CN213709142U - Cast-in-place pier constructed by modular assembly of reinforcing steel bars - Google Patents
Cast-in-place pier constructed by modular assembly of reinforcing steel bars Download PDFInfo
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- CN213709142U CN213709142U CN202021157287.6U CN202021157287U CN213709142U CN 213709142 U CN213709142 U CN 213709142U CN 202021157287 U CN202021157287 U CN 202021157287U CN 213709142 U CN213709142 U CN 213709142U
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Abstract
The utility model provides a cast-in-place pier that reinforcing bar modularization assembly was built relates to bridge construction technical field. Cast-in-place pier that reinforcing bar modularization assembly was built includes by down and on in proper order: basis, pier shaft and hood, install basic reinforcing bar earlier during basic construction, pier shaft reinforcing bar is along highly dividing a plurality of reinforcing bar modules with width direction, the reinforcing bar module ligature becomes wholly in the mill, transport to on-the-spot back hoist and mount reinforcing bar module, penetrate basic reinforcing bar with pier shaft owner muscle lower extreme, connect stirrup and connection lacing wire between the ligature reinforcing bar module, main muscle is connected through the connector between different reinforcing bar modules, treat that last section pier shaft reinforcing bar module installation back, hoist hood reinforcing bar module, penetrate the hood reinforcing bar module with pier shaft owner muscle, pour last section pier shaft and hood concrete, accomplish the pier construction. The structural steel bar is manufactured in a factory and in a modularized mode, the steel bar is accurately positioned and high in quality, binding of the steel bars on site one by one is avoided, and construction speed is high.
Description
Technical Field
The utility model relates to a bridge construction technical field especially relates to a cast-in-place pier that reinforcing bar modularization assembly was built.
Background
The traditional bridge pier is constructed by adopting cast-in-place construction, reinforcing steel bars are transported to the site, scaffolds and erecting templates are erected on the site, the reinforcing steel bars are bound and formed one by one, concrete is poured, and the templates are removed after the strength is reached. The on-site binding speed of the reinforcing steel bars one by one is low, the efficiency is low, and the operation time is long; the pier is of a vertical structure, the rigidity is often insufficient when reinforcing steel bars are vertically bound, the position of the reinforcing steel bars is easy to deflect, the problems of insufficient protective layers, overlarge or undersize space, insecure reinforcing steel bar frameworks and the like are caused, the engineering quality is influenced, the on-site overlong operation time is easily influenced by factors such as weather and the like, and a large number of auxiliary measures and equipment are needed; particularly for railway piers, the cross section size is large, and the related problems are more prominent.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cast-in-situ pier which is built by the modularized assembly of reinforcing steel bars, so as to solve the problems of slow speed, low efficiency and long operation time of the on-site binding of the reinforcing steel bars one by one; the pier is vertical structure, often the rigidity is not enough during the vertical ligature of reinforcing bar, causes reinforcing bar position skew easily, brings the protective layer inadequately, the interval is too big or undersize, the reinforcing bar skeleton scheduling problem insecure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a pair of cast-in-place pier that reinforcing bar modularization assembly was built, by down and go up foundation, pier shaft and hood in proper order, the pier shaft with it is provided with pier shaft reinforcing bar and hood reinforcing bar, its characterized in that to correspond in the hood:
foundation steel bars are arranged in the foundation, and positioning pipes are arranged at the tops of the foundation steel bars;
the pier body steel bars are fixedly arranged on the foundation steel bars and comprise a plurality of steel bar modules, each steel bar module is formed by fixedly connecting a pier body main steel bar and a pier body stirrup, the bottom of the pier body main steel bar is fixedly connected with the foundation steel bars, and the pier body main steel bars among the steel bar modules are fixedly connected;
the top of the pier body main rib is fixedly connected with the top cap reinforcing steel bar.
Further, the foundation steel bar top with pier shaft owner muscle matches the setting each other the pre-buried registration arm in top of basis, the registration arm with pier shaft owner muscle corresponds each other.
Furthermore, the pier body adopts a solid or hollow section, and the pier body main ribs comprise a pier body main rib I and a pier body main rib II; the pier body stirrups comprise a pier body stirrup I and a pier body stirrup II;
pier body owner muscle one with pier body stirrup one ligature becomes whole, pier body owner muscle two with pier body stirrup two ligatures become whole, pier body owner muscle one with pier body owner muscle two corresponds each other, reserves the clearance between the two.
Furthermore, mechanical anchoring ends are respectively arranged at the top and the bottom ends of the pier body main rib, a mechanical anchoring end I is arranged at the top ends of the pier body main rib I and the pier body main rib II, and a mechanical anchoring end II is arranged at the bottom ends of the pier body main rib I and the pier body main rib II; the pier body main rib I and the pier body main rib II both adopt vertical steel bars, and no hook is arranged at the end part of each vertical steel bar; the mechanical anchoring end can adopt an anchoring plate, a bolt anchor head or a welding anchoring rib.
Furthermore, the connecting stirrups are connected with the pier body main reinforcements I and the pier body main reinforcements II, and when the pier body sections adopt solid sections, the connecting stirrups are arranged within the section width range; when the hollow sections are adopted, the connecting stirrups are arranged on the pier walls, the connecting stirrups are arranged in the gaps between the pier body stirrups I and the pier body stirrups II along the height direction, and the connecting tie bars are bound at the two ends of the connecting stirrups.
Furthermore, pier shaft owner muscle is connected with steel bar connector, steel bar connector adopts welding, threaded sleeve or the telescopic mechanical connection form of extrusion.
Further, the steel bar in the top cap comprises a top cap vertical bar and a top cap horizontal bar, and the top cap horizontal bar is matched with the pier body main bar.
Furthermore, the concrete of the foundation and the pier body section is poured at one time, and no work joint is arranged between the pier body and the foundation.
Compared with the prior art, a cast-in-place pier that adopts reinforcing bar modularization assembly to build has following advantage:
1. divide into different modules with the pier reinforcing bar, each module is made in the mill, adopts special tool equipment to carry out the ligature shaping, and the reinforcing bar location is accurate, has promoted engineering quality.
2. Different steel bar modules are transported to the site, the steel bar cage is light in weight and convenient to transport, hoisting and installation are carried out on the site through a crane, binding of the steel bars on the site one by one is avoided, and construction speed is high.
3. The field operation time is short, the labor cost is low, and the safety risk is reduced; after the reinforcement is assembled and constructed in a modularized manner, the cast-in-place template is installed, so that the erection and the disassembly of a field bracket are omitted, and the cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a cast-in-place pier constructed by modular assembly of reinforcing bars according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a foundation and reinforcing bars of a cast-in-place pier constructed by modular assembly of reinforcing bars according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a segment steel bar of a pier body of a cast-in-place pier constructed by modularized assembly of steel bars according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a top hat segment steel bar of a cast-in-place pier constructed by modular assembly of steel bars according to an embodiment of the present invention;
fig. 5 is a schematic installation diagram (one) provided by the embodiment of the present invention;
fig. 6 is a schematic installation diagram (ii) provided by the embodiment of the present invention;
fig. 7 is a schematic installation diagram (three) provided by the embodiment of the present invention;
fig. 8 is a schematic view of a middle frame pier body and steel bars according to an embodiment of the present invention;
FIG. 9 is a sectional view taken along line I-I and line II-II of FIG. 8;
fig. 10 is a schematic view of a middle frame pier top cap and steel bars according to an embodiment of the present invention;
fig. 11 is a schematic view of the installation of the middle frame pier provided by the embodiment of the invention.
Icon:
1-a base;
11-foundation reinforcing steel bars;
12-a positioning tube;
2-pier body;
21-pier body main rib I;
22-pier body main ribs II;
3-top cap;
31-mechanical anchoring end one;
32-mechanical anchoring end two;
41-pier body stirrup I;
42-pier body stirrup II;
51-connecting stirrups;
52-connecting tie bars;
6-a steel bar connector;
7-top cap vertical ribs;
8-horizontal rib of top cap.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first" and "second" 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. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
As shown in fig. 1-7, for the embodiment of the present invention provides a structural schematic diagram of a cast-in-place pier constructed by modular assembly of steel bars, the present invention is described with reference to the accompanying drawings.
A cast-in-situ bridge pier constructed by modularized assembly of reinforcing steel bars sequentially comprises a foundation 1, a pier body 2 and a top cap 3 from bottom to top, pier body reinforcing steel bars and top cap reinforcing steel bars are correspondingly arranged in the pier body 2 and the top cap 3,
foundation steel bars 11 are arranged in the foundation 1, and positioning pipes 12 are arranged at the tops of the foundation steel bars 11;
the fixed 2 reinforcing bars that set up the pier shaft on the foundation reinforcement 11, 2 reinforcing bars on the pier shaft contain a plurality of reinforcing bar module, and each reinforcing bar module is formed by 2 main muscle of pier shaft and 2 stirrup fixed connection of pier shaft, 2 main muscle bottoms of pier shaft and 11 fixed connection of foundation reinforcement, equal fixed connection between 2 main muscle of pier shaft between each reinforcing bar module, 2 main muscle top fixed connection hood 3 reinforcing bars on the pier shaft.
Specifically, 11 tops of foundation reinforcement and 2 main muscle of pier shaft match the setting each other to guarantee that 2 main muscle of pier shaft penetrate wherein, at the pre-buried registration arm 12 in 1 top on basis, registration arm 12 corresponds with 2 main muscle of pier shaft each other, and through 2 main muscle of pier shaft and 12 interrelationships of registration arm during the construction, guarantee that the position of 2 reinforcing bars of pier shaft is accurate.
Specifically, the pier body 2 is of a solid or hollow section, the steel bars in the sections of the pier body 2 are manufactured in a factory, and the main ribs of the pier body 2 comprise a pier body main rib I21 and a pier body main rib II 21; the pier body 2 stirrup comprises a pier body stirrup 41 and a pier body stirrup 42; pier shaft owner muscle one 21 and pier shaft stirrup one 41 become wholly through special frock ligature, pier shaft owner muscle two 21 and pier shaft stirrup two 42 become wholly through special frock ligature, pier shaft owner muscle one 21 and pier shaft owner muscle two 21 mutual correspondences, reserve the clearance between the two, each other does not influence when guaranteeing the installation.
Specifically, the top and bottom ends of the main pier body 2 rib are respectively provided with a mechanical anchoring end, the top ends of the first pier body rib 21 and the second pier body rib 21 are provided with a first mechanical anchoring end 31, and the bottom ends of the first pier body rib 21 and the second pier body rib 21 are provided with a second mechanical anchoring end 32; pier shaft owner muscle one 21 and pier shaft owner muscle two 21 all adopt vertical reinforcing bar, and the crotch is not established to its tip, is convenient for penetrate basic reinforcement 11 in, adopts mechanical anchoring end to strengthen to reduce anchor length and improve the anchor security, mechanical anchoring end can adopt anchor board, bolt anchor head, welding anchor muscle etc..
Specifically, a connection stirrup 51 connects pier shaft owner muscle one 21 and pier shaft owner muscle two 21, and when 2 sections of pier shaft adopted solid cross-section, connection stirrup 51 arranged in cross-section width scope, when adopting hollow section, connection stirrup 51 arranged on the mound wall, connection stirrup 51 arranged in pier shaft stirrup one 41 and pier shaft stirrup two 42 clearance along the direction of height, connection lacing wire 52 ligature was at connection stirrup 51 both ends. The connecting stirrup 51 ensures the integrity of the pier body main reinforcement I21 and the pier body main reinforcement II 21, plays a role of restraining the main reinforcement together with the pier body stirrup I41 and the pier body stirrup II 42, and the connecting tie bar 52 enhances the strength of the connecting stirrup 51.
Specifically, pier shaft 2 owner muscle is connected with steel bar connector 6, adopts mechanical connection forms such as welding, screw sleeve or extrusion sleeve.
Concretely, the reinforcing bar in the hood 3 ligatures in the mill into whole, and the reinforcing bar includes the vertical muscle 7 of hood and the horizontal muscle 8 of hood in the hood 3, and the horizontal muscle 8 of hood matches each other with pier shaft owner muscle (21, 22) position
Specifically, the top and bottom ends of the main pier body 2 rib are respectively provided with a mechanical anchoring end, the top ends of the first pier body rib 21 and the second pier body rib 21 are provided with a first mechanical anchoring end 31, and the bottom ends of the first pier body rib 21 and the second pier body rib 21 are provided with a second mechanical anchoring end 32; pier shaft owner muscle one 21 and pier shaft owner muscle two 21 all adopt vertical reinforcing bar, and its tip does not establish the crotch, guarantees that pier shaft 2 owner muscle inserts wherein.
Specifically, when the pier adopts the frame mound, 2 sections of pier shaft reinforcing bar modules, the 3 reinforcing bar modules of hood are transported to the scene after the ligature shaping in mill, hoist two 2 sections of pier shaft reinforcing bar modules respectively earlier, penetrate basic reinforcing bar 11, hoist 3 reinforcing bar modules of hood again, once pour basis 1, pier shaft 2 and 3 concrete of hood and accomplish the construction.
Specifically, 2 sections of pier shaft and 3 reinforcing bar modules of hood when installing, set up the guy rope, guy rope one end is fixed on the reinforcing bar module, and one end is passed through the earth anchor and is carried out the anchor for the straightness that hangs down of adjustment steel reinforcement cage, and the stability in the assurance work progress.
Specifically, the template for pouring the pier is assembled, and after the steel bar modules are installed, the assembled template is hoisted and sleeved on the steel bar modules without erecting temporary supports.
Specifically, the concrete of the foundation 1 and the pier body 2 sections is poured at one time, no construction joint is arranged between the pier body 2 and the foundation 1, a construction joint is reserved at the bottom of the pier body 2 during conventional cast-in-place construction, and the bottom is an area with the largest structural stress, so that the concrete is easily a weak link.
The embodiment of the utility model provides a cast-in-place pier that adopts reinforcing bar modularization assembly to build divides the pier reinforcing bar into different modules, and each module is made in the mill, adopts special tooling equipment to carry out the ligature shaping, and the reinforcing bar location is accurate, has promoted the engineering quality; different reinforcement modules are transported to the site, the reinforcement cage is light in weight and convenient to transport, hoisting and installation are carried out on the site through a crane, binding of the reinforcement bars on the site one by one is avoided, and the construction speed is high; the field operation time is short, the labor cost is low, and the safety risk is reduced; after the reinforcement is assembled and constructed in a modularized manner, the cast-in-place template is installed, so that the erection and the disassembly of a field bracket are omitted, and the cost is reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (8)
1. The utility model provides a cast-in-place pier that reinforcing bar modularization assembly was built, by down and on including basis, pier shaft and top cap in proper order, the pier shaft with correspond in the top cap and be provided with pier shaft reinforcing bar and top cap reinforcing bar, its characterized in that:
foundation steel bars are arranged in the foundation, and positioning pipes are arranged at the tops of the foundation steel bars;
the pier body steel bars are fixedly arranged on the foundation steel bars and comprise a plurality of steel bar modules, each steel bar module is formed by fixedly connecting a pier body main steel bar and a pier body stirrup, the bottom of the pier body main steel bar is fixedly connected with the foundation steel bars, and the pier body main steel bars among the steel bar modules are fixedly connected;
the top of the pier body main rib is fixedly connected with the top cap reinforcing steel bar.
2. The cast-in-place pier constructed by modular assembly of reinforcing steel bars as claimed in claim 1, wherein the top of the foundation reinforcing steel bars and the pier body main bars are matched with each other, positioning pipes are embedded in the top of the foundation, and the positioning pipes correspond to the pier body main bars.
3. The cast-in-place pier constructed by modular assembly of reinforcing steel bars according to claim 1, wherein the pier body is of a solid or hollow section, and the pier body main ribs comprise a pier body main rib I and a pier body main rib II; the pier body stirrups comprise a pier body stirrup I and a pier body stirrup II;
pier body owner muscle one with pier body stirrup one ligature becomes whole, pier body owner muscle two with pier body stirrup two ligatures become whole, pier body owner muscle one with pier body owner muscle two corresponds each other, reserves the clearance between the two.
4. The cast-in-place pier constructed by modular assembly of reinforcing steel bars according to claim 3, wherein mechanical anchoring ends are respectively arranged at the top and bottom ends of the pier body main rib, a mechanical anchoring end I is arranged at the top ends of the pier body main rib I and the pier body main rib II, and a mechanical anchoring end II is arranged at the bottom ends of the pier body main rib I and the pier body main rib II; the pier body main rib I and the pier body main rib II both adopt vertical steel bars, and no hook is arranged at the end part of each vertical steel bar;
the mechanical anchoring end can adopt an anchoring plate, a bolt anchor head or a welding anchoring rib.
5. The cast-in-place pier constructed by modular assembly of reinforcing steel bars according to claim 4, wherein a connecting stirrup connects the first pier body main rib and the second pier body main rib, and when a pier body section adopts a solid section, the connecting stirrup is arranged within the section width range; when the hollow sections are adopted, the connecting stirrups are arranged on the pier walls, the connecting stirrups are arranged in the gaps between the pier body stirrups I and the pier body stirrups II along the height direction, and the connecting tie bars are bound at the two ends of the connecting stirrups.
6. The cast-in-place pier constructed by modular assembly of reinforcing steel bars as claimed in claim 1, wherein the pier body main reinforcing steel bars are connected with reinforcing steel bar connectors, and the reinforcing steel bar connectors are in a mechanical connection form of welding, threaded sleeves or extrusion sleeves.
7. The cast-in-place pier constructed by modular assembly of reinforcing steel bars as claimed in claim 1, wherein the reinforcing steel bars in the top cap comprise top cap vertical ribs and top cap horizontal ribs, and the positions of the top cap horizontal ribs and the positions of pier body main ribs are matched with each other.
8. The cast-in-place pier constructed by modular assembly of reinforcing steel bars according to claim 1, wherein the foundation and the pier body section are cast in concrete at one time, and no construction seams are arranged between the pier body and the foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021157287.6U CN213709142U (en) | 2020-06-19 | 2020-06-19 | Cast-in-place pier constructed by modular assembly of reinforcing steel bars |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021157287.6U CN213709142U (en) | 2020-06-19 | 2020-06-19 | Cast-in-place pier constructed by modular assembly of reinforcing steel bars |
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| CN213709142U true CN213709142U (en) | 2021-07-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494051A (en) * | 2021-08-09 | 2021-10-12 | 中铁大桥局集团有限公司 | Construction method for block-by-block prefabricated installation of variable-section inclined tower steel reinforcement framework |
-
2020
- 2020-06-19 CN CN202021157287.6U patent/CN213709142U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494051A (en) * | 2021-08-09 | 2021-10-12 | 中铁大桥局集团有限公司 | Construction method for block-by-block prefabricated installation of variable-section inclined tower steel reinforcement framework |
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