CN111811949A - Portable railing horizontal thrust detection device and implementation method thereof - Google Patents
Portable railing horizontal thrust detection device and implementation method thereof Download PDFInfo
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- CN111811949A CN111811949A CN202010757208.3A CN202010757208A CN111811949A CN 111811949 A CN111811949 A CN 111811949A CN 202010757208 A CN202010757208 A CN 202010757208A CN 111811949 A CN111811949 A CN 111811949A
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- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 59
- 239000010959 steel Substances 0.000 claims abstract description 59
- 238000012360 testing method Methods 0.000 claims abstract description 26
- 238000004873 anchoring Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000005571 horizontal transmission Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000003756 stirring Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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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
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
Abstract
The invention discloses a portable railing horizontal thrust detection device and an implementation method, wherein the device mainly comprises a height-adjustable triangular support frame, a height-adjustable flange sleeve, an anchoring clamp, a flexible steel wire rope, a steel wire rope tightener, a horizontal force transmission ejector rod, a portable hydraulic jack and a dynamometer; the invention provides a novel anchor rod which is simple in structure and stress principle and convenient in force transmission and anchoring. The device has the advantages of adjustable loading height, foldable support frame, small volume and weight, convenient installation, disassembly and carrying, suitability for horizontal thrust test of railings in the field of building engineering and bridge engineering, and multiple application occasions.
Description
The technical field is as follows:
the invention relates to the technical field of detection of performance of railing components in the field of bridge engineering and constructional engineering, in particular to a portable railing horizontal thrust detection device capable of being installed quickly and a related implementation method thereof.
Background art:
with the rapid growth of economy and the increasing development of urban construction, the construction of structures in the fields of constructional engineering and municipal engineering is rapidly growing in order to meet the living and traveling demands of urban residents; the structures including corridors of various public buildings and facilities, balconies of houses, pedestrian overpasses and the like need to be provided with safety protection structures such as handrails, handrails and the like, and the purpose of the structures is to meet certain aesthetic requirements and ensure the personal safety of users; therefore, the design and installation of the protective barrier should meet the relevant mechanical property detection indexes so as to meet the use requirements of firmness and safety.
The national housing of people's republic of China and urban and rural construction department in 2018 publishes balustrade stairs and handrails JG/T558-2018 to replace residential stairs, balustrades and handrails 1992 published in 1992, and detailed regulations are provided for general requirements, test methods and detection rules of the balustrades and handrails of civil buildings; however, the technical specification of urban pedestrian overpass and pedestrian underpass in China CJJ69-95 only stipulates the horizontal thrust and vertical load in the design process of the railings, and a corresponding specification for the bearing capacity test and detection method of the overpass railings is lacked.
The conventional method mainly comprises: 1, a test is carried out by adopting a mode of erecting a portal frame and arranging a weight block for load conversion by using seamless steel pipes, which is labor-consuming and time-consuming and has low applicability; 2, existing wall bodies are used as reaction walls to provide reaction supports for the horizontal thrust devices, and corresponding reaction frames are arranged to keep balance, such as patents CN105699188A, CN108535007A, CN207133118U and CN 108562430A; the test device involved in the method is complex and poor in portability, and is not suitable for various occasions without wall supportable, such as most balcony railings, railings of pedestrian overpasses and the like; the loading fixing frame described in CN108303247A lacks an existing rear anchoring system, and has difficulty in implementation.
The invention content is as follows:
in order to solve the problems, the invention provides a portable railing horizontal thrust detection device capable of being quickly installed and an implementation method thereof, and solves the problems that a currently common test device is restricted by a field in the implementation process, and the application and popularization are not facilitated due to the fact that a loading device is difficult to carry due to heavy weight.
In order to solve the technical problems, the technical scheme adopted by the railing horizontal thrust detection device is as follows: the force application and force measurement system comprises a foldable support frame, a portable anchor pulling system, a small portable hydraulic jack and a wireless electronic force measurement instrument, can meet the requirements of convenience in loading and unloading, accurate and controllable force application, portability and good economical efficiency, is suitable for safety detection of horizontal thrust resistance of railings in the fields of building engineering, bridge engineering and the like, and has high universality.
The invention discloses a portable railing horizontal thrust detection device which is characterized by at least comprising a height-adjustable triangular support frame, a horizontal force transmission ejector rod, a portable hydraulic jack and a dynamometer, wherein the height-adjustable triangular support frame is arranged on a bridge body or a floor slab;
the height-adjustable triangular support frame comprises a vertical support rod, a horizontal rod, an inclined support rod, an external threaded steel pipe arranged at the top of the vertical support rod and a height-adjusting flange sleeve screwed on the external threaded steel pipe; the vertical supporting rod, the horizontal rod and the inclined supporting rod are fixedly connected with the through screw rod through pi-shaped fixing pieces on the rod pieces;
the height adjusting flange sleeve comprises a lower limiting flange and an upper limiting ring which are used for clamping and fixing the first end of the horizontal force transmission ejector rod, so that the height adjusting flange sleeve can be prevented from running or sliding off in the load application process;
the horizontal transmission ejector rod second end is opposite to the side face of the handrail positioned on the bridge body or the floor slab, a portable hydraulic jack and a digital display type wireless dynamometer are arranged between the horizontal transmission ejector rod second end and the side face of the handrail, the portable hydraulic jack is loaded by a manual hydraulic pump, and the size of the load is controlled in real time through the digital display type wireless dynamometer connected with the portable hydraulic jack.
Furthermore, the below of the handrail is connected with a handrail upright post arranged on the bridge or the floor, the lower part of the handrail upright post is fixedly provided with a steel anchoring clamp, a flexible steel wire rope is arranged between the lower limiting flange and the steel anchoring clamp, and the middle section of the flexible steel wire rope is provided with a steel wire rope tightness adjusting buckle.
Furthermore, on the trompil otic placode that sets up on the spacing flange was fixed in down to above-mentioned flexible wire rope's one end, the other end was fixed in the preformed hole of anchor clamps, and its length is buckled through the wire rope elasticity regulation that sets up on it to flexible wire rope for every anchor clamps of fixed flexible wire rope all contain two splint that are buckled and form by the steel sheet, and splint pass through the screw rod and adjust its elasticity, be provided with the rubber gasket between splint and the railing stand, avoid loading in-process splint to damage the railing stand again when preventing that splint from sliding.
Furthermore, a force transmission base plate is arranged between the dynamometer and the handrail, so that the handrail is prevented from generating local deformation in the loading process, and the horizontal force applied by the portable hydraulic jack is transmitted to the triangular vertical support frame and the obliquely arranged flexible steel wire rope through the horizontal force transmission ejector rod.
Furthermore, the perforated ear plates arranged on the lower limiting flange of the height adjusting flange sleeve are arranged in a quincunx shape on the plane, so that the problem that flexible steel wire ropes are inconvenient to anchor due to flange adjustment in the loading process of railings with different heights is solved.
Furthermore, four corners of the height-adjustable triangular support frame are provided with four height adjusting nuts, the adjusting nuts are used for adjusting the verticality of the vertical supporting component of the support frame, and the loading error is reduced.
The invention discloses an implementation method of a portable railing horizontal thrust detection device, which is characterized by comprising the following steps:
step 101: opening the triangular support frame, placing the triangular support frame on a floor slab or a deck of an overbridge, putting down the horizontal rods and the inclined support rods, connecting the horizontal rods and the inclined support rods to the vertical rod pieces through the opposite penetrating screw rods, preliminarily adjusting the horizontal position between the triangular support frame and the handrail after the connection is finished,
step 102: adjusting height adjusting screws arranged on four corners of the triangular support frame, adjusting the verticality of the triangular support frame in the vertical plane direction in an auxiliary manner through a level gauge, and rotating the loading height required by the height adjusting flange sleeve according to the height of the handrail;
step 103: installing an anchoring clamp at the bottom of the railing upright post, installing a flexible steel wire rope, and pre-tightening the steel wire ropes on two sides through a steel wire rope tightener;
step 104: installing a horizontal force transmission ejector rod, a hydraulic jack, a dynamometer and a base plate, preliminarily applying load through an oil pump of the manual hydraulic jack, and fixing a force application device;
step 105: and installing a deformation testing instrument required by the test detection, performing a first-closing loading test and a test according to the test requirements and the test process of the regulations, and judging the horizontal load resistance of the tested railing according to the test result.
The railing horizontal thrust detection device not only can detect the railings and handrails arranged in corridors of various public buildings and facilities, balconies of houses, stairs and the like in the field of constructional engineering, but also is suitable for detecting the railings and handrails arranged in pedestrian overpasses, bridge sidewalks and the like in the field of bridge engineering. The device has simple structure and principle, simple and convenient implementation method, and is easy to master and apply by test detection personnel.
The beneficial effects and advantages of the invention mainly include the following: 1, the problem of difficult loading when no wall body is used as a counterforce device during force application is solved; 2, the problems that the equipment is difficult to go upstairs and is difficult to carry because heavy objects are adopted for stacking in the prior art are solved; 3, the structure is simple, the use is convenient, the horizontal load applied by the portable hydraulic jack is adopted, the magnitude of the applied load is controlled in real time through the digital display type wireless dynamometer, and the magnitude of the applied load is accurate and controllable; 4, force transmission and anchoring are realized through a flexible steel wire rope and a steel anchoring clamp, the loading efficiency is high, and the device is light and easy to carry; 5 this device support frame is collapsible and height-adjustable structure, can adapt to the not detection of co-altitude railing, and simple structure can realize quick installation, dismantlement and carry, practices thrift manpower and materials.
In order to more clearly illustrate the technical solution of the present invention, the drawings needed in the embodiments are briefly described below, the following drawings only illustrate some embodiments of the present invention and do not limit the scope of the present invention, and those skilled in the art can also use these drawings to obtain other related drawings without creative efforts.
Description of the drawings:
FIG. 1 is a schematic front view of the portable railing horizontal thrust detection device of the present invention;
FIG. 2 is a schematic top view of the portable railing horizontal thrust detection device of the present invention;
FIG. 3 is a schematic front view of a triangular support frame of the portable railing horizontal thrust detecting device of the present invention;
FIG. 4 is a three-view illustration of a pi fastener;
FIG. 5 is a three-dimensional view of a horizontal force transfer ram;
FIG. 6 is a schematic cross-sectional configuration of a steel anchor clamp connecting rail post;
FIG. 7 is a three-dimensional view of a steel anchor clip;
reference is made to the accompanying drawings in which: 1. a vertical support bar; 2. a horizontal bar; 3. a diagonal brace; 4. a height adjustment flange bushing; 5. an externally threaded steel pipe; 6. a horizontal force transmission ejector rod; 7. a portable hydraulic jack; 8. a force gauge; 9. a portable manual hydraulic pump; 10. a flexible wire rope; 11. the tightness of the steel wire rope is adjusted and buckled; 12. a lower limiting flange; 13. an upper limiting ring; 14. a first height adjustment arm brace screw; 15. a second height adjustment screw; 16. a second height adjusting screw cushion block; 17. a steel anchoring clamp; 18. anchoring the clamp bolt; 19. a pi-shaped fixing member; 20. a horizontal connecting rod; 21. a rubber gasket; 100. a bridge or floor; 101. a railing post; 102. a balustrade handrail.
The specific implementation mode is as follows:
in order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings.
The portable railing horizontal thrust detection device shown in fig. 1 mainly comprises several parts: 1 height-adjustable's triangle-shaped support frame, 2 height-adjusting flange sleeve pipes, 3 anchor systems: steel sheet anchor, flexible wire rope and wire rope elasticity ware, 4 horizontal biography power and force application system: horizontal power transmission ejector rod, portable hydraulic jack, dynamometer.
According to the implementation method of the portable railing horizontal thrust detection device, the horizontal load applied by the portable hydraulic jack 7 is controlled in real time through the digital display type wireless dynamometer 8, the anchoring force transmission is realized through the flexible steel wire rope 10, the loading efficiency is high, the load size is easy to control, and the device is light and easy to carry. The implementation method and the process are as follows:
step 101: the triangular support frame is opened and placed on a floor slab or a bridge deck 100 of a platform bridge, the horizontal rods 2 and the inclined stay rods 3 are put down, the inclined stay rods 3 are connected to the pi-shaped connecting pieces 19 of the vertical rod pieces 1 through bolts, and after connection is completed, the horizontal position between the vertical support frame and the handrail is adjusted.
Step 102: the height adjusting screws of the first height adjusting arm bolt 14 and the second height adjusting screw 15 arranged at the four corners of the support frame are adjusted, the verticality of the support frame in the vertical surface direction is adjusted in an auxiliary mode through the level gauge, and the loading height required by the height adjusting flange sleeve 4 is rotated according to the height of the handrail.
Step 103: the steel anchoring clamp 17 is fixedly arranged at the bottom of the railing post 101 through the anchoring clamp bolt 18, the rubber gasket 21 is wrapped and protected at the bottom of the railing in advance before the clamps are buckled, and the anchoring clamp bolt 17 is screwed down to finish the fixing operation; and loosening the steel wire rope tightener adjusting buckles 11, respectively installing and fixing the two ends of the flexible steel wire rope 10 in the preformed holes of the perforated ear plates arranged on the lower limiting flange 12 in the steel anchoring clamp 17 and the height adjusting flange sleeve, and pre-tightening the steel wire ropes on the two sides through the steel wire rope tightener adjusting buckles after the fixation is finished.
Step 104: installing a horizontal force transmission and application device: install level biography power ejector pin 6, hydraulic jack 7, dynamometer 8 and dynamometer and railing handrail between additional biography power backing plate in proper order, stir the handle of portable hydraulic jack oil pump 9, through manual formula hydraulic jack's oil pump preliminary load of exerting, the application of force is fixed the device well.
Step 105: and installing a deformation testing instrument required by the test detection, performing a first-closing loading test and a test according to the test requirements and the test process of the regulations, and judging the horizontal load resistance of the tested railing according to the test result.
In the implementation process, the portable railing horizontal thrust detection device applies load through the portable hydraulic jack and the manual hydraulic pump, and controls the magnitude of the applied load in real time through the digital display type wireless dynamometer connected with the portable railing horizontal thrust detection device; the force transmission base plate is arranged between the dynamometer and the handrail, and applied load is uniformly diffused to the handrail so as to avoid local deformation of the handrail caused by local load transmitted by the dynamometer in the loading process.
The portable hydraulic jack is characterized in that a horizontal force applied by the portable hydraulic jack is transmitted to the triangular vertical support frame and the obliquely arranged anchoring steel wire rope through the horizontal force transmission ejector rod, the upper end of the flexible steel wire rope is fixed on a lower limiting flange on the upper portion of the support frame or an opening ear plate arranged on an upper limiting ring, the lower end of the flexible steel wire rope is fixed on a pull buckle arranged on a preformed hole of the anchoring fixture, and the length and the tightness of the flexible steel wire rope are adjusted through a steel wire rope tightness adjusting buckle arranged on the flexible steel wire.
A steel anchor clamps 17 for fixing flexible wire rope lower extreme, every anchor clamps are buckled the prefabricated splint that forms by two steel sheets and are constituteed, leave certain clearance between two splint to it is fixed through anchor clamp bolt 18, splint specification can be processed in advance according to the cross-section and the shape of railing post, be provided with the rubber gasket between splint and the railing post, both can prevent that splint from sliding, can avoid loading in-process anchor clamps to damage the railing post again.
The above description is only an application example of the present invention, and the protection scope of the present invention is not limited thereto. The technical solutions of the present invention are intended to cover the equivalent alternatives and modifications by those skilled in the art. The protection scope of the invention is subject to the claims.
Claims (7)
1. A portable railing horizontal thrust detection device is characterized by at least comprising a height-adjustable triangular support frame, a horizontal force transmission ejector rod, a portable hydraulic jack and a dynamometer, wherein the height-adjustable triangular support frame is arranged on a bridge body or a floor slab;
the height-adjustable triangular support frame comprises a vertical support rod (1), a horizontal rod (2), an inclined support rod (3), an external thread steel pipe (5) arranged at the top of the vertical support rod (1) and a height-adjusting flange sleeve (4) screwed on the external thread steel pipe (5); the vertical supporting rod (1), the horizontal rod (2) and the inclined supporting rod (3) are fixedly connected with each other through pi-shaped fixing pieces (19 and 20) on the rod pieces and the through screw;
the height adjusting flange sleeve (4) comprises a lower limiting flange (12) and an upper limiting ring (13) which are used for clamping and fixing the first end of the horizontal force transmission ejector rod (6), and the height adjusting flange sleeve can be prevented from running or sliding off in the load applying process;
horizontal biography power ejector pin (6) second end is relative with the railing side that is located the pontic or floor, and is equipped with portable hydraulic jack (7) and digital display formula wireless dynamometer (8) between horizontal biography power ejector pin (6) second end and railing side, load is applyed by manual hydraulic pump (9) in portable hydraulic jack (7) to through the size of digital display formula wireless dynamometer (8) real time control applyed the load that links to each other with it.
2. The portable railing horizontal thrust detection device according to claim 1, wherein a railing column arranged on a bridge or a floor is connected below the railing, a steel anchoring fixture is fixedly arranged at the lower part of the railing column, a flexible steel wire rope (10) is arranged between the lower limiting flange (12) and the steel anchoring fixture, and a steel wire rope tightness adjusting buckle (11) is arranged at the middle section of the flexible steel wire rope (10).
3. The portable railing horizontal thrust detection device according to claim 2, wherein one end of the flexible steel wire rope is fixed on an opening ear plate arranged on the lower limiting flange (12), the other end of the flexible steel wire rope is fixed in a reserved hole of the anchoring clamp (17), the flexible steel wire rope (10) adjusts the length of the flexible steel wire rope through a steel wire rope tightness adjusting buckle (11) arranged on the flexible steel wire rope, each anchoring clamp (17) used for fixing the flexible steel wire rope (10) comprises two clamping plates formed by bending steel plates, the tightness of the clamping plates is adjusted through a screw (18), a rubber gasket (21) is arranged between each clamping plate and the railing column, the clamping plates are prevented from sliding, and meanwhile the clamping plates are prevented from damaging the railing column in a loading process.
4. The portable railing horizontal thrust detection device according to claim 2, characterized in that a force transmission base plate is arranged between the dynamometer (8) and the railing handrail (102) to prevent the railing handrail from generating local deformation in the loading process, and the horizontal force applied by the portable hydraulic jack (7) is transmitted to the triangular vertical support frame and the obliquely arranged flexible steel wire rope (10) through the horizontal force transmission ejector rod (6).
5. The portable railing horizontal thrust detection device according to claim 2, characterized in that the plurality of perforated ear plates arranged on the lower limiting flange (12) of the height adjusting flange sleeve are arranged in a quincunx shape on the plane, thereby solving the problem of inconvenient anchoring of the flexible steel wire rope caused by flange adjustment in the loading process of railings with different heights.
6. The portable railing horizontal thrust detection device according to claim 1, characterized in that four height adjusting nuts (14, 15 and 16) are arranged at four corners of the height-adjustable triangular support frame, and the nuts are adjusted to adjust the verticality of the vertical support member (1) of the support frame, so as to reduce loading error.
7. An implementation method of a portable railing horizontal thrust detection device is characterized by comprising the following steps:
step 101: the triangular support frame is opened and is arranged on a floor slab or a bridge deck (100) of a platform bridge, the horizontal rods (2) and the diagonal braces (3) are put down and are connected with the vertical rod pieces through the opposite penetrating screw rods, after the connection is finished, the horizontal position between the triangular support frame and the handrail is preliminarily adjusted,
step 102: adjusting height adjusting screws arranged on four corners of the triangular support frame, adjusting the verticality of the triangular support frame in the vertical plane direction in an auxiliary manner through a level gauge, and rotating the loading height required by the height adjusting flange sleeve (4) according to the height of the handrail;
step 103: installing an anchoring clamp at the bottom of the railing upright post, installing a flexible steel wire rope, and pre-tightening the steel wire ropes on two sides through a steel wire rope tightener;
step 104: installing a horizontal force transmission ejector rod, a hydraulic jack, a dynamometer and a base plate, preliminarily applying load through an oil pump of the manual hydraulic jack, and fixing a force application device;
step 105: and installing a deformation testing instrument required by the test detection, performing a first-closing loading test and a test according to the test requirements and the test process of the regulations, and judging the horizontal load resistance of the tested railing according to the test result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010757208.3A CN111811949A (en) | 2020-07-31 | 2020-07-31 | Portable railing horizontal thrust detection device and implementation method thereof |
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| CN202010757208.3A CN111811949A (en) | 2020-07-31 | 2020-07-31 | Portable railing horizontal thrust detection device and implementation method thereof |
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| CN202010757208.3A Pending CN111811949A (en) | 2020-07-31 | 2020-07-31 | Portable railing horizontal thrust detection device and implementation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112557198A (en) * | 2020-11-05 | 2021-03-26 | 华北水利水电大学 | Load conversion application and detection device for top surface of column structure |
| RU206779U1 (en) * | 2021-04-26 | 2021-09-28 | федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный аграрный университет" (ФГБОУ ВО Волгоградский ГАУ) | FENCE TEST DEVICE |
| RU208002U1 (en) * | 2021-07-21 | 2021-11-29 | Открытое акционерное общество "Томская домостроительная компания" | Fence test spreader |
| CN114778306A (en) * | 2022-04-01 | 2022-07-22 | 中大检测(湖南)股份有限公司 | Building railing thrust experiment detection device and detection method thereof |
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