CN113073553A - Pile cap embedded upright post steel bar positioning device and construction method thereof - Google Patents

Pile cap embedded upright post steel bar positioning device and construction method thereof Download PDF

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Publication number
CN113073553A
CN113073553A CN202110224084.7A CN202110224084A CN113073553A CN 113073553 A CN113073553 A CN 113073553A CN 202110224084 A CN202110224084 A CN 202110224084A CN 113073553 A CN113073553 A CN 113073553A
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China
Prior art keywords
bearing platform
steel
prefabricated
steel bars
pouring
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CN202110224084.7A
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Chinese (zh)
Inventor
蔡学峰
王彦强
李德昆
梁辉
吴伟斌
黄勇
张大伟
陈家骖
黄健
徐圳
向考
郑学锦
陈润军
王宏涛
曹明
华合新
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China Railway Major Bridge Engineering Group Co Ltd MBEC
China Railway Major Bridge Bureau Shanghai Engineering Co Ltd
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China Railway Major Bridge Engineering Group Co Ltd MBEC
China Railway Major Bridge Bureau Shanghai Engineering Co Ltd
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Application filed by China Railway Major Bridge Engineering Group Co Ltd MBEC, China Railway Major Bridge Bureau Shanghai Engineering Co Ltd filed Critical China Railway Major Bridge Engineering Group Co Ltd MBEC
Priority to CN202110224084.7A priority Critical patent/CN113073553A/en
Publication of CN113073553A publication Critical patent/CN113073553A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/10Deep foundations
    • E02D27/12Pile foundations
    • E02D27/14Pile framings, i.e. piles assembled to form the substructure
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements
    • E04G21/16Tools or apparatus
    • E04G21/18Adjusting tools; Templates
    • E04G21/1841Means for positioning building parts or elements

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The embodiment of the invention discloses a positioning device for embedded upright post steel bars of a bearing platform and a construction method thereof, for example, the positioning device comprises the following steps: the utility model provides a pre-buried stand reinforcing bar positioner of cushion cap, sets up on the cushion cap, the cushion cap includes the pre-buried stand reinforcing bar of cushion cap, its characterized in that, the pre-buried stand reinforcing bar positioner of cushion cap includes: the two steel bar positioning pieces are respectively arranged on the corresponding bearing platform embedded upright steel bars; connect the mounting, connect two the reinforcing bar setting element includes: the two first I-shaped steels arranged in parallel are respectively connected with the two steel bar positioning pieces; and the second I-beams are arranged in parallel and are respectively connected with the two first I-beams. The embodiment of the invention realizes the accurate positioning of the embedded upright steel bars of the bearing platform and ensures that the verticality of the embedded steel bars after positioning meets the requirements.

Description

Pile cap embedded upright post steel bar positioning device and construction method thereof
Technical Field
The invention relates to the technical field of bridge construction, in particular to a positioning device for embedded upright post steel bars of a bearing platform and a construction method thereof.
Background
With the rapid development of the economy of China, the bridge construction business of China is also rapidly developed. In the bridge construction process, the prefabrication and assembly construction technology can obviously shorten the construction period and reduce the construction road occupying time, and meanwhile, the bridge construction technology has the advantages of high construction quality, low safety risk, environmental protection and the like. Therefore, the prefabrication, assembly and construction technology is widely applied to municipal bridge construction; the prefabricated bearing platform is an important part in the prefabrication, assembly and construction.
At present, in the construction process of a prefabricated bearing platform, embedded steel bars are generally positioned by spot welding the embedded steel bars on horizontal steel bars or manufacturing comb-shaped positioning clamps as positioning devices of the embedded steel bars, the method generally has the problem that the verticality of the positioned steel bars cannot meet the requirement, or in the construction process, the embedded steel bars are deviated due to improper operation of workers and collision with the embedded steel bars, so that the installation quality of the steel bars is influenced, and meanwhile, certain influence is also caused on subsequent construction.
Disclosure of Invention
Therefore, the embodiment of the invention provides a positioning device for pre-buried stand column steel bars of a bearing platform and a construction method thereof, which realize accurate positioning of the pre-buried stand column steel bars of the bearing platform and ensure that the verticality of the pre-buried stand column steel bars after positioning meets the requirements.
On one hand, the embodiment of the invention provides a positioning device for pre-buried stand column steel bars of a bearing platform, which is arranged on the bearing platform, wherein the bearing platform comprises the pre-buried stand column steel bars of the bearing platform, and the positioning device for the pre-buried stand column steel bars of the bearing platform is characterized by comprising the following components: the two steel bar positioning pieces are respectively arranged on the corresponding bearing platform embedded upright steel bars; connect the mounting, connect two the reinforcing bar setting element includes: the two first I-shaped steels arranged in parallel are respectively connected with the two steel bar positioning pieces; and the second I-beams are arranged in parallel and are respectively connected with the two first I-beams.
On the other hand, the embodiment of the invention provides a construction method of a positioning device for embedded upright steel bars of a bearing platform, which comprises the following steps: step S10, excavating corresponding earthwork at the pouring position of the prefabricated bearing platform, and inserting a plurality of steel sheet piles around the earthwork; step S20, excavating the earthwork to obtain a bearing platform substrate of the prefabricated bearing platform, chiseling a plurality of hollow pipe piles into the bearing platform substrate, and then pouring to obtain a bearing platform cushion layer; inserting a tubular pile reinforcement cage into each hollow tubular pile, and pouring the tubular pile; step S30, placing a prefabricated bearing platform steel reinforcement framework on the bearing platform cushion layer; step S40, arranging a prefabricated bearing platform pouring template at the periphery of the prefabricated bearing platform steel reinforcement framework, wherein the inner space of the prefabricated bearing platform pouring template is a prefabricated bearing platform pouring space; and step S50, installing the bearing platform embedded upright post steel bar positioning device on the prefabricated bearing platform steel bar framework, fixedly connecting the bearing platform embedded upright post steel bar positioning device with the prefabricated bearing platform pouring template through a connecting piece, and pouring the prefabricated bearing platform in the prefabricated bearing platform pouring space.
In an embodiment of the present invention, the step S30 specifically includes: step S31, laying bottom layer steel bars on the cushion layer of the bearing platform; and step S32, hanging an upper layer steel reinforcement framework on the bottom layer steel reinforcement, and connecting the upper layer steel reinforcement framework and the bottom layer steel reinforcement to form the prefabricated pile cap steel reinforcement framework. The technical effect achieved after the technical scheme is adopted is as follows: the bottom layer reinforcing steel bars and the upper layer reinforcing steel bar framework form the prefabricated bearing platform reinforcing steel bar framework, the process is simple, and the construction time of the prefabricated bearing platform is shortened.
In an embodiment of the present invention, when the upper framework is hung on the bottom layer of steel bars, the upper framework can be adjusted by the adjusting member until the upper framework is aligned with the bottom layer of steel bars. The technical effect achieved after the technical scheme is adopted is as follows: and ensuring the thickness of the concrete protective layer of the prefabricated bearing platform.
In one embodiment of the invention, the underlying reinforcement includes at least one set of transversely disposed reinforcements and at least one set of longitudinally disposed reinforcements. The technical effect achieved after the technical scheme is adopted is as follows: and increasing the connection strength of the upper-layer steel bar framework and the lower-layer steel bars, thereby ensuring the quality of the prefabricated bearing platform.
In one embodiment of the invention, a plurality of spacers are disposed between the bottom layer of reinforcement and the cushion layer of the cap. The technical effect achieved after the technical scheme is adopted is as follows: the cushion block is used for expanding the bottom layer steel bar bearing surface and enhancing the durability and the tensile capacity of the prefabricated bearing platform.
In an embodiment of the present invention, according to the construction method of a prefabricated pile cap as claimed in claim 1, the step S40 specifically includes: s41, arranging a guide piece around the cushion layer of the bearing platform; and S42, wrapping the prefabricated pile cap template with the prefabricated pile cap reinforcement cage along the guide piece. The technical effect achieved after the technical scheme is adopted is as follows: the guide piece helps the prefabricated cushion cap template to accurately reach a preset position to wrap the prefabricated cushion cap steel reinforcement framework.
In an embodiment of the present invention, in step S50, the casting process is layered one-time casting, and the casting process is performed at different positions by vibration, so as to obtain the prefabricated platform. The technical effect achieved after the technical scheme is adopted is as follows: the quality of the prefabricated bearing platform is ensured while the pouring time is shortened.
In one embodiment of the invention, a support is provided on the steel sheet pile. The technical effect achieved after the technical scheme is adopted is as follows: and the stability of the steel sheet pile is improved.
In summary, the above embodiments of the present application may have the following beneficial effects: be equipped with on the pre-buried stand bar positioning device of cushion cap connect mounting and two the steel bar setting element has realized the accurate positioning to the pre-buried stand bar of cushion cap, can guarantee that the straightness that hangs down after the pre-buried steel bar location meets the demands.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a positioning device 100 for embedded upright steel bars of a bearing platform according to a first embodiment of the present invention;
fig. 2 is a schematic flow chart of a construction method of a positioning device 100 for embedded upright steel bars of a bearing platform according to a second embodiment of the present invention;
fig. 3 is a schematic positional relationship diagram of the steel sheet pile 110 and the support 111 obtained by implementing step S10 in fig. 2;
fig. 4 is a schematic diagram of the position relationship between the cushion layer 120 of the bearing platform and the hollow pipe pile 130 obtained by implementing the step S20 in fig. 2;
fig. 5 is a schematic diagram of a positional relationship between the hollow pipe pile 130 and the reinforcement cage 131 obtained by implementing the step S20 in fig. 2;
fig. 6 is a schematic structural view of the reinforcement cage 131 in fig. 5;
fig. 7 is a schematic structural diagram of the bottom-layer steel bar 140 obtained in step S31 according to the embodiment of the present invention;
fig. 8 is a schematic diagram illustrating a positional relationship between the bottom-layer steel bars 140 and the spacers 141 according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of the spacer 141 of FIG. 8;
fig. 10 is a schematic structural diagram of the prefabricated pile cap reinforcement cage 150 obtained by implementing step S30 in fig. 2;
fig. 11 is a schematic structural view of the prefabricated pile cap steel reinforcement cage 150 in fig. 10;
fig. 12 is a schematic position diagram of the prefabricated pile cap reinforcement cage 150 and the prefabricated pile cap casting formwork 160 obtained by implementing step S40 in fig. 2;
fig. 13 is a schematic positional relationship diagram of the positioning device 100 for the embedded pillar reinforcement of the bearing platform, the steel sheet pile 110, the supporting member 111, the pouring formwork 160 for the prefabricated bearing platform and the positioning member 170 obtained by implementing the step S50 in fig. 2;
fig. 14 is a schematic view of a position relationship between the positioning device 100 for pre-buried upright steel bars of the bearing platform and the prefabricated bearing platform 200 obtained by implementing the step S50 in fig. 2;
fig. 15 is a position relationship diagram of the reinforcement positioning element 10, the bearing platform embedded column reinforcement 151 and the prefabricated bearing platform 200 in fig. 14;
description of the main element symbols:
200 is a bearing platform; 110 is a steel sheet pile; 111 is a support member; 120 is a cushion layer of the bearing platform; 130 is a hollow pipe pile; 131 is a tubular pile cage; 140 is bottom layer steel bar; 141 is a cushion block; 150 is a prefabricated bearing platform steel reinforcement framework; 151 is pre-buried upright post steel bars of the bearing platform; 152 is bottom layer steel bar connecting steel bar; 160, pouring a template for the prefabricated bearing platform; 170 is a connecting piece;
100 is a pile cap embedded column steel bar positioning device; 10 is a reinforcing steel bar positioning piece; and 20 is a connecting fixing piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, which is a schematic structural diagram of a positioning device 100 for embedded columns of a bearing platform according to an embodiment of the present invention, the positioning device 100 for embedded columns of a bearing platform includes: two rebar locating pieces 10 and a connecting fixture. Wherein, the two steel bar positioning pieces 10 are respectively connected with the bearing platform embedded column steel bars 151 (see fig. 15); the connecting and fixing member connects the two reinforcing bar positioning members 10.
Specifically, the connection fixing member includes, for example: two first i-beams 20 arranged in parallel and a plurality of second i-beams 30 arranged in parallel. Wherein, the two first I-shaped steels 20 are respectively connected with the two reinforcing steel bar positioning pieces 10; the plurality of second i-beams 30 are respectively connected to the two first i-beams 20.
Preferably, the connection fixing member further includes, for example: a plurality of third I-shaped steels 40 arranged in parallel in double rows, two steel rods 50 arranged in parallel, and a plurality of fourth I-shaped steels 60 arranged in parallel. Wherein, each row of a plurality of third I-beams 40 arranged in parallel in double rows is respectively connected with different first I-beams 20; the two parallel steel rods 50 are respectively connected with a plurality of third I-shaped steels 40 in different rows; a plurality of fourth i-shaped steels 60 arranged in parallel are respectively connected with the two steel rods 50.
For example, the steel bar positioning piece 10 is provided with a plurality of vertical positioning holes, so that the verticality of the bearing platform embedded column steel bars 151 passing through the positioning holes can meet the requirement; when the bearing platform embedded upright post steel bar positioning device 100 is installed, the positioning holes and the bearing platform embedded upright post steel bars 151 are installed in a one-to-one correspondence manner; the intervals among the positioning holes are the same, so that the phenomena of embedded steel bar deviation and the like of the bearing platform embedded upright post steel bars 151 penetrating through the positioning holes can be avoided; and, carry out level and vertical adjustment to cushion cap embedded column reinforcing bar positioner 100 through adjustment mechanism such as jack, can ensure that the embedded reinforcing bar position of location is accurate. The connecting fixture 20 and the plurality of reinforcing bar positioning members 10 may be non-detachably connected by welding or the like, or detachably connected by bolts or the like.
[ second embodiment ]
Referring to fig. 1, which is a schematic flow chart of a construction method of a prefabricated bearing platform according to an embodiment of the present invention, the construction method of the prefabricated bearing platform includes:
step S10, excavating corresponding earthwork at the pouring position of the prefabricated bearing platform, and inserting a plurality of steel sheet piles around the earthwork;
step S20, excavating the earthwork to obtain a bearing platform substrate of the prefabricated bearing platform, chiseling a plurality of hollow pipe piles into the bearing platform substrate, and then pouring to obtain a bearing platform cushion layer; inserting a tubular pile reinforcement cage into each hollow tubular pile, and pouring the tubular pile;
step S30, placing a prefabricated bearing platform steel reinforcement framework on the bearing platform cushion layer;
step S40, arranging a prefabricated bearing platform pouring template at the periphery of the prefabricated bearing platform steel reinforcement framework, wherein the inner space of the prefabricated bearing platform pouring template is a prefabricated bearing platform pouring space;
and step S50, installing the bearing platform embedded upright post steel bar positioning device on the prefabricated bearing platform steel bar framework, fixedly connecting the bearing platform embedded upright post steel bar positioning device with the prefabricated bearing platform pouring template through a connecting piece, and pouring the prefabricated bearing platform in the prefabricated bearing platform pouring space.
The process of the assembling method of the detachable construction material storage device will be described in detail with reference to fig. 2 to 15, specifically:
firstly, excavating corresponding earthwork at a pouring position of a prefabricated bearing platform, and inserting a plurality of steel sheet piles 110 around the earthwork; preferably, a support 111 is provided on the steel sheet pile 110. For example, a girder is welded on the steel sheet pile 110, the support 111 is placed on the girder, and the support 111 is fixedly connected with the steel sheet pile 110.
Then, after excavating the earthwork to the position of the base of the prefabricated bearing platform, chiseling a plurality of hollow tubular piles 130 at the position of the base of the bearing platform, vertically arranging a template of a cushion layer of the bearing platform, and pouring to obtain a cushion layer 120 of the bearing platform; a tubular pile cage 131 is inserted into each hollow tubular pile 130, and the position of the tubular pile cage 131 is adjusted to perform tubular pile casting. Preferably, the hollow pipe pile 130 and the prefabricated cap base are cleaned after the hollow pipe pile 130 is dug and the cap cushion 120 is poured. For example, the hollow pipe pile 130 is cleaned by a high pressure water gun, and then filled with the pipe pile cage 131 by a crane, the position of the pipe pile cage 131 is adjusted, and then the U-shaped steel bar is inserted under the reinforcing hoop of the cage, and the U-shaped steel bar frame suspends the pipe pile cage 131 on the top of the hollow pipe pile 130, and then filled concrete is poured by a small hopper or a pump, and vibrated.
Then, placing the bearing platform steel reinforcement framework on the bearing platform cushion layer 120; specifically, step S30 includes, for example: step S31, laying bottom layer steel bars 140 on the cushion layer 120 of the bearing platform; and step S32, hanging an upper layer steel reinforcement framework 150 on the bottom layer steel reinforcement 140, and connecting the upper layer steel reinforcement framework 150 with the bottom layer steel reinforcement 140 to form the prefabricated pile cap steel reinforcement framework. Wherein, the bottom layer steel bar 140 has at least one group of steel bars laid transversely and one group of steel bars laid longitudinally, which increases the connection strength between the upper layer steel bar framework 150 and the lower layer steel bar 140, thereby ensuring the quality of the prefabricated bearing platform 200; preferably, step S30 further includes, for example: a plurality of spacers 141 are disposed between the bottom reinforcing bars 140 and the cushion layer 120 of the cap to enlarge the bearing area of the bottom reinforcing bars 140 and enhance the durability and tensile strength of the prefabricated cap 200.
For example, after the bottom layer steel bars 140 are laid, the cushion blocks 141 are installed, the upper layer steel bar framework 150 is hung above the bottom layer steel bars 140 through a crane, the total station is adopted to observe the position of the upper layer steel bar framework 150, the upper layer steel bar framework 150 is adjusted through a jack, and after the adjustment is completed, the bottom 152 of the upper layer steel bar framework is welded with the bottom layer steel bars 140.
Secondly, a prefabricated bearing platform pouring template 160 is arranged on the periphery of the prefabricated bearing platform steel reinforcement framework, and the inner space of the prefabricated bearing platform pouring template 160 is a prefabricated bearing platform pouring space. Specifically, step S40 includes, for example: s41, providing a guide member around the cushion 120; and S42, wrapping the prefabricated bearing platform template 160 on the prefabricated bearing platform steel reinforcement framework along the guide piece.
Preferably, step S40 further includes, for example: and step S43, fixedly connecting the prefabricated pile cap template 60, the prefabricated pile cap steel reinforcement framework and the steel sheet pile 10. For example, a 'three-section type' screw is installed on the prefabricated bearing platform pouring template 60 and fixedly connected with the prefabricated bearing platform steel reinforcement framework, an outer support is arranged on the outer side of the prefabricated bearing platform pouring template 60 and supported onto the steel sheet pile 10, and the prefabricated bearing platform pouring template 60 and the steel sheet pile 10 are fixedly connected.
Finally, installing the bearing platform embedded upright post steel bar positioning device 100 on the prefabricated bearing platform steel bar framework, fixedly connecting the bearing platform embedded upright post steel bar positioning device 100 with the prefabricated bearing platform pouring template 160 through the connecting piece 170, and pouring the prefabricated bearing platform 200 in the prefabricated bearing platform pouring space. For example, the connecting member 170 may be a connecting steel rod, the cushion cap embedded pillar reinforcement positioning device 100 is fixedly connected with the prefabricated cushion cap pouring template 160 by four connecting levers, the reinforcement positioning member 10 is wrapped by geotextile, the cushion cap concrete is poured by pumping, and layered one-time pouring is completed; uniformly vibrating by using a vibrating rod in the pouring process; and grinding the concrete for multiple times after pouring is finished, and then covering the geotextile for watering and curing.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a pre-buried stand reinforcing bar positioner of cushion cap, sets up on the cushion cap, the cushion cap includes the pre-buried stand reinforcing bar of cushion cap, its characterized in that, the pre-buried stand reinforcing bar positioner of cushion cap includes:
the two steel bar positioning pieces are respectively arranged on the corresponding bearing platform embedded upright steel bars;
connect the mounting, connect two the reinforcing bar setting element includes:
the two first I-shaped steels arranged in parallel are respectively connected with the two steel bar positioning pieces;
and the second I-beams are arranged in parallel and are respectively connected with the two first I-beams.
2. A construction method of the device for positioning the embedded stand column steel bars of the bearing platform is characterized in that the device for positioning the embedded stand column steel bars of the bearing platform according to claim 1 is used, and specifically comprises the following steps:
step S10, excavating corresponding earthwork at the pouring position of the prefabricated bearing platform, and inserting a plurality of steel sheet piles around the earthwork;
step S20, excavating the earthwork to obtain a bearing platform substrate of the prefabricated bearing platform, chiseling a plurality of hollow pipe piles into the bearing platform substrate, and then pouring to obtain a bearing platform cushion layer; inserting a tubular pile reinforcement cage into each hollow tubular pile, and pouring the tubular pile;
step S30, placing a prefabricated bearing platform steel reinforcement framework on the bearing platform cushion layer;
step S40, arranging a prefabricated bearing platform pouring template at the periphery of the prefabricated bearing platform steel reinforcement framework, wherein the inner space of the prefabricated bearing platform pouring template is a prefabricated bearing platform pouring space;
and step S50, installing the bearing platform embedded upright post steel bar positioning device on the prefabricated bearing platform steel bar framework, fixedly connecting the bearing platform embedded upright post steel bar positioning device with the prefabricated bearing platform pouring template through a connecting piece, and pouring the prefabricated bearing platform in the prefabricated bearing platform pouring space.
3. The construction method of the positioning device for the embedded upright steel bars of the bearing platform according to claim 2, wherein the step S10 further comprises:
and S11, arranging a support on the steel sheet pile.
4. The construction method of the positioning device for the embedded upright steel bars of the bearing platform according to claim 2, wherein the step S30 specifically comprises the following steps:
step S31, laying bottom layer steel bars on the cushion layer of the bearing platform;
and step S32, hanging an upper layer steel reinforcement framework on the bottom layer steel reinforcement, and connecting the upper layer steel reinforcement framework and the bottom layer steel reinforcement to form the prefabricated pile cap steel reinforcement framework.
5. The construction method of the bearing platform embedded column steel bar positioning device according to claim 4, wherein when the upper-layer steel bar framework is hung on the bottom-layer steel bars, the upper-layer steel bar framework can be adjusted through the adjusting piece until the upper-layer steel bar framework is aligned with the bottom-layer steel bars.
6. The construction method of the device for positioning the reinforcing steel bars of the embedded stand columns of the bearing platform as claimed in claim 4, wherein the bottom layer reinforcing steel bars have at least one group of transversely-laid reinforcing steel bars and at least one group of longitudinally-laid reinforcing steel bars.
7. The construction method of the device for positioning the embedded upright post steel bars of the bearing platform according to claim 4, wherein a plurality of cushion blocks are arranged between the bottom steel bars and the bearing platform cushion layer.
8. The construction method of the positioning device for the embedded upright steel bars of the bearing platform according to claim 2, wherein the step S40 specifically comprises the following steps:
s41, arranging a guide piece around the cushion layer of the bearing platform;
and S42, wrapping the prefabricated pile cap template with the prefabricated pile cap reinforcement cage along the guide piece.
9. The construction method of the positioning device for the embedded upright steel bars of the bearing platform according to claim 8, wherein the step S40 further comprises:
and step S43, fixedly connecting the prefabricated pile cap template, the prefabricated pile cap steel reinforcement framework and the steel sheet pile.
10. The construction method of the pre-buried stand column steel bar positioning device of the bearing platform according to claim 2, wherein in the step S50, the pouring process is layered one-time pouring, and the pouring process is vibrated at different positions, so that the prefabricated bearing platform is finally obtained.
CN202110224084.7A 2021-03-01 2021-03-01 Pile cap embedded upright post steel bar positioning device and construction method thereof Pending CN113073553A (en)

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