CN207633291U - The Integrated test facility of mobile anti-flood wall - Google Patents
The Integrated test facility of mobile anti-flood wall Download PDFInfo
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- CN207633291U CN207633291U CN201721075025.3U CN201721075025U CN207633291U CN 207633291 U CN207633291 U CN 207633291U CN 201721075025 U CN201721075025 U CN 201721075025U CN 207633291 U CN207633291 U CN 207633291U
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Abstract
The utility model provides a kind of bulk testing method and apparatus of mobile anti-flood wall, and to understand fully the comprehensive performance of mobile anti-flood wall comprehensively, support is provided for the reliability application of engineering.Leak test and column failure test are carried out by the Integrated test facility of mobile anti-flood wall, the integral status of mobile anti-flood wall can integrally be understood, understand the leakage situation of mobile anti-flood wall, stress and strain changes in center pillar stress variation and concrete foundation during leakage, understands leakage and stress and strain relationship.During column carries out overload failure, stress relation when simulation column is impacted by flood, the at this time stress and strain variation in upright post basic is found out weak spot, is improved to understand the intensity of mobile anti-flood wall on the whole.
Description
Technical field
The utility model is related to anti-flood walls, more particularly to the bulk testing method and apparatus of mobile anti-flood wall.
Background technology
Water is the first condition of human survival and development, and China city how riverine river and lake seashore side or be situated at the foot of a hill and beside a stream is built.
Due to the particularity in geographical location residing for city, it is faced with the threat of floods to some extent, so mostly using anti-flood wall and dike
It controls flood, since city riverine one carries traffic main artery, groups of building are intensive, sometimes because of the limitation of built engineering, or because of city
The needs of planning and development, or because native source is limited, have to use anti-flood wall, take up an area and remove to reduce.It is different anti-in order to cope with
There is mobile anti-flood wall in flood height or convenient for people's lives and ornamental seascape, but the leakage of mobile anti-flood wall is asked
Topic is a main problem of its flood control results, and in face of the impact of flood, and the intensity of mobile anti-flood wall is weakened after all,
Flood bursts mobile anti-flood wall in order to prevent, needs to test mobile anti-flood wall.
Utility model content
To solve the above problems, the utility model provides a kind of bulk testing method and apparatus of mobile anti-flood wall, to
The comprehensive performance for understanding fully mobile anti-flood wall comprehensively provides support for the reliability application of engineering.
The technical solution of the utility model is：A kind of bulk testing method of mobile anti-flood wall, it is characterised in that：Including oozing
Experimental method and column breaking test method are leaked, leakage experimental method carries out in prototype test area, and column breaking test method exists
Destructive testing area carries out, and is bottom plate below prototype test area and destructive testing area；
（One）It leaks experimental method and includes step：
（a）Cistern is built above the bottom plate in prototype test area, cistern is equipped with opening, and the both ends of opening are equipped with side
The side column midfeather of column, both ends is equipped with center pillar, and between side column and center pillar, flood control baffle is equipped between adjacent center pillar, prevents
Big vast baffle is combined with center pillar, side column blocks opening, is middle column foundation below center pillar, is connected by middle column foundation between center pillar and bottom plate
It connects, middle column foundation is reinforced concrete foundation；
（b）Water storage is carried out to cistern, when water storage is to certain altitude H1, stops water storage, through certain time, water level is down to
H2；With H2 for 0 moment, the water level H of different moments is recorded, the observation frequency is primary for 6h ~ 12h, until 150h stops, and hereafter, 300h
Observed stage is Hn again；During water-storing test, center pillar and baffle different moments strain data are recorded, it is different in middle column foundation
The reinforcing bar at moment and the strain data of concrete；
（Two）Column breaking test method includes the following steps：
（a）Above the bottom plate in destructive testing area or column is built in side, build on the bottom plate in destructive testing area or
It is provided with the load maintainer that column exerts a force, is upright post basic below column, upright post basic is reinforced concrete foundation；
（b）Failure test is carried out using overload method：Classification overloads, until column is destroyed with upright post basic；
Deformation and the destructive process that load lower pillar stands and upright post basic at different levels are observed in experiment, in loading procedure, record column is different
The strain at moment and change in displacement, the strain of reinforcing bar and concrete in upright post basic.
The construction in prototype test area includes the following steps：
（1）Build the bottom plate of proving ground：
A, smooth location, progress bottom cushion, center pillar blinding layer and side column blinding layer pour on smooth good place
It builds；
B, after bed course pours, upper progress reinforcing bar binding is poured in bottom cushion, center pillar blinding layer and side column blinding layer,
Welding, reserves the gap of center pillar built-in fitting and side column built-in fitting, in being installed again after the completion of waiting middle column foundation and side column basis to cast
Column built-in fitting and side column and built-in fitting or be mounted directly in the gap of center pillar built-in fitting and side column built-in fitting center pillar built-in fitting and
Side column built-in fitting；Reinforcing rib meter is installed on the reinforcing bar around center pillar built-in fitting, binds strain gauge, bottom plate, middle column foundation and side column
Basis is conserved using storehouse continuous placing mode casting concrete is led to, and completes applying for bottom plate, middle column foundation and side column basis
Work；Center pillar is built above the center pillar column built-in fitting of middle column foundation, side column is built above the side column built-in fitting on side column basis,
Strain gauge means are installed on center pillar, measure strain and the amount of deflection variation of center pillar；
（2）Build cistern：
Cistern is built on bottom plate, builds the reinforced concrete wall of cistern, the installation flood control baffle between side column and center pillar；
Strain gauge means are installed along flood control baffle tow sides, baffle installs strain gauge means with center pillar contact site；
（3）Cistern waterproof, inlet and outlet pipe lines are installed, ceiling is erected above cistern, complete building for prototype test area
If.
The construction in column destructive testing area includes the following steps：
（1）Build bottom plate and upright post basic：Smooth location, cast on smooth good place bottom cushion and upright post basic
Bed course, the assembling reinforcement on bottom cushion and upright post basic bed course, reserves the gap of column built-in fitting, and upright post basics is waited to cast
Cheng Houzai installs column built-in fitting or is mounted directly column built-in fitting in the gap of column built-in fitting；Around column built-in fitting
Reinforcing bar on reinforcing rib meter is installed, bind strain gauge, then casting concrete, is conserved, and completes bottom plate and upright post basic construction；
Column is built above the column built-in fitting of upright post basic, foil gauge measuring device is installed on column, measures the strain of column
Variation；
（2）, build installation load maintainer：Reaction frame is fixed on by several ground anchor bolts on bottom plate, and jack setting exists
Among column and reaction frame, one end is contacted with column, and the other end is contacted with reaction frame, in the another of the column opposite with jack
Object of reference is arranged in side, and displacement measuring device is equipped between column and object of reference, and measurement is opposite in the force lower pillar stand of jack
The displacement of object of reference.
A kind of Integrated test facility of mobile anti-flood wall, including prototype test area, column destructive testing area and experiment are standby
Use area；Each area includes bottom cushion and bottom plate, and bottom cushion is located at below bottom plate, and bottom plate is reinforced concrete structure；Prototype is tried
It tests between area and column destructive testing area, experiment spare area and is separated by the way that expansion joint is arranged on bottom plate；
Prototype test area further includes the cistern on bottom plate, and cistern is equipped with opening, and the both ends of opening are equipped with side column, both ends
Side column midfeather be equipped with center pillar, offer mounting groove on side column and center pillar, installation flood control baffle in mounting groove；Below center pillar
It is respectively equipped with middle column foundation, middle column foundation is Extended chemotherapy I, and it is pre-buried that center pillar is equipped between center pillar basis top and center pillar lower part
Part；Height where the lower end of middle column foundation is less than height where bottom plate lower end, and upper end and the bottom plate upper end of middle column foundation are located at together
One height；Installation measures the reinforcing rib meter of reinforcing bar strain on reinforcing bar in middle column foundation, and monitoring concrete is provided in middle column foundation
The strain gauge of variation；Flood control baffle and center pillar are equipped with strain gauge means；Cistern be equipped with discharge water, inlet and outlet pipe lines, storing
Ceiling is erected above pond；
Column destructive testing area further includes upright post basic, and upright post basic lower end height is less than height where bottom plate lower end,
Upright post basic is Extended chemotherapy II, and Extended chemotherapy II includes around the reinforced concrete foundation I and reinforced concrete foundation I at middle part
Reinforced concrete foundation II, the upper end level of reinforced concrete foundation I higher than reinforced concrete foundation II upper end level and
Bottom plate heights, II top of reinforced concrete foundation close to the side of the reinforced concrete foundation I of bottom cushion also are provided with bottom plate,
I top of reinforced concrete foundation is equipped with column, and it is pre-buried that column is equipped between the top of reinforced concrete foundation I and the lower part of column
Part；Installation measures the reinforcing rib meter of reinforcing bar strain on reinforcing bar in upright post basic, and monitoring concrete variation is provided in upright post basic
Strain gauge；The load maintainer of column force is equipped with above bottom plate, the other side of the column opposite with load maintainer is provided with
Object of reference, is provided with displacement measuring device between column and object of reference, column is equipped with foil gauge measuring device.
Load maintainer includes the reaction frame being located above bottom plate, and reaction frame is fixed on by several ground anchor bolts on bottom plate,
Jack is arranged among column and reaction frame, and one end is contacted with column, and the other end is contacted with reaction frame.
The reaction frame is gantry frame, is mounted on bottom plate, is fixed using anchor pole, gantry frame is placed on load cylinder
In the upper beam of frame.
The strain gauge is directly embedded in the concrete of upright post basic and middle column foundation, to monitor in concrete
The strain in portion is disposed about 3 vibrating string extensometers in column built-in fitting and center pillar built-in fitting, and vibrating string extensometer can same pacing
The temperature of the embedded point of amount.
Displacement measuring point is consistent with strain measurement point height on column.
Strain gauge means use resistance strain gage, each point layout three pieces on column, center pillar and flood control baffle
Mutually right-angle type foil gauge at 45 °, foil gauge are arranged in column twice, and three measuring points are arranged per side.
Displacement measuring device uses linear displacement transducer, and horizontal direction displacement is arranged close to the side of column on object of reference
Sensor.
The beneficial effects of the utility model are to carry out leak test and column by the Integrated test facility of mobile anti-flood wall
Failure test can integrally understand the integral status of mobile anti-flood wall, understand the leakage situation of mobile anti-flood wall, in leakage process
In center pillar stress variation and concrete foundation in stress and strain change, understand leakage and stress and strain relationship.It is opposing
During column carries out overload failure, stress relation of simulation column when being impacted by flood, at this time the stress in upright post basic and
Strain variation is found out weak spot, is improved to understand the intensity of mobile anti-flood wall on the whole.
Description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is B-B direction sectional view in Fig. 1.
Fig. 3 be in Fig. 1 C-C to sectional view.
Fig. 4 is the structural schematic diagram in column destructive testing area.
Fig. 5 is upstream face reinforcing bar arrangement of reinforcement around built-in fitting.
Fig. 6 is the A-A of Fig. 5 to sectional view.
Fig. 7 is that prototype test area directly pours built-in fitting reinforcing rib meter actual measurement relative value.
Fig. 8 is that prototype test area reserves slot built-in fitting reinforcing rib meter actual measurement relative value.
When Fig. 9 is prototype test area water storage different height, built-in fitting strain gauge actual measurement relative value is directly poured.
Figure 10 is prototype test area foil gauge（Laterally）Maximum value is surveyed with the height regularity of distribution.
Figure 11 is the oblique strain of destructive testing area column and load relational graph.
Figure 12 is the column radial displacement of destructive testing area and load relational graph.
Figure 13 is destructive testing area concrete strain and load relational graph.
Figure 14 is destructive testing area reinforcement stresses and load relational graph.
Figure 15 is the relational graph of destructive testing area column residual displacement and height.
Figure 16 is the front view that the reinforcing rib meter that prototype test area is mounted directly around method center pillar built-in fitting is laid with strain gauge.
Figure 17 is the left view of Figure 16.
Figure 18 is the vertical view of Figure 16.
Figure 19 is the master that prototype test area reserves that the reinforcing rib meter around slot Method for Installation center pillar built-in fitting is laid with strain gauge
View.
Figure 20 is the left view of Figure 19.
Figure 21 is the vertical view of Figure 19.
Figure 22 is the front view that the reinforcing rib meter around destructive testing area column built-in fitting is laid with strain gauge.
Figure 23 is the left view of Figure 22.
Figure 24 is the vertical view of Figure 22.
Specific implementation mode
As shown in Figs 1-4, a kind of Integrated test facility of mobile anti-flood wall, including prototype test area 27, column are destructive
Trial zone 28 and experiment spare area 29；Each area includes bottom cushion 1 and bottom plate 6, and bottom cushion 1 is located at 6 lower section of bottom plate, and bottom plate is
Reinforced concrete structure；Prototype test area and column destructive testing area, experiment are stretched between spare area by being arranged on bottom plate
Contracting seam 30 separates；
Prototype test area further includes the cistern 14 on bottom plate 6, and three face wall bodies of cistern 14 are reinforced concrete wall 31, another
Face is equipped with opening, and the both ends of opening are equipped with the side column 17 being connected with reinforced concrete wall, and side column is reinforced concrete pile, in the side column 17 at both ends
Between be equipped at intervals with center pillar 18, offer mounting groove 19 on reinforced concrete pile and center pillar 18, installation flood control baffle 20 in mounting groove 19；In
Column and side column are respectively arranged below with middle column foundation 21 and side column basis 22, and middle column foundation 21 and side column basis 22 are Extended chemotherapy I,
It is equipped with center pillar built-in fitting 23 between center pillar basis top and center pillar lower part, side column is equipped between side column basis top and side column lower part
Built-in fitting 24；Blinding layer, respectively center pillar blinding layer 25 and side column blinding layer 26, middle base for post are equipped with below Extended chemotherapy
Height where the lower end of plinth bed course 25 and side column blinding layer 26 is less than height, 21 He of middle column foundation where 1 lower end of bottom cushion
Height where the lower end on side column basis 22 is less than height where 6 lower end of bottom plate, middle column foundation 21 and basic 22 upper ends of side column and bottom
6 upper end of plate is located at sustained height；It is installed on reinforcing bar in middle column foundation 21 and measures the reinforcing rib meter that reinforcing bar strains, in middle column foundation 21
It is provided with the strain gauge of monitoring concrete variation；Baffle 20, center pillar 18 control flood equipped with strain gauge means；Cistern is equipped with and puts
Water, inlet and outlet pipe lines, erect ceiling above cistern.
Column destructive testing area further includes upright post basic bed course 2, and 2 lower end height of upright post basic bed course is less than bottom cushion
Height where 1 lower end, 2 top of upright post basic bed course are equipped with upright post basic 3, and upright post basic 3 is Extended chemotherapy II, Extended chemotherapy II
Reinforced concrete foundation II 5 around reinforced concrete foundation I 4 and reinforced concrete foundation I including middle part, armored concrete
The upper end level on basis I 4 is higher than 6 height of upper end level and bottom plate of reinforced concrete foundation II 5, the steel of close bottom cushion 1
II 5 top of reinforced concrete foundation of the side on reinforced concrete basis I 4 also is provided with bottom plate 6, and I 4 top of reinforced concrete foundation is set
There is column 7, column is located on the bottom plate in destructive testing area or bottom plate side, the top of reinforced concrete foundation I 4 and column 7
Lower part between be equipped with column built-in fitting 8；Installation measures the reinforcing rib meter of reinforcing bar strain, column base on reinforcing bar in upright post basic 3
The strain gauge of monitoring concrete variation is provided in plinth；6 top of bottom plate is equipped with load maintainer；Load maintainer includes above bottom plate
Reaction frame 9, reaction frame are fixed on by several ground anchor bolts on bottom plate 6, and jack 10 is arranged among column and reaction frame, and one
End is contacted with column, and the other end is contacted with reaction frame, the other side of the column opposite with jack, is provided with reference 11, column
Displacement measuring device 15 is provided between object of reference, column is equipped with foil gauge measuring device 16.Center pillar built-in fitting and column
The upstream face reinforcing bar arrangement of reinforcement of built-in fitting is identical, and the upstream face in prototype test area refers to one side of the built-in fitting towards water, destroys
The upstream face of property trial zone refers to the side that built-in fitting directly carries jack applied force.As shown in Figure 5 and Figure 6, upstream face steel
Muscle arrangement of reinforcement table is as shown in table 1；
Displacement measuring device uses linear displacement transducer, and horizontal direction displacement is arranged close to the side of column on object of reference
Sensor.
The bulk testing method of the mobile anti-flood wall, it is characterised in that：Include the following steps：
One, it builds, is built by the Integrated test facility structure of mobile anti-flood wall
1, the construction in prototype test area
（1）Build the bottom plate of proving ground：
A, smooth location, progress bottom cushion, center pillar blinding layer and side column blinding layer pour on smooth good place
It builds；
B, after bed course pours, reinforcing bar binding, weldering are carried out on bottom cushion, center pillar blinding layer and side column blinding layer
It connects, reserves the gap of center pillar built-in fitting and side column built-in fitting, center pillar is installed again after the completion of waiting middle column foundation and side column basis to cast
Built-in fitting and side column and built-in fitting are mounted directly center pillar built-in fitting and side in the gap of center pillar built-in fitting and side column built-in fitting
Column built-in fitting；Reinforcing rib meter is installed on the reinforcing bar around center pillar built-in fitting, in the upstream face, axis, back side of center pillar built-in fitting
Respectively one strain gauge of binding；Bottom plate, middle column foundation and side column basis are used using logical storehouse continuous placing mode casting concrete, and
Maintenance completes the construction of bottom plate, middle column foundation and side column basis to 28d ages；It is built above the center pillar built-in fitting of middle column foundation
Center pillar is made, side column is built above the side column built-in fitting on side column basis, strain gauge means are installed on center pillar and side column, is measured
The strain of center pillar and side column and amount of deflection variation；
（2）Build cistern：
Cistern, cistern useful storage area about 30.745m are built on bottom plate2, when water storage is to design height 1.8m,
Cistern volume is about 55.341m3；The reinforced concrete wall for building cistern, the installation flood control baffle between side column and center pillar；Along anti-
Big vast baffle tow sides install strain gauge means, and baffle installs strain gauge means with center pillar contact site；
（3）Cistern waterproof, inlet and outlet pipe lines are installed, ceiling is erected above cistern, complete building for prototype test area
If；
2, the construction in column destructive testing area
（1）Build bottom plate and upright post basic：Smooth location, cast on smooth good place bottom cushion and upright post basic
Bed course, the assembling reinforcement on bottom cushion and upright post basic bed course, reserves the gap of column built-in fitting, and upright post basics is waited to cast
Cheng Houzai installs column built-in fitting or is mounted directly column built-in fitting in the gap of column built-in fitting；Around column built-in fitting
Reinforcing bar on reinforcing rib meter is installed, respectively bind a strain gauge in the upstream face, axis, back side of column built-in fitting, then pour
Concrete, and conserve to 28d ages, complete bottom plate and upright post basic construction；It is built above the column built-in fitting of upright post basic
Column installs foil gauge measuring device on column, measures the strain variation of column；The bottom plate in alternate tests area is destroyed with column
The bottom plate of property trial zone is built together；
（2）, build installation load maintainer：Reaction frame is fixed on by several ground anchor bolts on bottom plate, is fixed using anchor pole,
Jack is arranged among column and reaction frame, and one end is contacted with column, and the other end is connect with load cylinder, load cylinder and thousand
Jin top horizontal connection, is placed in the upper beam of gantry frame, and the contact point of column top and jack is equipped with fixed jack
The fixation base of force side, by load cylinder, jack pair column pressure, jack is bidirectional hydraulic loading device；
In the other side of the column opposite with jack, object of reference is set, displacement survey is installed between column and object of reference
Measure device, displacement of the measurement in the opposite object of reference of force lower pillar stand of jack.
Load cylinder is horizontal addload oil cylinder, and horizontal addload oil cylinder is the important executive component of pilot system, pilot system
Regulation test load, 300 kN of thrust, oil cylinder stroke are applied to test specimen by oil cylinder：200mm.The work of horizontal addload oil cylinder
The support of stopper rod is supported using metal, standard configuration high precision wheel spoke type pull pressure sensor, and oil cylinder is loaded using electric loading system oil pump.
Two, it tests
1, in column destructive testing area, failure test is carried out using overload method：On the basis of being loaded onto normal load,
Classification overloads, until column is destroyed with upright post basic；Observe in test load lower pillar stands and upright post basic at different levels
Deformation and destructive process, test mid-term, be loaded onto 2 times of normal water ballast(ing)s, in loading procedure, record column different moments answer
Change piece, displacement count, upright post basic different moments reinforcing rib meter, strain gauge evidence, and wireless automatic collecting dress may be used in record
It sets and is recorded.If the mode that hydraulic jack continuously loads is taken in this experiment, respectively jack be loaded as 0kN, 25kN,
It is measured when 50 kN, 75 kN and 97 kN.
2, carry out water-storing test in prototype test area
Water storage is carried out to cistern, when water storage is to certain altitude H1, stops water storage, through certain time, water level is down to H2.With
H2 was 0 moment, recorded the water level H of different moments, and the observation frequency is that 6h ~ 12h is primary, until 150h stops, hereafter, 300h is observed again
Water level is Hn；During water-storing test, the automatic data collection instrument BGK- produced using Ji Kang instruments limited liability company
Micro-40 automatic collections and record center pillar and flood control baffle different moments strain sheet data, different moments reinforcing bar in middle column foundation
Meter, strain gauge evidence.
Bottom plate, upright post basic, center pillar blinding layer and side column blinding layer are plain concrete bed course；
Reinforcing rib meter is threaded through on the reinforcing bar in upright post basic and middle column foundation, for monitoring in upright post basic and middle column foundation
Reinforcement stresses variation；The strain gauge is directly embedded in the concrete in upright post basic and middle column foundation, to monitor
The strain of inside concrete is disposed about 3 vibrating string extensometers in upright post basic and middle column foundation, and vibrating string extensometer can be same
The temperature of the embedded point of pacing amount；
Displacement measuring point is consistent with strain measurement point height on column.
Strain gauge means use resistance strain gage, each point layout three pieces on column, center pillar and flood control baffle
Mutually right-angle type foil gauge at 45 °, foil gauge are arranged in column twice, and three measuring points are arranged per side.
Measuring apparatus specifically arrangement and interpretation of result
One, prototype test area
（1）The specific arrangement of the test measurement equipment in prototype test area
1, the arrangement of reinforcing rib meter
（1）It is mounted directly method center pillar built-in fitting surrounding and lays reinforcing rib meter 6, reinforcing rib meter lays such as Figure 16, Figure 17 and Figure 18
It is shown.
1. No. 1 reinforcing bar in arrangement of reinforcement（A diameter of 14mm, long 970mm, 1 135 ° of crotch）, at reinforcing bar crotch 500mm,
1 reinforcing rib meter, number Z1-R1 are arranged on the right side of 40 center pillar built-in fitting central axes of upstream face；
2. No. 2 reinforcing bars in arrangement of reinforcement（The stirrup of a diameter of 12mm, length 840-660-840）, 660mm flat segments middle parts
At the 300mm of position, nearest 1 stirrup on the right side of center pillar built-in fitting needs 1 reinforcing rib meter, number Z1-R2;
3. No. 3 reinforcing bars in arrangement of reinforcement（The longitudinal reinforcement of diameter 10mm, long 1940mm）, upstream face 40 the 1st layer additional one
The reinforcing bar of 12mm arranges reinforcing rib meter, number Z1-R3 in centre position 970mm；
4. the U-shaped steel muscle perpendicular to system axis, a diameter of 16mm, length 940-510-940 is vertical close to upstream face 40
At section 500mm, 1 reinforcing rib meter, number Z1-R4 are needed；
5. the longitudinal reinforcement of center pillar built-in fitting top plate lower part 6cm, the 1st, the 2nd diameter 16mm of upstream face, long 1910mm
Intermediate position 950mm arranges reinforcing rib meter, number Z1-R5, Z1-R6.
（2）Reinforcing rib meter 7 is laid around reserved slot Method for Installation center pillar built-in fitting, reinforcing rib meter lays such as Figure 19, Tu20He
Shown in Figure 21.
1. No. 1 reinforcing bar in arrangement of reinforcement（A diameter of 14mm, long 970mm, 1 135 ° of crotch）, away from center pillar built-in fitting top plate
At 560mm, arrange that 1 reinforcing rib meter, number Z2-R1 carry out pair with Z1-R1 on the right side of upstream face center pillar built-in fitting central axes
Than；
2. No. 3 reinforcing bars in arrangement of reinforcement（The longitudinal reinforcement of diameter 10mm, long 1940mm）, upstream face 40 the 1st layer additional one
The reinforcing bar of 12mm arranges that reinforcing rib meter, number Z2-R2 are compared with Z1-R3 in centre position 970mm；
3. No. 5 reinforcing bars in arrangement of reinforcement（The supporting embedded part U-shaped steel muscle of a diameter of 25mm, length 740-400-740）, center pillar
In long 740mm vertical sections away from 1 reinforcing rib meter of arrangement, number Z2-R3 at built-in fitting top plate 500mm on the right side of built-in fitting central axes；
4. perpendicular to system axis, a diameter of 16mm, long 940-510-940 U-shaped steel muscle, center pillar built-in fitting central axes
The long 940mm vertical sections upstream face 40 in right side, away from center pillar built-in fitting top plate 350mm at, arrange 1 reinforcing rib meter, number Z2-R4；
5. perpendicular to system axis, be welded on a diameter of 16mm on built-in fitting bottom plate, long 740-400-740 U-shaped steel
Muscle, long 740mm vertical sections upstream face on the left of center pillar built-in fitting central axes are located, 1 reinforcing rib meter of arrangement away from built-in fitting top plate 370mm,
Number is Z2-R5；
6. be parallel to system axis, close to upstream face the 1st, the 2nd a diameter of 16mm, long 940-400-940 it is U-shaped
Reinforcing bar, on the left of center pillar built-in fitting central axes long 940mm vertical sections away from center pillar built-in fitting top plate 370mm at, be respectively arranged 1 reinforcing bar
Meter, number Z2-R6, Z2-R7.
2, strain gauge is arranged
Strain gauge arranges 9 altogether, is described as follows：
Arrange that 1 strain gauge number is S-1, built-in fitting axis arranges a strain gauge number in built-in fitting upstream face bolt
For S-2, back side bolt is disposed about 1 strain gauge S-3, and two center pillars need 2 × 3=6 strain gauges altogether.It is mounted directly in method
Strain gauge is laid as shown in Figure 16, Figure 17 and Figure 18, is reserved slot Method for Installation meter and is laid as shown in Figure 19, Figure 20 and Figure 21.
3, foil gauge is arranged
（3）In middle column foundation, center pillar built-in fitting, upright post basic, column built-in fitting, foil gauge is arranged in contact site
Surrounding and center pillar middle section measure basis, center pillar column angle, center pillar middle section strain value, while coordinating the arrangement of displacement meter, survey
Determine the ess-strain and deformation values of baffle and center pillar.
（2）Prototype test area, water-storing test interpretation of result
When non-water storage（When water storage height is 0cm）It is set as 0MPa, the influence after investigation water storage to reinforcing rib meter stress.It does not store
When water（When water storage height is 0cm）It is set as 0 μ ε, investigates the influence strained to strain gauge after water storage.
Interpretation of result after the water storage of prototype test area
Attached drawing 7 is that prototype test area directly pours built-in fitting reinforcing rib meter actual measurement relative value（Hereinafter referred to as Z1 reinforcing rib meters）；It is attached
Fig. 8 is that prototype test area reserves slot center pillar built-in fitting reinforcing rib meter actual measurement relative value（Hereinafter referred to as Z2 reinforcing rib meters）；Attached drawing 9 is original
When type trial zone water storage different height, center pillar built-in fitting strain gauge actual measurement relative value is directly poured；Attached drawing 10 is prototype test area
Foil gauge（Laterally）Maximum value is surveyed with the height regularity of distribution.
（1）By reinforcing rib meter measured result it is found that a suddenly change can occur for Initial impoundment, Z1 reinforcing rib meters stress, hereafter
Restore normal, and with the increase of water storage height, gradually develops to tension direction or tensile stress gradually increases, trend is substantially just
Really.Certainly, about Initial impoundment reinforcing rib meter stress mutation the phenomenon that, and it is normal, this is because it is pre-buried directly to pour center pillar
What part was formed is the overall structure of center pillar built-in fitting-middle column foundation, therefore in first load-bearing, and reinforcing rib meter reaction is more sensitive,
And the phenomenon that will produce a stress concentration, but this phenomenon can adapt to the outer variation carried with reinforcing rib meter and gradually eliminate.
Different from Z1, Z2 is center pillar built-in fitting made of reserved slot pours, and center pillar built-in fitting notch aperture portion is in
Column foundation part does not form overall structure, therefore, in first filling, only Z2-R2 significant reactions（Note：It can by Fig. 7-24
Knowing, Z2-R2 is located in center pillar base concrete, rather than as other reinforcing rib meters are laid in reserved slot concrete）, other steel
Muscle meter changes then unobvious.It follows that reserved slot method can be such that center pillar column-center pillar built-in fitting-slot concrete is formed relatively
A kind of independent component, rather than as direct casting method, center pillar built-in fitting forms entirety with middle column foundation.Therefore, it reserves
Slot method is relatively blunt for general safety.
Certainly, from the point of view of water-storing test, for reinforcing rib meter after water storage is normal, stress is little, such as in normal pool level 1.8m,
Maximum tension stress is respectively 0.78MPa（Z1-R2）And 0.87MPa（Z2-R4）.
（2）By strain gauge measured result it is found that after first filling, concrete strain gauge also varies widely, and is storing
Start to tend to be normal when water is to 0.8cm, when water storage reaches 1.8m, Z1-S1 is mounted directly method and reaches maximum 5.18 microstrains
（It stretches）, Z2-S2 reserves slot method and reaches maximum 5.94 microstrains（It stretches）.And it is micro- with the Z1-S1 of Z2-S2 same positions
Strain only 1.88（It stretches）.Z1-S3 and Z2-S3 is in pressured state.
It follows that compared to method is mounted directly, reserved slot method can be such that concrete pulling stretching strain increases, although measured value is not
Greatly, but from trend it is relatively blunt.
（3）After water storage, each position foil gauge makes a response to water ballast(ing), with foil gauge in the middle part of baffle of controlling flood（Laterally）For
Example illustrates.By foil gauge measured result it is found that foil gauge distance basis is closer, the maximum strain value of generation is bigger, phase
Anti- higher, strain value is just smaller, and measuring maximum tension in the middle part of actual measurement the first block baffle of bottom strains 385 microstrains, by lower
Upper 7th block baffle measures -4 microstrains of strain, surveys the basic change that maximum strain value meets quadratic equation with one unknown from the bottom to top
Law.
Two, destructive testing area
（1）Test measurement equipment is arranged
1, strain rosette C1, C2 is arranged on column two sides, I upper end of reinforced concrete foundation apart from upright post basic
Face 1.02m, for observing column self-deformation；Displacement meter A1, A2, A3 are arranged in column back side, respectively apart from upright post basic
I upper surface height of reinforced concrete foundation be 0.25m, 1.02m and 1.57m, integrally conjugated for measuring column.
2, reinforcing rib meter 4 is laid around destructive testing built-in fitting, as shown in Figure 22, Figure 23 and Figure 24.
1. No. 1 reinforcing bar in arrangement of reinforcement（A diameter of 14mm, long 970mm, 1 135 ° of crotch）, away from column built-in fitting top plate
At 380mm, 1 reinforcing rib meter arrangement, number R1 are arranged on the right side of 40 column built-in fitting central axes of upstream face；
2. No. 2 reinforcing bars in arrangement of reinforcement（The stirrup of a diameter of 12mm, length 840-660-840）, 660mm flat segments middle parts
1 reinforcing rib meter, number R2 are arranged in position on the right side of column built-in fitting central axes；
3. No. 3 reinforcing bars in arrangement of reinforcement（The longitudinal reinforcement of diameter 10mm, long 1940mm）, position is arranged among reinforcing bar, is met
The 1st layer of the water surface 40 needs 1 reinforcing rib meter, number R3（At column built-in fitting top plate 100mm）；
4. the U-shaped steel muscle perpendicular to system axis, a diameter of 16mm, length 940-510-940 is vertical close to upstream face 40
At section 480mm, arrangement on the right side of column built-in fitting central axes arranges 1 reinforcing rib meter, number R4；
3, strain gauge arranges 2 altogether, and as shown in Figure 22, Figure 23 and Figure 24,1 is arranged in 40 bolt of column built-in fitting upstream face
A strain gauge number is S1, column built-in fitting axis arranges that a strain gauge number is S2.
（2）Destructive testing area carries out failure test analysis using using overload method
When load, as shown in Fig. 11, the oblique strain C1 and C2 of column is changed linearly with load, loading curve and unloading
Curve is almost the same, and the directions C1 and C2 are opposite, numerical value is close, under 50kN and 97kN loads strain value respectively about 500 μ ε and
1000 μ ε illustrate to be constantly in elastic stage in loading procedure central post.As shown in Fig. 12, column overall radial displacement performance
It is that top is more than lower part, maximum value appears in column top, and if displacement meter A3 is 9.8mm in 50kN durations, when 97kN is
Nonlinear change is presented with loads change in 17.1mm, column radial shift.As shown in Fig. 15, A1, A2 and A3 are surveyed after unloading
Residual displacement is respectively 0.17mm, 0.36mm and 0.50mm, and residual displacement and height where displacement meter are just in a linear relationship, i.e.,
Column is also at elastic stage, therefore the residual displacement should be caused by the upright post basic of column built-in fitting.
By strain-load curve of 13 concrete of attached drawing it is found that being loaded onto 25kN or so, concrete i.e. by elastic stage into
Enter the plastic stage, if S1 and S2 is to respectively reach 97.34 μ ε and -389.47 μ ε being loaded onto 97kN, S1 is already close to mixed at this time
Solidifying soil ultimate elongation value, the overstrain after unloading is respectively 6.50 μ ε and -26.39 μ ε.This point can also be from attached drawing
Stress-load curve of 14 reinforcing rib meters finds out that when load is no more than 25 kN, stress is changed linearly with load, illustrates steel at this time
Muscle is in the elastic stage of compatible deformation with concrete, and continuing load, then stress shows nonlinear change with load, and unloads
After there are residual stress, value is respectively 0.39 MPa（R1）、0.20 MPa（R2）、0.16 MPa（R3）With 0.10 MPa
（R4）, HRB335 grades of reinforcing bars are used due to testing, reinforcement stresses reach far away its yield condition after load, therefore reinforcing rib meter is shown
Residual stress be concrete plastic deformation caused by.In addition, the stress rule overall performance of reinforcing rib meter is R2 ＞ R1 ＞ R4 ＞
R3, is such as loaded onto 97kN, and R1 ~ R4 actual measurement maximum stress values are respectively 8.50 MPa, 12.50 MPa, 2.70 MPa, 3.63MPa,
When illustrating column by horizontal loading, column built-in fitting lateral forces are maximum, followed by column built-in fitting upstream face, therefore, if hair
Raw to destroy, crack start should gradually be developed from column built-in fitting two sides to upstream face.
Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these should also be considered as
The scope of protection of the utility model.
Claims (7)
1. a kind of Integrated test facility of mobile anti-flood wall, it is characterised in that：Including prototype test area（27）, the examination of column destructiveness
Test area（28）With experiment spare area（29）；Each area includes bottom plate（6）, bottom plate is reinforced concrete structure；Prototype test area with it is vertical
By the way that expansion joint is arranged on bottom plate between column destructive testing area, experiment spare area（30）It separates；
Prototype test area further includes bottom plate（6）On cistern（14）, cistern（14）Equipped with opening, the both ends of opening are equipped with side
Column（17）, the side column at both ends（17）Midfeather is equipped with center pillar（18）, side column（17）With center pillar（18）On offer mounting groove
（19）, mounting groove（19）Interior installation flood control baffle（20）；Center pillar is respectively arranged below with middle column foundation（21）, middle column foundation（21）For
Extended chemotherapy I is equipped with center pillar built-in fitting between center pillar basis top and center pillar lower part（23）；Middle column foundation（21）Lower end where
Height is less than bottom plate（6）Height, middle column foundation where lower end（21）Upper end and bottom plate（6）Upper end is located at sustained height；Center pillar
Basis（21）Installation measures the reinforcing rib meter of reinforcing bar strain, middle column foundation on interior reinforcing bar（21）Inside it is provided with monitoring concrete variation
Strain gauge；Flood control baffle（20）And center pillar（18）It is equipped with strain gauge means；Cistern be equipped with discharge water, inlet and outlet pipe lines,
Ceiling is erected above cistern；
Column destructive testing area further includes upright post basic（3）, upright post basic（3）Lower end height is less than bottom plate（6）Where lower end
Highly, upright post basic（3）For Extended chemotherapy II, Extended chemotherapy II includes the reinforced concrete foundation I at middle part（4）And reinforced concrete
Reinforced concrete foundation II around earth foundation I（5）, reinforced concrete foundation I（4）Upper end level be higher than reinforced concrete
Plinth II（5）Upper end level and bottom plate（6）Highly, close to bottom cushion（1）Reinforced concrete foundation I（4）Side steel
Reinforced concrete basis II（5）Top also is provided with bottom plate（6）, reinforced concrete foundation I（4）Top is equipped with column（7）, reinforced concrete
Earth foundation I（4）Top and column（7）Lower part between be equipped with column built-in fitting（8）；Upright post basic（3）Pacify on interior reinforcing bar
Dress measures the reinforcing rib meter of reinforcing bar strain, and the strain gauge of monitoring concrete variation is provided in upright post basic；Bottom plate（6）Top is equipped with
The load maintainer of column force, the other side of the column opposite with load maintainer is provided with object of reference（11）, column and reference
Displacement measuring device is provided between object（15）, column is equipped with foil gauge measuring device（16）.
2. the Integrated test facility of mobile anti-flood wall according to claim 1, it is characterised in that：Load maintainer includes being located at
Bottom plate（6）The reaction frame of top（9）, reaction frame is fixed on bottom plate by several ground anchor bolts（6）On, jack（10）Setting exists
Among column and reaction frame, one end is contacted with column, and the other end is contacted with reaction frame.
3. the Integrated test facility of mobile anti-flood wall according to claim 2, it is characterised in that：The reaction frame is dragon
Door frame is mounted on bottom plate, is fixed using anchor pole, be placed in the upper beam of gantry frame on load cylinder.
4. the Integrated test facility of mobile anti-flood wall according to claim 1, it is characterised in that：The strain gauge is direct
It is embedded in the concrete of upright post basic and middle column foundation, to monitor the strain of inside concrete, in column built-in fitting in
Column built-in fitting is disposed about 3 vibrating string extensometers, and vibrating string extensometer can the embedded temperature put of synchro measure.
5. the Integrated test facility of mobile anti-flood wall according to claim 1, it is characterised in that：Displacement measuring point on column
It is consistent with strain measurement point height.
6. the Integrated test facility of mobile anti-flood wall according to claim 1, it is characterised in that：Strain gauge means use
Resistance strain gage, the mutual right-angle type foil gauge at 45 ° of each point layout three pieces on column, center pillar and flood control baffle, is answered
Become piece and be arranged in column twice, three measuring points are arranged per side.
7. the Integrated test facility of mobile anti-flood wall according to claim 1, it is characterised in that：Displacement measuring device uses
Linear displacement transducer arranges horizontal direction displacement sensor on object of reference close to the side of column.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721075025.3U CN207633291U (en) | 2017-08-25 | 2017-08-25 | The Integrated test facility of mobile anti-flood wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721075025.3U CN207633291U (en) | 2017-08-25 | 2017-08-25 | The Integrated test facility of mobile anti-flood wall |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401141A (en) * | 2017-08-25 | 2017-11-28 | 华北水利水电大学 | The bulk testing method and apparatus of mobile anti-flood wall |
| CN111551356A (en) * | 2020-05-15 | 2020-08-18 | 浙江工业大学 | Expanded head anchor rod group anchor test device and test method thereof |
| CN113737712A (en) * | 2021-09-14 | 2021-12-03 | 武汉胜浪工程有限公司 | Assembled aluminum alloy flood control wall still water test device |
| CN111551356B (en) * | 2020-05-15 | 2024-06-11 | 浙江工业大学 | Enlarged head anchor rod group anchor test device and test method thereof |
-
2017
- 2017-08-25 CN CN201721075025.3U patent/CN207633291U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401141A (en) * | 2017-08-25 | 2017-11-28 | 华北水利水电大学 | The bulk testing method and apparatus of mobile anti-flood wall |
| CN107401141B (en) * | 2017-08-25 | 2023-02-03 | 华北水利水电大学 | Integral test method and device for movable flood control wall |
| CN111551356A (en) * | 2020-05-15 | 2020-08-18 | 浙江工业大学 | Expanded head anchor rod group anchor test device and test method thereof |
| CN111551356B (en) * | 2020-05-15 | 2024-06-11 | 浙江工业大学 | Enlarged head anchor rod group anchor test device and test method thereof |
| CN113737712A (en) * | 2021-09-14 | 2021-12-03 | 武汉胜浪工程有限公司 | Assembled aluminum alloy flood control wall still water test device |
| CN113737712B (en) * | 2021-09-14 | 2023-12-05 | 武汉胜浪工程有限公司 | Assembled aluminum alloy flood control wall still water test device |
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