CN211171632U - Continuous rigid frame bridge side-span cast-in-place section and closure section are pour and are used gallows - Google Patents
Continuous rigid frame bridge side-span cast-in-place section and closure section are pour and are used gallows Download PDFInfo
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- CN211171632U CN211171632U CN201921316287.3U CN201921316287U CN211171632U CN 211171632 U CN211171632 U CN 211171632U CN 201921316287 U CN201921316287 U CN 201921316287U CN 211171632 U CN211171632 U CN 211171632U
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Abstract
The utility model provides a cast-in-place section of continuous rigid frame bridge side span and close up the section and pour and use gallows, the bent cap braced system is located on the supplementary mound bent cap and is connected with supplementary mound bent cap, roof beam braced system locates to hang the basket and pours on the completion roof beam section and pour with hanging the basket and accomplish the roof beam section and be connected, suspension system is connected with bent cap braced system, suspension system is connected with roof beam braced system, main jib and suspension system are connected, main jib and bottom girder are connected, the bottom girder is located and is hung the basket and accomplish beam section below. Through the scheme, the auxiliary beam which is poured and the hanging basket are poured to be used as the stress needed by the construction section, the suspension system is used as the bearing of the construction section pouring system, the bottom stress structure of the pouring system is formed by the suspender and the bottom girder, unilateral side span and closure construction are realized, and through the hanging bracket system with simple structure, the defects of the traditional floor frame and the bracket are overcome, and high-efficiency and low-cost construction is realized.
Description
Technical Field
The utility model relates to a bridge construction field especially relates to a cast-in-place section of continuous rigid frame bridge side span and fold the section and pour and use the gallows.
Background
With the progress of bridge construction technology, the span of the prestressed concrete continuous rigid frame bridge is larger and larger, and the length of the side span cast-in-place section and the construction difficulty are larger and larger.
The cast-in-place section of present side span adopts floor stand or bracket with the support of closing up the section more, receives construction site restrictions such as mountain area, and the supplementary mound of side span is mostly high mound, and if the cast-in-place section length of side span is too big, ordinary floor stand and ordinary bracket can't be implemented. If the work is really tight, the construction pressure is huge.
When the pier stud of the auxiliary pier of the continuous rigid frame bridge is higher, the implementation of the floor stand is not economical or has no floor stand implementation condition; or the length of the side span cast-in-place section is too long, if the cast-in-place section is implemented by adopting the bracket, the bottom of the bracket needs to be supported on the pier stud, and the construction quality of the pier stud is influenced or the structure of the existing pier stud is damaged due to eccentric compression.
In view of the above, a hanger for casting a side span cast-in-place section and a closure section of a continuous rigid frame bridge is provided to solve the above problems.
Disclosure of Invention
The utility model aims at providing a continuous rigid frame bridge side span cast-in-place section and a gallows for folding section pouring, which is assembled by utilizing a side span auxiliary pier capping beam and a poured continuous rigid frame bridge section as the stress supporting point of the gallows, and utilizes the gallows to carry out side span cast-in-place section and folding concrete pouring; the hanging bracket is convenient and quick to assemble and disassemble, and construction materials are saved, so that the technical problem in the background technology is solved.
The utility model discloses a technique be:
a continuous rigid frame bridge side span cast-in-place section and closure section hanging bracket for pouring comprises a cover beam supporting system, a beam top supporting system, a suspension system, a main hanging rod and a bottom main beam, wherein the cover beam supporting system is arranged on an auxiliary pier cover beam and connected with the auxiliary pier cover beam, the beam top supporting system is arranged on a hanging basket pouring completion beam section and connected with the hanging basket pouring completion beam section, the suspension system is connected with the cover beam supporting system, the suspension system is connected with the beam top supporting system, the main hanging rod is connected with the suspension system, the main hanging rod is connected with the bottom main beam, and the bottom main beam is arranged below the hanging basket pouring completion beam section.
Through the scheme, the auxiliary beam and the hanging basket which are poured are arranged between the stress required by the beam section as the construction section, the supporting systems are respectively arranged in the front and back directions, the suspension system is adopted as the bearing of the construction section pouring system, the suspender and the bottom girder are utilized to form the bottom stress structure of the pouring system, the unilateral side span and the closure construction are realized, the hanger system with simple structure is adopted, the defects of the traditional floor frame and the bracket are overcome, and the high-efficiency and low-cost construction is realized.
The scheme is further optimized, the system further comprises a cover beam embedded part and a beam top embedded part, the cover beam supporting system is connected with the auxiliary pier cover beam through the cover beam embedded part, and the beam top supporting system is connected with the hanging basket through the beam top embedded part to complete beam section pouring. The two supporting systems can be conveniently installed through the embedded parts, and the embedded parts do not bear main stress and are used for positioning and connecting the supporting systems.
As a further optimization of the scheme, the suspension system is arranged on the top of the cover beam supporting system, and the suspension system is arranged on the top of the beam top supporting system. The suspension system is arranged at the top of the two support systems, so that the connection requirement with the support systems is simplified, and the force transmission is more reasonable.
According to the scheme, the system further comprises an auxiliary suspender, one end of the auxiliary suspender is connected with the hanging basket pouring completion beam section, and the other end of the auxiliary suspender is connected with a bottom main beam. The auxiliary suspension rod is favorable for improving the integral bearing capacity of the suspension bracket, and is more stable during construction of the closure segment.
As the further optimization of scheme, bent cap braced system includes first support column, second support column and a supporting beam, and a supporting beam locates the top of first support column and second support column, still includes reinforcing structure, and reinforcing structure locates between first support column and the second support column. The stress of the double-limb support structure is more stable, the integral stability of the hanging bracket is stronger, and the fault tolerance rate of the precision error of the construction is higher.
According to the scheme, the suspension system comprises a frame beam body and a top main beam, the top main beam is arranged at the top of the frame beam body, and the frame beam body is arranged at the tops of the cover beam supporting system and the beam top supporting system. The frame girder body plays the main effect of bearing, utilizes the top girder, sets up a plurality of main jibs on the cross section of bridge, realizes the support of a plurality of stress points.
As the further optimization of the scheme, the length direction of the frame beam body is consistent with that of the bridge, and the frame beam body is perpendicular to the top main beam. The suspension system forms a horizontal and vertical frame type stress structure, is designed symmetrically with the bridge and is stable in stress.
Compared with the prior art, the beneficial effects of the utility model are that:
through the scheme, the auxiliary beam and the hanging basket which are poured are arranged between the stress required by the beam section as the construction section, the supporting systems are respectively arranged in the front and back directions, the suspension system is adopted as the bearing of the construction section pouring system, the suspender and the bottom girder are utilized to form the bottom stress structure of the pouring system, the unilateral side span and the closure construction are realized, the hanger system with simple structure is adopted, the defects of the traditional floor frame and the bracket are overcome, and the high-efficiency and low-cost construction is realized.
The two supporting systems can be conveniently installed through the embedded parts, and the embedded parts do not bear main stress and are used for positioning and connecting the supporting systems. This gallows does not have the influence and need not at key position pre-buried constructional element such as pier stud to permanent structure, does not influence the durability of structure.
Drawings
Fig. 1 is one of the schematic structural diagrams of a hanger for casting a side span cast-in-place section and a closure section of a continuous rigid frame bridge provided by the present invention;
fig. 2 is a second schematic structural view of a hanger for casting a side span cast-in-place section and a closure section of a continuous rigid frame bridge according to the present invention;
fig. 3 is a third schematic structural view of a hanger for casting a side span cast-in-place section and a closure section of a continuous rigid frame bridge provided by the present invention;
fig. 4 is the utility model provides a pair of cast-in-place section of continuous rigid frame bridge side span and fold up section and pour capping beam braced system with gallows's schematic structure.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1:
referring to the attached drawings 1-4, the continuous rigid frame bridge side span cast-in-place section and closure section casting hanger comprises a capping beam supporting system 1, a beam top supporting system 2, a suspension system 3, a main suspension rod 4 and a bottom main beam 5, wherein the capping beam supporting system 1 is arranged on an auxiliary pier capping beam 7 and connected with the auxiliary pier capping beam 7, the beam top supporting system 2 is arranged on a hanging basket casting finished beam section 8 and connected with the hanging basket casting finished beam section 8, the suspension system 3 is connected with the capping beam supporting system 1, the suspension system 3 is connected with the beam top supporting system 2, the main suspension rod 4 is connected with the suspension system 3, the main suspension rod 4 is connected with the bottom main beam 5, and the bottom main beam 5 is arranged below the hanging basket casting finished beam section 8.
In continuous rigid frame bridge work progress, the construction of sidespan 9 generally need adopt cast-in-place mode to be under construction, be unilateral asymmetric construction based on sidespan 9, traditional built-in fitting connection bracket's mode can't use basically, because the bracket atress produces great unilateral horizontal reaction force to supplementary mound 6 pier stud, cause the damage to supplementary mound 6 pier stud easily, lead to the quality of supplementary mound 6 pier stud to go wrong even, consequently, traditional 9 construction of sidespan is mostly adopted the frame that falls to be under construction. The landing frame needs higher manual work, material and time cost under the higher circumstances to supplementary mound 6 pier stud, and the price/performance ratio is extremely low, and another kind of construction method that utilizes the precast beam body to assemble needs the multiple forming die of design, still needs more lifting device, at the higher circumstances of supplementary mound 6 pier stud, and the construction degree of difficulty is also very big, has the potential safety hazard.
Meanwhile, under the condition that the lengths of the side span 9 and the folding section 10 are larger than 10m, a bracket is arranged under the pouring system, the whole size of the bracket is increased, the larger the bracket is, the larger the moment of the pouring system to the pier stud of the auxiliary pier 6 is, the unsafe condition is caused after the embedded part is arranged on the pier stud or the bracket is erected on the periphery of the pier stud, and the great influence is caused on the quality of the pier stud. Therefore, the cast-in-place construction of the side span 9 and the closure segment 10 with large length requires great labor, material and time costs.
Two main problems to the traditional problem, cost and to the influence of pier shaft, the utility model discloses a solve above-mentioned problem to a gallows, specifically do, to protecting the pier shaft, through directly setting up braced system on bent cap and roof beam top, as bearing structure, all be vertical downwards to the effort of pier stud and roof beam body, can not produce any transverse force, play the effect of protecting pier shaft and roof beam body.
Moreover, through two braced systems and suspension system 3, formed the structure that can provide the concreting system and put forth effort, utilized main jib 4 to realize the connection of concreting system, formed like portal crane structure, for the concreting system provides the space of placing, can not produce extra influence again, structural extremely simple does not need complicated design and does not need a large amount of construction materials, has obtained obvious improvement in the construction degree of difficulty and material cost.
To traditional floor stand and bracket, all adopt the bearing of shape and last, this gallows adopts brand-new construction thinking, adopts top-down's bearing, has successfully overcome above-mentioned problem, and in the construction, the post jib passes casting system, has arranged the PVC pipe in the jib periphery, and the construction is accomplished the back, and main jib 4 can be taken out from without the obstacle, and it can mainly to manage at PVC and annotate the concrete shutoff.
Through the scheme, the auxiliary beam and the hanging basket which are poured are used as stress between the beam sections 8 which are required by the construction section, the supporting systems are respectively arranged in the front and back directions, the suspension system 3 is used as bearing of the construction section pouring system, the bottom stress structure of the pouring system is formed by the suspender and the bottom main beam 5, unilateral side span 9 and closure construction are realized, the defects of a traditional floor frame and a bracket are overcome through the hanging bracket system with a simple structure, and efficient and low-cost construction is realized.
Bent cap braced system 1, roof beam braced system 2 and suspension system 3 form the portal crane structure, can directly place at bent cap and roof beam can, in order to realize safer construction environment, the safety of this gallows when one's body has, in this embodiment, still include bent cap built-in fitting and roof beam built-in fitting, bent cap braced system 1 is connected with supplementary mound bent cap 7 through the bent cap built-in fitting, roof beam braced system 2 pours through roof beam built-in fitting and string basket and accomplishes beam section 8 and be connected. The two supporting systems can be conveniently installed through the embedded parts, and the embedded parts do not bear main stress and are used for positioning and connecting the supporting systems. The setting plays the effect of fixing two braced systems at the top surface built-in fitting, is favorable to setting up suspension system 3, and when this gallows in-service use, not play main atress, at traditional bracket, the built-in fitting often is main atress structure, sets up and damages the pier shaft easily in pier shaft side.
Example 2:
referring to fig. 1 to 4, a difference between the present embodiment and embodiment 1 is that the present embodiment optimizes the structures of the two supporting systems and the suspension system 3 to obtain a better use effect.
In this embodiment, the suspension system 3 is provided on top of the capping beam support system 1 and the suspension system 3 is provided on top of the roof support system 2. The suspension system 3 is arranged on the top of the two support systems, so that the connection requirement with the support systems is simplified, and the force transmission is more reasonable. The suspension system 3 is arranged at the top like building block erection, so that the transmission of the whole physical power is more useful, and in the bearing of the pouring system, only the vertical downward gravity needs to be offset, so that the building block type erection of the suspension bracket does not have the problem of insufficient stability, and the connection structure can be simplified.
As the further optimization of the scheme, the system also comprises an auxiliary suspender 41, one end of the auxiliary suspender 41 is connected with the beam section 8 which is poured by the hanging basket, and the other end of the auxiliary suspender is connected with the bottom main beam 5. The auxiliary boom 41 is advantageous in improving the overall load-bearing capacity of the hanger and is more stable during construction of the closure 10. When the closure segment 10 is poured, the side span 9 is formed and is in contact with the auxiliary pier capping beam 7, and the auxiliary suspender 41 is needed to assist construction of the closure segment 10, so that the phenomenon that the gravity center changes to cause unilateral stress of the hanger is avoided.
As a further optimization of the scheme, the capping beam supporting system 1 comprises a first supporting column 11, a second supporting column 12 and a supporting beam 13, wherein the supporting beam 13 is arranged on the top of the first supporting column 11 and the top of the second supporting column 12, and the capping beam supporting system further comprises a reinforcing structure 14, and the reinforcing structure 14 is arranged between the first supporting column 11 and the second supporting column 12. The stress of the double-limb support structure is more stable, the integral stability of the hanging bracket is stronger, and the fault tolerance rate of the precision error of the construction is higher. The beam top supporting system 2 adopts a structure identical to that of the cover beam supporting system 1, two symmetrically arranged double-limb supporting columns are adopted to form a stable supporting structure, the reinforcing structure 14 can connect the two supporting columns together, the overall stability is obviously improved, and the supporting beam 13 improves the placing condition for the suspension system 3.
As a further optimization of the scheme, the suspension system 3 comprises a frame beam body and a top main beam 51, wherein the top main beam 51 is arranged at the top of the frame beam body, and the frame beam body is arranged at the top of the cover beam supporting system 1 and the beam top supporting system 2. The frame girder body plays a main bearing role, and a plurality of main suspenders 4 are arranged on the cross section of the bridge by utilizing the top main girder 51, so that the support of a plurality of stress points is realized. The frame girder body realizes long distance's needs of bearing, adopts a plurality of crisscross shaped steel structures of violently indulging to constitute, like the structure of the davit of tower crane, can bear the bearing that the construction needs, at the cross section direction that leads to the strength, provides the atress structure for a plurality of jibs through top girder 51.
As further optimization of the scheme, the length direction of the frame beam body is consistent with that of the bridge, and the frame beam body is perpendicular to the top main beam 51. The suspension system 3 forms a horizontal and vertical frame type stress structure, is designed symmetrically with the bridge and is stable in stress.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A hanging bracket for pouring a side span cast-in-place section and a closure section of a continuous rigid frame bridge is characterized by comprising a bent cap supporting system (1), a beam top supporting system (2), a suspension system (3), a main suspender (4) and a bottom main beam (5), the capping beam supporting system (1) is arranged on the auxiliary pier capping beam (7) and connected with the auxiliary pier capping beam (7), the beam top supporting system (2) is arranged on the hanging basket pouring completion beam section (8) and is connected with the hanging basket pouring completion beam section (8), the suspension system (3) is connected with the bent cap supporting system (1), the suspension system (3) is connected with the beam top supporting system (2), the main suspender (4) is connected with the suspension system (3), the main suspender (4) is connected with the bottom main beam (5), the bottom main beam (5) is arranged below the hanging basket pouring completion beam section (8).
2. The hanging bracket for pouring the side span cast-in-place section and the folding section of the continuous rigid frame bridge according to claim 1, further comprising a cover beam embedded part and a beam top embedded part, wherein the cover beam supporting system (1) is connected with the auxiliary pier cover beam (7) through the cover beam embedded part, and the beam top supporting system (2) is connected with the hanging basket pouring completion beam section (8) through the beam top embedded part.
3. The hanging bracket for pouring the side span cast-in-place section and the closure section of the continuous rigid frame bridge according to claim 2, characterized in that the suspension system (3) is arranged at the top of the cover beam supporting system (1), and the suspension system (3) is arranged at the top of the beam top supporting system (2).
4. The continuous rigid frame bridge side span cast-in-place section and closure section casting hanger bracket according to claim 1, characterized by further comprising an auxiliary hanger rod (41), wherein one end of the auxiliary hanger rod (41) is connected with the hanging basket casting finished beam section (8), and the other end is connected with the bottom main beam (5).
5. The continuous rigid frame bridge side-span cast-in-place section and closure section pouring hanger bracket as claimed in claim 1, wherein the cover beam support system (1) comprises a first support column (11), a second support column (12) and a support beam (13), the support beam (13) is arranged on the top of the first support column (11) and the second support column (12), and the continuous rigid frame bridge side-span cast-in-place section and closure section pouring hanger bracket further comprises a reinforcing structure (14), and the reinforcing structure (14) is arranged between the first support column (11) and the second support column (12).
6. A continuous rigid frame bridge side span cast-in-place section and closure section pouring hanger frame according to any one of claims 1-5, characterized in that the suspension system (3) comprises a frame girder and a top girder (51), the top girder (51) is arranged on the top of the frame girder, and the frame girder is arranged on the top of the cover girder supporting system (1) and the beam top supporting system (2).
7. The hanging bracket for pouring the side span cast-in-place section and the folding section of the continuous rigid frame bridge according to claim 6, wherein the length direction of the frame beam body is consistent with the length direction of the bridge, and the frame beam body is perpendicular to the top main beam (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921316287.3U CN211171632U (en) | 2019-08-14 | 2019-08-14 | Continuous rigid frame bridge side-span cast-in-place section and closure section are pour and are used gallows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921316287.3U CN211171632U (en) | 2019-08-14 | 2019-08-14 | Continuous rigid frame bridge side-span cast-in-place section and closure section are pour and are used gallows |
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| CN211171632U true CN211171632U (en) | 2020-08-04 |
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| CN201921316287.3U Active CN211171632U (en) | 2019-08-14 | 2019-08-14 | Continuous rigid frame bridge side-span cast-in-place section and closure section are pour and are used gallows |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851318A (en) * | 2020-09-04 | 2020-10-30 | 安徽省交通建设股份有限公司 | Cantilever bridge side span formwork system and construction method thereof |
| CN113737665A (en) * | 2021-07-30 | 2021-12-03 | 中铁十九局集团第五工程有限公司 | Pier top supporting system for continuous beam side-span cast-in-place section |
-
2019
- 2019-08-14 CN CN201921316287.3U patent/CN211171632U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851318A (en) * | 2020-09-04 | 2020-10-30 | 安徽省交通建设股份有限公司 | Cantilever bridge side span formwork system and construction method thereof |
| CN111851318B (en) * | 2020-09-04 | 2021-09-07 | 安徽省交通建设股份有限公司 | Cantilever bridge side span formwork system and construction method thereof |
| CN113737665A (en) * | 2021-07-30 | 2021-12-03 | 中铁十九局集团第五工程有限公司 | Pier top supporting system for continuous beam side-span cast-in-place section |
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