CN105058334B - Can the jacking bracket of horizontal sliding and antidetonation slow test system - Google Patents

Can the jacking bracket of horizontal sliding and antidetonation slow test system Download PDF

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Publication number
CN105058334B
CN105058334B CN201510425071.0A CN201510425071A CN105058334B CN 105058334 B CN105058334 B CN 105058334B CN 201510425071 A CN201510425071 A CN 201510425071A CN 105058334 B CN105058334 B CN 105058334B
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CN
China
Prior art keywords
jack
main
steel
wing
edge
Prior art date
Application number
CN201510425071.0A
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Chinese (zh)
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CN105058334A (en
Inventor
伍凯
张贺
陈�峰
王锐
南洋
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河海大学
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Priority to CN201510425071.0A priority Critical patent/CN105058334B/en
Publication of CN105058334A publication Critical patent/CN105058334A/en
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Publication of CN105058334B publication Critical patent/CN105058334B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25HWORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25Constructional features
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00Vibration-testing of structures; Shock-testing of structures
    • G01M7/02Vibration-testing by means of a shake table

Abstract

The invention discloses a kind of can the jacking bracket of horizontal sliding and antidetonation slow test system, wherein, described can the jacking bracket of horizontal sliding include:Channel steel base, it includes main part and is relatively arranged on the edge of a wing portion of main part both sides, and described main part is provided with bolt hole, and jack is secured by bolts in channel steel base;Rolling assembly, the roller including several ball bearings arranging along main part axis and with ball bearing socket;Constraint fixture, it offers bolt fixing hole, can be secured by bolts in the both sides of truss-steel beam;Its another side is located at the outside in edge of a wing portion, limits the range of movement of channel steel base.The present invention has the advantages that structure is simple, easy accessibility, and during being further applied load, jack can slide with respect to truss-steel beam, thus the deformation of component will not be produced and hinder, and jack and component keep fixing, bias will not be produced, thus overcoming the defect of prior art presence.

Description

Can the jacking bracket of horizontal sliding and antidetonation slow test system

Technical field

The invention belongs to measuring the equipment of material character, what especially a kind of civil engineering test research used is applying lotus During load can horizontal sliding jacking bracket.

Background technology

Structural seismic slow test may also be referred to as pseudo-static experimental or pseudo-static test, is to load with static manner Failure under earthquake action.The advantage of pseudo-static experimental is that consumption is less, and can suspend test in loading procedure to observe test specimen Deformation and experimental phenomena.According to《Building aseismicity test method code》Regulation, when component and framework carry out pseudo-static experimental The deadweight that certain xial feed to simulate upper component need to be applied at top.

As shown in figure 1, xial feed load mode is, in top specified location, hydraulic jack 101 is fixed on rigit-frame beam On 102, apply pressure using jack pair component.For moving freely of guarantee test component, traditional way is in jack It is lined with steel plate and solid round steel and component between.

But because jack is integrally fixed on rigit-frame beam, pressure meeting and component that in experimentation, jack applies Axis occur eccentric, moment of flexure, the result of impact test are produced on component.Existing solution structure is considerably complicated, effect Fruit is not good and uses inconvenience.

Content of the invention

Goal of the invention:There is provided a kind of structure relatively simple, can horizontal sliding jacking bracket, with eliminate bias shadow Ring.It is a further object of the present invention to provide a kind of antidetonation slow test system.

Technical scheme:A kind of can horizontal sliding jacking bracket it is characterised in that include:

Channel steel base, it includes main part and is relatively arranged on the edge of a wing portion of main part both sides, and described main part is provided with Bolt hole, jack is secured by bolts in channel steel base;

Rolling assembly, the rolling including several ball bearings arranging along main part axis and with ball bearing socket Wheel;

Constraint fixture, it offers bolt fixing hole, can be secured by bolts in the both sides of truss-steel beam;Its another side Positioned at the outside in edge of a wing portion, limit the range of movement of channel steel base;In working order, in the presence of jack, roller and steel Set a roof beam in place close contact, jack and channel steel base can vertically moving with respect to truss-steel beam.

In a further embodiment, described edge of a wing portion is provided with several bolts hole, and described constraint fixture is L-shaped, position Several notches are correspondingly arranged on the side outside the portion of the edge of a wing, described notch extends on truss-steel beam length direction, a bolt Through the bolt hole on notch and edge of a wing portion, channel steel base and constraint fixture are relatively fixed, this bolt can move in notch. Or, described constraint fixture is U-shaped, and it is located at below main part.

In a preferred embodiment, described constraint fixture is totally three right, is unequal angle, and the length of each constraint fixture is 100mm, minor face has the notch of 50mm × 75mm, has two bolts hole being applied to M20 at the axis of long side;Described channel-section steel Base is stainless steel component, long 450mm, and on the edge of a wing, interval 150mm has 3 bolts hole being applied to M18, and main part corner is opened It is provided with the bolt hole being connected with jack;Ball bearing is 3, each wide 100mm, and uniform welding is in bottom channel-section steel axis On, solid roller is stainless steel component, and external diameter 75mm, internal diameter 55mm are enclosed within ball bearing.

Further, a kind of antidetonation slow test system, including pedestal, reciprocating action device effect under on described pedestal The experimental member of movement, above-mentioned can horizontal sliding jacking bracket, one end is fixed in experimental member, channel-section steel is fixed in one end Jack on base, and the truss-steel beam being fixedly connected with constraint fixture.

Beneficial effect:The present invention has the advantages that structure is simple, easy accessibility, and during being further applied load, thousand Can slide with respect to truss-steel beam in jin top, thus the deformation of component will not be produced and hinder, and jack and component keep fixing, no Bias can be produced, thus overcoming the defect of prior art presence.

Brief description

Fig. 1 is the structural representation of prior art.

Fig. 2 a and Fig. 2 b is structural representation with truss-steel beam when fixing for the two kinds of embodiments of the present invention respectively.

Fig. 3 is the structural representation of an embodiment of the present invention.

Fig. 4 is the structural representation that the present invention constrains fixture.

Fig. 5 is the structural representation of channel steel base of the present invention and rolling assembly.

Specific embodiment

As shown in Fig. 2 a, Fig. 2 b and Fig. 3, the present invention jacking bracket of horizontal sliding can mainly include channel steel base, rolling Dynamic assembly and constraint fixture, are described in detail as follows:

As shown in Fig. 2 a, 2b, Fig. 3 and Fig. 5, channel steel base 1 includes main part 11 and is relatively arranged on main part both sides Edge of a wing portion 12.In this embodiment, main part and edge of a wing portion are integrally formed, and are U-type groove steel part.Described main part is provided with bolt Hole, jack is fixed on channel steel base by the first bolt 6;Rolling assembly includes several rollings along the setting of main part axis Pearl bearing 2 and the roller 3 with ball bearing socket.

As shown in figure 4, constraint fixture 4 while offering bolt fixing hole 41, steelframe can be fixed on by the second bolt 5 The both sides of beam;Its another side is located at the outside in edge of a wing portion, limits the range of movement of channel steel base.

In working order, in the presence of jack, roller is in close contact with truss-steel beam, and jack and channel steel base can phases Truss-steel beam is vertically moved.

When using, now several groups of constraint fixtures are respectively fixedly connected with truss-steel beam, then will be used for connecting jack Bolt passes through in the bolt hole on channel steel base corner, then passes through the spiral shell on notch and channel steel base on constraint fixture with bolt Keyhole, is torqued-up to predetermined extent, and jack is fixed in channel steel base by bolt, and the other end of jack is solid with experimental member Fixed, carry out component centering, then elongation jack is so that solid roller is adjacent to counter-force rigit-frame beam bottom.Jack is firm It is connected on test component.In process of the test, jack is fully connected with component, synchronizing moving, without acceptance of persons, and solid roller Enable jack and bottom channel-section steel horizontal sliding on counter-force truss-steel beam.In unloading and installation process, constraint fixture rises To the effect preventing jack and bearing falls downwards.And this structure is more better than ball pivot, service life is longer.

As shown in Fig. 2 a, Fig. 3 and Fig. 5, described edge of a wing portion is provided with several bolts hole, and described constraint fixture is L-shaped, position Several notches 42 are correspondingly arranged on the side outside the portion of the edge of a wing, described notch extends on truss-steel beam length direction, a spiral shell Bolt passes through the bolt hole on notch and edge of a wing portion to be relatively fixed channel steel base and constraint fixture, and this bolt can move in notch Dynamic.As shown in Figure 2 b, described constraint fixture is U-shaped, and it is located at below main part.

Above two embodiment gives two kinds of versions of constraint fixture, and it all ensure that channel steel base is being expected Constraint under move, not only ensured to occur eccentric but also channel steel base can be made will not to slip.

In certain embodiments, the parameter of associated components is as follows:Described constraint fixture is totally three right, is unequal angle, often The length of individual constraint fixture is 100mm, minor face has the notch of 50mm × 75mm, has two and be applied at the axis of long side The bolt hole of M20;Described channel steel base is stainless steel component, long 450mm, and on the edge of a wing, interval 150mm has 3 and is applied to M18 Bolt hole, bottom offers the bolt hole being connected with jack;Ball bearing is 3, each wide 100mm, uniform welding On the channel-section steel axis of bottom, solid roller is stainless steel component, and external diameter 75mm, internal diameter 55mm are enclosed within ball bearing.

The use process of the present invention and experimentation are as follows:

Three are symmetrically connected on loading equipemtn counter-force rigit-frame beam by the screw on long side to constraint fixture, centreline space Away from for 150mm.The bolt being connected with jack is penetrated bottom channel-section steel in advance.Bolt is passed through to constrain the notch insertion on fixture Screw on the channel-section steel edge of a wing of bottom simultaneously screws.Jack is installed, screws bottom channel-section steel and be connected the bolt using with jack.Carry out Component centering, then elongation jack is so that solid roller is adjacent to counter-force rigit-frame beam bottom.Jack is connected firmly to try Test on component.

Process of the test:In process of the test, roller is adjacent in counter-force truss-steel beam bottom and rolls.Due to jack and component It is reliably connected, move horizontally under horizontal loads with building, produce without acceptance of persons.First shrink very heavy after the completion of test Top, then removes jack and bottom channel-section steel connecting bolt, bottom channel-section steel and the connecting bolt of constraint fixture successively, finally removes Constraint fixture.

Above-mentioned jacking bracket is applied to transform existing experimental system, you can obtain a kind of antidetonation slow test system, its Main include pedestal, under the effect of reciprocating action device on described pedestal movement experimental member a, any of the above-described embodiment institute State can horizontal sliding jacking bracket, one end is fixed in experimental member, jack in channel steel base is fixed in one end, with And with the constraint truss-steel beam that is fixedly connected of fixture.

In a word, the present invention is solved in existing antidetonation slow test due to very heavy by scheme that is simple, easily realizing Top is fixed on the component eccentric compression problem causing on rigit-frame beam.

The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment Detail, in the range of the technology design of the present invention, multiple equivalents can be carried out to technical scheme, this A little equivalents belong to protection scope of the present invention.It is further to note that described in above-mentioned specific embodiment Each particular technique feature, in the case of reconcilable, can be combined by any suitable means.In order to avoid not Necessary repetition, the present invention no longer separately illustrates to various possible compound modes.Additionally, the various different enforcement of the present invention Combination in any can also be carried out, as long as it is without prejudice to the thought of the present invention, it is public that it equally should be considered as present invention institute between mode The content opened.

Claims (5)

1. a kind of can horizontal sliding jacking bracket, including:
Channel steel base (1), it includes main part (11) and the edge of a wing portion (12) being relatively arranged on main part both sides, described main part It is provided with bolt hole, jack is secured by bolts in channel steel base;
Rolling assembly, the rolling including several ball bearings (2) arranging along main part axis and with ball bearing socket Wheel (3);
It is characterized in that, also include:
Constraint fixture (4), it offers bolt fixing hole (41), can be secured by bolts in the both sides of truss-steel beam;It is another While being located at the outside in edge of a wing portion, limit the range of movement of channel steel base;
In working order, in the presence of jack, roller and truss-steel beam are in close contact, and jack and channel steel base can be with respect to The vertically moving of truss-steel beam.
2. as claimed in claim 1 can horizontal sliding jacking bracket it is characterised in that described edge of a wing portion be provided with some Individual bolt hole, described constraint fixture is L-shaped, is correspondingly arranged on several notches (42) on the side outside the portion of the edge of a wing, described Notch extends on truss-steel beam length direction, and a bolt passes through the bolt hole on notch and edge of a wing portion to press from both sides channel steel base and constraint Tool is relatively fixed, and this bolt can move in notch.
3. as claimed in claim 1 can horizontal sliding jacking bracket it is characterised in that described constraint fixture is U-shaped, its While being located at below main part.
4. as described in any one of claims 1 to 3 can horizontal sliding jacking bracket it is characterised in that described constraint folder Tool is totally three right, is unequal angle, and the length of each constraint fixture is 100mm, and minor face has the notch of 50mm × 75mm, long Two bolts hole being applied to M20 are had at the axis of side;Described channel steel base is stainless steel component, and long 450mm is spaced on the edge of a wing 150mm has 3 bolts hole being applied to M18, and main part corner offers the bolt hole being connected with jack;Ball bearing For 3, each wide 100mm, on the channel-section steel axis of bottom, solid roller is stainless steel component to uniform welding, and external diameter 75mm is interior Footpath 55mm, is enclosed within ball bearing.
5. a kind of antidetonation slow test system it is characterised in that include pedestal, reciprocating action device effect under on described pedestal The experimental member of movement, described in any one of Claims 1-4 can horizontal sliding jacking bracket, experiment is fixed in one end On component, one end be fixed on jack in channel steel base, and the truss-steel beam being fixedly connected with constraint fixture.
CN201510425071.0A 2015-07-17 2015-07-17 Can the jacking bracket of horizontal sliding and antidetonation slow test system CN105058334B (en)

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