CN115290864B - Test device and detection method for lateral pouring inside plane X-shaped inclined column grid - Google Patents

Test device and detection method for lateral pouring inside plane X-shaped inclined column grid Download PDF

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CN115290864B
CN115290864B CN202210965502.2A CN202210965502A CN115290864B CN 115290864 B CN115290864 B CN 115290864B CN 202210965502 A CN202210965502 A CN 202210965502A CN 115290864 B CN115290864 B CN 115290864B
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column
grid
oblique
shaped
diagonal
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CN115290864A (en
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王震
程俊婷
赵阳
应小宇
杨学林
王骏琦
沈楠清
瞿浩川
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Hangzhou City University
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Hangzhou City University
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    • 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; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
    • G01N33/383—Concrete or cement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0654—Imaging
    • G01N29/0672—Imaging by acoustic tomography
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0654—Imaging
    • G01N29/069—Defect imaging, localisation and sizing using, e.g. time of flight diffraction [TOFD], synthetic aperture focusing technique [SAFT], Amplituden-Laufzeit-Ortskurven [ALOK] technique
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0232—Glass, ceramics, concrete or stone
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/024—Mixtures

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
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  • Analytical Chemistry (AREA)
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  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
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  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

The invention relates to a device and a method for testing lateral irrigation in a plane X-shaped diagonal column grid, comprising the steps of connecting an upper half section diagonal node with a lower half section grid diagonal column to form a plane X-shaped diagonal column grid structure; selecting the detection position of the cross section of the inclined column, obtaining a detection result, judging irrigation quality, and supplementing detection. The invention has the advantages of reasonable structure system structure, simple and effective process method, full play of the advantages of consistent model, identical conditions and reasonable and effective process of the test device and the detection method for the lateral pouring model of the concrete in the plane X-shaped diagonal grid, realization of the simulation of the lateral pouring construction process of the internal concrete containing the X-shaped diagonal grid nodes of the complex inner partition plate and the diagonal grid members and the simulation of the detection process of the compactness of the concrete while improving the lateral pouring process and guaranteeing the bearing performance, and realization of the purposes of saving the cost and accelerating the construction operation while guaranteeing the stress performance of the structure.

Description

Device and method for testing lateral irrigation inside plane X-shaped inclined column grid
Technical Field
The invention belongs to the technical field of structural engineering, and particularly relates to a device and a method for testing lateral irrigation inside a plane X-shaped inclined column grid.
Background
The oblique grid system is an ultra-high-rise steel structure system formed by intersecting and intersecting two-way or three-way oblique column members and just connecting the oblique column members, has the advantages of light dead weight, high lateral rigidity resistance, high height and the like, and is widely applied to ultra-high-rise large-scale public buildings with building functions of business, office and the like.
Because the oblique column members are mainly axial force members, the lateral rigidity is extremely high, and the oblique grid system mainly bears the horizontal force actions such as earthquake, wind load and the like through vertical grids formed by intersecting the oblique column members. In view of space utilization and material economy, the diagonal column member generally adopts a box-shaped section, concrete can be poured in the diagonal column member for reinforcement when the side length of the section has building restriction requirements, the section of the diagonal column member is reduced as much as possible while the rigidity and the bearing performance of the diagonal column member are ensured, and at the moment, the steel pipe and the internal concrete participate in bearing at the same time.
The compactness quality of the concrete in the steel pipe is an important factor for ensuring the mechanical property of the whole system, but the practical engineering for ensuring the compactness of the concrete in the steel pipe mainly involves 2 difficulties, namely a concrete pouring process and a compactness detection arrangement scheme due to the reasons of the inclination of the column, the complex structure of the diagonal nodes, more partition plates in the nodes and the like in the diagonal column grid system.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a lateral irrigation test device and a detection method for the interior of a plane X-shaped inclined column grid.
The lateral irrigation test device in the plane X-shaped inclined column grid comprises an upper half section of inclined joint, a lower half section of grid inclined column, an anti-overturning inclined support, an anchoring limit foundation, a peripheral framework platform and an imaging detection device;
The upper half section diagonal joint comprises an upper diagonal member end I, an upper diagonal member end II, a lower diagonal member end I, a lower diagonal member end II and a core stiffening plate assembly, wherein the upper diagonal member end I and the upper diagonal member end II are arranged above the core stiffening plate assembly;
the lower half-section grid inclined column comprises a steel pipe inclined column component I and a steel pipe inclined column component II, wherein the steel pipe inclined column component I and the steel pipe inclined column component II are respectively in butt joint with a lower inclined column component end I and a lower inclined column component end II;
The upper half section diagonal joint and the lower half section grid diagonal form a plane X-shaped diagonal grid structure, the plane X-shaped diagonal grid structure is fixedly connected with the anti-overturning diagonal support, the plane X-shaped diagonal grid structure and the anti-overturning diagonal support are fixed on the ground through an anchoring limit foundation, a peripheral framework platform is arranged on the outer side, and a detection position on the plane X-shaped diagonal grid structure is connected with an imaging detection device.
The anti-overturning inclined support is preferably provided with two anti-overturning steel inclined supports, wherein the top of each anti-overturning steel inclined support is provided with a top support conversion piece through an upper end connector, and the top support conversion piece is connected with the gravity center position of the planar X-shaped inclined column grid structure.
The anchoring limit foundation comprises a grid column foot foundation and an inclined support column foot foundation, wherein the bottoms of the first steel pipe inclined column component and the second steel pipe inclined column component are respectively provided with a bottom fixing end plate, and the bottom fixing end plates are fixed on the grid column foot foundation through bottom embedded parts;
the outer sides of the grid column foot foundation and the inclined support column foot foundation are respectively provided with a limit flanging, and the bottoms of the limit flanging are provided with flanging bar planting.
Preferably, the inner side wall plates of the first end of the upper inclined column component and the second end of the upper inclined column component are provided with pouring holes which are connected with a concrete pouring device;
The top cross sections of the first end of the upper inclined column component and the second end of the upper inclined column component are provided with a diaphragm plate and a first end surface flow hole;
the top ends of the first steel pipe inclined column component and the second steel pipe inclined column component are respectively provided with an end diaphragm plate, and inclined column end surface flow holes are formed.
The periphery framework platform comprises a vertical upright rod, a horizontal supporting rod, a steel floor plate and an inclined steel ladder, wherein the periphery framework platform is formed by adopting scaffold steel pipes and a finished inclined steel ladder, and is erected around a plane X-shaped inclined column grid integral structure model and an anti-overturning inclined support.
The cross sections of the first end of the upper inclined column component and the second end of the upper inclined column component are box-shaped, and the side length of the cross section is 500-1000 mm, and the irrigation hole, the first end surface flow hole, the second end surface flow hole, the upper horizontal flange plate flow hole and the lower horizontal flange plate flow hole are all oblong, and the diameter is 200-400 mm;
the cross sections of the first steel pipe inclined column component and the second steel pipe inclined column component are box-shaped, and the side length of the cross section is 500-1000 mm;
The imaging detection device comprises a measuring line arrangement system and an ultrasonic CT imaging system, wherein the measuring line arrangement system comprises an arrangement one exciter, an arrangement one detector and an arrangement two exciters and an arrangement two detectors which are positioned on one group of opposite sides of the steel pipe, the arrangement mode of the measuring line arrangement system is two arrangements, and each arrangement comprises 20-40 excitation points and 20-40 detection points.
The detection method of the lateral irrigation test device in the plane X-shaped inclined column grid comprises the following steps of:
the method comprises the steps of S1, connecting upper half section diagonal nodes with lower half section grid diagonal columns to form a plane X-shaped diagonal column grid structure, installing an anti-overturning diagonal support at the gravity center position of the whole plane X-shaped diagonal column grid structure, and carrying out vertical support and column foot fixing limiting measures on the bottoms of the plane X-shaped diagonal column grid structure and the anti-overturning diagonal support through an anchoring limiting foundation;
S2, selecting a diagonal column cross section detection position, namely respectively installing a survey line arrangement system on the diagonal node detection cross section and the grid diagonal column detection cross section, wherein the survey line arrangement system is connected with an ultrasonic CT imaging system;
S3, obtaining detection results, namely obtaining data of average wave velocity, wave velocity dispersion, qualification rate area and maximum defect scale by adopting an ultrasonic CT imaging method, and respectively obtaining a wave velocity distribution schematic diagram and an intensity distribution schematic diagram of the cross section of the diagonal node detection and the cross section position of the grid diagonal column detection;
S4, judging the irrigation quality, namely, according to the average wave speed, the wave speed dispersion, the qualification rate area and the result of the maximum defect scale, reaching the concrete quality requirement when 4 judging parameters are all satisfied, comprehensively judging according to specific conditions when 1 judging parameter is not satisfied, and judging as unqualified when 2 judging parameters or more are not satisfied;
s5, supplementary detection, namely cutting the test model to carry out supplementary detection of cracks and hollows, wherein the cutting position comprises a model cutting section.
Preferably, in the step S3, the wave velocity distribution diagram is directly obtained through average wave velocity measurement, and the intensity distribution diagram is obtained through comprehensive judgment of four measurement results.
In the step S4, the concrete compactness is reinforced by adopting a drilling grouting method, namely, high-pressure grouting is carried out by adopting first-grade concrete with high strength after drilling at the position where the compactness is detected, and then repair welding is carried out.
The beneficial effects of the invention are as follows:
1) The device and the method for testing the lateral pouring of the interior of the planar X-shaped diagonal grid provided by the invention have the advantages that the structure system is reasonable, the process method is simple and effective, the simulation of the lateral pouring construction process and the simulation of the concrete compactness detection process of the interior concrete of the X-shaped diagonal grid nodes and the diagonal grid members containing complex inner partition plates can be realized, and the advantages of consistent model, identical condition and reasonable and effective process of the device and the method for testing the lateral pouring model of the interior concrete of the planar X-shaped diagonal grid are fully exerted.
2) According to the device and the method for testing the lateral pouring of the interior of the planar X-shaped diagonal grid, the upper half-section diagonal nodes and the lower half-section grid diagonal columns are combined to form the integral structure model of the planar X-shaped diagonal grid, vertical support and column foot fixing limiting measures are carried out through the anti-overturning diagonal support and the anchoring limiting foundation, the lateral pouring of concrete and the imaging detection of intensity distribution are realized through the peripheral framework platform and the imaging detection device to form the integral test device and the detection mode, and the simulation of the lateral pouring process of the interior concrete of the X-shaped diagonal grid nodes and the diagonal grid members with complex inner partition plates and the simulation of the lateral pouring process of the concrete are realized while the bearing performance is ensured.
3) Based on the lateral irrigation model test and detection analysis, the test device and the detection method of the invention control the strength, the stress, the lateral deformation and the cycle ratio by the indexes such as the strength distribution imaging, the bearing capacity control, the overall lateral rigidity resistance, the torsion resistance and the like of the whole space K-type diagonal column grid, thereby improving the reasonable and effective performance of the whole model test device and the detection method.
4) The device and the method for testing the lateral pouring model of the concrete in the plane X-shaped diagonal column grid can effectively meet the requirements of the design strength and compactness of the concrete in the grid diagonal column and diagonal nodes, solve the two difficulties of the lateral pouring process and the compactness detection arrangement scheme of the concrete, can be popularized to practical engineering structures, simplify the detection mode, and achieve the purposes of saving the manufacturing cost and accelerating the construction operation while guaranteeing the stress performance of the structure.
Drawings
Fig. 1 is a schematic structural view of a lateral irrigation model test device (wherein fig. 1a is a schematic overall structure of the device, fig. 1b is a schematic upper half-section diagonal node, fig. 1c is a schematic lower half-section grid diagonal column, fig. 1d is a schematic anti-overturning diagonal support, fig. 1e is a schematic anchoring limit foundation, fig. 1f is a schematic peripheral frame platform, and fig. 1g is a schematic imaging detection device);
FIG. 2 is a schematic elevational view of the structure of FIG. 1a, taken along line A-A;
FIG. 3 is a schematic side view of the structure of FIG. 1a taken along line B-B;
FIG. 4 is a bottom plan view of FIG. 1a taken along line C-C;
FIG. 5 is a side view of the anchoring and spacing foundation taken along line D-D of FIG. 4 (wherein FIG. 5a is a schematic view of the bottom toe foundation and spacing flanges of the lower half-section grid diagonal column taken along line D-D, and FIG. 5b is a schematic view of the bottom toe foundation and spacing flanges of the anti-toppling diagonal support taken along line D-D);
FIG. 6 is a schematic diagram of a line layout of an imaging detection apparatus;
FIG. 7 is a schematic diagram of a detection cross-sectional position arrangement;
FIG. 8 is a graph of ultrasound CT imaging results (where FIG. 8a is a graph of wave velocity distribution and FIG. 8b is a graph of intensity distribution);
FIG. 9 is a schematic diagram of a die cut cross section arrangement;
FIG. 10 is a schematic diagram of an application scenario of the present invention;
FIG. 11 is a flow chart of a side-casting process and imaging detection of the present invention.
The reference numerals show that the first upper diagonal member end 1, the second upper diagonal member end 2, the first lower diagonal member end 3, the second lower diagonal member end 4, the first horizontal steel beam bracket 5, the second horizontal steel beam bracket 6, the core area stiffening plate assembly 7, the pouring hole 8, the first end surface flow hole 9, the upper horizontal flange plate flow hole 10, the lower horizontal flange plate flow hole 11, the second end surface flow hole 12, the first steel pipe diagonal member 13, the second steel pipe diagonal member 14, the diagonal end surface flow hole 15, the bottom fixed end plate 16, the upper end joint 17, the lower end joint 18, the anti-toppling steel diagonal support 19, the top support conversion piece 20, the grid column foot foundation 22, the bottom pre-buried piece 23, the limit flanges 24, the flange ribs 25, the vertical uprights 26, the horizontal support rods 27, the steel panels 28, the diagonal steel ladders 29, the arrangement of an exciter 30, the arrangement of a detector 31, the arrangement of the two exciters 32, the arrangement of the diagonal joint detection cross section 34, the diagonal detection cross section 35, the arrangement of the detector system, the X-section profile of the ultrasonic system, the X-shaped profile, the position profile of the X-shaped profile, the X-shaped profile schematic representation of the position of the ultrasonic system, and the position profile 40, and the position of the cut-section.
Detailed Description
The invention is further described below with reference to examples. The following examples are presented only to aid in the understanding of the invention. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present invention without departing from the principles of the invention, and such modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Example 1
As an embodiment, as shown in figures 1a-1g and figures 2-4, the device and the method for testing the lateral irrigation inside the plane X-shaped diagonal column grid comprise an upper half section diagonal node, a lower half section diagonal column, an anti-overturning diagonal support, an anchoring limit foundation, a peripheral framework platform and an imaging detection device. The upper half section diagonal joint is positioned above, a plane X-shaped joint is formed by converging and diagonal the ends of the box-shaped diagonal column components and the horizontal steel beam brackets on the stiffening plate assembly in the core area, and a plurality of inner partition plates with concrete flow holes are arranged in the plane X-shaped joint; the lower half grid diagonal column is arranged below and comprises two diagonal box steel pipe diagonal column members and a diagonal column bottom plate, the two diagonal box steel pipe diagonal column members and the diagonal column bottom plate are in butt joint with the diagonal column member ends of the upper half diagonal nodes to form a plane X-shaped diagonal column grid integral structure model, the anti-overturning diagonal support is arranged at the rear side and is a lateral steel support structure of the plane X-shaped diagonal column grid integral structure model, two sides of the anti-overturning diagonal support are arranged in pairs to prevent overturning of the plane X-shaped diagonal column grid integral structure model, the anchoring limit foundation is arranged at the bottom and comprises a bottom column foot foundation of the lower half grid diagonal column, a bottom column foot foundation of the anti-overturning diagonal support and limit flanges at the side edges of the bottom column foot foundation, the plane X-shaped diagonal column grid integral structure model, the anti-overturning diagonal support vertical support and the horizontal limit function are achieved, the peripheral framework platform is arranged at the outer side and comprises a vertical support rod, a horizontal support rod, a steel floor plate and a diagonal ladder, the imaging detection device comprises a measuring line arrangement system and an ultrasonic CT imaging system, the measuring line arrangement system is arranged at the opposite sides of the measuring line, the measuring line arrangement system is composed of an exciter and a detector, and the ultrasonic CT imaging system is used for displaying the distribution of the intensity of the concrete in the imaging system to reflect the internal concrete by the actual imaging.
As shown in FIG. 1b and FIG. 2-FIG. 4, the upper half diagonal joint is formed by converging and diagonal the end of a diagonal column component and a horizontal steel beam bracket on a stiffening plate assembly in a core area, and comprises a first end 1 of the diagonal column component, a second end 2 of the diagonal column component, a first end 3 of the diagonal column component, a second end 4 of the diagonal column component, a first 5 of the horizontal steel beam bracket, a second 6 of the horizontal steel beam bracket and a stiffening plate assembly in the core area, so as to form a planar X-shaped diagonal joint, wherein the upper half diagonal joint is mainly used for rigidly connecting an upper node layer and a lower node layer of a diagonal grid super high-rise steel structure system, and a grid cylinder lateral force resisting structure system with extremely high lateral rigidity is formed.
As shown in figures 1b and 2, the first end 1 and the second end 2 of the upper diagonal member of the upper half diagonal joint are positioned above the floor at the joint elevation, so that the steel pipe inner concrete lateral pouring device is suitable for lateral pouring of concrete, pouring holes 8 are formed in inner side wall plates of the first end 1 and the second end 2 of the upper diagonal member, and the lateral pouring operation of the concrete in the steel pipe and the installation operation of an upper steel structure can be simultaneously realized in an inner lateral pouring mode, so that the construction progress is accelerated.
As shown in fig. 1b and 2, a plurality of inner partition plates with concrete flow holes are arranged in the upper half section of the diagonal joint so as to realize effective concrete flow in the diagonal joint, a transverse partition plate is arranged at the top cross section of the end head of the upper diagonal member and provided with a first end flow hole 9, a transverse partition plate is arranged at the bottom cross section of the end head of the lower diagonal member and provided with a second end flow hole 12, and an upper horizontal flange plate flow hole 10 and a lower horizontal flange plate flow hole 11 are respectively arranged at the upper flange plate and the lower flange plate of the stiffening plate assembly 7 in the core area.
In this embodiment, as shown in fig. 1b and fig. 2, the oblique included angles between the upper oblique pillar member end 1 and the upper oblique pillar member end 2, and between the lower oblique pillar member end 3 and the lower oblique pillar member end 4 are 28.4 °, the cross section of the oblique pillar member end is a box-shaped cross section, the side length dimension of the box-shaped cross section is 750mm, and the diameter of the circulation hole is 250mm.
As shown in fig. 1b and fig. 2, because the cross section of the grid diagonal column component of the super high-rise grid system is large, the casting height of each section is large, and a plurality of node reinforcing rib plates are arranged in the component, the high-cast self-compacting concrete is adopted for lateral casting during construction, and meanwhile, the local vibrating method treatment at the diagonal column nodes is considered.
As shown in fig. 1c and fig. 2-4, the lower half grid diagonal column consists of two diagonal steel pipe diagonal column members 13, a steel pipe diagonal column member 14 and a bottom fixing end plate 16, and is in butt joint with a lower diagonal column member end head 3 and a lower diagonal column member end head 4 of an upper half diagonal joint to form an integral structure model of a plane X-shaped diagonal column grid, and end transverse baffles are arranged at the butt joint positions of the tops of the steel pipe diagonal column members 13 and the steel pipe diagonal column member 14, and diagonal column end surface flow holes 15 are formed.
As shown in fig. 1c and fig. 2 to fig. 4, the grid base 21 is fixed to the bottom fixing end plate 16 by a bottom embedded part 23.
As shown in fig. 1c and fig. 2-4, the included angle of the steel pipe inclined column component I13 and the steel pipe inclined column component II 14 is 28.4 degrees, the landing interval is 8.7m, the height of the covered floor is 4 layers, and the side length of the box section is 750mm.
As shown in fig. 1a-1c and fig. 2-4, in this embodiment, the lateral irrigation test device inside the X-type diagonal grid is manufactured with a full scale of 1:1.
As shown in fig. 1d and fig. 2-4, the anti-overturning inclined support is a lateral section steel supporting structure of the integral structure model so as to prevent overturning, the structure is in the form of an inclined support structure and is composed of two anti-overturning section steel inclined supports 19 which are arranged on two sides in pairs, the top of each anti-overturning inclined support is provided with an upper end joint 17, and the anti-overturning inclined support is supported in the area near the gravity center height of the integral structure model through a top support conversion piece 20.
As shown in fig. 1d and fig. 2-4, the anti-overturning profile steel inclined support 19 is a lateral support structure, is a main lateral force resisting member when overturning occurs under external disturbance, is not stressed when no disturbance occurs, and has an H-shaped cross section with a cross section height dimension of 350mm.
As shown in fig. 1d and fig. 2-4, the bottom of the anti-overturning diagonal brace is provided with a lower end joint 18, and the anti-overturning diagonal brace is fixed on a diagonal brace column base 22 through a bottom embedded part 23, so that a stiffening rib is not required to be arranged at the column base connection position.
As shown in fig. 1e and fig. 2 to fig. 4, the anchoring limit foundation comprises a grid column base 21, an inclined support column base 22 and a limit flanging 24, and the anchoring limit foundation respectively plays the roles of a whole structure model, vertical support of an anti-overturning inclined support and horizontal limit.
As shown in fig. 1c, 1e and 2-4, for the grid column base 21, limiting flanges 24 are arranged on two outer sides, two concrete flanges are both in a strip-shaped form, and the flange direction is perpendicular to the X-shaped plane, so as to limit the movement of the whole structural model on two sides in the horizontal direction.
As shown in fig. 1d-1e and fig. 2-4, for the inclined strut column base 22, a limiting flange 24 is arranged at the bottom of the anti-overturning steel inclined strut 19, and two concrete flanges are both in a strip shape, and the flange direction is parallel to the X-shaped plane so as to limit the forward and backward movement of the anti-overturning steel inclined strut in the horizontal direction.
As shown in fig. 1e, 2-4 and 5a-5b, a flange planting rib 25 is arranged at the bottom of the limit flange 24 so as to be fixed on the rigid ground.
As shown in fig. 1e, fig. 2-4, and fig. 5a-5b, in this embodiment, the plane side lengths of the grid column base 21 and the diagonal support column base 22 are 1950mm and 900mm, the base heights are 700mm and 400mm, the internal configuration constructional steel bars are used for reinforcement, and the height of the limit flanging is 300mm.
As shown in fig. 1a, 1f and 2, the peripheral frame platform is composed of a vertical upright rod 26, a horizontal support rod 27, a steel floor plate 28 and an inclined steel ladder 29, so as to form a working platform for lateral concrete pouring and image detection of man operation.
As shown in fig. 1a, 1f and 2, the peripheral frame platform is formed by erecting scaffold steel pipes and finished inclined steel ladders so as to save the cost of the lateral irrigation model test device.
As shown in fig. 1a, 1f and 2, the peripheral frame platform is erected around the whole structure model of the plane X-shaped diagonal column grid and the anti-overturning diagonal support, can be connected and assembled in a penetrating way, and is a self-forming structure system so as to avoid influencing the lateral pouring quality of concrete in the plane X-shaped diagonal column grid.
As shown in fig. 1a and 2, the concrete pouring device 42 is used for pouring the concrete in the steel pipe in the lateral direction, the concrete pouring device 42 comprises a concrete conveying pump, a vibrating rod and the like, and high-performance self-compacting concrete is adopted, so that the concrete in the diagonal joint can effectively circulate.
As shown in fig. 1a, 1g and 6, the imaging detection device comprises a line arrangement system 36 and an ultrasonic CT imaging system 37, wherein the line arrangement system 36 comprises a first exciter 30 arranged on one group of opposite sides of the steel pipe, a first detector 31 arranged on the other group of opposite sides of the steel pipe, a second exciter 32 arranged on the other group of opposite sides of the steel pipe, and a second detector 33 arranged on the other group of opposite sides of the steel pipe, and two groups of excitation points and detection points in total.
As shown in fig. 1a, 1g and 6, in this embodiment, each array includes 30 excitation points and 30 detection points, and the distance between the knocking point and the receiving point is 50mm.
As shown in fig. 1a, 1g, 8a-8b, the ultrasonic CT imaging system 37 reflects the compactness profile of the concrete in the lateral casting by displaying the imaging results of the intensity profile map 39.
As shown in fig. 1a, 2 and 7, the detection positions of the cross sections of the diagonal members comprise a diagonal joint detection cross section 34 and a grid diagonal detection cross section 35, the diagonal joint detection cross section 34 comprises three typical positions of the vicinity of the lower transverse diaphragm of the diagonal joint on the lower side of the diagonal joint, the vicinity of the lower flange plate of the diagonal joint and the vicinity of the lower flange plate of the diagonal joint, and the grid diagonal detection cross section 35 comprises two typical positions of the vicinity of the lower transverse diaphragm of the bottom of the diagonal column and the vicinity of the lower transverse diaphragm of the middle section of the diagonal column.
As shown in fig. 1a, fig. 2, fig. 7 and fig. 8a-8b, due to the fact that the compactness of the concrete with the same detection section is uneven, the corresponding concrete wave speeds are different, defect judgment is carried out through comprehensive evaluation of a plurality of statistical parameters, and the judgment parameters comprise average wave speed, wave speed dispersion, qualification rate area and maximum defect scale.
As shown in fig. 1a, 2, 7 and 8a-8b, the wave velocity distribution diagram 38 can be directly obtained by measuring the wave velocity of concrete, the intensity distribution diagram 39 is obtained by comprehensively judging four measurement results, when the 4 judgment parameters are all satisfied, the concrete quality requirement is met, when 1 is not satisfied, the comprehensive judgment is carried out according to the specific situation, and when 2 or more are not satisfied, the failure is obtained.
As shown in fig. 1a, 2-4 and 9, as a supplementary detection method, the test model may be further cut to more intuitively check the concrete compactness condition inside the steel pipe, such as cracks, hollows and the like, and the cutting position includes a model cutting section 40.
As shown in fig. 1a and 10, the application scenario of the device and the method for testing the lateral pouring model of the concrete in the plane X-shaped diagonal column grid comprises an application position 41 of a middle plane X-shaped node of the diagonal grid structure system or other similar situations.
Example two
As shown in fig. 11, as an example, the specific flow of the detection method of the lateral irrigation test device inside the plane X-type diagonal column grid is as follows:
S1, establishing a lateral irrigation test device in a plane X-shaped inclined column grid, wherein the lateral irrigation test device comprises an upper half section inclined joint, a lower half section grid inclined column, an anti-overturning inclined support, an anchoring limit foundation, a peripheral framework platform and an imaging detection device;
s2, selecting a detection position of the cross section of the diagonal column, wherein the detection position comprises a diagonal joint detection cross section 34 and a grid diagonal column detection cross section 35;
S3, imaging results of detection positions of cross sections of inclined columns, wherein judging parameters comprise average wave velocity, wave velocity dispersion, qualification rate area and maximum defect scale, a wave velocity distribution diagram 38 is directly obtained through average wave velocity measurement, and an intensity distribution diagram 39 is obtained through comprehensive judgment of four measurement results;
S4, when the 4 judging parameters are all met, the concrete quality requirement is met, when 1 is not met, comprehensive judgment is carried out according to specific conditions, and when 2 or more are not met, the concrete quality requirement is not met;
S5, cutting the test model to perform crack and cavity supplementary detection, wherein the cutting position comprises a model cutting section 40.
Example III
The invention also provides an application of the device and the method for testing the lateral pouring of the interior of the planar X-shaped diagonal grid in the process simulation of the lateral pouring of the interior concrete of the X-shaped diagonal grid containing the complex inner partition plate and the diagonal grid component and the process simulation of the detection of the compactness of the concrete, wherein the application scene comprises an application position 41 or other similar situations of the middle planar X-shaped node of the diagonal grid structure system.
The engineering referenceability and practicality of the actual process are considered, a full-scale model test device for lateral pouring of concrete in the X-shaped diagonal column grid is established, and the compactness of the lateral pouring concrete in the full-scale model test device is detected through an ultrasonic CT technology, so that a reasonable and effective lateral pouring process is obtained and is applied to similar actual engineering.
Aiming at the detection arrangement and imaging detection scheme of the X-shaped inclined column grid, the concrete lateral pouring quality of the whole structure is obtained and ensured, and a basis and a reference are provided for the concrete-filled steel tube lateral pouring method, the quality detection and the arrangement scheme of the actual engineering of the inclined column grid system.
The technology can effectively meet the requirements of the design strength and compactness of the concrete in the grid diagonal columns and diagonal nodes, and for economic consideration, on the basis of adopting the same lateral pouring technology, the corresponding internal concrete detection of the whole diagonal column grid system still adopts a conventional ultrasonic detection method, corresponding judgment parameters are generally acoustic parameters such as wave speed, wave shape and the like, and for the defect of the compactness of the concrete, the drilling grouting method is adopted for reinforcing, namely, high-pressure grouting is carried out by adopting high-strength first-grade concrete after drilling at the position of the defect of the compactness detection, and then repair welding and sealing are carried out.

Claims (7)

1.一种平面X型斜柱网格内部侧向浇灌试验装置，其特征在于，包括：上半段斜交节点、下半段网格斜柱、防倾覆斜支撑、锚固限位基础、外围构架平台和成像检测装置；所述成像检测装置包括测线布置系统（36）和超声CT成像系统（37）；1. A plane X-shaped inclined column grid internal lateral pouring test device, characterized in that it comprises: an upper half oblique intersection node, a lower half grid inclined column, an anti-overturning oblique support, an anchor limit foundation, a peripheral frame platform and an imaging detection device; the imaging detection device comprises a survey line layout system (36) and an ultrasonic CT imaging system (37); 所述上半段斜交节点，包括上斜柱构件端头一（1）、上斜柱构件端头二（2）、下斜柱构件端头一（3）、下斜柱构件端头二（4）和核心区加劲板组合体（7）；上斜柱构件端头一（1）和上斜柱构件端头二（2）安装在核心区加劲板组合体（7）上方，下斜柱构件端头一（3）和下斜柱构件端头二（4）安装在核心区加劲板组合体（7）下方；核心区加劲板组合体（7）侧边设有水平钢梁牛腿一（5）和水平钢梁牛腿二（6）；The upper half oblique intersection node comprises an upper oblique column member end head (1), an upper oblique column member end head (2), a lower oblique column member end head (3), a lower oblique column member end head (4) and a core area stiffening plate assembly (7); the upper oblique column member end head (1) and the upper oblique column member end head (2) are installed above the core area stiffening plate assembly (7), and the lower oblique column member end head (3) and the lower oblique column member end head (4) are installed below the core area stiffening plate assembly (7); and a horizontal steel beam bracket (5) and a horizontal steel beam bracket (6) are provided on the side of the core area stiffening plate assembly (7); 所述下半段网格斜柱包括钢管斜柱构件一（13）和钢管斜柱构件二（14）；钢管斜柱构件一（13）、钢管斜柱构件二（14）分别与下斜柱构件端头一（3）、下斜柱构件端头二（4）对接；The lower half grid inclined column comprises a steel tube inclined column component 1 (13) and a steel tube inclined column component 2 (14); the steel tube inclined column component 1 (13) and the steel tube inclined column component 2 (14) are respectively connected to the lower inclined column component end 1 (3) and the lower inclined column component end 2 (4); 上半段斜交节点和下半段网格斜柱组成平面X型斜柱网格结构，平面X型斜柱网格结构与防倾覆斜支撑固定连接；平面X型斜柱网格结构和防倾覆斜支撑通过锚固限位基础固定在地面上；外围构架平台位设置于外侧；平面X型斜柱网格结构上的检测位置连接成像检测装置；The upper half oblique intersection nodes and the lower half grid oblique columns form a plane X-shaped oblique column grid structure, and the plane X-shaped oblique column grid structure is fixedly connected to the anti-overturning oblique support; the plane X-shaped oblique column grid structure and the anti-overturning oblique support are fixed to the ground through an anchor limit foundation; the peripheral frame platform is set on the outside; the detection position on the plane X-shaped oblique column grid structure is connected to the imaging detection device; 防倾覆斜支撑包括两根防倾覆型钢斜支撑（19）；防倾覆型钢斜支撑（19）顶部通过上端部接头（17）安装顶部支撑转换件（20），顶部支撑转换件（20）连接平面X型斜柱网格结构的重心位置；The anti-overturning inclined support comprises two anti-overturning steel inclined supports (19); a top support conversion member (20) is installed on the top of the anti-overturning steel inclined support (19) through an upper end joint (17); the top support conversion member (20) is connected to the center of gravity of the plane X-shaped inclined column grid structure; 所述锚固限位基础包括网格柱脚基础（21）和斜支撑柱脚基础（22）；钢管斜柱构件一（13）和钢管斜柱构件二（14）底部均设有底部固定端板（16），底部固定端板（16）通过底部预埋件（23）固定于网格柱脚基础（21）；防倾覆支撑架的底部设有下端部接头（18），下端部接头（18）通过底部预埋件（23）固定于斜支撑柱脚基础（22）；The anchoring and limiting foundation comprises a grid column foot foundation (21) and an inclined support column foot foundation (22); the bottoms of the first steel tube inclined column member (13) and the second steel tube inclined column member (14) are both provided with bottom fixed end plates (16), and the bottom fixed end plates (16) are fixed to the grid column foot foundation (21) via bottom embedded parts (23); the bottom of the anti-overturning support frame is provided with a lower end joint (18), and the lower end joint (18) is fixed to the inclined support column foot foundation (22) via bottom embedded parts (23); 网格柱脚基础（21）和斜支撑柱脚基础（22）的外侧均设有限位翻边（24）；限位翻边（24）的底部设置翻边植筋（25）；The outer sides of the grid column base (21) and the inclined support column base (22) are both provided with limiting flanges (24); the bottom of the limiting flanges (24) is provided with flanged embedded reinforcement (25); 上斜柱构件端头一（1）和上斜柱构件端头二（2）的内侧壁板上设有浇灌孔（8），浇灌孔（8）连接混凝土浇灌装置（42）；A pouring hole (8) is provided on the inner wall plate of the upper inclined column component end 1 (1) and the upper inclined column component end 2 (2), and the pouring hole (8) is connected to a concrete pouring device (42); 上斜柱构件端头一（1）和上斜柱构件端头二（2）的顶部横截面处设置横隔板，并开设第一端面流通孔（9）；下斜柱构件端头一（3）和下斜柱构件端头二（4）的底部横截面处设置横隔板，并开设第二端面流通孔（12）；核心区加劲板组合体（7）上设有上水平翼缘板流通孔（10）和下水平翼缘板流通孔（11）；A transverse partition is provided at the top cross section of the upper inclined column component end head 1 (1) and the upper inclined column component end head 2 (2), and a first end face flow hole (9) is provided; a transverse partition is provided at the bottom cross section of the lower inclined column component end head 1 (3) and the lower inclined column component end head 2 (4), and a second end face flow hole (12) is provided; an upper horizontal flange plate flow hole (10) and a lower horizontal flange plate flow hole (11) are provided on the core area stiffening plate assembly (7); 钢管斜柱构件一（13）和钢管斜柱构件二（14）的顶端均设有端部横隔板，并开设斜柱端面流通孔（15）。The top ends of the steel tube inclined column component 1 (13) and the steel tube inclined column component 2 (14) are both provided with end transverse partitions, and inclined column end surface flow holes (15) are provided. 2.根据权利要求1所述的平面X型斜柱网格内部侧向浇灌试验装置，其特征在于：所述外围构架平台包括竖向立杆（26）、水平支撑杆（27）、钢楼面板（28）和斜钢梯（29）；外围构架平台采用脚手架钢管和成品斜钢梯，围绕平面X型斜柱网格整体结构模型和防倾覆斜支撑搭设。2. The internal lateral pouring test device of the plane X-shaped inclined column grid according to claim 1 is characterized in that: the peripheral frame platform includes vertical poles (26), horizontal support poles (27), steel floor panels (28) and inclined steel ladders (29); the peripheral frame platform adopts scaffolding steel pipes and finished inclined steel ladders, and is erected around the overall structural model of the plane X-shaped inclined column grid and the anti-overturning inclined support. 3.根据权利要求1所述的平面X型斜柱网格内部侧向浇灌试验装置，其特征在于：上斜柱构件端头一（1）和上斜柱构件端头二（2）的截面为箱型，截面边长尺寸为500～1000mm；浇灌孔（8）、第一端面流通孔（9）、第二端面流通孔（12）、上水平翼缘板流通孔（10）和下水平翼缘板流通孔（11）均为长圆形，直径为200～400mm；3. The internal lateral pouring test device of the plane X-shaped inclined column grid according to claim 1 is characterized in that: the cross-section of the upper inclined column component end head 1 (1) and the upper inclined column component end head 2 (2) is box-shaped, and the cross-sectional side length is 500-1000 mm; the pouring hole (8), the first end surface flow hole (9), the second end surface flow hole (12), the upper horizontal flange plate flow hole (10) and the lower horizontal flange plate flow hole (11) are all oblong, with a diameter of 200-400 mm; 钢管斜柱构件一（13）和钢管斜柱构件二（14）的截面为箱型，截面边长尺寸为500～1000mm；防倾覆型钢斜支撑（19）的截面为H型，截面高度为300～500mm。The cross-sections of the steel tube inclined column member 1 (13) and the steel tube inclined column member 2 (14) are box-shaped, with a cross-sectional side length of 500 to 1000 mm; the cross-section of the anti-overturning steel inclined support (19) is H-shaped, with a cross-sectional height of 300 to 500 mm. 4.根据权利要求1所述的平面X型斜柱网格内部侧向浇灌试验装置，其特征在于：测线布置系统（36）包括位于钢管一组对边的排列一激发器（30）、排列一检波器（31）和位于钢管另一组对边的排列二激发器（32）、排列二检波器（33）；测线布置系统的布置方式为两个排列，每个排列包含20～40个激发点、20～40个检波点。4. The plane X-shaped inclined column grid internal lateral pouring test device according to claim 1 is characterized in that: the measurement line layout system (36) includes an arrangement of an exciter (30) and an arrangement of a detector (31) located on one group of opposite sides of the steel pipe, and an arrangement of a second exciter (32) and an arrangement of a second detector (33) located on another group of opposite sides of the steel pipe; the arrangement of the measurement line layout system is two arrangements, each arrangement includes 20 to 40 excitation points and 20 to 40 detection points. 5.如权利要求1所述的平面X型斜柱网格内部侧向浇灌试验装置的检测方法，其特征在于，包括以下步骤：5. The detection method of the plane X-shaped inclined column grid internal lateral pouring test device according to claim 1, characterized in that it comprises the following steps: S1、将上半段斜交节点和下半段网格斜柱连接，形成平面X型斜柱网格结构；再在平面X型斜柱网格整体结构的重心位置安装防倾覆斜支撑，通过锚固限位基础对平面X型斜柱网格结构和防倾覆斜支撑的底部进行竖向支撑和柱脚固定限位措施；围绕平面X型斜柱网格结构和防倾覆斜支撑搭建外围构架平台；使用混凝土浇灌装置（42），通过浇灌孔（8）进行混凝土的侧向浇灌；S1, connecting the upper half oblique intersection nodes and the lower half grid oblique columns to form a plane X-shaped oblique column grid structure; then installing an anti-overturning oblique support at the center of gravity of the plane X-shaped oblique column grid structure as a whole, and providing vertical support and column foot fixing and limiting measures to the bottom of the plane X-shaped oblique column grid structure and the anti-overturning oblique support through an anchoring limit foundation; building an external frame platform around the plane X-shaped oblique column grid structure and the anti-overturning oblique support; and using a concrete pouring device (42) to perform lateral pouring of concrete through the pouring holes (8); S2、选取斜柱横截面检测位置：在斜交节点检测横截面（34）和网格斜柱检测横截面（35）分别安装测线布置系统（36），测线布置系统（36）连接超声CT成像系统（37）；S2, selecting the oblique column cross section detection position: installing a survey line arrangement system (36) at the oblique node detection cross section (34) and the grid oblique column detection cross section (35), respectively, and the survey line arrangement system (36) is connected to the ultrasonic CT imaging system (37); S3、获得检测结果：采用超声CT成像方法得到平均波速、波速离散度、合格率面积和最大缺陷尺度的数据，并分别获得斜交节点检测横截面（34）和网格斜柱检测横截面（35）位置的波速分布示意图（38）和强度分布示意图（39）；S3. Obtaining the test results: using ultrasonic CT imaging method to obtain data on average wave velocity, wave velocity dispersion, qualified rate area and maximum defect size, and respectively obtaining wave velocity distribution diagram (38) and intensity distribution diagram (39) of the oblique node test cross section (34) and the grid oblique column test cross section (35); S4、判定浇灌质量：根据平均波速、波速离散度、合格率面积和最大缺陷尺度的结果，当4项判定参数均满足时即达到混凝土质量要求；当有1项不满足时，应根据具体情况进行综合判定；当有2项及以上不满足时，即为不合格；S4. Determine the pouring quality: According to the results of average wave velocity, wave velocity dispersion, qualified area and maximum defect size, when all four determination parameters are met, the concrete quality requirements are met; when one item is not met, a comprehensive judgment should be made based on the specific situation; when two or more items are not met, it is unqualified; S5、补充检测：将试验模型切割开进行裂缝、空洞的补充检测，切割位置包括模型切割剖断面（40）。S5. Supplementary testing: cutting the test model to conduct supplementary testing for cracks and voids, the cutting position including the model cutting section (40). 6.如权利要求5所述的平面X型斜柱网格内部侧向浇灌试验装置的检测方法，其特征在于，步骤S3中：波速分布示意图（38）通过平均波速测定直接获得，强度分布示意图（39）通过四项测定结果综合判定获得。6. The detection method of the plane X-shaped inclined column grid internal lateral pouring test device as described in claim 5 is characterized in that in step S3: the wave velocity distribution diagram (38) is directly obtained by average wave velocity measurement, and the intensity distribution diagram (39) is obtained by comprehensive determination of four measurement results. 7.如权利要求5所述的平面X型斜柱网格内部侧向浇灌试验装置的检测方法，其特征在于，步骤S4中：对于混凝土密实度不足之处，采用钻孔压浆法补强，即在检测密实度不足位置钻孔后采用强度高一级混凝土进行高压注浆，而后补焊封回。7. The detection method of the internal lateral pouring test device of the plane X-shaped inclined column grid as described in claim 5 is characterized in that in step S4: for the places where the concrete density is insufficient, the drilling and grouting method is adopted for reinforcement, that is, after drilling holes at the positions where the density is insufficient, high-pressure grouting is carried out using concrete of a higher strength level, and then the concrete is welded and sealed.
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