阅读说明：本技术 一种土木工程框架结构的试验装置 (Civil engineering frame construction's test device ) 是由 李殷龙 唐辉 于 2021-09-18 设计创作，主要内容包括：本发明提供了一种土木工程框架结构的试验装置,包括：第一支撑板、第二支撑板、第三支撑板,第一支撑板下表面固接有曲柄滑块装置,曲柄滑块装置连接有第一电机；第二支撑板与第一支撑板相对设置,第二支撑板固接曲柄滑块装置；第三支撑板与第二支撑板相对设置,第三支撑板贯通有四个沿水平方向顺次排列的矩形槽,矩形槽内转动连接有纵向震动装置,纵向震动装置连接有第二电机,第二电机用于驱动纵向震动装置产生纵向震动,第二支撑板与第三支撑板之间固接有弹簧,第三支撑板下表面固接有支架。本发明改变原有模拟实验装置的纵向横向震动部件,实现真实模拟地震震源,使得该装置采集的数据与实际相符。(The invention provides a test device for a civil engineering frame structure, which comprises: the lower surface of the first supporting plate is fixedly connected with a slider-crank device which is connected with a first motor; the second supporting plate is arranged opposite to the first supporting plate and fixedly connected with the crank sliding block device; the third supporting plate and the second supporting plate are arranged oppositely, four rectangular grooves which are sequentially arranged in the horizontal direction are arranged through the third supporting plate, a longitudinal vibration device is connected in the rectangular grooves in a rotating mode and connected with a second motor, the second motor is used for driving the longitudinal vibration device to generate longitudinal vibration, a spring is fixedly connected between the second supporting plate and the third supporting plate, and a support is fixedly connected to the lower surface of the third supporting plate. The invention changes the longitudinal and transverse vibration components of the original simulation experiment device, realizes the real simulation of the seismic source, and ensures that the data acquired by the device conforms to the reality.)

1. The utility model provides a civil engineering frame construction's test device which characterized in that includes:

the device comprises a first supporting plate (1), a building mounting seat (4) is arranged on the upper surface of the first supporting plate and used for fixing a tested building, a slider-crank device (5) is fixedly connected to the lower surface of the first supporting plate (1), the slider-crank device (5) is connected with a first motor (6), and the first motor (6) drives a slider in the slider-crank device (5) to transversely reciprocate until transverse vibration is generated;

the second supporting plate (2) is arranged opposite to the first supporting plate (1), the second supporting plate (2) is fixedly connected with a slider-crank device (5), and a rubber pile (7) is fixedly connected between the first supporting plate (1) and the second supporting plate (2);

third backup pad (3), with second backup pad (2) set up relatively, third backup pad (3) link up there are four rectangular channel (3-1) of arranging in order along the horizontal direction, rectangular channel (3-1) internal rotation is connected with vertical vibrator (8), vertical vibrator (8) are connected with second motor (9), second motor (9) are used for driving vertical vibrator (8) to produce vertical vibrations, the rigid coupling has spring (10) between second backup pad (2) and third backup pad (3), third backup pad (3) lower surface rigid coupling has support (11).

2. A test rig of civil engineering frame construction according to claim 1, characterised in that the crank block arrangement (5) comprises:

the two ends of the first fixing piece (5-1) are respectively provided with a mounting seat (5-4), and the mounting seats (5-4) are mounted between the first supporting plate (1) and the second supporting plate (2);

the device comprises a transverse sliding chute (5-2), wherein a sliding block (5-5) is connected to the inner part of a chute body of the transverse sliding chute in a sliding manner, a driving rod (5-6) is hinged to the sliding block (5-5), the driving rod (5-6) extends out of the outer end of the transverse sliding chute (5-2), the extending end of the driving rod is hinged to a rotating rod (5-7), a rotating gear (5-8) is fixedly connected to the tail end of the rotating rod (5-7), the rotating gear (5-8) is in driving connection with a first motor (6), and the first motor (6) is fixedly connected to the upper surface of a second supporting plate (2);

the two ends of the second fixing piece (5-3) are respectively provided with a mounting seat (5-4), the mounting seats (5-4) are mounted between the first supporting plate (1) and the second supporting plate (2), and the rotating gear (5-8) is hung on the second fixing piece (5-3) and is rotatably connected with the second fixing piece (5-3);

the first fixing piece (5-1), the transverse sliding groove (5-2) and the second fixing piece (5-3) are fixedly connected into a whole in sequence along the horizontal direction.

3. A civil engineering frame structure test set as claimed in claim 2, characterised in that the longitudinal vibration means (8) comprise:

one end of the rotating shaft (8-1) is inserted into the inner wall of one end of the rectangular groove (3-1), the other end of the rotating shaft (8-1) extends out of the opposite end of the inner wall of the rectangular groove (3-1), a connecting piece (12) is arranged at the extending end of the rotating shaft, the rotating shafts (8-1) which are adjacently arranged on the third supporting plate (3) are in driving connection through the connecting piece (12), and any connecting piece (12) on the third supporting plate (3) is in driving connection with the second motor (9);

the plurality of convex blocks (8-2) are positioned in the rectangular grooves (3-1), the plurality of convex blocks (8-2) are sequentially and eccentrically fixedly connected to the rotating shaft (8-1) along the axial direction of the rotating shaft (8-1), and the plurality of convex blocks (8-2) are distributed in a wavy line.

4. A test rig of civil engineering frame construction according to claim 3, characterised in that the connecting piece (12) comprises: the driving wheel (12-1) and the driven wheel (12-2) are coaxially arranged with the rotating shaft (8-1), the connecting piece (12) connected with the second motor (9) is the driving wheel (12-1), the driving wheel (12-1) is connected with the belt drive of the second motor (9), the connecting piece (12) which is used for driving and connecting the adjacent rotating shaft (8-1) on the third supporting plate (3) is the driven wheel (12-2), and the adjacent rotating shaft (12-2) is connected with the belt drive.

5. The civil engineering frame construction test device according to claim 1, characterised in that the rubber pile (7) is a three-stage silicone rubber pile.

6. The civil engineering frame structure test device as claimed in claim 5, wherein the first fixing member (5-1) is provided with a reinforcing rib at the joint with the transverse sliding groove (5-2) for balancing the transverse vibration force.

7. The civil engineering frame structure test device of claim 6, wherein the first motor (6) and the second motor (9) are connected with an external power supply.

Technical Field

The invention belongs to the technical field of building experiment devices, and particularly relates to a test device for a civil engineering frame structure.

Background

Generally, after the frame structure design of civil buildings such as bridges, houses and the like is completed, models are required to be made and simulation experiments are carried out, and the simulation experiments are often used for evaluating the earthquake-resistant effect of the structure design. The earthquake-resistant model experiment device is suitable for the earthquake simulation in the prior earthquake-resistant simulation experiment, the earthquake simulation is generally to simulate longitudinal waves and transverse waves generated by the earthquake, the longitudinal waves mainly enable the building to vibrate up and down, the transverse waves mainly enable the building to vibrate horizontally and transversely, and the earthquake-resistant effect of the building under the action of the longitudinal waves and the transverse waves is detected.

The existing building earthquake-resistant experiment simulation device simulates longitudinal and transverse vibration generally through the form of longitudinally and transversely arranging a plurality of springs, but the springs often generate restoring force when vibrating horizontally and vertically, the restoring force is reactive force with transverse vibration force and longitudinal vibration force, therefore, the restoring force can weaken vibration force, so that the vibration effect is weakened, the longitudinal and transverse vibration of real earthquake can not be simulated, at the moment, the collected data is not consistent with the reality, and the engineering construction quality can be influenced finally.

Disclosure of Invention

The invention provides a test device for a civil engineering frame structure, and aims to solve the technical problems that a building anti-seismic experiment simulation device in the prior art uses a spring to generate transverse vibration and longitudinal vibration, the longitudinal vibration and the transverse vibration of a real earthquake cannot be simulated, the acquired data is not consistent with the reality, and the engineering construction quality is influenced finally.

The technical scheme of the invention is as follows: a civil engineering frame construction's test device includes:

the upper surface of the first supporting plate is provided with a building mounting seat for fixing a tested building, the lower surface of the first supporting plate is fixedly connected with a crank block device, the crank block device is connected with a first motor, and the first motor drives a slide block in the crank block device to transversely reciprocate until transverse vibration is generated;

the second supporting plate is arranged opposite to the first supporting plate and fixedly connected with the slider-crank device, and a rubber pile is fixedly connected between the first supporting plate and the second supporting plate;

the third supporting plate is arranged opposite to the second supporting plate, four rectangular grooves are arranged in sequence in the horizontal direction in the third supporting plate in a penetrating mode, a longitudinal vibration device is connected to the rectangular grooves in a rotating mode and connected with a second motor, the second motor is used for driving the longitudinal vibration device to generate longitudinal vibration, a spring is fixedly connected between the second supporting plate and the third supporting plate, and a support is fixedly connected to the lower surface of the third supporting plate.

Optionally, the slider-crank device comprises:

the two ends of the first fixing piece are respectively provided with a mounting seat, and the mounting seats are mounted between the first supporting plate and the second supporting plate;

the inner part of the groove body of the transverse sliding groove is connected with a sliding block in a sliding manner, the sliding block is hinged with a driving rod, the driving rod extends out of the outer end of the transverse sliding groove, the extending end of the driving rod is hinged with a rotating rod, the tail end of the rotating rod is fixedly connected with a rotating gear, the rotating gear is in driving connection with a first motor, and the first motor is fixedly connected to the upper surface of the second supporting plate;

the two ends of the second fixing piece are respectively provided with a mounting seat, the mounting seats are mounted between the first supporting plate and the second supporting plate, and the rotating gear is hung on the second fixing piece and is rotationally connected with the second fixing piece;

the first fixing piece, the transverse sliding groove and the second fixing piece are fixedly connected into a whole in sequence along the horizontal direction.

Optionally, the longitudinal vibration device comprises:

one end of the rotating shaft is inserted into the inner wall of one end of the rectangular groove, the other end of the rotating shaft extends out of the opposite end of the inner wall of the rectangular groove, a connecting piece is arranged at the extending end of the rotating shaft, the rotating shafts adjacently arranged on the third supporting plate are in driving connection through the connecting piece, and any connecting piece on the third supporting plate is in driving connection with the second motor;

the plurality of lugs are positioned in the rectangular groove, are sequentially and eccentrically fixedly connected to the rotating shaft along the axis direction of the rotating shaft, and are distributed in a wavy line.

Optionally, the connecting member includes: the connecting piece that is connected with the second motor is the action wheel, and the action wheel is connected with second motor belt drive, and adjacent pivot is used for the drive to be connected for following the driving wheel in the third backup pad, and adjacent belt drive from the driving wheel is connected.

Optionally, the rubber pile is a three-stage silica gel rubber pile.

Optionally, a reinforcing rib is arranged at the fixed connection part of the first fixing piece and the transverse sliding groove and used for balancing transverse vibration force.

Optionally, the first motor and the second motor are both connected with an external power supply.

The invention has the beneficial effects that: the invention provides a test device for a civil engineering frame structure, which realizes the simulation of an earthquake-proof focus of a building by connecting a transverse vibration device and a longitudinal vibration device with the building in a vibration manner through three support plates. The transverse vibration device adopts a slider-crank device, replaces a transverse spring of the existing transverse vibration device, a slider of the slider-crank device is in driving connection with a first motor, the first motor drives the slider to do transverse reciprocating motion along the slider-crank device under the action of driving force, the slider impacts inner walls at two ends of the slider-crank device at every time to generate transverse acting force to act on a first supporting plate, the first supporting plate generates left and right vibration force, and the vibration force is transmitted to a building on the first supporting plate and is used for simulating transverse vibration force. The slider-crank device replaces a transverse spring, does not generate restoring force like the spring to weaken transverse vibration and simulates the transverse vibration generated by a real seismic source as far as possible, wherein the rubber pile is soft rubber and only plays a role in supporting the first supporting plate without blocking the transverse vibration. The longitudinal vibration device realizes the up-and-down reciprocating vibration force through the plurality of the bumps arranged in the wave shape, and replaces a longitudinal spring in the prior art, so that the restoring force is not generated, and the action and the effect of the longitudinal vibration force are not influenced.

Drawings

FIG. 1 is a schematic view showing the overall structure of a test apparatus for civil engineering framework structures according to the present invention;

FIG. 2 is a schematic structural view of the slider-crank device of FIG. 1;

FIG. 3 is a top view of the third support plate of FIG. 1;

FIG. 4 is a schematic structural view of the longitudinal vibration device of FIG. 1;

FIG. 5 is a schematic structural view of the connecting member on the first and fourth shafts in FIG. 1;

FIG. 6 is a schematic view of a connection member of the second shaft of FIG. 1;

fig. 7 is a schematic structural diagram of a connecting member on the third rotating shaft in fig. 1.

The automatic lifting device comprises a first supporting plate 1, a second supporting plate 2, a third supporting plate 3, a rectangular groove 3-1, a building installation seat 4, a crank block device 5, a first fixing piece 5-1, a transverse sliding groove 5-2, a second fixing piece 5-3, an installation seat 5-4, a sliding block 5-5, a driving rod 5-6, a rotating rod 5-7, a rotating gear 5-8, a first motor 6, a rubber pile 7, a longitudinal vibration device 8, a rotating shaft 8-1, a bump 8-2, a second motor 9, a spring 10, a support 11, a connecting piece 12, a driving wheel 12-1 and a driven wheel 12-2.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

In the description of the present invention, it is to be understood that the terms "lateral", "longitudinal", "vertical", "edge", "side end", "upper", "lower", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions of the present invention and simplifying the description, but do 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.

As shown in fig. 1 and 3, a test apparatus for a civil engineering frame structure includes: the device comprises a first supporting plate 1, a second supporting plate 2 and a third supporting plate 3, wherein a building installation seat 4 is arranged on the upper surface of the first supporting plate 1 and used for fixing a tested building, a slider-crank device 5 is fixedly connected to the lower surface of the first supporting plate 1, the slider-crank device 5 is connected with a first motor 6, the first motor 6 is connected with an external power supply, and the first motor 6 drives a slider in the slider-crank device 5 to transversely reciprocate until transverse vibration is generated; the second supporting plate 2 is arranged opposite to the first supporting plate 1, the second supporting plate 2 is fixedly connected with a slider-crank device 5, a rubber pile 7 is fixedly connected between the first supporting plate 1 and the second supporting plate 2, the rubber pile 7 is a three-level silica gel rubber pile, only plays a role in supporting the first supporting plate 1, and does not block transverse vibration; the third supporting plate 3 is arranged opposite to the second supporting plate 2, four rectangular grooves 3-1 which are sequentially arranged along the horizontal direction are arranged through the third supporting plate 3, a longitudinal vibration device 8 is rotationally connected in each rectangular groove 3-1, each longitudinal vibration device 8 is connected with a second motor 9, each second motor 9 is connected with an external power supply, each second motor 9 is used for driving each longitudinal vibration device 8 to generate longitudinal vibration, a spring 10 is fixedly connected between each second supporting plate 2 and each third supporting plate 3, a support 11 is fixedly connected to the lower surface of each third supporting plate 3, each spring 10 is used for limiting the longitudinal displacement of each second supporting plate 2 and each third supporting plate 3 and preventing each second supporting plate 2 from being separated from each third supporting plate 3, and the generated restoring force is smaller than the longitudinal vibration force generated when each second motor 9 drives each longitudinal vibration device 8, and therefore the restoring force can be ignored.

Further, with reference to fig. 2, the crank block arrangement 5 comprises: a first fixing piece 5-1, a transverse sliding groove 5-2 and a second fixing piece 5-3; the upper end and the lower end of the first fixing piece 5-1 are respectively provided with a mounting seat 5-4, and the mounting seats 5-4 are arranged between the first supporting plate 1 and the second supporting plate 2; the inside of the groove body of the transverse sliding groove 5-2 is connected with a sliding block 5-5 in a sliding manner, the sliding block 5-5 is hinged with a driving rod 5-6, the driving rod 5-6 extends out of the outer end of the transverse sliding groove 5-2, the extending end is hinged with a rotating rod 5-7, the tail end of the rotating rod 5-7 is fixedly connected with a rotating gear 5-8, the rotating gear 5-8 is in driving connection with a first motor 6, the first motor 6 is fixedly connected to the upper surface of a second supporting plate 2, wherein the rotating radius of the rotating rod 5-7 is smaller than the heights of the first supporting plate 1 and the second supporting plate 2, so that the first supporting plate 1 and the second supporting plate 2 cannot interfere with the rotation of the rotating rod 5-7; the upper end and the lower end of the second fixing piece 5-3 are respectively provided with a mounting seat 5-4, the mounting seats 5-4 are arranged between the first supporting plate 1 and the second supporting plate 2, and the rotating gear 5-8 is hung on the second fixing piece 5-3 and is rotatably connected with the second fixing piece 5-3; the first fixing piece 5-1, the transverse sliding groove 5-2 and the second fixing piece 5-3 are fixedly connected into a whole in sequence along the horizontal direction.

Further, referring to fig. 3 to 4, the longitudinal vibration device 8 includes: a rotating shaft 8-1 and a plurality of lugs 8-2; one end of the rotating shaft 8-1 is inserted into the inner wall of one end of the rectangular groove 3-1, the other end of the rotating shaft 8-1 extends out of the opposite end of the inner wall of the rectangular groove 3-1, a connecting piece 12 is arranged on the extending end of the rotating shaft, the rotating shafts 8-1 which are adjacently arranged on the third supporting plate 3 are in driving connection through the connecting piece 12, and any connecting piece 12 on the third supporting plate 3 is in driving connection with the second motor 9; the plurality of lugs 8-2 are positioned in the rectangular groove 3-1, the plurality of lugs 8-2 are sequentially and eccentrically fixedly connected on the rotating shaft 8-1 along the axial direction of the rotating shaft 8-1, and the plurality of lugs 8-2 are distributed in a wavy line.

Further, referring to fig. 5, 6, and 7, the connecting member 12 includes: the driving wheel 12-1 and the driven wheel 12-2 are respectively coaxially arranged with the rotating shaft 8-1, wherein the connecting piece 12 connected with the second motor 9 is the driving wheel 12-1, the driving wheel 12-1 is in belt driving connection with the second motor 9, the connecting piece 12 used for driving connection with the adjacent rotating shaft 8-1 on the third supporting plate 3 is the driven wheel 12-2, and the adjacent driven wheel 12-2 is in belt driving connection; specifically, as shown in fig. 1, the connecting member 12 is a connecting member on a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft in sequence from left to right, wherein fig. 5 is the connecting member on the first rotating shaft and the fourth rotating shaft in fig. 1, and the connecting member has only one driven wheel 12-2; FIG. 6 shows the second shaft coupling of FIG. 1, which is two driven wheels 12-2 with respective belts coupled to the first and third shafts; fig. 7 shows a connecting part on the third rotating shaft in fig. 1, the connecting part comprises two driven wheels 12-2 and a driving wheel 12-1, and the driving wheel 12-1 is connected with the second motor 9 through a belt. It should be noted that the second motor 9 can optionally connect four connecting pieces on the rotating shaft, when the connecting pieces need to be connected, the connecting pieces on the rotating shaft need to be provided with a driving wheel and a plurality of driven wheels, and the connecting pieces of other rotating shafts need to be correspondingly provided with corresponding driven wheels, so as to meet the requirement that the four rotating shafts rotate under the driving of the second motor 9.

Further, referring to fig. 1, a reinforcing rib is disposed at a fixed connection position of the first fixing member 5-1 and the transverse sliding groove 5-2 to balance transverse vibration force and prevent the first fixing member 5-1 from being separated from the transverse sliding groove 5-2 due to excessive vibration force.

The invention provides a test device for a civil engineering frame structure, which realizes the simulation of an earthquake-proof focus of a building by connecting a transverse vibration device and a longitudinal vibration device with the building in a vibration manner through three support plates. The transverse vibration device adopts a slider-crank device, replaces a transverse spring of the existing transverse vibration device, a slider of the slider-crank device is in driving connection with a first motor, the first motor drives the slider to do transverse reciprocating motion along the slider-crank device under the action of driving force, the slider impacts inner walls at two ends of the slider-crank device at every time to generate transverse acting force to act on a first supporting plate, the first supporting plate generates left and right vibration force, and the vibration force is transmitted to a building on the first supporting plate and is used for simulating transverse vibration force. The slider-crank device replaces a transverse spring, does not generate restoring force like the spring to weaken transverse vibration and simulates the transverse vibration generated by a real seismic source as far as possible, wherein the rubber pile is soft rubber and only plays a role in supporting the first supporting plate without blocking the transverse vibration. The longitudinal vibration device realizes the up-and-down reciprocating vibration force through the plurality of the bumps arranged in the wave shape, and replaces a longitudinal spring in the prior art, so that the restoring force is not generated, and the action and the effect of the longitudinal vibration force are not influenced.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.