CN211171631U - System for pre-pressing large-scale beam support through multi-point anchoring and stretching method - Google Patents
System for pre-pressing large-scale beam support through multi-point anchoring and stretching method Download PDFInfo
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- CN211171631U CN211171631U CN201921312954.0U CN201921312954U CN211171631U CN 211171631 U CN211171631 U CN 211171631U CN 201921312954 U CN201921312954 U CN 201921312954U CN 211171631 U CN211171631 U CN 211171631U
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Abstract
The utility model discloses a system for prepressing a large-scale beam bracket by a multipoint anchoring and stretching method; the operation comprises the following steps: (1) arranging an anchoring system; (2) mounting a bracket and arranging a tensioning system; (3) and (5) tensioning the inspection bracket. Through the utility model discloses an implement: (1) the support is inspected by the anchoring and stretching method, so that a large amount of prepressed materials do not need to be prepared, and the materials do not need to be hoisted for a long time; (2) the anchoring and stretching method can perform prepressing inspection on the bracket before the bracket main body is erected, and prepressing is not required after all the brackets are erected, so that the working efficiency can be improved, and the construction period can be shortened; (3) compared with the method that real object prepressing is adopted to count the weight, the tensile stress is controlled by utilizing the reading of a jack oil meter, and the prepressing precision is high; (4) the multi-point anchoring and stretching method is simple and convenient to operate, and reduces the safety risk which may occur due to the vertical hoisting of the pre-pressed material.
Description
Technical Field
The utility model relates to a civil engineering field, particularly, relate to a system that large-scale crossbeam support carries out the pre-compaction through multiple spot anchor stretching method.
Background
At present, a method for prepressing a large-scale beam support in China generally adopts a real object, the method mainly needs to transport more real objects, and needs to hoist the support for multiple times for stacking and prepressing, the material consumption is large, the hoisting time is long, the effect is low, the prepressing method by using an anchoring stretching method is greatly improved in effect, the time is greatly shortened, and the stress is more definite. Particularly, the higher the pier stud, the heavier the beam can embody the utilization value of the pier stud.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a system for prepressing a large-scale beam bracket by a multipoint anchoring and stretching method and an operation method thereof; the support is anchored through the lower part of the support, and the jack is used for tensioning, so that the hoisting time of the real object prepressing and the situation that the real object prepressing weight has errors are reduced, the stability of the support is checked, and the inelastic deformation of the support is eliminated.
The utility model is realized in such a way that a system for prepressing a large-scale beam bracket by an anchoring and stretching method is constructed, which is characterized in that; the anchoring system is arranged below a large-scale beam support pivot, an anchor bar is manufactured on an embedded plate or bedrock embedded on a bearing platform to provide anchoring counter-tension, a reaction frame is arranged on the embedded plate, a steel strand is fixed with a corresponding main distribution beam, and an anchorage device and a jack are arranged at the anchoring system below the support and are connected with the steel strand.
The utility model provides an operation method that large-scale crossbeam support carries out pre-compaction through multi-point anchor stretching method which characterized in that: the method comprises the following steps:
the method comprises the following steps: arranging an anchoring system: the large-scale beam support is generally divided into a floor type support or a bracket type support, the stress condition of each fulcrum can be obtained through stress analysis of a beam support system, an anchoring system is arranged below each fulcrum, an anchor bar is embedded in a bearing platform or is manufactured on bedrock to provide anchoring counter-tension, a counter-force frame is arranged on the embedded plate, a proper jack is selected according to the stress of the fulcrum to carry out checking, and a steel strand and an anchor corresponding to the jack are prepared;
step two: the support mounting and tensioning system is arranged: erecting a support according to the drawing requirements, when the support is erected to a longitudinal main distribution beam, installing a steel strand to be fixed with the main distribution beam, and installing an anchorage device and a jack by an anchoring system below the support and connecting the anchorage device and the jack with the steel strand;
step three: stretching and testing the bracket: and tensioning the support nodes by using a jack, increasing the tensioning force in stages, observing the deformation condition and the welding line condition of the support, anchoring after the tensioning force reaches a design value, continuously observing the deformation condition of the support, unloading step by step after 24 hours, recording the deformation condition of the support, and calculating the elastic deformation and the inelastic deformation of the support.
The utility model has the advantages of as follows: the utility model discloses a system for prepressing a large-scale beam bracket through multipoint anchoring and tensioning and an operation method; the anchoring system is arranged below a large-scale beam support pivot, an anchor bar is manufactured on an embedded plate or bedrock embedded on a bearing platform to provide anchoring counter-tension, a reaction frame is arranged on the embedded plate, a steel strand is fixed with a corresponding main distribution beam, and an anchorage device and a jack are arranged at the anchoring system below the support and are connected with the steel strand. The operation comprises the following steps: (1) arranging an anchoring system; (2) mounting a bracket and arranging a tensioning system; (3) stretching the test support; in the past, all large-scale beam supports adopt a real object prepressing method, and the method has the problems of long construction period, heavy prepressed real object weight, high safety risk and the like. Through the utility model discloses an implement: (1) the support is inspected by the anchoring and stretching method, so that a large amount of prepressed materials do not need to be prepared, and the materials do not need to be hoisted for a long time; (2) the anchoring and stretching method can perform prepressing inspection on the bracket before the bracket main body is erected, and prepressing is not required after all the brackets are erected, so that the working efficiency can be improved, and the construction period can be shortened; (3) compared with the method that real object prepressing is adopted to count the weight, the tensile stress is controlled by utilizing the reading of a jack oil meter, and the prepressing precision is high; (4) the multi-point anchoring and stretching method is simple and convenient to operate, and reduces the safety risk which may occur due to the vertical hoisting of the pre-pressed material.
Drawings
Fig. 1 is a schematic layout of the anchoring system of the present invention;
fig. 2 is a detailed view of the anchoring end of the present invention.
Wherein: the device comprises an embedded plate 1, a reaction frame 2, a steel strand 3, an anchorage device 4, a jack 5, a supporting leg 6, a support observation and anchoring end 7 and an anchoring and tensioning end 8.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings 1-2, wherein the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
An object of the utility model is to provide a method that large-scale beam support carries out the pre-compaction through the multiple spot anchor stretching method, makes its pre-compaction spent time short, and is efficient, and the atress is clear and definite and can be constructed safely effectively.
The following further explains the embodiments of the present invention with reference to the accompanying drawings 1-2: a system for prepressing a large-scale beam support through an anchoring and stretching method is characterized in that; the method comprises the steps that an anchoring system is arranged below a large-scale beam support fulcrum, an anchor bar is manufactured on an embedded plate or bedrock embedded on a bearing platform to provide anchoring counter-tension, a counter-force frame 2 is arranged on the embedded plate 1, a steel strand 3 is fixed with a corresponding main distribution beam, and an anchorage device 4 and a jack 5 are arranged at the anchoring system below the support and are connected with the steel strand 3.
An operation method for pre-pressing a large-sized cross beam support by a multi-point anchoring and stretching method improves the speed and can be safely and effectively constructed.
The method comprises the following steps: arranging an anchoring system:
the large-scale beam support is generally divided into a floor type support or a bracket type support, the stress condition of each fulcrum can be obtained through stress analysis of a beam support system, an anchoring system is arranged below each fulcrum, an anchor bar is embedded in a bearing platform or is manufactured on bedrock to provide anchoring counter-tension, a counter-force frame 2 is arranged on an embedded plate 1, a proper jack 5 is selected according to the stress of the fulcrum to carry out checking, and a steel strand 3 and an anchorage device 4 corresponding to the jack are prepared;
step two: the support mounting and tensioning system is arranged:
erecting a support according to the drawing requirements, when the support is erected to a longitudinal main distribution beam, installing a steel strand 3 and fixing the steel strand to the main distribution beam, and installing an anchorage device 4 and a jack 5 on an anchoring system below the support and connecting the steel strand 3;
step three: stretching and testing the bracket:
and (3) tensioning the support nodes by using a jack 5, increasing the tensioning force in stages, observing the deformation condition and the welding line condition of the support, anchoring after the tensioning force reaches a design value, continuously observing the deformation condition of the support, unloading step by step after 24 hours, recording the deformation condition of the support, and calculating the elastic deformation and the inelastic deformation of the support.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. A system for prepressing a large-scale beam support through a multi-point anchoring and stretching method is characterized in that the system comprises a frame, a pre-pressing device and a pre-pressing device, wherein the frame is provided with a plurality of pre-pressing holes; the method comprises the steps that an anchoring system is arranged below a large-scale beam support fulcrum, anchor bars are manufactured on an embedded plate or bedrock on a bearing platform to provide anchoring counter-tension, a counter-force frame (2) is arranged on the embedded plate (1), steel strands (3) are fixed with corresponding main distribution beams, and an anchorage device (4) and a jack (5) are arranged at the anchoring system below the support and are connected with the steel strands (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921312954.0U CN211171631U (en) | 2019-08-14 | 2019-08-14 | System for pre-pressing large-scale beam support through multi-point anchoring and stretching method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921312954.0U CN211171631U (en) | 2019-08-14 | 2019-08-14 | System for pre-pressing large-scale beam support through multi-point anchoring and stretching method |
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| CN211171631U true CN211171631U (en) | 2020-08-04 |
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| CN201921312954.0U Active CN211171631U (en) | 2019-08-14 | 2019-08-14 | System for pre-pressing large-scale beam support through multi-point anchoring and stretching method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387829A (en) * | 2019-08-14 | 2019-10-29 | 四川路桥华东建设有限责任公司 | Large-scale transverse beam bracket carries out the system and operating method of precompressed by multi-point-anchoring stretching method |
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2019
- 2019-08-14 CN CN201921312954.0U patent/CN211171631U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387829A (en) * | 2019-08-14 | 2019-10-29 | 四川路桥华东建设有限责任公司 | Large-scale transverse beam bracket carries out the system and operating method of precompressed by multi-point-anchoring stretching method |
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