JP2007177541A - Structure in-situ installation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steel structure in-situ installation system which is applicable to a steel structure and an affixed structure, accommodates construction errors occurring during installation work on the site, and is applicable to an in-situ installation procedure and a construction plan. <P>SOLUTION: The system for installing the structure on the construction site is formed of a three-dimensional CAD section 2 for designing the structure, a site geography data generating section 1, a site construction plan/completed part simulation section 3 for carrying out a simulation of a construction procedure of the structure on the site, and a specified dimension tolerance adjusting section 4 for changing a specified dimension and/or a tolerance of each component member constituting the structure. According to the system, the specified dimension and/or tolerance of the component member is changed based on a result of the simulation. The site construction plan/completed part simulation section 3 inputs a designing standard of the structure from the three-dimensional CAD section, and determines whether or not the result of the simulation satisfies the designing standard. If the result satisfies the designing standard, the component members are installed on the construction site, whereas if the result does not satisfy the designing standard, a simulation is carried out for determining whether design of the component members should be changed or auxiliary members can accommodate an error. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a structure local installation system, and in particular, according to the local installation process of a steel structure or the like, the resulting shape is measured with high accuracy by a digital camera or the like, and the dimensions are compared with design data by a three-dimensional CAD. It relates to a local installation system for structures that reduces on-site alignment and finishing work by reflecting the actual installation at the site.

Conventionally, the main girder, cross girder, anti-tilt structure, auxiliary plate, and lower horizontal groove member of the steel bridge are manufactured in advance at the factory, and each member is temporarily assembled at the factory yard prior to carrying in the temporary site. Inspect and confirm dimensions. However, a lot of man-hours and personnel are required for the temporary assembly work.
Therefore, in the “steel member production method” disclosed in Patent Document 1, provisional assembly work is executed by computer simulation. Specifically, the position of each part necessary for obtaining an appropriate assembly shape and the adjustment amount for shape correction processing are obtained. After the computer simulation, the factory drills each part according to the calculated machining information.
Japanese Patent Laid-Open No. 10-77609 (FIG. 3, paragraph 0006)

  However, in patent document 1, the application range is only a bridge body, and cannot be applied to an attached structure. Also, it cannot cope with construction errors at the time of local installation. Also, it cannot be used for local installation procedures or construction plans.

  Therefore, the problem of the present invention is applicable to a steel structure and an attached structure, provides a structure on-site installation system that can cope with construction errors at the time of on-site installation, and can be used for on-site installation procedures and construction plans. It is to be.

  The first means for solving the above-mentioned problems is a system for installing a structure on the site, a three-dimensional CAD unit for designing the structure, a local terrain data generating unit, and a construction for completing the structure on site. It is equipped with a local construction plan / work shape simulation section for simulating the procedure and a specified dimension tolerance adjustment section for changing the specified dimensions and / or tolerances of the members constituting the structure. Based on the simulation results, the specified dimensions of the members are provided. And / or change tolerances.

  In the second means, in the first means, the local landform data is GPS-based electronic country land map data or ground surface data of the structure.

  In the third means, in the first means, the on-site construction plan / finished shape simulation unit determines whether the simulation result satisfies the design value of the member, and when the design standard is satisfied, the member is installed on the site, If the design standard is not satisfied, the member design is changed.

  In the fourth means, in the first means, the three-dimensional CAD unit stores three-dimensional CAD data representing a completed state of the structure.

  In the fifth means, in the first means, a construction procedure determination unit is further provided, and when the local construction plan / finished simulation unit determines that the simulation result satisfies the design standard, the construction procedure determination unit performs the simulation. The procedure is the actual construction procedure.

  According to a sixth means, the first means further comprises a material / equipment database for storing at least the type and number of heavy machinery and the type and number of scaffolding.

  According to a seventh means, the first means further comprises an ability database for storing at least construction speed for each type of work.

  According to an eighth means, in the first means, a performance database is further provided for storing at least a performance speed record for each type of work.

  In the ninth means, in the first means, when the construction process includes two or more stages, a simulation is performed for each stage, and the simulation result of the previous stage is fed back to the simulation of the next stage.

  In the tenth means, the photograph and size of the actual finished shape of the structure at each stage are compared with the design criteria of the structure.

  In the eleventh means, in the first means, the actual dimension of the structure is represented by coordinate values of three-dimensional space coordinates.

  According to the first means, the construction simulation is performed based on the local terrain, and the necessary design change of the member is performed. Therefore, the actual number of man-hours required for the installation is reduced.

  According to the second means, accurate terrain can be obtained even in a large area of land.

  According to the third means, it is possible to determine whether or not it is necessary to change the design of the member only by simulation.

  According to the fourth means, the simulation result and the design result can be compared with each other in a three-dimensional display, and the pass / fail determination can be made by appropriately using the enlargement / reduction.

  According to the fifth means, if the simulation result is acceptable, the structure can be assembled by the procedure.

  According to the sixth means, virtual construction (simulation) can be quickly performed using the three-dimensional CAD data of the material or equipment and the structure.

  According to the seventh means, it is possible to make a construction plan using the capacity DB.

  According to the 8th means, construction management can be performed using performance DB.

  According to the ninth means, when the construction is completed through a plurality of stages, the structure can be carefully assembled by repeating the simulation and the design for each stage.

  According to the tenth means, the form of the structure can be easily confirmed by photographic analysis.

  According to the eleventh means, connection simulation of piping and the like can be performed easily and easily even when the floor of the building is different or the wall is obstructing.

  FIG. 1 is a block diagram of a structure on-site installation system. This system includes a local terrain data generation unit 1, a three-dimensional CAD unit 2, a local construction plan / work shape simulation unit 3, a specified dimension tolerance adjustment unit 4, a construction procedure determination unit 5, a material equipment database (DB) ) 6, ability DB 7, and performance DB 8.

  The structure is a three-dimensional structure such as a steel structure such as a steel bridge, a building, equipment, and piping. In particular, a construction error always occurs in a large-scale steel structure. On the other hand, since each member is manufactured with drawing dimensions (specified dimensions) including manufacturing tolerances (tolerances), installation work and finishing work are required on site to absorb installation errors. It is one of the factors that impede performance. In order to omit this on-site work, it is possible to check the accuracy of the installation in the construction phase of steel structures that are installed sequentially according to the procedure, and to reflect the installation error in the dimensions of the components that will be installed later. It is necessary to. This system is a system that measures the finished shape with high accuracy according to the installation process and reflects the dimensions in the post-installation structure.

  The local terrain data generation unit 1 uses the ground surface data of the structure, the survey result by transit, etc., the terrain measurement result by the digital camera, etc., such as the electronic national land map of the Geographical Survey Institute using GPS.

  The 3D CAD unit 2 calculates the dimensions (specified dimensions and tolerances), weight, center of gravity, hanging points, etc., for each member such as buildings, steel structures, equipment, piping, and accessories, and calculates the structure (main point coordinates). Material, strength, load condition, boundary condition), and the completed shape is converted into three-dimensional data.

  The local construction plan / work shape simulation unit 3 receives the terrain data from the local terrain data generation unit 1 and the design data from the three-dimensional CAD unit 2, and performs a simulation of the local work shape according to the installation process.

  The specified dimension tolerance adjusting unit 4 corrects the dimensions (specified dimensions and tolerances) of each member based on the local completed shape generated by the local construction plan / completed shape simulation unit 3.

  If the simulation result passes, the construction procedure determination unit 5 determines the actual construction procedure.

  The material / equipment database (DB) 6 stores data such as heavy machinery, temporary equipment, and scaffolding. Using this, virtual construction (simulation) at a virtual site (virtual site operated by a computer program) is performed.

  The capability DB 7 stores capability data such as work type and construction speed. Thereby, a construction plan such as a construction plan (construction procedure, materials / equipment to be used, temporary equipment plan), construction process table, personnel pile table, stage inspection plan (check sheet, inspection schedule), etc. is executed.

  The performance DB 8 stores the performance data of the type of work, the construction speed, and the completed data. As a result, work instructions (construction procedure, construction location, equipment used), process management (small schedule development, progress management, milestone management), personnel management (planned personnel management, results management, construction system management), delivery date management (component delivery) Management and temporary storage location management).

  According to this system, it is possible to adjust the initial specified dimensions and tolerances by simulating at once until the completion of the structure.

  Alternatively, if a local product (real product) at a certain construction stage is completed by using the local product (simulation) of this system, the actual product is reflected in the subsequent stages, reflecting the completed product. You may return it. Specifically, I try to actually make a local workmanship at a certain construction stage each time, take a photo, measure the dimensions, and make a pass / fail decision. Alternatively, an actual construction procedure may be determined by performing a simulation at a stroke until the construction is completed.

  In this way, feedback to the post-delivery product is performed, so that on-site adjustment can be made zero. The local finished product (actual) at each construction stage is measured (by a digital camera, a light wave measuring instrument, an analog measuring instrument, etc.), and the measured value is compared with a specified dimension by an inspection report, and a pass / fail judgment is performed.

  FIG. 2 is a flowchart showing the operation of the present system. First, in S20, each member of the structure is designed by the three-dimensional CAD unit 2, and the prescribed dimensions and tolerances of each member are determined.

  Next, in S21, the completed shape is converted into three-dimensional data. This is for visually comparing the design shape, the simulation shape, and the actually assembled shape visually.

  Next, in S22, a local work-form simulation is performed based on the design data and the local geographic data. This simulation may be one that simulates the completion of the structure at once, and in order to carefully check the design process, each construction stage is followed by the simulation, and the construction is passed at each construction stage. The actual construction may be repeated.

  Next, in S23, it is determined whether or not the simulation result satisfies the design specification. If the design specifications are not satisfied, the specified dimensions and tolerances are corrected, and the process returns to S20. On the other hand, if the design specifications are satisfied, the process proceeds to S24.

  Next, in S24, each member is disassembled in the reverse order of the construction simulation. The actual construction procedure is determined so that the disassembly order of each member is reversed. This is because such a construction procedure satisfies the design specifications.

  When the construction stage reaches a plurality of stages, S20 to S25 may be repeated for each stage. This helps to verify that the design is correct.

  As described above, the actual construction procedure is determined based on the simulation (virtual construction).

  FIG. 3 is a flowchart of processing for applying the present system to piping to equipment. FIG. 4 is an example of piping, and the flowchart of FIG. 3 will be described with reference to FIG.

  First, in S30, equipment that requires piping is installed on site, excluding the piping.

  Next, in S31, a pipe joint part is measured. In this case, the measurement is performed around the position of the coupling hole of the flange. For example, the positions of the four holes of the lower flange F1 in FIG. 4 are measured.

  Next, in S32, the tube center position coordinates are calculated. This is, for example, obtaining the center coordinates of the lower surface of the flange F1.

  Next, in S33, the distance between the pipe center positions (the distance between the lower surface of the lower flange F1 and the upper surface of the upper flange F2) is calculated. The lower surface of the lower flange F1 is vertically separated from the upper plane of the upper flange F2 by 5058 mm and is separated from the center of the upper flange F2 by 2573.9 mm horizontally to the left.

  Next, in S34, it is determined whether or not the length of the pipe needs to be adjusted. This is set by the presence or absence of a liner and an expansion joint. When adjustment is necessary, in S35, the length adjustment amount is calculated by comparing the data of the installed equipment with the distance between the pipe center positions.

  After confirming the length adjustment in S35, the inclination of the flange is checked in S40, and at the same time, the flange hole position is checked in S41. Subsequently, in S42, a simulation is performed as to whether or not the auxiliary member such as a joint can be connected. Subsequently, in S43, it is determined whether or not the flange angle / hole position adjustment is necessary. If adjustment is not necessary, neither pipe length adjustment nor flange angle / hole position adjustment is required, so the pipe is delivered to the site as it is, and the pipe is installed in S38.

  On the other hand, when adjustment is necessary in S43, the amount of adjustment is calculated in S44 by comparing the data of the installed equipment with the distance between the pipe center positions. Then, it progresses to S36 and a piping member adjustment amount is instruct | indicated to a factory. Subsequently, in S37, the piping members are adjusted and delivered to the site. Finally, in S37, the pipe is attached to the site.

  As described above, according to the present system, it is possible to respond promptly even if the equipment and the piping are not on-site. For this reason, connection points that are difficult to measure directly, such as the interior of equipment such as the second and third floors of a building, are measured with high accuracy. In addition, the measurement result is expanded to three-dimensional coordinates and easily compared with the design specified dimensions. Thereby, the finishing dimension of the piping product is determined from the comparison result with the specified dimension. As a result, the piping product is adjusted with the finishing dimensions before delivery to the site, thereby reducing on-site alignment work and shortening the construction process.

  According to the present invention, according to the field installation process such as steel structure, simulation of the finished shape is performed under local geographical conditions, the dimensions are compared with the design data by 3D CAD, and the field alignment and finishing work It can be used for a steel structure installation system that reduces

It is a block diagram of the structure local installation system of this invention. It is a flowchart explaining operation | movement of the structure local installation system of this invention. It is a flowchart explaining application of this invention to piping of an apparatus. It is an example of piping.

Explanation of symbols

1 Local terrain data generation part 2 3 o'clock original CAD part 3 Local construction plan / work shape simulation part 4 Specified dimension tolerance adjustment part 5 Construction procedure decision part 6 Material equipment DB
7 ability DB
8 results DB

Claims (11)

In a system for installing structures on site,
A three-dimensional CAD unit for designing the structure;
The local terrain data generation unit;
A local construction plan / work shape simulation section for simulating construction procedures to be completed on-site of the structure;
A specified dimension tolerance adjusting unit for changing a specified dimension and / or tolerance of members constituting the structure,
A structure on-site installation system characterized by changing a prescribed dimension and / or tolerance of the member based on the simulation result. In claim 1,
The structure local installation system, wherein the local landform data is electronic country land map data using GPS or the ground surface data of the structure. In claim 1,
The local construction plan / work shape simulation unit determines whether the simulation result satisfies the design value of the member,
When the design criteria are satisfied, the member is installed on site,
A structure on-site installation system, wherein the design of the member is changed when the design standard is not satisfied. In claim 1,
The three-dimensional CAD unit stores three-dimensional CAD data representing a completed state of the structure, and the structure field installation system. In claim 1,
In addition, a construction procedure determination unit is provided,
When the site construction plan / work shape simulation unit determines that the simulation result satisfies the design criteria,
The construction site determination system, wherein the construction procedure determination unit sets the simulation procedure as an actual construction procedure. In claim 1,
Furthermore, the structure field installation system characterized by including the material equipment database which memorize | stores at least the kind and number of heavy machinery, the kind and number of scaffolds. In claim 1,
Furthermore, the structure local installation system characterized by providing the capability database which memorize | stores the construction speed for every kind of work at least. In claim 1,
Furthermore, the structure local installation system characterized by providing the results database which memorize | stores the results of the construction speed for every kind of work at least. In claim 1,
When the construction process consists of two or more stages,
A structure on-site installation system, wherein the simulation is performed at each stage, and the simulation result of the previous stage is fed back to the simulation of the next stage. In claim 9,
A structure on-site installation system characterized in that a photograph and a size of an actual finished shape of the structure at each stage are compared with a design standard of the structure. In claim 10,
A structure installation system characterized in that the actual dimensions of the structure are represented by coordinate values of three-dimensional space coordinates.

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