CN108614913A - The computational methods and device of the concrete unit ratio of reinforcement - Google Patents
The computational methods and device of the concrete unit ratio of reinforcement Download PDFInfo
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Abstract
The present invention provides a kind of computational methods and device of the concrete unit ratio of reinforcement, wherein this method includes：Obtain the concrete model and rebar model of target construction, concrete model is divided using default geometric units, obtain concrete finite element model, the concrete finite element model includes M concrete unit, M is the integer more than 0, rebar model is divided using default line type cell, obtain reinforcing bar finite element model, the reinforcing bar finite element model includes N number of reinforcing bar unit, N is the integer more than 0, according to the location information of the reinforcing bar unit, the location information of the concrete unit, the ratio of reinforcement of each concrete unit is obtained.Realize can suitable for more complex engineerings the concrete unit ratio of reinforcement calculating, and can be provided for follow-up armored concrete synergy finite element method (fem) analysis data support.
Description
Technical field
The present invention relates to engineering numerical simulation field more particularly to a kind of computational methods and dress of the concrete unit ratio of reinforcement
It sets.
Background technology
The dam bodys such as gravity dam, arch dam are common large-scale hydraulic buildings, and some of them are distributed in the western macroseisms in China
There is the risk of cracking in area, when an earthquake occurs, dam body, and therefore, it is necessary to increase the shock resistance of dam body by dam facing arrangement of reinforcement.Generally
Ground needs the ratio of reinforcement for calculating the concrete of building in engineering, by the ratio of reinforcement of concrete come the arrangement of reinforcement work of reaction engineering
Condition, meanwhile, the ratio of reinforcement by controlling concrete can also control the damage -form of structural elements in engineering, and overreinforced is avoided to destroy
The occurrence of being destroyed with few muscle.
The method that the prior art calculates the ratio of reinforcement of building concrete is obtained by reinforcing bar volume divided by volume of concrete
To the ratio of reinforcement of concrete.The method of the prior art is only applicable to the meter of the ratio of reinforcement of this kind of simple building such as beam, column, plate
It calculates, for building model complicated in engineering and complicated arrangement of reinforcement operating mode and is not suitable for, and obtained by the prior art
The ratio of reinforcement of concrete can not provide data support for follow-up armored concrete synergy finite element analysis.
Invention content
For the defects in the prior art, the present invention provides a kind of computational methods and device of the concrete unit ratio of reinforcement.
On the one hand, the present invention provides a kind of computational methods of the concrete unit ratio of reinforcement, the method includes：
Obtain the concrete model and rebar model of target construction；
The concrete model is divided using default solid geometry unit, obtains concrete finite element model, institute
It includes M concrete unit to state concrete finite element model, and M is the integer more than 0；
The rebar model is divided using default line type cell, obtains reinforcing bar finite element model, the reinforcing bar has
Limit meta-model includes N number of reinforcing bar unit, and N is the integer more than 0；
According to the location information of the reinforcing bar unit, the location information of the concrete unit, each concrete unit is obtained
The ratio of reinforcement.
Further, it according to the location information of the reinforcing bar unit, the location information of the concrete unit, obtains each mixed
Before the ratio of reinforcement of solidifying soil unit, further include：
According to the position of the shape function of the concrete unit, the location information of the reinforcing bar unit, the concrete unit
Confidence ceases, and establishes the mapping relations of the reinforcing bar unit and the concrete unit.
Further, the location information, described mixed of the shape function according to the concrete unit, the reinforcing bar unit
The location information of solidifying soil unit, establishes the mapping relations of the reinforcing bar unit and the concrete unit, including：
According to the shape function of the concrete unit, the location information of the concrete unit, to the concrete unit
Isoparametric conversion, and calculated using Newton iteration method, calculate the local coordinate of each reinforcing bar cell terminals；
By the concrete unit where the local coordinate of the reinforcing bar cell terminals, establishes mapping with the reinforcing bar unit and close
System.
Further, it according to the location information of the reinforcing bar unit, the location information of the concrete unit, obtains each mixed
The ratio of reinforcement of solidifying soil unit, including：
According to the mapping relations of the reinforcing bar unit and the concrete unit, traverses each concrete unit and there is mapping pass
The reinforcing bar unit of system；
According to each concrete unit there are in the reinforcing bar unit of mapping relations, each reinforcing bar unit is located at corresponding concrete unit
Interior number of endpoint obtains the ratio of reinforcement of each concrete unit.
Further, according to each concrete unit there are in the reinforcing bar unit of mapping relations, each reinforcing bar unit is located at correspondence
Number of endpoint in concrete unit obtains the ratio of reinforcement of each concrete unit, including：
Calculate volume of each concrete unit there are the reinforcing bar unit of mapping relations in corresponding concrete unit, wherein
If it is 1 that reinforcing bar unit, which is located at the number of endpoint in corresponding concrete unit, the reinforcing bar unit is in corresponding concrete unit
Volume is the 1/2 of the reinforcing bar unit actual volume；If it is 2 that reinforcing bar unit, which is located at the number of endpoint in corresponding concrete unit,
Volume of the reinforcing bar unit in corresponding concrete unit is the reinforcing bar unit actual volume；
Volume according to each concrete unit there are the reinforcing bar unit of mapping relations in corresponding concrete unit, obtains institute
State the ratio of reinforcement of each concrete unit.
On the other hand, the present invention also provides a kind of computing device of the concrete unit ratio of reinforcement, described device includes：
Acquisition module, concrete model and rebar model for obtaining target construction；
First mesh generation module is obtained for being divided to the concrete model using default solid geometry unit
It includes M concrete unit to take concrete finite element model, the concrete finite element model, and M is the integer more than 0；
Second mesh generation module obtains reinforcing bar for being divided to the rebar model using default line type cell
Finite element model, the reinforcing bar finite element model include N number of reinforcing bar unit, and N is the integer more than 0；
Computing module is obtained for the location information according to the location information of the reinforcing bar unit, the concrete unit
The ratio of reinforcement of each concrete unit.
Further, the computing module is additionally operable in location information, the concrete list according to the reinforcing bar unit
The location information of member, before the ratio of reinforcement for obtaining each concrete unit, according to the shape function of the concrete unit, the reinforcing bar
The location information of the location information of unit, the concrete unit establishes reflecting for the reinforcing bar unit and the concrete unit
Penetrate relationship.
Further, the computing module is specifically used for shape function, the concrete list according to the concrete unit
The location information of member is calculated to the concrete unit isoparametric conversion, and using Newton iteration method, calculates each reinforcing bar unit
The local coordinate of endpoint；
By the concrete unit where the local coordinate of the reinforcing bar cell terminals, establishes mapping with the reinforcing bar unit and close
System.
Further, the computing module is specifically used for the mapping according to the reinforcing bar unit and the concrete unit
Relationship traverses reinforcing bar unit of each concrete unit there are mapping relations；
According to each concrete unit there are in the reinforcing bar unit of mapping relations, each reinforcing bar unit is located at corresponding concrete unit
Interior number of endpoint obtains the ratio of reinforcement of each concrete unit.
Further, the computing module, specifically for calculating each concrete unit, there are the reinforcing bar units of mapping relations
Volume in corresponding concrete unit, wherein if it is 1 that reinforcing bar unit, which is located at the number of endpoint in corresponding concrete unit, institute
It is the 1/2 of the reinforcing bar unit actual volume to state volume of the reinforcing bar unit in corresponding concrete unit；If reinforcing bar unit is located at
Number of endpoint in corresponding concrete unit is 2, then volume of the reinforcing bar unit in corresponding concrete unit is the reinforcing bar
Unit actual volume；
Volume according to each concrete unit there are the reinforcing bar unit of mapping relations in corresponding concrete unit, obtains institute
State the ratio of reinforcement of each concrete unit.
In the computational methods and device of the concrete unit ratio of reinforcement provided by the invention, by obtaining the mixed of target construction
Solidifying soil model and rebar model, divide the concrete model using default solid geometry unit, and obtaining concrete has
Meta-model is limited, the concrete finite element model includes M concrete unit, and M is the integer more than 0, using default line style list
Member divides the rebar model, obtains reinforcing bar finite element model, the reinforcing bar finite element model includes N number of reinforcing bar list
Member, N are the integer more than 0, according to the location information of the reinforcing bar unit, the location information of the concrete unit, are obtained each
The ratio of reinforcement of concrete unit.I.e. especially by the concrete finite element model and reinforcing bar finite element for obtaining target construction respectively
Model, and calculated using finite element isoparametric conversion shape function and Newton iteration method, to obtain the arrangement of reinforcement of concrete unit
Rate, realize can suitable for more complex engineerings the concrete unit ratio of reinforcement calculating, and obtain target structures
The ratio of reinforcement of the concrete unit of object can provide data support for follow-up armored concrete synergy finite element method (fem) analysis.
Description of the drawings
It, below will be to attached drawing needed in the description of each embodiment in order to illustrate more clearly of various embodiments of the present invention
It is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, common for this field
For technical staff, without having to pay creative labor, other drawings may also be obtained based on these drawings.
Fig. 1 is the flow diagram of the computational methods embodiment one of the concrete unit ratio of reinforcement provided by the invention；
Fig. 2 is local coordinate system schematic diagram in concrete finite element model；
Fig. 3 is the structural schematic diagram of the computing device embodiment one of the concrete unit ratio of reinforcement provided by the invention；
Fig. 4 is the structural schematic diagram of the computing device embodiment two of the concrete unit ratio of reinforcement provided by the invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the flow diagram of the computational methods embodiment one of the concrete unit ratio of reinforcement provided by the invention, such as Fig. 1
Shown, this method includes：
S101, the concrete model and rebar model for obtaining target construction.
Separate type Reinforced Concrete Model is established under global coordinate system according to physical object building, it is, according to
Physical object building establishes concrete model and rebar model respectively under global coordinate system.Also, assume in the model
It is bonded well between concrete and rebar, does not have Relative sliding.
S102, the concrete model is divided using default solid geometry unit, obtains concrete finite element mould
Type, the concrete finite element model include M concrete unit, and M is the integer more than 0.
Optionally, above-mentioned default solid geometry unit can be Three-Dimensional 8-node hexahedral element, three-dimensional 6 node triangular prism lists
Member, three-dimensional 4 node tetrahedron elements, it should be noted that above-mentioned default solid geometry unit is alternatively other solid geometry lists
Member, is not limited to above-mentioned three kinds of solid geometry units, and the present invention does not limit this.
It is divided to above-mentioned concrete model, when obtaining concrete finite element model, presets solid geometry unit
Size should not be too large, and the size for presetting solid geometry unit is bigger, although calculation amount reduces, obtained result accuracy
Low, the size for presetting solid geometry unit is smaller, obtained result of calculation accuracy higher, but calculation amount is larger, therefore, needle
The solid geometry unit that suitable dimension can be chosen according to actual conditions to the concrete model of different target constructions is drawn
Point, obtain finite element model.Optionally in a kind of realization method, the size for presetting each length of side of solid geometry unit can be 1~2
Rice.
Further, above-mentioned concrete finite element model includes M concrete unit, and each concrete unit has multiple sections
Point.For example, using the length of side to be divided to concrete model for 1 meter of square, then each concrete unit has 8 sections
Point.
It should be noted that in practical applications, one or more solid geometry units can be selected according to actual conditions
The concrete model of target construction is divided, that is to say, that for the different zones of the concrete model of target construction
Different solid geometry units can be selected to be divided, keep the concrete finite element model of acquisition more accurate, the present invention couple
This is not limited.
S103, the rebar model is divided using default line type cell, obtains reinforcing bar finite element model, the steel
Muscle finite element model includes N number of reinforcing bar unit, and N is the integer more than 0.
Since reinforcing bar is a kind of elongated material, its Transverse Shear Strength usually can be ignored, it is believed that it is subjected only to along rectangular
To axle power, therefore, to rebar model using line type cell carry out divide obtain reinforcing bar finite element model.Such as：Using three-dimensional 2
Nodal line unit divides rebar model.
Wherein, the size of line type cell is smaller, and obtained result of calculation accuracy is high, and the size of line type cell is bigger, obtains
The result accuracy arrived is lower.For the synergy effect of fine analog armored concrete, reduces and calculate error, optionally one
In kind realization method, the size of line type cell can be the 5% of three-dimensional concrete geometric units size.For example, when using the length of side for 1
The square of rice divides concrete model, then the size of line type cell is 0.05 meter.
Further, above-mentioned reinforcing bar finite element model includes N number of reinforcing bar unit, and each reinforcing bar unit includes that there are two ends
Point.And all endpoints of above-mentioned N number of reinforcing bar unit are numbered.
S104, according to the location information of the reinforcing bar unit, the location information of the concrete unit, obtain each concrete
The ratio of reinforcement of unit.
The present embodiment, by obtaining the concrete model and rebar model of target construction, using default solid geometry list
Member divides the concrete model, obtains concrete finite element model, and the concrete finite element model includes M mixed
Solidifying soil unit, M is the integer more than 0, is divided to the rebar model using default line type cell, and reinforcing bar finite element is obtained
Model, the reinforcing bar finite element model include N number of reinforcing bar unit, and N is the integer more than 0, according to the position of the reinforcing bar unit
The location information of information, the concrete unit obtains the ratio of reinforcement of each concrete unit.I.e. especially by obtaining target respectively
The concrete finite element model and reinforcing bar finite element model of building, and use finite element isoparametric conversion shape function and Newton iteration
Method is calculated, to obtain the ratio of reinforcement of concrete unit, realize can suitable for more complex engineerings concrete
The calculating of the unit ratio of reinforcement, and the ratio of reinforcement of the concrete unit of the target construction obtained can be follow-up armored concrete
Synergy finite element method (fem) analysis provides data and supports.
Optionally in a kind of realization method, according to the location information of the reinforcing bar unit, the coagulation in above-described embodiment
The location information of native unit obtains the ratio of reinforcement of each concrete unit, can there is following procedure：
First, according to the shape function of the concrete unit, the location information of the reinforcing bar unit, the concrete unit
Location information, establish the mapping relations of the reinforcing bar unit and the concrete unit.
Specifically, according to the shape function of the concrete unit, the location information of the concrete unit, to the coagulation
Native unit isoparametric conversion, and calculated using Newton iteration method, calculate the local coordinate of each reinforcing bar cell terminals.
By the concrete unit where the local coordinate of the reinforcing bar cell terminals, establishes mapping with the reinforcing bar unit and close
System.
What needs to be explained here is that when obtaining local coordinate of the reinforcing bar cell terminals in a certain concrete unit,
Local coordinate system is established according to the concrete unit first.For example, using three-dimensional eight node hexahedral elements to concrete model
After being divided, corresponding concrete unit schematic diagram and according to the concrete unit establish local coordinate system schematic diagram such as
Shown in Fig. 2, naturally it is also possible to local coordinate system is established as origin using other nodes in the concrete unit, for same described
Concrete unit establishes different local coordinate systems and has no effect on result of calculation.When using other kinds of solid geometry unit pair
When concrete model is divided, the side of corresponding concrete unit and the local coordinate system established according to the concrete unit
Method is similar with existing method, and the present invention is not described in detail herein.
In practical applications, based on the finite element isoparametric conversion of concrete unit, existed according to the endpoint of reinforcing bar unit
Coordinate under global coordinate system calculates its corresponding local coordinate, so judge reinforcing bar unit endpoint local coordinate whether
In the concrete unit.
The unit that geometry distorts in the unit of regular geometry to whole coordinate in local coordinate, coordinate are converted such as
Under：
Wherein, m is the node number of concrete unit, xi、yi、ziIt is certain concrete unit node in whole coordinate
Coordinate value, ξ, η, ζ are local coordinate system, Ni(ξ, η, ζ) is the shape function with Local Coordinate Representations, Ni(ξ, η, ζ) can be from related
It is got according to default solid geometry cell type in finite element method books.
According to formula (1), enable：
The whole coordinate of one of them known reinforcing bar cell terminals isUtilize equationSeek local coordinate of the reinforcing bar cell terminals in the concrete unit
It enables：
It solves：
It can be obtained according to Newton iteration method：
Wherein, in formula (5)For the iteration result of the (n+1)th step,For the iteration result of the n-th step.
It enables：
Wherein, in formula (8)Referred to as Jacobi Jacobi matrixes,ForInverse matrix.
It willSubstituting into (5), (6), (8) can obtain：
If meeting | ξn+1-ξn|≤ε,|ηn+1-ηn|≤ε,|ζn+1-ζn|≤ε, iteration terminate, and ε is the convergence tolorence of setting,
Then whole coordinate isLocal coordinate of the reinforcing bar cell terminals in the concrete unit be：
Further, the local coordinate according to the reinforcing bar cell terminals in the concrete unit and the concrete list
The location information of member is judged.
If the local coordinate of the reinforcing bar cell terminals in the concrete unit, sets up the reinforcing bar unit side
Mapping relations between period and the concrete unit number.
If the local coordinate of the reinforcing bar cell terminals not in the concrete unit, traverses next concrete list
Member until finding concrete unit corresponding with the reinforcing bar cell terminals, and establishes corresponding mapping relations.
It should be noted that judging the local coordinate of the reinforcing bar cell terminals whether in the coagulation by coordinate position
Similarly to the prior art, the present invention is not described in detail method in native unit herein.
Optionally in a kind of realization method, if the local coordinate of the reinforcing bar cell terminals is not in the concrete unit
It is interior, it is traversed according to the ascending sequence of concrete unit number.
Further, according to the mapping relations of the reinforcing bar unit and the concrete unit, each concrete unit is traversed
There are the reinforcing bar units of mapping relations.
According to each concrete unit there are in the reinforcing bar unit of mapping relations, each reinforcing bar unit is located at corresponding concrete unit
Interior number of endpoint obtains the ratio of reinforcement of each concrete unit.
Specifically, for a certain concrete unit, the reinforcing bar unit is traversed, is set up according to above-mentioned
Mapping relations judge reinforcing bar cell terminals number of the reinforcing bar unit in the concrete unit, if reinforcing bar unit is located at
Number of endpoint in corresponding concrete unit is 1, then volume of the reinforcing bar unit in corresponding concrete unit on x, y, z direction
For the reinforcing bar unit actual volume 1/2 with reinforcing bar cell orientation vector x, y, z durection component product；If reinforcing bar unit
Number of endpoint in corresponding concrete unit is 2, then the body in reinforcing bar unit x, y, z direction in corresponding concrete unit
Product is the product of the reinforcing bar unit actual volume and reinforcing bar cell orientation vector in x, y, z durection component.When reinforcing bar unit time
After going through, after the volume in the concrete unit that adds up respectively on all reinforcing bar unit x, y, z directions divided by the concrete
Unit volume, obtained result of calculation is ratio of reinforcement ρ of the concrete unit on x, y, z directionx、ρy、ρz。
It should be noted that when executing traversal, if mapping relations are not present with concrete unit in reinforcing bar unit, steel
Volume of the muscle unit in the concrete unit is 0.
It should be noted that the reinforcing bar unit actual volume is reinforcing bar cell cross-section product and the line type cell
The product of length.
Further, each concrete unit in the concrete finite element model is begun stepping through, until getting
The ratio of reinforcement of all concrete units terminates the traversal to concrete unit.
Optionally a kind of traversal mode is according to the ascending sequence progress time of reinforcing bar unit number and concrete unit number
It goes through.
For example, concrete finite element model has M concrete unit, reinforcing bar finite element model to have N number of reinforcing bar unit, then
For first concrete unit, N number of reinforcing bar unit in reinforcing bar finite element model is begun stepping through.First, according to mapping relations
Judge reinforcing bar cell terminals number of first reinforcing bar unit in above-mentioned first concrete unit, obtains first reinforcing bar list
Corresponding reinforcing bar unit volume of the member in first concrete unit on x, y, z direction judges then according to mapping relations
Reinforcing bar cell terminals number of two reinforcing bar units in above-mentioned first concrete unit obtains second reinforcing bar unit the
Corresponding reinforcing bar unit volume in one concrete unit on x, y, z direction, and so on, N number of reinforcing bar unit is obtained
Corresponding reinforcing bar unit volume in one concrete unit on x, y, z direction.Then by N number of reinforcing bar in reinforcing bar finite element model
Corresponding reinforcing bar volume of the unit in first concrete unit on x, y, z direction is summed, then divided by first coagulation
The volume of native unit obtains the ratio of reinforcement of first concrete unit in the x, y, z-directions.
Further, for second concrete unit, N number of reinforcing bar list in all reinforcing bar finite element models is begun stepping through
Member obtains the ratio of reinforcement of second concrete unit in the x, y, z-directions by above-mentioned same method.And so on, traversal
M concrete unit in concrete finite element model obtains the ratio of reinforcement of M concrete unit in the x, y, z-directions.
It should be noted that can also be according to other sequences to reinforcing bar unit and concrete unit progress time in the present invention
It goes through, such as：It can be traversed according to the descending sequence of reinforcing bar unit number and concrete unit number, the present invention does not do this
Limitation.
The location information of above-mentioned location information according to the reinforcing bar unit, the concrete unit, obtains each concrete
The ratio of reinforcement of unit, another realization method, Ke Yiwei：
First, according to the shape function of the concrete unit, the location information of the concrete unit, to the concrete
Unit isoparametric conversion, and calculated using Newton iteration method, calculate the local coordinate of each reinforcing bar cell terminals；
Directly judged whether in the concrete unit according to the local coordinate of each reinforcing bar cell terminals, if reinforcing bar
It is 1 that unit, which is located at the number of endpoint in corresponding concrete unit, then reinforcing bar unit x, y, z direction in corresponding concrete unit
On volume be the reinforcing bar unit actual volume 1/2 with reinforcing bar cell orientation vector x, y, z durection component product；If
It is 2 that reinforcing bar unit, which is located at the number of endpoint in corresponding concrete unit, then reinforcing bar unit x, y, z in corresponding concrete unit
The volume in direction is the product of the reinforcing bar unit actual volume and reinforcing bar cell orientation vector in x, y, z durection component.
It should be noted that the method for calculating the local coordinate of each reinforcing bar cell terminals is identical as preceding method.
The present embodiment by obtain target construction concrete model and rebar model, using default solid geometry unit
The concrete model is divided, obtains concrete finite element model, the concrete finite element model includes M coagulation
Native unit, M are the integer more than 0, are divided to the rebar model using default line type cell, and reinforcing bar finite element mould is obtained
Type, the reinforcing bar finite element model include N number of reinforcing bar unit, and N is the integer more than 0, is believed according to the position of the reinforcing bar unit
The location information of breath, the concrete unit, obtains the ratio of reinforcement of each concrete unit.Built especially by acquisition target respectively
The concrete finite element model and reinforcing bar finite element model of object are built, and uses finite element isoparametric conversion shape function and Newton iteration method
Calculated, to obtain the ratio of reinforcement of concrete unit, realize can suitable for more complex engineerings concrete list
The calculating of first ratio of reinforcement, and the ratio of reinforcement of the concrete unit of the target construction obtained can be that follow-up armored concrete joins
Cooperation finite element method (fem) analysis provides data and supports.
Fig. 3 is the structural schematic diagram of the computing device embodiment one of the concrete unit ratio of reinforcement provided by the invention.This hair
The computing device of the concrete unit ratio of reinforcement of bright offer can be used for executing the technical solution of embodiment of the method shown in Fig. 1.Such as
Shown in Fig. 3, the computing device of the concrete unit ratio of reinforcement provided in this embodiment includes：
Acquisition module 31, concrete model and rebar model for obtaining target construction.
First mesh generation module 32, for being divided to the concrete model using default solid geometry unit,
Concrete finite element model is obtained, the concrete finite element model includes M concrete unit, and M is the integer more than 0.
Second mesh generation module 33 obtains steel for being divided to the rebar model using default line type cell
Muscle finite element model, the reinforcing bar finite element model include N number of reinforcing bar unit, and N is the integer more than 0.
Computing module 34 is obtained for the location information according to the location information of the reinforcing bar unit, the concrete unit
Take the ratio of reinforcement of each concrete unit.
Device provided in this embodiment, i.e., especially by the concrete finite element model and steel for obtaining target construction respectively
Muscle finite element model, and calculated using finite element isoparametric conversion shape function and Newton iteration method, to obtain concrete list
Member the ratio of reinforcement, realize can suitable for more complex engineerings the concrete unit ratio of reinforcement calculating, and acquisition
The ratio of reinforcement of the concrete unit of target construction can provide for follow-up armored concrete synergy finite element method (fem) analysis
Data are supported.
In one embodiment of the invention, the computing module 34 is additionally operable in the position according to the reinforcing bar unit
The location information of information, the concrete unit, before the ratio of reinforcement for obtaining each concrete unit, according to the concrete unit
Shape function, the location information of the reinforcing bar unit, the concrete unit location information, establish the reinforcing bar unit and institute
State the mapping relations of concrete unit.
Specifically, computing module 34 are specifically used for according to the shape function of the concrete unit, the concrete unit
Location information is calculated to the concrete unit isoparametric conversion, and using Newton iteration method, calculates each reinforcing bar cell terminals
Local coordinate；
By the concrete unit where the local coordinate of the reinforcing bar cell terminals, establishes mapping with the reinforcing bar unit and close
System.
Further, computing module 34 are specifically used for being closed according to the mapping of the reinforcing bar unit and the concrete unit
System, traverses reinforcing bar unit of each concrete unit there are mapping relations；
According to each concrete unit there are in the reinforcing bar unit of mapping relations, each reinforcing bar unit is located at corresponding concrete unit
Interior number of endpoint obtains the ratio of reinforcement of each concrete unit.
Further, computing module 34, specifically for calculating each concrete unit, there are the reinforcing bar units of mapping relations to exist
Volume in corresponding concrete unit, wherein described if it is 1 that reinforcing bar unit, which is located at the number of endpoint in corresponding concrete unit,
Volume of the reinforcing bar unit in corresponding concrete unit is the 1/2 of the reinforcing bar unit actual volume；If reinforcing bar unit be located at pair
It is 2 to answer the number of endpoint in concrete unit, then volume of the reinforcing bar unit in corresponding concrete unit is the reinforcing bar list
First actual volume；
Volume according to each concrete unit there are the reinforcing bar unit of mapping relations in corresponding concrete unit, obtains institute
State the ratio of reinforcement of each concrete unit.
Fig. 4 is the structural schematic diagram of the computing device embodiment two of the concrete unit ratio of reinforcement provided by the invention.The dress
It sets and may include：Memory 401 and processor 402.
Memory 401 can be independent physical unit, can be connect by bus with processor 402.Memory 401,
Processor 402 can also integrate, and pass through hardware realization etc..
Memory 401 realizes above method embodiment for storing, and processor 402 calls the program, executes apparatus above
The operation of the embodiment of the method for execution.
Optionally, when passing through software realization some or all of in the method for above-described embodiment, above-mentioned apparatus can also
Only include processor.Memory for storing program is located at except above-mentioned apparatus, and processor passes through circuit/electric wire and memory
Connection, for reading and executing the program stored in memory.
Processor can be central processing unit (Central Processing Unit, CPU), network processing unit
The combination of (Network Processor, NP) or CPU and NP.
Processor can further include hardware chip.Above-mentioned hardware chip can be application-specific integrated circuit
(application-specific integrated circuit, ASIC), programmable logic device (programmable
Logic device, PLD) or combinations thereof.Above-mentioned PLD can be Complex Programmable Logic Devices (complex
Programmable logic device, CPLD), field programmable gate array (field-programmable gate
Array, FPGA), Universal Array Logic (generic array logic, GAL) or its arbitrary combination.
Memory may include volatile memory (volatile memory), such as random access memory
(random-access memory, RAM)；Memory can also include nonvolatile memory (non-volatile
), such as flash memory (flash memory), hard disk (hard disk drive, HDD) or solid state disk memory
(solid-state drive, SSD)；Memory can also include the combination of the memory of mentioned kind.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer read/write memory medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned includes：ROM, RAM, magnetic disc or
The various media that can store program code such as person's CD.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of computational methods of the concrete unit ratio of reinforcement, which is characterized in that including：
Obtain the concrete model and rebar model of target construction；
The concrete model is divided using default solid geometry unit, obtains concrete finite element model, it is described mixed
Solidifying soil finite element model includes M concrete unit, and M is the integer more than 0；
The rebar model is divided using default line type cell, obtains reinforcing bar finite element model, the reinforcing bar finite element
Model includes N number of reinforcing bar unit, and N is the integer more than 0；
According to the location information of the reinforcing bar unit, the location information of the concrete unit, matching for each concrete unit is obtained
Muscle rate.
2. according to the method described in claim 1, it is characterized in that, the location information according to the reinforcing bar unit, described
The location information of concrete unit before the ratio of reinforcement for obtaining each concrete unit, further includes：
Believed according to the position of the shape function of the concrete unit, the location information of the reinforcing bar unit, the concrete unit
Breath, establishes the mapping relations of the reinforcing bar unit and the concrete unit.
3. according to the method described in claim 2, it is characterized in that, the shape function according to the concrete unit, described
The location information of the location information of reinforcing bar unit, the concrete unit establishes the reinforcing bar unit and the concrete unit
Mapping relations, including：
According to the shape function of the concrete unit, the location information of the concrete unit, to ginsengs such as the concrete units
Transformation, and calculated using Newton iteration method, calculate the local coordinate of each reinforcing bar cell terminals；
By the concrete unit where the local coordinate of the reinforcing bar cell terminals, mapping relations are established with the reinforcing bar unit.
4. according to the method described in claim 3, it is characterized in that, the location information according to the reinforcing bar unit, described
The location information of concrete unit obtains the ratio of reinforcement of each concrete unit, including：
According to the mapping relations of the reinforcing bar unit and the concrete unit, traversing each concrete unit, there are mapping relations
Reinforcing bar unit；
According to each concrete unit there are in the reinforcing bar unit of mapping relations, each reinforcing bar unit is located in corresponding concrete unit
Number of endpoint obtains the ratio of reinforcement of each concrete unit.
5. according to the method described in claim 4, it is characterized in that, described according to each concrete unit, there are the steel of mapping relations
In muscle unit, each reinforcing bar unit is located at the number of endpoint in corresponding concrete unit, obtains the ratio of reinforcement of each concrete unit, wraps
It includes：
Calculate volume of each concrete unit there are the reinforcing bar unit of mapping relations in corresponding concrete unit, wherein if steel
It is 1 that muscle unit, which is located at the number of endpoint in corresponding concrete unit, then volume of the reinforcing bar unit in corresponding concrete unit
It is the 1/2 of the reinforcing bar unit actual volume；If it is 2 that reinforcing bar unit, which is located at the number of endpoint in corresponding concrete unit, described
Volume of the reinforcing bar unit in corresponding concrete unit is the reinforcing bar unit actual volume；
Volume according to each concrete unit there are the reinforcing bar unit of mapping relations in corresponding concrete unit obtains described each
The ratio of reinforcement of concrete unit.
6. a kind of computing device of the concrete unit ratio of reinforcement, which is characterized in that including：
Acquisition module, concrete model and rebar model for obtaining target construction；
First mesh generation module is obtained mixed for being divided to the concrete model using default solid geometry unit
Solidifying soil finite element model, the concrete finite element model include M concrete unit, and M is the integer more than 0；
It is limited to obtain reinforcing bar for being divided to the rebar model using default line type cell for second mesh generation module
Meta-model, the reinforcing bar finite element model include N number of reinforcing bar unit, and N is the integer more than 0；
Computing module obtains each mixed for the location information according to the location information of the reinforcing bar unit, the concrete unit
The ratio of reinforcement of solidifying soil unit.
7. device according to claim 6, which is characterized in that the computing module is additionally operable to according to the reinforcing bar list
The location information of member, the location information of the concrete unit, before the ratio of reinforcement for obtaining each concrete unit, according to described mixed
The location information of the solidifying soil shape function of unit, the location information of the reinforcing bar unit, the concrete unit, establishes the reinforcing bar
The mapping relations of unit and the concrete unit.
8. device according to claim 7, which is characterized in that the computing module is specifically used for according to the concrete
The location information of the shape function of unit, the concrete unit to the concrete unit isoparametric conversion, and uses Newton iteration
Method calculates, and calculates the local coordinate of each reinforcing bar cell terminals；
By the concrete unit where the local coordinate of the reinforcing bar cell terminals, mapping relations are established with the reinforcing bar unit.
9. device according to claim 8, which is characterized in that the computing module is specifically used for according to the reinforcing bar list
First mapping relations with the concrete unit traverse reinforcing bar unit of each concrete unit there are mapping relations；According to each mixed
For solidifying soil unit there are in the reinforcing bar unit of mapping relations, each reinforcing bar unit is located at the number of endpoint in corresponding concrete unit, obtains
The ratio of reinforcement of each concrete unit.
10. device according to claim 9, which is characterized in that the computing module is specifically used for calculating each concrete list
Volume of the member there are the reinforcing bar unit of mapping relations in corresponding concrete unit, wherein if reinforcing bar unit is located at corresponding coagulation
Number of endpoint in native unit is 1, then volume of the reinforcing bar unit in corresponding concrete unit is that the reinforcing bar unit is practical
The 1/2 of volume；If it is 2 that reinforcing bar unit, which is located at the number of endpoint in corresponding concrete unit, the reinforcing bar unit is in corresponding coagulation
Volume in native unit is the reinforcing bar unit actual volume；According to each concrete unit, there are the reinforcing bar units of mapping relations to exist
Volume in corresponding concrete unit, obtains the ratio of reinforcement of each concrete unit.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537796A (en) * | 2018-11-30 | 2019-03-29 | 陕西国防工业职业技术学院 | A kind of armoured concrete slab ratio of reinforcement calculation method based on Strength Reduction Method |
| CN109558629A (en) * | 2018-10-18 | 2019-04-02 | 国核电力规划设计研究院有限公司 | The generation method and device of steel bar arrangement scheme |
| CN111444655A (en) * | 2020-04-08 | 2020-07-24 | 中国水利水电科学研究院 | Static and dynamic reinforcement method for hydraulic building structure |
| CN111677283A (en) * | 2020-07-30 | 2020-09-18 | 湖南中天建设集团股份有限公司 | Method for assembling concrete structure |
| CN112883621A (en) * | 2021-03-10 | 2021-06-01 | 陕西华山建设集团有限公司 | Method for acquiring positions of steel bar joints in irregular plate column shear wall under finite element analysis |
| CN113821860A (en) * | 2021-09-30 | 2021-12-21 | 广联达科技股份有限公司 | Method, device and equipment for determining breakpoint on steel bar primitive and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286916A (en) * | 2011-07-13 | 2011-12-21 | 东南大学 | Method for determining time varying reliability of prestressed concrete box girder bridge |
| CN102651041A (en) * | 2011-12-28 | 2012-08-29 | 上海同吉建筑工程设计有限公司 | Prestressed cable foundation design method for large-span space structure |
| US20170131259A1 (en) * | 2015-11-09 | 2017-05-11 | University Of Dammam | Concrete reinforcement assembly, method of installation, and method to determine cyclic load response |
| CN206440719U (en) * | 2017-01-25 | 2017-08-25 | 厦门理工学院 | The measuring system of Non-load Concrete internal stress in concrete structure |
-
2018
- 2018-03-26 CN CN201810252692.7A patent/CN108614913B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286916A (en) * | 2011-07-13 | 2011-12-21 | 东南大学 | Method for determining time varying reliability of prestressed concrete box girder bridge |
| CN102651041A (en) * | 2011-12-28 | 2012-08-29 | 上海同吉建筑工程设计有限公司 | Prestressed cable foundation design method for large-span space structure |
| US20170131259A1 (en) * | 2015-11-09 | 2017-05-11 | University Of Dammam | Concrete reinforcement assembly, method of installation, and method to determine cyclic load response |
| CN206440719U (en) * | 2017-01-25 | 2017-08-25 | 厦门理工学院 | The measuring system of Non-load Concrete internal stress in concrete structure |
Non-Patent Citations (1)
| Title |
|---|
| 郭靳时 等: "低配筋混凝土剪力墙的数值模拟", 《低温建筑技术》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109558629A (en) * | 2018-10-18 | 2019-04-02 | 国核电力规划设计研究院有限公司 | The generation method and device of steel bar arrangement scheme |
| CN109558629B (en) * | 2018-10-18 | 2023-05-26 | 国核电力规划设计研究院有限公司 | Method and device for generating reinforcement arrangement scheme |
| CN109537796A (en) * | 2018-11-30 | 2019-03-29 | 陕西国防工业职业技术学院 | A kind of armoured concrete slab ratio of reinforcement calculation method based on Strength Reduction Method |
| CN111444655A (en) * | 2020-04-08 | 2020-07-24 | 中国水利水电科学研究院 | Static and dynamic reinforcement method for hydraulic building structure |
| CN111677283A (en) * | 2020-07-30 | 2020-09-18 | 湖南中天建设集团股份有限公司 | Method for assembling concrete structure |
| CN112883621A (en) * | 2021-03-10 | 2021-06-01 | 陕西华山建设集团有限公司 | Method for acquiring positions of steel bar joints in irregular plate column shear wall under finite element analysis |
| CN113821860A (en) * | 2021-09-30 | 2021-12-21 | 广联达科技股份有限公司 | Method, device and equipment for determining breakpoint on steel bar primitive and storage medium |
| CN113821860B (en) * | 2021-09-30 | 2024-04-12 | 广联达科技股份有限公司 | Method, device, equipment and storage medium for determining break point on steel bar graphic element |
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