CN109238606A - A kind of loading detection device and its measuring method suitable for bridge main beam - Google Patents
A kind of loading detection device and its measuring method suitable for bridge main beam Download PDFInfo
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- CN109238606A CN109238606A CN201811223931.2A CN201811223931A CN109238606A CN 109238606 A CN109238606 A CN 109238606A CN 201811223931 A CN201811223931 A CN 201811223931A CN 109238606 A CN109238606 A CN 109238606A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0008—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of bridges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of loading detection devices and its measuring method suitable for bridge main beam, are related to bridge load detecting device technical field.The present invention includes test pile, two auxiliary piles and base stake, test pile, auxiliary pile and base stake are both secured in water, base stake is located at test pile side, test pile top surface is fixedly connected with a jack, jack one end and two auxiliary pile upper surfaces are fixedly connected to a reaction beam, one surface of reaction beam is provided with several load objects, test pile and auxiliary pile week side are fixedly connected to several vibrating string type sensors, test pile and side of several auxiliary pile weeks are provided with a plank platform, the present invention is by the Temporary Piers that are directly finished using rapping as test pile and auxiliary pile, without additionally setting up temporary component, to reduce difficulty of construction, save the construction time, reduce experimentation cost, classification addition I-steel has load convenient, fast, the advantages of strong operability.
Description
Technical field
The present invention relates to bridge load detecting device technical field, specially a kind of loading detection suitable for bridge main beam
Device and its measuring method.
Background technique
Temporary rest pier is a highly important temporary component for the assembly of Rongjiang grand bridge steel truss girder, it is played
Support the effect of the temporary load(ing)s such as steel truss girder self weight and cantilever loop wheel machine.During steel truss erection, with superstructure
Weight is gradually increased, and the counter-force on Temporary Piers is also increasing, therefore Temporary Piers must have certain bearing capacity that could protect
Demonstrate,prove the stabilization and safety during steel truss girder assembly.
For the measuring method of single pile bearing capacity, in engineering frequently with loading device have: ballast platform
Counterforce device, anchor pile beam counterforce device, anchoring pile ballast combine counterforce device, earth anchor counterforce device.Since bridge Temporary Piers are
Operation in water, if it is flat to construct huge ballast to need additionally to set up support system using ballasting platform counterforce device
Platform, difficulty of construction can increase, and considerably increase cost, according to anchor pile beam counterforce device, then hold to the resistance to plucking of anchoring pile
Carrying power has higher requirement.Therefore difficulty of construction is big and to build at high cost be that the technology that solves of those skilled in the art's needs is asked
Topic.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of suitable for the loading detection device of bridge main beam and its survey
Calculation method, the engineering Temporary Piers by directly being finished using rapping solve difficulty of construction as test pile and auxiliary pile
Greatly with build problem at high cost.
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of lotus suitable for bridge main beam
Detection device, including test pile, two auxiliary piles and base stake are carried, the test pile, auxiliary pile and base stake are fixed
Yu Shuizhong, the base stake are located at test pile side；
The test pile top surface is fixedly connected with a jack, and described jack one end and two auxiliary pile upper surfaces are solid
Surely it is connected with a reaction beam, one surface of reaction beam is provided with several load objects；
The test pile and auxiliary pile week side are fixedly connected to several vibrating string type sensors, the vibrating string type sensor
Quantity positioned at test pile week side is four, and the quantity that the vibrating string type sensor is located at auxiliary pile week side is two；
The test pile and side of several auxiliary pile weeks are provided with a plank platform, the plank platform be located at the water surface it
On.
Further, the test pile and side of several auxiliary pile weeks are fixedly connected to several scales, and the plank is flat
One surface of platform is fixedly connected with a dial gauge.
A kind of measuring method suitable for bridge main beam, comprising the following steps:
SS01 prover time；
SS02 is according to x=0.018*9.8*p-0.21 hierarchical loading jack oil pressure parameter, wherein and x is oil pressure meter reading,
P is jack pressure；
SS03 is acquired respectively positioned at the load stress of test pile week side vibrating string type sensor and positioned at auxiliary pile week side
The load stress q of vibrating string type sensor, frequency acquisition are 30 seconds/time；
SS04 obtains test pile and auxiliary pile using the reading of scale on the stake of precision level observation experiment and auxiliary pile
Sedimentation deformation m, it is primary every 30 seconds records；
The sedimentation deformation n for the displacement difference record plank platform that SS05 is generated using dial gauge and base stake；
SS06 classification increases the quantity of load object, that is, increases the load weight of reaction beam, repeat the above steps, when taking each
Between point p and q average value, take the average value of each time point m and n, tabulation of drawing.
Further, the vibrating string type sensor the data obtained is by DATATAKER automatic collection.
Further, the load object is I-steel.
The invention has the following advantages:
It 1, should be suitable for the loading detection device and its measuring method of bridge main beam, by directly being finished using rapping
Engineering pile as test pile and auxiliary pile, without additionally setting up temporary component, to reduce difficulty of construction, when saving construction
Between, and greatly reduce experimentation cost.
2, should suitable for bridge main beam loading detection device and its measuring method, by change load object quantity come into
More existing test method is compared in row classification test, has the advantages that load convenient, fast, strong operability.
3, should suitable for bridge main beam loading detection device and its measuring method, in several ways acquire capacity value with
The data of sedimentation deformation, go average value to draw a diagram, and effectively avoid the error generated in test, improve test data
Reference value is conducive to the capacity value for calculating bridge.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of structural schematic diagram of the loading detection device suitable for bridge main beam of the present invention；
Fig. 2 is the schematic perspective view of Fig. 1；
Fig. 3 is a kind of flow chart of the measuring method of bridge main beam of the present invention；
Fig. 4 is test data line chart；
In attached drawing, parts list represented by the reference numerals are as follows:
In figure: 1- test pile, 2- auxiliary pile, 3- reaction beam, 4- load object, 5- plank platform, 6- vibrating string type sensor, 7-
Scale, 8- jack, 9- dial gauge, 10- base stake.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2: a kind of loading detection device suitable for bridge main beam,
It is both secured in water including 1, two auxiliary pile 2 of test pile and base stake 10, test pile 1, auxiliary pile 2 and base stake 10,
Base stake 10 is located at 1 side of test pile, and auxiliary pile 2 provides the counter-force of resistance to plucking；
1 top surface of test pile is fixedly connected with a jack 8, the fixed company in 8 one end of jack and two 2 upper surfaces of auxiliary pile
It is connected to a reaction beam 3,3 one surface of reaction beam is placed with several load objects 4；Change counter-force by changing the quantity of load object 4
The load weight of beam 3；
2 weeks sides of test pile 1 and auxiliary pile are fixedly connected to several TRC-HB-01A model vibrating string type sensors 6, vibration
The quantity that string type sensor 6 is located at 1 week side of test pile is four, and vibrating string type sensor 6 is located at the quantity of 2 weeks sides of auxiliary pile
It is two；
A plank platform 5 has been built in 2 weeks sides of test pile 1 and several auxiliary piles, and plank platform 5 is located on the water surface.
Wherein, 2 weeks sides of test pile 1 and several auxiliary piles are fixedly connected to several scales 7,5 one surface of plank platform
It is fixedly connected with a dial gauge 9.
Wherein as shown in Figure 3, comprising the following steps:
SS01 prover time guarantees that observation can carry out simultaneously with hierarchical loading load object；
SS02 is according to 8 oil pressure parameter of x=0.018*9.8*p-0.21 hierarchical loading jack, wherein x is oil pressure gauge reading
Number, p is jack pressure；
SS03 acquires the load stress for being located at 1 week side vibrating string type sensor 6 of test pile and respectively positioned at 2 side of auxiliary pile
The load stress q of face vibrating string type sensor 6, frequency acquisition are 30 seconds/time；Vibrating string type sensor 6 is convenient for improving the inspection of capacity value
Survey precision；
SS04 obtains test pile 1 and auxiliary using the reading of scale 7 in precision level observation experiment stake 1 and auxiliary pile 2
The sedimentation deformation m of stake 2, it is primary every 30 seconds records；
The sedimentation deformation n for the displacement difference record plank platform 5 that SS05 is generated using dial gauge 9 and base stake 10；Percentage
Table 9 is conducive to improve the detection accuracy of sedimentation deformation；
SS06 classification increases the quantity of load object 4, that is, increases the load weight of reaction beam 3, repeat the above steps, take each
The average value of time point p and q, take the average value of each time point m and n, draw a diagram.
List data is as follows:
Wherein, Fig. 4 is the data obtained line chart；Figure 4, it is seen that test pile 1 is in load phase and unloading phase
Symmetry it is preferable, two stages are almost in line, thus explanation when being loaded onto 200t, test pile 1 is in elastic working rank
Section, vertical displacement is mainly from flexible deformation, it should be noted that maximum residual displacement is 0.30mm, and residual displacement mainly comes
From temperature change, to further illustrate, test pile 1 there is no sedimentation, can satisfy 200t bearing requirements substantially.
Wherein, 6 the data obtained of vibrating string type sensor is by DATATAKER automatic collection.
Wherein, load object 4 is I-steel.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (5)
1. a kind of loading detection device suitable for bridge main beam, it is characterised in that:
Including test pile (1), two auxiliary piles (2) and base stake (10)；
The test pile (1), auxiliary pile (2) and base stake (10) are both secured in water, and the base stake (10) is located at examination
Test stake (1) side；
Test pile (1) top surface is fixedly connected with a jack (8), on described jack (8) one end and two auxiliary piles (2)
Surface is fixedly connected to a reaction beam (3), and (3) one surface of reaction beam is provided with several load objects (4)；
The test pile (1) and all sides of auxiliary pile (2) are fixedly connected to several vibrating string type sensors (6), the type vibration wire
The quantity that sensor (6) is located at all sides of test pile (1) is four, and the vibrating string type sensor (6) is located at auxiliary pile (2) side
The quantity in face is two；
The test pile (1) and all sides of several auxiliary piles (2) are provided with a plank platform (5), and the plank platform (5) is located at
On the water surface.
2. a kind of loading detection device suitable for bridge main beam according to claim 1, which is characterized in that the test
Stake (1) and all sides of several auxiliary piles (2) are fixedly connected to several scales (7), and (5) one surface of plank platform is fixed to be connected
It is connected to a dial gauge (9).
3. a kind of measuring method suitable for bridge main beam as described in claim 1-2 is any one, which is characterized in that including with
Lower step:
SS01 prover time；
SS02 is according to x=0.018*9.8*p-0.21 hierarchical loading jack (8) oil pressure parameter, wherein x is oil pressure meter reading, p
For jack pressure；
SS03 acquires the load stress for being located at test pile (1) all side vibrating string type sensors (6) respectively and is located at auxiliary pile (2) week
The load stress q of side vibrating string type sensor (6), frequency acquisition are 30 seconds/time；
SS04 using scale (7) on precision level observation experiment stake (1) and auxiliary pile (2) reading, obtain test pile (1) and
The sedimentation deformation m of auxiliary pile (2), it is primary every 30 seconds records；
The sedimentation deformation n for displacement difference record plank platform (5) that SS05 is generated using dial gauge (9) and base stake (10)；
SS06 classification increases the quantity of load object (4), that is, increases the load weight of reaction beam (3), repeat the above steps, take each
The average value of time point p and q, take the average value of each time point m and n, draw a diagram.
4. a kind of measuring method suitable for bridge main beam according to claim 3, which is characterized in that the type vibration wire passes
Sensor (6) the data obtained is by DATATAKER automatic collection.
5. a kind of measuring method suitable for bridge main beam according to claim 3, which is characterized in that the load object
It (4) is I-steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811223931.2A CN109238606A (en) | 2018-10-19 | 2018-10-19 | A kind of loading detection device and its measuring method suitable for bridge main beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811223931.2A CN109238606A (en) | 2018-10-19 | 2018-10-19 | A kind of loading detection device and its measuring method suitable for bridge main beam |
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| CN109238606A true CN109238606A (en) | 2019-01-18 |
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| CN201811223931.2A Pending CN109238606A (en) | 2018-10-19 | 2018-10-19 | A kind of loading detection device and its measuring method suitable for bridge main beam |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827373A (en) * | 2020-07-10 | 2020-10-27 | 广东省建设工程质量安全检测总站有限公司 | Remote detection system for static load test |
| CN113390733A (en) * | 2021-05-07 | 2021-09-14 | 河海大学 | Bridge column pile soaking section critical dynamic load damage experimental device and method |
| CN115324125A (en) * | 2022-08-12 | 2022-11-11 | 祁夕 | Internet-based detection device and method for construction engineering |
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| CN201122142Y (en) * | 2007-12-13 | 2008-09-24 | 中铁二局股份有限公司 | 32m/900t prestressed concrete pretensioned box beam static load testing bench seat |
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| CN209230900U (en) * | 2018-10-19 | 2019-08-09 | 佛山科学技术学院 | A kind of loading detection device suitable for bridge main beam |
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Patent Citations (4)
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| JPH0719973A (en) * | 1993-06-29 | 1995-01-20 | Chiyoda Corp | Load test device for pile concurrently with reaction pile and load test method |
| CN201122142Y (en) * | 2007-12-13 | 2008-09-24 | 中铁二局股份有限公司 | 32m/900t prestressed concrete pretensioned box beam static load testing bench seat |
| CN103711152A (en) * | 2013-12-17 | 2014-04-09 | 河海大学 | Loading monitoring device and loading monitoring method for X-shaped model pile |
| CN209230900U (en) * | 2018-10-19 | 2019-08-09 | 佛山科学技术学院 | A kind of loading detection device suitable for bridge main beam |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827373A (en) * | 2020-07-10 | 2020-10-27 | 广东省建设工程质量安全检测总站有限公司 | Remote detection system for static load test |
| CN111827373B (en) * | 2020-07-10 | 2022-02-08 | 广东省建设工程质量安全检测总站有限公司 | Remote detection system for static load test |
| CN113390733A (en) * | 2021-05-07 | 2021-09-14 | 河海大学 | Bridge column pile soaking section critical dynamic load damage experimental device and method |
| CN115324125A (en) * | 2022-08-12 | 2022-11-11 | 祁夕 | Internet-based detection device and method for construction engineering |
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