CN210368646U - Support of bridge portal pier top closure section - Google Patents
Support of bridge portal pier top closure section Download PDFInfo
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- CN210368646U CN210368646U CN201920789533.0U CN201920789533U CN210368646U CN 210368646 U CN210368646 U CN 210368646U CN 201920789533 U CN201920789533 U CN 201920789533U CN 210368646 U CN210368646 U CN 210368646U
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Abstract
The utility model discloses a support of section is foldd on bridge gate-type mound top, the support includes: two standard section templates which are oppositely arranged; two closure section side dies respectively arranged on the two standard section templates; the folding section top die is arranged at the top of the two folding section side dies; each group of diagonal braces comprises a plurality of diagonal braces which are symmetrically distributed, and two ends of each diagonal brace are respectively connected with the standard section template and the closure section top template; each group of diagonal braces is provided with a group of transverse braces adjacent to the group of diagonal braces, each group of transverse braces comprises a plurality of transverse braces distributed at intervals along a vertical surface, and two ends of each transverse brace are respectively connected with the two closure section side molds. The utility model discloses a plurality of horizontal braces and diagonal brace, the construction load that closes up the section with the mound top is decomposed into the final concrete that transmits to standard section template and on it of power of vertical direction and horizontal direction, realizes not having pre-buried construction process.
Description
Technical Field
The utility model relates to a bridge gate-type pier support construction technical field, concretely relates to bridge gate-type pier top folds support of section.
Background
With the continuous development of urban traffic, the number of urban overhead bridges or overpass overpasses is continuously increased, and when the intersection angle between an overpass route and a ground route is small and the inclination is large, a gate pier structure is generally adopted and is limited by multiple factors such as terrain, structures and traffic, and the gate piers have flexible adaptability. Therefore, in bridge design, the gate piers are increasingly widely used in bridge construction.
The construction convenience of the bridge is improved, the safe construction of the bridge is required to be met, for the bridge construction in severe environments such as large wind, wave height, surge, strong typhoon, complex geology and the like, for example, the first sea-strait highway-railway dual-purpose bridge in China, namely the pond sea strait highway-railway dual-purpose bridge, is different from the previously constructed bay bridge, and the facing technical challenges and construction risks are far higher than those of other built or constructed sea-strait bridges in China, so that the adoption of the gate piers is also an optimal scheme in the bridge construction design.
In the pier top closure section construction process of the gate pier structure, a support is often required to be installed so as to facilitate the construction of the bridge gate pier. The installation and construction method of the conventional support is mostly a pre-embedded bracket method, and specifically comprises the following steps: the method comprises the steps of firstly pre-embedding a lower bracket embedded part when pouring pier body concrete, then sequentially installing brackets and distribution beams, installing supports of pier top closure sections, and finally installing closure section templates. In the method, the appearance quality of the concrete is influenced by the bracket embedded parts, and the bracket is shielded and influenced by the folding section when being detached, so that the detachment construction of the bracket has certain difficulty.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a support of bridge gate-type mound top section of foldeing.
In order to achieve the above object, the embodiment of the utility model provides a support of bridge gate-type pier top fold section, the support includes:
two standard section templates which are oppositely arranged;
two closure section side dies respectively arranged on the two standard section templates;
the folding section top die is arranged at the tops of the two folding section side dies;
each group of diagonal braces comprises a plurality of diagonal braces which are symmetrically distributed, and two ends of each diagonal brace are respectively connected with the standard section template and the closure section top template;
each group of the inclined supporting rods is provided with a group of transverse supporting rods which are adjacent to the inclined supporting rods, each group of the transverse supporting rods comprises a plurality of transverse supporting rods which are distributed at intervals along a vertical surface, and two ends of each transverse supporting rod are respectively connected with the two closure section side molds.
On the basis of the technical scheme, the transverse stay bar is connected with the closing section side die through a first screw rod jack and a horizontal end seat; the horizontal end seat is connected with the side mold of the closure section; one end of the first screw rod jack is detachably connected with the horizontal end seat, and the other end of the first screw rod jack is connected with the transverse supporting rod.
On the basis of the technical scheme, the inclined stay bar is connected with the standard section template through a second screw rod jack and an inclined end seat; the inclined end seat is connected with the standard section template; one end of the second screw rod jack is detachably connected with the inclined end seat, and the other end of the second screw rod jack is connected with the inclined support rod.
On the basis of the technical scheme, the inclined supporting rods are provided with a plurality of groups, and the inclined supporting rods are distributed at intervals along the axes of the two standard section templates.
On the basis of the technical scheme, each group of inclined supporting rods comprises two inclined supporting rods.
On the basis of the technical scheme, a plurality of transverse supporting rods in each group of transverse supporting rods are distributed in parallel.
Compared with the prior art, the utility model has the advantages of:
(1) the utility model provides a support of bridge gate-type mound top closure section, on the one hand, adopt a plurality of horizontal braces and diagonal brace, decompose the construction load of mound top closure section into the power of vertical direction and horizontal direction and finally transmit to standard section template and the concrete on it, realize the construction process that does not have pre-buried, it compares in conventional support, need not to set up pre-buried structures such as built-in fitting, pre-buried bracket, reduced the damage to concrete appearance quality to a great extent;
on the other hand, the stress in the bracket is jointly born by the transverse supporting rods and the inclined supporting rods, the requirement on the bearing capacity of each transverse supporting rod or each inclined supporting rod is reduced, and the two ends of each transverse supporting rod or each inclined supporting rod can be detachably connected, so that the bracket is convenient to mount and dismount, is convenient to use in a turnover mode in the construction process, and saves construction cost.
(2) The length of the screw jack connected with each transverse stay bar or each inclined stay bar is adjustable, so that the inclination and the symmetry of the side mould of the folding section and the top mould of the folding section can be conveniently adjusted to meet the construction requirements.
Drawings
Fig. 1 is a schematic structural diagram of a bracket of a portal pier top folding section of a bridge in an embodiment of the invention before a diagonal brace is installed;
fig. 2 is a schematic structural diagram of a bracket of a portal pier top closure section of a bridge in an embodiment of the invention before a second temporary chain bar is removed;
fig. 3 is a schematic structural diagram of a support of a portal pier top folding section of a bridge according to an embodiment of the present invention;
fig. 4 is a schematic top view of a structure of a support of a portal pier top closure of a bridge according to an embodiment of the present invention (no closure top mold is erected);
FIG. 5 is a schematic structural view of the junction between the transverse supporting rod and the side mold of the closure segment in the embodiment of the present invention;
fig. 6 is a schematic structural view of a first lead screw jack according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a horizontal end seat in an embodiment of the present invention;
fig. 8 is a schematic structural view of an oblique end seat according to an embodiment of the present invention;
in the figure: 1. a standard section template; 2. closing the section side mold; 20. a closing section side die unit; 3. closing a section top die; 4. a diagonal brace; 5. a transverse stay bar; 61. a first lead screw jack; 611. a nut socket; 612a, a first screw rod; 612b, a second screw; 613. an end plate; 62. a horizontal end seat; 621. horizontally fixing the end head; 622. a first ear plate; 623. a first channel steel; 624. reinforcing a steel plate; 71. a second screw jack; 72. an inclined end seat; 721. obliquely fixing the end head; 722. a second ear panel; 723. a second channel steel; 724. connecting steel plates; 81. a first temporary chain link; 82. a second temporary link.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. It is to be noted that all the figures are exemplary representations. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
Examples
Referring to fig. 3, an embodiment of the present invention provides a support for a portal pier top closure section of a bridge, where the support includes two standard section templates 1, two closure section side templates 2, a closure section top template 3, and at least one set of diagonal braces 4 and a horizontal brace 5 associated with the diagonal braces 4; the two standard section templates 1 are oppositely arranged, the two folding section side molds 2 are symmetrically arranged on the two standard section templates 1, the folding section top mold 3 is arranged at the tops of the two folding section side molds 2, each group of inclined stay bars 4 comprises a plurality of inclined stay bars 4 which are symmetrically distributed, and two ends of each inclined stay bar 4 are respectively connected with the standard section templates 1 and the folding section top mold 3; each group of the inclined supporting rods 4 is provided with a group of transverse supporting rods 5 which are adjacent to the inclined supporting rods 4, each group of the transverse supporting rods 5 comprises a plurality of transverse supporting rods 5 which are distributed at intervals along a vertical surface, and two ends of each transverse supporting rod 5 are respectively connected with the two folding section side dies 2.
The embodiment of the utility model provides a support of bridge gate-type mound top closure section adopts a plurality of horizontal braces and diagonal brace, decomposes the construction load of mound top closure section into the power of vertical direction and horizontal direction and finally transmits to standard section template and the concrete on it, realizes the construction process that does not have pre-buried, and it compares in conventional support, need not to set up pre-buried structures such as built-in fitting, pre-buried bracket, has reduced the damage to concrete appearance quality to a great extent; secondly, a plurality of transverse supporting rods and inclined supporting rods bear the stress in the support together, namely the bearing capacity of the support can be guaranteed, and the requirement on the bearing capacity of each transverse supporting rod or each inclined supporting rod is reduced.
Further, as shown in fig. 4, the inclined supporting rods 4 have multiple groups, and the multiple groups of the inclined supporting rods 4 are distributed at intervals along the axes of the two standard section templates 1. In an actual application scene, a single group of inclined supporting rods 4 cannot support the closure section top formwork 3 and the concrete on the closure section top formwork, therefore, a plurality of groups of inclined supporting rods 4 are distributed at intervals along the axis of the standard section formwork 1, the number of the groups can be set according to an actual field and a stress condition, and if the bearing capacity of the support is large, the number of the groups of the inclined supporting rods 4 is relatively large.
Specifically, as shown in fig. 2 to 3, each set of the diagonal braces 4 includes two diagonal braces 4. According to experience, in most cases, safe bearing can be satisfied when each group of inclined supporting rods 4 is two symmetrically distributed inclined supporting rods, and of course, when the required bearing force is relatively large, the number of groups of inclined supporting rods or the number of the inclined supporting rods 4 in each group can be increased.
Further, as shown in fig. 1 to 4, a plurality of transverse struts 5 in each set of transverse struts 5 are distributed in parallel. The plurality of transverse supporting rods 5 are horizontally distributed, the inclination and the symmetry of a folding section side mold unit 20 in a folding section side mold are easier to visually control, the overall stability of the support is improved, and the safety of an implementation place is further effectively guaranteed.
As a preferable mode of the most practical embodiment, as shown in fig. 5, the transverse supporting rod 5 is connected with the closure section side mold 2 through a first lead screw jack 61 and a horizontal end seat 62; the horizontal end seat 62 is connected with the closure section side die 2; one end of the first screw jack 61 is detachably connected with the horizontal end seat 62, and the other end is connected with the transverse supporting rod 5. The inclined strut 4 is connected with the standard section template 1 through a second screw rod jack 71 and an inclined end seat 72; the inclined end seat 72 is connected with the standard section template 1; one end of the second lead screw jack 71 is detachably connected with the inclined end seat 72, and the other end is connected with the inclined support rod 4. In this embodiment, the first lead screw jack 61 and the second lead screw jack 71 are respectively welded to the transverse strut 5 and the diagonal strut 4, and the horizontal end seat 62 and the diagonal end seat 72 are respectively welded to the closed section side mold 2 and the standard section mold 1; the first screw rod jack 61 and the second screw rod jack 71 are detachably connected with the corresponding horizontal end seat 62 and the corresponding inclined end seat 72 respectively, namely the transverse stay bar 5 and the inclined stay bar 4 are connected with the closure section side mold 2 and the standard section mold plate 1 respectively; and the first screw rod jack 61 and the second screw rod jack 71 are screw rod jacks capable of forward and backward screwing, so that the inclination and the symmetry of the side mold 2 of the closure section and the levelness of the top mold 3 of the closure section can be further adjusted by adjusting the screw rod jacks.
Further, as shown in fig. 6, the first lead screw jack 61 includes a nut sleeve 611, a first screw 612a, a second screw 612b, and an end plate 613; the first screw rod 612a and the second screw rod 612b are movably connected to two ends of the nut sleeve 611 respectively, and the free end of the first screw rod 612a is connected with the transverse supporting rod 5; the two ends of the end plate 613 are respectively pinned with the free end of the second screw 612b and the horizontal end seat 62. In this embodiment, the structure of the second lead screw jack 71 is the same as that of the first lead screw jack 61, and the first lead screw jack 61 or the second lead screw jack 71 is adjusted by a positive and negative lead screw nut sleeve.
As shown in fig. 7, the horizontal end seat 62 includes a horizontal fixing end 621, a first ear plate 622, a first channel 623, and a reinforcing steel plate 624; the horizontal fixed end 621 is welded on the closure section side die 2; the first lug plate 622 is connected with the first screw rod jack 61 through a pin shaft; the number of the first channel steels 623 is two, openings of the two first channel steels 623 are arranged oppositely, and the two first channel steels 623 are welded between the horizontal fixing end 621 and the first ear plate 622; the reinforcing steel plate 624 is welded to a groove of each first channel 623.
As shown in fig. 8, the inclined end seat 72 includes an inclined fixing end 721 welded to the standard section formwork, a second channel 723 with two opposite openings, a second ear plate 722 and a connecting steel plate 724; the second channel steel 723 positioned on the lower side is welded to the inclined fixing end 721; a second lug plate 722 is welded in a groove of the second channel steel 722 positioned on the upper side, and the second lug plate 722 is in pin connection with the second screw rod jack 71; the connecting steel plate 724 is welded to the backs of the two second channel steels 723.
The horizontal fixed end 621 and the inclined fixed end 721 are welded on the closure section side die 2 and the standard section die plate 1, and are detachably connected through the end plate pin joint of the first lug plate 622 and the first screw rod jack 61 and the end plate pin joint of the second lug plate 722 and the second screw rod jack 71, so that the basic requirements of installation and connection can be met, the quick installation and disassembly are facilitated, the repeated use times of the support can be improved, and the support is more economical and applicable.
The embodiment of the utility model provides a support of bridge portal pier top folding section, its both ends of horizontal brace rod, diagonal brace rod can all be dismantled and connected, namely the round pin hub connection, therefore, be convenient for the installation and the demolition of support, in the work progress, be convenient for have enough to meet the need the use, practice thrift construction cost; and the length of the screw rod jack connected with each transverse stay bar or each diagonal stay bar is adjustable, so that the inclination and the symmetry of the side mould of the folding section and the top mould of the folding section can be conveniently adjusted to meet the construction requirements.
For a better understanding of the present invention, the method of mounting the bracket is further described below.
A method for installing a bracket of a portal pier top closure section of a bridge comprises the following steps as shown in figures 1-3:
step 1: two standard section templates 1 and two closure section side templates 2 which are oppositely arranged are constructed in advance, and a plurality of groups of transverse supporting rods 5 are arranged between the two closure section side templates 2;
step 2: a plurality of groups of diagonal braces 4 adjacent to the transverse brace 5 are arranged on the opposite surfaces of the two standard section templates 1;
and step 3: and hoisting the closure section top die 3 at the upper ends of the two closure section side dies 2, and connecting the closure section top die 3 with the top ends of the inclined stay bars 4 to finish the installation of the support.
As a preferred scheme of the embodiment of the present invention, as shown in fig. 1, each of the closure section side molds 2 includes a plurality of sections of closure section side mold units 20, and the specific installation method of step 1 includes:
pre-constructing two standard section formworks 1 which are oppositely arranged and two first section closure section side form units which are oppositely arranged;
the upper part of the first section of the closure section side die unit is sequentially provided with a plurality of remaining closure section side die units 20, and a transverse stay bar 5 is arranged between the closure section side die units 20 of two opposite sections.
When the height of the support is high, a staged installation mode is adopted, and compared with one-time installation of the closure section side die, the construction requirement for installing the closure section side die unit is lowered, such as the maximum bearing capacity of a temporary chain rod for fixing the closure section side die.
Further, as shown in fig. 5, the step 1 further includes the steps of:
mounting a first screw rod jack 61 at each end of the transverse supporting rod 5 in advance, and mounting a horizontal end seat 62 on the closed section side die unit 20 in advance; when the transverse brace 5 is arranged between the two opposite closed section side die units 20, the first screw rod jack 61 is in pin joint with a horizontal end seat 62 arranged on the corresponding closed section side die unit 20; adjusting the length of the first screw rod jack 61 to enable the closing section side die unit 20 of the two opposite sections to meet the installation requirement; namely, the inclination and symmetry of the side die units 20 of the folding sections are ensured, all the side die units 20 of the folding sections are ensured to form an inclined plane, the stress of the transverse supporting rods 5 from top to bottom is orderly changed instead of sudden change, and the stability of the bracket is improved.
Further, the step 2 further comprises the steps of:
a second screw rod jack 71 is arranged at the lower end of the diagonal brace 4 in advance, and a diagonal end seat 72 is arranged on the standard section template 1 in advance; when a plurality of groups of diagonal braces 4 adjacent to the transverse brace 5 are arranged on the opposite surfaces of the two standard section templates 1, connecting the second screw rod jacks 71 with the corresponding standard section templates 1; adjusting the length of the second screw jack 71 to make the closure section top die 3 meet the installation requirements; even if the closure segment top mold 3 is horizontal, so as to ensure even stress on the closure segment top mold and improve the stability of the bracket.
The mounting method of the bracket is simple in construction operation, safe and reliable.
In order to better explain the present embodiment, a specific embodiment will be described below.
The method for installing the bracket of the bridge portal pier top folding section provided by the embodiment comprises the following detailed steps:
step S1: constructing two standard section formworks 1 which are oppositely arranged in advance, and installing an inclined end seat 72 on the opposite surface of each standard section formwork 1 in advance;
step S2: the two standard section templates 1 are oppositely provided with a first section of the closure section side die unit 20, the closure section side die unit 20 is pre-assembled with a horizontal end seat 62, and the closure section side die unit 20 is temporarily fixed on the standard section templates 1 by using two first temporary chain rods 81;
step S3: installing a first screw rod jack 61 at both ends of a transverse strut 5 in advance, installing at least one transverse strut 5 between two opposite side mould units 20 of the closure section, namely, pin-connecting the first screw rod jack 61 connected with the transverse strut 5 on the corresponding horizontal end seat 62;
step S4: removing the first temporary link 81;
step S5: sequentially mounting the rest of the closure section side die units 20 on the upper parts of the closure section side die units 20 according to the method of the steps 2-4, mounting transverse supporting rods 5 between the closure section side die units 20 of the two opposite sections, and forming two closure section side dies 2 which are oppositely arranged by all the closure section side die units 20;
step S6: mounting a second lead screw jack 71 at the lower end of each of the two diagonal braces 4 in advance, pin-connecting the second lead screw jacks 71 with the diagonal end seats 72 one by one, namely, mounting the two diagonal braces 4 on the two standard section templates 1 respectively, and then temporarily fixing the diagonal braces 4 on the standard section templates 1 by using second temporary chain rods 82;
step S7: hoisting a closure section top die 3 to the upper end of the closure section side die 2, and bolting the top end of the diagonal brace 4 to the closure section top die 3;
step S8: and removing the second temporary chain rod 82 to finish the installation of the bracket.
The present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered to be within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (6)
1. A support of bridge portal pier top closure section, characterized in that the support includes:
two standard section templates (1) which are oppositely arranged;
two closure section side dies (2) respectively arranged on the two standard section templates (1);
the folding section top die (3) is arranged at the top of the two folding section side dies (2);
each group of inclined supporting rods (4) comprises a plurality of symmetrically distributed inclined supporting rods (4), and two ends of each inclined supporting rod (4) are respectively connected with the standard section template (1) and the closure section top template (3);
each group of the inclined supporting rods (4) is provided with a group of transverse supporting rods (5) which are close to the inclined supporting rods (4), each group of the transverse supporting rods (5) comprises a plurality of transverse supporting rods (5) which are distributed at intervals along a vertical surface, and two ends of each transverse supporting rod (5) are respectively connected with the two folding section side dies (2).
2. The support of the portal pier top closure of a bridge according to claim 1, characterized in that the transverse brace (5) is connected with the closure side mold (2) through a first screw jack (61) and a horizontal end seat (62); the horizontal end seat (62) is connected with the closure section side die (2); one end of the first screw rod jack (61) is detachably connected with the horizontal end seat (62), and the other end of the first screw rod jack is connected with the transverse supporting rod (5).
3. The support of the portal pier top closure section of the bridge according to claim 1, characterized in that the diagonal brace (4) is connected with the standard section formwork (1) through a second screw jack (71) and a diagonal end seat (72); the inclined end seat (72) is connected with the standard section template (1); one end of the second screw rod jack (71) is detachably connected with the inclined end seat (72), and the other end of the second screw rod jack is connected with the inclined support rod (4).
4. The support for the portal pier top closure section of a bridge according to claim 1, wherein the inclined supporting rods (4) are provided with a plurality of groups, and the groups of the inclined supporting rods (4) are distributed at intervals along the axes of the two standard section templates (1).
5. The support for a portal pier top closure according to claim 1, wherein each set of diagonal braces (4) comprises two diagonal braces (4).
6. The support for a portal pier top closure according to claim 1, wherein a plurality of transverse struts (5) in each set of transverse struts (5) are distributed in parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920789533.0U CN210368646U (en) | 2019-05-28 | 2019-05-28 | Support of bridge portal pier top closure section |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920789533.0U CN210368646U (en) | 2019-05-28 | 2019-05-28 | Support of bridge portal pier top closure section |
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| CN210368646U true CN210368646U (en) | 2020-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055903A (en) * | 2019-05-28 | 2019-07-26 | 中铁大桥局集团有限公司 | The bracket and its installation method of bridge gate-type pier top closure segment |
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2019
- 2019-05-28 CN CN201920789533.0U patent/CN210368646U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055903A (en) * | 2019-05-28 | 2019-07-26 | 中铁大桥局集团有限公司 | The bracket and its installation method of bridge gate-type pier top closure segment |
| CN110055903B (en) * | 2019-05-28 | 2023-11-07 | 中铁大桥局集团有限公司 | Support of bridge gate type pier top folding section and installation method thereof |
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