CN115541856A - Test device for simulating concrete disturbance of joint of spliced wide bridge - Google Patents
Test device for simulating concrete disturbance of joint of spliced wide bridge Download PDFInfo
- Publication number
- CN115541856A CN115541856A CN202211280827.3A CN202211280827A CN115541856A CN 115541856 A CN115541856 A CN 115541856A CN 202211280827 A CN202211280827 A CN 202211280827A CN 115541856 A CN115541856 A CN 115541856A
- Authority
- CN
- China
- Prior art keywords
- passive
- initiative
- prefabricated section
- disturbance
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; ceramics; glass; bricks
- G01N33/383—Concrete, cement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
Abstract
The invention discloses a test device for simulating disturbance of concrete at a joint of a wide spliced bridge, which comprises a concrete precast block for simulating a prefabricated bridge deck slab, a template for providing a pouring space for a cast-in-place spliced seam and an actuator for simulating deformation disturbance, wherein the cross section of the template is provided with a groove with an upward opening, the concrete precast block comprises an active precast block and a passive precast block which are positioned in the groove of the template, the spliced seam is positioned between the active precast block and the passive precast block, the actuator acts on the active precast block, the passive precast block is fixedly connected to a base, and the active precast block is fixedly arranged in the template. The test device for simulating the disturbance of the concrete at the joint of the spliced wide bridge, disclosed by the invention, has the advantages of modular design, convenience in disassembly and assembly, reusability, capability of inspecting various test parameters and the like, and is expected to provide a solution for the disturbance research of the spliced wide joint concrete in the hardening process.
Description
Technical Field
The invention relates to the field of bridge widening joint technology test equipment, in particular to a test device for simulating concrete disturbance of a bridge widening joint.
Background
In China, the contradiction between the continuous increase of traffic volume and the insufficient traffic capacity of the existing highway bridge is increasingly prominent, the improvement of the traffic capacity of the existing highway bridge is an important and urgent task at present, and the widening and the transformation of the existing highway bridge can effectively improve the traffic capacity of the highway bridge. The following 3 methods are mainly used for bridge widening: (1) the upper structure and the lower structure of the new bridge and the old bridge are not spliced; (2) the upper structure and the lower structure of the new bridge and the old bridge are spliced; (3) the upper structures of the new bridge and the old bridge are spliced, and the lower structures of the new bridge and the old bridge are not spliced. Except for the first widening method, the other two widening methods all need to splice the new bridge and the old bridge, namely a splicing seam needs to be arranged between the newly-built bridge and the bridge deck of the existing bridge. When the bridge deck is widened by pouring concrete between the existing bridge deck slab and the new bridge deck slab, the traffic is usually kept uninterrupted, so that the widened joint can be vibrated due to the traffic in the hardening process, the strength of the joint concrete, the bonding strength of the concrete and steel bars, the bonding performance of the prefabricated bridge deck slab and the joint and the like are influenced, the construction quality and the use performance of the widened joint are further influenced, and the defects of cracking, breakage and the like frequently occur in the operation stage after the concrete of the widened bridge joint is hardened. Because the forming time of the splicing width joint concrete strength is longer, in addition, the concrete is extremely sensitive to deformation disturbance during hardening, but at present, a device which can accurately simulate the concrete disturbance at the position of the splicing width bridge joint to measure the concrete hardening forming influence degree is not provided, so that the influence of the external disturbance on the splicing width joint forming quality in the splicing width joint concrete strength forming period is difficult to quantify.
Therefore, in order to solve the above problems, it is necessary to develop a test device for simulating disturbance of the joint concrete of the split-width bridge, so as to test and research the influence of bridge deck traffic vibration on the joint concrete of the split-width bridge, wherein the test device can accurately simulate the actual stressed deformation state of the joint concrete of the split-width bridge under the traffic disturbance; the simulation of different disturbance amplitudes and frequencies can be realized, various test parameters can be inspected, the design is modular, the disassembly and the assembly are convenient, and the repeated utilization can be realized; the test device is expected to provide a solution for the disturbance research of the spliced wide joint concrete in the hardening process.
Disclosure of Invention
In view of this, the invention aims to overcome the defects in the prior art, and provides a test device for simulating the disturbance of the joint concrete of a spliced wide bridge, which can accurately simulate the actual stressed deformation state of the spliced wide joint concrete under traffic disturbance; the simulation of different disturbance amplitudes and frequencies can be realized, various test parameters can be inspected, the design is modular, the assembly and disassembly are convenient, and the device can be repeatedly used; the test device is expected to provide a solution for the disturbance research of the spliced wide joint concrete in the hardening process.
The test device for simulating disturbance of concrete at the joint of the wide spliced bridge comprises a concrete precast block for simulating a prefabricated bridge deck, a template for providing a pouring space for a cast-in-place splicing seam and an actuator for simulating deformation disturbance, wherein the cross section of the template is provided with a groove with an upward opening, the concrete precast block comprises an active precast block and a passive precast block which are positioned in the groove of the template, the splicing seam is positioned between the active precast block and the passive precast block, the actuator acts on the active precast block, the passive precast block is fixedly connected to a base, the active precast block is fixedly arranged in the template, the active precast block and the passive precast block are used for simulating the bridge deck, the wide splicing seam is poured between the brake precast block and the passive precast block, the concrete precast block is in a cuboid shape, and a clamping surface which is very convenient to hold when the concrete precast block is clamped and fixed.
Further, the template includes die block and side form, the side form for its diaphragm of L shaped plate pass through the connecting piece with fixed connection can be dismantled to the die block, form the recess between the riser of side form and the die block, set up on the double-phase face to the riser many pairs be used for the assembly to the pull hole of pulling the connecting piece, the last border of riser is less than the upper surface of initiative prefabricated section and passive prefabricated section, in the actual simulation test in-process, the template adopts the steel sheet to make, and wherein most connection adopts bolted connection, convenient to detach and used repeatedly, practices thrift the cost, and double-phase is to forming the opposite-pulling through pulling the connecting piece between the riser, and the stability of wide seam pouring and solidification in-process template is pieced together in the reinforcing, guarantees that the template does not produce transverse bending deformation at the disturbance in-process.
Further, still including being used for pressing from both sides tightly the initiative anchor clamps subassembly of initiative prefabricated section, the initiative anchor clamps subassembly including laminate in the last initiative splint of initiative prefabricated section upper surface with laminate in lower initiative splint and the connecting piece of die block below, the connecting piece is used for the fixed connection between last initiative splint, lower initiative splint and the template, and the connecting piece generally adopts bolt and nut in the test process, sets up the assembly of corresponding through-hole bolt of being convenient for on last initiative splint, lower initiative splint and the template, realizes test device modular assembly, and general degree is high, and interchangeability is strong.
Furthermore, all be provided with the stiffening rib on last initiative splint and the lower initiative splint, the stiffening rib all faces towards keeping away from the direction of initiative prefabricated section and following the longitudinal extension of initiative prefabricated section (this is vertical current direction that simulates the decking), the intensity and the rigidity of last initiative splint and lower initiative splint can be improved in the setting of stiffening rib, and the initiative anchor clamps subassembly can transmit the disturbance to the initiative prefabricated section better when the disturbance is applyed to the actuator.
Further, still press from both sides tightly including being used for the clamp passive anchor clamps subassembly of passive prefabricated section, passive anchor clamps subassembly including set up in passive splint on passive prefabricated section upper surface, set up in lower passive splint of die block below, set up in go up passive splint with last baffle between the passive prefabricated section, set up in down passive splint with lower baffle and connecting piece between the die block, go up the baffle with still be provided with the roller bearing between the passive prefabricated section, be provided with the spacing strengthening rib that is used for spacing roller bearing on the last baffle, down the baffle with be provided with the roller bearing between the die block, be provided with the spacing strengthening rib that is used for spacing roller bearing on the baffle down, connecting piece here still adopts the bolt, sets up corresponding through-hole bolt assembly of being convenient for on last passive splint and the lower passive splint, realizes test device modularization assembly, and general degree is high, and interchangeability is strong.
Furthermore, the rollers are arranged along the longitudinal direction of the passive precast block (the longitudinal direction is the passing direction of the simulation bridge deck), two groups of rollers are arranged on the same upper partition plate/lower partition plate, the rolling direction of the rollers is arranged along the transverse direction of the passive precast block (the transverse direction is perpendicular to the passing direction of the simulation bridge deck), the arrangement of the rollers can provide space for the displacement of the template, the friction between the template and the passive clamping assembly is converted into rolling friction, and the error influence on disturbance deformation is structurally reduced.
Further, still be provided with the spacing adjustment dog that is used for injecing the die block maximum displacement on the splint passively down, spacing adjustment dog pass through the bolt with the splint passively down is connected, be provided with the bar hole of being convenient for adjust spacing adjustment dog position on the spacing adjustment dog, realize the spacing adjustment of spacing adjustment dog through the contact position of adjusting bar hole and bolt.
Further, the base is fixed on the ground through the anchor rod, the base comprises a top plate fixedly connected with the lower passive clamping plate, a bottom plate fixedly connected with the anchor rod and a web plate fixedly connected between the top plate and the bottom plate, a plurality of reinforcing rib plates are arranged on the web plate, the simulation of a pier is achieved through the cooperation of the anchor rod and the base, meanwhile, the support of the passive prefabricated block is guaranteed, and the effect of truly simulating an actual bridge floor can be achieved.
Further, set up many vertical extension's movement joint on the riser of side form, many the movement joint is arranged along the extending direction array of side form, and the setting of movement joint is used for weakening the rigidity of side form, allows the deformation of disturbance in-process side form.
Further, the initiative prefabricated section is a set of, passive prefabricated section is two sets of, the initiative prefabricated section is located two sets of central point between the passive prefabricated section puts, and such mode of setting can realize the simulation of two sets of wide seams of piecing together simultaneously, improves experimental accuracy, the actuator pass through the connecting plate with go up initiative splint fixed connection with this realization and apply the disturbance to the initiative prefabricated section, offer the mesopore that is used for the fixed connection actuator on the connecting plate, adopt bolted connection between connecting plate and the initiative splint.
The passive clamp is fixed on the base through a bolt, and the base is anchored on the ground through an anchor rod; the template and the concrete precast block therein are respectively clamped by an active clamp assembly and a passive clamp assembly, and the active clamp assembly is connected with the actuator through a connecting plate; the deformation joint on the side mold can reduce the rigidity of the side mold and avoid the stress concentration phenomenon in the disturbance process, so that the deformation of the template is realized, and the deformation is consistent with the actual deformation condition of a cast-in-situ splicing joint template in the actual engineering; the concrete precast blocks in the template are used for simulating precast bridge deck slabs, and fresh concrete is poured between the active precast blocks and the passive precast blocks so as to simulate cast-in-situ splicing seams on a real bridge; the actuator applies load (displacement control or force control) to the active clamp assembly, so that deformation disturbance of the two splicing joint concretes can be simulated simultaneously. In the disturbance process, the template is translated through a roller in the passive clamp assembly, and the translation displacement value of the template can be limited by the limit adjusting stop block.
In actual engineering, when a new bridge deck slab or an old bridge deck slab passes through traffic load, relative displacement difference is generated on two sides of a splicing seam, and therefore shearing deformation is caused to the concrete of the splicing seam. The passive prefabricated section of template both sides can not produce vertical displacement and rotation, and the initiative prefabricated section actuates under the load of actuator, can realize vertical displacement's change to this displacement value accessible actuator adjusts, thereby has realized the shear deformation of cast-in-place concrete section in the template. Therefore, the device can well simulate the deformation disturbance condition and the stress condition of the splicing seam in the actual engineering.
The invention has the beneficial effects that: the test device for simulating the disturbance of the concrete at the joint of the spliced wide bridge, disclosed by the invention, can accurately simulate the actual stress deformation state and boundary conditions of the spliced wide joint concrete under traffic disturbance by arranging the shear deformation area of the concrete disturbance, can realize the simulation of different disturbance amplitudes and frequencies, and more truly reflect the influence of live load disturbance on the performance of a joint material.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic illustration of the explosive structure of the present invention;
FIG. 2 is a schematic diagram of the template structure of the present invention;
FIG. 3 is a schematic view of an assembly structure of the present invention.
Detailed Description
Fig. 1 is a schematic diagram of an explosion structure of the present invention, fig. 2 is a schematic diagram of a formwork structure of the present invention, fig. 3 is a schematic diagram of an assembly structure of the present invention, and as shown in the drawings, the test apparatus for simulating disturbance of concrete at a seam of a wide spliced bridge in the present embodiment includes a precast concrete block for simulating a prefabricated bridge deck, a formwork for providing a casting space for a cast-in-place splice joint, and an actuator 3 for simulating disturbance of deformation, the cross section of the formwork has a groove with an upward opening, the precast concrete block includes an active precast block 1a and a passive precast block 1b located in the groove of the formwork, the splice joint is located between the active precast block 1a and the passive precast block 1b, the actuator 3 acts on the active precast block 1a, the passive precast block 1b is fixedly connected to a base 7, the active precast block 1a is fixedly disposed in the formwork, the active precast block 1a and the passive precast block 1b are used for simulating a bridge deck, a wide spliced seam is cast between the brake block and the passive precast block 1b, and the concrete block is a rectangular solid, and a clamping surface is very convenient to clamp when the precast block.
In this affair example, the template includes die block 2a and side form 2b, side form 2b pass through the connecting piece for its diaphragm of L shaped plate with fixed connection can be dismantled to die block 2a, form the recess between the riser of side form 2b and die block 2a, set up on the double-phase face to the riser many to being used for the assembly to draw the hole to of connecting piece, the last border of riser is less than the upper surface of initiative prefabricated section 1a and passive prefabricated section 1b, at the actual simulation test in-process, the template adopts the steel sheet to make, and wherein most connection adopts bolted connection, and convenient to detach and used repeatedly practices thrift the cost, and double-phase forms the opposite-pulling through the opposite-pulling connecting piece between the riser, and the stability of reinforcing wide seam pouring and solidification in-process template is pieced together, guarantees that the template does not produce transverse bending deformation in the disturbance in-process.
In this affair example, still including being used for pressing from both sides tightly initiative anchor clamps subassembly of initiative prefabricated section 1a, initiative anchor clamps subassembly including laminate in the last initiative splint 4a of initiative prefabricated section 1a upper surface with laminate in lower initiative splint 4b and the connecting piece of die block 2a below, the connecting piece is used for last initiative splint 4a, lower initiative splint 4b and the fixed connection between the template, and the connecting piece generally adopts bolt and nut in the test process, sets up the assembly of the bolt of being convenient for of corresponding through-hole on last initiative splint 4a, lower initiative splint 4b and the template, realizes test device modular assembly, and general degree is high, and interchangeability is strong.
In this matter example, all be provided with stiffening rib 4c on last initiative splint 4a and the lower initiative splint 4b, stiffening rib 4c all faces away from the direction of initiative prefabricated section 1a and follows the longitudinal extension of initiative prefabricated section 1a (this is vertical the current direction of simulation decking), and the intensity and the rigidity of last initiative splint 4a and lower initiative splint 4b can be improved in the setting of stiffening rib 4c, and the initiative anchor clamps subassembly can transmit the disturbance to initiative prefabricated section 1a better when actuator 3 applys the disturbance.
In this affair example, still including being used for pressing from both sides tightly passive anchor clamps subassembly of passive prefabricated section 1b, passive anchor clamps subassembly including set up in passive splint 5a on passive prefabricated section 1b upper surface, set up in lower passive splint 5b of die block 2a below, set up in go up passive splint 5a with last baffle 5c between the passive prefabricated section 1b, set up in lower passive splint 5b with lower baffle 5d and the connecting piece between the die block 2a, go up baffle 5c with still be provided with roller bearing 5e between the passive prefabricated section 1b, upward be provided with the spacing strengthening rib 5f that is used for spacing roller bearing 5e on the baffle 5c, baffle 5d down with be provided with roller bearing 5e between the die block 2a, be provided with the spacing strengthening rib 5f that is used for spacing roller bearing 5e on the baffle 5d down, the connecting piece here still adopts the bolt, sets up corresponding through-hole on passive splint 5a and the lower splint 5b and be convenient for bolt assembly, realizes test device modularization assembly, and general degree is high, and interchangeability is strong.
In this case, the rollers 5e are arranged along the longitudinal direction of the passive precast block 1b (the longitudinal direction is the passing direction of the simulation bridge deck), and two groups of rollers 5e are arranged on the same upper partition plate 5 c/lower partition plate 5d, the rolling direction of the rollers 5e is along the transverse direction of the passive precast block 1b (the transverse direction is perpendicular to the passing direction of the simulation bridge deck), the arrangement of the rollers 5e can provide a space for the displacement of the template, and the friction between the template and the passive clamping component is converted into rolling friction, so that the error influence on disturbance deformation is structurally reduced.
In this affair example, still be provided with the spacing regulation dog 6 that is used for injecing die block 2a maximum displacement on the splint 5b passively down, spacing regulation dog 6 pass through the bolt with splint 5b passively down is connected, be provided with the bar hole of being convenient for adjust spacing regulation dog 6 position on the spacing regulation dog 6, realize the spacing regulation of spacing regulation dog 6 through the contact position who adjusts bar hole and bolt.
In this affair example, base 7 is fixed in ground through stock 8, base 7 include with lower 5b fixed connection's of passive splint roof 7a, with 8 fixed connection's of stock bottom plate 7b and fixed connection in web 7c between roof 7a and the bottom plate 7b, be provided with multichannel stiffening rib 4c board on the web 7c, the simulation of pier has been realized promptly in stock 8 and 7's cooperation, has also guaranteed the support to passive prefabricated section 1b simultaneously, more can reach the effect of the actual bridge floor of true simulation.
In this instance, set up many vertical extension's movement joint 2c on the riser of side form 2b, many movement joint 2c arranges along side form 2 b's extending direction array, and movement joint 2 c's setting is used for weakening side form 2 b's rigidity, allows the deformation of disturbance in-process side form 2 b.
In this affair example, initiative prefabricated section 1a is a set of, passive prefabricated section 1b is two sets of, initiative prefabricated section 1a is located two sets of central point between the passive prefabricated section 1b puts, and such mode of setting up can realize the simulation of two groups wide seam simultaneously, improves experimental accuracy, actuator 3 through connecting plate 9 with go up initiative splint 4a fixed connection with this realization and apply the disturbance to initiative prefabricated section 1a, offer the mesopore that is used for fixed connection actuator 3 on the connecting plate 9, adopt bolted connection between connecting plate 9 and the initiative splint.
The passive clamp is fixed on a base 7 through a bolt, and the base 7 is anchored on the ground through an anchor rod 8; the template and the concrete precast block therein are respectively clamped by an active clamp component and a passive clamp component, and the active clamp component is connected with the actuator 3 through a connecting plate 9; the deformation joint 2c on the side mold 2b can reduce the rigidity of the side mold 2b and avoid the stress concentration phenomenon in the disturbance process, thereby realizing the deformation of the template, which is consistent with the actual deformation condition of the cast-in-situ splicing joint template in the actual engineering; the concrete precast blocks in the template are used for simulating precast bridge decks, and fresh concrete is poured between the active precast blocks 1a and the passive precast blocks 1b so as to simulate cast-in-situ splicing seams on the real bridge; load (displacement control or force control) is applied to the driving clamp assembly through the actuator 3, and deformation disturbance of the two splicing seam concretes can be simulated simultaneously. In the disturbance process, the template translates through a roller 5e in the passive clamp assembly, and the translation displacement value of the template can be limited by a limit adjusting stop 6.
In actual engineering, when a new bridge deck slab or an old bridge deck slab passes through traffic load, relative displacement difference is generated on two sides of a splicing seam, so that shearing deformation is generated on the concrete of the splicing seam. The passive prefabricated section 1b of template both sides can not produce vertical displacement and rotation, and initiative prefabricated section 1a actuates under actuator 3's load, can realize vertical displacement's change to this displacement value accessible actuator 3 adjusts, thereby has realized in the template the shear deformation of cast-in-place concrete section. Therefore, the device can well simulate the deformation disturbance condition and the stress condition of the splicing seam in the actual engineering.
The test device for simulating the disturbance of the concrete at the joint of the spliced wide bridge, disclosed by the invention, can accurately simulate the actual stress deformation state and boundary conditions of the spliced wide joint concrete under traffic disturbance by arranging the shear deformation area of the concrete disturbance, can realize the simulation of different disturbance amplitudes and frequencies, and more truly reflect the influence of live load disturbance on the performance of a joint material.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a test device of wide bridge seam concrete disturbance is pieced together in simulation which characterized in that: including the concrete prefabricated section that is used for simulating prefabricated decking, for cast-in-place concatenation seam provides the template in casting space and the actuator of simulation deformation disturbance, the cross section of template has the ascending recess of opening, the concrete prefabricated section is including being located initiative prefabricated section and passive prefabricated section in the template recess, the concatenation seam is located between initiative prefabricated section and the passive prefabricated section, the actuator acts on the initiative prefabricated section, passive prefabricated section fixed connection is on the base, the initiative prefabricated section is fixed set up in the template.
2. The test device for simulating the concrete disturbance of the joint of the split-width bridge according to claim 1, characterized in that: the template includes die block and side form, the side form for its diaphragm of L shaped plate pass through the connecting piece with fixed connection can be dismantled to the die block, form the recess between the riser of side form and the die block, set up on the face of double-phase relative riser and many to being used for the assembly to drawing the counter-acting hole of connecting piece, the last border of riser is less than the upper surface of initiative prefabricated section and passive prefabricated section.
3. The test device for simulating the concrete disturbance of the joint of the split-width bridge according to claim 2, characterized in that: still including being used for pressing from both sides tightly the initiative anchor clamps subassembly of initiative prefabricated section, the initiative anchor clamps subassembly including laminate in the last initiative splint of initiative prefabricated section upper surface with laminate in lower initiative splint and the connecting piece of die block below, the connecting piece is used for the fixed connection between last initiative splint, lower initiative splint and the template.
4. The test device for simulating the concrete disturbance of the joint of the split-width bridge according to claim 3, characterized in that: and reinforcing ribs are arranged on the upper driving clamping plate and the lower driving clamping plate and face the direction far away from the driving precast block and extend along the longitudinal direction of the driving precast block.
5. The test device for simulating the disturbance of the concrete at the joint of the spliced wide bridge according to claim 2, characterized in that: still including being used for pressing from both sides tightly passive anchor clamps subassembly of passive prefabricated section, passive anchor clamps subassembly including set up in passive splint on the passive prefabricated section upper surface, set up in lower passive splint of die block below, set up in go up passive splint with last baffle between the passive prefabricated section, set up in down passive splint with lower baffle and connecting piece between the die block, go up the baffle with still be provided with the roller bearing between the passive prefabricated section, upward be provided with the spacing strengthening rib that is used for spacing roller bearing on the baffle, down the baffle with be provided with the roller bearing between the die block, be provided with the spacing strengthening rib that is used for spacing roller bearing down on the baffle.
6. The test device for simulating the concrete disturbance of the joint of the split-width bridge according to claim 5, characterized in that: the rollers are arranged along the longitudinal direction of the passive precast block, two groups of rollers are arranged on the same upper partition plate/lower partition plate, and the rolling direction of the rollers is along the transverse direction of the passive precast block.
7. The test device for simulating the disturbance of the concrete at the joint of the spliced wide bridge according to claim 6, wherein: still be provided with on the lower passive splint and be used for injecing the spacing regulation dog of die block maximum displacement, spacing regulation dog pass through the bolt with the lower passive splint is connected, be provided with the bar hole of being convenient for adjust spacing regulation dog position on the spacing regulation dog.
8. The test device for simulating the disturbance of the concrete at the joint of the spliced wide bridge according to claim 5, wherein: the base is fixed on the ground through an anchor rod, the base comprises a top plate fixedly connected with the lower passive clamping plate, a bottom plate fixedly connected with the anchor rod and a web plate fixedly connected between the top plate and the bottom plate, and a plurality of reinforcing rib plates are arranged on the web plate.
9. The test device for simulating the disturbance of the concrete at the joint of the spliced wide bridge according to claim 2, characterized in that: a plurality of vertical extending deformation joints are formed in vertical plates of the side dies and are arranged in an array mode along the extending direction of the side dies.
10. The test device for simulating the concrete disturbance of the joint of the split-width bridge according to claim 3, characterized in that: the initiative prefabricated section is a set of, passive prefabricated section is two sets of, the initiative prefabricated section is located two sets of central point between the passive prefabricated section puts, the actuator pass through the connecting plate with go up initiative splint fixed connection with this realization and exert the disturbance to the initiative prefabricated section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211280827.3A CN115541856B (en) | 2022-10-19 | 2022-10-19 | Test device for simulating concrete disturbance of spliced wide bridge joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211280827.3A CN115541856B (en) | 2022-10-19 | 2022-10-19 | Test device for simulating concrete disturbance of spliced wide bridge joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115541856A true CN115541856A (en) | 2022-12-30 |
| CN115541856B CN115541856B (en) | 2023-09-22 |
Family
ID=84735538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211280827.3A Active CN115541856B (en) | 2022-10-19 | 2022-10-19 | Test device for simulating concrete disturbance of spliced wide bridge joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115541856B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116561856A (en) * | 2023-05-06 | 2023-08-08 | 中交第二公路勘察设计研究院有限公司 | Staggered spliced wide bridge segment model test design method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793650A (en) * | 2010-03-18 | 2010-08-04 | 长安大学 | Accumulated deformation test instrument for functional layer asphalt and concrete between concrete supercrusts |
| US9765521B1 (en) * | 2016-10-18 | 2017-09-19 | King Saud University | Precast reinforced concrete construction elements with pre-stressing connectors |
| CN114414784A (en) * | 2022-03-30 | 2022-04-29 | 中交第一公路勘察设计研究院有限公司 | Bridge splicing joint vehicle-mounted deformation difference simulation test device and simulation method |
| CN114624335A (en) * | 2022-03-24 | 2022-06-14 | 中交第一公路勘察设计研究院有限公司 | Bridge splicing joint vehicle-mounted deformation difference simulation test device and method based on multiple vibration tables |
| CN217484151U (en) * | 2022-03-16 | 2022-09-23 | 扬州大学 | Test device for simulating influence of disturbance load on reinforced concrete |
-
2022
- 2022-10-19 CN CN202211280827.3A patent/CN115541856B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793650A (en) * | 2010-03-18 | 2010-08-04 | 长安大学 | Accumulated deformation test instrument for functional layer asphalt and concrete between concrete supercrusts |
| US9765521B1 (en) * | 2016-10-18 | 2017-09-19 | King Saud University | Precast reinforced concrete construction elements with pre-stressing connectors |
| CN217484151U (en) * | 2022-03-16 | 2022-09-23 | 扬州大学 | Test device for simulating influence of disturbance load on reinforced concrete |
| CN114624335A (en) * | 2022-03-24 | 2022-06-14 | 中交第一公路勘察设计研究院有限公司 | Bridge splicing joint vehicle-mounted deformation difference simulation test device and method based on multiple vibration tables |
| CN114414784A (en) * | 2022-03-30 | 2022-04-29 | 中交第一公路勘察设计研究院有限公司 | Bridge splicing joint vehicle-mounted deformation difference simulation test device and simulation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116561856A (en) * | 2023-05-06 | 2023-08-08 | 中交第二公路勘察设计研究院有限公司 | Staggered spliced wide bridge segment model test design method |
| CN116561856B (en) * | 2023-05-06 | 2023-10-20 | 中交第二公路勘察设计研究院有限公司 | Staggered spliced wide bridge segment model test design method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115541856B (en) | 2023-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105835226A (en) | Precast beam pedestal obtained through pre-tensioning method | |
| CN110700105B (en) | Synchronous construction method for high pier column and tie beam and template used in same | |
| CN115541856A (en) | Test device for simulating concrete disturbance of joint of spliced wide bridge | |
| CN110607867A (en) | Non-dismantling mold laminated slab | |
| CN111024480B (en) | Model for simulating concrete stress state and test method | |
| CN211396201U (en) | Connection structure of embedded steel beam and prefabricated composite floor slab | |
| CN110524675B (en) | Pre-tensioning prefabricated I-beam and construction method thereof | |
| CN112627034A (en) | Synchronous construction method for turning over mold of high pier of bridge | |
| CN217484151U (en) | Test device for simulating influence of disturbance load on reinforced concrete | |
| CN111305439A (en) | Laminated slab with disassembly-free die steel frame | |
| CN211947965U (en) | Cast-in-situ continuous box girder internal mold | |
| CN211762299U (en) | Template and system for prefabricating T beam | |
| CN112211098B (en) | Bolt connection device between prefabricated bridge floor boards of assembled bridge | |
| CN212052342U (en) | Construction auxiliary tool is transversely widened to prestressed concrete T roof beam of scalable regulation | |
| CN211849006U (en) | Hollow slab beam transverse splicing auxiliary construction device capable of being rapidly spliced in modular mode | |
| CN110318557B (en) | Prestressed concrete hollow slab reinforcing device and method | |
| CN113059685A (en) | Precast beam construction system and construction method | |
| CN111877640A (en) | Assembled steel-concrete composite beam connected by perforated steel plates and manufacturing method | |
| CN111622264A (en) | Underground pipe gallery automatic control creeping formwork system and operation method thereof | |
| JP2000104220A (en) | Erection of combined truss bridge | |
| CN111455817A (en) | Cable-stayed bridge integral steel anchor beam and construction method thereof | |
| CN210032603U (en) | Prefabricated steel frame mould system of combined floor sinking concrete beam | |
| CN114438889B (en) | Construction method for pouring steel-concrete composite Liang Liangjian cast-in-situ bridge deck | |
| CN217175691U (en) | Floor expansion joint department template device for shear force wall | |
| CN217840571U (en) | Be applied to outsourcing concrete steel beam in assembled steel structure system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |