JP7141981B2 - Measuring instrument for erection adjustment and erection method - Google Patents

Description

TECHNICAL FIELD The present invention relates to an erection adjustment measuring instrument and erection method used for erection of structural columns.

A reverse casting method is known as one of the methods for constructing a concrete structure having a basement floor. The reverse construction method is a construction method in which the first floor is constructed, and then the ground floor and basement floor are constructed at the same time. The construction of the basement floor is constructed in order from the top to the first basement floor and the second basement floor. The pillars that support the floor constructed in order from the top by the reverse casting method are the structural pillars, and the structural pillars become the permanent pillars of the concrete structure.

Japanese Patent Application Laid-Open No. 5-5391 describes a erection frame and a erection jig for a structural column. This built-in frame is installed on the ground surface at the erected position of the structural column, and includes a guide portion that guides the structural column in the vertical direction. The erection jig is a jig used when lifting the structural column, and the structural column is lifted by a lifting machine through the erection jig. The hoisting machine suspends the framing column while the framing column is guided in the vertical direction by the guide portion. This erection jig is arranged at the upper end of the jig body so that the center of gravity of the structural column becomes the center of suspension, and includes a suspension hole to which a wire is connected, a wire connected to the suspension hole, and a hook of a crane. It has a roller shackle interposed between, and the verticality of the structural column is ensured by this hanging hole and roller shackle.

Japanese Patent Laying-Open No. 2014-80836 describes a vertical accuracy control method for structural columns. In this vertical accuracy control method, a measuring tube is arranged outside the structural pillar so as to be substantially parallel to the structural pillar, a target plate is provided at the lower end of the measuring tube, and a target is vertically positioned from above through the measuring tube. A laser plumb is used to irradiate the plate with a laser beam. A point indicating the position of the structural pillar is displayed on the target plate by the irradiated laser beam, and the erection of the structural pillar is corrected based on this point.

JP-A-5-5391 JP 2014-80836 A

Since the structural pillars will later become the permanent pillars, ensuring the verticality of the structural pillars is very important. In other words, very high accuracy is required for the verticality of the structural columns. By the way, in the erection mount and the erection jig for the structural column described above, the verticality of the structural column is ensured by the suspension hole and the roller shackle arranged at the upper end of the jig body. However, if the positional accuracy of the erection frame and the hanging holes to be arranged is insufficient, there is a concern that the accuracy of the verticality of the framing column will decrease.

In the vertical accuracy control method of the structure column described above, the measurement pipe is arranged so as to be parallel to the structure column, the target plate is arranged at the lower end of the measurement pipe, and the laser plumb gauge is arranged at the upper end of the measurement pipe. do. However, the target plate must be attached to the lower end, the measuring pipe must be placed parallel to the structural column inserted into the borehole, and the laser plumb can be placed at the upper end of the measuring pipe. In addition, since the measuring tube and the target plate must be inserted into the borehole from above together with the structural column, there is a problem that the arrangement of the apparatus cannot be easily performed. Furthermore, if the target plate and the laser plumb stand are misaligned, there is a possibility that the accuracy of the plumbness of the structural column will decrease.

An object of the present invention is to provide a measuring instrument for erection adjustment and a erection method that can improve the accuracy of the verticality of structural columns and facilitate the arrangement of the equipment.

A measuring instrument for erection adjustment according to the present invention is an erection adjustment measuring instrument used for erection of a construction pillar, and is arranged at a position facing the outer surface of the construction pillar. A marking device that irradiates a laser beam to display a laser marking line on the outer surface of the structural pillar, and a distance measurement that measures the distance to the outer surface of the structural pillar, placed at a position facing the outer surface of the structural pillar. and a display for displaying the distance measured by the distance measuring device.

In this erection adjustment measuring instrument, the marking device irradiates the outer surface of the structural pillar with a laser beam to display a laser marking line on the outer surface of the structural pillar. Therefore, the verticality of the structural pillar is indicated by marking the structural pillar in advance and irradiating the outer surface of the structural pillar with a laser beam from the marking device at the time of erection to display the laser marking line. The securing can be performed with high accuracy and easily. In addition, in this measuring instrument for erection adjustment, a distance measuring device placed at a position facing the outer surface of the structural pillar measures the distance to the outer surface of the structural pillar, and the distance measured by the distance measuring device is displayed. displayed on the device. Therefore, by displaying the distance between the distance measuring device and the outer surface of the framing pillar on the display, it is possible to improve the positional accuracy of the framing pillar in the excavation hole. Furthermore, the marking device displays the laser marking line on the outer surface of the structural pillar, and the display displays the distance between the distance measuring device and the external surface of the structural pillar, thereby indicating the position of the structural pillar in the excavation hole. and the degree of inclination can be grasped at the same time, the accuracy of the verticality of the structural column can be improved. In addition, in this measuring instrument for erection adjustment, the marking instrument and the distance measuring instrument may be arranged at positions facing the outer surface of the structural column, so there is no need to insert the instrument into the excavation hole from above. Therefore, the configuration of the device can be simplified, and the device can be easily arranged.

In addition, a plurality of marking instruments surrounding the outer surface of the structural pillar and a plurality of distance measuring instruments surrounding the outer surface of the structural pillar may be provided. In this case, the framing column is marked from a plurality of directions, and the distance from the outer surface of the framing column is measured from a plurality of directions. Therefore, the verticality of the structural column can be further enhanced.

A method for erecting a structural column according to the present invention is a method for erecting a structural column to be inserted inside a casing, wherein a measurement for erection adjustment is placed on the upper surface of the casing at a position facing the outer surface of the structural column. A step of arranging the distance measuring device and the marking device of the instrument, a step of the marking device irradiating the outer surface of the structural pillar with a laser beam to display a laser marking line on the outer surface of the structural pillar, and a distance measuring device measures the distance from the distance measuring device to the outer surface of the structural pillar; and displays the distance to the outer surface of the structural pillar on the display.

In this erection method, the marking device irradiates the outer surface of the structural column with a laser beam to display a laser marking line. Therefore, the verticality of the structural pillar can be ensured with high accuracy and easily by marking the structural pillar in advance and irradiating the outer surface of the structural pillar with a laser beam from the marking device at the time of erection. be able to. Further, in this erection method, the distance measuring device measures the distance to the outer surface of the structural column, and the measured distance is displayed on the display. Therefore, by displaying the distance between the distance measuring device and the outer surface of the framing pillar on the display, it is possible to improve the positional accuracy of the framing pillar in the excavation hole. Furthermore, by simultaneously displaying the laser marking line and the distance between the distance measuring instrument and the outer surface of the structural pillar, the position and inclination of the structural pillar can be grasped at the same time, so the state of the structural pillar can be checked. It is possible to grasp with high accuracy and further improve the accuracy of the verticality of the structural column. Moreover, in this erection method, the marking device and the distance measuring device need only be placed on the upper surface of the casing facing the outer surface of the structural column, so there is no need to insert the device into the excavation hole from above. Therefore, the configuration of the device can be simplified, and the device can be easily arranged.

ADVANTAGE OF THE INVENTION According to this invention, while being able to raise the perpendicularity precision of a structural pillar, arrangement|positioning of an apparatus can be performed easily.

It is a top view which shows the measuring instrument for erection adjustment which concerns on embodiment. FIG. 2 is a perspective view schematically showing a marking device and a distance measuring device of the erection adjustment measuring device of FIG. 1 ; FIG. 3 is a longitudinal sectional view showing an example of arrangement of the marking device and the distance measuring device of FIG. 2; FIG. 2 is an exemplary block diagram showing the functions of the erection adjustment measuring instrument of FIG. 1; 1. It is a figure which shows the example of the structure pillar management screen displayed on the display of the measuring instrument for erection adjustment of FIG. It is a flow chart which shows an example of each process of the erection method concerning an embodiment. Each of (a), (b), (c) and (d) is a vertical cross-sectional view schematically showing the erection state of the structural column in each step of FIG. 6 .

Hereinafter, embodiments of the measuring instrument for erection adjustment and the erection method according to the present disclosure will be described in detail with reference to the drawings. In the description of the drawings, the same or corresponding elements are denoted by the same reference numerals, and duplicate descriptions are omitted as appropriate. In addition, the drawings may be partially simplified or exaggerated in order to facilitate understanding, and the dimensional ratios and the like are not limited to those described in the drawings.

In the present specification, a "measuring instrument for erection adjustment" is a measuring instrument for a framing pillar used when adjusting the position and verticality of a framing pillar to be erected. The terms "verticality" and "verticality" indicate the degree of verticality of a columnar member. The greater the deviation (inclination) of the members, the lower the verticality.

FIG. 1 is a plan view showing an example of arrangement of the erection adjustment measuring instruments 1. FIG. FIG. 2 is a perspective view showing an example of arrangement of the erection adjustment measuring instrument 1 according to the embodiment. As shown in FIGS. 1 and 2, the structural column P is inserted inside, for example, a cylindrical casing C, and the position and verticality of the structural column P inside the casing C are determined. It is adjusted by the measuring instrument 1 for direction adjustment.

The structural column P is, for example, a cross-shaped H steel in which webs P2 intersect in a cross shape. That is, in the cross section perpendicular to the longitudinal direction of the structural column P, the four webs P2 radially extending in mutually different directions and the end opposite to the confluence P3 of the four webs P2. and four flange portions P4 located in the portion. In this embodiment, the outer surface P1 of the structural column P indicates the surface of the flange portion P4 facing the opposite side (outside) of the web P2.

The erection adjustment measuring instrument 1 is, for example, an automatic measuring instrument that automatically measures the position of the structural column P inside the casing C. As shown in FIG. The erection adjusting measuring instrument 1 includes a plurality of marking instruments 2 and a plurality of distance measuring instruments 3 . For example, three marking instruments 2 and three distance measuring instruments 3 are arranged so as to surround the structural column P. The marking device 2 is a laser marking device.

As an example, three marking devices 2 and three distance measuring devices 3 are arranged so as to surround the structural pillar P from three directions. In this case, it is possible to suppress the increase in the cost of the equipment, and the remaining one direction can be vacated, and a frame for receiving the reinforcing bar cage F (see FIG. 7) attached to the casing C is installed in the remaining one direction. can do.

The erection adjusting measuring instrument 1 includes a plurality of supporting members 5, and the marking instrument 2 and the distance measuring instrument 3 are mounted on each of the plurality of supporting members 5. As shown in FIG. For example, the marking device 2 and the distance measuring device 3 are both placed centrally on the upper surface of the support member 5 . The support member 5 is placed on the upper surface of the casing C and extends linearly on the upper surface of the casing C, for example. The support member 5 includes, for example, a plate-like member 6 placed on the upper surface of the casing C and a hollow member 7 placed on the upper surface 6b of the plate-like member 6 .

The plate member 6 and the hollow member 7 are made of aluminum, for example. In this case, the plate member 6 may be an aluminum flat bar, and the hollow member 7 may be an aluminum square pipe (angle square pipe). Thus, when the support member 5 is made of aluminum, the weight of the support member 5 can be reduced.

For example, the weight of the plate member 6 is 6 kg or more and 7 kg or less, and is 6.7 kg as an example. The weight of the hollow member 7 is 7 kg or more and 8 kg or less, and is 7.35 kg as an example. For example, the total weight of one marking device 2, one distance measuring device 3, plate member 6 and hollow member 7 is about 15 kg. Therefore, the weight of the measuring instrument 1 for erection adjustment is realized, and the marking instrument 2, the distance measuring instrument 3, the plate-like member 6 and the hollow member 7 can be arranged by one operator. .

For example, the length L1 of the plate member 6 is 1 m or more and 5 m or less, and is 3 m as an example. The thickness T1 of the plate member 6 is 5 cm or more and 15 cm or less, and is 9 cm as an example. Further, the width B1 of the plate member 6 is 70 cm or more and 130 cm or less, and is 100 cm as an example. However, the values of the length L1, thickness T1, and width B1 are not limited to those described above and can be changed as appropriate.

For example, the length L2 of the hollow member 7 is 1 m or more and 5 m or less, and is 3 m as an example. The width B2 of the hollow member 7 is 50 cm or more and 100 cm or less, and is 75 cm as an example. The height H of the hollow member 7 is 50 cm or more and 100 cm or less, and is 75 cm as an example. Moreover, the thickness T2 of the hollow member 7 is 2 cm or more and 3 cm or less, and is 2.5 cm as an example. However, the values of the length L2, the width B2, the height H and the thickness T2 are not limited to those described above and can be changed as appropriate.

For example, the one end 6c and the other end 6d of the plate member 6 in the longitudinal direction D1 are aligned with the one end 7b and the other end 7c in the longitudinal direction D1 of the hollow member 7, respectively. An end portion 6f of the plate-like member 6 facing the structural column P side in the width direction D2 is aligned with an end portion 7d of the hollow member 7 facing the structural column P side in the width direction D2. For example, on the upper surface 7f of the hollow member 7, a reference ink 7g extends along the longitudinal direction D1. be.

For example, the marking device 2 may be an automatic marking device arranged above the distance measuring device 3, as shown in FIG. As an example, on the upper surface 7f of the hollow member 7, a mounting member 8 for mounting the marking device 2 is fixed by a screw N, and the distance measuring device 3 is placed between the mounting member 8 and the hollow member 7. placed.

The mounting member 8 has a pair of fixed portions 8b fixed to the upper surface 7f of the hollow member 7 and arranged along the longitudinal direction D1, and a pair of rising portions rising from the inner end portions of the mounting member 8 of each fixed portion 8b. A portion 8c and an upper plate portion 8d extending along the longitudinal direction D1 between the upper ends of the pair of rising portions 8c. The marking device 2 is placed on the upper plate portion 8d. However, the configuration of the placement member 8 on which the marking device 2 is placed is not limited to the above example and can be changed as appropriate.

For example, the structural pillar P is previously marked with ink, and as shown in FIG. , a laser marking line E extending in the vertical direction is displayed. Here, the “laser marking line” refers to a line displayed on the object by laser light emitted from the laser marking device toward the object.

The position and inclination of the structural pillar P are adjusted so that the black of the structural pillar P matches the laser marking line E. As shown in FIG. The ink of the structural pillar P may be a scale tape P5 attached to the structural pillar P, for example. In addition, an inclinometer for measuring the inclination of the structural pillar P is attached to the structural pillar P, and the position of the top end of the structural pillar P confirmed when the clinometer is zero ( reading).

As shown in FIGS. 1 and 4 , the erection adjusting measuring instrument 1 includes, for example, three distance measuring instruments 3 , a control section 10 and a display device 20 . Hereinafter, when identifying the three distance measuring instruments 3, each distance measuring instrument 3 may be referred to as a first distance measuring instrument 3b, a second distance measuring instrument 3c, and a third distance measuring instrument 3d. The indicator 20 is provided, for example, around the erection pillar P to be erected, and is arranged at a position that can be visually recognized by the worker who performs erection work of the erection pillar P.

The control unit 10 is provided in a computer, for example, and can communicate with each of the first distance measuring device 3b, the second distance measuring device 3c, the third distance measuring device 3d, and the display device 20. FIG. The computer in which the control unit 10 is provided is, for example, a processor (e.g., CPU) that executes an operating system and application programs, etc., a main storage unit configured by ROM, RAM, etc., and a hard disk or flash memory. It comprises an auxiliary storage unit, a communication control unit composed of a network card or a wireless communication module, and an input device such as a keyboard or mouse.

Each functional element of the computer of the control unit 10 is implemented by loading predetermined software into the processor or main storage unit and executing the software. The processor operates the above-described communication control unit and the like according to the software, and reads or writes data in the main storage unit or the auxiliary storage unit. Data and applications required for computer processing are stored in the main memory or auxiliary memory.

The first distance measuring device 3b, the second distance measuring device 3c, and the third distance measuring device 3d are arranged in mutually different directions when viewed from the structural pillar P, and the distance K1 from the structural pillar P is measured from mutually different directions. , K2, K3 are measured. Each of the first distance measuring device 3b, the second distance measuring device 3c, and the third distance measuring device 3d is a non-contact sensor, for example, a laser distance sensor.

In this case, each of the first distance measuring device 3b, the second distance measuring device 3c, and the third distance measuring device 3d irradiates the outer surface P1 of the structural column P with a laser beam, and emits the laser beam reflected from the outer surface P1. Distances K1, K2, and K3 to the outer surface P1 are measured by receiving the light. Specifically, each of the first distance measuring device 3b, the second distance measuring device 3c, and the third distance measuring device 3d has an output section that outputs laser light and a light receiving section that receives the laser light.

The control unit 10 has a calculation unit 13 that calculates the distance between each distance measuring device 3 and the outer surface P1 of the structural column P. As shown in FIG. The calculation unit 13 measures the time from when the output unit of each distance measuring device 3 outputs a laser beam to the outer surface P1 until when the light receiving unit receives the laser beam from the outer surface P1. Distances K1, K2, K3 are calculated in real time.

The control unit 10 includes, for example, a storage unit 11 that stores received various information, a display control unit 12 that controls display of the various information stored in the storage unit 11 on the display unit 20, and the above-described calculation unit 13. and The display control unit 12 displays the distances K1, K2, K3 between each distance measuring device 3 and the outer surface P1 of the structural column P calculated by the calculation unit 13 on the display device 20 . The display device 20 includes a display of an information terminal such as a personal computer or a notebook computer, and a display of a mobile terminal such as a mobile phone or a tablet.

FIG. 5 shows an exemplary structural column management screen M including distances K1, K2, and K3 displayed on the display 20 by the display control unit 12. As shown in FIG. The erection adjustment measuring instrument 1 measures, for example, the distances K1, K2, and K3 for a plurality of construction pillars P, and the construction pillar management screen M displays the construction pillar numbers for identifying the plurality of construction pillars P. Display M1.

As described above, the calculation unit 13 measures the time from when the output unit of each distance measuring device 3 outputs laser light to the outer surface P1 until the light receiving unit receives the laser light from the outer surface P1. Distances K1, K2 and K3 to P1 are calculated. However, the calculation unit 13 may calculate a value obtained by subtracting or adding an offset value to the distances K1, K2, and K3 as the framing pillar distance to the framing pillar P. In this case, the structural pillar management screen M displays a laser distance display section M2 that displays the distances K1, K2, and K3, an offset value display section M3, and a structural pillar distance display section M4. Note that FIG. 5 shows an example in which the offset value displayed in the offset value display section M3 is zero.

Next, the erection method of the structure pillar P according to this embodiment will be described with reference to FIGS. 6, 7(a), 7(b), 7(c) and 7(d). In this embodiment, the structural column P is built into the excavated hole J. As shown in FIG. FIG. 6 is a flow chart showing an example of each step of the erection method of the structural column P. As shown in FIG. 7(a), 7(b), 7(c) and 7(d) show state transitions of the excavation hole J and the structural pillar P in each step of the erection method of the structural pillar P. is shown.

First, as shown in FIGS. 7(a) and 7(b), excavation holes J, which are pile holes into which structural columns P are to be inserted, are excavated (step Z1). For example, borehole J is formed by drilling with an earth drill machine. Next, a slime cleaner is inserted into the drilled hole J to remove the slime from the drilled hole J (step Z2), and the reinforcing bar cage F is placed in the drilled hole J (step Z3).

As shown in FIG. 7(c), after the reinforcing bar cage F is placed in the excavation hole J, the structure column P is lifted by the lifting machine so that the structure column P is positioned directly above the excavation hole J. The position of the true pillar P is adjusted, the structuring pillar P is lowered, and the structuring pillar P is inserted into the excavation hole J (step Z4). Then, the erection adjustment measuring instrument 1 is arranged around the structure pillar P on the ground Y at the upper end of the excavation hole J (step Z5). At this time, as shown in FIGS. 1 and 2 , a plurality of (for example, three) support members 5 , a plurality of distance measuring devices 3 , and a plurality of marking devices 2 are arranged around the support member 5 .

After arranging the support member 5, the distance measuring device 3 and the marking device 2, each of the plurality of marking devices 2 irradiates the pillar P with a laser beam A so that the outer surface P1 of the pillar P is marked with a laser beam. The outgoing line E is displayed (step Z6). Then, each of the plurality of distance measuring instruments 3 measures the distances K1, K2, K3 from the outer surface P1 of the structural column P (step Z7), and the display control unit 12 displays the measured distances K1, K2, K3. displayed on the device 20 (for example, the structural column management screen M) (step Z8).

As described above, by displaying the laser marking lines E on the outer surface P1 of the structural pillar P and displaying the distances K1, K2, and K3 on the display 20, the operator who erects the structural pillar P can perform excavation. It is possible to grasp the position and verticality of the structural column P inserted into the hole J. After grasping the position and verticality of the structural pillar P, the erection of the structural pillar P is corrected (step Z9), and if the verticality of the structural pillar P cannot be secured (NO in step Z10 ), and continue to correct the erection of the structural column P. On the other hand, when the verticality of the structural column P is ensured, as shown in FIG. ), the series of steps is completed.

Next, the effects obtained from the erection adjusting measuring instrument 1 and the erection method according to the present embodiment will be described in detail. As shown in FIGS. 1 and 2, in the erection method and erection adjustment measuring instrument 1 according to the present embodiment, the marking device 2 irradiates the outer surface P1 of the structural column P with the laser beam A. A laser marking line E is displayed on the outer surface P1 of the structural pillar P. Therefore, the framing column P is marked with a scale tape P5 or the like in advance, and the outer surface P1 of the framing column P is irradiated with a laser beam A from the marking device 2 at the time of erection to display the laser marking line E. By doing so, it is possible to ensure the verticality of the structural column P with high precision and ease.

In addition, in the erection adjusting measuring instrument 1, the distance measuring instrument 3 arranged at a position facing the outer surface P1 of the structural column P measures the distances K1, K2, K3 from the outer surface P1 of the structural column P, The distances K1, K2, K3 measured by the distance measuring device 3 are displayed on the display 20 (see FIG. 5, for example). Therefore, by displaying the distances K1, K2, and K3 between the distance measuring device 3 and the outer surface P1 of the structural pillar P on the display 20, the positional accuracy of the structural pillar P in the excavation hole J can be improved.

Furthermore, the marking device 2 displays the laser marking line E on the outer surface P1 of the structural column P, and the display device 20 indicates the distances K1, K2, K3 between the distance measuring device 3 and the outer surface P1 of the structural column P. By displaying the position and inclination of the structural column P in the excavation hole J, the vertical accuracy of the structural column P can be improved. In addition, in the erection adjustment measuring instrument 1, the marking instrument 2 and the distance measuring instrument 3 may be arranged at positions facing the outer surface P1 of the structural column P, so the device needs to be inserted into the excavation hole J from above. There is no Therefore, the configuration of the device can be simplified, and the device can be easily arranged.

The erection adjusting measuring instrument 1 according to the present embodiment includes a plurality of marking instruments 2 surrounding the outer surface P1 of the structural pillar P, and a plurality of distance measuring instruments 3 surrounding the outer surface P1 of the structural pillar P. . Therefore, by displaying laser marking lines E on the outer surface P1 of each marking device 2 from a plurality of directions with respect to the structural pillar P, the degree of inclination of the structural pillar P can be grasped with high accuracy.

Furthermore, each distance measuring device 3 measures each of the distances K1, K2, K3 from a plurality of directions. Therefore, by measuring the distances K1, K2, and K3 in a plurality of directions, the position of the structural column P in the excavation hole J can be grasped with high accuracy. Therefore, the verticality and positional accuracy of the structural column P can be further improved.

The embodiments of the erection adjustment measuring instrument 1 and the erection method according to the present disclosure have been described above. However, the erection adjustment measuring instrument and the erection method according to the present invention are not limited to the above-described embodiments, and can be modified or modified within the scope of not changing the gist of each claim. may have been applied. That is, the shape, size, number, material and layout of each part of the measuring instrument for erection adjustment, and the contents and order of each step of the erection method can be changed as appropriate within the scope of not changing the above gist. .

For example, in the above-described embodiment, each distance measuring instrument 3 (each of the first distance measuring instrument 3b, the second distance measuring instrument 3c, and the third distance measuring instrument 3d) is in contact with the outer surface P1 of the structural pillar P by laser light. An example of measuring the distances K1, K2, and K3 has been described. However, the means for measuring the distances K1, K2, and K3 between the distance measuring device 3 and the outer surface P1 of the structural column P does not have to be laser light, and can be changed as appropriate.

Further, in the above-described embodiment, the structural column P, which is a cross-shaped H-steel in which the webs P2 intersect in a cross shape, has been described. However, the type and shape of the structural column is not limited to the cross-shaped H steel, and can be changed as appropriate.

1... erection adjustment measuring instrument, 2... marking instrument, 3... distance measuring instrument, 3b... first distance measuring instrument, 3c... second distance measuring instrument, 3d... third distance measuring instrument, 5... support member, 6 Plate member 6b Upper surface 6c One end 6d Other end 6f End 7 Hollow member 7b One end 7c Other end 7d End 7f Upper surface 7g Ink , 8... Mounting member 8b... Fixed part 8c... Rising part 8d... Upper plate part 10... Control part 11... Storage part 12... Display control part 13... Calculation part 20... Display device A ...Laser beam, B1, B2...Width, C...Casing, D1...Longitudinal direction, D2...Width direction, E...Laser marking line, F...Reinforcing bar cage, J...Excavation hole, K1, K2, K3...Distance, M ... structure pillar management screen, M1... structure pillar number, M2... laser distance display part, M3... offset value display part, M4... structure pillar distance display part, N... screw, P... structure pillar, P1... outer surface , P2...web, P3...confluence portion, P4...flange portion, P5...scale tape, Q...concrete, Y...ground.

Claims (2)

A measuring instrument for erection adjustment used for erection of structural columns,
a marking device disposed at a position facing the outer surface of the structural pillar, for irradiating the outer surface of the structural pillar with a laser beam to display a laser marking line on the outer surface of the structural pillar;
a distance measuring device arranged at a position facing the outer surface of the structural pillar and measuring the distance from the outer surface of the structural pillar;
a display that displays the distance measured by the distance measuring device;
with
a plurality of marking devices surrounding the outer surface of the structural column;
a plurality of the distance measuring instruments surrounding the outer surface of the structural column;
A measuring instrument for erection adjustment. A erection method for a structural column inserted inside a casing,
A step of arranging a distance measuring device and a marking device of measuring instruments for erection adjustment at a position facing the outer surface of the structural column on the upper surface of the casing;
a step in which the marking device irradiates the outer surface of the structural pillar with a laser beam to display a laser marking line on the outer surface of the structural pillar;
a step in which the distance measuring device measures the distance from the distance measuring device to the outer surface of the structural column;
a step of displaying the distance to the outer surface of the structural pillar on a display;
Erection method for structural columns.

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