CN108846152B - BIM-based shear wall structure hoisting stage site optimization arrangement method - Google Patents
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Abstract
The invention discloses a field optimization arrangement method for a hoisting stage of an assembled shear wall structure based on BIM, which comprises the following steps: step one, dynamically dividing a construction process; step two, determining technical indexes; step three, extracting technical indexes based on the BIM model; step four, establishing an evaluation matrix of the scheme parameter sequence; step five, determining a technical index to be optimized; step six, scheme adjustment and improvement; step seven, determining a site layout dynamic optimal scheme; the visual modeling method greatly improves the visibility, the accuracy and the efficiency of the arrangement of the assembly type building construction site, the whole evaluation optimization process is based on the parameterized BIM model, the technical indexes of the scheme evaluation are quantitatively counted, and the programmed data information analysis method is more accurate and reliable.
Description
Technical Field
The invention relates to the field of construction site optimization arrangement methods. More specifically, the invention relates to a field optimization arrangement method for a hoisting stage of an assembled shear wall structure based on BIM.
Background
With the great popularization of industrial production of the fabricated concrete building in China, compared with the traditional cast-in-place structure, the fabricated concrete building is mainly hoisted by prefabricated parts, and the hoisting process is high in precision and close in relevance. The construction site is used as a center for centralized allocation of material resources in the construction process, and systematic and efficient management of tower cranes, traffic roads and yards determines the construction quality and the construction efficiency of the fabricated building. The traditional two-dimensional mode site layout is usually planned based on drawings, qualitative judgment is made by means of construction experience, data resources are scattered relatively, certain quantitative indexes are lacked in evaluation, the site layout is not scientific enough, and the lack of comprehensive and integrated construction site data information is the main reason.
Disclosure of Invention
The invention provides a field optimization arrangement method for a hoisting stage of an assembled shear wall structure based on BIM, which can scientifically integrate data resources based on BIM and then standardizedly optimize a construction field;
in order to achieve the purpose, the invention provides a field optimization arrangement method for an assembled shear wall structure in a hoisting stage based on BIM, which comprises the following steps:
step one, dynamically dividing a construction process;
step two, determining technical indexes;
thirdly, performing statistical analysis on technical indexes based on the BIM model;
step four, establishing an evaluation matrix of the scheme parameter sequence;
step five, determining a technical index to be optimized;
step six, scheme adjustment and improvement;
and seventhly, determining a site layout dynamic optimal scheme.
Preferably, the field optimization arrangement method for the hoisting stage of the fabricated shear wall structure based on the BIM comprises the following steps of: the construction process of the fabricated shear wall structure is divided into a plurality of project sub-projects.
Preferably, the method for optimally arranging the sites in the hoisting stage of the assembled shear wall structure based on the BIM comprises the following steps of: the technical indexes for determining the construction site arrangement of the fabricated shear wall structure comprise safety, site utilization rate, cost, hoisting efficiency, secondary transfer times and space conflict.
Preferably, the field optimization arrangement method in the hoisting stage of the assembled shear wall structure based on the BIM includes the third step of statistical analysis of technical indexes based on the BIM model, and specifically includes: on the basis of the BIM model, a data extraction module and an index statistical module are established by adopting an application program interface, wherein the data extraction module extracts the basic information of site arrangement in the BIM model in stages and determines a room connection topological graph of the position relation among the project amount list, the transportation road and the temporary facility of each component and equipment according to the extracted site arrangement basic information; the index statistical module calculates technical index values corresponding to different project projects according to the basic information extracted by the data extraction module.
Preferably, the site layout basic information comprises element ID, coordinate values and geometric dimension information of prefabricated parts, specification technical parameters, quantity and power of mechanical equipment and auxiliary equipment, ID, coordinates, geometric dimension information and material storage capacity of temporary facilities, floor area and floor space width of a site stacking area, and the number of people matched with various types of hoisting stages.
Preferably, the field optimization arrangement method in the hoisting stage of the fabricated shear wall structure based on the BIM includes the fourth step of establishing an evaluation matrix of a scheme parameter sequence, specifically: according to the technical index values of different project calculated by the index statistical module of the BIM model, a multi-scheme technical index evaluation matrix of each project is established, and the association degree of the sequence index of each scheme and the reference sequence is calculated.
Preferably, the field optimization arrangement method in the hoisting stage of the assembled shear wall structure based on the BIM comprises the fifth step of determining technical indexes to be optimized, specifically, according to the sequence of the correlation degrees, primarily determining the optimal scheme sequence of each project respectively, and determining the technical indexes of the field arrangement scheme to be optimized and adjusted.
Preferably, the field optimization arrangement method in the hoisting stage of the assembled shear wall structure based on the BIM comprises the following steps of: and establishing a scheme optimization module of the BIM based on the application program interface, wherein the scheme optimization module carries out scheme pertinently parameterized and oriented adjustment on corresponding technical indexes in the scheme with smaller association degree between the sequence indexes and the reference sequence according to the constraint conditions.
Preferably, the site optimization arrangement method for the hoisting stage of the BIM-based fabricated shear wall structure includes that the constraint conditions include safety requirements of construction site boundaries, facilities and storage yards and road traffic volume.
Preferably, the field optimal arrangement method in the hoisting stage of the assembled shear wall structure based on the BIM includes the seventh step of determining a field arrangement dynamic optimal scheme, specifically: after each scheme in each project is optimized and adjusted by a scheme optimization module, determining whether the relative value of the technical index of the evaluation matrix of each project is converged in a specified range, if so, determining the project as the optimal scheme of the project, otherwise, re-entering the third step, the fourth step, the fifth step and the sixth step to perform iterative calculation until the relative value of the technical index of the evaluation matrix is converged in the specified range, and determining the project as the optimal scheme of each project;
and combining the optimal schemes until the optimal schemes of all the project sub-projects are obtained to form the optimal combination of the construction site layout schemes.
The invention at least comprises the following beneficial effects: 1. the BIM virtual construction technology for the assembly type building construction site arrangement is combined with a construction progress schedule to finely arrange ground tower cranes, storage yards and roads, and parameterized modeling is carried out by calling family resources of an assembly type component family library, so that the construction site arrangement is greatly improved in visibility, accuracy and efficiency; 2. the method is more accurate and reliable, and provides beneficial reference for further optimization of construction site arrangement.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic flow chart of a site optimization arrangement method in a hoisting stage of a fabricated shear wall structure based on BIM according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
As shown in fig. 1, the invention provides a site optimization arrangement method for a hoisting stage of an assembled shear wall structure based on BIM, which comprises the following steps: data extraction of technical indexes of scheme evaluation and mathematical computation model establishment of statistical analysis; a BIM parameterized model establishing method based on construction site dynamic arrangement of a standard layer hoisting schedule;
the embodiment takes an assembled shear wall concrete structure as an example, and illustrates an optimized arrangement method for an assembled concrete building construction site, which mainly comprises the following steps:
1) and dynamic division of the construction process: the arrangement of a construction site is usually continuously adjusted along with the promotion of projects, and according to the characteristics of hoisting construction of the assembled shear wall structure, the hoisting construction process of the assembled shear wall structure standard layer is divided into a plurality of sub-projects, wherein the sub-projects can be prefabricated shear walls, prefabricated beams, prefabricated laminated slabs, prefabricated stairs and balcony slabs, steel bar binding and template projects;
2) and determining the technical index: the technical indexes of the construction site arrangement of the fabricated shear wall structure mainly consider safety, site utilization rate, cost, hoisting efficiency, secondary transfer times and space conflict indexes, the safety is taken as a qualitative index, and the indexes are comprehensively evaluated and given according to reasonability and standardability according to site labor protection, fire protection, pipeline burying, safety technical indexes and the like; the utilization degree of land in a construction site arrangement scheme is inspected by using the construction site utilization coefficient, the ratio of the floor area of construction facilities to the floor area of construction is calculated through site information statistics of a construction site BIM model; considering personnel allocation, material transportation, mechanical equipment arrangement, secondary transportation cost and the like, and calculating the association between the engineering quantity and the construction cost quota data in the field BIM model by adopting an application program interface to obtain the cost; the hoisting efficiency takes the hoisting time and the hoisting distance into consideration, and is obtained by statistical analysis of a time schedule, tower crane technical parameters, the initial position of components (prefabricated components, required materials and auxiliary supporting equipment) and the height of a floor; the secondary transfer times consider the secondary transportation of materials and equipment outside the working radius of the tower crane; and the space conflict considers the space position collision conflict and the space safety conflict detection among the tower crane, the mobile vehicle and the equipment on site.
3) And extracting technical indexes based on the BIM model: on the basis of the BIM model, an application program interface is adopted to establish a data extraction module and an index statistical module, wherein the data extraction module extracts site arrangement basic information (including element ID, coordinate values, geometric parameters and the like) in the BIM model in stages, and determines a room connection topological graph of a project quantity list of each component and equipment, a position relation between a transport road and a temporary facility according to the extracted site arrangement basic information; the index statistical module calculates technical index values corresponding to different project projects according to the basic information extracted by the data extraction module.
4) Establishing an evaluation matrix of a scheme parameter sequence: according to the technical index value calculated by the index statistical module of the BIM model, a multi-scheme technical index evaluation matrix of each project is established, and the association degree of the sequence index of each scheme and the reference sequence is calculated;
a BIM model is arranged in a construction site to serve as a shared data resource, all parties dynamically read data information of the model according to requirements, and correlation degree analysis is needed on the basis of different scheme index parameters of all stages obtained by the BIM model.
The grey correlation analysis is a method for carrying out multi-factor statistical analysis on each subsystem, and the strength of the relationship between each subsystem (or factor) in the system is described by using the grey correlation degree according to the sample data of each factor. The relevance between the sample data and the two factors is larger if the trends of the two factors reflected by the sample data are basically consistent; otherwise, the degree of association is small.
a) Determining an original evaluation matrix and a reference sequence
Suppose that an original evaluation matrix, x, is formed by m objects and n indexesijThe index values of the ith object and the jth index are represented, and the original evaluation matrix is as follows:
X=(xi1 xi2 … xij … xin),(1≤i≤m,1≤j≤n) (1)
determining the reference number column as the original sample data,
X0=(x01,x02,…,x0j,…,x0n) (2)
b) data dimensionless processing
Z=(zi1 zi2 … zij … zin),(0≤i≤m,1≤j≤n) (3)
Wherein, the reference number sequence of the standardization treatment is,
Z0=(z01,z02,…,z0j,…,z0n) (4)
c) find the range of data
Δ(ij)=|Zi-Z0|=|zij-z0j|,i=1,2,…,m,j=1,2,…,n (5)
d) Calculating the correlation coefficient
Where eta is the resolution coefficient, 0<η<1.0, the smaller the eta value is, the larger the difference between the correlation coefficients is, and the stronger the resolving power is. 0<ξij<1.0, representing the ith comparison sequence XiWith reference sequence X0The degree of association at the jth index.
e) Calculating the degree of association
And respectively calculating the association degree of the parameter indexes corresponding to each comparison sequence and the reference sequence, and comprehensively considering the weight of each parameter index. From the information perspective, the entropy weight theory is adopted, the method determines the weight according to the information quantity transmitted by each index to a decision maker, the method is an objective and comprehensive weighting method, and the weight of each index can be set according to specific conditions. The degree of association is noted as,
P=(p01,p02,…,p0i,…,p0m)T,i=1,2,…,m (9)
wherein, the weight of each index is recorded as,
W=(w1,w2,…,wi,…,wn)T,j=1,2,…,n (11)
f) comprehensive evaluation
And sequencing according to the relevance of each comparison sequence, wherein the greater the relevance, the more similar the comparison sequence and the reference sequence is, the better the evaluation result is, and the worse the evaluation result is.
5) Determining and optimizing technical indexes: according to the sequence of the relevance, primarily determining the optimal scheme sequence of each project, and determining the technical index of the site arrangement scheme to be optimized and adjusted;
6) scheme adjustment and improvement: the method comprises the steps that a scheme optimization module of a BIM model is established based on an application program interface, the module considers the constraint conditions of construction site boundaries, safety requirements of facilities and storage yards, traffic and the like, carries out parameterized local directional adjustment on the BIM model according to the established scheme optimization module for a scheme index with a small incidence matrix element value;
7) determining a site layout dynamic optimal scheme: after each scheme in each project is optimized and adjusted by the scheme optimization module, whether the relative value of the technical index of the evaluation matrix of each scheme is converged in a specified range is determined, if yes, the scheme is determined to be the optimal scheme of the project, if not, the step three, the step four, the step five and the step six are re-entered for iterative calculation until the relative value of the technical index of the evaluation matrix is converged in the specified range, and the optimal scheme of each project is determined; and combining the optimal schemes until the optimal schemes of all the project sub-projects are obtained to form the optimal combination of the construction site layout schemes.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (5)
1. A field optimal arrangement method for a hoisting stage of an assembled shear wall structure based on BIM is characterized by comprising the following steps:
step one, dynamically dividing a construction process;
step two, determining technical indexes;
thirdly, performing statistical analysis on technical indexes based on the BIM model;
step four, establishing an evaluation matrix of the scheme parameter sequence;
step five, determining a technical index to be optimized;
step six, scheme adjustment and improvement;
step seven, determining a site layout dynamic optimal scheme;
and step three, carrying out statistical analysis on technical indexes based on the BIM model, specifically: on the basis of the BIM model, a data extraction module and an index statistical module are established by adopting an application program interface, wherein the data extraction module extracts the basic information of site arrangement in the BIM model in stages and determines a room connection topological graph of the position relation among the project amount list, the transportation road and the temporary facility of each component and equipment according to the extracted site arrangement basic information; the index statistical module calculates technical index values corresponding to different project projects according to the basic information extracted by the data extraction module;
step four, establishing an evaluation matrix of the scheme parameter sequence, specifically comprising the following steps: according to the technical index values of different project calculated by an index statistical module of the BIM model, establishing a multi-scheme technical index evaluation matrix of each project, and calculating the association degree of the sequence index of each scheme and a reference sequence;
fifthly, determining technical indexes to be optimized, specifically, primarily determining the optimal scheme sequence of each project according to the sequence of the association degrees, and determining the technical indexes of the site layout scheme to be optimized and adjusted;
step six, scheme adjustment and improvement, specifically comprising: the method comprises the steps that a scheme optimization module of a BIM (building information modeling) model is established based on an application program interface, and the scheme optimization module carries out scheme specific parameterized directional adjustment on corresponding technical indexes in a scheme with small sequence indexes and reference sequence relevance according to constraint conditions;
step seven, determining a site layout dynamic optimal scheme, specifically comprising the following steps: after each scheme in each project is optimized and adjusted by a scheme optimization module, determining whether the relative value of the technical index of the evaluation matrix of each project is converged in a specified range, if so, determining the project as the optimal scheme of the project, otherwise, re-entering the third step, the fourth step, the fifth step and the sixth step to perform iterative calculation until the relative value of the technical index of the evaluation matrix is converged in the specified range, and determining the project as the optimal scheme of each project;
and combining the optimal schemes until the optimal schemes of all the project sub-projects are obtained to form the optimal combination of the construction site layout schemes.
2. The BIM-based site optimization layout method for the assembly type shear wall structure in the hoisting stage is characterized in that the first step and the construction process are dynamically divided, and specifically the first step comprises the following steps: the construction process of the fabricated shear wall structure is divided into a plurality of project sub-projects.
3. The BIM-based site optimization layout method for the assembled shear wall structure in the hoisting stage is characterized in that the second step and the determination of technical indexes specifically comprise the following steps: the technical indexes for determining the construction site arrangement of the fabricated shear wall structure comprise safety, site utilization rate, cost, hoisting efficiency, secondary transfer times and space conflict.
4. The BIM-based site optimization layout method for the assembled shear wall structure in the hoisting stage of the assembled shear wall structure according to claim 1, wherein in the third step, the site layout basic information comprises element ID, coordinate values and geometric dimension information of prefabricated parts, specification technical parameters, quantity and power of mechanical equipment and auxiliary equipment, ID, coordinate values, geometric dimension information and material storage quantity of temporary facilities, floor area and floor space width of a site stacking area, and the number of people matched with each type of work in the hoisting stage.
5. The BIM-based site optimization arrangement method for the hoisting stage of the fabricated shear wall structure according to claim 1, wherein the constraint conditions comprise safety requirements of construction site boundaries, facilities and storage yards and road traffic volume.
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