CN109115610A - Civil engineering arch structure tests apparatus for demonstrating - Google Patents
Civil engineering arch structure tests apparatus for demonstrating Download PDFInfo
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- CN109115610A CN109115610A CN201811226045.5A CN201811226045A CN109115610A CN 109115610 A CN109115610 A CN 109115610A CN 201811226045 A CN201811226045 A CN 201811226045A CN 109115610 A CN109115610 A CN 109115610A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/04—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of buildings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses civil engineering arch structures to test apparatus for demonstrating, including pedestal in rectangular configuration, it is fixed on Chuck top bottom plate in rectangular configuration, it is opened in the rectangular sliding slot in bottom plate top, positioned at bottom plate top middle portion and it is placed in the donor in sliding slot, vertically it is installed in Chuck top and the mirror settings support plate rectangular in bottom plate two sides, mirror settings are at left and right sides of donor and are correspondingly connected with the horizontal pressure exerting arrangement on support plate plate body for pressing to donor level, level is fixed on the transverse slat that top surface is in rectangular configuration on the inside of support plate, and it is connected to the transverse slat top middle portion and the vertical pressure exerting arrangement for vertically pressing to donor.The present invention can flexibly change the pressure of vertical and horizontal directions suffered by donor, quickly detect displacement both horizontally and vertically when donor is under pressure, work is demonstrated convenient for carrying out the test of arch structure pressure to student, student is facilitated to carry out the design studies of arch structure.
Description
Technical field
The present invention relates to civil engineerings to learn apparatus field, and specially a kind of civil engineering arch structure tests apparatus for demonstrating.
Background technique
Civil engineering is to build the general designation of the science and technology of all kinds of land engineering facilities, it had both referred to applied material, has set
The technical activities such as standby and the exploration, design, construction, maintenance, the maintenance that are carried out, also refer to the object of engineering construction；It is built in ground
It is upper or underground, land, be directly or indirectly human lives, production, military affairs, Scientific Research Service various job facilities, such as house,
Road, railway, pipeline, tunnel, bridge, canal, dykes and dams, harbour, power station, airport, ocean platform, water supply and drainage and protection
Engineering etc. needs to learn the stress characteristic of arch structure in civil engineering.
In the learning process for carrying out arch structure, due to lacking corresponding facility for study, the mistake that student learns in arch structure
It can not recognize in journey, in pressure of the arch structure by horizontal direction, how is arch structure stress characteristic, in arch structure by hanging down
Histogram to pressure when arch structure stress characteristic how so that the stress characteristic of student's indigestion arch structure.
Summary of the invention
The purpose of the present invention is to provide a kind of civil engineering arch structures to test apparatus for demonstrating, to solve above-mentioned background technique
Arch structure stress when the student of middle proposition can not understand pressure of the arch structure by horizontal direction and when the pressure of vertical direction
The problem of feature, indigestibility arch structure stress characteristic.
To achieve the above object, the invention provides the following technical scheme: civil engineering arch structure tests apparatus for demonstrating, including
Pedestal in rectangular configuration is fixed on Chuck top bottom plate in rectangular configuration, is opened in the rectangular cunning in bottom plate top
Slot, positioned at bottom plate top middle portion and be placed in sliding slot donor, positioned at donor center bottom and be vertically connected on bottom plate top
First detector for displacement measuring at middle part, be vertically connected in Chuck top and mirror settings in the rectangular support plate in bottom plate two sides,
Mirror settings are at left and right sides of donor and are correspondingly connected with the horizontal pressing machine on support plate plate body for pressing to donor level
Structure, mirror settings in bottom plate top and are correspondingly connected with and are fixed on branch in the second displacement measuring instrument of support plate inside bottom surface, level
It top surface transverse slat in rectangular configuration and is connected to the transverse slat top middle portion and hangs down for what is vertically pressed to donor on the inside of fagging
Straight pressure exerting arrangement.
Through rectangular through-hole is offered in the middle part of the side wall of the support plate, the side wall of the support plate is located on through-hole
Orientation, which is set, offers screw hole；The horizontal pressure exerting arrangement is by installing in sliding block in rectangular configuration in sliding slot vallecular cavity, being vertically connected
On sliding block top and side wall bottom surface fits in the rectangular push plate of donor outside bottom surface, is fixed in the middle part of push plate outside wall
Cushion block is fastened transversely to extend the guide plate of L-shaped structure on the outside of support plate on the outside of cushion block and across through-hole, be connected in pad
It first pressure sensor between block and guide plate and on the outside of guide plate vertical section and is threaded in screw hole vestibule and uses
It is constituted in the screw that guide plate vertical section and support plate are connected in one.
First pilot hole of two groups of rounded structures is offered in the middle part of the transverse slat top；The vertical pressure exerting arrangement by
It between two group of first pilot hole and is vertically connected in the screw rod of transverse slat top middle portion, vertically installs in transverse slat top and correspondence
Activity passes through guide post in two groups of the first pilot hole, is connected in guiding top ends in two groups be used to hold counterweight scale pan,
Positioned at scale pan disk body top middle portion and the casing of screw rod outer surface, mirror settings are threaded in scale pan bottom end and are located at
Outer guide post on the outside of interior guide post, positioned at transverse slat center bottom and to be secured transverse to guide post bottom end in two groups rectangular
Connecting plate, positioned at connecting plate bottom end and fit in donor top middle portion in inverted " c " shape structure pressing plate and be connected in connecting plate bottom end with
The second pressure sensor on pressing plate top is constituted；Offered in the middle part of scale pan disk body top passed perpendicularly through for screw rod it is in rounded shape
Perforation, scale pan disk body top along perforation mirror image be provided with for two groups of outer guide posts it is corresponding across the second pilot hole.
Preferably, it is in contact in the middle part of the measurement end on the first detector for displacement measuring top and donor bottom end, second displacement measurement
Measurement end on the inside of instrument is in contact with the lateral wall bottom surface of push plate, and the first detector for displacement measuring and second displacement measuring instrument are DWS
Type capacitive displacement measuring instrument；The power supply of its DWS type capacitive displacement measuring instrument are as follows:~220V, 50Hz, operating temperature are as follows: amplifier-
10 DEG C~80 DEG C, -20 DEG C of sensor probe~200 DEG C, measurement frequency range: 0-7.5KHZ.
Preferably, first pressure sensor and second pressure sensor are CLF-L2 pillar tension sensor；Its CLF-
The output temperature of L2 pillar tension sensor influences: ± 0.05%FS/10 DEG C, operating temperature: and -20 DEG C~65 DEG C, insulated electro
Resistance: > 5000M Ω.
Preferably, the setting height of transverse slat is 5/4ths of donor vertical height, and the setting height of transverse slat hangs down for push plate
6/5ths of straight height, and the outer surface of transverse slat is intervally distributed with reinforcing rib.
Preferably, the left side bottom end of donor and the right side bottom end of donor are fitted in the slot bottom of sliding slot, and the left side of donor
Bottom end and right side bottom end are equipped with wearing layer.
Preferably, the outer surface of casing is intervally distributed with anti-skidding linear groove, and the outer tube wall top circumferential of the casing is uniformly distributed
There are four groups of cylindrical holding rods, and holding rod is vertically connected in the outer tube wall of casing.
Preferably, the limited block that scale pan top position is fixed with structure cylindrical is extended on the top of outer guide post,
The horizontal length of the limited block is the half in the second pilot hole aperture.
Preferably, the damaged surface movable sleeve of interior guide post is connected to wear ring, and the wear ring is fixed flush-mounted in the first guiding
The hole in hole is intracavitary.
Preferably, the bottom end of pressing plate is bonded with the rubber pad in inverted " c " shape structure, which fits in the top of donor
End.
Preferably, the bottom end rectangle of pedestal is evenly equipped with universal wheel, and the side wall of the pedestal is fixed with pushing away in inverted " u "-shaped structure
Bar, the top of pedestal is in contact position with bottom plate bottom end coated with bonding agent, and the bottom end of bottom plate is spaced apart and is equipped with for accommodating
The circular hole of bonding agent.
The beneficial effects of the present invention are: it is easy to use, vertical pressure exerting arrangement, horizontal pressure exerting arrangement, first can be passed through
Shift measurement instrument and second displacement measuring instrument carry out the accurate pressure of vertical and horizontal directions to donor, neatly change donor institute
The pressure for the vertical and horizontal directions being subject to quickly detects displacement both horizontally and vertically when donor is under pressure, just
Work is demonstrated in the test for carrying out arch structure pressure to student, is conducive to the comprehensive study of student and understands in horizontal pressure force or vertical
While pressure acts on lower arch structure vertical direction and horizontal direction force feature, the design for facilitating student to carry out arch structure is ground
Study carefully.
Detailed description of the invention
Fig. 1 is structure of the invention main view；
Fig. 2 is the structural schematic diagram of the vertical pressure exerting arrangement of the present invention；
Fig. 3 is the structural side view of support plate of the present invention；
Fig. 4 is the structural schematic diagram of the horizontal pressure exerting arrangement of the present invention；
Fig. 5 is structure of the invention top view；
Fig. 6 is local structure top view of the present invention；
Fig. 7 is the structure top view of casing of the present invention；
In figure: 1 pedestal, 2 bottom plates, 21 sliding slots, 3 support plates, 31 through-holes, 32 screw holes, 4 transverse slats, 41 first pilot holes, 5 donors, 6
First detector for displacement measuring, 7 horizontal pressure exerting arrangements, 71 push plates, 72 sliding blocks, 73 cushion blocks, 74 guide plates, 75 screws, 76 first pressures
Sensor, 8 second displacement measuring instruments, 9 vertical pressure exerting arrangements, 91 screw rods, 92 scale pans, 921 perforation, 922 second pilot holes, 93
Casing, 931 holding rods, 94 outer guide posts, guide post, 96 connecting plates, 97 pressing plates, 98 second pressure sensors in 95.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, refering to fig. 1-7, civil engineering arch structure tests apparatus for demonstrating, including pedestal 1 in rectangular configuration, is fixed on this
1 top of pedestal bottom plate 2 in rectangular configuration is opened in the rectangular sliding slot 21 in 2 top of bottom plate, is located at 2 top middle portion of bottom plate
And be placed in sliding slot 21 donor 5, positioned at 5 center bottom of donor and be vertically connected on 2 top middle portion of bottom plate first displacement
Measuring instrument 6, be vertically connected in 1 top of pedestal and mirror settings in the rectangular support plate 3 in 2 two sides of bottom plate, mirror settings in
5 left and right sides of donor is simultaneously correspondingly connected on 3 plate body of support plate for horizontal pressure exerting arrangement 7, the mirror image to the horizontal pressure of donor 5
It is set to 2 top of bottom plate and is correspondingly connected with and be fixed on support plate 3 in the second displacement measuring instrument 8 of 3 inside bottom surface of support plate, level
Inside top surface transverse slat 4 in rectangular configuration and be connected to 4 top middle portion of transverse slat and for vertically press to donor 5 hang down
Straight pressure exerting arrangement 9.
Through rectangular through-hole 31 is offered in the middle part of the side wall of support plate 3, the side wall of the support plate 3 is located at through-hole 31
Top position offers screw hole 32；Horizontal pressure exerting arrangement 7 is by installing in sliding block 72 in rectangular configuration in 21 vallecular cavity of sliding slot, vertically
It is connected in 72 top of sliding block and side wall bottom surface fits in the rectangular push plate 71 of 5 outside bottom surface of donor, is fixed on push plate 71
Cushion block 73 in the middle part of lateral wall is fastened transversely to 73 outside of cushion block and passes through through-hole 31 to extend the 3 L-shaped knot in outside of support plate
The guide plate 74 of structure, the first pressure sensor 76 being connected between cushion block 73 and guide plate 74 and to be located at guide plate 74 perpendicular
On the outside of straight section and it is threaded in screw 75 of 32 vestibule of screw hole for 74 vertical section of guide plate and support plate 3 to be connected in one
It constitutes.
First pilot hole 41 of two groups of rounded structures is offered in the middle part of 4 top of transverse slat；Vertical pressure exerting arrangement 9 is by being located at
It is connected between two group of first pilot hole 41 and vertically the screw rod 91 of 4 top middle portion of transverse slat, vertically installs in 4 top of transverse slat and right
It answers activity to pass through guide post 95 in two groups of the first pilot hole 41, be connected in two groups 95 top of guide post for holding counterweight
Scale pan 92, positioned at 92 disk body top middle portion of scale pan and be threaded in the casing 93 of 91 outer surface of screw rod, mirror settings exist
92 bottom end of scale pan is simultaneously located at the outer guide post 94 in 95 outside of interior guide post, positioned at 4 center bottom of transverse slat and is secured transverse to two
The rectangular connecting plate 96 in 95 bottom end of guide post in group positioned at 96 bottom end of connecting plate and fits in 5 top middle portion of donor in inverted " c " shape
The pressing plate 97 of structure and the composition of second pressure sensor 98 for being connected in 96 bottom end of connecting plate and 97 top of pressing plate；Scale pan 92
It is offered in the middle part of disk body top and passes perpendicularly through perforation 921 in rounded shape for screw rod 91,92 disk body top of scale pan is along perforation
921 mirror settings have for two groups of outer guide posts 94 it is corresponding across the second pilot hole 922.
It is in contact in the middle part of the measurement end on 6 top of the first detector for displacement measuring and 5 bottom end of donor, in second displacement measuring instrument 8
The measurement end of side is in contact with the lateral wall bottom surface of push plate 71, and the first detector for displacement measuring 6 and second displacement measuring instrument 8 are DWS
Type capacitive displacement measuring instrument；The power supply of its DWS type capacitive displacement measuring instrument are as follows:~220V, 50Hz, operating temperature are as follows: amplifier-
10 DEG C~80 DEG C, -20 DEG C of sensor probe~200 DEG C, measurement frequency range: 0-7.5KHZ.
Wherein, DWS type capacitive displacement measuring instrument is versatility fine measuring instrument, it is both vialog and micrometer,
Not only be capable of measuring dynamic displacement, but also be capable of measuring static displacement, have common to general contactless instrument without friction, no abrasion and
Outside inertialess feature, also have signal-to-noise ratio big, high sensitivity, drift is small, and frequency response is wide, and non-linear small, precision stability is good, anti-electricity
The advantages that magnetic disturbance ability is strong and easy to use and operate.
First pressure sensor 76 and second pressure sensor 98 are CLF-L2 pillar tension sensor；Its CLF-L2 column
The output temperature of formula tension sensor influences: ± 0.05%FS/10 DEG C, operating temperature: and -20 DEG C~65 DEG C, insulation resistance: >
5000MΩ。
Wherein, the purposes and feature of CLF-L2 pillar tension sensor are as follows: material uses steel alloy, can be used for drawing, pressure
The measurement of value, output symmetry is good, and offset load resistance is strong；Suitable for various burden balance, hang hook steelyard, Material Testing Machine and it is all kinds of specially
With scale etc., built-in circuit, standard signal 4~20mA or 0~5V output may be selected.
The setting height of transverse slat 4 is 5/4ths of 5 vertical height of donor, and the setting height of transverse slat 4 is that push plate 71 is vertical
6/5ths of height, and the outer surface of transverse slat 4 is intervally distributed with reinforcing rib；The setting of reinforcing rib can enhance the knot of transverse slat 4
Structure intensity reduces transverse slat 4 in use there is a situation where fractureing to rupture, to extend the service life of transverse slat 4.
The left side bottom end of donor 5 and the right side bottom end of donor 5 are fitted in the slot bottom of sliding slot 21, and the left side bottom of donor 5
End is equipped with wearing layer with right side bottom end；The use of wearing layer, can enhance the wear-resisting property of 5 bottom end of donor, and reduction is using
When donor 5 suffered by abrasion, to extend the service life of donor 5.
The outer surface of casing 93 is intervally distributed with anti-skidding linear groove, wherein anti-skidding linear groove is capable of increasing casing 93
The degree of roughness on surface convenient for users to grip casing 93 steadily and then uses casing 93；The outer tube wall top surface of the casing 93
Four groups of cylindrical holding rods 931 are evenly distributed in, and holding rod 931 is vertically connected in the outer tube wall of casing 93；Wherein hand
Hold the use of bar 931, can user-friendly casing 93, auxiliary user quickly rotate clockwise or counterclockwise casing
93。
Extend the limited block that 92 top position of scale pan is fixed with structure cylindrical, the limit in the top of outer guide post 94
The horizontal length of position block is the half in 922 aperture of the second pilot hole；Wherein the setting of limited block can play the work of limit
With limitation scale pan 92 along the moving distance of outer guide post 94 prevents from that counterweight occurs during scale pan 92 moves up
Disk 92 is directly detached from the case where outer guide post 94.
The damaged surface movable sleeve of interior guide post 95 is connected to wear ring, which fixes flush-mounted in the first pilot hole 41
Hole is intracavitary, and the setting of wear ring internally guide post 95 can play the role of protection, can reduce interior guide post 95 and leads first
During being moved up and down to hole 41, contact wear suffered by interior guide post 95, to extend the use of interior guide post 95
Service life, and then extend the service life of civil engineering arch structure test apparatus for demonstrating.
The bottom end of pressing plate 97 is bonded with the rubber pad in inverted " c " shape structure, which fits in the top of donor 5；Rubber
The use of rubber mat can reduce pressing plate 97 to contact wear caused by 5 top of donor, to reduce pressing plate 97 and donor 5
Suffered abrasion extends the service life of pressing plate 97 and donor 5.
The bottom end rectangle of pedestal 1 is evenly equipped with universal wheel, and the side wall of the pedestal 1 is fixed with the push rod in inverted " u "-shaped structure, base
The top of seat 1 is in contact position with 2 bottom end of bottom plate coated with bonding agent, and the bottom end of bottom plate 2 is spaced apart equipped with viscous for accommodating
Connect the circular hole of agent；The wherein setting of circular hole is capable of increasing the degree of roughness of 2 bottom end of bottom plate, while can accommodate bonding agent, so that
Bottom plate 2 is firmly bonded on pedestal 1 by bonding agent, is increased the whole stability on 1 top of pedestal of bottom plate 2, is effectively prevent making
The use of the apparatus for demonstrating is subjected to displacement and influenced with process insole board 2.
The present invention is easy to use, can pass through vertical pressure exerting arrangement 9, horizontal pressure exerting arrangement 7,6 and of the first detector for displacement measuring
Second displacement measuring instrument 8 carries out the accurate pressure of vertical and horizontal directions to donor 5, neatly changes and hangs down suffered by donor 5
Straight and horizontal direction pressure, quickly detects displacement both horizontally and vertically when donor 5 is under pressure, and is convenient for student
Work is demonstrated in the test for carrying out arch structure pressure, is conducive to the comprehensive study of student and is understood in horizontal pressure force or pressure at right angle effect
While lower arch structure vertical direction and horizontal direction force feature, student is facilitated to carry out the design studies of arch structure.
Working principle: work is demonstrated in the pressure test of arch structure: the stress characteristic step in Study of Arch structure vertical direction makes
Device movement is placed in dais or ground first with universal wheel, is then rotated clockwise by holding rod 931 by the used time
Casing 93 so that casing 93 on screw rod 91 downward spiral rotate, 93 downward spiral of casing rotation when push scale pan 92 to
Lower movement is moved down by scale pan 92 and interior guide post 95 is driven to move down, and pushes connecting plate 96 to move down, so that pressing plate
97 vertically move down pressure holding on donor 5, at this time donor 5 by pressing plate 97 lower pressure and deform；To pass through the second pressure
Force snesor 98 is got information about, and in lasting rotating casing 93, pressure of 97 vertical depression of the pressing plate pressure holding on donor 5 is big
It is small, and then recognize pressure suffered by donor 5, and detect by the first detector for displacement measuring 6 and press through under pressing plate 97
Donor 5 generates amount of movement vertically downward in journey, while 5 two sides water of donor can be detected by second displacement measuring instrument 8
Flat amount of movement demonstrates work with this to complete the pressure test of arch structure, student is allowed intuitively to understand arch structure vertical direction
Stress characteristic.
Wherein, the downward press force that scale pan 92 can be mitigated by rotating counterclockwise casing 93, to mitigate pressing plate
97 downward pressure mitigate pressure suffered by donor 5；By rotating counterclockwise casing 93 and rotating clockwise casing 93
In the process, the pressure on donor 5 is pressed to change pressing plate 97, changes pressure suffered by donor 5, in the process, second
Pressure sensor 98 can quickly detect pressure suffered by donor 5, the first detector for displacement measuring 6 can detect rapidly donor 5 by
Displacement when to pressure.
Wherein, when carrying out the research of arch structure vertical direction stress characteristic, not rotating casing 93 can be selected, using not
The cooperation of the counterweight and scale pan 92 of homogenous quantities is completed to study, specific step are as follows: casing 93 is moved to screw rod first
91 highest point, then directly increase or reduce counterweight into scale pan 92, when being placed with counterweight in scale pan 92, scale pan 92
Press force by counterweight steadily moves downwards along screw rod 91 and outer guide post 94, and then scale pan 92 is allowed to drive interior guide post
95, connecting plate 96 and pressing plate 97 move down simultaneously, so that pressing plate 97 presses on donor 5, then pass through second pressure sensor 98
The vertical displacement intuitively checking pressure suffered by donor 5 with the first detector for displacement measuring 6 and being occurred under pressure
Amount, horizontal displacement suffered by donor 5 is observed by second displacement measuring instrument 8.
Work: the stress characteristic step in Study of Arch structure level direction is demonstrated in the pressure test of arch structure, first clockwise
Screw 75 is rotated, so that the lasting lateral wall to support plate 3 of the vertical section of guide plate 74 is close, in guide plate 74 close to support plate
During 3, guide plate 74 is moved along through-hole 31, and guide plate 74 pushes cushion block 73 and push plate 71 simultaneously towards the lateral wall of donor 5
Direction is mobile, and push plate 71 is tightly attached to 5 lateral wall of donor, the sliding block 72 of 71 bottom end of push plate at this time smooth sliding in sliding slot 21；
At this point, since horizontal pressure exerting arrangement 7 is mirror settings in the two sides of donor 5, so when rotating clockwise screw 75, left and right
Push plate 71 is moved to 5 lateral wall of donor simultaneously, and donor 5 will receive generated extruding force when left and right push plate 71 is moved and become
Shape detects that left and right push plate 71 presses the pressure on donor 5 using two groups of first pressure sensors 76 respectively；Utilize two group
Two detector for displacement measuring 8 come detect in left and right push plate 71 it is mobile caused by under extruding force effect, produced by 5 horizontal direction of donor
Displacement and 5 vertical direction of donor caused by displacement；Work is demonstrated to complete the pressure test of arch structure with this, allows student
Understand the stress characteristic of arch structure horizontal direction.
Wherein, it by the helical rotation in screw hole 32 of screw 75 that rotates counterclockwise or clockwise, is pushed away to change guide plate 74
Dynamic push plate 71 presses the pressure on donor 5, to change pressure suffered by donor 5, in the process, first pressure sensor
76 can quickly detect pressure suffered by donor 5, and second displacement measuring instrument 8 can quickly detect donor 5 and make in this pressure
With lower horizontal displacement occurred, the first detector for displacement measuring 6 can quickly detect the donor 5 under the effect of this pressure and be occurred
Vertical displacement amount, allow student it is comprehensive recognize arch structure horizontal pressure force or pressure at right angle effect under stress characteristic.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understand without departing from the principles and spirit of the present invention can to these embodiments carry out it is a variety of variation, modification, replacement and
Modification, the scope of the present invention is defined by the appended.
Claims (10)
1. civil engineering arch structure tests apparatus for demonstrating, it is characterised in that: including pedestal (1) in rectangular configuration, be fixed on this
Pedestal (1) top bottom plate (2) in rectangular configuration is opened in the rectangular sliding slot (21) in bottom plate (2) top, is located at bottom plate
(2) top middle portion and the donor (5) being placed in sliding slot (21), be located at donor (5) center bottom and be vertically connected on bottom plate (2)
The first detector for displacement measuring (6) of top middle portion is vertically connected in pedestal (1) top and mirror settings in bottom plate (2) two sides in square
The support plate (3) of shape, mirror settings are at left and right sides of donor (5) and are correspondingly connected on support plate (3) plate body for arch
The horizontal pressure exerting arrangement (7) of the horizontal pressure of body (5), mirror settings in bottom plate (2) top and are correspondingly connected on the inside of support plate (3)
The second displacement measuring instrument (8) of bottom surface, level are fixed on the transverse slat (4) that top surface is in rectangular configuration on the inside of support plate (3), Yi Jilian
It is connected to transverse slat (4) top middle portion and the vertical pressure exerting arrangement (9) for vertically pressing to donor (5)；
Through rectangular through-hole (31) are offered in the middle part of the side wall of the support plate (3), the side wall of the support plate (3) is located at
Through-hole (31) top position offers screw hole (32)；The horizontal pressure exerting arrangement (7) is interior in square in sliding slot (21) vallecular cavity by installing
The sliding block (72) of shape structure is vertically connected in sliding block (72) top and side wall bottom surface fits in donor (5) outside bottom surface in square
The push plate (71) of shape, the cushion block (73) being fixed in the middle part of push plate (71) lateral wall are fastened transversely on the outside of cushion block (73) and wear
Through-hole (31) is crossed to extend the guide plate (74) of L-shaped structure on the outside of support plate (3), be connected in cushion block (73) and guide plate
(74) first pressure sensor (76) between and it is located on the outside of guide plate (74) vertical section and is threaded in screw hole (32)
The screw (75) that vestibule is used to for guide plate (74) vertical section and support plate (3) being connected in one is constituted；
First pilot hole (41) of two groups of rounded structures is offered in the middle part of transverse slat (4) top；The vertical pressing machine
Structure (9) is by being located between two group of first pilot hole (41) and being vertically connected in the screw rod (91) of transverse slat (4) top middle portion, vertically pacify
Set on transverse slat (4) top and corresponding activity passes through guide post (95) in two groups of the first pilot hole (41), is connected in two groups and leads
It is used to hold the scale pan (92) of counterweight to column (95) top, is located at scale pan (92) disk body top middle portion and is threaded in spiral shell
The casing (93) of bar (91) outer surface, mirror settings are in scale pan (92) bottom end and the outer guiding that is located on the outside of interior guide post (95)
Column (94), be located at transverse slat (4) center bottom and be secured transverse to guide post (95) bottom end is rectangular in two groups connecting plate (96),
Positioned at connecting plate (96) bottom end and donor (5) top middle portion is fitted in the pressing plate (97) of inverted " c " shape structure and is connected in connecting plate
(96) the second pressure sensor (98) on bottom end and pressing plate (97) top is constituted；It is offered in the middle part of scale pan (92) disk body top
It is passed perpendicularly through perforation in rounded shape (921) for screw rod (91), scale pan (92) disk body top has along perforation (921) mirror settings
For two groups of outer guide posts (94) it is corresponding across the second pilot hole (922).
2. civil engineering arch structure according to claim 1 tests apparatus for demonstrating, it is characterised in that: the first detector for displacement measuring
(6) it is in contact in the middle part of the measurement end on top and donor (5) bottom end, the measurement end and push plate on the inside of second displacement measuring instrument (8)
(71) lateral wall bottom surface is in contact, and the first detector for displacement measuring (6) and second displacement measuring instrument (8) are DWS type capacitive displacement
Measuring instrument；The power supply of its DWS type capacitive displacement measuring instrument are as follows:~220V, 50Hz, operating temperature are as follows: -10 DEG C of amplifier~80
DEG C, -20 DEG C of sensor probe~200 DEG C, measurement frequency range: 0-7.5KHZ.
3. civil engineering arch structure according to claim 1 tests apparatus for demonstrating, it is characterised in that: first pressure sensor
It (76) is CLF-L2 pillar tension sensor with second pressure sensor (98)；The output of its CLF-L2 pillar tension sensor
Temperature influences: ± 0.05%FS/10 DEG C, operating temperature: and -20 DEG C~65 DEG C, insulation resistance: > 5000M Ω.
4. civil engineering arch structure according to claim 1 tests apparatus for demonstrating, it is characterised in that: transverse slat (4) are installed
Height is 5/4ths of donor (5) vertical height, the setting height of transverse slat (4) be push plate (71) vertical height five/
Six, and the outer surface of transverse slat (4) is intervally distributed with reinforcing rib.
5. civil engineering arch structure according to claim 1 tests apparatus for demonstrating, it is characterised in that: the left side of donor (5)
The right side bottom end of bottom end and donor (5) is fitted in the slot bottom of sliding slot (21), and the left side bottom end of donor (5) and right side bottom end are equal
Equipped with wearing layer.
6. civil engineering arch structure according to claim 1 tests apparatus for demonstrating, it is characterised in that: the appearance of casing (93)
Anti-skidding linear groove is distributed in face interval, and the outer tube wall top circumferential of the casing (93) is evenly equipped with four groups of cylindrical holding rods
(931), and holding rod (931) is vertically connected in the outer tube walls of casing (93).
7. civil engineering arch structure according to claim 1 tests apparatus for demonstrating, it is characterised in that: outer guide post (94)
The limited block that scale pan (92) top position is fixed with structure cylindrical is extended on top, and the horizontal length of the limited block is the
The half in two pilot holes (922) aperture.
8. civil engineering arch structure according to claim 1 tests apparatus for demonstrating, it is characterised in that: interior guide post (95)
Damaged surface movable sleeve is connected to wear ring, and the fixed hole flush-mounted in the first pilot hole (41) of the wear ring is intracavitary.
9. civil engineering arch structure according to claim 1 tests apparatus for demonstrating, it is characterised in that: the bottom end of pressing plate (97)
It is bonded with the rubber pad in inverted " c " shape structure, which fits in the top of donor (5).
10. civil engineering arch structure according to claim 1 tests apparatus for demonstrating, it is characterised in that: the bottom end of pedestal (1)
Rectangle is evenly equipped with universal wheel, and the side wall of the pedestal (1) is fixed with the push rod in inverted " u "-shaped structure, the top of pedestal (1) and bottom plate
(2) bottom end is in contact position coated with bonding agent, and the bottom end of bottom plate (2) is spaced apart the circular hole being equipped with for accommodating bonding agent.
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| CN201811226045.5A CN109115610A (en) | 2018-10-22 | 2018-10-22 | Civil engineering arch structure tests apparatus for demonstrating |
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| CN201811226045.5A CN109115610A (en) | 2018-10-22 | 2018-10-22 | Civil engineering arch structure tests apparatus for demonstrating |
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ID=64855094
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| CN201811226045.5A Pending CN109115610A (en) | 2018-10-22 | 2018-10-22 | Civil engineering arch structure tests apparatus for demonstrating |
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| CN112924276A (en) * | 2021-01-26 | 2021-06-08 | 浙江工业大学 | Unstable load device for detecting honeycomb arch and application method thereof |
| CN112924294A (en) * | 2021-01-26 | 2021-06-08 | 浙江工业大学 | Device and method for fully automatically detecting bearing capacity of honeycomb steel arch in plane |
| CN113689765A (en) * | 2021-08-27 | 2021-11-23 | 重庆交通大学 | Test arch support platform with adjustable span and test method thereof |
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Application publication date: 20190101 |