JP7307663B2 - Installation method of total station for construction of steel structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for installing a total station (TS) for automatic collimation in automatic measurement and erection adjustment of steel columns.

A plurality of techniques using a total station are known as techniques for erecting steel columns of this type. For example, as a first known technique, the planned position value of the optical prism is calculated from the three-dimensional coordinates of the steel frame calculated in the design and planning by a computer, the total station is driven in the calculated direction, and the total station is used to operate the plan. Based on the position value, the actual position of the surrounding optical prism is automatically searched for 24 hours, the actual position is measured, the data is transmitted to the computer, and the deviation of the transmitted actual position from the planned position value is detected by the computer. Calculation and storage of changes from the time of erection, etc., linking the calculation results with CAD data, always updating to the latest data, so as to find the difference between the design, plan and construction on the drawing and manage the construction. (Patent Document 1).

According to the automatic building surveying and management method according to the first known technique, displacement measurement is performed with several steps higher accuracy than before, total station control and data transmission are automatically performed 24 hours a day, construction database and CAD It is possible to manage erection and erection work with high precision and high productivity by linking to data.

As a second known technique, there is a construction method for assembling a set of a plurality of column members, and in a state in which the set of column members is attached, the top of each column member is set as a measurement target point, and each of the column members is measured. A setting procedure for setting a position where the design side target point can be seen from the top of the column member as a measurement point and setting reference points at two locations that can be seen from the measurement point, the relative position of the reference point with respect to the measurement point, and the measurement By measuring the relative position of the target point, a measurement procedure for obtaining the position of the measurement target point with respect to the reference point, and the erection of the set of column members is corrected based on the position of the measurement target point. A erection method characterized by comprising a correction means for performing (Patent Document 2).

According to the erection method according to the second known technique, the top of one column member is used as a measurement point, and the top of each column member, which is the measurement target point, is measured from this measurement point. This means that the construction work can be carried out smoothly by measuring the

Japanese Unexamined Patent Publication No. 6-137871 Published patent publication of Japanese Patent Application Laid-Open No. 2014-91924

In the invention of the first known technique, optical prisms are provided at two reference points, and a total station is provided at an arbitrary position with respect to the optical prisms. It is provided, and the computer detects the erection position of the steel frame column based on the three-dimensional coordinates of X, Y, Z, and does not mention the installation of the total station at all, so it is in a position that does not interfere with the work. Since it is only mentioned that it is provided, it has the problem of lacking accuracy and stability of collimation.

In the above-mentioned second known technique, a drive mechanism and a total station capable of collimating within a range of 360 degrees in the horizontal direction and within a predetermined angle in the vertical direction are installed in a frame provided at the top of the steel column. The total station is protruded outside the frame by means of a drive mechanism, and there is a problem that collimation adjustment of the total station is difficult when protruded.

SUMMARY OF THE INVENTION It is an object of the present invention, in order to solve the above-described problems of the prior art, to provide an installation method in which an automatic collimation total station can be installed in a stable state and does not require collimation adjustment after installation. is.

As a specific means for solving the above-mentioned problems, the present invention is a method for installing an automatic collimation total station installed on a steel frame column when constructing a building using the steel frame column. A metal fitting is attached, a quadrangular prism-shaped total station frame is attached to hold the metal fitting, a total station is attached to the top of the frame via a fixed rod, and a protective cover for the total station is attached to the side of the frame via an arm. An air cylinder is provided between the arm and the pedestal, and a remote control unit is connected to the air cylinder via an air hose to operate the remote control unit on the ground. The present invention provides a method of installing a total station for construction of a steel frame structure, characterized in that a protective cover can be opened and closed by means of the above.

According to the method of installing a total station for steel frame construction according to the present invention, the total station can be installed on permanent steel columns with high rigidity, so high measurement accuracy can be obtained. In addition, the pedestal, protective cover, and total station can be installed on the ground, and the protective cover can be opened and closed remotely, so there is no need to work at high altitudes, so there is an excellent effect of safety and efficiency.

FIG. 4 is a cross-sectional view showing a mounting state of a bracket for mounting a total station for automatically collimating the upper end surface of a steel frame column serving as a reference point according to the embodiment of the present invention; FIG. 4 is a front view showing a state in which a pedestal including a protective cover for a total station is attached to the receiving hardware; It is the front view which showed the part which showed the state which attached the total station to the frame for the same total station in the cross section. It is the perspective view which showed the state which attached the total station to the frame for the same total station. FIG. 4 is an explanatory diagram showing a state in which a protective cover is actuated in a state where the total station is attached to the pedestal for the same total station; It is the side view which showed a part of structure which erects a steel-frame column using a reference point replacement system to a general steel-frame construction floor.

First, referring to drawings showing general embodiments, as shown in FIG. As a point, a plurality of steel columns 51 are erected vertically according to the design drawing, and a steel column 51A as a reference point and a work floor 52 as a floor of the second floor are constructed on the upper part of each steel column 51.
On this work floor 52, a steel frame column 51a and another steel frame column 51b, which serve as reference points for measurement, are vertically mounted on the steel frame column 51A via joints 53, respectively. A total station (TS) 55 for automatic collimation is attached via 54, and the total station 55 measures the erection position of the steel frame for each floor and automatically adjusts the erection.

The present invention relates to a method for installing such an automatic collimating total station on a steel column, and a preferred embodiment will be described with reference to FIGS. 1 to 5. FIG.
As shown in FIG. 1, a metal fitting 3 is attached to a substantially central portion of the upper end surface 2 of the steel frame column 1 . This bracket 3 serves as a base for mounting the total station, and has, for example, a rectangular tubular shape as a whole. A flange-shaped base plate 5 is formed, and this base plate 5 is attached to the central portion of the upper end surface 2 of the steel column 1 with a plurality of bolts 6 .

As shown in FIGS. 2 to 4, a long total station pedestal 7 having a rectangular cylindrical shape is attached to the bracket 3 attached in this way by inserting it on the outer peripheral surface of the bracket 3. As shown in FIGS. Total station protective covers 10 and 11 are attached to the total station frame 7 via a pair of left and right and front and rear arms 8 and 9 on both sides. - barrel station) 13 is attached. The total station pedestal 7 is stably attached to the metal fitting 3 by screwing a plurality of screw members 14 into the screw holes 4 .

The total station protective covers 10 and 11 attached in this way are provided between the arms 8 and 9 attached to the lower side of both sides and the lower end side of the total station frame 7 as shown in FIG. By being pushed upward by the cylinder or air rod 15, the total station 13 is completely wrapped from both sides as indicated by the phantom lines. The total station 13 is completely protected from the elements, even when work cannot be done at night or due to rain.
The air cylinder 15 is capable of remotely opening and closing the total station protective covers 10 and 11 by supplying compressed air from a compressor on the ground through an air hose 16 connected thereto.

Before constructing the standard steel column 1, each of the constituent members described above is properly attached (assembled) to the upper end surface 2 of the permanently installed steel column 1 on the ground, which is dangerous. Not only was it possible to eliminate the need for installation work at high altitudes and greatly improve work efficiency, it also eliminated the need for collimation adjustment after installation. After that, even if the construction floor rises in sequence, for example, the bolts 6 are removed, and the metal fittings 3, the total station frame 7, the total station 13, and the total station protective covers 10, 11 are placed on the upper end surface of the steel frame column that serves as the reference for the upper floors. In the same way, it is possible to construct a steel frame structure efficiently by relocating and attaching it on the ground and relocating the reference point to the upper floor.

A total station installation method for construction of a steel frame structure according to the present invention is a method for installing an automatic collimation total station installed on a steel frame column when constructing a building using the steel frame column. is specified, and a bracket 3 is attached on the steel frame column 1 of the reference point, a square column-shaped total station frame 7 is attached by holding the bracket 3, and a center rod 12 is attached to the top of the frame 7. A total station 13 is mounted on the frame, and protective covers 10 and 11 for the total station are mounted on the side surfaces of the frame 7 via arms 8 and 9 so that they can be opened and closed by remote control. Since the total station 13 that automatically collimates can be installed on the column 1, it is possible to ensure the efficiency of the measurement system at the erection position of other steel columns, and it is possible to easily transfer and install the steel columns sequentially and replace them even on the upper floors. This makes it possible to increase the efficiency of the reference point installation work and eliminates the need for collimation adjustment after installation.

REFERENCE SIGNS LIST 1 steel column 2 upper end surface 3 receiving metal 4 screw hole 5 base plate 6 bolt 7 frame 8, 9 arm 10, 11 protective cover 12 center rod 13 total station 14 screw member 15 air rod or air cylinder 16 air hose

Claims (1)

A method for installing an automatic collimating total station installed on a steel column when constructing a building using the steel column, comprising:
Attach the bracket on the steel column,
Attaching a frame for a square column-shaped total station holding the metal fittings,
A total station is attached to the top of the pedestal via a fixed rod, and a protective cover for the total station is attached to the side of the pedestal via an arm so that it can be opened and closed by remote control ,
An air cylinder is provided between the arm and the pedestal, and a remote control unit is connected to the air cylinder via an air hose,
The protective cover can be opened and closed by operating the remote control unit on the ground.
A method for installing a total station for construction of a steel structure characterized by:

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