JP6195463B2 - building - Google Patents

Description

  The present invention relates to a building having a column beam structure composed of column members and beam members made of precast concrete.

  A technique for constructing a column beam frame by joining precast concrete members to be column members or beam members has been proposed. For example, Patent Document 1 discloses a method of joining precast concrete members together by connecting reinforcing bars protruding from the end faces of the precast concrete members with joint hardware. However, in this joining method, since it is necessary to perform concrete placement at the joining portion of the precast concrete member (between the end faces of the precast concrete member), it takes time for joining work.

  On the other hand, in Patent Document 2, a precast concrete beam is obtained by inserting and fixing a reinforcing bar protruding from the end surface of the other precast concrete beam member into a sleeve embedded in the end portion of one precast concrete beam member. A joining method for joining members together is disclosed. If this joining method is used, since precast concrete members can be joined without performing concrete placing, labor of joining work can be reduced.

  However, the column beam structure that constitutes the outer shell of the building generally needs to have a configuration in which the beam member and the beam member are continuously provided by connecting the beam member to the column member and the beam member. An outer shell having a planar arrangement in an annular shape cannot be constructed only by the joining method of Patent Document 2, and there are beam joining points that require concrete placement.

JP-A-3-212537 Japanese Patent Application Laid-Open No. 2004-346587

  This invention considers the fact which concerns, and makes it a subject to provide the building which can construct | assemble an outer shell only by the operation | work which assembles a precast concrete column member and a precast concrete beam member.

The invention of the first aspect is a building in which a precast concrete column member and a precast concrete beam member are assembled to form an outer shell, and the precast concrete beam member is not part of the outer shell.

In the invention of the first aspect , by removing the precast concrete beam member from a part of the outer shell, the outer shell of the building can be removed only by assembling the precast concrete column member and the precast concrete beam member without performing concrete placing. Can be built.

In the second aspect of the invention, in the building of the first aspect , the precast concrete beam member constituting the outer shell is a spring beam that supports one side of a floor slab.

In the invention of the second aspect , the precast concrete beam member constituting the outer shell is a spring beam that supports one side of the floor slab, so that the column of this portion can be eliminated.

According to a third aspect of the invention, in the building of the first or second aspect , the outer shell has a reinforcing bar protruding upward from the upper surface of the first precast concrete column member in a through hole provided in the first precast concrete beam member. A step of lowering the first precast concrete beam member and placing the first precast concrete beam member on the first precast concrete column member while inserting, an end surface of the first precast concrete beam member; The second precast concrete is inserted into a connection hole provided in an end surface of the second precast concrete beam member or an end surface of the first precast concrete beam member while a reinforcing bar projecting laterally from the end surface of the precast concrete beam member is inserted. Move the beam member to the second precast concrete It is built by assembling method comprising the steps of: placing the second precast concrete beam member on the pillar member.

In the invention of the third aspect , the reinforcing bar of the first precast concrete column member is inserted into the through hole of the first precast concrete beam member in a state where the first precast concrete beam member is placed on the first precast concrete column member. Therefore, the lateral movement of the first precast concrete beam member is restricted, and it is possible to prevent the first precast concrete beam member from being displaced laterally and falling off from the first precast concrete column member.

  Further, the first precast concrete beam member or the second precast is inserted into the connection hole of the second precast concrete beam member or the first precast concrete beam member in a state where the second precast concrete beam member is placed on the second precast concrete column member. Since the rebar of the concrete beam member is inserted, the lateral movement of the second precast concrete beam member is restricted, and the second precast concrete beam member is prevented from being displaced laterally and falling off the second precast concrete column member. be able to. As a result, the outer shell of the building can be assembled safely.

  Since this invention was set as the said structure, an outer shell can be constructed | assembled only by the operation | work which assembles a precast concrete pillar member and a precast concrete beam member.

It is a plane sectional view showing a building concerning an embodiment of the present invention. It is a top view which shows the construction method of the conventional outer shell which concerns on embodiment of this invention. It is side sectional drawing which shows the construction method of the conventional outer shell which concerns on embodiment of this invention. It is a plane sectional view showing the conventional outer shell concerning the embodiment of the present invention. It is a plane sectional view showing a building concerning an embodiment of the present invention. It is explanatory drawing which shows the construction method of the column beam frame which concerns on embodiment of this invention. It is explanatory drawing which shows the construction method of the column beam frame which concerns on embodiment of this invention.

  Embodiments of the present invention will be described with reference to the drawings. First, the building which concerns on embodiment of this invention is demonstrated.

  A plan sectional view of FIG. 1 shows a reinforced concrete building 10 of the present embodiment. In the following description, the long side direction of the building 10 in plan view is the X direction, and the short side direction orthogonal to the X direction is the Y direction. The building 10 includes column members 12, 14, 16, 18, 20, beam members 22, 24, and floor slabs 26, 28 formed of reinforced concrete. The column members 12, 14, the beam member 22, and the floor slabs 26, 28 are made of cast-in-place concrete, and the column members 16, 18, 20, and the beam member 24 are precast concrete members. The beam member 24 is a reverse beam and serves as a handrail for the balcony.

  On the outer periphery of the building 10, an outer shell 38 is constructed in which the column beam frames 30, 32, 34, 36 are arranged in a substantially annular shape in plan view. The column beam frames 30 and 34 are constructed by assembling the column members 16 and 18 and the beam member 24, and are arranged in the X direction. The column beam frame 30 and the column beam frame 34 are arranged to face each other so that the planes of construction are substantially parallel to each other.

  The column beam frames 32 and 36 are constructed by assembling the column member 20 and the beam member 24, and are arranged in the Y direction. The column beam frame 32 and the column beam frame 36 are arranged to face each other so that the planes of construction are substantially parallel to each other.

  In addition, in this embodiment, an outer shell is comprised by the frame arrange | positioned substantially cyclically by planar view, and means the structure constructed | assembled in the outer peripheral part of the building. In addition, assembling the column member and the beam member means that the column members, the beam members, and the column member and the beam member are joined to each other at the joining portion (between joining surfaces) without performing concrete placement.

  The beam member 24 is not provided on the outer edge 40 along the X direction of the floor slab 28 positioned at the four corners of the building 10, and the column beam frames 30 and 34 and the column beam frames 32 and 36 are the beam members 24. Not connected. That is, the beam member 24 is not present in part of the outer shell 38.

  Further, the outer edges 42 along the Y direction of the floor slab 28 located at the four corners of the building 10 are supported by the beam members 24 constituting the outer shell 38. That is, the beam members 24 arranged at the four corners of the building 10 are spring beams that support one side (outer edge 42) of the floor slab 28.

  Next, functions and effects of the building according to the embodiment of the present invention will be described.

  As a general joining method for joining the precast concrete members, there is a method of connecting the reinforcing bars provided in the precast concrete members with a joint hardware. For example, when joining precast concrete beam members, the reinforcing bar protruded from the end face (joint surface) of one precast concrete beam member and the reinforcing bar protruded from the end face (joint surface) of the other precast concrete beam member Are connected to each other with a joint hardware, and the concrete is cast in a joint (between the end face of one precast concrete beam member and the end face of the other precast concrete beam member), thereby joining the precast concrete beam members. However, in this joining method, since it is necessary to place concrete in the joining portion, it takes time for joining work.

  Further, as shown in the plan views of FIGS. 2A to 2D, a method of constructing an outer shell by assembling column beam members 44 and 46 is conceivable. The column beam members 44 and 46 are precast members formed of reinforced concrete, and are configured to include an integrated column portion 48 (including a column beam joint portion) and a beam portion 50. Then, by joining the beam portions 50 by the method shown in FIG. 3, the column beam member 44 and the column beam member 46, and the column beam member 46 and the column beam member 46 are assembled.

  As shown in FIG. 3, a connecting member 52 such as a sleeve is embedded in the upper and lower portions of the end portion of the beam portion 50 (hereinafter referred to as “beam portion 50A”) arranged on the left side. The connecting member 52 is connected to an end portion of the beam reinforcing bar 54 provided in the beam portion 50A, and is provided so as not to protrude from the end surface 56 (joint surface) of the beam portion 50A. Further, from the end surface 58 (joint surface) of the beam portion 50 (hereinafter referred to as “beam portion 50B”) arranged on the right side, the end portions of the beam reinforcing bars 54 provided at the upper and lower portions of the beam portion 50B are provided. It protrudes. The ends of the beam reinforcing bars 54 are inserted into connection holes 60 formed in the connection member 52. For convenience of explanation, the shear reinforcement bars provided on the beam portions 50A and 50B so as to surround the beam reinforcing bars 54 are omitted from the beam portions 50A and 50B in FIG.

  When assembling the column beam member 44 and the column beam member 46 and between the column beam member 46 and the column beam member 46, one of the beam portions 50 to be joined is moved in the lateral direction (arrow 62 or arrow 64) to connect the connection hole 60. The ends of the beam reinforcing bars 54 are inserted into the connecting holes 60, and the connecting holes 60 into which the beam reinforcing bars 54 are inserted are filled with grout (not shown) and hardened to join the beam parts 50 together.

  Here, the assembling work of the column beam members 44 and 46 proceeds in the order of FIGS. 2A, 2B, and 2C, and the column beam is rotated clockwise (arrow 66) and counterclockwise (arrow 68) from the point K. When the members 44 and 46 are assembled and installed, the column beam member 44 is already provided on both sides of the position where the column beam member 46 is finally installed (the position of the column beam member 46 shown by a dotted line in FIG. 2D). , 46 are installed, it is impossible to join the beam portions 50 by moving the column beam member 46 (beam portion 50) installed last in the lateral direction.

  Therefore, the beam part 50 of the column beam member 46 to be installed last must be joined by a joining method that requires placing concrete in the joint part. That is, there are joints that require concrete placement.

  On the other hand, in the building 10 of this embodiment, as shown in FIG. 1, the column beam frames 30 and 34 and the column beam frames 32 and 36 are not connected by the beam member 24. That is, since the beam member 24 is eliminated from a part of the outer shell 38, the outer shell 38 of the building 10 can be obtained only by assembling the column members 16, 18, 20 and the beam member 24 without performing concrete placing. Can be built.

  Further, for example, as shown in the plan sectional view of FIG. 4, when a beam member 70 formed of cast-in-place concrete or precast concrete is provided on the outer edge 40 of the floor slab 28 located at the four corners of the building, generally, The beam member 70 is formed or the beam member 70 is joined by placing high-strength concrete (for example, FC45), whereas the floor slab 28 is formed by placing ordinary concrete (for example, FC27). The In other words, it takes time and effort to separate concrete of different strengths. On the other hand, in the building 10 of the present embodiment, there is no beam member at this portion (outer edge 40), so only the concrete placement of the floor slab 28 may be performed. Therefore, it does not take time and effort to separate concrete.

  Furthermore, the post-installation of the tile on the beam member 24 becomes unnecessary at the location (outer edge 40) of the outer shell 38 where the beam member 24 is not provided, which can contribute to shortening the construction period, safe construction, and rational construction. .

  In addition, for example, the column members 16 constituting the column beam frames 32 and 36 are arranged at the four corners of the building 10 in FIG. 1, and the column members 16 and the column members 16 provided on the column beam frames 30 and 34 are beams. When connected by the member 24, there is a concern that cracks may occur in the beam member 24 when a difference in axial expansion / contraction occurs between the column members 16 connected by the beam member 24. In the building 10 of the form, there is no beam member to be cracked, so there is no need to worry about such a problem.

  Furthermore, in the building 10 according to the present embodiment, the beam member 24 that supports the outer edge 42 of the floor slab 28 located at the four corners of the building 10 is used as a spring-out beam, so that the column at this portion can be eliminated.

  The embodiment of the present invention has been described above.

  In addition, in this embodiment, the example of the building 10 which has the outer shell 38 comprised by the column beam frame 30,32,34,36 which is arrange | positioned substantially cyclically by planar view and not connected by the beam member was shown. However, it has an outer shell constructed on the outer periphery of the building by a frame arranged in a ring shape in plan view, and the beam member is not part of the outer shell (a part of the outer shell is connected by the beam member). It may be a building), and the column beam frame may have any configuration or arrangement.

  For example, in the example shown in FIG. 1, pillar members are not provided at the four corners of the building 10, but pillar members may be provided here. For example, it is good also as buildings 72, 74, 76 as shown to the top view of Fig.5 (a)-(c). The buildings 72, 74, and 76 shown in FIGS. 5A to 5C include a precast concrete column member 78, a precast concrete beam member 80, and a concrete floor slab 82.

  Further, in this embodiment, an example in which the outer shell 38 is configured by including the column beam frames 30, 32, 34, and 36 is shown. However, the column beam frames 30, 32, 34, and 36 use concrete placing. As long as it is not a method (a method of assembling a precast concrete column member and a precast concrete beam member), any method may be used. For example, the column beam frames 30, 32, 34, and 36 may be constructed by the methods shown in FIGS. 6 (a) to 6 (d) and FIGS. 7 (a) to 7 (d).

  6A to 6D show an example of an assembling method for constructing the column beam frames 30 and 34 constituting the outer shell 38 of the building 10. For convenience of explanation, the column members 16 and 18 constituting the lower floor are the column members 16A and 18A, the column members 16 and 18 constituting the upper floor are the column members 16B and 18B, and the beam member 24 arranged in the center is The beam member 24A is a beam member 24B. The beam members 24 arranged on the left and right of the beam member 24A are beam members 24B.

  First, as shown in FIG. 6A, a column reinforcing bar 84 protruding upward from the upper surface of a column member 18A as a first precast concrete column member is provided in a beam member 24A as a first precast concrete beam member. The beam member 24A is lowered while being inserted into the hole 86 (arrow 88), and the beam member 24A is placed on the column member 18A.

  Next, as shown in FIG. 6 (b), the beam reinforcing bar 90 protruding laterally from the end face of the beam member 24A is inserted into the connection hole 92 provided in the end face of the beam member 24B as the second precast concrete beam member. Then, the beam member 24B is moved laterally (arrow 94), and the beam member 24B is placed on the column member 16A as the second precast concrete column member. Then, the connection hole 92 in which the beam reinforcing bar 90 is inserted is filled with grout and cured to join the beam member 24B to the beam member 24A. The connection hole 92 provided in the end surface of the beam member 24B is formed in a connection member (not shown) such as a sleeve embedded in the end of the beam member 24B, and this connection member is provided in the beam member 24B. It is connected to the end of the beam reinforcement (not shown) and is provided so as not to protrude from the end face of the beam member 24B.

  Next, as shown in FIG. 6C, the column reinforcing bar 84 of the column member 18A protruding upward from the upper surface of the beam member 24A is connected to the lower surface of the column member 18B as a third precast concrete column member. The column member 18B is lowered while being inserted into the hole 96 (arrow 98), and the column member 18B is placed on the beam member 24A. Then, the through hole 86 into which the column reinforcing bar 84 is inserted and the connection hole 96 are filled with grout and hardened to join the column member 18B to the column member 18A, thereby integrating the column members 18A, 18B and the beam member 24A. The connection hole 96 provided in the lower surface of the column member 18B is formed in a connection member (not shown) such as a sleeve embedded in the lower part of the column member 18B, and this connection member is provided in the column member 18B. It is connected to the end of the column reinforcement 84 and is provided so as not to protrude from the lower surface of the column member 18B.

  Further, as shown in FIG. 6C, a column reinforcing bar 84 projecting downward from the lower surface of the column member 16B as the fourth precast concrete column member is provided with a through hole 100 provided in the beam member 24B, and the column member 16A. The column member 16B is lowered (arrow 104) while being inserted into the connection hole 102 provided on the upper surface of the plate, and the column member 16B is placed on the beam member 24B. Then, the through holes 100 and the connection holes 102 into which the column reinforcing bars 84 are inserted are filled with grout and cured to join the column member 16B to the column member 16A, thereby integrating the column members 16A and 16B and the beam member 24B. The connection hole 102 provided in the upper surface of the column member 16A is formed in a connection member (not shown) such as a sleeve embedded in the upper part of the column member 16A, and this connection member is provided in the column member 16A. It is connected to the end of the column reinforcement 84 and is provided so as not to protrude from the upper surface of the column member 16A.

  And, in such a column reinforce 84 that protrudes upward from the upper surface of the column member 18A, the column member 18B that is lowered is inserted and the column members 18A and 18B are joined, and the column member 16A, As shown in FIG. 6 (d), the column beam frames 30, 34 are inserted by the reverse insertion joining method in which the column members 16A, 16B are joined by inserting the column reinforcing bars 84 projecting downward from the lower surface of the lowered column member 16B. A part of is formed.

  Thereafter, the column beam frames 30 and 34 are constructed by repeating the operations shown in FIGS. 6A to 6D until a predetermined floor is reached. In FIG. 6B, a beam rebar protruding laterally from the end face of the beam member 24B is inserted into a connection hole provided in the end face of the beam member 24A so as to join the beam member 24A and the beam member 24B. It may be.

  In the method of FIGS. 6A to 6D, the column reinforcing bar 84 of the column member 18A is inserted into the through hole 86 of the beam member 24A in a state where the beam member 24A is placed on the column member 18A. The lateral movement of the beam member 24A is restricted, and the beam member 24A can be prevented from being displaced in the lateral direction and falling off from the column member 18A.

  Further, since the beam rebar 90 of the beam member 24A is inserted into the connection hole 92 of the beam member 24B in a state where the beam member 24B is placed on the column member 16A, the lateral movement of the beam member 24B is restricted, and the beam It is possible to prevent the member 24B from being displaced in the lateral direction and dropping off from the column member 16A.

  Further, since the column rebar 84 of the column member 18A is inserted into the connection hole 96 of the column member 18B in a state where the column member 18B is placed on the beam member 24A, the lateral movement of the column member 18B is restricted, and the column It is possible to prevent the member 18B from being displaced laterally and dropping off from the beam member 24A.

  Further, since the column reinforcement 16 of the column member 16B is inserted into the connection hole 102 of the column member 16A in a state where the column member 16B is placed on the beam member 24B, the lateral movement of the column member 16B is restricted, and the column It is possible to prevent the member 16B from shifting in the lateral direction and dropping off from the beam member 24B.

  FIGS. 7A to 7D show an example of an assembling method for constructing the column beam frames 32 and 36 constituting the outer shell 38 of the building 10. For convenience of explanation, the pillar member 20 constituting the lower floor is designated as the pillar members 20A and 20B, the pillar member 20 constituting the upper floor is designated as the pillar members 20C and 20D, and the precast concrete beam members arranged on the left and right are the beam members 24C. , 24D. In this assembling method, the beam members 24 for three spans of the column beam members 32 and 36 (see FIG. 1) are formed by the joined beam members 24C and 24D.

  First, as shown in FIG. 7A, a column rebar 110 that protrudes upward from the upper surface of a column member 20A as a first precast concrete column member arranged on the left side is a beam member 24C as a first precast concrete beam member. The beam member 24C is lowered (arrow 108) while being inserted into the through-hole 106 provided in the beam, and the beam member 24C is placed on the column member 20A.

  Next, as shown in FIG. 7B, the beam reinforcing bar 112 protruding laterally from the end face of the beam member 24C is inserted into the connection hole 114 provided on the end face of the beam member 24D as the second precast concrete beam member. Then, the beam member 24D is moved laterally (arrow 116), and the beam member 24D is placed on the column member 20B as the second precast concrete column member arranged on the right side. Then, the connection hole 114 into which the beam reinforcing bar 112 is inserted is filled with grout and cured to join the beam member 24D to the beam member 24C. The connection hole 114 provided in the end face of the beam member 24D is formed in a connection member (not shown) such as a sleeve embedded in the end of the beam member 24D, and this connection member is provided in the beam member 24D. It is connected to the end of the beam reinforcing bar (not shown) and is provided so as not to protrude from the end surface of the beam member 24D.

  Next, as shown in FIG. 7C, the column reinforcing bar 110 of the column member 20A protruding upward from the upper surface of the beam member 24C is connected to the lower surface of the column member 20C as a third precast concrete column member. The column member 20C is lowered while being inserted into the hole 120 (arrow 122), and the column member 20C is placed on the beam member 24C. Then, the through hole 106 and the connection hole 120 into which the column reinforcing bar 110 is inserted are filled with grout and hardened to join the column member 20C to the column member 20A, and the column members 20A and 20C and the beam member 24C are integrated. The connection hole 120 provided in the lower surface of the column member 20C is formed in a connection member (not shown) such as a sleeve embedded in the lower portion of the column member 120C, and this connection member is provided in the column member 20C. It is connected to the end of the column reinforcement 110 and is provided so as not to protrude from the lower surface of the column member 20C.

  Further, as shown in FIG. 7C, a column reinforcing bar 110 projecting downward from the lower surface of the column member 20D as the fourth precast concrete column member is provided with a through hole 124 provided in the beam member 24D and the column member 20B. The column member 20D is lowered while being inserted into the connection hole 126 provided on the upper surface (arrow 128), and the column member 20D is placed on the beam member 24D. Then, the through hole 124 and the connection hole 126 into which the column reinforcing bars 110 are inserted are filled with grout and cured to join the column member 20D to the column member 20B, thereby integrating the column members 20B and 20D and the beam member 24D. The connection hole 126 provided in the upper surface of the column member 20B is formed in a connection member (not shown) such as a sleeve embedded in the upper part of the column member 20B, and this connection member is provided in the column member 20B. It is connected to the end of the column reinforcement 110 and is provided so as not to protrude from the upper surface of the column member 20B.

  And, in such a column rebar 110 protruding upward from the upper surface of the column member 20A, the column member 20C that has been lowered and the column member 20A, 20C is joined, and the column member 20B, As shown in FIG. 7 (d), the column beam frames 32, 36 are inserted by a reverse insertion joining method in which the column members 20B, 20D are joined by inserting the column reinforcing bars 110 projecting downward from the lower surface of the lowered column member 20D. A part of is formed.

  Thereafter, the column beam frames 32 and 36 are constructed by repeating the operations shown in FIGS. 7A to 7D until a predetermined floor is reached. In FIG. 7B, a beam rebar protruding laterally from the end face of the beam member 24D is inserted into a connection hole provided in the end face of the beam member 24C so as to join the beam member 24C and the beam member 24D. It may be.

  In the method of FIGS. 7A to 7D, the column reinforcing bar 110 of the column member 20A is inserted into the through hole 106 of the beam member 24C in a state where the beam member 24C is placed on the column member 20A. The lateral movement of the beam member 24C is restricted, and the beam member 24C can be prevented from being displaced in the lateral direction and falling off from the column member 20A.

  Further, since the beam rebar 112 of the beam member 24C is inserted into the connection hole 114 of the beam member 24D in a state where the beam member 24D is placed on the column member 20B, the lateral movement of the beam member 24D is restricted, and the beam It is possible to prevent the member 24D from shifting laterally and dropping off from the column member 20B.

  Further, since the column rebar 110 of the column member 20A is inserted into the connection hole 120 of the column member 20C in a state where the column member 20C is placed on the beam member 24C, the lateral movement of the column member 20C is restricted, and the column It is possible to prevent the member 20C from being displaced laterally and falling off from the beam member 24C.

  Further, since the column rebar 110 of the column member 20D is inserted into the connection hole 126 of the column member 20B with the column member 20D placed on the beam member 24D, the lateral movement of the column member 20D is restricted, and the column It is possible to prevent the member 20D from shifting laterally and dropping off from the beam member 24D.

  As shown in FIGS. 6 (a) to (d) and FIGS. 7 (a) to (d), if a column beam frame is constructed by an assembling method using both a forward insertion method and a reverse insertion method, a beam member is obtained. Can be prevented from falling off the pillar member, and the pillar member can be prevented from falling off the beam member, so that the outer shell of the building can be assembled safely.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to such embodiment at all, Of course, in the range which does not deviate from the summary of this invention, it can implement in a various aspect.

10, 72, 74, 76 Building 16, 18, 20 Column member (Precast concrete column member)
24 Beam members (Precast concrete beam members)
38 Outer shell 84, 110 Column reinforcement (rebar)
86, 106 Through hole 90, 112 Beam reinforcement (rebar)
92, 114 Connection hole

Claims (2)

One precast concrete beam member is moved laterally and placed on one precast concrete column member, and another precast placed on another precast concrete column member adjacent to the one precast concrete column member In the state where the outer shell is constructed on the outer periphery by performing the process of joining to the concrete beam member,
A building in which the precast concrete beam member is not part of the outer periphery where the outer shell is disposed . The method of assembling the outer shell of the building according to claim 1,
The first precast concrete column member is lowered by inserting a reinforcing bar protruding upward from the upper surface of the first precast concrete column member into a through hole provided in the first precast concrete beam member, and the first precast concrete column member is lowered. Placing the first precast concrete beam member on the member;
Reinforcing bars that project laterally from the end face of the first precast concrete beam member or the end face of the second precast concrete beam member are provided on the end face of the second precast concrete beam member or the end face of the first precast concrete beam member. Placing the second precast concrete beam member on the second precast concrete column member by laterally moving the second precast concrete beam member while being inserted into the hole;
Assembling method.

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