CN106840895A - Apply the guarantor of load in a kind of hollow wing balsh beam stability test to power apparatus - Google Patents

Apply the guarantor of load in a kind of hollow wing balsh beam stability test to power apparatus Download PDF

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Publication number
CN106840895A
CN106840895A CN201611203177.7A CN201611203177A CN106840895A CN 106840895 A CN106840895 A CN 106840895A CN 201611203177 A CN201611203177 A CN 201611203177A CN 106840895 A CN106840895 A CN 106840895A
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CN
China
Prior art keywords
loading
support
power
spherical
guarantor
Prior art date
Application number
CN201611203177.7A
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Chinese (zh)
Inventor
张文福
耿方方
于旭
张士萍
宗兰
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南京工程学院
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Application filed by 南京工程学院 filed Critical 南京工程学院
Priority to CN201611203177.7A priority Critical patent/CN106840895A/en
Publication of CN106840895A publication Critical patent/CN106840895A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12Pressure testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0016Tensile or compressive
    • G01N2203/0019Compressive
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003Generation of the force
    • G01N2203/0042Pneumatic or hydraulic means
    • G01N2203/0048Hydraulic means

Abstract

Guarantor the invention discloses applying load in a kind of hollow wing balsh beam stability test is to power apparatus, including the loading beam and reaction beam that two ends are connected by steel cable respectively;Loading beam, mating spherical surfaces support is also associated with towards one end of reaction beam, and testpieces is fixed on mating spherical surfaces support;Each steel wire rope, a hollow plunger synchronous hydra-ulic jacks are additionally provided with positioned at the free end of reaction beam;It is connected by a pair of anchorage groove supports and spherical anchorage respectively with the free end of loading beam and hollow plunger synchronous hydra-ulic jacks, every a pair of anchorages groove support and spherical anchorage are connected by spherical engaging structure.It is of the invention to protect to power apparatus, it is ensured that load direction and loading Position remain constant afterwards before the test;Overcome the shortcoming of traditional jack loading and weight loading.

Description

Apply the guarantor of load in a kind of hollow wing balsh beam stability test to power apparatus

Technical field

Protected to power the present invention relates to load during long strands field, more particularly to hollow wing balsh beam stability test Device.

Background technology

Girder steel can not be ignored as the most basic primary structure member of steel construction, its stable problem.In practical structures, steel Beam often bears the load that secondary beam is transmitted, thus, the stability research right and wrong to girder steel under Concentrated load It is often important.

In hollow wing balsh beam stability test under Concentrated load, it is desirable to loading Position and vertical load side To constant all the time, and traditional experimental rig is it is difficult to ensure that this 2 points;If loading device is lateral curved with hollow wing balsh beam Twisting strain and shift, the buckling deformation of beam may be hindered, causing experiment, to survey data not accurate enough.It is former due to more than Cause, the experiment both at home and abroad on hollow wing balsh beam stabilization is less.At present in existing a small number of common girder steel stability tests, mainly Using two methods of jack and weight loading.Traditional jack loads the significant drawback for existing:Once 1. there is side in girder steel Deform to bending, jack cannot continue loading as the lateral movement and torsion of girder steel will be disengaged from load(ing) point.2. jack Application point is typically a face when applying load, can not realize that Concentrated load, in the virtual condition of a bit, is caused Result of the test is not inconsistent with actual forced status.The method of weight loading can effectively overcome the shortcoming that jack is loaded, and in experiment The direction of the front and rear power of remaining is constant;But weight loading requires that stability bearing capacity can not be too big, and the stabilization of general girder steel is held Carry power and reach tens of tons.

The content of the invention

In order to overcome the above-mentioned deficiencies of the prior art, the invention provides one kind during hollow wing balsh beam stability test Apply the device of preferable load, it is ensured that load direction and loading Position remain constant afterwards before the test;Gram The traditional jack loading of clothes and the shortcoming of weight loading.

The technical solution adopted in the present invention is:Apply the guarantor of load in a kind of hollow wing balsh beam stability test to power Device, including the loading beam and reaction beam that two ends are connected by steel cable respectively;

Loading beam, mating spherical surfaces support is also associated with towards one end of reaction beam, and testpieces is fixed on mating spherical surfaces support;

Each steel wire rope, a hollow plunger synchronous hydra-ulic jacks are additionally provided with positioned at the free end of reaction beam;With loading The free end of beam and hollow plunger synchronous hydra-ulic jacks is connected by a pair of anchorage groove supports and spherical anchorage respectively, each Anchorage groove support and spherical anchorage are connected by spherical engaging structure.

Further, mating spherical surfaces support includes the loading sphere support for having to lower process sphere connecting portion, and has The spherical groove support coordinated with the spherical groove coordinated to lower process sphere connecting portion;Wherein loading sphere support is fixed on and adds The bottom of carrier beam, the bottom of spherical groove support is fixedly connected testpieces.

Further, loading beam and reaction beam are formed by connecting by the semi-shaped beam of two pieces of back-to-back settings, loading beam It is provided with steel-cable channel and two pieces of semi-shaped beams of reaction beam between, the steel wire penetrating steel-cable channel.

Further, two pieces of semi-shaped back portions and bottom of loading beam and reaction beam are by some intervals and put down The connecting plate that row is set is fixed.

Further, loading sphere support and spherical groove support are made up of No. 45 steel.

Further, every a pair of anchorages groove support and spherical anchorage are made up of No. 45 steel.

Further, the reserved active strokes h in hollow plunger synchronous hydra-ulic jacks one end is connected on steel wire rope, it is ensured that hollow Plunger synchronous hydra-ulic jacks are between reaction beam and ground with operation in enough spaces during reciprocal operation.

Compared with prior art, the beneficial effects of the invention are as follows:(1)Ensure that load direction in hollow wing balsh beam It is constant all the time before and after stability test, will not change as the lateral bending of test specimen deforms, it is ensured that the accurate of data is surveyed in experiment Property.

(2)Ensure that the position of load(ing) point is constant.

(3)Due to being further applied load by jack, traditional weight loading can be overcome the shortcomings of.

(4)It is easy to make, simple to operate, repeatable to utilize.

Brief description of the drawings

Fig. 1 is a kind of master of the one embodiment of the guarantor of applying load in hollow wing balsh beam stability test to power apparatus View;

Fig. 2 is the loading beam assembling schematic diagram of the embodiment of Fig. 1;

Fig. 3 is the loading sphere and the spherical groove location drawing of the embodiment of Fig. 1;

Fig. 4 is loading beam, steel wire rope, loading sphere, the spherical groove assembling schematic diagram of the embodiment of Fig. 1;

Fig. 5 is reaction beam, hollow plunger synchronous hydra-ulic jacks, the steel wire rope assembling schematic diagram of the embodiment of Fig. 1;

Wherein:1- loading beams, 2- reaction beams, 3- hollow plunger synchronous hydra-ulic jacks, 4- loading sphere supports, 41- dashes forward downwards Play sphere connecting portion;5- spherical groove supports, 51- spherical grooves;6- steel wire ropes, 7- anchorage groove supports, 8- hemispherical anchorages, The semi-shaped beams of 9-, 10- testpieces, 11- connecting plates, 12- steel-cable channels, 13- mating spherical surfaces supports.

Specific embodiment

In order to deepen the understanding of the present invention, the present invention is further described with reference to the accompanying drawings and examples, the implementation Example is only used for explaining the present invention, protection scope of the present invention is not constituted and is limited.

Compared with common girder steel, the FREE TORSION rigidity and warp stiffness of hollow wing balsh beam are bigger, therefore experiment is filled The requirement put is higher.Apply preferable load during hollow wing balsh beam stability test it is an object of the invention to provide one kind Device, it is ensured that load direction and loading Position remain constant afterwards before the test;Traditional jack is overcome to load The shortcoming loaded with weight.

As shown in figure 1, applying the guarantor of load in a kind of hollow wing balsh beam stability test to power apparatus, including two ends point Tong Guo not steel cable 6 loading beam 1 and reaction beam 2 that connect;Loading beam 1, sphere is also associated with towards one end of reaction beam 2 Support 13, testpieces 10 is coordinated to be fixed on mating spherical surfaces support 13;Each steel wire rope 6, positioned at the free end of reaction beam 2 It is additionally provided with a hollow plunger synchronous hydra-ulic jacks 3;With loading beam 1 and the free end of hollow plunger synchronous hydra-ulic jacks 3 Connected by a pair of anchorage groove supports 7 and hemispherical anchorage 8 respectively, every a pair of anchorages groove support 7 and hemispherical anchorage 8 are logical Cross spherical engaging structure connection.

As shown in figures 1 and 3, mating spherical surfaces support 13 includes the loading sphere branch for having to lower process sphere connecting portion 41 Frame 4, and with the spherical groove support 5 coordinated with the spherical groove 51 coordinated to lower process sphere connecting portion 41;Wherein load Sphere support 4 is fixed on the bottom of loading beam 1, and the bottom of spherical groove support 5 is fixedly connected testpieces 10.

Spherical groove support 5 is reliably connected in experiment surface of test piece, after loading sphere support 4 is reliably connected with loading beam 1 It is placed in the spherical groove of spherical groove support 5;Loading beam 1 is connected by steel wire rope 6 with hollow plunger synchronous hydra-ulic jacks, The two ends of reaction beam 2 require have enough spaces up and down to transport to ensure hollow plunger synchronous hydra-ulic jacks apart from ground certain altitude Row work, jack one end reliable contacts are in counter-force soffit;Wherein steel wire rope does sphere-contact with each several part contact position Treatment.The action principle of so package unit is:Loading beam is spherical point contact with experiment surface of test piece, overcomes tradition very heavy Push up the face contact of loading;Loading beam is connected by sphere-contact with steel wire rope, and steel wire penetrating reaction beam is connected with jack;Examination Jack pushes up reaction beam with this pulling force downward to steel wire rope applying upwards when testing, so as to realize the loading environment of load, When unstability outside test specimen lateral twisting generation plane is tested, spherical groove can follow rotation to turn over an angle, but loading sphere Remain that direction is constant, so as to realize vertically protecting the loading requirement to power.

In the above-described embodiments, loading beam 1 and reaction beam 2 connected by the semi-shaped beam 9 of two pieces of back-to-back settings and Into, steel-cable channel 12 is provided between loading beam 1 and two pieces of semi-shaped beams 9 of reaction beam 2, steel wire rope 6 passes through the steel wire rope Passage 12.

In the above-described embodiments, the top of two pieces of semi-shaped beams 9 and bottom of loading beam 1 and reaction beam 2 are by some The connecting plate 11 for being spaced and be arrangeding in parallel is fixed.

As shown in Fig. 2, Fig. 4 and Fig. 5, the composition of reaction beam 2 is similar with loading beam 1.Loading sphere support 4 and spherical groove The placement situation of support 5 as shown in figure 3, loading sphere support 4 is put in spherical groove 51 to lower process sphere connecting portion 41, Loading sphere support 4 is reliably connected below loading beam 1, and spherical groove support 5 is reliable to be positioned on experiment hollow wing balsh beam, this When hollow wing balsh beam generation side twisting strain is tested, the present apparatus can rotate constant so as to ensure the direction of power sample.Loading As shown in figure 4, steel wire rope 6 is reliably connected with hemispherical anchorage 8, hemispherical anchorage 8 is put for disposition between beam and steel wire rope It is placed in spherical anchorage groove 7.During specific experiment, 5 reliable being positioned over are tested at hollow wing balsh beam loading, reaction beam is reliably solid At the certain altitude of ground, vertical tension is applied by jack;When test specimen generation side twisting strain is tested, due to each several part Between contact be sphere-contact, without limitation on rotation, thus can guarantee that experiment before and after power direction it is constant.

In the above-described embodiments, loading sphere support 4 and spherical groove support 5 are made up of No. 45 steel.Every a pair of anchorages are recessed Groove support 7 and hemispherical anchorage 8 are made up of No. 45 steel, and cost is relatively low, and better performances.

Additionally, the reserved active strokes h in the one end of hollow plunger synchronous hydra-ulic jacks 3 is connected as shown in Figure 5, on steel wire rope 6, With operation in enough spaces when ensureing that hollow plunger synchronous hydra-ulic jacks 3 back and forth run between reaction beam 2 and ground.

What embodiments of the invention were announced is preferred embodiment, but is not limited thereto, the ordinary skill people of this area Member, easily according to above-described embodiment, understands spirit of the invention, and makes different amplifications and change, but as long as not departing from this The spirit of invention, all within the scope of the present invention.

Claims (7)

1. the guarantor of load is applied in a kind of hollow wing balsh beam stability test to power apparatus, it is characterised in that:Including two ends point Tong Guo not steel cable(6)The loading beam of connection(1)And reaction beam(2);
The loading beam(1), towards reaction beam(2)One end be also associated with mating spherical surfaces support(13), testpieces(10)It is fixed In mating spherical surfaces support(13)On;
Each described steel wire rope(6), positioned at reaction beam(2)Free end to be additionally provided with a hollow plunger synchronous hydraulic very heavy Top(3);With loading beam(1)With hollow plunger synchronous hydra-ulic jacks(3)Free end respectively pass through a pair of anchorage groove supports (7)With hemispherical anchorage(8)Connection, every a pair of anchorages groove support(7)With hemispherical anchorage(8)Connected by spherical engaging structure Connect.
2. the guarantor for applying load according to claim 1 is to power apparatus, it is characterised in that:Mating spherical surfaces support(13) Including with to lower process sphere connecting portion(41)Loading sphere support(4), and with to lower process sphere connecting portion (41)The spherical groove of cooperation(51)The spherical groove support of cooperation(5);Wherein described loading sphere support(4)It is fixed on loading Beam(1)Bottom, spherical groove support(5)Bottom be fixedly connected testpieces(10).
3. the guarantor for applying load according to claim 1 and 2 is to power apparatus, it is characterised in that:Loading beam(1)With it is anti- Power beam(2)By two pieces of semi-shaped beams of back-to-back setting(9)It is formed by connecting, loading beam(1)And reaction beam(2)Two and half I-shaped beamses(9)Between be provided with steel-cable channel(12), steel wire rope(6)Through the steel-cable channel(12).
4. the guarantor for applying load according to claim 3 is to power apparatus, it is characterised in that:Loading beam(1)And counter-force Beam(2)Two pieces of semi-shaped beams(9)Top and bottom are by some connecting plates for being spaced and be arrangeding in parallel(11)It is fixed.
5. the guarantor for applying load according to claim 3 is to power apparatus, it is characterised in that:Loading sphere support(4) With spherical groove support(5)It is made up of No. 45 steel.
6. the guarantor for applying load according to claim 1 is to power apparatus, it is characterised in that:Every a pair of anchorages groove branch Frame(7)With hemispherical anchorage(8)It is made up of No. 45 steel.
7. the guarantor for applying load according to claim 1 is to power apparatus, it is characterised in that:Steel wire rope(6)Upper connection Hollow plunger synchronous hydra-ulic jacks(3)The reserved active strokes h in one end, it is ensured that hollow plunger synchronous hydra-ulic jacks(3)Anti- Power beam(2)With operation in enough spaces during reciprocal operation between ground.
CN201611203177.7A 2016-12-23 2016-12-23 Apply the guarantor of load in a kind of hollow wing balsh beam stability test to power apparatus CN106840895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611203177.7A CN106840895A (en) 2016-12-23 2016-12-23 Apply the guarantor of load in a kind of hollow wing balsh beam stability test to power apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611203177.7A CN106840895A (en) 2016-12-23 2016-12-23 Apply the guarantor of load in a kind of hollow wing balsh beam stability test to power apparatus

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6619104B1 (en) * 2002-06-12 2003-09-16 Kuo Toon International Co., Ltd. Continuous testing device for water pipe
CN203455227U (en) * 2013-09-27 2014-02-26 湖南科技大学 Point load test instrument
CN203534900U (en) * 2013-11-13 2014-04-09 沈阳建筑大学 Concentrated load application device used during steel beam stability test

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6619104B1 (en) * 2002-06-12 2003-09-16 Kuo Toon International Co., Ltd. Continuous testing device for water pipe
CN203455227U (en) * 2013-09-27 2014-02-26 湖南科技大学 Point load test instrument
CN203534900U (en) * 2013-11-13 2014-04-09 沈阳建筑大学 Concentrated load application device used during steel beam stability test

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
熊刚 等: ""Q460GJ钢焊接H形梁整体稳定性能试验研究"", 《工程力学》 *

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Application publication date: 20170613

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