JP6414679B2 - Column beam frame structure, method of building column beam frame structure - Google Patents

Description

  The present invention relates to a column beam frame structure in a reinforced concrete (RC) structure such as a super high-rise apartment building, a method for constructing the column beam frame structure, and a PCa member used for the column beam frame structure, and in particular, precast concrete (hereinafter referred to as PCa). The present invention relates to a column beam frame structure made of a column PCa member and a beam PCa member, a method for constructing the column beam frame structure, and a PCa member used for the column beam frame structure.

  Conventionally, the following construction methods (A), (B), and (C) are known as a general construction method for constructing a structural frame of a column beam frame composed of a column PCa member and a large beam PCa member.

(A) In this construction method, as shown in FIG. 13 (a), a mechanical joint 3 for the beam main reinforcing bar 2 of the large beam PCa member 1 is provided in the column panel zone 5 above the column PCa member 4, and the column panel zone 5 is constructed with cast-in-place concrete. Note that the column main reinforcement 6 protrudes from the upper surface of the column PCa member 4 toward the column panel zone 5. The code | symbol G in a figure has shown the grout construction location. This construction method has a high construction difficulty level because the mechanical joint 3 for the main beam of the main beam is in the column panel zone 5. Moreover, since the upper-layer pillar PCa member is attached to the upper side of the pillar panel zone 5, it is necessary to develop the initial strength of the cast-in-place concrete.

(B) In this construction method, as shown in FIG. 13 (b), the upper part of the column PCa member 7 constitutes a column panel zone. The beam main reinforcement 2 projecting laterally from the upper side surface of the column PCa member 7 and the beam main reinforcement 2 of the large beam PCa member 1 are connected by a mechanical joint 3, and this portion is constructed by cast-in-place concrete. The column main reinforcement 6 protrudes from the upper surface of the column PCa member 7. Since this method has many girder joints, there are also many places for formwork on the cast-in-place concrete part.

(C) In this construction method, as shown in FIG. 13 (c), the large beam PCa member 8 takes a form called a so-called lotus root PCa, and a vertical through-hole 9 is formed in the central part constituting the column panel zone. A plurality are provided. The column main reinforcement 6 protrudes from the upper surface of the column PCa member 4. The large beam PCa member 8 is dropped from above the column PCa member 4 and the column main reinforcement 6 is inserted into the through hole 9. The beam main reinforcing bars 2 of the adjacent large beam PCa members 8 are connected to each other by a mechanical joint 3, and this portion is constructed by cast-in-place concrete. Compared with the above-mentioned method (B), this construction method has 50% of the joint locations of the main beam main bars, so the number of places where the formwork is applied to the cast-in-place concrete portion is also 50%. This method has a high degree of difficulty in producing PCa and a high degree of difficulty in injecting grout. Moreover, since the grout construction site is doubled compared to the above-mentioned methods (i) and (b), there is a high possibility of becoming a bottleneck in the case of ultra-short construction period construction.

  On the other hand, as other conventional techniques related to column beam frames, for example, techniques shown in Patent Documents 1 to 6 are known.

JP 2007-63926 A Japanese Patent No. 5205131 Japanese Patent No. 3837390 Japanese Patent No. 4080945 Japanese Patent No. 4496023 Japanese Patent No. 4781687

  By the way, there has been a demand for a technique that can solve the problems of the above-described conventional general construction methods (A), (B), and (C). That is, there has been a demand for the development of a technique that enables relatively short construction work while making the PCa member relatively easy, saving labor in formwork and grouting work.

  The present invention has been made in view of the above, and it is relatively easy to manufacture a PCa member, can save labor in formwork and grouting, and can be constructed with a super-short construction period. An object of the present invention is to provide a method for constructing a column beam frame structure and a PCa member.

  In order to solve the above-described problems and achieve the object, the column beam frame structure according to the present invention is a column beam frame structure of a reinforced concrete structure, and includes a reinforcing bar protruding upward from the upper surface and an inner surface from the lower surface. A first pillar PCa member made of precast concrete having an insertion hole extending upwardly toward the upper side, a reinforcing bar protruding laterally from the upper side surface, an insertion hole extending downwardly from the upper surface toward the inside, and a lower surface A second pillar PCa member made of precast concrete having a reinforcing bar protruding downward, and a reinforcing bar protruding laterally from the lower side surface, an insertion hole extending laterally from one side end surface to the inside, and the other A beam PCa member made of precast concrete having a reinforcing bar protruding laterally from the side end face of the steel plate, and a reinforcing bar protruding laterally of the first column PCa member is inserted into the insertion hole of the beam PCa member The beam PCa member rebar and the second column PCa member protruding sideways are joined via a joint, and the beam PCa member and the second column PCa member are joined with cast-in-place concrete. It is characterized by.

  Further, the other column beam frame structure according to the present invention is a column beam frame structure of a reinforced concrete structure, a reinforcing bar protruding upward from the upper surface, an insertion hole extending upward from the lower surface toward the inside, A first pillar PCa member made of precast concrete having a reinforcing bar protruding laterally from the upper side, an insertion hole extending downward from the upper surface toward the inside, a reinforcing bar protruding downward from the lower surface, and a lower side surface A second pillar PCa member made of precast concrete having a reinforcing bar protruding laterally from the side, an insertion hole extending laterally from one side end face toward the inside, and a reinforcing bar protruding sideward from the other side end face And a beam PCa member made of precast concrete with a reinforcing bar protruding from the side of the second column PCa member inserted in the insertion hole of the beam PCa member, and the reinforcing bar of the beam PCa member and the first column A rebar projecting laterally of Ca member joined via a joint, characterized in that joining between the beam PCa member and first columnar PCa member in poured concrete.

  Further, in the other column beam frame structure according to the present invention, in the above-described invention, the reinforcing bar protruding above the first pillar PCa member on the lower floor is inserted into the insertion hole on the lower surface of the first pillar PCa member on the upper floor. It is arranged, and a reinforcing bar protruding below the second pillar PCa member on the upper floor is inserted and disposed in the insertion hole on the upper surface of the second pillar PCa member on the lower floor.

  Moreover, the construction method of the column beam frame structure according to the present invention is a method of building the above-mentioned column beam frame structure, and moves the beam PCa member to the side toward the first column PCa member that is installed in advance. The first step of inserting the reinforcing bar protruding from the side of the first column PCa member into the insertion hole of the beam PCa member and connecting the beam PCa member to the side surface of the first column PCa member is performed in advance. By moving the second pillar PCa member on the upper floor from above toward the second pillar PCa member on the lower floor, the second pillar PCa on the upper floor is inserted into the insertion hole on the upper surface of the second pillar PCa member on the lower floor. A second step of inserting a reinforcing bar protruding below the member and installing the second pillar PCa member on the upper floor on the upper surface of the second pillar PCa member on the lower floor, and a beam connected to the side surface of the first pillar PCa member Installed on the upper surface of the second pillar PCa member on the lower floor with the reinforcing bars protruding to the side of the PCa member A reinforcing bar projecting to the side of the second pillar PCa member on the upper floor is joined via a joint, and a third part is joined between the beam PCa member and the second pillar PCa member on the upper floor with cast-in-place concrete. And a process.

  In addition, another column beam frame construction method according to the present invention is a method for building the above-mentioned column beam frame structure, in which the beam PCa member is laterally directed toward the second column PCa member that is installed in advance. A first step of inserting and arranging a reinforcing bar protruding to the side of the second column PCa member in the insertion hole of the beam PCa member and connecting the beam PCa member to the side surface of the second column PCa member; By moving the first pillar PCa member on the upper floor from above toward the first pillar PCa member on the lower floor, the first pillar PCa member on the lower floor is inserted into the insertion hole on the lower surface of the first pillar PCa member on the upper floor. Reinforcing bars protruding above the column PCa member are inserted and arranged, and the second step of installing the first column PCa member on the upper floor on the upper surface of the first column PCa member on the lower floor is connected to the side surface of the second column PCa member. On the upper surface of the first pillar PCa member on the lower floor The rebar projecting to the side of the placed first column PCa member on the upper floor is joined via a joint, and the beam PCa member and the first column PCa member on the upper floor are joined with cast-in-place concrete. Including three steps.

  Moreover, the construction method of the other column beam frame structure according to the present invention is characterized in that, in the above-described invention, the second step and the third step are performed after the first step.

  Moreover, the construction method of the other column beam frame structure according to the present invention is characterized in that, in the above-described invention, the first pillar PCa member on the lower floor is installed in accordance with the timing of placing the floor concrete.

  Further, the PCa member according to the present invention is a PCa member used as a column of the above-mentioned column beam structure, and includes a reinforcing bar protruding upward from the upper surface, an insertion hole extending upward from the lower surface toward the inside, Precast concrete having a reinforcing bar protruding from the side to the side, or an insertion hole extending downward from the upper surface toward the inside, a reinforcing bar protruding downward from the lower surface, and a reinforcing bar protruding from the lower side surface to the side It is characterized by comprising precast concrete having

  In addition, another PCa member according to the present invention is a PCa member used as a beam of the above-mentioned column beam frame structure, and includes an insertion hole extending laterally from one side end surface to the inside, and the other side end surface. It is made of precast concrete having a reinforcing bar projecting sideways.

  The column beam frame structure according to the present invention is a column beam frame structure of a reinforced concrete structure, and includes a reinforcing bar that protrudes upward from the upper surface, an insertion hole that extends upward from the lower surface toward the inside, A first pillar PCa member made of precast concrete having a reinforcing bar protruding laterally from the side, an insertion hole extending downward from the upper surface toward the inside, a reinforcing bar protruding downward from the lower surface, and a side from the lower side surface A second pillar PCa member made of precast concrete having a reinforcing bar protruding in the direction, an insertion hole extending laterally from one side end surface toward the inside, and a reinforcing bar protruding sideways from the other side end surface A beam PCa member made of precast concrete and having a reinforcing bar protruding from the side of the first column PCa member inserted in the insertion hole of the beam PCa member, and the reinforcing bar of the beam PCa member and the second column PC Since the reinforcing bars projecting to the side of the member are joined via joints, the beam PCa member and the second column PCa member are joined with the cast-in-place concrete, so the above-mentioned conventional general construction method (A), Compared to (b) and (c), it is relatively easy to manufacture PCa members, and it is possible to save labor in formwork and grouting work for joints, and to implement ultra-short-term construction. There is an effect that it is possible.

  Moreover, according to another column beam frame structure according to the present invention, the column beam frame structure of the reinforced concrete structure has a reinforcing bar protruding upward from the upper surface and an insertion hole extending upward from the lower surface toward the inside. A first pillar PCa member made of precast concrete having a reinforcing bar protruding laterally from the upper side surface, an insertion hole extending downward from the upper surface toward the inside, a reinforcing bar protruding downward from the lower surface, and a lower portion A second pillar PCa member made of precast concrete having a reinforcing bar protruding laterally from the side surface, an insertion hole extending laterally from one side end surface toward the inside, and projecting laterally from the other side end surface A beam PCa member made of precast concrete having a reinforcing bar to be inserted, a reinforcing bar projecting to the side of the second column PCa member is inserted and arranged in the insertion hole of the beam PCa member, Since the reinforcing bars projecting to the side of the one-column PCa member are joined via joints, and the beam PCa member and the first column PCa member are joined with the cast-in-place concrete, the above-described conventional general construction method ( Compared to (a), (b), and (c), it is relatively easy to manufacture PCa members, and it is possible to save labor in formwork and grout work for joints due to the placement of cast-in-place concrete. There is an effect that construction work is possible.

  Moreover, according to the other column beam frame structure according to the present invention, the reinforcing bar protruding above the first pillar PCa member on the lower floor is inserted and arranged in the insertion hole on the lower surface of the first pillar PCa member on the upper floor, Since the reinforcing bar protruding below the second column PCa member on the upper floor is inserted and arranged in the insertion hole on the upper surface of the second column PCa member on the lower floor, the column joint of the first column PCa member becomes a forward joint. The column joint of the second column PCa member is a reverse insertion joint. Thereby, between the 1st pillar PCa member and the 2nd pillar PCa member, the effect that the stroke for penetrating the beam PCa member to the 1st pillar PCa member or the 2nd pillar PCa member can be secured. Play.

  Moreover, according to the construction method of the column beam frame structure according to the present invention, the beam beam frame structure is constructed as described above, and the beam PCa member is laterally directed toward the first column PCa member that is installed in advance. A first step of inserting and arranging a reinforcing bar protruding from the side of the first column PCa member into the insertion hole of the beam PCa member and connecting the beam PCa member to the side surface of the first column PCa member; By moving the second pillar PCa member on the upper floor from above toward the second pillar PCa member on the lower floor that is installed, the second pillar PCa member on the upper floor is inserted into the insertion hole on the upper surface of the second pillar PCa member on the lower floor. A reinforcing bar protruding below the column PCa member is inserted and arranged, and the second step of installing the second column PCa member on the upper floor on the upper surface of the second column PCa member on the lower floor is connected to the side surface of the first column PCa member. Rebar protruding to the side of the bent beam PCa member and the upper surface of the second pillar PCa member on the lower floor A rebar projecting to the side of the installed second pillar PCa member on the upper floor is joined via a joint, and the beam PCa member and the second pillar PCa member on the upper floor are joined with cast-in-place concrete. Since it includes three processes, it is relatively easy to manufacture PCa members compared to the above-mentioned conventional general construction methods (a), (b), and (c), and the formwork associated with the placement of cast-in-place concrete It is possible to save labor in the grouting work for construction and joints, and to achieve the effect that ultra-short construction period construction is possible.

  Further, according to another method for constructing a column beam frame structure according to the present invention, it is a method for constructing the above-mentioned column beam frame structure, in which a beam PCa member is directed toward a second column PCa member that is installed in advance. A first step of inserting a reinforcing bar protruding laterally of the second column PCa member into the insertion hole of the beam PCa member by moving to the side, and connecting the beam PCa member to the side surface of the second column PCa member; By moving the first pillar PCa member on the upper floor from above toward the first pillar PCa member on the lower floor that has been installed in advance, the lower floor is inserted into the insertion hole on the lower surface of the first pillar PCa member on the upper floor. A second step of inserting and arranging reinforcing bars protruding above the first pillar PCa member, and installing the first pillar PCa member on the upper floor on the upper surface of the first pillar PCa member on the lower floor; and a side surface of the second pillar PCa member Reinforcing bars that protrude to the side of the beam PCa member connected to the Join the reinforcing bars protruding to the side of the first pillar PCa member on the upper floor installed on the surface via joints, and join the beam PCa member and the first pillar PCa member on the upper floor with cast-in-place concrete Therefore, it is relatively easy to manufacture the PCa member as compared to the above-mentioned conventional general construction methods (A), (B), and (C). In addition to saving labor in framing work for formwork and joints, it has the effect of enabling ultra-short construction periods.

  Moreover, according to the construction method of the other column beam frame structure according to the present invention, since the second step and the third step are performed after the first step, the first column PCa member and the second column PCa member In the meantime, there is an effect that it is possible to secure a stroke for laterally inserting the beam PCa member into the first pillar PCa member or the second pillar PCa member.

  Moreover, according to the construction method of the other column beam frame structure according to the present invention, since the first pillar PCa member on the lower floor is installed in accordance with the timing of placing the floor concrete, the construction period can be shortened. There is an effect.

  Further, according to the PCa member according to the present invention, it is a PCa member used as a column of the above-mentioned column beam frame structure, a reinforcing bar protruding upward from the upper surface, an insertion hole extending upward from the lower surface toward the inside, Precast concrete with reinforcing bars protruding sideways from the upper side, or insertion holes extending downward from the upper surface to the inside, reinforcing bars protruding downward from the lower surface, and protruding from the lower side Since it consists of precast concrete which has a reinforcing bar, there exists an effect that it becomes possible to reduce the kind of column member used for a column beam frame structure. By reducing the type of PCa member, the manufacturing cost of the PCa member is reduced, the product inspection is facilitated, and the reliability and accuracy of the inspection are improved.

  According to another PCa member of the present invention, it is a PCa member used as a beam of the above-mentioned column beam frame structure, the insertion hole extending laterally from one side end face toward the inside, and the other side Since it is made of precast concrete having a reinforcing bar protruding laterally from the end face, it is possible to reduce the types of beam members used in the column beam frame structure. By reducing the type of PCa member, the manufacturing cost of the PCa member is reduced, the product inspection is facilitated, and the reliability and accuracy of the inspection are improved.

FIG. 1 is a front view showing an embodiment of a column beam frame structure, a method for constructing the column beam frame structure, and a PCa member according to Embodiment 1 of the present invention. FIG. 2 is a detailed view of the column panel zone of the column type A (first column PCa member) of FIG. FIG. 3 is a detailed view of a column panel zone of the column type B (second column PCa member) of FIG. FIG. 4 is a diagram of step 1 showing the embodiment of the column beam frame structure and the construction method thereof according to the first embodiment of the present invention. FIG. 5 is a diagram of step 2 showing the embodiment of the column beam frame structure and the construction method thereof according to Embodiment 1 of the present invention. FIG. 6 is a diagram of step 3 showing the embodiment of the column beam frame structure and the construction method thereof according to Embodiment 1 of the present invention. FIG. 7 is a diagram of step 4 illustrating the embodiment of the column beam frame structure and the construction method thereof according to Embodiment 1 of the present invention. FIG. 8 is a front view showing an embodiment of a column beam frame structure, a method for constructing the column beam frame structure, and a PCa member according to Embodiment 2 of the present invention. FIG. 9 is a diagram of step 1 showing the embodiment of the column beam frame structure and the construction method thereof according to Embodiment 2 of the present invention. FIG. 10 is a diagram of step 2 illustrating the embodiment of the column beam frame structure and the construction method thereof according to the second embodiment of the present invention. FIG. 11: is the figure of the process 3 which shows embodiment of the column beam frame structure which concerns on Embodiment 2 of this invention, and its construction method. FIG. 12 is a diagram of step 4 illustrating the embodiment of the column beam frame structure and the construction method thereof according to the second embodiment of the present invention. FIG. 13 is a front view showing a general construction method of a conventional structural structure of a column beam frame. (A) is a method of (A), (B) is a method of B, and (C) is a method of C. .

  Embodiments of a column beam frame structure, a column beam frame structure construction method, and a PCa member according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

[Embodiment 1]
First, a first embodiment of the present invention will be described with reference to FIGS.

(Column beam frame structure and PCa member)
As shown in FIG. 1, the column beam frame structure 10 according to the first exemplary embodiment includes a first column PCa member 12, a second column PCa member 14, and a beam PCa member 16. The first and second column PCa members 12 and 14 and the beam PCa member 16 are all configured as rectangular parallelepiped precast concrete (PCa). The first and second column PCa members 12 and 14 are arranged upside down, and the shape and dimensions of the members themselves are the same. In addition, the 1st and 2nd pillar PCa members 12 and 14 and the beam PCa member 16 are equivalent to the PCa member which concerns on this invention.

  The first column PCa member 12 protrudes upward from the upper surface, protrudes from the lower surface to the inside of the column main reinforcement 18 (rebar) embedded in the inside, and protrudes upward from the lower surface to the left and right sides. It is made of precast concrete having beam main bars 22 (rebars) embedded inside. Hereinafter, the first pillar PCa member 12 may be referred to as a pillar type A.

  The second column PCa member 14 has an insertion hole 24 extending downward from the upper surface toward the inside, a column main reinforcement 26 (rebar) embedded in the lower portion from the lower surface, and a left and right side projection from the lower side surface. It is made of precast concrete having beam main bars 28 (reinforcing bars) embedded inside. Hereinafter, the second pillar PCa member 14 may be referred to as a pillar type B.

  The beam PCa member 16 has an insertion hole 30 that extends laterally from one side end surface toward the inside, and a beam main bar 32 (rebar) that protrudes left and right from the other side end surface and is embedded inside. Made of precast concrete.

  In the example shown in the figure, an example in which five column main bars 18 and 26 and five insertion holes 20 and 24 are provided, and two beam main bars 28 and 32 and two insertion holes 30 are provided in front view. A plurality of these column main bars 18, 26, beam main bars 28, 32 and insertion holes 20, 24, 30 are also provided in the depth direction. Moreover, the code | symbol G in a figure has shown the grout construction location.

  FIG. 2 is a detailed view of the pillar type A pillar panel zone. As shown in this figure, the side surfaces of the first pillar PCa member 12 and the beam PCa member 16 are substantially in contact with each other. A mechanical joint 34 is inserted in the insertion hole 30 of the beam PCa member 16 in advance, and the end of the beam main bar 32 embedded in the beam PCa member 16 is joined to the mechanical joint 34. .

  In the structure of FIG. 2, the beam PCa member 16 is moved horizontally toward the first pillar PCa member 12 that has been installed in advance, and the beam main reinforcement 22 is inserted into the insertion hole 30. Obtained by.

  In addition, the position of the mechanical joint 34 is installed in the position of 0.3-0.5D by the horizontal distance L from the side surface of the 1st pillar PCa member 12, when the height of the beam PCa member 16 is set to D, for example. It is preferable.

  FIG. 3 is a detailed view of a pillar type B pillar panel zone. As shown in this figure, the side surfaces of the second pillar PCa member 14 and the beam PCa member 16 are opposed to each other with a space therebetween. The end of the beam main bar 32 of the beam PCa member 16 and the end of the beam main bar 28 protruding to the side of the second column PCa member 14 are joined via a mechanical joint 36 (joint). The beam PCa member 16 and the column PCa member 14 are joined by placing a cast-in-place concrete 38, and the mechanical joint 36 is embedded in the cast-in-place concrete 38.

  The mechanical joint 36 is installed at a position of, for example, 0.3 to 0.5 D at a horizontal distance L from the side surface of the second column PCa member 14 when the height of the beam PCa member 16 is D. It is preferable.

  On the other hand, the second pillar PCa member 14 on the upper floor is installed on the upper surface of the second pillar PCa member 14 on the lower floor. A mechanical joint 40 is inserted in advance in the insertion hole 24 on the upper surface of the second pillar PCa member 14 on the lower floor, and is embedded in the second pillar PCa member 14 on the lower floor. The ends of the column main bars 26 are joined. The end of the column main reinforcement 26 that protrudes downward from the lower surface of the second column PCa member 14 on the upper floor is inserted into the insertion hole 24 on the upper surface of the second column PCa member 14 on the lower floor, via the mechanical joint 40. It is joined to the end of the column main reinforcement 26.

  The structure of FIG. 3 is a so-called structure in which the main pillar 26 is inserted into the insertion hole 24 by moving the second pillar PCa member 14 on the upper floor downward toward the second pillar PCa member 14 on the lower floor that has been installed in advance. It is obtained by reverse insertion (sign K).

  According to the column beam frame structure 10 of the first embodiment configured as described above, the column panel zone is made into PCa, so that it is cast in the column panel zone in the same manner as the conventional method (a). Do not place concrete. Horizontal insertion is adopted as a connection method between the beam PCa member 16 and the first column PCa member 12 (column type A). On the other hand, in-situ concrete is used for the connection portion between the beam PCa member 16 and the second column PCa member 14 (column type B).

  Further, the column joint of the first column PCa member 12 employs a forward coupling, and the column coupling of the second column PCa member 14 employs a reverse coupling. Thereby, a stroke for transversely placing the beam PCa member 16 to the first column PCa member 12 can be secured between the first column PCa member 12 and the second column PCa member 14.

  Further, in order to attach the beam PCa member 16 to the first column PCa member 12 in a horizontal direction, the cast-in-place concrete (reference numeral 38 in FIG. 3) in the beam main reinforcement joint portion (mechanical joint 36) on the second column PCa member 14 side is provided. Compared with the above-mentioned conventional general construction method, the number of places where the formwork is constructed is reduced, and labor saving of the formwork can be achieved. Furthermore, since the formwork construction points are concentrated around the second pillar PCa member 14 and the shape and dimensions of the formwork are the same, the unitization and diversion of the formwork becomes easy, and the formwork work Labor saving can be further achieved.

  Further, according to the first embodiment, the first and second pillar PCa members 12 and 14 are arranged upside down, and the shape and dimensions of the members themselves are the same. For this reason, the column member used for the column beam frame structure can be reduced to one type of the first and second column PCa members 12 and 14, and the beam member can be reduced to one type of the beam PCa member 16. By reducing the type of PCa member used, the manufacturing cost of the PCa member is reduced, the product inspection is facilitated, and the certainty and accuracy of the inspection are improved.

  Further, according to the first embodiment, the column grout location is 50% as compared with the method (c) described above, and labor saving of the grout work can be achieved. Furthermore, since the first embodiment is less difficult to manufacture the PCa member than the method (c), a PCa member having a stable quality can be obtained.

  Further, by dividing the types of the pillar PCa members into the pillar type A and the pillar type B, when the pillar type A is constructed in terms of erection accuracy, the erection adjustment can be performed in accordance with the accuracy of the pillar type B. The same applies to the column type B. In other words, since the post-stage column PCa member can be installed using the previously installed column PCa member as a guideline, it is easy to adjust the erection and improve accuracy.

  In addition, since the first column PCa member 12 of the column type A can be constructed in accordance with the floor concrete placement, it is possible to perform the ultra-short construction period and to cope with the ultra-short construction period.

  As described above, the column beam frame structure 10 according to the first embodiment can solve the problems of the above-described conventional general construction methods (A), (B), and (C), and can cope with ultra-short-term construction. It can be called technology. That is, according to the first embodiment, the PCa member can be easily manufactured as compared with the above-described conventional general construction method, and labor saving of the formwork and the grout work for the joint portion due to the placement of the cast-in-place concrete. In addition, the construction can be done with a very short construction period.

(How to build a column beam structure)
Next, the construction method of the column beam frame structure according to the first embodiment will be described.
4 to 7 show an example of a procedure for constructing the column beam frame structure 10 as shown in FIG. 1 by the construction method of the first embodiment. In addition, in the following description, the case where a column beam frame structure is constructed | assembled on the floor concrete put in advance is demonstrated.

  As shown in step 1 of FIG. 4, the member 44 corresponding to the column head of the first column PCa member 12 and the second column PCa member 14 are preliminarily installed on the floor concrete 42 that has been previously placed. The column main reinforcement 18 protrudes from the upper surface of the member 44.

  First, as step 1, the first column PCa member 12 is dropped (ordered) onto the upper surface of the member 44, and the column main reinforcement 18 is inserted into the insertion hole 20 to engage with a mechanical joint (not shown) (step S1). Thereafter, the grout is filled into the insertion hole 20 of the member 44 and the grout is filled into the joint surface between the member 44 and the first pillar PCa member 12. Here, the floor concrete 42 usually requires 24 hours or more to reach the required strength, but in the construction method of the first embodiment, the first pillar PCa member 12 is installed on the first pillar PCa member 12. Therefore, the construction can proceed without depending on the strength of the floor concrete 42. Therefore, if the first pillar PCa member 12 on the lower floor is installed on the floor concrete 42 in accordance with the placement timing of the floor concrete 42, the construction period can be shortened.

  Next, as shown in step 2 of FIG. 5, the beam PCa member 16 is moved laterally (sideward) with respect to the upper part of the first pillar PCa member 12 on the lower floor that has been installed in advance (lateral insertion). ), The beam main reinforcement 22 is inserted into the insertion hole 30 and engaged with a mechanical joint (not shown) (step S2). Thereafter, the grout is filled into the insertion hole 30 of the beam PCa member 16 and the joint surface between the first column PCa member 12 and the beam PCa member 16 is filled with grout. In this way, the beam PCa member 16 is connected to the side surface of the first pillar PCa member 12 (first step). The beam PCa member 16 is supported by a support work (not shown).

  Next, as shown in Step 3 of FIG. 6, the second pillar PCa member 14 on the upper floor is dropped (upside down) from the upper part of the second pillar PCa member 14 on the lower floor that has been installed in advance, and the column main reinforcement 26 is It is inserted into the insertion hole 24 and engaged with a mechanical joint (not shown) (step S3). Thereafter, the grout is filled in the insertion hole 24 of the second pillar PCa member 14 and the grout is filled in the joint surface between the second pillar PCa members 14. In this way, the second pillar PCa member 14 on the upper floor is installed on the upper surface of the second pillar PCa member 14 on the lower floor (second step).

  Finally, as shown in step 4 of FIG. 7, the beam main bar 32 of the beam PCa member 16 and the beam main bar 28 below the second column PCa member 14 are joined via a mechanical joint 36. Then, a formwork is installed between the beam PCa member 16 and the second pillar PCa member 14, and the cast-in-place concrete 38 is placed. In this way, the beam PCa member 16 and the second pillar PCa member 14 are joined (third step).

  As a result, the column beam frame structure 10 of the first embodiment can be constructed. Thereafter, it is also possible to construct a column beam structure on the upper floor by repeating steps 1 to 4.

  In the first embodiment, the case where the third process is performed after the second process is performed following the first process has been described. If implemented in this order, it is possible to secure a stroke between the first column PCa member 12 and the second column PCa member 14 for laterally inserting the beam PCa member 16 into the first column PCa member 12. it can. However, the present invention is not limited to this, and the order of the first process and the second process may be reversed, and the third process may be performed after the first process is performed following the second process. .

  According to the method for constructing the column beam frame structure according to the first embodiment, the columns up to the column panel zone are converted to PCa, so that cast-in-place concrete is cast into the column panel zone as in the conventional method (a). Not set up. Horizontal insertion is adopted as a connection method between the beam PCa member 16 and the first column PCa member 12 (column type A). On the other hand, in-situ concrete is used for the connection portion between the beam PCa member 16 and the second column PCa member 14 (column type B). And column type A and column type B are constructed alternately, and a column beam frame structure is constructed.

  Further, the column joint of the first column PCa member 12 employs a forward coupling, and the column coupling of the second column PCa member 14 employs a reverse coupling. Thereby, a stroke for transversely placing the beam PCa member 16 to the first column PCa member 12 can be secured between the first column PCa member 12 and the second column PCa member 14.

  Further, in order to attach the beam PCa member 16 to the first column PCa member 12 in a horizontal direction, the cast-in-place concrete (reference numeral 38 in FIG. 3) in the beam main reinforcement joint portion (mechanical joint 36) on the second column PCa member 14 side is provided. Compared with the above-mentioned conventional general construction method, the number of places where the formwork is constructed is reduced, and labor saving of the formwork can be achieved. Furthermore, since the formwork construction points are concentrated around the second pillar PCa member 14 and the shape and dimensions of the formwork are the same, the unitization and diversion of the formwork becomes easy, and the formwork work Labor saving can be further achieved.

  Further, according to the first embodiment, the first and second pillar PCa members 12 and 14 are arranged upside down, and the shape and dimensions of the members themselves are the same. For this reason, the column member used for the column beam frame structure can be reduced to one type of the first and second column PCa members 12 and 14, and the beam member can be reduced to one type of the beam PCa member 16. By reducing the type of PCa member used, the manufacturing cost of the PCa member is reduced, the product inspection is facilitated, and the certainty and accuracy of the inspection are improved.

  Further, according to the first embodiment, the column grout location is 50% as compared with the method (c) described above, and labor saving of the grout work can be achieved. Furthermore, since the first embodiment is less difficult to manufacture the PCa member than the method (c), a PCa member having a stable quality can be obtained.

  Further, by dividing the types of the pillar PCa members into the pillar type A and the pillar type B, when the pillar type A is constructed in terms of erection accuracy, the erection adjustment can be performed in accordance with the accuracy of the pillar type B. The same applies to the column type B. In other words, since the post-stage column PCa member can be installed using the previously installed column PCa member as a guideline, it is easy to adjust the erection and improve accuracy.

  In addition, since the first column PCa member 12 of the column type A can be constructed in accordance with the floor concrete placement, it is possible to perform the ultra-short construction period and to cope with the ultra-short construction period.

  As described above, the method for constructing the column beam frame structure according to the first embodiment solves the problems of the above-described conventional general construction methods (a), (b), and (c), and achieves an ultra-short construction period construction. It can be said that this is a compatible technology. That is, according to the first embodiment, the PCa member can be easily manufactured as compared with the above-described conventional general construction method, and labor saving of the formwork and the grout work for the joint portion due to the placement of the cast-in-place concrete. In addition, the construction can be done with a very short construction period.

[Embodiment 2]
Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the arrangement positions of the column type A and the column type B are exchanged in the first embodiment.

(Column beam frame structure and PCa member)
As shown in FIG. 8, the column beam frame structure 100 according to the second exemplary embodiment is the arrangement position of the first column PCa member 12 and the second column PCa member 14 in the column beam frame structure 10 of the first exemplary embodiment. Is equivalent to The first and second column PCa members 12 and 14 and the beam PCa member 16 are the same members as those described in the first embodiment, and correspond to the PCa members of the present invention.

  Here, in the second embodiment, a reinforcing bar protruding to the side of the second column PCa member is inserted and arranged in the insertion hole of the beam PCa member, and the reinforcing bar of the beam PCa member and the side of the first column PCa member are disposed. The protruding reinforcing bars are joined via joints, and the beam PCa member and the first column PCa member are joined by in-situ concrete. The detailed view of the column panel zone of the column type A (first column PCa member 12) is obtained by inverting FIG. 3 upside down, and the detailed view of the column panel zone of the column type B (second column PCa member 14). Is upside down from FIG.

  According to the column beam frame structure 100 of the second embodiment, the same operational effects as the column beam frame structure 10 of the above-described first embodiment can be obtained. That is, according to the second embodiment, the PCa member can be easily manufactured as compared with the conventional general construction method described above, and labor saving of the formwork and the grout work for the joint portion due to the placement of the cast-in-place concrete. In addition, the construction can be done with a very short construction period.

(How to build a column beam structure)
Next, a method for constructing a column beam frame structure according to the second embodiment will be described.
FIGS. 9-12 shows an example of the procedure which constructs the column beam frame structure 100 as shown in FIG. 8 by the construction method of this Embodiment 2. FIGS. In addition, in the following description, the case where a column beam frame structure is constructed | assembled on the floor concrete put in advance is demonstrated.

  As shown in Step 1 of FIG. 9, the member 44 corresponding to the column head of the first column PCa member 12 and the second column PCa member 14 are preliminarily installed on the floor concrete 42 that has been previously placed. The column main reinforcement 18 protrudes from the upper surface of the member 44.

  First, as step 1, the second column PCa member 14 on the upper floor is dropped (reversely inserted) on the upper surface of the second column PCa member 14, and the column main reinforcement 26 is inserted into the insertion hole 24 to engage with a mechanical joint (not shown). (Step S11). Thereafter, the insertion hole 24 is filled with grout, and the joint surface between the second pillar PCa members 14 is filled with grout.

  Next, as shown in step 2 of FIG. 10, the beam PCa member 16 is moved laterally (laterally) with respect to the lower part of the second pillar PCa member 14 on the upper floor that has been installed in advance (lateral insertion). ), The beam main reinforcement 28 is inserted into the insertion hole 30 and engaged with a mechanical joint (not shown) (step S12). Thereafter, the insertion hole 30 of the beam PCa member 16 is filled with grout, and the joint surface between the second column PCa member 14 and the beam PCa member 16 is filled with grout. In this way, the beam PCa member 16 is connected to the side surface of the second pillar PCa member 14 (first step). The beam PCa member 16 is supported by a support work (not shown).

  Next, as shown in Step 3 of FIG. 11, the first column PCa member 12 is dropped (ordered) from above the previously installed member 44, and the column main reinforcement 18 is inserted into the insertion hole 20 to show a machine (not shown). Engage with the joint (step S13). Thereafter, the grout is filled into the insertion hole 20 of the first pillar PCa member 12 and the joint surface between the first pillar PCa member 12 and the member 44 is filled with grout. Thus, the 1st pillar PCa member 12 is installed in the upper surface of the member 44 (2nd process).

  Finally, as shown in Step 4 of FIG. 12, the beam main bar 32 of the beam PCa member 16 and the beam main bar 22 at the top of the first column PCa member 12 are joined via a mechanical joint 36. Then, a formwork is installed between the beam PCa member 16 and the first pillar PCa member 12, and the on-site cast concrete 38 is placed. In this way, the beam PCa member 16 and the first pillar PCa member 12 are joined (third step).

  As a result, the column beam frame structure 100 of the second embodiment can be constructed. Thereafter, it is also possible to construct a column beam structure on the upper floor by repeating steps 1 to 4.

  In the second embodiment, the case where the third process is performed after the second process is performed following the first process has been described. If implemented in this order, it is possible to secure a stroke between the first column PCa member 12 and the second column PCa member 14 for laterally inserting the beam PCa member 16 into the second column PCa member 14. it can. However, the present invention is not limited to this, and the order of the first process and the second process may be reversed, and the third process may be performed after the first process is performed following the second process. .

  According to the method for constructing a column beam frame structure according to the second embodiment, the same effects as the method for constructing a column beam frame structure according to the first embodiment are obtained. That is, according to the second embodiment, the PCa member can be easily manufactured as compared with the conventional general construction method described above, and labor saving of the formwork and the grout work for the joint portion due to the placement of the cast-in-place concrete. In addition, the construction can be done with a very short construction period.

  As described above, according to the column beam frame structure according to the present invention, the column beam frame structure of the reinforced concrete structure has a reinforcing bar projecting upward from the upper surface and extending upward from the lower surface toward the inside. A first pillar PCa member made of precast concrete having an insertion hole, and a reinforcing bar protruding laterally from the upper side surface; an insertion hole extending downward from the upper surface toward the inside; and a reinforcing bar protruding downward from the lower surface; A second pillar PCa member made of precast concrete having a reinforcing bar protruding laterally from the lower side surface, an insertion hole extending laterally from one side end surface to the inside, and a side from the other side end surface A beam PCa member made of precast concrete having a reinforcing bar protruding to the beam PCa member, and a reinforcing bar protruding to the side of the first column PCa member is inserted and arranged in the insertion hole of the beam PCa member. Since the reinforcing bar and the reinforcing bar protruding to the side of the second column PCa member are joined via a joint and the beam PCa member and the second column PCa member are joined with the cast-in-place concrete, the above-mentioned conventional general Compared with conventional construction methods (a), (b), and (c), it is relatively easy to manufacture PCa members, and it is possible to save labor in formwork and grout work for joints due to the placement of cast-in-place concrete. At the same time, ultra-short-term construction is possible.

  Moreover, according to another column beam frame structure according to the present invention, the column beam frame structure of the reinforced concrete structure has a reinforcing bar protruding upward from the upper surface and an insertion hole extending upward from the lower surface toward the inside. A first pillar PCa member made of precast concrete having a reinforcing bar protruding laterally from the upper side surface, an insertion hole extending downward from the upper surface toward the inside, a reinforcing bar protruding downward from the lower surface, and a lower portion A second pillar PCa member made of precast concrete having a reinforcing bar protruding laterally from the side surface, an insertion hole extending laterally from one side end surface toward the inside, and projecting laterally from the other side end surface A beam PCa member made of precast concrete having a reinforcing bar to be inserted, a reinforcing bar projecting to the side of the second column PCa member is inserted and arranged in the insertion hole of the beam PCa member, Since the reinforcing bars projecting to the side of the one-column PCa member are joined via joints, and the beam PCa member and the first column PCa member are joined with the cast-in-place concrete, the above-described conventional general construction method ( Compared to (a), (b), and (c), it is relatively easy to manufacture PCa members, and it is possible to save labor in formwork and grout work for joints due to the placement of cast-in-place concrete. Construction period construction is possible.

  Moreover, according to the other column beam frame structure according to the present invention, the reinforcing bar protruding above the first pillar PCa member on the lower floor is inserted and arranged in the insertion hole on the lower surface of the first pillar PCa member on the upper floor, Since the reinforcing bar protruding below the second column PCa member on the upper floor is inserted and arranged in the insertion hole on the upper surface of the second column PCa member on the lower floor, the column joint of the first column PCa member becomes a forward joint. The column joint of the second column PCa member is a reverse insertion joint. Thereby, the stroke for transversely placing the beam PCa member into the first column PCa member or the second column PCa member can be secured between the first column PCa member and the second column PCa member.

  Moreover, according to the construction method of the column beam frame structure according to the present invention, the beam beam frame structure is constructed as described above, and the beam PCa member is laterally directed toward the first column PCa member that is installed in advance. A first step of inserting and arranging a reinforcing bar protruding from the side of the first column PCa member into the insertion hole of the beam PCa member and connecting the beam PCa member to the side surface of the first column PCa member; By moving the second pillar PCa member on the upper floor from above toward the second pillar PCa member on the lower floor that is installed, the second pillar PCa member on the upper floor is inserted into the insertion hole on the upper surface of the second pillar PCa member on the lower floor. A reinforcing bar protruding below the column PCa member is inserted and arranged, and the second step of installing the second column PCa member on the upper floor on the upper surface of the second column PCa member on the lower floor is connected to the side surface of the first column PCa member. Rebar protruding to the side of the bent beam PCa member and the upper surface of the second pillar PCa member on the lower floor A rebar projecting to the side of the installed second pillar PCa member on the upper floor is joined via a joint, and the beam PCa member and the second pillar PCa member on the upper floor are joined with cast-in-place concrete. Since it includes three processes, it is relatively easy to manufacture PCa members compared to the above-mentioned conventional general construction methods (a), (b), and (c), and the formwork associated with the placement of cast-in-place concrete Labor saving of grout work for construction and joints can be achieved, and super-short-term construction is possible.

  Further, according to another method for constructing a column beam frame structure according to the present invention, it is a method for constructing the above-mentioned column beam frame structure, in which a beam PCa member is directed toward a second column PCa member that is installed in advance. A first step of inserting a reinforcing bar protruding laterally of the second column PCa member into the insertion hole of the beam PCa member by moving to the side, and connecting the beam PCa member to the side surface of the second column PCa member; By moving the first pillar PCa member on the upper floor from above toward the first pillar PCa member on the lower floor that has been installed in advance, the lower floor is inserted into the insertion hole on the lower surface of the first pillar PCa member on the upper floor. A second step of inserting and arranging reinforcing bars protruding above the first pillar PCa member, and installing the first pillar PCa member on the upper floor on the upper surface of the first pillar PCa member on the lower floor; and a side surface of the second pillar PCa member Reinforcing bars that protrude to the side of the beam PCa member connected to the Join the reinforcing bars protruding to the side of the first pillar PCa member on the upper floor installed on the surface via joints, and join the beam PCa member and the first pillar PCa member on the upper floor with cast-in-place concrete Therefore, it is relatively easy to manufacture the PCa member as compared to the above-mentioned conventional general construction methods (A), (B), and (C). It is possible to save labor in the framing work for formwork and joints, and it is possible to carry out ultra-short construction work.

  Moreover, according to the construction method of the other column beam frame structure according to the present invention, since the second step and the third step are performed after the first step, the first column PCa member and the second column PCa member In the meantime, it is possible to secure a stroke for transversely placing the beam PCa member to the first pillar PCa member or the second pillar PCa member.

  Moreover, according to the construction method of the other column beam frame structure according to the present invention, since the first pillar PCa member on the lower floor is installed in accordance with the timing of placing the floor concrete, the construction period can be shortened. .

  Further, according to the PCa member according to the present invention, it is a PCa member used as a column of the above-mentioned column beam frame structure, a reinforcing bar protruding upward from the upper surface, an insertion hole extending upward from the lower surface toward the inside, Precast concrete with reinforcing bars protruding sideways from the upper side, or insertion holes extending downward from the upper surface to the inside, reinforcing bars protruding downward from the lower surface, and protruding from the lower side Since it consists of precast concrete with a reinforcing bar, it becomes possible to reduce the kind of column member used for a column beam frame structure. By reducing the type of PCa member, the manufacturing cost of the PCa member is reduced, the product inspection is facilitated, and the reliability and accuracy of the inspection are improved.

  According to another PCa member of the present invention, it is a PCa member used as a beam of the above-mentioned column beam frame structure, the insertion hole extending laterally from one side end face toward the inside, and the other side Since it is made of precast concrete having a reinforcing bar protruding laterally from the end face, it is possible to reduce the types of beam members used in the column beam frame structure. By reducing the type of PCa member, the manufacturing cost of the PCa member is reduced, the product inspection is facilitated, and the reliability and accuracy of the inspection are improved.

  As described above, the column beam frame structure, the method for constructing the column beam frame structure, and the PCa member according to the present invention include the column PCa member and the beam PCa member made of precast concrete in a reinforced concrete structure such as a super high-rise apartment house. It is useful for column beam structures and construction methods, and is particularly suitable for making PCa members relatively easy, saving labor in formwork and grout work, and enabling ultra-short-term construction. Yes.

10,100 Column beam frame structure 12 First column PCa member (column type A) (PCa member)
14 Second pillar PCa member (pillar type B) (PCa member)
16 Beam PCa member (PCa member)
18, 26 Column main reinforcement (rebar)
20, 24, 30 Insertion hole 22, 28, 32 Beam reinforcement (rebar)
34, 40 Mechanical joint 36 Mechanical joint (joint)
38 Cast-in-place concrete 42 Floor concrete 44 Member G Grout construction location K Reverse insertion Y Horizontal insertion

Claims (7)

A frame structure of a column beam of a reinforced concrete structure,
A first pillar PCa member made of precast concrete having a reinforcing bar protruding upward from the upper surface, an insertion hole extending upward from the lower surface toward the inside, and a reinforcing bar protruding laterally from the upper side surface;
A second pillar PCa member made of precast concrete having an insertion hole extending downward from the upper surface toward the inside, a reinforcing bar protruding downward from the lower surface, and a reinforcing bar protruding laterally from the lower side surface;
A beam PCa member made of precast concrete having an insertion hole extending laterally from one side end surface to the inside and a reinforcing bar projecting sideways from the other side end surface;
Reinforcing bars that protrude to the side of the first column PCa member are inserted into the insertion holes of the beam PCa member, and the reinforcing bars of the beam PCa member and the reinforcing bar that protrudes to the side of the second column PCa member are joined via joints. A beam-to-column frame structure characterized in that the beam PCa member and the second column PCa member are joined with cast-in-place concrete. A frame structure of a column beam of a reinforced concrete structure,
A first pillar PCa member made of precast concrete having a reinforcing bar protruding upward from the upper surface, an insertion hole extending upward from the lower surface toward the inside, and a reinforcing bar protruding laterally from the upper side surface;
A second pillar PCa member made of precast concrete having an insertion hole extending downward from the upper surface toward the inside, a reinforcing bar protruding downward from the lower surface, and a reinforcing bar protruding laterally from the lower side surface;
A beam PCa member made of precast concrete having an insertion hole extending laterally from one side end surface to the inside and a reinforcing bar projecting sideways from the other side end surface;
Reinforcing bars that protrude to the side of the second column PCa member are inserted and arranged in the insertion holes of the beam PCa member, and the reinforcing bars of the beam PCa member and the reinforcing bar that protrudes to the side of the first column PCa member are joined via joints. A column beam frame structure characterized in that a beam PCa member and a first column PCa member are joined with cast-in-place concrete. The reinforcing bars protruding above the first pillar PCa member on the lower floor are inserted and arranged in the insertion holes on the lower surface of the first pillar PCa member on the upper floor,
3. The column beam according to claim 1, wherein a reinforcing bar protruding below the second pillar PCa member on the upper floor is inserted and disposed in the insertion hole on the upper surface of the second pillar PCa member on the lower floor. Frame structure. A method for constructing the column beam frame structure according to claim 1,
By moving the beam PCa member to the side toward the first pillar PCa member that has been installed in advance, a reinforcing bar protruding to the side of the first pillar PCa member is inserted and arranged in the insertion hole of the beam PCa member. A first step of connecting the beam PCa member to the side surface of the one-column PCa member;
By moving the second pillar PCa member on the upper floor from the upper side toward the second pillar PCa member on the lower floor that has been installed in advance, the upper floor second pillar PCa member is inserted into the insertion hole on the upper surface of the second pillar PCa member on the lower floor. A second step of inserting and arranging a reinforcing bar protruding below the two-column PCa member and installing the second column PCa member on the upper floor on the upper surface of the second column PCa member on the lower floor;
Reinforcing bars that project to the side of the beam PCa member connected to the side surface of the first column PCa member, and projecting to the side of the second column PCa member on the upper floor installed on the upper surface of the second column PCa member on the lower floor. A method for constructing a beam-to-column frame structure, comprising: a third step of joining a reinforcing bar through a joint and joining the beam PCa member and the second column PCa member on the upper floor with a cast-in-place concrete. . A method for constructing the column beam frame structure according to claim 2,
By moving the beam PCa member to the side toward the second pillar PCa member installed in advance, a reinforcing bar protruding to the side of the second pillar PCa member is inserted and arranged in the insertion hole of the beam PCa member. A first step of connecting the beam PCa member to the side surface of the two-column PCa member;
By moving the first pillar PCa member on the upper floor from above toward the first pillar PCa member on the lower floor that has been installed in advance, the lower floor first pillar PCa member is inserted into the insertion hole on the lower surface of the first pillar PCa member on the upper floor. A second step of inserting and arranging reinforcing bars protruding above the one-column PCa member and installing the first column PCa member on the upper floor on the upper surface of the first column PCa member on the lower floor;
Reinforcing bars that project to the side of the beam PCa member connected to the side surface of the second column PCa member, and projecting to the side of the first column PCa member on the upper floor installed on the upper surface of the first column PCa member on the lower floor. A method for constructing a beam-to-column frame structure comprising: a third step of joining a reinforcing bar to each other through a joint and joining the beam PCa member and the first column PCa member on the upper floor with a cast-in-place concrete. .   6. The method for constructing a column beam frame structure according to claim 4 or 5, wherein the second step and the third step are performed after the first step.   The method for constructing a column beam frame structure according to any one of claims 4 to 6, wherein the first pillar PCa member on the lower floor is installed in accordance with the timing of placing the floor concrete.

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