CN203069465U - Combined torsion experiment device of member - Google Patents
Combined torsion experiment device of member Download PDFInfo
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- CN203069465U CN203069465U CN 201320040299 CN201320040299U CN203069465U CN 203069465 U CN203069465 U CN 203069465U CN 201320040299 CN201320040299 CN 201320040299 CN 201320040299 U CN201320040299 U CN 201320040299U CN 203069465 U CN203069465 U CN 203069465U
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Abstract
The utility model discloses a combined torsion experiment device of a member. The combined torsion experiment device comprises two counterforce frames, a counterforce beam and a counterforce wall, wherein the two counterforce frames are fixed on a basic terrace; both ends of the counterforce beam are fixed on the upper ends of the counterforce frames; the counterforce wall is fixed at the left side of the counterforce beam; and a member is fixed on the basic terrace. The combined torsion experiment device is characterized by also comprising a vertical force loading system, a horizontal force loading system, a member top line displacement guide system and a basic displacement limit system, wherein the vertical force loading system exerts vertical force on the member; the horizontal force loading system exerts horizontal force on the member; the member top line displacement guide system meets the requirements for axial deformation, bending deformation and shearing deformation of the member; and the basic displacement limit system fixes the position of the member. The combined torsion experiment device and the method disclosed by the utility model overcome the defects of the traditional similar experiment device and method, have the advantages of scientificity in experiment principle, easiness and convenience for operation and control of an experimental process and convenience for experiment device assembly, can be immediately used after being installed and be recycled, realize the purpose that an experimental result accords with the combined torsion property of the structural element under the action of a horizontal earthquake and provide the experimental guarantee for disclosing the combined torsion mechanism and earthquake-resistant property of the structural element.
Description
Technical field
The utility model belongs to building structure experimental technique field, the experimental provision that relates in particular to a kind of concrete component or steel reinforced concrete member subjected to combined torsion under the axial pressure effect with.
Background technology
Being turned round is one of basic stress form of structural elements, if load, member and end reaction will produce moment of torsion on the member section not in same plane.Therefore, in civil engineering structure, be subjected to the member ubiquity of torsional interaction, but be subjected to pure turn round and pressurized is turned round or bending or cut such as turns round at situation that simple composite turned round and few, being in pressure, moment of flexure, shearing and moment of torsion (being called for short: press bending and twisting) or moment of flexure, shearing and moment of torsion mostly (is called for short: bending and twisting) subjected to combined torsion state, usually be in when being turned round as vertical members such as framework corner posts and press bending and twisting subjected to combined torsion state, and levels such as horizontal curved beam, framework side bar are in bending and twisting subjected to combined torsion state when being turned round to member usually.Particularly the vertical member subjected to combined torsion in the irregular structure is obvious under the geological process, and especially corner post is more outstanding, destroys easily in earthquake and causes structural collapse.Along with the enhancing of overall national strength, the building with unique profile increases day by day, and irregular structure is also just increasing, and China is positioned between the world's two violent earthquake bands (circum-Pacific seismic zone and Eurasian seismic zone) simultaneously, is earthquake country more than.Therefore, experimentize research and theoretical analysis of the civil engineering structure member of subjected to combined torsion is not only the needs of scientific and reasonable designed component, and the ten minutes great social significance is arranged.
At present, owing to be subjected to the restriction of experimental provision and method, study purely turn round, press turn round or bending or the experiment of cutting under the state of turning round more, and the experiment that bending and twisting or bending and twisting subjected to combined torsion are pressed in research seldom, and existing a small amount of subjected to combined torsion experiment remains in following main deficiency: 1) stress of member is not inconsistent during the stressed and actual earthquake of member.The experiment of existing pressure bending and twisting subjected to combined torsion keep-ups pressure usually, shearing and moment of flexure are constant, only changes moment of torsion until component damage.And during actual earthquake, pressure substantially constant in the vertical member, shearing mainly are the inertial force that the horizontal earthquake motion produces, and moment of flexure and moment of torsion change along with the variation of this shearing.2) experimental technique complexity, the not enough science of experimental provision, and multiple spot loading, operation is big with the control difficulty in the experimentation.
As everyone knows, seismic motion is very complicated, wherein to normally moving along the horizontal horizontal earthquake of buildings that engineering structure has the greatest impact.For the simulate for lateral horizontal earthquake moves to the structural elements Effect on Performance, the researchist is in the process of research and development subjected to combined torsion experimental provision and method, the main difficulty that runs into has: 1) commonly bent, cut, in pressurized and the tension experiment, acting force, member and end reaction are in a plane, so its experimental provision is relative with method simple.And turned round when testing, acting force, member and end reaction be not in a plane, be a space-load, its experimental provision and method will be complicated many, and experimental provision and the method for especially researching and developing transverse horizontal geological process lower member subjected to combined torsion are just more difficult.For simulate for lateral horizontal earthquake action lower member can reverse and can only be out of shape along transverse horizontal, subjected to combined torsion experiment is so far taked to apply constant vertical force with the gravity effect of model configuration at the member top by a vertical force lifting jack, member is subjected to when center, member top applies constant horizontal force with simulated earthquake by a level jack shearing and moment of flexure, apply a pair of equal and opposite in direction in the left and right sides, member top by two horizontal tension and compression lifting jack (or actuator), direction is opposite, and the horizontal force that active line the keeps at a certain distance away moment of torsion that member is subjected to during with simulated earthquake, though such experiment has been simulated transverse horizontal geological process lower member and can have been reversed and can only be out of shape along transverse horizontal, but shortcoming is: experimentation need be controlled four acting forces simultaneously, the experiment difficulty is big, and the stress of member is not inconsistent during the stressed and actual earthquake of member simultaneously.2) torsional deflection of subjected to combined torsion experiment member so far is to realize by a ball pivot, but owing to the required vertical load of structural experiment is big, the ball pivot that can bear such load had not both had standard component, if the finishing expense is high again.Therefore, all adopt during experiment and do not pass through accurately machined ball pivot, certainly will bring certain experimental error like this.
Therefore, utility model is a kind of scientific and reasonable, simple and feasible, again well during the simulate for lateral horizontal earthquake action experimental provision and the method for member subjected to combined torsion very necessary, this is conducive to study better stressed mechanism and the destructive characteristics of subjected to combined torsion member, be conducive to scientific and reasonable, economy and design the subjected to combined torsion member reliably, guarantee structural safety.
The utility model content
The utility model purpose is: provide a kind of and make that the stress of member conforms to during the stressed and actual earthquake of member, and install scientific and reasonable, that method is simple and feasible subjected to combined torsion experimental provision and method.
The technical solution of the utility model is:
A kind of member subjected to combined torsion experimental provision, comprise the two Pin reaction frames that are fixed on the basic terrace, two ends are fixed on the reaction beam of reaction frame upper end, be fixed on the counter force wall in reaction beam left side, member is fixed on the basic terrace, it is characterized in that, also comprise the vertical force loading system that member is applied vertical force, member is applied the horizontal force loading system of horizontal force, satisfy the member axial deformation, the member top line displacement guidance system that flexural deformation and detrusion need and the basic displacement restriction system of fixed component position, wherein, the position of described vertical force loading system is corresponding with the tip position of member, and described vertical force loading system adopts thrust roller bearing to be connected with the force side of member; Described horizontal force loading system is arranged at the member left side and is fixedly connected on counter force wall, and described horizontal force loading system only arranges an electro-hydraulic servo actuator that applies horizontal force; Described member top line displacement guidance system two ends are fixedly connected on reaction frame, in the middle of the described member structure top line displacement guidance system horizontal guide rail mechanism and vertical guide mechanism are set, and described horizontal guide rail mechanism and vertical guide mechanism are connected in the member top; Described basic displacement restriction system is close to member two ends, bottom and is fixedly connected on basic terrace.
The effect of reaction beam and reaction frame is to bear member is applied the reacting force that a constant vertical force produces.Wherein: member and reaction frame are fixed on the terrace of laboratory; Reaction frame has two Pin, and every Pin forms by the horizontal girder steel that two vertical steel columns that are fixed in the laboratory terrace and two two ends are fixed in vertical steel column.
Further, described vertical force loading system comprises the lifting jack, thrust roller bearing, installation sleeve, bearing plate, rubber blanket, slide block and the guide rail that apply vertical force, wherein, be provided with Coupling Shaft between described lifting jack lower end and the thrust roller bearing, described installation sleeve is placed in the thrust roller bearing bottom, sets gradually bearing plate and rubber blanket between described thrust roller bearing and the member from top to bottom; Described lifting jack upper end is connected with steel plate with slide block, and described slide block can translation gliding in guide rail, and described guide rail usefulness steel plate is fixedlyed connected with reaction beam with bolt.
And by the horizontal slip of slide block on guide rail, to satisfy the requirement of vertical force loading system and the line synchro displacement of member top.This vertical force loading system with the maximum difference of existing similar experiment is: select for use thrust roller bearing to replace ball pivot, and by the horizontally rotating of thrust roller bearing, to satisfy the needs of member torsional deflection.Thrust roller bearing have vertical bearing capacity big, around level to can 360 ° rotations, around the little advantage of frictional influence when being not less than 15 ° of rotations, rotation is vertically arranged, these advantages satisfy the construction torsion experimental requirements just; And thrust roller bearing has standardized product, and its price is cheap more than the finishing ball pivot.
Further, described horizontal force loading system comprises the electro-hydraulic servo actuator, loading beam and the Jia Liang that apply horizontal force, wherein, described electro-hydraulic servo actuator one end is fixedly connected on counter force wall, the other end acts on loading beam one end by ball pivot, the other end of described loading beam adopts bolt to be connected with the folder beam, and the top of member is clamped between loading beam and the folder beam.
This horizontal force loading system with the maximum difference of existing similar experiment is: only apply horizontal force with an actuator, adopt two actuator and a lifting jack to apply horizontal force than existing similar experiment, its experimental implementation wants easy to be many with control, and the stress of member conforms to during the stressed and actual transverse horizontal geological process of member.
Further, described member top line displacement guidance system comprises orienting lug, vertical slide block, vertical guide, cross sliding clock, horizontal guide rail and guide beam, wherein, described guide beam two ends are fixedly connected on reaction frame, described horizontal guide rail uses steel plate and bolt in the guide beam middle part, described cross sliding clock is arranged in the horizontal guide rail and can translation gliding in horizontal guide rail, described vertical guide is connected with bolt with steel plate with cross sliding clock, described vertical slide block is arranged in the vertical guide and can translation gliding in vertical guide, described orienting lug one end is connected with bolt with steel plate with vertical slide block, and the orienting lug other end is clamped the Coupling Shaft that connects lifting jack and thrust roller bearing in the described vertical force loading system.
By the slip of vertical slide block on vertical guide, to satisfy the needs of member axial deformation; By the slip of cross sliding clock on horizontal guide rail, to satisfy the needs of member bending deformation and detrusion.The utility model of this system has realized using an actuator to apply horizontal force just can realize that existing similar experiment need adopt two actuator and a lifting jack to apply the effect that horizontal force just can reach, thereby makes experimental implementation easy to be many with control.
Further, described basic displacement restriction system comprises basis pressure beam, preceding steel case beam, back steel case beam and end carriage, wherein, described basis presses beam to adopt the earth anchor bolt that member is fixed in basic terrace, the both sides of steel case beam and back steel case beam clamping component before described, also be provided with spacing lifting jack and billet successively between steel case beam and the member before described, the steel case beam other end is fixedly connected on counter force wall before described, the described back steel case beam other end is fixedly connected on end carriage, and described end carriage is connected in basic terrace with the earth anchor bolt.The effect of this system is that displacements such as whole translation of rigid body and perk do not take place on the basis that guarantees member in the experimentation.This system is identical with existing similar experiment.
Use the method that above-mentioned experimental provision carries out the experiment of member subjected to combined torsion, this method may further comprise the steps:
(1) use the basic displacement restriction system that member is fixed on the terrace of laboratory;
(2) the horizontal force loading system is installed;
(3) the vertical force loading system is installed;
(4) installation component top line displacement guidance system;
(5) displacement meter of installation testing displacement of the lines and torsional deflection;
(6) strain measuring point of displacement meter, component inside etc. is connected to data acquisition system (DAS);
(7) preload, and whether detect whole experimental system work normal;
(8) the formal loading.At first apply axle pressure by the lifting jack in the vertical force loading system to member, and keep this axle pressure constant; Apply horizontal force until component damage by the actuator in the horizontal force loading system to member again.Horizontal force from zero to maximum, be down to 85% the process of peak load again, constantly gather the experiment desired data, observe also record experimental phenomena, if cancellation applies the axle pressure link in the above-mentioned steps, then be the bending and twisting performance test of member.
Member can be reinforced concrete member, steel reinforced concrete member, steel member or other structured material members.If reinforced concrete member or steel reinforced concrete member should take to add measures such as steel bushing or wrap carbon fiber at the top of member, destroy to prevent member top concrete local compression.
Experiment can be dull loading experiment, also can be low Zhou Fanfu loading experiment.Load mode has displacement control, load control and load-displacement to mix three kinds of controls, and suggestion selects for use displacement control or load-displacement to mix control.
This experimental provision and method have overcome the deficiency of existing similar experimental provision and method, the experimental principle science, the experimentation operation is easy with control, experimental provision is easy to assembly, plug and play, can be recycled, experimental result meets the subjected to combined torsion performance of structural elements under the horizontal earthquake action, for subjected to combined torsion mechanism and the anti-seismic performance that discloses structural elements provides experiment to guarantee.
The utility model has the advantages that:
1) member top line displacement guidance system is initiated in this experimental provision, the utility model of this system has realized using an actuator to apply horizontal force just can realize that existing similar experiment need adopt two actuator and a lifting jack to apply the effect that horizontal force just can reach, thereby makes experimental implementation easy to be many with control.Simultaneously, the stress of member conformed to when the application of this system made the stressed and actual transverse horizontal geological process of member, the shortcoming that the member stress state is not inconsistent during the stressed and actual transverse horizontal geological process of member when having overcome existing similar experiment.
2) select for use thrust roller bearing to replace ball pivot, and by the horizontally rotating of thrust roller bearing, to satisfy the needs of member torsional deflection.Thrust roller bearing have vertical bearing capacity big, around level to can 360 ° rotations, around the little advantage of frictional influence when being not less than 15 ° of rotations, rotation is vertically arranged, these advantages satisfy the construction torsion experimental requirements just; And thrust roller bearing has standardized product, and its price is cheap more than the finishing ball pivot.
The utility model experimental provision and method have overcome the deficiency of existing similar experimental provision and method, the experimental principle science, the experimentation operation is easy with control, experimental provision is easy to assembly, plug and play, can be recycled, experimental result meets the subjected to combined torsion performance of structural elements under the horizontal earthquake action, for subjected to combined torsion mechanism and the anti-seismic performance that discloses structural elements provides experiment to guarantee.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the experimental provision elevation drawing, the orthograph that obtains from B-B slice location and the projecting direction of Fig. 2;
Fig. 2 is the experimental provision planimetric map, the orthograph that obtains from A-A slice location and the projecting direction of Fig. 1;
Fig. 3 is the C-C sectional view of Fig. 2;
Fig. 4 is the right view of loading beam;
Fig. 5 is the left view of loading beam;
Fig. 6 is the vertical view of loading beam;
Fig. 7 is the A-A sectional view of Fig. 6;
Fig. 8 is the B-B sectional view of Fig. 6;
Fig. 9 is the left view of folder beam;
Figure 10 is the A-A sectional view of Fig. 9;
Figure 11 is the B-B sectional view of Figure 10;
Figure 12 is the vertical view of Coupling Shaft;
Figure 13 is the A-A sectional view of Figure 12;
Figure 14 is the vertical view of thrust roller bearing bottom installation sleeve;
Figure 15 is the A-A sectional view of Figure 14;
Figure 16 is the upward view of bearing plate;
Figure 17 is the vertical view of bearing plate;
Figure 18 is the A-A sectional view of Figure 17;
Figure 19 is the vertical view of the steel plate of connection vertical force lifting jack and slide block;
Figure 20 is the A-A sectional view of Figure 19;
Figure 21 is the vertical view of the steel plate of mounting guide rail;
Figure 22 is the A-A sectional view of Figure 21;
Figure 23 is the left view of orienting lug;
Figure 24 is the vertical view of orienting lug;
Figure 25 is the A-A sectional view of Figure 24;
Figure 26 is the B-B sectional view of Figure 24;
Figure 27 is the front view of connection orienting lug with the steel plate of vertical slide block;
Figure 28 is the A-A sectional view of Figure 27;
Figure 29 is the front view of the steel plate of installation vertical guide and cross sliding clock;
Figure 30 is the A-A sectional view of Figure 29;
Figure 31 is the vertical view of guide beam;
Figure 32 is the front view of guide beam;
Figure 33 is the A-A sectional view of Figure 32.
Illustrate: the orientation of front view, left view, vertical view isometric drawing title is all determined by Fig. 1 and Fig. 2 in the above map title.
Wherein: 1. member, 2. horizontal force actuator, 3. loading beam, 4. folder beam, 5. connect loading beam and the bolt that presss from both sides beam, 6. the steel plate that connects horizontal force actuator and loading beam, 7. the bolt that connects horizontal force actuator and loading beam, 8. counter force wall, 9. vertical force lifting jack, 10. the Coupling Shaft that connects vertical force lifting jack and thrust roller bearing, 11. thrust roller bearings, the installation sleeve of 12. thrust roller bearing bottoms, 13. bearing plate, 14. rubber blanket, 15. connect the steel plate of vertical force lifting jack and slide block, 16. slide blocks, 17. guide rail, 18. the steel plate of mounting guide rail, the steel plate of 19. connection guide rail steel plates and reaction beam, the bolt of 20. connection guide rail steel plates and reaction beam, 21. reaction beam, 22. reaction frame, 23. orienting lugs, 24. connect the steel plate of orienting lug and vertical slide block, 25. vertical slide block, 26. vertical guide, 27. install the steel plate of vertical guide and cross sliding clock, 28. cross sliding clocks, 29. horizontal guide rail, 30. guide beam, beam is pressed on 31. bases, and the earth anchor bolt of beam is pressed on 32. bases, 33. the preceding steel case beam of restriction foundation level displacement, 34. basic spacing lifting jack, the billet of 35. restriction foundation level displacements, the back steel case beam of 36. restriction foundation level displacements, 37. the end carriage of restriction foundation level displacement, 38. the earth anchor bolt of end carriage, 39. first displacement meters, 40. second displacement meters.
Embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are not limited to limit scope of the present utility model for explanation the utility model.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete engineering, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment:
Present embodiment provides a kind of experimental provision that carries out the structural elements subjected to combined torsion, carried out the pressure bending and twisting subjected to combined torsion experiment of 30 steel reinforced concrete members, its structure such as Fig. 1, Fig. 2, shown in Figure 3, comprise horizontal force actuator 2, loading beam 3, folder beam 4, connect loading beam and the bolt 5 that presss from both sides beam, the steel plate 6 that connects horizontal force actuator and loading beam, the bolt 7 that connects horizontal force actuator and loading beam, counter force wall 8, vertical force lifting jack 9, the Coupling Shaft 10 that connects vertical force lifting jack and thrust roller bearing, thrust roller bearing 11, the installation sleeve 12 of thrust roller bearing bottom, bearing plate 13, rubber blanket 14, the steel plate 15 that connects vertical force lifting jack and slide block, slide block 16, guide rail 17, the steel plate 18 of mounting guide rail, the steel plate 19 of connection guide rail steel plate and reaction beam, the bolt 20 of connection guide rail steel plate and reaction beam, reaction beam 21, reaction frame 22, orienting lug 23, the steel plate 24 that connects orienting lug and vertical slide block, vertical slide block 25, vertical guide 26, the steel plate 27 of vertical guide and cross sliding clock is installed, cross sliding clock 28, horizontal guide rail 29, guide beam 30, beam 31 is pressed on the basis, the earth anchor bolt 32 on basis, the preceding steel case beam 33 of restriction foundation level displacement, the spacing lifting jack 34 in basis, the billet 35 of restriction foundation level displacement, the back steel case beam 36 of restriction foundation level displacement, the end carriage 37 of restriction foundation level displacement, the earth anchor bolt 38 of end carriage, first displacement meter 39, second displacement meter 40, pump house and the control system thereof of power are provided for the moving device 2 of horizontal masterpiece, oil pump and the pressure stabilizing device of power are provided for vertical force lifting jack 9 and basic spacing lifting jack 34, and carry out data acquisition equipment of structural experiment indispensability etc.
Wherein: horizontal force actuator 2, vertical force lifting jack 9, thrust roller bearing 11, slide block 16, guide rail 17, vertical slide block 25, vertical guide 26, cross sliding clock 28, horizontal guide rail 29, basic spacing lifting jack 34, first displacement meter 39, second displacement meter 40 etc. are standardized products.
Connect loading beam and the bolt 5 that presss from both sides beam, the steel plate 6 that connects horizontal force actuator and loading beam, the bolt 7 that connects horizontal force actuator and loading beam, counter force wall 8, rubber blanket 14, the steel plate 19 of connection guide rail steel plate and reaction beam, the bolt 20 of connection guide rail steel plate and reaction beam, reaction beam 21, reaction frame 22, beam 31 is pressed on the basis, the earth anchor bolt 32 on basis, the preceding steel case beam 33 of restriction foundation level displacement, the billet 35 of restriction foundation level displacement, the back steel case beam 36 of restriction foundation level displacement, the end carriage 37 of restriction foundation level displacement, the earth anchor bolt 38 of end carriage, pump house and the control system thereof of power are provided for the moving device of horizontal masterpiece, oil pump and the pressure stabilizing device of power are provided for vertical force lifting jack and basic spacing lifting jack, and the data acquisition equipment that carries out the structural experiment indispensability etc. is the existing instrument and equipment in laboratory or conventional products.
Shown in Fig. 1 ~ 3, reaction frame 22 has two Pin, every Pin forms by the horizontal girder steel that two vertical steel columns that are fixed in the laboratory terrace and two two ends are fixed in vertical steel column, two Pin reaction frames form the space one-piece construction by reaction beam 21 and guide beam 30, and be fixed on the terrace of laboratory, be used for bearing member 1 is applied the reacting force that vertical axle pressure produces.The two ends of reaction beam 21 and guide beam 30 all are fixed on the reaction frame 22, reaction beam 21 be positioned at member 1 directly over, guide beam 30 is positioned at the rear of member 1.Counter force wall 8 is fixed on the terrace of laboratory, and is positioned at the left side of member 1, is used for bearing member 1 is applied the reacting force that horizontal force produces.Member 1 is fixed on the terrace of laboratory by the basic displacement restriction system, the left side of loading beam 3 next-door neighbour's members 1, and folder beam 4 is close to the right side of members 1, loading beam 3 and folder beam 4 is fixed on tightly the top of member 1 by four bolts 5.A steel bushing has just been installed at member 1 top before casting concrete, steel bushing is than loading beam 3 wide 10mm, destroys with the local failure that prevents the member top concrete subjected to combined torsion prior to member 1.By steel plate 6 and four bolts 7 horizontal force actuator 2 and loading beam 3 are linked together, and realize the hinged of horizontal force actuator 2 and loading beam 3 by the ball pivot of horizontal force actuator 2 self end.From member 1 end face install successively from bottom to up rubber blanket 14, bearing plate 13, thrust roller bearing bottom installation sleeve 12, thrust roller bearing 11, connect the steel plate 18 of vertical force lifting jack and Coupling Shaft 10, the vertical force lifting jack 9 of thrust roller bearing, the steel plate 15 that is connected vertical force lifting jack and slide block, slide block 16, guide rail 17, mounting guide rail.Wherein: rubber blanket 14 plays levelling and axle pressure is passed to member 1 equably; Horizontally rotate with the relative of its underpart installation sleeve 12 by thrust roller bearing 11, to satisfy the needs of member 1 torsional deflection; By the slip of slide block 16 on guide rail 17, the requirement that produces displacement of the lines at its top with the flexural deformation of satisfying member 1 and detrusion.Use six bolts that the Coupling Shaft 10 of thrust roller bearing is linked together with vertical force lifting jack 9; Use four bolts that vertical force lifting jack 9 and steel plate 15 are linked together; Totally four of slide blocks 16, every is installed on the steel plate 15 with four bolts; Guide rail 17 has two, and every is installed on the steel plate 18 with seven bolts; With two block plates 19 and four bolts 20 steel plate 18 is fixed on the reaction beam 21.Orienting lug 23 is processed by same block plate one, be split into orienting lug clamping plate and orienting lug matrix at last, at first orienting lug clamping plate and orienting lug matrix are entangled Coupling Shaft 10, with four bolts orienting lug clamping plate and orienting lug matrix are linked together again, and tightly clamp Coupling Shaft 10, the other end of orienting lug 23 links together with six bolts and steel plate 24; Vertical slide block 25 has two, and every is installed on the steel plate 24 with four bolts; Vertical guide 26 has two, and every is installed on the steel plate 27 with four bolts; Cross sliding clock 28 has four, and every is installed on the steel plate 27 with four bolts; Horizontal guide rail 29 has two, and every is installed on the guide beam 30 with ten bolts.
The structure of loading beam 3 such as Fig. 4 ~ shown in Figure 8, its main body is the I-beam that is welded by three block plates, and being welded with transverse stiffener, four holes among Fig. 4 are for being connected usefulness with folder beam 4, and strengthen with a block plate and two longitudinal stiffeners at join domain.
The structure of folder beam 4 such as Fig. 9 ~ shown in Figure 11, its main body is the I-beam that is welded by three block plates, and leaves four holes, is used for being connected with loading beam 3, and is welded with a steel plate cylinder around each hole, is used for the reinforcement to join domain.
The structure of Coupling Shaft 10 such as Figure 12 ~ shown in Figure 13, be through forging blanking, rough turn, modified, finish turning, brill is attacked and the processing of turning blue forms.Six holes on Coupling Shaft 10 tops are for linking to each other with vertical force lifting jack 9, lower recess is for installed thrust roller bearing 11, four holes around the bottom are used for being connected with the installation sleeve 12 of thrust roller bearing bottom, link to each other with four springs between the two, so that when carrying out the experiment of a collection of member, second member rises, and thrust roller bearing 11 and installation sleeve 12 thereof are without dismounting.
The structure of installation sleeve 12 such as Figure 14 ~ shown in Figure 15 are through modified, car, grind, mill, bore and the processing of turning blue forms.The corner cut of its left and right sides is reliable in order to contact closely, to be connected with bearing plate 13.Four holes around it are used for being connected with Coupling Shaft 10, and are continuous with four springs between the two, so that when carrying out the experiment of a collection of member, second member rises, and thrust roller bearing 11 and installation sleeve 12 thereof are without dismounting.
The structure of bearing plate 13 such as Figure 16 ~ shown in Figure 180, be through modified, grind, mill, brill, sandblast and the processing of turning blue form.Turn on its left and right sides is in order to be connected reliably with installation sleeve 12.
Connect the structure of steel plate 15 of vertical force lifting jack and slide block such as Figure 19 ~ shown in Figure 20, be through modified, grind, mill, drilling and tapping and the bright chromium of plating processes.16 holes that specification is identical on it are for four slide blocks 16 of installation, and four holes that all the other specifications are identical are for vertical force lifting jack 9 is installed.
The structure of the steel plate 18 of mounting guide rail such as Figure 21 ~ shown in Figure 22, be through modified, grind, mill, drilling and tapping and the bright chromium of plating processes.14 holes that specification is identical on it are that four holes that all the other specifications are identical are for by steel plate 19 and bolt 20 steel plate 18 being fixed on reaction beam 21 for two guide rails 17 of installation.
The structure of orienting lug 23 such as Figure 23 ~ shown in Figure 26 are through modified, flour milling, mill periphery, bore bottom outlet, bore hole, line cutting, mill the bright chromium of processing, tapping and plating and process.Orienting lug 23 is processed by same block plate one, be split into orienting lug clamping plate and orienting lug matrix at last, at first orienting lug clamping plate and orienting lug matrix are entangled Coupling Shaft 10, with four bolts orienting lug clamping plate and orienting lug matrix are linked together again, and tightly clamp Coupling Shaft 10, the other end of orienting lug 23 links together with six bolts and steel plate 24.
Connect the structure of orienting lug and the steel plate 24 of vertical slide block such as Figure 27 ~ shown in Figure 28, be through modified, grind, mill, drilling and tapping and the bright chromium of plating processes.Eight holes that specification is identical on it are that six holes that all the other specifications are identical are for being connected with orienting lug 23 for two vertical slide blocks 25 of installation.
The structure of steel plate 27 of vertical guide and cross sliding clock such as Figure 29 ~ shown in Figure 30 are installed, be through modified, grind, mill, drilling and tapping and the bright chromium of plating processes.16 holes that specification is identical on it are for four cross sliding clocks 28 of installation, and eight holes that all the other specifications are identical are for two vertical guide 26 are installed.
The structure of guide beam 30 such as Figure 31 ~ shown in Figure 33, its main body is the I-beam that is welded by three block plates, and be welded with transverse stiffener, guide beam 30 middle parts are installed horizontal guide rail 29 zones and are added weldering one block plate, 20 holes are used for installing two horizontal guide rails 29 on it, and each eight hole, two ends are used for guide beam 30 is fixed in reaction frame 22.
Adopt the device in the present embodiment to carry out the experiment of a collection of member, the experimental technique of its 1st member is as follows:
1) at first calculated the installation site of reaction frame 22, reaction beam 21, guide beam 30, member 1 and horizontal force actuator 2 according to the size of each parts and equipment.
2) according to calculating good position reaction frame 22, reaction beam 21 and guide beam 30 are installed.
3) use the basic displacement restriction system that member 1 is fixed on the installation site.
4) with being installed in cucurbit on the counter force wall 8 top semi-girders horizontal force actuator 2 of slinging, and be fixed on the counter force wall 8 according to the end of installation site with horizontal force actuator 2.
5) at reaction beam 21 cucurbit is installed, and with cucurbit loading beam 3 and folder beam 4 is sling, with bolt 5 loading beam 3 and folder beam 4 are fixed on the top of member 1 again, then with steel plate 6 and bolt 7 horizontal force actuator 2 and loading beam 3 are linked together.
6) from member 1 end face the installation sleeve 12 of rubber blanket 14, bearing plate 13, thrust roller bearing bottom is installed successively upwards.
7) guide rail 17 is installed on the steel plate 18, steel plate 18 usefulness steel plates 19 and the bolt 20 that will install guide rail 17 more are installed on the reaction beam 21.
8) slide block 16 is installed on the steel plate 15, and vertical force lifting jack 9 is connected with steel plate 15, again slide block 16 is docked with guide rail 17.
9) thrust roller bearing 11 is installed on the Coupling Shaft 10, again Coupling Shaft 10 is docked with vertical force lifting jack 9, then with four springs installation sleeve 12 is hung in the bottom of Coupling Shaft 10.
10) horizontal guide rail 29 is installed on the guide beam 30, again cross sliding clock 28, vertical guide 26 is connected with steel plate 27 respectively, and cross sliding clock 28 is docked with horizontal guide rail 29.
11) orienting lug 23, vertical slide block 25 are connected with steel plate 24 respectively, and vertical slide block 25 is docked with vertical guide 26, again orienting lug 23 is snapped onto on the Coupling Shaft 10.
12) check the correctness of each component locations, and finely tuned, make it to satisfy the requirement of structural experiment.
13) first displacement meter 39, second displacement meter 40 are installed.Collect the data of first displacement meter 39 and second displacement meter 40 by experiment, by both mean value can push away the displacement of the lines at stressed each stage member 1 top, by both difference divided by the distance of 40 of first displacement meter 39 and second displacement meters can push away the torsion angle at stressed each stage member 1 top.
14) strain measuring point of displacement meter, component inside etc. is connected to data acquisition system (DAS).
15) preload, and whether detect whole experimental system work normal.
16) the formal loading.At first apply axle pressure by vertical force lifting jack 9 to member 1, and keep this axle pressure constant; Apply horizontal force until component damage by horizontal force actuator 2 to member 1 again, experiment finishes.Horizontal force from zero to maximum, be down to 85% the process of peak load again, constantly gather the experiment desired data, gather with the stressed eigenwert of recording member 1 and should comprise at least: cracking load and corresponding distortion, yield load and corresponding distortion, peak load and corresponding distortion, ultimate deformation and corresponding load and the load-deformation curve of dullness loading or the hysteresis loop of low Zhou Fanfu loading etc. thereof thereof thereof thereof; Observation and record crack occur and experimental phenomenas such as the rule that develops and destruction form.
Adopt the device in the present embodiment to carry out the experiment of a collection of member, the experimental technique of its 2nd later member (comprising the 2nd) is as follows:
1) with cucurbit loading beam 3 and folder beam 4 are hung, remove and tested the member of finishing, this experiment member 1 is installed.
2) loading beam 3 and folder beam 4 are fixed on the top of member 1 with bolt 5.
3) from member 1 end face rubber blanket 14, bearing plate 13 are installed successively upwards.
4) check the correctness of each component locations, and finely tuned, make it to satisfy the requirement of structural experiment.
5) first displacement meter 39, second displacement meter 40 are installed.Collect the data of displacement meter 39 and 40 by experiment, by both mean value can push away the displacement of the lines at stressed each stage member 1 top, by both difference divided by displacement meter 39 and 40 s' distance can push away the torsion angle at stressed each stage member 1 top.
6) strain measuring point of displacement meter, component inside etc. is connected to data acquisition system (DAS).
7) preload, and whether detect whole experimental system work normal.
8) the formal loading.At first apply axle pressure by vertical force lifting jack 9 to member 1, and keep this axle pressure constant; Apply horizontal force until component damage by horizontal force actuator 2 to member 1 again, experiment finishes.Horizontal force from zero to maximum, be down to 85% the process of peak load again, constantly gather the experiment desired data, gather with the stressed eigenwert of recording member 1 and should comprise at least: cracking load and corresponding distortion, yield load and corresponding distortion, peak load and corresponding distortion, ultimate deformation and corresponding load and the load-deformation curve of dullness loading or the hysteresis loop of low Zhou Fanfu loading etc. thereof thereof thereof thereof; Observation and record crack occur and experimental phenomenas such as the rule that develops and destruction form.
As seen, 4) ~ 8) with the experimental technique of the 1st member in 12) ~ 16) identical.
The utility model adopts 2 pairs of members 1 of a horizontal force actuator to apply horizontal force, the inertial force that the floor quality produces in the time of just can simulated earthquake, member 1 is subjected to and the effect of shearing, moment of flexure and the moment of torsion of variation synchronously of this horizontal force, the stress of its stress during with actual earthquake conforms to, this experimental principle and methodological science, operation is easy with control.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the instructions just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.
Claims (5)
1. member subjected to combined torsion experimental provision, comprise the two Pin reaction frames that are fixed on the basic terrace, two ends are fixed on the reaction beam of reaction frame upper end, be fixed on the counter force wall in reaction beam left side, member is fixed on the basic terrace, it is characterized in that, also comprise the vertical force loading system that member is applied vertical force, member is applied the horizontal force loading system of horizontal force, satisfy the member axial deformation, the member top line displacement guidance system that flexural deformation and detrusion need and the basic displacement restriction system of fixed component position, wherein, the position of described vertical force loading system is corresponding with the tip position of member, and described vertical force loading system adopts thrust roller bearing to be connected with the force side of member; Described horizontal force loading system is arranged at the member left side and is fixedly connected on counter force wall, and described horizontal force loading system only arranges an electro-hydraulic servo actuator that applies horizontal force; Described member top line displacement guidance system two ends are fixedly connected on reaction frame, in the middle of the described member top displacement guidance system horizontal guide rail mechanism and vertical guide mechanism are set, and described horizontal guide rail mechanism and vertical guide mechanism are connected in the member top; Described basic displacement restriction system is close to member two ends, bottom and is fixedly connected on basic terrace.
2. member subjected to combined torsion experimental provision according to claim 1, it is characterized in that, described vertical force loading system comprises the lifting jack, thrust roller bearing, installation sleeve, bearing plate, rubber blanket, slide block and the guide rail that apply vertical force, wherein, be provided with Coupling Shaft between described lifting jack lower end and the thrust roller bearing, described installation sleeve is placed in the thrust roller bearing bottom, sets gradually bearing plate and rubber blanket between described thrust roller bearing and the member from top to bottom; Described lifting jack upper end is connected with steel plate with slide block, and described slide block can translation gliding in guide rail, and described guide rail usefulness steel plate is fixedlyed connected with reaction beam with bolt.
3. member subjected to combined torsion experimental provision according to claim 2, it is characterized in that, described horizontal force loading system comprises the electro-hydraulic servo actuator, loading beam and the Jia Liang that apply horizontal force, wherein, described electro-hydraulic servo actuator one end is fixedly connected on counter force wall, the other end acts on loading beam one end by ball pivot, and the other end of described loading beam adopts bolt to be connected with the folder beam, and the top of member is clamped between loading beam and the folder beam.
4. member subjected to combined torsion experimental provision according to claim 3, it is characterized in that, described member top line displacement guidance system comprises orienting lug, vertical slide block, vertical guide, cross sliding clock, horizontal guide rail and guide beam, wherein, described guide beam two ends are fixedly connected on reaction frame, described horizontal guide rail uses steel plate and bolt in the guide beam middle part, described cross sliding clock is arranged in the horizontal guide rail and can translation gliding in horizontal guide rail, described vertical guide is connected with bolt with steel plate with cross sliding clock, described vertical slide block is arranged in the vertical guide and can translation gliding in vertical guide, described orienting lug one end is connected with bolt with steel plate with vertical slide block, and the orienting lug other end is clamped the Coupling Shaft that connects lifting jack and thrust roller bearing in the described vertical force loading system.
5. member subjected to combined torsion experimental provision according to claim 3, it is characterized in that, described basic displacement restriction system comprises basis pressure beam, preceding steel case beam, back steel case beam and end carriage, wherein, described basis presses beam to adopt the earth anchor bolt that member is fixed in basic terrace, the both sides of steel case beam and back steel case beam clamping component before described, also be provided with spacing lifting jack and billet successively between steel case beam and the member before described, the steel case beam other end is fixedly connected on counter force wall before described, the described back steel case beam other end is fixedly connected on end carriage, and described end carriage is connected in basic terrace with the earth anchor bolt.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040299 CN203069465U (en) | 2013-01-25 | 2013-01-25 | Combined torsion experiment device of member |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040299 CN203069465U (en) | 2013-01-25 | 2013-01-25 | Combined torsion experiment device of member |
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| CN203069465U true CN203069465U (en) | 2013-07-17 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103115828A (en) * | 2013-01-25 | 2013-05-22 | 苏州科技学院 | Component combined torsion experimental device and method |
| CN103558098A (en) * | 2013-10-22 | 2014-02-05 | 沈阳建筑大学 | Pressure torsion test loading device for steel tube concrete pile |
| CN104198300A (en) * | 2014-08-13 | 2014-12-10 | 苏州筑邦测控科技有限公司 | Civil engineering array load test system |
| CN106596249A (en) * | 2016-12-16 | 2017-04-26 | 福建工程学院 | Experiment loading device adaptive to component sliding |
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| CN103115828B (en) * | 2013-01-25 | 2014-10-15 | 苏州科技学院 | Component combined torsion experimental device and method |
| CN103115828A (en) * | 2013-01-25 | 2013-05-22 | 苏州科技学院 | Component combined torsion experimental device and method |
| CN103558098A (en) * | 2013-10-22 | 2014-02-05 | 沈阳建筑大学 | Pressure torsion test loading device for steel tube concrete pile |
| CN103558098B (en) * | 2013-10-22 | 2016-01-13 | 沈阳建筑大学 | Steel core concrete column pressure torsional test charger |
| CN104198300A (en) * | 2014-08-13 | 2014-12-10 | 苏州筑邦测控科技有限公司 | Civil engineering array load test system |
| CN106596249B (en) * | 2016-12-16 | 2023-04-07 | 福建工程学院 | Test loading device adaptive to component sliding |
| CN106596249A (en) * | 2016-12-16 | 2017-04-26 | 福建工程学院 | Experiment loading device adaptive to component sliding |
| CN108181191A (en) * | 2017-11-29 | 2018-06-19 | 中国矿业大学 | A kind of rigidity beam column and beam column built from concrete multinode fatigue to failure test device |
| CN108181191B (en) * | 2017-11-29 | 2020-07-07 | 中国矿业大学 | Multi-node fatigue failure testing device for rigid beam column and concrete beam column |
| WO2020014794A1 (en) * | 2018-07-20 | 2020-01-23 | Clearwater Pipe Rentals Inc. | Weld test plugs and methods of use |
| US11719590B2 (en) | 2018-07-20 | 2023-08-08 | Clearwater Pipe Rentals Inc. | Weld test plugs and methods of use |
| CN111442867A (en) * | 2020-05-19 | 2020-07-24 | 华侨大学 | Testing device and method for horizontal restraining force of beam end |
| WO2023178883A1 (en) * | 2022-03-24 | 2023-09-28 | 中交第二航务工程局有限公司 | Universal segment rubber sealing gasket sliding test apparatus and method |
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