Construction error management method, construction error management system and program

Abstract

To control the inclination of building columns more precisely.SOLUTION: In a construction error management method, a building is constructed and structural members including a plurality of columns are placed. The displacements of the plurality of columns included in the placed structural members is measured. The measured displacements are stored in a storage unit. An image element connecting positions corresponding to upper and lower portions of each of the plurality of columns is displayed based on the measured displacements stored in the storage unit.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a construction error management method, a construction error management system, and a program.

Background Art

[0002] When assembling structural members including columns in a building (referred to as "building construction"), the deviation of the columns from the vertical line is managed so as not to exceed a reference. Therefore, the amount of deviation of the upper end of the column from the vertical line is measured. Based on the measured amount of deviation, for example, the structural members are corrected and the state of the building is managed to meet the reference. Generally, the work of assembling structural members is performed for each floor. One or more measurements are performed on the upper end of the assembled floor. There is also a management system for managing the deviation, and such a management system displays whether the amount of deviation is within the allowable range in each measurement.

[0003] Patent Document 1 discloses measuring the collapse of a steel column using a three-axis acceleration sensor. Patent Document 2 discloses acquiring three-dimensional data of a building using laser light. Patent Document 3 discloses calculating and displaying the positional deviation and torsion of a steel frame based on design information indicating the building method of the steel frame and measured position information.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] By measuring and displaying the inclination index, it is easy to determine whether the deviation is within the allowable range. On the other hand, it was difficult to intuitively grasp the inclination of the column. Therefore, it was not easy to precisely manage the amount of deviation.

[0006] The present invention has been made in view of the above problems, and an object thereof is to provide a technique that enables more precise management of the inclination of a column.

Means for Solving the Problems

[0007] In order to solve the above problems, a construction error management method according to the present invention includes a step of arranging a structural member that constitutes a building and includes a plurality of columns, a step of measuring deviations of the plurality of columns included in the arranged structural member, a step of storing the measured deviations in a storage unit, and a step of displaying an image element that connects positions corresponding to upper and lower portions of each of the plurality of columns based on the measured deviations stored in the storage unit.

[0008] In order to solve the above problems, a construction error management system according to the present invention includes a structural member that constitutes a building and includes a plurality of columns, a deviation acquisition means for acquiring measured deviations of the plurality of columns included in the arranged structural member and storing them in a storage unit, and a display control means for displaying an image element that connects positions corresponding to upper and lower portions of each of the plurality of columns based on the measured deviations stored in the storage unit.

[0009] In order to solve the above problems, a program according to the present invention causes a computer to function as a deviation acquisition means for acquiring measured deviations of a plurality of columns included in a structural member that constitutes a building and storing them in a storage unit, and a display control means for displaying an image element that connects positions corresponding to upper and lower portions of each of the plurality of columns based on the measured deviations stored in the storage unit.

[0010] In one embodiment of the present invention, the building has a plurality of layers each including a structural member including a plurality of columns, and in the step of arranging, a structural member included in a layer above a layer already arranged among the plurality of layers may be arranged.

[0011] In one embodiment of the present invention, in the step of measuring, a displacement at the upper part of a plurality of columns arranged in the step of arranging is measured, and in the step of displaying, for each of the plurality of columns arranged in the step of arranging, an image element connecting a position indicated by the displacement at the upper part of the column and a position indicated by the displacement at the upper part of a plurality of columns connected to the lower part of the column may be displayed.

[0012] In one embodiment of the present invention, in the step of measuring, a displacement at the upper part of each of a plurality of columns arranged in the step of arranging is measured in a plurality of steps after the step of arranging, and in the step of displaying, for each combination of any one of the plurality of columns arranged in the step of arranging and any one of the plurality of steps, an image element connecting a position indicated by the displacement at the upper part of the column included in the combination measured in the step included in the combination and a position indicated by the displacement at the lower part of the column included in the combination may be displayed in the same coordinate system regardless of the step.

[0013] In one embodiment of the present invention, in the step of displaying, for each combination of any one of the plurality of columns arranged in the step of arranging and any one of the plurality of steps, an image element connecting a position indicated by the displacement at the upper part of the column included in the combination measured in the step included in the combination and a position indicated by the displacement at the upper part of a column connected to the lower part of the column included in the combination, which is the most recently measured displacement, may be displayed.

[0014] In one embodiment of the present invention, in the step of displaying, for each combination of any one of the plurality of columns arranged in the step of arranging and any one of the plurality of steps, an image element may be displayed in a display mode corresponding to the step.

[0015] In one aspect of the present invention, in the step of causing the display, for each of a plurality of columns, when the deviation measured and stored in the storage unit is greater than a predetermined threshold value, the display mode of the displayed image element may be changed.

Advantages of the Invention

[0016] According to the present invention, the inclination of columns of a building can be managed more precisely.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0018] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Duplicate descriptions for components with the same reference numerals will be omitted. Hereinafter, when using a steel frame as a structural member forming the skeleton of a building, a method and a system for ensuring the assembly accuracy of the steel frame will be described.

[0019] Figure 1 is a diagram that schematically illustrates an example of assembling structural members. The structural members that make up the framework of a building include multiple columns 32 and multiple beams 33. The framework of the building is also made up of multiple stories 30, each of which includes, as structural members, multiple columns 32 and multiple beams 33 located between the tops of the columns 32. Here, multiple floors, such as two floors, may be constructed on at least some of the stories.

[0020] A measuring device 2 is placed at the construction site where the building is being assembled. The measuring device 2 is a device that measures the positions of the tops of pillars 32, and may be, for example, a theodolite or a total station. When a total station is used as the measuring device 2, targets 37 are placed on the tops of multiple pillars 32 to indicate that they are the objects whose positions are to be measured, and the measuring device 2 acquires the positions of the targets 37. This measured position indicates any deviation when placing the structural members. When a theodolite is used as the measuring device 2, a tape measure may be attached to the pillars 32, and the position of the tops of the pillars 32 may be measured by reading the error from the correct position using the theodolite.

[0021] Fig. 2 is a diagram showing the steps of assembling a structural member. The steps shown in Fig. 2 are performed for a certain layer 30 or a certain block within a certain layer 30. The steps shown in Fig. 2 are repeated for each layer 30 or block.

[0022] In the first step S11, the structural members that make up the target story 30 or block are placed. The story 30 on which the structural members are placed in this step S11 is located above a story 30 on which structural members have already been placed, among the multiple stories 30. This step is called erection, and involves fixing the columns 32 together or the columns 32 and beams 33 by temporarily tightening bolts.

[0023] In the next step S12, the arrangement of the structural members is adjusted. More specifically, steps called span adjustment and re-plunging are performed. In span adjustment, the distance between the columns 32 connected by the beams 33 is adjusted to an appropriate length. In re-plunging, the structural members are adjusted so that the orientation of the columns becomes closer to vertical. Re-plunging may be performed by adjusting the length of the correction wires connecting the columns 32 to other columns 32, or by adjusting the re-plunging jig attached to the columns 32.

[0024] Once the placement of the structural members has been adjusted, in the next step S13, the positions of the multiple pillars 32 are measured to confirm the accuracy of the placement of the structural members. In this step S13, the management system uses the measuring device 2 to measure the positions of the multiple pillars 32, and displays an image that allows the misalignment of the pillars 32 indicated by the measured positions to be intuitively understood. Furthermore, based on the displayed content, it is determined whether it is OK to proceed to the next step S13. If it is determined that it is not OK to proceed to the next step (if "Accuracy NG" in step S13), the parts that need to be corrected are identified based on the displayed image, and step S12 is performed again. Details of step S13 will be described later. If it is determined that it is OK to proceed to the next step (if "Accuracy OK" in step S13), it proceeds to step S14.

[0025] FIG. 3 is a diagram for explaining the displacement of the position of the column 32. In FIG. 3, columns 321, 322, and 323, which are a plurality of columns 32, are arranged vertically, and each column 32 is joined to a beam 33. The vertical line 41 shown by a solid line in FIG. 3 is a line extending in the vertical direction from the base of the plurality of columns 32, that is, the position where the lowermost column 323 is fixed to the foundation. As shown in FIG. 3, the displacement of the column 32 to be managed (for example, column 321 in FIG. 3) is the distance e between the upper end of the column 32 (column 321) and the vertical line 41. When it is assumed that the vertical line 41 extends from the position where the base of the column 32 is located (for example, the left end in FIG. 3), the displacement is the distance e between the position corresponding to the base of the vertical line 41 (for example, the left end in FIG. 3) among the upper ends of the column 32 and the vertical line 41. When judged using the center line 42 of the column 32, assuming a vertical line 412 extending from the position where the center line 42 of the column 32 intersects the foundation, the displacement is the distance e2 between the point through which the center line 42 passes among the upper ends of the column 32 and the vertical line 421.

[0026] This displacement indicates the amount of inclination of the column 32. In the standards of the Architectural Institute of Japan, when the displacement is e and the height from the base to the upper end of the column 32 is H, it is required that e ≦ H / 700 and e ≦ 15 mm. In actual construction, it is managed so that the value of the displacement becomes even smaller.

[0027] In the next step S14 of step S13, the accuracy of the joint is confirmed. For example, in step S14, it is confirmed whether there are any problems in the subsequent steps for the columns 32, or the bolts and bolt holes for joining the columns 32 and the beams 33, and the portions to be welded. If there is a problem (in the case of "accuracy NG" in step S14), corrective measures, which are additional operations for improvement, are taken (step S19). When the state is improved by the corrective measures, the process proceeds to step S15. Although not shown in the figure, if there are significant accuracy problems in step S14 and large-scale corrective measures such as remanufacturing of members are taken, after the corrective measures, it may return to an earlier step.

[0028] When there is no problem with the joint (in the case of "accuracy OK" in step S14), the structural members are finally tightened with high-strength bolts in step S15. For example, the beam 33 and the column 32 may be joined by finally tightening high-strength bolts.

[0029] In step S16, the position of the column 32 is measured again, and the accuracy of the arrangement of the structural members is confirmed. Similar to step S13, the management system measures the position of the column 32 using the measuring device 2 and displays an image that can intuitively grasp the deviation of the column 32 indicated by that position. Also, depending on the displayed content, it is determined whether to proceed to the next step S17 or to correct the arrangement of the column 32. This image may be displayed immediately after measurement at the construction site or may be displayed at a later date at an office different from the site. Note that if it is determined that the construction accuracy is high and the probability of problems occurring is low, this step S16 may be omitted.

[0030] Also, in step S17, the joints of the structural members are welded. For example, the columns 32 may be joined by welding, or for the beam 33 and the column 32, in addition to final tightening with high-strength bolts, they may be further joined by welding.

[0031] When the bolts are finally tightened and welded, in step S18, the position of the column 32 is measured again, and the accuracy of the arrangement of the structural members is confirmed. Similar to steps S13 and S16, the management system measures the position of the column 32 using the measuring device 2 and displays an image that can intuitively grasp the deviation of the column 32 indicated by that position. If the deviation of the column 32 exceeds the allowable range, construction to correct the arrangement of the column 32 is carried out.

[0032] Each of steps S13, S16, and S18 is actually carried out using the management system. Below, the details of the processing of steps S13, S16, and S18 using this management system will be described.

[0033] FIG. 4 is a diagram showing an example of the hardware configuration of the management system. The management system includes an information processing apparatus 1 and a measurement apparatus 2. The information processing apparatus 1 is a computer including a processor 11, a storage unit 12, a communication unit 13, and an input / output unit 14. The processor 11 operates according to a program stored in the storage unit 12. Further, the processor 11 controls the communication unit 13 and the input / output unit 14. Note that the program may be provided via the Internet or the like, or may be provided by being stored in a computer-readable storage medium such as a flash memory or a DVD-ROM. The measurement apparatus 2 and the communication unit 13 of the information processing apparatus 1 may be connected by wireless communication such as Bluetooth (registered trademark), or they may not have a configuration for communication connection.

[0034] The storage unit 12 is composed of memory elements such as a RAM and a flash memory and an external storage device such as a hard disk drive. The storage unit 12 stores the program. Further, the storage unit 12 stores information and calculation results input from the processor 11, the communication unit 13, and the input / output unit 14.

[0035] The communication unit 13 realizes a function of communicating with other devices, and is composed of, for example, an integrated circuit that realizes a wireless LAN or a wired LAN. Based on the control of the processor 11, the communication unit 13 inputs information received from other devices to the processor 11 or the storage unit 12 and transmits information to other devices.

[0036] The input / output unit 14 is composed of, for example, a video controller that controls a display output device and a controller that acquires data from an input device. Examples of the input device include a keyboard, a mouse, and a touch panel. Based on the control of the processor 11, the input / output unit 14 outputs display data to the display output device and acquires data input by a user operating the input device. The display output device is, for example, a display device connected externally. The display output device may be built in the information processing apparatus 1.

[0037] Next, the functions provided by the management system will be described. FIG. 5 is a block diagram showing the functional configuration of the management system. Functionally, the management system includes a measurement result input unit 51, a display control unit 53, and a measurement result storage unit 61. The measurement result input unit 51 and the display control unit 53 are realized by executing a program stored in the storage unit 12 by a processor 11 included in the information processing apparatus 1 and reading and writing data with the storage unit 12. Further, the measurement result storage unit 61 is an area provided on the storage unit 12, and that area may exist in a flash memory or an external storage device. Also, a server computer that executes a database management system may operate as the measurement result storage unit 61. Further, a server computer that operates as the measurement result storage unit 61 may exist on so-called cloud.

[0038] The measurement result input unit 51 acquires the displacements of a plurality of columns 32 measured by the measuring device 2. The displacement of the column 32 may be acquired, for example, when the measurement result input unit 51 receives from the measuring device 2 the positions of the upper parts of a plurality of columns 32 measured by the measuring device 2 via the communication unit 13, or the measurement result input unit 51 may acquire the measured positions manually input together with information for identifying the column 32 with respect to an input device. The measurement itself is performed on the upper parts (near the upper ends) of a plurality of columns 32 included in the structural members arranged in step S11, and the displacement of the column 32 may be input for the measured locations.

[0039] The measurement result input unit 51 stores the acquired displacement in the measurement result storage unit 61. Further, the measurement result input unit 51 calculates how far the upper part of the column 32 is separated from the vertical line 41 extending from the base of the measured column 32 in the planar direction, thereby obtaining specific values of the displacement in each of the coordinate axes on the plane, and may store the calculated displacement in the measurement result storage unit 61 in association with the measured column 32 and the measured process.

[0040] The display control unit 53 causes an image element that connects positions corresponding to the upper and lower portions of each of the plurality of columns 32 to be displayed on the display output device based on the measured displacement of the column 32 and the displacement stored in the measurement result storage unit 61. The image element may be, for example, a line, and the case of drawing a line will be described below. The displayed image will be described later.

[0041] FIG. 6 is a flowchart showing an example of the processing of the management system. The functions of the management system will be described below based on this flowchart.

[0042] First, the measurement result input unit 51 acquires information indicating the amount of displacement of the plurality of measured columns (step S101). The information indicating the amount of displacement may be the position in the three-dimensional space of the upper part (target 37) of the column 32 measured by the measuring device 2. Also, it may be the angle and distance as seen from the measuring device 2 indicating the position in the three-dimensional space. Further, the information indicating the amount of displacement may be the displacement on the plane from the vertical line 41 and the vertical displacement represented by the coordinate values in the xyz directions obtained from the position in the three-dimensional space of the upper part (target 37) of the column 32. Also, the information indicating the amount of displacement may be the displacement on the plane from the vertical line 41 represented only by the coordinate values in the xy directions.

[0043] Next, the measurement result input unit 51 stores the acquired information indicating the amount of displacement in the measurement result storage unit 61 in association with the measured column 32 and the measured process (step S102). Here, the measurement result storage unit 61 also stores information indicating the displacement of the upper part of the column 32 measured and input in the past (past processes for the target layer 30 or block, or a plurality of processes for other layers 30, blocks).

[0044] When the information is stored in the measurement result storage unit 61, the display control unit 53 acquires the design information stored in the storage unit 12 and draws a line corresponding to the three-dimensional position in the design of each structural member (step S103). This line is for making the displacement of the column 32 easy to understand, and its display mode may be, for example, a dashed line.

[0045] The subsequent processing is intended to depict the deviation of the pillar 32 so that it can be intuitively grasped. More specifically, the display control unit 53 selects the pillar 32 to be processed from the unselected pillars 32 among the multiple pillars 32 (step S104). Then, the display control unit 53 acquires the deviation of the upper part of the selected pillar 32 from the measurement result storage unit 61 (step S105). If the measurement result storage unit 61 stores the deviation expressed in coordinate values, the display control unit 53 may acquire the coordinates as they are. If the measurement result storage unit 61 stores the position of the upper part of the pillar 32, the display control unit 53 may calculate the deviation expressed in coordinate values from that position and the position of the base of the pillar 32. Note that the processing of step S105 may be performed for all steps that have already been performed.

[0046] Next, the display control unit 53 acquires the displacement of the lower part of the selected pillar 32 from the measurement result storage unit 61 (step S106). More specifically, the displacement of the lower part of the selected pillar 32 is the displacement measured most recently (for example, in step S18) among the displacements of the upper parts of the pillars 32 connected to the lower part of the selected pillar 32. In cases where step S18 does not exist, the displacement measured most recently may be the displacement measured in step S16. In step S106, the displacement of the base of the pillar 32 based on the measurement results for the most recent step is acquired regardless of the step at which the processing shown in FIG. 6 starts. Note that when a pillar 32 belonging to the lowest story 30 is selected, the lower part of the pillar 32 is the reference, so the display control unit 53 acquires coordinate values of 0 in the x, y, and z directions as the displacement of the lower part.

[0047] The display control unit 53 draws a line indicating the selected pillar 32 based on the acquired upper and lower deviations (step S107). More specifically, for each measured process (one of processes S13, 16, and 18), the display control unit 53 displays a line connecting the position indicated by the upper deviation of the pillar 32 measured in that process with the position indicated by the lower deviation of the pillar 32 acquired in step S106 in a three-dimensional perspective view. The display control unit 53 also displays the line in a display mode (for example, line type and color) according to the process in which the upper deviation was measured. The display control unit 53 also determines whether the amount of deviation exceeds an allowable range (specifically, a threshold value), and if it exceeds the allowable range, further changes the display mode of the line.

[0048] Fig. 7 is a diagram showing an example of a displayed image. The image shown in Fig. 7 is displayed at step S13 of the second-lowest layer 30 after the bottom layer 30 has been completed up to step S18.

[0049] The very thin dashed lines representing the overlapping rectangular parallelepipeds in Fig. 7 are lines indicating the design positions drawn in step S103. Lines drawn in display modes such as thick solid lines, dashed lines, and dashed lines correspond to the columns 32 and beams 33 at the time of erection (step S13), at the time of final tightening of the high-strength bolts (step S16), and at the time of completion of welding (step S18), respectively. In the image shown in Fig. 7, the lines corresponding to the columns 32 and beams 33 are depicted so that their deviations are emphasized in order to make the deformation easier to understand.

[0050] Also, coordinates (x1, y1, z1 (common hereinafter)) shown in 1 to 3 steps near the points corresponding to the upper and lower ends of the column 32 (x1 and y1 are integers or real numbers) indicate the direction and magnitude of the deviation. x1 is the deviation amount in the x direction (mm), y1 is the deviation amount in the y direction (mm), and z1 is the deviation amount in the z direction (mm). For example, in the case of (+2, 0, 0), it indicates a deviation of 2 mm in the +x direction and 0 mm in the y and z directions. Also, when the coordinates are shown in multiple steps, they indicate the deviations at the time of building construction (process S13), when the high-strength bolts are fully tightened (process S16), and when welding is completed (process S18) in order from the top. Also, the warning line 81 shown by a very thick line among the lines corresponding to the column 32 indicates that the amount of the deviation exceeds the allowable range. There may be a limit tolerance defined by the Architectural Institute of Japan as the limit of building construction accuracy and a management tolerance with a narrower range than that, and the display mode of the line may change according to the type of the exceeded allowable range. Note that although the display mode of the line corresponding to the column 32 changes according to the process and the amount of the deviation, the display mode may also be changed by other methods such as color.

[0051] To emphasize the deviation, the three-dimensional position of the upper end of the column 32 may be obtained by adding a value obtained by multiplying the amount of deviation in each of the xyz directions by a predetermined constant (the constant exceeds 1) to the position in the xyz directions in the design. By displaying the column 32 three-dimensionally, the inclination of the column 32 can be grasped more easily. Note that the three-dimensional position of the upper end of the column 32 may be obtained and displayed using only the deviation in the xy directions.

[0052] As shown in FIG. 7, in the bottommost layer 30, the transition of the displacement of the column 32 in three processes is displayed. In the line corresponding to the column 32, the lower position is the same regardless of the process, and the upper position changes according to the variation of the measurement result. This is the same for the upper layer 30 as well. In the second and subsequent layers 30 from the bottom, as the lower position of the column 32, among the displacements of the upper part of the column 32 (included in the layer 30 directly below) connected to the lower part of the column 32, the position due to the displacement measured in the last process (S18) is set. For the layer 30 directly below, since the welding is already completed, there is almost no variation in the displacement from the last measurement, and an appropriate state can be displayed even by using the position of the upper part of the column 32 directly below that was measured last as the lower position of a certain column 32.

[0053] As can be seen from FIG. 7, in the lower layer 30, the tendency of the change in the upper position of the column 32 as the three-dimensional process of the column 32 progresses can be easily recognized. This makes it possible to further improve the accuracy when assembling the column 32.

[0054] And when there is an unselected column 32 (step S108), it repeats from step S104. When there is no unselected column 32, that is, when all the columns 32 have been processed (step S108), the process ends.

[0055] Note that the processes from step S104 to S107 are performed for each column 32, and in step S107, the image elements corresponding to the column 32 are drawn for each process. This means that for each combination of any one of the plurality of columns included in the target layer 30 (or block) and any one of the plurality of processes, the process related to the drawing of the line is performed.

[0056] As described so far, by displaying the displacement of the column 32 by the management system, not only the inclination of the column 32 but also the background in which the inclination occurs can be grasped more precisely. This makes it possible to manage the inclination of the column 32 more precisely.

Explanation of Reference Numerals

[0057] 1 Information processing device, 2 Measuring device, 11 Processor, 12 Memory unit, 13 Communication unit, 14 Input / output unit, 51 Measurement result input unit, 53 Display control unit, 61 Measurement result storage unit, 30 Layer, 32, 321, 322, 323 Column, 33 Beam, 37 Target, 41, 412 Vertical line, 42 Center line, 81 Warning line.

Claims

In a building having a plurality of layers each including a structural member including a plurality of columns, a step of constructing the building and arranging a structural member included in an upper layer above a layer already arranged among the plurality of layers; a step of measuring, in a plurality of steps after the arranging step, the displacement of the upper part of each of the plurality of columns included in the arranged structural member; a step of storing the measured displacement in a storage unit; a step of displaying an image element connecting positions corresponding to the upper and lower parts of each of the plurality of columns based on the measured displacement stored in the storage unit; comprising: In the displaying step, for each combination of any one of the plurality of columns arranged in the arranging step and any one of the plurality of steps, a first position obtained from the displacement of the upper part of the column included in the combination measured in the step included in the combination and the designed xyz-direction position of the upper part of the column, and a second position obtained from the displacement of the upper part of the column connected to the lower part of the column included in the combination, which is the last measured displacement and the designed xyz-direction position of the upper part of the column, an image element connecting them is displayed in the same coordinate system regardless of the step. A construction error management method.

2. In the construction error management method according to claim 1, in the displaying step, for each combination of any one of the plurality of columns arranged in the arranging step and any one of the plurality of steps, an image element is displayed in a display mode corresponding to the step. A construction error management method.

3. In the construction error management method according to claim 1 or 2, in the displaying step, for each of the plurality of columns, when the measured displacement stored in the storage unit is greater than a predetermined threshold value, the display mode of the displayed image element is changed. A construction error management method. In a building having a plurality of layers each including a structural member including a plurality of columns, a displacement acquisition means for constructing the building and acquiring, in a plurality of steps after the arranging step, the measured displacement of the upper part of each of the plurality of columns included in a structural member including the plurality of columns arranged in an upper layer above a layer already arranged among the plurality of layers, and storing it in a storage unit; Display control means for displaying image elements connecting positions corresponding to the upper and lower parts of each of the plurality of columns based on the deviation measured and stored in the memory unit; comprising; For each combination of any one of the plurality of columns arranged in the upper layer and any one of the plurality of steps, the deviation of the upper part of the column included in the combination measured in the step included in the combination and the first position obtained from the designed xyz-direction position of the upper part of the column, and the deviation of the upper part of the column connected to the lower part of the column included in the combination, which is the most recently measured deviation and the second position obtained from the designed xyz-direction position of the upper part of the column, the image elements connecting them are displayed in the same coordinate system regardless of the step. Construction error management system.

5. In a building having a plurality of layers each including a structural member including a plurality of columns, a structural member including a plurality of columns arranged in an upper layer of a layer already arranged among the plurality of layers, obtaining the measured deviation of the upper part of each of the plurality of columns included in the arranged structural member in a plurality of steps after the step of arranging, and deviation acquisition means for storing in a memory unit, and Display control means for displaying image elements connecting positions corresponding to the upper and lower parts of each of the plurality of columns based on the deviation measured and stored in the memory unit; functioning a computer as; For each combination of any one of the plurality of columns arranged in the upper layer and any one of the plurality of steps, the deviation of the upper part of the column included in the combination measured in the step included in the combination and the first position obtained from the designed xyz-direction position of the upper part of the column, and the deviation of the upper part of the column connected to the lower part of the column included in the combination, which is the most recently measured deviation and the second position obtained from the designed xyz-direction position of the upper part of the column, the image elements connecting them are displayed in the same coordinate system regardless of the step. Program.

Images