CN215329814U

CN215329814U - Reaction frame

Info

Publication number: CN215329814U
Application number: CN202121228981.7U
Authority: CN
Inventors: 丘健林; 顾美湘; 夏铨; 莫海钊; 蔡晓聪; 王兮; 毛彬冰
Original assignee: Guangzhou University
Current assignee: Guangzhou University
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-28
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a reaction frame, which relates to the technical field of loading of a composite foundation and comprises a bottom plate; the two upright columns are vertically arranged at the upper part of the bottom plate; the two ends of the cross beam are respectively sleeved on the two stand columns, and the cross beam can move up and down along the axial directions of the stand columns; and the adjusting member is used for limiting the movement of the cross beam, the adjusting member is arranged on the upright post, the adjusting member can be adjusted up and down along the axial direction of the upright post, and the position distance of the cross beam relative to the bottom plate can be adjusted through the adjusting member. Through the design, the reaction frame is suitable for most composite foundation model sizes, the actuator extension rod is not needed to be customized independently again due to overhigh reaction frame cross beam, manpower and material resources are effectively saved, waste is reduced, and the device is convenient to operate and simple in structure.

Description

Reaction frame

Technical Field

The utility model relates to the technical field of loading of composite foundations, in particular to a reaction frame.

Background

The composite foundation is the most widely used soft foundation treatment method at present, and is widely applied in domestic and foreign engineering practice because the composite foundation can give full play to the soil strength of the natural foundation and effectively coordinate the settlement deformation between the matrix and the reinforcement. The bearing deformation capacity of the composite foundation is the focus of attention in both engineering practice and laboratory test research. Because the indoor test research is limited by the field, the actual composite foundation needs to be reduced in size, and then the reaction frame in the test room is used for loading the composite foundation model. However, the construction site often does not have corresponding loading conditions, a large number of concrete blocks are generally needed to be used as counterweights, and the self weight of the concrete blocks is used as the vertical load in the test loading process.

At present, two methods are mainly adopted for loading the composite foundation, wherein one method is to utilize a large-scale structure reaction frame in a test room to provide vertical reaction for loading; one is the heavy object stacking adopted in the actual engineering. In the indoor test, the height and the size of the composite foundation model are changed for different test working conditions, however, the large-scale structural reaction frame is very inconvenient to use for the composite foundation model with variable size because the structural components of the large-scale structural reaction frame are heavy and difficult to adjust. The loading method of heavy object stacking has certain potential safety hazard due to large stacking height and weight, and is not recommended in indoor tests. Although the existing loading scheme can complete the loading of the composite foundation, the applicable conditions are single, and for complex and changeable composite foundation models, the existing scheme still has certain limitations in use.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the embodiment of the utility model provides the reaction frame which is safe and reliable to use, flexible and adjustable and simple and convenient to disassemble and assemble.

The embodiment of the utility model also provides a reaction frame, which comprises a bottom plate; the two upright columns are vertically arranged at the upper part of the bottom plate; the two ends of the cross beam are respectively sleeved on the two stand columns, and the cross beam can move up and down along the axial directions of the stand columns; and the adjusting member is used for limiting the movement of the cross beam, the adjusting member is arranged on the upright post, the adjusting member can be adjusted up and down along the axial direction of the upright post, and the position distance of the cross beam relative to the bottom plate can be adjusted through the adjusting member.

As a further improvement of the above scheme, the adjusting member includes a first fixing member and a second fixing member sleeved on the column, the first fixing member and the second fixing member are both in threaded connection with the column, the first fixing member abuts against the lower portion of the beam, the second fixing member abuts against the upper portion of the beam, and the first fixing member and the second fixing member are mutually matched to fix the beam on the column.

As a further improvement of the above scheme, a first stud is arranged at the upper part of the upright column, and the first fixing piece and the second fixing piece are both provided with a first threaded hole matched with the first stud.

As a further improvement of the above scheme, the reaction frame further includes a third fixing member, the third fixing member is located at the lower portion of the bottom plate, and the upright post penetrates through the bottom plate and then is in threaded connection with the third fixing member.

As a further improvement of the above scheme, a second stud is arranged at an end of the upright post, the second stud penetrates through the bottom plate, and a second threaded hole matched with the bottom plate is formed in the third fixing piece.

As a further improvement of the scheme, the lower part of the bottom plate is provided with a roller.

As a further improvement of the scheme, the lower part of the bottom plate is also provided with a stiffening rib.

As a further improvement of the scheme, the cross beam is a hollow square tube.

Based on the technical scheme, the embodiment of the utility model at least has the following beneficial effects: according to the technical scheme, the bottom plate is used as an installation reference of the stand columns and the cross beam, the two stand columns are vertically arranged on the upper portion of the bottom plate, the cross beam is located between the two stand columns, two ends of the cross beam are respectively sleeved on the two stand columns, the cross beam can move up and down along the axial direction of the stand columns, the adjusting component used for limiting the movement of the cross beam is arranged on the stand columns, the adjusting component can move up and down along the axial direction of the stand columns, and the position distance of the cross beam relative to the bottom plate can be adjusted through the adjusting component. To the composite foundation model of different sizes, the restriction of relieving the regulating member, can carry out upper and lower activity to the crossbeam and adjust suitable position, adjust the regulating member after the position is suitable and offset can with the crossbeam fixed, realize carrying out the loading experiment to placing the composite foundation model on the bottom plate through fixing the actuator on the crossbeam, through this kind of design, can make the reaction frame be applicable to the composite foundation model size of overwhelming majority, need not make actuator extension bar alone again because reaction frame crossbeam is too high, effectively use manpower and materials sparingly, reduce extravagantly, the simultaneous operation is also convenient, moreover, the steam generator is simple in structure.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a top view of an embodiment of the present invention;

FIG. 3 is a bottom view of an embodiment of the present invention;

FIG. 4 is a left side view of an embodiment of the present invention;

FIG. 5 is a schematic view of an embodiment of the present invention showing an operating state of the reaction frame after the actuator is installed.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 5, the reaction frame according to the embodiment of the present invention includes a bottom plate 110, two columns 210, a cross beam 300, and an adjusting member, where the bottom plate 110 is used as a reference for installation, and an experimental composite foundation model 500 is placed on the bottom plate 110, as shown in fig. 1, the two columns 210 are vertically installed on the upper portion of the bottom plate 110, the two columns 210 are arranged in parallel, the cross beam 300 is installed between the two columns 210, and two ends of the cross beam 300 are respectively sleeved on the two columns 210, where the cross beam 300 is movable up and down along an axial direction of the columns 210, the adjusting member is installed on the columns 210, and the adjusting member is used for limiting the movement of the cross beam 300, and further, the adjusting member is adjustable up and down along the axial direction of the columns 210, and the adjusting member is used for adjusting a position distance of the cross beam 300 relative to the bottom plate 110. To the compound foundation model of different sizes, the restriction of releasing the regulating member, can carry out activity from top to bottom to crossbeam 300 and adjust suitable position, adjust the regulating member after the position is suitable to offset with crossbeam 300 and can be fixed with crossbeam 300, actuator 400 fixed on crossbeam 300 of rethread realizes carrying out the loading experiment to the compound foundation model 500 of placing on bottom plate 110, through this kind of design, can make the reaction frame be applicable to most compound foundation model 500 sizes, need not again because reaction frame crossbeam 300 is too high and customize the extension bar of actuator 400 alone again, effectively use manpower and materials sparingly, and the reduction is extravagant, and the simultaneous operation is also convenient, moreover, the steam generator is simple in structure.

Specifically, the adjusting member includes a first fixing element 220 and a second fixing element 230 sleeved on the column 210, the first fixing element 220 and the second fixing element 230 are both in threaded connection with the column 210, the first fixing element 220 abuts against the lower portion of the beam 300, the second fixing element 230 abuts against the upper portion of the beam 300, the first fixing element 220 and the second fixing element 230 are matched with each other to fix the beam 300 on the column 210, wherein a first stud is arranged on the upper portion of the column 210, the first fixing element 220 and the second fixing element 230 are both provided with a first threaded hole matched with the first stud, and through matching of the first stud and the first threaded hole, the adjusting member is convenient to disassemble and assemble, and the adjusting member is also convenient to adjust. In this embodiment, the two columns 210 are provided with the adjusting members, when the adjusting members are installed, the first fixing member 220 for bearing the beam 300 is screwed onto the columns 210, the installation height is slightly higher than the height required by the test, and meanwhile, the two first fixing members 220 are ensured to be at the same height as much as possible, after the above, the beam 300 is penetrated from above the columns 210 and is erected on the first fixing member 220, then the second fixing member 230 is screwed into the columns 210, the second fixing member 230 props against the upper part of the beam 300, the beam 300 is located between the first fixing member 220 and the second fixing member 230, and the beam 300 can be pressed on the first fixing member 220 by screwing down the second fixing member 230, so that the movement of the beam 300 is limited, and when the relative distance of the beam 300 relative to the base plate 110 needs to be adjusted, the first fixing member 220 and the second fixing member 230 are adjusted at the same time.

When heightening, with second mounting 230 back of screwing up the height that needs earlier, thereby screw up first mounting 220 again and drive crossbeam 300 and adjust up, only need twist first mounting 220 or first and mounting 230 can, convenient operation, when heightening, screw down first mounting 220 earlier, crossbeam 300 can be in the state of supporting first mounting 220 under the effect of gravity always, after adjusting suitable height, twist down second mounting 230 and push down crossbeam 300 and can accomplish the regulation. When the cross beam 300 is adjusted, the actuator 400 needs to be fixed on the cross beam through bolts so as to be adjusted in place at one time. In addition, the length of the first stud can be designed according to actual requirements, and is not limited herein, the cross beam 300 is preferably a hollow square tube, so that the rigidity of the cross beam 300 can be ensured, the overall weight of the cross beam 300 can be reduced, when the cross beam is adjusted to a proper position, the first fixing piece 220 and the second fixing piece 230 need to be screwed in opposite directions, a gap between the first fixing piece 220 and the cross beam 300 is eliminated, and the influence on an experimental result caused by looseness in an experimental process is prevented.

Further, the reaction frame further comprises a third fixing part 240, the third fixing part 240 is located on the lower portion of the base plate 110, the upright post 210 penetrates through the base plate 110 and then is in threaded connection with the third fixing part 240, specifically, a second stud is arranged at the end portion of the upright post 210 and penetrates through the base plate 110, the third fixing part 240 is provided with a second threaded hole matched with the base plate 110, the second threaded hole is matched with the second stud, the upright post 210 is fixed on the base plate 110, a threaded connection mode is adopted, the reaction frame can be conveniently mounted and dismounted, the structural form is light, and mounting and dismounting can be completed without the need of any large-scale apparatus and professional training.

Preferably, the rollers 130 can be arranged on the lower portion of the bottom plate 110, the rollers 130 are load-bearing rollers, the composite foundation model 500 experiment capable of bearing heavy loads can be performed, meanwhile, the flexibility of the reaction frame can be improved, and the problem that the existing large-scale reaction frame test site is fixed, cannot be carried or is difficult to adjust is solved. Further, the lower portion of the base plate 110 is further provided with a stiffening rib 120, and the stiffening rib 120 can improve the rigidity of the base plate 110, so as to ensure that the base plate 110 does not deform greatly during the loading of the composite foundation model 500 by the actuator 400 shown in fig. 5.

In other embodiments, the number of the columns 210 can be 4, that is, two columns are disposed on both sides of the upper portion of the bottom plate 110, so as to make the frame more integral, although the number of the columns 210 can be any multiple of 2, and the specific placement position of the columns 210 is not limited herein.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A reaction frame is characterized in that: comprises that

A base plate (110);

the two upright posts (210), the upright posts (210) are vertically arranged at the upper part of the bottom plate (110);

the two ends of the cross beam (300) are respectively sleeved on the two upright columns (210), and the cross beam (300) can move up and down along the axial direction of the upright columns (210); and

the adjusting member is used for limiting the movement of the cross beam (300), the adjusting member is arranged on the upright post (210), the adjusting member can be adjusted up and down along the axial direction of the upright post (210), and the position distance of the cross beam (300) relative to the bottom plate (110) can be adjusted through the adjusting member.

2. The reaction frame of claim 1, wherein: the adjusting component comprises a first fixing piece (220) and a second fixing piece (230) which are sleeved on the upright post (210), the first fixing piece (220) and the second fixing piece (230) are in threaded connection with the upright post (210), the first fixing piece (220) props against the lower portion of the cross beam (300), the second fixing piece (230) props against the upper portion of the cross beam (300), and the first fixing piece (220) and the second fixing piece (230) are matched with each other to fix the cross beam (300) on the upright post (210).

3. The reaction frame of claim 2, wherein: the upper portion of stand (210) is equipped with first double-screw bolt, first mounting (220) and second mounting (230) all are equipped with first screw hole of first double-screw bolt matched with.

4. The reaction frame of claim 1, wherein: the reaction frame further comprises a third fixing piece (240), the third fixing piece (240) is located at the lower portion of the bottom plate (110), and the upright column (210) penetrates through the bottom plate (110) and then is in threaded connection with the third fixing piece (240).

5. The reaction frame of claim 4, wherein: the end part of the upright post (210) is provided with a second stud which penetrates through the bottom plate (110), and the third fixing piece (240) is provided with a second threaded hole matched with the bottom plate.

6. A reaction frame according to any of claims 1 to 5, wherein: the lower part of the bottom plate (110) is provided with a roller (130).

7. A reaction frame according to any of claims 1 to 5, wherein: the lower part of the bottom plate (110) is also provided with a stiffening rib (120).

8. A reaction frame according to any of claims 1 to 5, wherein: the cross beam (300) is a hollow square tube.