform 11, the platform lifting lug 18 is connected with the crane 2 through a steel wire rope 12, and a side formwork 20 is arranged on the main frame body 4. From this structure, upper construction platform 11 is used for placing various debris, and wherein the side form 20 is placed upper construction platform 11 after demolising, and wherein the side form 20 is less, conveniently transports upper construction platform 11 and deposits.
Example 2
As described further with reference to embodiment 1, as shown in fig. 1 to 8, both ends of the main frame 4 are mounted on the fixing plates 22 and the upper construction platform 11, and the lower construction platform 7 is mounted on the fixing plates 22.
A plurality of platform beams 5 are mounted below the fixed plate 22, and the matched adjusting beams 13 are mounted on the platform beams 5.
A plurality of slide rails 15 are laid on the lower construction platform 7, a plurality of slide blocks 16 are installed below the formwork 9, the formwork 9 is arranged on the slide rails 15, and the lower surface of the upper construction platform 11 is hoisted through the formwork lifting lugs 10.
The side formworks 20 are placed on the upper construction platform 11 and the whole lifting device is assembled.
The hoisting device is hoisted at the construction position of the bridge inner cavity 3 by the crane 2, the adjusting beam 13 is abutted against the wall surface of the bridge inner cavity 3, and the fixing bolt 6 on the adjusting beam 13 is controlled by the crane 2 to be aligned with the conical nut 1401 on the embedded rod piece 14.
The adjusting nut 501 penetrates through the platform beam 5 and the adjusting beam 13 for fixing, and the fixing bolt 6 is locked to fix the whole lifting mechanism.
After fixing, the lifting ropes on the template lifting lugs 10 are unfastened, the sliding template 9 is arranged on the wall surface side of the inner cavity 3 of the bridge, and the template 9 is fixed on the embedded pull rod 8 through the fixed truss 17.
And (3) placing the side formwork 20 on the lower-layer construction platform 7 from the upper-layer construction platform 11, fixing the side formwork 20 on the wall surface on the side of the inner cavity 3 of the bridge by using the fixed truss 17, and recording pouring construction after the installation is finished.
When the concrete reaches a certain strength and has the condition of form removal, all the fixed trusses 17 are removed, and the side formworks 20 are firstly removed and then conveyed to the upper construction platform 11.
And then the template 9 slides to one side of the main frame body 4 through the slide rail 15, and the embedded pull rod 8 is sawed off or bent by a cutting machine.
And loosening the adjusting nut 501 and the fixing bolt 6 to enable the whole structure to be in a suspended state, and hoisting the whole structure to the next construction site to continue construction by adopting the scheme.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (10)
1. The utility model provides a bridge inner chamber promotes platform which characterized by: the main frame comprises a main frame body (4), wherein a lower-layer construction platform (7) is arranged below the main frame body (4), a plurality of platform cross beams (5) are arranged below the lower-layer construction platform (7), adjusting cross beams (13) are arranged at two ends of the platform cross beams (5), the adjusting cross beams (13) are sleeved with the platform cross beams (5), the end parts of the adjusting cross beams (13) are connected with a bridge inner cavity (3), a plurality of slide rails (15) are arranged on the lower-layer construction platform (7), templates (9) are arranged at two sides of the main frame body (4), a plurality of slide blocks (16) are arranged at the lower ends of the templates (9), and the slide blocks (16) are arranged;
so that the formworks (9) at the two sides can slide on the lower construction platform (7).
2. The bridge cavity lifting platform according to claim 1, wherein: the end part of the adjusting beam (13) is connected with the bridge inner cavity (3) through a fixing bolt (6).
3. The bridge cavity lifting platform of claim 2, wherein: the bridge is provided with an embedded rod piece (14), the end part of the embedded rod piece (14) is provided with a conical nut (1401), the conical nut (1401) and the embedded rod piece (14) are arranged inside a wall body of the inner cavity (3) of the bridge, and the fixing bolt (6) penetrates through the end part of the embedded rod piece (14) and is in threaded connection with the conical nut (1401).
4. The bridge cavity lifting platform of claim 2, wherein: the end part of the adjusting beam (13) is provided with a connecting plate (1302), and the fixing bolts (6) are arranged at two ends of the connecting plate (1302).
5. The bridge cavity lifting platform of claim 2, wherein: be equipped with a plurality of regulation holes (1301) on regulation crossbeam (13), establish on platform crossbeam (5) with a plurality of through-holes, be equipped with adjusting nut (501) on platform crossbeam (5), adjusting nut (501) pass platform crossbeam (5) and regulation hole (1301) and are used for fixed regulation crossbeam (13).
6. The bridge cavity lifting platform according to claim 1, wherein: a fixing plate (22) is arranged between the platform beam (5) and the lower construction platform (7), and the main frame body (4) is connected with the fixing plate (22).
7. The bridge cavity lifting platform according to claim 6, wherein: lower floor construction platform (7) and fixed plate (22) go up to open and have a plurality of first openings (19), and first opening (19) one side is equipped with second opening (21), establish the top at fixing bolt (6) in first opening (19), establish the top at adjusting nut (501) in second opening (21).
8. The bridge cavity lifting platform according to claim 1, wherein: the template (9) is connected with the side wall of the bridge inner cavity (3) through a plurality of embedded pull rods (8), a plurality of fixed trusses (17) are arranged at the end parts of the embedded pull rods (8), and the fixed trusses (17) are abutted against the end face of the template (9);
and a plurality of template lifting lugs (10) are arranged at the upper end of the template (9).
9. The bridge cavity lifting platform according to claim 1, wherein: an upper construction platform (11) is arranged above the main frame body (4), a platform lifting lug (18) is arranged above the upper construction platform (11), and the platform lifting lug (18) is connected with the crane (2) through a steel wire rope (12).
10. The bridge cavity lifting platform according to claim 1, wherein: and a side formwork (20) is arranged on the main frame body (4).
Priority Applications (1)
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CN202020575568.7U CN212052362U (en) | 2020-04-17 | 2020-04-17 | Bridge inner cavity lifting platform |
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CN202020575568.7U CN212052362U (en) | 2020-04-17 | 2020-04-17 | Bridge inner cavity lifting platform |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111485495A (en) * | 2020-04-17 | 2020-08-04 | 中交第二航务工程局有限公司 | Bridge inner cavity lifting platform and construction method thereof |
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2020
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111485495A (en) * | 2020-04-17 | 2020-08-04 | 中交第二航务工程局有限公司 | Bridge inner cavity lifting platform and construction method thereof |
CN111485495B (en) * | 2020-04-17 | 2021-12-14 | 中交第二航务工程局有限公司 | Bridge inner cavity lifting platform and construction method thereof |
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