CN112432890B - Full-course monitoring device for rust cracking behavior of reinforced concrete and mounting method thereof - Google Patents
Full-course monitoring device for rust cracking behavior of reinforced concrete and mounting method thereof Download PDFInfo
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- CN112432890B CN112432890B CN202011113406.2A CN202011113406A CN112432890B CN 112432890 B CN112432890 B CN 112432890B CN 202011113406 A CN202011113406 A CN 202011113406A CN 112432890 B CN112432890 B CN 112432890B
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 26
- 238000012806 monitoring device Methods 0.000 title claims abstract description 14
- 238000005336 cracking Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 146
- 239000004567 concrete Substances 0.000 claims abstract description 112
- 230000007246 mechanism Effects 0.000 claims abstract description 111
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 230000007797 corrosion Effects 0.000 claims description 38
- 238000005260 corrosion Methods 0.000 claims description 38
- 230000008093 supporting effect Effects 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 12
- 239000013535 sea water Substances 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 3
- 241000719178 Carangoides ruber Species 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 42
- 230000000694 effects Effects 0.000 abstract description 27
- 238000004088 simulation Methods 0.000 abstract description 17
- 238000003825 pressing Methods 0.000 description 8
- 238000011160 research Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 241000276694 Carangidae Species 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 150000001804 chlorine Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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Abstract
The invention discloses a full-course monitoring device for reinforced concrete rust cracking behavior and an installation method thereof, wherein the device comprises a base, a fixing mechanism, a sealing mechanism and a rust generation mechanism, wherein the fixing mechanism and the sealing mechanism are arranged on the base, the fixing mechanism is arranged in the sealing mechanism, a connecting pipeline is arranged between the sealing mechanism and the rust generation mechanism, the fixing mechanism comprises a bottom plate, a fixing screw rod, a fixing plate and a jack, the fixing screw rod is arranged on the bottom plate, the fixing plate is arranged on the fixing screw rod, and the jack is arranged on the fixing plate; the method comprises the steps of a, preparing; b. mounting and fixing a concrete member; c. connecting a sealing frame; d. the generating frame is connected with the blower and fixed; e. testing and detecting, wherein the steps are five; the invention can realize the correspondence of different simulation conditions among different concrete members, the simulation conditions can be dynamically adjusted, and the adjustment is convenient; the installation method can be used for conveniently and rapidly installing, improves the installation efficiency and the installation effect, and saves the time required by installation.
Description
Technical Field
The invention belongs to the technical field of reinforced concrete, and particularly relates to a full-course monitoring device for rust cracking behavior of reinforced concrete and an installation method thereof.
Background
The causes of deterioration in durability of the reinforced concrete structure can be classified into two main types. One is corrosion and deterioration of the concrete material itself; the other is rust of the steel bars in the concrete. However, the corrosion of the steel bar caused by chloride ions is more serious in two reasons. The coastline of China is the third world, reaching 35000km; the number of the salt lakes in China exceeds 1000, and ice and salt are also scattered on the winter roads in the most northern areas of Yangtze river. The damage to the concrete structure caused by corrosion of the reinforcing steel bars after the invasion of chlorine salt is a common disease. Therefore, it is particularly important to study the durability of reinforced concrete members in a chloride salt environment. The durability of concrete under realistic conditions has a very close relationship with the load. The concrete durability achievement under the action of a large number of no loads is difficult to accurately reflect the state of the structure, is used for guiding engineering practice, and is likely to exaggerate the durability of the structure. Therefore, the method has important practical significance for researching the durability of the chloride corrosion concrete structure under the action of load.
The existing reinforced concrete rust crack test device adopts the steel bar electrifying to accelerate the corrosion of the steel bar so as to study the long-term time-varying mechanical property of the reinforced concrete member under the coupling action of load and environment, however, under the condition, the influence of the corrosion of the steel bar on the reinforced concrete member can be studied, and the test data are harder to truly reflect the complex actual condition.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a full-course monitoring device and method for the rust cracking behavior of reinforced concrete, which can be more similar to the rust situation of a concrete member in the actual use process, can more accurately acquire data similar to a natural exposure test, and can realize the corresponding different simulation situations among different concrete members in order to solve the influence of the rust cracking behavior of the reinforced concrete on the durability of the concrete member, and has the advantages of small occupied area, convenient regulation, easy control, dynamic regulation of the simulation situations and convenient regulation; the installation method can be used for conveniently and rapidly installing, improves the installation efficiency and the installation effect, and saves the time required by installation.
In order to solve the technical problems, the invention adopts the following technical scheme:
full process monitoring devices of reinforced concrete rust crack behavior, its characterized in that: including base, fixed establishment, sealing mechanism and corrosion generation mechanism, fixed establishment and sealing mechanism all locate on the base, and sealing mechanism locates in the sealing mechanism, is equipped with connecting tube between sealing mechanism and the corrosion generation mechanism, and fixed establishment includes bottom plate, fixing screw, fixed plate and jack, and fixing screw locates on the bottom plate, and the fixed plate is located on the fixing screw, and the jack is located on the fixed plate. The jack is used for applying stress to the concrete member, the sealing mechanism is communicated with the corrosion generating mechanism, the corrosion of seawater to the concrete member in a natural state is simulated through the corrosion generating mechanism, the durability research of concrete is facilitated, and the corrosion generating device can be used for realizing the corresponding different simulation conditions between different concrete members. The floor area is small, the simulation condition is convenient to adjust, and the control is easy. The sealing mechanism can isolate the contact between the concrete member and the outside, and interference and errors are reduced. A pressure sensor is arranged between the jack and the concrete member to detect the pressure. The fixing mechanism is connected with the rust generation mechanism through the connecting pipe, and can be detached and independently used when the rust generation mechanism is not needed, so that the use is more convenient and flexible.
Further, the bottom plate is equipped with the slide rail, is equipped with the slider on the slide rail, slider and slide rail sliding connection, and the slider is equipped with the connecting rod, and the connecting rod is equipped with the backup pad, and the backup pad rotates with the connecting rod to be connected, and the bottom plate is equipped with spacing frame, spacing frame spacing backup pad, and the backup pad is equipped with the bracing piece, and the bracing piece is equipped with the side lever, and the backup pad is equipped with the stopper, and the stopper is equipped with the side spout, and the side spout is located to the side lever, and the backup pad is equipped with first bellying, and the bracing piece is equipped with first recess, and first recess card is on first bellying, and it has the fixed pin to lead to between first recess and the first bellying. Through the sliding connection form of backup pad, made things convenient for concrete member's setting, the backup pad can rotate, then makes to set up vertical concrete member more convenient on the bottom plate. Compare traditional direct hoist and mount transport, through improving fixed knot constructs, can make things convenient for concrete member's setting, and can not need hoist and mount for do not need the loop wheel machine in the installation, the layer height requirement to the laboratory is showing and is reducing. The support plate in sliding connection can be more convenient for adjust the position of concrete member on the bottom plate, and convenient adjustment can be convenient for the adjustment of support plate simultaneously. The backup pad sets up the bracing piece and can realize, and concrete member is connected in the backup pad, can be more convenient when adjusting concrete member and position, avoids concrete member and backup pad separation. The limiting block, the first protruding portion and the first groove can improve the connection effect of the supporting plate and the supporting rod, and improve the installation effect and the installation accuracy of the concrete member.
Further, sealing mechanism includes sealing frame and sealed lid, and sealing frame locates on the base, and sealing frame and base bolted connection, sealing frame are equipped with the seal groove, and sealed lid is located in the seal groove, and sealed lid is equipped with changeing the cover, changes the cover and is connected with sealed lid rotation, changes the cover and locates on the fixing screw, changes cover and fixing screw threaded connection. The sealing mechanism is used for blocking the connection between the concrete member and the external environment, reducing the influence of the external environment on the concrete member in the test process and reducing the interference and error. Sealing frame and base detachable connection have made things convenient for concrete member's installation, just can install sealing frame after installing concrete member, sealed lid realizes being connected with fixed screw through changeing the cover, it is convenient to connect, it is effectual to connect, accomplish the counterpoint of changeing cover and fixing screw promptly with sealed cover card in the seal groove, it is convenient to fix a position, afterwards rotate changeing the cover, fix sealed cover card fastening on fixing screw, can connect sealed lid and sealing frame simultaneously, play sealed effect, sealed effectual, can be connected with fixing screw to sealing frame's upper portion simultaneously, play the supporting role, make sealing frame's upper portion atress also be difficult for bending deformation.
Further, the fixing screw is provided with a fixing frame, the fixing frame is provided with a fixing block, the fixing block is provided with a fixing groove, the sealing frame is provided with a fixing strip, the fixing strip is arranged in the fixing groove, the fixing strip is in sliding connection with the fixing groove, the fixing block supports the fixing frame, the fixing frame is provided with a pressing rod, the pressing rod is provided with a guide rod, the guide rod is arranged on the fixing frame and is in sliding connection with the fixing frame, and the fixing frame is provided with a jacking bolt which jacks the pressing rod. The fixed frame supports the concrete member through the compression bar, avoids the inclination of the concrete member, and is convenient for the jack to apply load. Meanwhile, the fixing frame plays a supporting role on the middle part of the sealing frame, so that the sealing frame is prevented from being deformed under stress, and the connection strength and the connection effect of the sealing frame and the fixing mechanism are improved. The cooperation of sliding strip and spout also makes the installation of sealing frame more convenient, improves sealing frame and fixed frame's connection effect.
Further, the corrosion generation mechanism comprises a generation frame, a blower and a sealing plate, wherein the generation frame is provided with a guide rail, a slide bar is arranged on the guide rail, a fixing frame is arranged on the slide bar, the blower is arranged on the fixing frame, a fixing rod is arranged on the fixing frame, a connecting groove is formed in the fixing rod, a connecting block is arranged on the blower, a connecting bolt is arranged in the connecting groove, and one end of the connecting bolt penetrates through the connecting groove and is connected with a nut at the other end of the connecting block. The rust generation mechanism simulates the condition of strong wind through the blower, and simultaneously realizes the adjustment of the blower height by utilizing the form of the guide rail and the slide bar, so that the blower height can be adjusted according to the use requirement, the use is more convenient, and the fixing of the blower is convenient due to the cooperation of the connecting groove and the connecting bolt, and the fixing effect is good. Can water injection simulate the erosion under different circumstances in the corrosion mechanism, the research when filling up water and being used for simulating concrete member and being submerged by the sea water, pour into a small amount of water into to utilize the air among air-blower circulation corrosion mechanism and the sealing mechanism to simulate the big wind condition, can utilize the shower head in the connecting connection pipeline to simulate the condition that rainwater and air humidity are big simultaneously, realize the simulation of dynamic high range multi-angle, simulation effect is better, and it is more convenient to adjust.
Further, connecting tube is equipped with diaphragm and shower head, and the shower head is located connecting tube's top, and the diaphragm rotates with connecting tube to be connected, and connecting tube is equipped with spacing, and spacing is spacing connecting tube's rotation. The transverse baffle is used for separating the connecting pipeline, so that the wind power circulation in the connecting pipeline can be facilitated, and the product shower head can play a role in humidifying. The transverse baffle plate can be turned up when not in use, and the use is more convenient.
The method for installing the full process monitoring device for the rust cracking behavior of the reinforced concrete is characterized by comprising the following steps of:
a. preparation:
And each part in the fixing mechanism, the sealing mechanism and the rust generation mechanism is inspected, so that the problems of damage, missing, abnormal work and the like of the parts are avoided. The device is prepared before installation, so that subsequent installation work can be smoothly carried out, unnecessary troubles are avoided, and the installation efficiency is effectively improved.
B. And (3) mounting and fixing the concrete member:
the concrete member is fixed on the base, and the fixing plate and the jack are installed. And the concrete member is fixed, so that the subsequent parts are convenient to install.
C. and (3) connection of a sealing frame:
The sealing frame is sleeved into the base from the top, fixing strips of the sealing frame are aligned with fixing grooves of the fixing frame when the sealing frame is sleeved, then the sealing frame is sleeved to the bottom of the base, sealing strips are arranged between the sealing frame and the base, the sealing frame is fixed on the base by bolts, a monitoring unit is connected to a concrete member, and then a sealing cover is sealed. Sealing effect is improved to the sealing strip that utilizes when sealing frame connects, after connecting detecting element, seals the interference that sealed lid isolated external many pairs of concrete member detected, and sealing frame simple to operate, the installation effect is good, has practiced thrift the required time of installation, has improved installation effectiveness.
D. generating frame connection and fixing of a blower:
Connecting the connecting pipeline to the generating frame and the sealing frame, fixing the blower to the fixing frame, sliding the fixing frame into the guide rail, and fixing the fixing frame by using connecting bolts.
E. and (5) testing.
Further, the detailed steps of step b are: the concrete member is installed before the outward slip of backup pad, then upset, afterwards connect the guide slope on the base, be convenient for with the concrete member to the same high with the base, afterwards utilize the guide slope with the concrete member lift to the same high with the base, the backup pad makes the backup pad can not slide on the slide rail, afterwards inwards promote the concrete member for the concrete member is laminated with the backup pad, afterwards with bracing piece card in the backup pad and chucking, let in the fixed pin between first bellying and first recess fixed, afterwards release the fixed of backup pad, inwards promote the concrete member to the end, afterwards upwards lift the one end that the concrete is not connected with the backup pad, make the concrete member erect and prevent, afterwards embolia fixed frame on fixed screw, utilize the bolt of fixed frame upper and lower both ends to adjust the position of fixed frame on fixed screw, afterwards screw tightening jack bolt makes the depression bar jack tightly on the concrete member, afterwards set up fixed plate and jack and fixed. In the setting process of the concrete member, the sliding and overturning characteristics of the supporting plate are utilized, so that the concrete member is placed more simply and conveniently, and the concrete member is placed without being hoisted by large equipment, so that the concrete member is safer and more efficient. The concrete member is placed in a more accurate position and has a better placement effect.
Further, the test detection in step e comprises the following detailed steps: after the fixing mechanism, the sealing mechanism and the corrosion generating mechanism are connected, seawater is injected into the corrosion generating mechanism, and then the blower and the spray header are started to detect the working conditions of the sealing mechanism and the corrosion generating mechanism, so that the water leakage is avoided. The test detects the connection effect of each part, avoids the condition of revealing to influence the monitoring, guarantees the normal work of air-blower and shower head.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
When the reinforced concrete member corrosion protection device is used, the water level height in the sealing frame and the generating frame can be adjusted, different humidity wind can be blown out by matching with the blower and the spray header, different natural exposure environments are simulated, and the influence of the reinforced concrete member corrosion condition on the reinforced concrete durability is studied. The invention can realize the corresponding different simulation conditions among different concrete members, has small occupied area, is convenient to adjust and easy to control, and has the advantages of dynamic adjustment of the simulation conditions and convenient adjustment. The rust generation mechanism simulates the condition of strong wind through the blower, and simultaneously realizes the adjustment of the blower height by utilizing the form of the guide rail and the slide block, so that the blower height can be adjusted according to the use requirement, the use is more convenient, and the fixing of the blower is convenient due to the cooperation of the connecting groove and the connecting bolt, and the fixing effect is good. Corrosion under different conditions can be simulated by water injection in the corrosion generation mechanism, and the filled water is used for simulating the research when the concrete member is submerged by seawater.
The invention is prepared by a; b. mounting and fixing a concrete member; c. connecting a sealing frame; d. the generating frame is connected with the blower and fixed; e. the test detection is carried out, the setting of the concrete member and the installation of the fixing mechanism, the sealing mechanism and the rust generation mechanism are realized in five steps, the installation is convenient, the installation effect is good, the installation time is saved, large-scale equipment is not needed in the installation process, the installation precision is high, the implementation is convenient, and the installation of a small site can be adapted.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic structural diagram of a full process monitoring device for the rust cracking behavior of reinforced concrete according to the present invention;
FIG. 2 is a schematic view of a sealing mechanism of the present invention disposed on a base;
FIG. 3 is a schematic view of the structure of the concrete member of the present invention disposed in a fixing mechanism;
FIG. 4 is a schematic view of the construction of the concrete element of the present invention;
FIG. 5 is a schematic view of a structure of a fixing frame according to the present invention;
FIG. 6 is a schematic diagram showing the structure of the support plate turned over in the present invention;
FIG. 7 is a schematic view showing the structure of a support plate according to the present invention;
FIG. 8 is a schematic view of a support bar according to the present invention;
FIG. 9 is a schematic view showing a structure in which a seal frame is mounted on a base in the present invention;
FIG. 10 is a schematic view of the structure of the seal cap of the present invention;
FIG. 11 is a schematic view of a rust generation mechanism according to the present invention;
Fig. 12 is a schematic structural view of a connecting pipe according to the present invention.
In the figure, a 1-base; 2-a fixing mechanism; 3-a sealing mechanism; 4-a rust generation mechanism; 5-connecting pipelines; 6-a bottom plate; 7-fixing the screw; 8-fixing plates; 9-jack; 10-sliding rails; 11-a slider; 12-connecting rods; 13-a support plate; 14-a limit frame; 15-supporting rods; 16-side bars; 17-limiting blocks; 18-side sliding grooves; 19-a first boss; 20-a first groove; 21-fixing pins; 22-sealing frame; 23-sealing cover; 24-sealing the groove; 25-turning sleeve; 26-a fixed frame; 27-a fixed block; 28-a fixed groove; 29-fixing strips; 30-pressing a rod; 31-a guide rod; 32-pushing bolts; 33-generating a frame; 34-blower; 35-sealing plates; 36-a guide rail; 37-slide bar; 38-fixing frame; 39-a fixed rod; 40-connecting grooves; 41-connecting blocks; 42-connecting bolts; 43-a transverse baffle; 44-a spray header; 45-limiting strips; 46-concrete member.
Detailed Description
As shown in fig. 1 to 12, the full process monitoring device for the rust cracking behavior of the reinforced concrete comprises a base 1, a fixing mechanism 2, a sealing mechanism 3 and a rust generating mechanism 4, wherein the fixing mechanism 2 and the sealing mechanism 3 are arranged on the base 1, the fixing mechanism 2 is arranged in the sealing mechanism 3, a connecting pipeline 5 is arranged between the sealing mechanism 3 and the rust generating mechanism 4, the fixing mechanism 2 comprises a bottom plate 6, a fixing screw 7, a fixing plate 8 and a jack 9, the fixing screw is arranged on the bottom plate 6, the fixing plate 8 is arranged on the fixing screw 7, and the jack 9 is arranged on the fixing plate 8. The jack 9 is used for applying stress to the concrete member, the sealing mechanism 3 is communicated with the corrosion generating mechanism 4, corrosion of seawater to the concrete member 46 in a natural state is simulated through the corrosion generating mechanism 4, so that the durability research of concrete is facilitated, and the corrosion generating device can be used for realizing corresponding different simulation conditions between different concrete members 46 for one concrete member 46. The floor area is small, the simulation condition is convenient to adjust, and the control is easy. The sealing mechanism 3 can isolate the concrete member 46 from the outside, and reduce interference and errors. A pressure sensor is provided between the jack 9 and the concrete member 46 to detect the pressure. The fixing mechanism 2 and the rust generation mechanism 4 are connected through the connecting pipeline 5, so that the rust generation mechanism 4 can be detached and independently used when not needed, and the use is more convenient and flexible.
The bottom plate 6 is equipped with slide rail 10, be equipped with slider 11 on the slide rail 10, slider 11 and slide rail 10 sliding connection, slider 11 is equipped with connecting rod 12, connecting rod 12 is equipped with backup pad 13, backup pad 13 and connecting rod 12 rotate to be connected, the bottom plate 6 is equipped with spacing frame 14, spacing frame 14 spacing backup pad 13, backup pad 13 is equipped with bracing piece 15, bracing piece 15 is equipped with side lever 16, backup pad 13 is equipped with stopper 17, stopper 17 is equipped with side spout 18, side lever 16 locates in side spout 18, backup pad 13 is equipped with first bellying 19, bracing piece 15 is equipped with first recess 20, first recess 20 card is on first bellying 19, it has fixed pin 21 to lead to between first recess 20 and the first bellying 19. By the sliding connection form of the support plate 13, the setting of the concrete member 46 is facilitated, and the support plate 13 can rotate, so that the setting of the vertical concrete member 46 on the bottom plate 6 is more convenient. Compare traditional direct hoist and mount transport, through improving fixed knot structure, can make things convenient for concrete member 46's setting, and can not need hoist and mount for do not need the loop wheel machine in the installation, the layer height requirement to the laboratory is showing and is reducing. The slidably connected support plate 13 can more facilitate the adjustment of the position of the concrete member 46 on the bottom plate 6, and facilitate the adjustment, while the adjustment of the support plate 13 can be facilitated. The support plate 13 is provided with the support rods 15, so that the connection of the concrete member 46 on the support plate 13 is realized, the adjustment of the concrete member 46 and the position can be more convenient, and the separation of the concrete member 46 and the support plate 13 is avoided.
The sealing mechanism 3 comprises a sealing frame 22 and a sealing cover 23, wherein the sealing frame 22 is arranged on the base 1, the sealing frame 22 is connected with the base 1 through bolts, the sealing frame 22 is provided with a sealing groove 24, the sealing cover 23 is arranged in the sealing groove 24, the sealing cover 23 is provided with a rotating sleeve 25, the rotating sleeve 25 is rotationally connected with the sealing cover 23, the rotating sleeve 25 is arranged on the fixing screw 7, and the rotating sleeve 25 is in threaded connection with the fixing screw 7. The sealing mechanism 3 is used for blocking the connection between the concrete member 46 and the external environment, reducing the influence of the external environment on the concrete member 46 in the test process, and reducing the interference and error. The sealing frame 22 is detachably connected with the base 1, so that the concrete member 46 is convenient to install, the sealing frame 22 can be installed after the concrete member 46 is installed, the sealing cover 23 is connected with the fixing screw 7 through the rotating sleeve 25, the connection is convenient, the connection effect is good, the sealing cover 23 is clamped in the sealing groove 24, namely, the alignment of the rotating sleeve 25 and the fixing screw 7 is completed, the positioning is convenient, the rotating sleeve 25 is rotated, the sealing cover 23 is clamped and fixed on the fixing screw 7, the sealing cover 23 and the sealing frame 22 can be connected at the same time, the sealing effect is good, the upper part of the sealing frame 22 can be connected with the fixing screw 7 at the same time, the supporting effect is achieved, and the upper part of the sealing frame 22 is not easy to bend and deform due to stress.
The fixing screw 7 is provided with a fixing frame 26, the fixing frame 26 is provided with a fixing block 27, the fixing block 27 is provided with a fixing groove 28, the sealing frame 22 is provided with a fixing strip 29, the fixing strip 29 is arranged in the fixing groove 28, the fixing strip 29 is in sliding connection with the fixing groove 28, the fixing block 27 supports the fixing frame 26, the fixing frame 26 is provided with a pressing rod 30, the pressing rod 30 is provided with a guide rod 31, the guide rod 31 is arranged on the fixing frame 26 and is in sliding connection with the fixing frame 26, the fixing frame 26 is provided with a jacking bolt 32, and the jacking bolt 32 jacks the pressing rod 30. The fixed frame 26 supports the concrete member 46 through the compression bar 30, avoids the inclination of the concrete member 46, and facilitates the load application of the jack 9. Meanwhile, the fixing frame 26 plays a supporting role on the middle part of the sealing frame 22, so that the sealing frame 22 is prevented from being deformed under stress, and the connection strength and the connection effect of the sealing frame 22 and the fixing mechanism 2 are improved. The cooperation of the fixing strips and the fixing grooves also makes the installation of the sealing frame 22 more convenient, and improves the connection effect of the sealing frame 22 and the fixing frame 26.
The rust generation mechanism 4 comprises a generation frame 33, a blower 34 and a sealing plate 35, wherein the generation frame 33 is provided with a guide rail 36, a slide bar 37 is arranged on the guide rail 36, a fixing frame 38 is arranged on the slide bar 37, the blower 34 is arranged on the fixing frame 38, the fixing frame 38 is provided with a fixing rod 39, the fixing rod 39 is provided with a connecting groove 40, the blower 34 is provided with a connecting block 41, the connecting groove 40 is provided with a connecting bolt 42, and one end of the connecting bolt 42 penetrates through the connecting groove 40 and is connected with a nut at the other end of the connecting block 41. The rust generation mechanism 4 simulates the condition of strong wind through the blower 34, and simultaneously, the height of the blower 34 is adjusted by utilizing the form of the guide rail 36 and the slide rod 37, so that the height of the blower 34 can be adjusted according to the use requirement, the use is more convenient, and the fixing of the blower 34 is facilitated by the cooperation of the connecting groove 40 and the connecting bolt 42, and the fixing effect is good. Erosion under different conditions can be simulated by water injection in the corrosion generating mechanism 4, the full water is used for simulating the research when the concrete member 46 is submerged by seawater, a small amount of water is injected, the air in the corrosion generating mechanism 4 and the sealing mechanism 3 is circulated by the blower 34 to simulate the condition of heavy wind, meanwhile, the spray heads in the connecting pipelines can be used for simulating the condition of heavy rainwater and air humidity, the simulation of dynamic high-range multi-angle is realized, the simulation effect is better, and the adjustment is more convenient.
The connecting pipe is equipped with transverse baffle 43 and shower head 44, and shower head 44 locates the top of connecting pipe, and transverse baffle 43 rotates with the connecting pipe to be connected, and connecting pipe is equipped with spacing 45, and spacing 45 is spacing connecting pipe's rotation. The transverse baffle 43 is used for separating the connecting pipelines, so that the wind power circulation inside the connecting pipelines can be facilitated, and the product shower head can play a role in humidification. The turned transverse baffle 43 can be turned up when not in use, and is more convenient to use.
The method for installing the full process monitoring device for the rust cracking behavior of the reinforced concrete is characterized by comprising the following steps of:
a. preparation:
The components in the fixing mechanism 2, the sealing mechanism 3 and the rust generation mechanism 4 are inspected, so that the problems of damage, missing, abnormal operation and the like of the components are avoided. The device is prepared before installation, so that subsequent installation work can be smoothly carried out, unnecessary troubles are avoided, and the installation efficiency is effectively improved.
B. Mounting and fixing of the concrete member 46:
The concrete member 46 is fixed to the base 1, and the fixing plate 8 and the jack 9 are installed. The concrete member 46 is secured to facilitate installation of subsequent components.
C. connection of the seal frame 22:
The sealing frame 22 is sleeved on the base 1 from the top, the fixing strips 29 of the sealing frame 22 are aligned with the fixing grooves 28 of the fixing frame 26 when the sealing frame 22 is sleeved on, then the sealing frame 22 is sleeved on the bottom of the base 1, sealing strips are arranged between the sealing frame 22 and the base 1, then the sealing frame 22 is fixed on the base 1 by bolts, a monitoring unit is connected on a concrete member 46, and then the sealing cover 23 is sealed. Sealing effect is improved by utilizing the sealing strip when sealing frame 22 is connected, and after connecting the detecting element, the interference that sealed lid 23 isolated external many pairs of concrete member 46 detected, sealing frame 22 simple to operate, the installation effect is good, has practiced thrift the required time of installation, has improved installation effectiveness.
D. The generating frame 33 is connected with the blower 34 to be fixed:
connecting duct 5 is connected to generating frame 33 and sealing frame 22, after which blower 34 is fixed to fixing frame 38, after which fixing frame 38 is slid into guide rail 36, fixing frame 38 with connecting bolts 42.
E. and (5) testing.
The detailed steps of the step b are as follows: the concrete member 46 is installed by sliding the support plate 13 outwards before turning over, connecting a guide slope on the base 1, lifting the concrete member 46 to the same height as the base 1 by using the guide slope, fixing the support plate 13 so that the support plate 13 cannot slide on the slide rail 10, pushing the concrete member 46 inwards to enable the concrete member 46 to be attached to the support plate 13, clamping the support rod 15 on the support plate 13 and clamping the support plate, introducing a fixing pin 21 between the first boss 19 and the first groove 20 for fixing, releasing the fixing of the support plate 13, pushing the concrete member 46 inwards to the bottom, lifting up one end of the concrete, which is not connected with the support plate 13, enabling the concrete member 46 to stand for prevention, sleeving the fixing frame 26 on the fixing screw 7, adjusting the position of the fixing frame 26 on the fixing screw 7 by using bolts at the upper end and the lower end of the fixing frame 26, screwing the pressing rod 30 on the concrete member 46, and then setting the fixing plate 8 and the jack 9 and fixing. In the setting process of the concrete member 46, the sliding and overturning characteristics of the supporting plate 13 are utilized, so that the setting of the concrete member 46 is simpler and more convenient, and the setting process does not need to be hoisted by means of large equipment, thereby being safer and more efficient. The concrete member 46 is placed at a more accurate position and is placed more effectively.
The test detection in step e comprises the following detailed steps: after the fixing mechanism 2, the sealing mechanism 3 and the corrosion generating mechanism 4 are connected, seawater is injected into the corrosion generating mechanism 4, and then the blower 34 and the spray header 44 are started to detect the working conditions of the sealing mechanism 3 and the corrosion generating mechanism 4, so that the water leakage is avoided. The test detects the connection effect of each component, avoids the leakage condition from affecting the monitoring, and ensures the normal operation of the blower 34 and the spray header 44.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
When the invention is used, the water level height in the sealing frame 22 and the generating frame 33 can be adjusted, and different humidity wind can be blown out by matching with the blower 34 and the spray header 44, so as to simulate different natural exposure environments and study the influence of the corrosion condition of the reinforced concrete member 46 on the durability of the reinforced concrete. The invention can realize the corresponding different simulation conditions among different concrete members 46 for one concrete member 46, has small occupied area, convenient regulation of the simulation conditions, easy control, dynamic regulation of the simulation conditions and convenient regulation. The rust generation mechanism 4 simulates the condition of strong wind through the blower 34, and simultaneously, the height of the blower 34 is adjusted by utilizing the form of the guide rail 36 and the sliding block 11, so that the height of the blower 34 can be adjusted according to the use requirement, the use is more convenient, and the fixing of the blower 34 is facilitated by the cooperation of the connecting groove 40 and the connecting bolt 42, and the fixing effect is good. The corrosion generating mechanism 4 can be filled with water to simulate corrosion under different conditions, and the filled water is used for simulating research when the concrete member 46 is submerged by seawater.
The invention is prepared by a; b. the concrete member 46 is fixed; c. connection of the seal frame 22; d. the generating frame 33 is connected with the blower 34; e. the test detection is carried out, the setting of the concrete member 46 and the installation of the fixing mechanism 2, the sealing mechanism 3 and the rust generation mechanism 4 are realized in five steps, the installation is convenient, the installation effect is good, the time required for installation is saved, large-scale equipment is not needed in the installation process, the installation precision is high, the implementation is convenient, and the installation of a small site can be adapted.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present invention to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present invention.
Claims (4)
1. Full process monitoring devices of reinforced concrete rust crack behavior, its characterized in that: the sealing device comprises a base, a fixing mechanism, a sealing mechanism and a rust occurrence mechanism, wherein the fixing mechanism and the sealing mechanism are all arranged on the base, the fixing mechanism is arranged in the sealing mechanism, a connecting pipeline is arranged between the sealing mechanism and the rust occurrence mechanism, the fixing mechanism comprises a bottom plate, a fixing screw, a fixing plate and a jack, the fixing screw is arranged on the bottom plate, the fixing plate is arranged on the fixing screw, the jack is arranged on the fixing plate, the bottom plate is provided with a sliding rail, the sliding rail is provided with a sliding block, the sliding block is in sliding connection with the sliding rail, the sliding block is provided with a connecting rod, the connecting rod is provided with a supporting plate, the supporting plate is in rotary connection with the connecting rod, the bottom plate is provided with a limiting frame, the limiting frame is limited by the supporting plate, the supporting plate is provided with a supporting rod, the supporting plate is provided with a limiting block, the limiting rod is provided with a side sliding groove, the side rod is arranged in the side sliding groove, the supporting plate is provided with a first groove, the first groove is clamped on the fixing screw, the first groove is provided with a first groove, the first groove is in sliding groove is connected with the sealing cover, the sealing cover is arranged between the sealing cover and the sealing cover, the sealing cover is arranged in the sealing cover, the sealing cover is connected with the sealing cover, the sealing cover is arranged between the sealing cover and the sealing cover, and the sealing cover is arranged between the sealing cover and the sealing cover, and the sealing cover. The fixed block is equipped with the fixed slot, the sealing frame is equipped with the fixed strip, the fixed strip is located in the fixed slot, the fixed strip with fixed slot sliding connection, the fixed block supports the fixed frame, the fixed frame is equipped with the depression bar, the depression bar is equipped with the guide bar, the guide bar is located fixed frame is last and with fixed frame sliding connection, the fixed frame is equipped with the jack bolt, the jack bolt is tight the depression bar, corrosion generation mechanism is including taking place frame, air-blower and shrouding, the taking place the frame and being equipped with the guide rail, be equipped with the slide bar on the guide rail, be equipped with the mount on the slide bar, the air-blower is located on the mount, the mount is equipped with the dead lever, the dead lever is equipped with the spread groove, the air-blower is equipped with the connecting block, the connecting groove is equipped with connecting bolt, the one end of connecting bolt pass the spread groove with the nut of the connecting block other end is connected, the connecting tube is equipped with diaphragm and head, the head is located the top of connecting tube, the diaphragm with connecting tube rotates to be connected with connecting tube, the connecting tube is equipped with spacing, the spacing is rotated to the spacing.
2. The method for installing a full history monitoring device for rust cracking behaviour of reinforced concrete according to claim 1, characterized by comprising the steps of:
a. preparation:
checking each part in the fixing mechanism, the sealing mechanism and the rust generation mechanism to ensure that the parts are not damaged, lost and abnormally operated;
b. And (3) mounting and fixing the concrete member:
Fixing a concrete member on a base, and installing a fixing plate and a jack;
c. and (3) connection of a sealing frame:
The sealing frame is sleeved into the base from the top, fixing strips of the sealing frame are aligned with fixing grooves of the fixing frame when the sealing frame is sleeved, then the sealing frame is sleeved to the bottom of the base, sealing strips are arranged between the sealing frame and the base, the sealing frame is fixed on the base by bolts, a monitoring unit is connected to a concrete member, and then a sealing cover is sealed;
d. generating frame connection and fixing of a blower:
Connecting the connecting pipeline to the generating frame and the sealing frame, fixing the blower to the fixing frame, sliding the fixing frame into the guide rail, and fixing the fixing frame by using connecting bolts;
e. and (5) testing.
3. The method for installing a full history monitoring device for rust cracking behaviour of reinforced concrete according to claim 2, wherein: the detailed steps of the step b are as follows: the concrete member is installed before the outward slip of backup pad, then upset, afterwards connect the guide slope on the base, be convenient for with the concrete member to the same high with the base, afterwards utilize the guide slope with the concrete member lift to the same high with the base, the backup pad makes the backup pad can not slide on the slide rail, afterwards inwards promote the concrete member for the concrete member is laminated with the backup pad, afterwards with bracing piece card in the backup pad and chucking, let in the fixed pin between first bellying and first recess fixed, afterwards release the fixed of backup pad, inwards promote the concrete member to the end, afterwards upwards lift the one end that the concrete is not connected with the backup pad, make the concrete member erect and prevent, afterwards embolia fixed frame on fixed screw, utilize the bolt of fixed frame upper and lower both ends to adjust the position of fixed frame on fixed screw, afterwards screw tightening jack bolt makes the depression bar jack tightly on the concrete member, afterwards set up fixed plate and jack and fixed.
4. The method for installing a full history monitoring device for rust cracking behaviour of reinforced concrete according to claim 2, wherein: the test detection in step e comprises the following detailed steps: after the fixing mechanism, the sealing mechanism and the corrosion generating mechanism are connected, seawater is injected into the corrosion generating mechanism, and then the blower and the spray header are started to detect the working conditions of the sealing mechanism and the corrosion generating mechanism, so that the water leakage is avoided.
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| CN114878453B (en) * | 2022-07-11 | 2022-10-18 | 哈尔滨工业大学 | Experimental device and experimental method for regional corrosion in reinforced concrete frame |
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