Method of constructing a structural frame

Abstract

This invention provides a method for constructing a structural frame that can shorten the construction period. [Solution] The system comprises a unit manufacturing step of manufacturing multiple plate-shaped units 6 off-site by connecting multiple plate-shaped bodies 2, a unit installation step of installing the multiple plate-shaped units 6 on-site, and a connection step of connecting adjacent pairs of plate-shaped units 6A, which are the connection target units 6A, on-site with a connecting plate-shaped body 7.

Description

Technical Field

[0001] The present invention relates to a method for constructing a structure formed by connecting a plurality of plate-like bodies in an intersecting state.

Background Art

[0002] There is known a structure formed by connecting a plurality of plate-like bodies in an intersecting state (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Although it is conceivable to construct such a structure formed by connecting a plurality of plate-like bodies in an intersecting state as a structure installed at the column head of a column or the like at a construction site, there are problems that there are many on-site (construction site) operations and it is difficult to shorten the construction period.

[0005] In view of this situation, the main problem of the present invention is to provide a method for constructing a structure capable of shortening the construction period.

Means for Solving the Problems

[0006] The first characteristic configuration of the present invention is a method for constructing a structure formed by connecting a plurality of plate-like bodies in an intersecting state, a unit manufacturing step of connecting the plurality of plate-like bodies to manufacture a plurality of plate-like body units off-site, a unit installation step of installing the plurality of plate-like body units on-site, and a connecting step of connecting, on-site, pairs of adjacent plate-like body units, which are connection target units, among the plurality of plate-like body units with a connecting plate-like body.

[0007] According to this configuration, when constructing the frame, multiple plate-shaped units are manufactured off-site in advance during the unit manufacturing process, these multiple plate-shaped units are installed on-site during the unit installation process, and adjacent pairs of plate-shaped units (units to be connected) can be connected with connecting plate-shaped parts during the connection process. This reduces on-site work and shortens the construction period for building the frame.

[0008] A second characteristic configuration of the present invention is that each of the pair of connecting units is provided with an upward-opening recess, The connecting plate-like body is provided with a downward-opening recess in its longitudinal middle portion that fits into each of the upward-opening recesses, In the aforementioned connection process, the connecting plate-like body is inserted into the pair of connecting units from above, and the lower-opening recess of the connecting plate-like body is fitted into the upper-opening recess of each of the pair of connecting units.

[0009] With this configuration, the intermediate portion of the connecting plate-like body can be attached to a pair of connecting units simply by inserting the connecting plate-like body into the unit to be connected from above, thereby further improving the efficiency of construction work for the frame.

[0010] A third characteristic feature of the present invention is that, in the connection process, both ends of the connecting plate-like body are joined to the respective side surfaces of the pair of connecting units by fillet welding.

[0011] With this configuration, both ends of the connecting plate-like body are joined to the respective sides of the pair of connecting units by fillet welding. This allows the welding joint to be adjusted to an appropriate location without depending on the manufacturing precision of the pair of connecting units, and thus absorbs manufacturing errors of the pair of connecting units. [Brief explanation of the drawing]

[0012] [Figure 1] Plan view of the structural frame [Figure 2] Diagram showing the state after the unit installation process has been completed. [Figure 3] Diagram showing the state during the coupling process. [Figure 4] Diagram showing the state after the coupling process has been completed. [Figure 5] A diagram showing a plate-shaped piece and the plate-shaped elements that make up the plate-shaped piece. [Figure 6] Flowchart for constructing a structural frame [Figure 7] A diagram showing the state during the coupling process in another embodiment. [Figure 8] A diagram showing the state after the coupling process in another embodiment. [Modes for carrying out the invention]

[0013] An embodiment of the method for constructing a frame structure according to the present invention will be described based on the drawings. Figure 1 is a plan view showing a part of the frame structure 3 constructed by the construction method of the frame structure 3. The frame structure 3 is formed horizontally by connecting a plurality of plate-like bodies 2 in an intersecting manner, and the frame structure 3 formed in this manner is installed on the column heads of the columns 4 to construct the frame structure 1 at the construction site. In this embodiment, the frame structure 3 is constructed by connecting a plurality of plate-like bodies 2 in an intersecting manner along the horizontal direction, and is formed in a flat shape along the horizontal direction.

[0014] As shown in Figure 6, the construction method for the frame 3 comprises a unit manufacturing process S1, a unit installation process S2, and a connection process S3. The unit manufacturing process S1 is the process of manufacturing multiple plate-like units 6 (see Figures 1 and 2) off-site by connecting multiple plate-like bodies 2. The unit installation process S2 is the process of installing multiple plate-like units 6 on-site by joining them to columns 4, as shown in Figure 2. The connection process S3 is the process of connecting adjacent pairs of plate-like units 6A, which are the connection target units 6A, on-site with connecting plate-like bodies 7, as shown in Figure 1.

[0015] In this embodiment, as shown in FIG. 6, after performing the unit manufacturing process S1 for manufacturing a plurality of plate-like body units 6, the unit installation process S2 for installing the plurality of plate-like body units 6 is performed, and then the connection process S3 for connecting the connection target units 6A to each other is performed, and the unit manufacturing process S1, the unit installation process S2, and the connection process S3 are performed in the described order.

[0016] Next, explanations will be added to each of the processes of the unit manufacturing process S1, the unit installation process S2, and the connection process S3.

[0017] (Unit manufacturing process S1) In the unit manufacturing process S1, as shown in FIG. 5, a plurality of plate-like body pieces 9 are manufactured by combining a plurality of plate-like bodies 2, and as shown in FIG. 2, a plate-like body unit 6 is manufactured by combining the plurality of plate-like body pieces 9. In FIG. 2, the main parts of a pair of plate-like body units 6 arranged in the left-right direction on the drawing are shown, and one plate-like body piece 9 is shown surrounded by a broken line.

[0018] As shown in FIG. 5, there are a plurality of types of plate-like bodies 2 used when manufacturing the plate-like body pieces 9. In this embodiment, the plate-like bodies 2 include four types of plate-like bodies: the first plate-like body 2A, the second plate-like body 2B, the third plate-like body 2C, and the fourth plate-like body 2D. As shown in FIG. 5, in each of the plurality of types of plate-like bodies 2, an upward-opening recess 11 that is recessed downward from the upper end of the plate-like body 2 toward the lower side Z2 and has an upward-opening shape, and a downward-opening recess 12 that is recessed upward from the lower end of the plate-like body 2 toward the upper side Z1 and has a downward-opening shape are appropriately formed. The downward-opening recess 12 is configured to be fitted into the upward-opening recess 11 of another plate-like body 2 from the upper side Z1.

[0019] Specifically, downward-opening recesses 12 are formed at both ends in the longitudinal direction X of the first plate-like body 2A, and downward-opening recesses 12 and upward-opening recesses 11 are formed in the middle portion in the longitudinal direction X. Upward-opening recesses 11 are formed at both ends in the longitudinal direction X of the second plate-like body 2B, and two upward-opening recesses 11 are formed in the middle portion in the longitudinal direction X. The third plate-like body 2C has an upward-opening recess 11 at one end in the longitudinal direction X (left side in Figure 5), a downward-opening recess 12 at the other end in the longitudinal direction X (right side in Figure 5), and both the downward-opening recess 12 and the upward-opening recess 11 are formed in the middle portion in the longitudinal direction X. The fourth plate-like body 2D has an upward-opening recess 11 at one end in the longitudinal direction X, a downward-opening recess 12 at the other end in the longitudinal direction X, and both the upward-opening recess 11 and the downward-opening recess 12 are formed in the middle portion in the longitudinal direction X.

[0020] In the unit manufacturing process S1, the production of the plate-like body piece 9 using multiple plate-like bodies 2 is performed by sequentially fitting the multiple plate-like bodies 2 from the top side Z1. In this embodiment, five plate-like bodies 2 are used to manufacture one plate-like piece 9: two first plate-like bodies 2A, one second plate-like body 2B, one third plate-like body 2C, and one fourth plate-like body 2D. The plate-like piece 9 is manufactured by fitting the first first plate-like body 2A, the second first plate-like body 2A, the fourth plate-like body 2D, and the third plate-like body 2C into the second plate-like body 2B in that order, starting from the top Z1 and appropriately inverting them vertically as needed. In this way, in the unit manufacturing process S1, the plate-shaped piece 9 is manufactured by sequentially fitting together five plate-shaped bodies 2 of four different types from the top side Z1.

[0021] Then, in the unit manufacturing process S1, the plate-shaped unit 6 is manufactured by fitting the lower-opening recess 12 of one plate-shaped piece 9 into the upper-opening recess 11 of another plate-shaped piece 9 from above Z1 to create the plate-shaped unit 6. To elaborate, each plate-shaped piece 9 has an upper-opening recess 11 (such as the upper-opening recess 11 of the second plate-shaped piece 2B or the upper-opening recess 11 of the fourth plate-shaped piece 2D) and a lower-opening recess 12 (such as the lower-opening recess 12 of the first plate-shaped piece 2A or the lower-opening recess 12 of the third plate-shaped piece 2C) that were not used when manufacturing the plate-shaped piece 9. Two plate-shaped pieces 9 are combined by fitting the lower-opening recess 12 of another plate-shaped piece 9 into the upper-opening recess 11 of one plate-shaped piece 9 from the upper side Z1, and so on. A plate-shaped unit 6 is manufactured by sequentially fitting multiple plate-shaped pieces 9 from the upper side Z1. The plate-shaped unit 6 is manufactured to a size that allows for transport from off-site to on-site.

[0022] Furthermore, at the edges of the plate-like unit 6, for example, a plate-like unit 6 with a desired outer shape may be manufactured by cutting the edges of a plate-like unit 6 made by combining multiple plate-like pieces 9, or a plate-like unit 6 with a desired outer shape may be manufactured by combining plate-like pieces 2 that have been cut in advance according to the outer shape of the plate-like unit 6.

[0023] (Unit installation process S2) In the unit installation process S2, as shown in Figure 2, the plate-shaped unit 6 is attached to the upper end of the column 4 and installed. The plate-like unit 6 is constructed by connecting multiple plate-like bodies 2 in an intersecting manner, forming a polygonal space (triangular or hexagonal in this embodiment) in plan view. The top of a column 4 is inserted into one of the polygonal spaces (hexagonal in this embodiment), and the top of the column 4 and the plate-like body 2 are joined using a plate-shaped connecting member 13 that is oriented vertically to install the plate-like unit 6. In this embodiment, a plate-shaped reinforcing member 10 is further reinforced by joining it horizontally across the top of the column 4, the plate-like body 2, and the connecting member 13. In Figures 1 and 2, the reinforcing member 10 is shown in black to clearly distinguish it from the surrounding area.

[0024] (Connection process S3) As shown in Figures 1 to 4, in the connection process S3, the units to be connected 6A are connected by a connecting plate-like body 7. The units to be connected 6A are a pair of plate-like body units 6 connected by the connecting plate-like body 7, and these pairs of plate-like body units 6 are located adjacent to each other. Figures 1 and 2 are plan views showing the main parts of the frame structure 3, and Figures 3 and 4 are perspective views showing even more main parts of the frame structure 3. Figures 2 and 3 show the state before the downward-opening recesses 12 of the connecting plate-like body 7 are fitted into the upward-opening recesses 11 of each of the pair of connecting units 6A, while Figures 1 and 4 show the state after the downward-opening recesses 12 of the connecting plate-like body 7 are fitted into the upward-opening recesses 11 of each of the pair of connecting units 6A. In this embodiment, as shown in Figure 2, a pair of connecting target units 6A are connected using multiple connecting plate-like bodies 7, but in Figures 3 and 4, only one of the multiple connecting plate-like bodies 7 is shown.

[0025] Each of the pair of connecting units 6A is provided with an upward-opening recess 11, and the connecting plate-like body 7 is provided with a downward-opening recess 12 in the middle portion of its longitudinal direction X that fits into the upward-opening recess 11. In the connecting process S3, the connecting plate-like body 7 is inserted into the pair of connecting units 6A from above Z1, so that the downward-opening recess 12 of the connecting plate-like body 7 fits into the upward-opening recess 11 of each of the pair of connecting units 6A.

[0026] Specifically, as shown in Figure 3, the connecting plate-like body 7 has two downward-opening recesses 12 formed in the middle portion in the longitudinal direction X. The pair of connecting target units 6A have upward-opening recesses 11 that were not used when manufacturing the plate-like body unit 6. The two downward-opening recesses 12 of the connecting plate-like body 7 are fitted into the respective upward-opening recesses 11 of the pair of connecting target units 6A from above Z1, thereby fitting the downward-opening recesses 12 of the connecting plate-like body 7 into the respective upward-opening recesses 11 of the pair of connecting target units 6A. Incidentally, in the connecting unit 6A on the right side of Figure 3, the upward-opening recess 11 located at the end of the second plate-like body 2B corresponds to the upward-opening recess 11 provided in the connecting unit 6A, and in the connecting unit 6A on the left side of Figure 3, the upward-opening recess 11 located at the end of the fourth plate-like body 2D corresponds to the upward-opening recess 11 provided in the connecting unit 6A.

[0027] In connection step S3, in addition to fitting the middle portion of the connecting plate-like body 7 in the longitudinal direction X into each of the pair of connecting units 6A, both ends of the connecting plate-like body 7 are joined to the respective sides of the pair of connecting units 6A by fillet welding. This fillet welding forms a fillet weld 14 across the end of the connecting plate-like body 7 and the side of the connecting unit 6A, as shown in Figure 4. The end of the connecting plate-like body 7 is welded to the side surface of the third plate-like body 2C of the unit 6A to be connected. Normally, an upward-opening recess 11 (see Figure 3) is formed at the predetermined location on the third plate-like body 2C where it is welded. However, in this embodiment, the third plate-like body 2C to be welded is a plate-like body 2 that does not have an upward-opening recess 11 formed at the location to be welded, so that the upward-opening recess 11 does not get in the way when the end of the connecting plate-like body 7 is welded to the side surface of the unit 6A to be connected. In this way, in the connection process S3, the intermediate portion of the connecting plate-like body 7 is fitted into the pair of connecting target units 6A, and both ends of the connecting plate-like body 7 are fillet welded to the pair of connecting target units 6A, thereby connecting the connecting target units 6A with the connecting plate-like body 7.

[0028] The upper-opening recess 11 and the lower-opening recess 12 are configured to pivot around an axis along the vertical direction Z from a predetermined position (a position tilted 60° relative to each other) when fitted together. Therefore, even if the relative positional relationship between the pair of connecting units 6A is slightly off due to manufacturing errors, the lower-opening recess 12 in the middle of the connecting plate-like body 7 can be fitted into the respective upper-opening recess 11 of the pair of connecting units 6A, absorbing the manufacturing errors of the pair of connecting units 6A. Furthermore, even when the connecting plate-like body 7 is fitted in a position that deviates from the predetermined position, the ends of the connecting plate-like body 7 can be connected to the pair of connecting units 6A while absorbing the relative positional misalignment by welding the ends of the connecting plate-like body 7 to desired positions on the sides of the plate-like body 2, rather than fitting them to the pair of connecting units 6A from above Z1.

[0029] As described above, by constructing the frame 3 through a unit manufacturing process S1 in which multiple plate-like bodies 2 are connected to produce multiple plate-like body units 6 off-site, a unit installation process S2 in which multiple plate-like body units 6 are joined to columns 4 and installed on-site, and a connection process S3 in which adjacent pairs of plate-like body units 6A, which are the connection target units 6A, are connected with connecting plate-like bodies 7, work efficiency can be improved and the construction period for constructing the frame 3 can be shortened.

[0030] [Another embodiment] Other embodiments of the present invention will now be described. Note that the configurations of each embodiment described below are not limited to being applied individually, but can also be applied in combination with the configurations of other embodiments.

[0031] (1) In the above embodiment, a configuration was described in which both ends of the connecting plate-like body 7 are joined to the respective sides of the pair of connecting units 6A by fillet welding. However, the connecting plate-like body 7 may also be provided with downward-opening recesses 12 at both ends, and the downward-opening recesses 12 at both ends of the connecting plate-like body 7 may be fitted into the upward-opening recesses 11 provided on the connecting unit 6A.

[0032] (2) In the above embodiment, a configuration in which the unit installation process S2 is performed followed by the connection process S3 was described as an example, but the order in which the unit installation process S2 and the connection process S3 are performed may be changed as appropriate. For example, the unit installation process S2 and the connection process S3 may be performed in parallel by sequentially installing a plurality of plate-shaped units 6 and connecting the installed plate-shaped units 6 (units to be connected 6A) with the connecting plate-shaped body 7, or the unit installation process S2 may be performed after the connection process S3 by installing a plurality of plate-shaped units 6 connected with the connecting plate-shaped body 7 on-site. [Explanation of Symbols]

[0033] 2 Plate-like bodies 3 Frame structure 4 pillars 6 Plate-shaped unit 6A Units to be connected 7. Connecting plate-shaped body 11 Upper opening recess 12 Downward-opening recess S1 Unit Manufacturing Process S2 Unit Installation Process S3 connection process

Claims

1. A method for constructing a frame structure formed by connecting multiple plate-like bodies in an intersecting manner, A unit manufacturing process for manufacturing multiple plate-like units off-site by connecting multiple plate-like bodies, A unit installation step involves installing the aforementioned plurality of plate-shaped units on-site, A method for constructing a frame, comprising a connection step of connecting two adjacent plate-shaped units, which are the units to be connected, on-site with a connecting plate.

2. Each of the pair of connecting units is provided with an upward-opening recess, The connecting plate-like body is provided with a downward-opening recess in its longitudinal middle portion that fits into each of the upward-opening recesses, A method for constructing a frame according to claim 1, wherein in the connection step, the connecting plate-like body is inserted into the pair of units to be connected from above, and the lower-opening recess of the connecting plate-like body is fitted into the upper-opening recess of each of the pair of units to be connected.

3. A method for constructing a frame according to claim 1 or 2, wherein in the connection step, both ends of the connecting plate-like body are joined to the respective sides of the pair of units to be connected by fillet welding.

Images