JPH08145663A - Vertical accuracy measuring system for structure and method thereof - Google Patents

Abstract

(57) [Abstract] [Purpose] It is not necessary to provide a space without obstacles that are continuous in the vertical direction, and it is possible to measure without being influenced by the weather and to measure with an accuracy of 1 mm. To provide a vertical accuracy measuring method and its system. [Structure] The vertical accuracy measuring system for a structure according to the present invention is
The first GPS installed at the reference position on the top layer of the structure under construction
A receiving means; a second GPS receiving means provided at one or more predetermined positions on the ground around the structure; a computing means for analyzing received data obtained by the first and second GPS receiving means; And second transmitting means for transmitting the received data from the second GPS receiving means to the calculating means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system and method for measuring vertical construction accuracy when constructing a structure.

[0002]

2. Description of the Related Art Conventionally, in order to measure the construction accuracy in the vertical direction when constructing a structure, particularly a super high-rise structure, a laser or an optical distance measuring device has been used. In the measurement method using a laser, a laser emitter is installed at a reference point on the ground, a laser is emitted vertically upward from this laser emitter, and the reference point installed on this laser and the top layer of the structure The difference from the point is measured and the vertical construction accuracy is calculated. In addition, in the measurement method using a light-wave rangefinder, the light-wave mirror installed at the reference point of the top layer of the structure under construction or the light-wave mirror installed on the rooftop of the building on or near the structure is collimated. The amount of movement of the reference point on the side is measured to determine the construction accuracy in the vertical direction.

[0003]

However, in the measuring method using the laser, the laser can pass through from the reference point on the ground to the reference point on the uppermost layer of the structure, so that the vertical direction without any obstacle can be considered. Space is needed.
Normally, an elevator shaft or a pipe provided for laying a cable is used as this vertical space, but in this case, the laser may be shut off on the intermediate floor or the structure may become a super high-rise depending on the construction method and work content. The more
There is a problem that it becomes difficult to secure such a vertical space.

Further, in the method using the above-mentioned optical range finder, when the optical range finder is installed on the ground, the elevation angle when collimating the reference point on the uppermost floor becomes higher as the structure becomes super-higher. There is a drawback that it becomes large and collimation becomes impossible (the elevation angle is limited to 40 to 45 °). This shortcoming can be avoided if the position of the optical rangefinder is as far as possible from the structure, but depending on the height of the structure, several hundred meters to 1 km.
Must also be separated, and measurement from such a long distance is a few
In many cases, an error of cm is generated, and the measurement result also depends on the weather.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to provide measurement without being influenced by the weather, since it is not necessary to provide a space without obstacles continuous in the vertical direction. It is an object of the present invention to provide a vertical accuracy measuring system for structures and a method thereof that can measure with an accuracy of 1 mm unit.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above object, and its gist is a system for measuring the construction accuracy in the vertical direction when constructing a structure. First G installed at the reference position of the uppermost layer of the structure
PS receiving means, second GPS receiving means provided at one or more predetermined positions on the ground around the structure, and computing means for analyzing received data obtained by the first and second GPS receiving means. A vertical accuracy measuring system for a structure, comprising: a transmitting means for transmitting the received data from the first and second GPS receiving means to the computing means.

In the structure vertical accuracy measuring system of the present invention, the reference position of the uppermost layer of the structure under construction is, for example, a predetermined point at the ground level of the structure under construction, and this structure is a design drawing. The point of each layer of the structure, which should be located vertically above the predetermined point of the ground level when it is constructed vertically based on the above, can be set as the reference position. To measure the vertical construction accuracy of the structure by comparing the reference position of each floor of the structure under construction determined in this way with the actual measurement value obtained by the first GPS receiving means fixed at that position. You can

In the vertical accuracy measuring system for structures according to the present invention, the GPS receiving means means Global Positioning Sys
It is a receiver that receives radio waves from artificial satellites launched for tem (Global Positioning System).

In the vertical accuracy measuring system for a structure according to the present invention, the second GPS receiving means may be provided at two places on the ground around the structure. When the second GPS receiving means is provided in two places, the first GPS provided in the uppermost layer of the structure
Three surveying baselines can be set between the receiving means and the second GPS receiving means, and by performing a baseline analysis from these three surveying baselines, if there is one surveying baseline, that is, the second GPS Compared with the case where the receiving means is provided only in one place, the actual measurement value of the reference position can be obtained with extremely high accuracy.

In the vertical accuracy measuring system for a structure according to the present invention, the first GPS receiving means may be moved to the uppermost layer every time a structure is further built up, or each time a structure is built up in a predetermined hierarchy. For example, it may be moved to the uppermost layer every time 5 layers or 10 layers are constructed.

In the structure vertical accuracy measuring system of the present invention, the calculating means analyzes the received data obtained by the first and second GPS receiving means to obtain an actual measurement value of the reference position, and the calculating device. It may be provided as a separate computing device from the computing device that obtains the vertical accuracy of the structure from the measured value of the reference position, or both computing devices may be provided as the same computing device. Further, the arithmetic means may be configured to also have a function as a control means for totally controlling the respective devices of the system. The function as the control means is, for example, a function of controlling the GPS receiving means of all the systems to receive GPS radio waves at the same time, and controlling the timing of data transmission by the transmitting means described later.

In the vertical accuracy measuring system for structures according to the present invention, the transmitting means for transmitting the received data from the first and second GPS receiving means to the calculating means is from each GPS receiving means to the calculating means. It can be a wired data communication line arranged so that data can be transmitted, or it can be a wireless data transmission / reception means in which each GPS receiving means is provided with a wireless data transmitting device and the calculating means is provided with a wireless data receiving device. .

Another subject matter of the present invention is a method for measuring the vertical construction accuracy when constructing a structure, wherein GPS radio waves are received at the reference position of the uppermost layer of the structure during construction, GPS radio waves are received at one or more predetermined positions on the ground around the object, these GPS radio waves are transmitted to an arithmetic means, and the GPS radio waves are analyzed by this arithmetic means to obtain an actual measurement value of the reference position of the uppermost layer of the structure. This is a method for measuring the vertical accuracy of a structure, in which the vertical accuracy of the structure is obtained.

In the structure vertical accuracy measuring method of the present invention, the reference position of the uppermost layer of the structure under construction and the calculating means are set in the same manner as in the vertical accuracy measuring system or have the same configuration. You can

In the structure vertical accuracy measuring method of the present invention, the GPS radio wave is the identification information or orbit of the artificial satellite transmitted from the artificial satellite launched for the Global Positioning System. A radio wave that contains information.

In the structure vertical accuracy measuring method of the present invention, the vertical accuracy of the structure may be calculated by receiving GPS radio waves each time a structure is constructed to obtain an actual measurement value of the reference position of the uppermost layer. Alternatively, the vertical accuracy may be obtained by receiving GPS radio waves and obtaining an actual measurement value of the reference position each time a structure is constructed in a predetermined hierarchy, for example, every time five or ten hierarchies are constructed.

[0017]

The structure vertical accuracy measuring system of the present invention defines one or more predetermined points on the ground level plane of the structure,
A second GPS receiving means is provided at this point, and the positional relationship between these predetermined points is measured and obtained in advance. Then, when the structure is built up to a predetermined height, a point located vertically above a predetermined point is determined as a reference position on the uppermost part based on the design drawing, and a first GPS receiving means is provided here, The second GPS receiving means is connected to the computing means via the respective communication means.

When the above-mentioned vertical accuracy measuring system is installed, each GPS receiving means is controlled by the computing means to simultaneously receive GPS radio waves, and these GPS radio waves are sequentially transmitted to the computing means via the communication means. The (X, Y, Z) coordinate values of the installation location of the second GPS receiving means and the predetermined location are input as the initial values to the computing means in advance, and the GPS radio wave is analyzed based on these initial values. Then, the (X, Y, Z) coordinate value of the reference position is obtained. Then, the amount of movement of the reference position, that is, the amount of deviation of the reference position from the predetermined point in the X and Y directions is obtained. Then, one of the X coordinate value and the Y coordinate value of the movement amount is managed so as not to exceed the management value.

[0019]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a simplified explanatory view when the vertical accuracy measuring system for structures of the present invention is applied to a super high-rise building, and FIG. 2 is a screen of the display device 6a of FIG. The vertical accuracy measuring system for a structure according to the present invention includes a GPS receiver 1 as a first GPS receiving means provided at a reference position O ′ of the uppermost layer of a super high-rise building 20 under construction, and a super high-rise building 20. The second G installed at points A and B around the
The GPS receiver 2 and GPS receiver 3 as PS receiving means and the reception data obtained by the GPS receivers 1, 2 and 3 are analyzed to obtain an actual measurement value (X, Y, Z) of the reference position O ′. An analysis computer 5 as a calculation means, a vertical precision management computer 6 as a calculation means for obtaining the vertical precision of the super high-rise building 20 from the measured values (X, Y, Z) of the reference position O ', and GPS reception. Data communication lines 4a, 4b, 4c are provided as transmission means for transmitting GPS reception data from the machines 1, 2, 3 to the analysis computer 5.

The analysis computer 5 is also configured to have a function as a control means for totally controlling the respective devices constituting the system.

The structure vertical accuracy measuring system of the present invention is provided with a display device 6a connected to the vertical accuracy management computer 6 in addition to the above-mentioned main parts. The display device 6a includes a simplified elevation view 7 of a super high-rise building 20 to which the present invention is applied, a simplified plan view 8 and an appropriate position of a ground level plane of the super high-rise building 20 under construction. The (X, Y, Z) coordinate value 9 of the determined O point, the (X, Y, Z) measured coordinate value 10 of the reference position O'of the top floor of the super high-rise building 20, and the reference position O ' The amount of movement 11, that is, the reference position O ′ deviated from the point O in the X direction and the Y direction, and the reference position O ′.
The management target value 12 of the movement amount of is displayed.

Next, the structure vertical accuracy measuring method of the present invention will be described using the above-described vertical accuracy measuring system.

First, an O point is set at an appropriate position on the ground level plane of the super high-rise building 20 under construction, and points A and B are set at appropriate positions on the ground level around the super high-rise building 20. To determine. Here, these A, B, O
For each of the points, an accurate position is measured using a conventional surveying instrument such as a transit or theodolite, and the mutual positional relationship is obtained in advance.

When the super high-rise building 20 has been built up to a predetermined level, for example, the 10th floor, the reference position O'is determined on the uppermost level based on the design drawing. This reference position O ′ is defined as a point located vertically above the point O when the super high-rise building 20 is constructed without error in the vertical direction based on the design drawing.

GPS receivers 1, 2 and 3 are installed at the points A, B and the reference position O'determined as described above, and these GPS receivers 1, 2 and 3 are connected to the data communication line 4a, respectively. The analysis computer 5 is connected via 4b and 4c, and the analysis computer 5 is further connected to the vertical accuracy management computer 6 having the display device 6a. After the above system is installed, the analyzing computer 5 controls the GPS receivers 1, 2 and 3 to simultaneously receive GPS radio waves, and these GPS radio waves are sequentially transmitted through the data communication lines 4a, 4b and 4c. , To the analysis computer 5. In this analysis computer 5, the points A and B and (X, Y,
Z) coordinate value is input as an initial value, and the GPS radio wave is analyzed based on this initial value to obtain the (X, Y, Z) coordinate value of the reference position O ′.

Next, the (X, Y, Z) coordinate value of the reference position O'is transferred to the vertical accuracy management computer 6, and the reference position O '
The movement amount 11 of the reference position O ′ from the point O (X,
The amount of deviation in the Y direction is calculated. And this movement amount 11
When either one of the X coordinate value and the Y coordinate value exceeds the following management value 12, the display of the movement amount 11 blinks and the vertical accuracy management computer 6 generates a warning sound.
Here, as the management value 12, for example, 10
According to the rules of the "Guideline for measuring accuracy of steel frame (Architectural Institute of Japan)", (height of reference position O '/ 4000) + 7 (mm), or 30
The smaller of mm can be adopted.

Further, for example, every time 10 levels are constructed on this, similarly to the reference position O'of the 10 levels, the reference position O'is determined in the uppermost layer at the time of construction, and the super high-rise building 20 Measure the vertical accuracy of. Then, each time the moving amount 11 of the reference position O ′ is corrected, that is, the construction error (tilt) in the vertical direction of the super high-rise building 20 is corrected, the super high-rise building 20 is constructed. If the measurement and correction of the construction vertical accuracy are repeated for each short floor, for example, for each floor, the construction accuracy in the vertical direction is further improved.

[0029]

According to the structure vertical accuracy measuring system and method of the present invention, the first GPS receiving means is provided at the reference position of the uppermost layer of the structure, and the second GPS receiving means is provided on the ground around the structure. Since it is provided at one or more predetermined positions and receives radio waves directly from the artificial satellite, it is not necessary to provide a vertically continuous obstacle-free space in the floor between the ground floor and the top floor.

Further, in the present invention, since the GPS receiving means is used to measure the vertical accuracy of the structure, the measurement can be performed without being influenced by the weather. Highly accurate measurement,
In other words, it is possible to measure with an accuracy of 1 mm.

[Brief description of drawings]

FIG. 1 is a simplified explanatory diagram when a vertical accuracy measuring system for a structure according to the present invention is applied to a super high-rise building.

FIG. 2 is a display screen of a structure vertical accuracy measurement system of the present invention.

[Explanation of symbols]

 1 GPS receiver (first GPS receiving means) 2 GPS receiver (second GPS receiving means) 3 GPS receiver (second GPS receiving means) 4a, 4b, 4c Data communication line (transmitting means) 5 Analysis Computer (calculation means) 6 Vertical accuracy control computer (calculation means) 20 Super high-rise building (structure)

Claims (2)

[Claims] 1. A system for measuring a construction accuracy in a vertical direction when constructing a structure, wherein a first GPS provided at a reference position of a top layer of the structure under construction.
Receiving means, second GPS receiving means provided at one or more predetermined positions on the ground around the structure, and calculating means for analyzing received data obtained by the first and second GPS receiving means; A vertical accuracy measuring system for a structure, comprising: a transmitting means for transmitting the received data from the first and second GPS receiving means to the computing means. 2. A method for measuring vertical construction accuracy when constructing a structure, comprising receiving GPS radio waves at a reference position of the uppermost layer of the structure during construction, The GPS radio waves are received at the above predetermined positions, these GPS radio waves are transmitted to the calculating means, the GPS radio waves are analyzed by this calculating means, and the actual measurement value of the reference position of the uppermost layer of the structure is obtained to determine the vertical position of the structure. A vertical accuracy measurement method for structures that requires accuracy.