JP5635939B2 - Construction method of column beam frame - Google Patents

Description

  The present invention relates to a method for constructing a column beam frame.

  As a method for improving the efficiency when building a column beam frame with a precast beam member and a precast column member, Patent Document 1 describes (1) n-floor on the edge of the upper surface of an n-floor precast column member. The precast beam member is placed at the end, and the n + 1 floor precast column member is erected above the n floor precast column member. (2) The slab reinforcement of the nth floor slab is performed (3 ) Place concrete on the space to be the panel zone and slab formwork and perform curing until it reaches a predetermined strength. (4) Precast beam member for n + 1 floor is placed on the upper edge of the precast column member for n + 1 floor. Although the procedure of placing is disclosed, since there is the process (3) in this construction method, the cycle for constructing the column beam frame on each floor is not so shortened.

JP 7-54396 A

In the RC laminating method generally used, for example, in the case of a building having a floor area of about 1000 to 1400 (m ² ), a precast column member for n + 1 floor is placed above the precast column member for n floor. It took at least 5-6 days to stand up.

  From such a viewpoint, it is an object of the present invention to provide a method for constructing a column beam frame capable of shortening the work period.

The present invention relates to a method for constructing a column beam frame using a precast beam member in which a beam portion projects from a panel zone and a short columnar column portion is provided on the panel zone, and is a precast for n floors placing the precast pillar member of the (n + 1) ulcers on the pillar portion of the beam member, and the bar member disposing step of the lower end of the precast pillar member to said pillar portion is temporarily fixed, n + 1-order to the precast pillar member of the (n + 1) ulcers And a beam member arranging step of temporarily fixing the panel zone to the upper end of the precast column member for the ( n + 1 ) th floor, and a precast beam member for the nth floor. while panel zone is temporarily fixed to the upper end of the precast pillar members n ulcers and prior to pouring the concrete slab in n floor starts said post member disposing step The beam member arranging step is started in a state where the lower end portion of the precast column member for the ( n + 1) floor is temporarily fixed to the column portion of the precast beam member for the n floor .

  According to the present invention, the precast column member and the precast beam member for the n + 1 floor can be arranged without waiting for the completion of the nth floor slab. Therefore, the column member arrangement step and the beam member arrangement are performed after the completion of the nth floor slab. Compared with the case where the process is performed, the operating rate of the lifting machine is improved, and as a result, the construction period can be shortened. That is, according to the present invention, it is possible to perform the column member arrangement step and the beam member arrangement step in parallel with the slab arrangement step and the slab concrete placing step for constructing the n-th floor slab. When two days are required for the slab arrangement process and the slab concrete placing process, the work period can be shortened by two days per floor.

  In the column member arranging step, a column fixing jig is arranged so as to surround a boundary portion between the column portion and the precast column member, and the column fixing jig is fixed to the column portion and the precast column member. It is preferable that the lower end portion of the precast column member is temporarily fixed to the column portion. It is necessary to inject a filler such as grout or high-fluid mortar into the boundary between the column and the precast column member. If a column fixing jig is placed so as to surround the boundary, the column fixing jig Since it can be used as a mold for a filler, it is possible to improve work efficiency.

  As a precast beam member, when one to three beam portions project from one panel zone (column beam joint portion) and a short columnar column portion is provided on the panel zone, Compared with a cross-shaped precast beam member in which four beam portions project from one panel zone, the transport of the precast beam member is facilitated.

  According to the present invention, it is possible to shorten the construction period.

It is an allocation figure of the precast beam member in a standard floor. (A) is a plan view showing an I-type precast beam member, (b) is a plan view showing an L-type precast beam member, and (c) is a plan view showing a T-type precast beam member. (A) is a side view of a precast beam member, (b) is a side view of a precast column member. (A) is a process table in the construction method of the column beam frame which concerns on embodiment of this invention, (b) is a process table in the RC laminated construction method currently generally implemented. It is a side view for demonstrating the construction method of the column beam frame which concerns on embodiment of this invention, Comprising: It is a side view which shows the condition completed to the floor member arrangement | positioning process of n floor. It is a side view for demonstrating the pillar member arrangement | positioning process of the n + 1 floor. It is a side view for demonstrating the beam member arrangement | positioning process of n + 1 floor, Comprising: It is a side view which shows the state which mounted the precast beam member for n + 1 floors. It is a side view for demonstrating the beam member arrangement | positioning process of n + 1 floor, Comprising: It is a side view which shows the state which temporarily fixed the precast beam member for n + 1 floors. It is a side view for demonstrating the nth-floor slab concrete placement process. (A)-(f) is a top view which shows the modification of a precast beam member.

  The column beam frame construction method according to the embodiment of the present invention uses a precast beam member and a precast column member made of reinforced concrete, and is applied to a multi-storey building A.

As shown in FIG. 1, the I-type precast beam member B _I , the L-type precast beam members B _L and T are provided on the reference floor of the building A (a floor representing a plurality of floors having the same column beam arrangement pattern). mold precast beam member B _T has been arranged, these precast beam member B _I, B _L, the B _T, a rectangular frame-shaped peripheral frame A1, the rectangular frame shaped inner peripheral frame A2 is formed. Although illustration is omitted, the layout of the precast beam members B _I , B _L , B _{T on} the floor having the same configuration as the reference floor is the same as in FIG.

The I-type precast beam member B _I and the L-type precast beam member B _L are panel zone-integrated precast beam members in which two beam portions 2 and 2 project from a rectangular parallelepiped panel zone 1, and a T-type precast beam member B _T is a panel zone-integrated precast beam member in which three beam portions 2, 2, 2 project from a rectangular parallelepiped panel zone 1. That is, in the building A, all of the plurality of precast beam members arranged on the reference floor are the panel zone integrated precast beam members B _I , in which two or three beam portions 2 project from one panel zone 1. B _L and B _T.

The configuration of the precast beam members B _I , B _L and B _T will be described with reference to FIG. 2, but in FIG. 2, only the outer shape of the concrete portion is illustrated, and the illustration of the reinforcing bars is omitted.

Type I Precast beam member B _I shown in FIG. 2 (a), one of the panel zone 1, and two beam portions 2, 2 which are arranged so that in plan view I-shaped (linear), panel A short columnar column portion 3 (see FIG. 3A) provided on the zone 1 is provided. That is, the I-type precast beam member B _I, one of the beam portion 2 from one side of the panel zone 1 overhang has the other beam portion 2 projecting from one side face of the (one side surface parallel to the other side). The length of the beam portion 2 (distance from the side surface of the panel zone 1 to the tip surface of the beam portion 2) d ₁ and d ₂ are both equal to or greater than the width dimension (column dimension) D of the panel zone 1 (d ₁ ≧ 1D, d ₂ ≧ 1D).

L-type Precast beam member B _L shown in FIG. 2 (b) is intended to be arranged at the corners of the peripheral frame A1 (see FIG. 1), and one panel zone 1, a plan view L-shape The long and short beam portions 2 and 2 arranged in this manner, and a short columnar column portion (not shown) provided on the panel zone 1 are provided. That is, in the L-shaped precast beam member _BL , one beam portion 2 projects from one side surface of the panel zone 1, and the other beam portion 2 projects from an adjacent surface on one side surface (the other side surface orthogonal to the one side surface). . The lengths d ₁ and d ₂ of the beam part 2 are both equal to or larger than the width dimension (column dimension) D of the panel zone 1 (d ₁ ≧ 1D, d ₂ ≧ 1D).

A T-shaped precast beam member B _T shown in FIG. 2C includes one panel zone 1, three beam portions 2, 2, 2 arranged so as to have a T shape in plan view, and a panel zone 1. And a short columnar column (not shown) provided on the top. That is, in the T-shaped precast beam member B _T , the beam portion 2 projects from the three side surfaces of the panel zone 1. The lengths d ₁ , d ₂ , and d ₃ of the beam portion 2 are all equal to or greater than the width dimension (column dimension) D of the panel zone 1 (d ₁ ≧ 1D, d ₂ ≧ 1D, d ₃ ≧ 1D). It is.

As shown in FIG. 1, T type the precast beam member B _T, which panel zone 1 constitutes an outer frame A1 and (T-type precast beam member B _T for the outer circumference), the panel zone 1 the inner peripheral frame A2 (T-type precast beam member B _T for the inner periphery).

Among the T-type precast beam member B _T for the outer circumference, become a part of the outer peripheral frame A1, in addition to the panel zone 1 is the two beam portions 2 and 2 arranged linearly across the panel zone 1 . Of the three beam portions 2, 2 and 2 related to the T-shaped precast beam member B _T for the outer periphery, the two beam portions 2 and 2 arranged in a straight line are the I-type precast beam members B _I constituting the outer frame A1. Are connected to the beam portion 2 or the beam portion 2 of the L-shaped precast beam member _BL , and the remaining one beam portion 2 protrudes toward the inner peripheral frame A2, and is a T-shaped precast beam member for inner periphery. It is connected to the beam portion 2 of B _T.

Also, of the T-type precast beam member B _T for the inner periphery, becoming a part of the inner peripheral frame A2, in addition to the panel zone 1, two beam portions 2 arranged in an L shape across the panel zones 1, 2. Of the three beam portions 2, 2 and 2 related to the inner T-shaped precast beam member B _T , the two beam portions 2 and 2 arranged in an L-shape are I-shaped precast beams constituting the inner frame A2. The other beam portion 2 is connected to the beam portion 2 of the member B _I and extends toward the outer peripheral frame A1, and is connected to the beam portion 2 of the T-shaped precast beam member B _T for outer periphery. .

In the following description, when the precast beam members B _I , B _L , and B _T are not distinguished, the subscript attached to the symbol “B” is omitted.

  With reference to (a) of FIG. 3, the structure of the precast beam member B is demonstrated in detail. Incidentally, the precast beam member B shown in FIG. 3A is “I-type”.

  The precast beam member B is a half precast member, and is shipped from the factory in the state shown in FIG. Although illustration is omitted, the precast beam member B may be a full precast member.

  The panel zone 1 and the column part 3 are formed with reinforcing bar insertion holes 1a, 1a,... Penetrating them vertically, and a reinforcing bar (not shown) is formed so as to surround the reinforcing bar insertion holes 1a, 1a,. The bar is arranged. The column main reinforcement 4a of the precast column member P shown in FIG. 3B is inserted through the reinforcing bar insertion hole 1a. The reinforcing bar insertion hole 1a is formed by a sheath tube or the like.

  In addition to the beam main bars 2a and 2a, the beam part 2 is provided with stirrups and the like. Both ends of the lower beam main reinforcement 2a protrude from the end face of the concrete part, and the remaining part excluding both ends is embedded in the concrete part. The upper beam main reinforcement 2a is exposed to the outside except for a portion penetrating the panel zone 1.

  The column part 3 is a part which becomes a column base, and is located on the panel zone 1. The column portion 3 has a short column shape and is integrally formed with the panel zone 1. The lower end of the column portion 3 is coincident with the slab top end, and the upper end of the column portion 3 is positioned higher than the slab top end. A load receiving bolt 3 a is planted at the upper end portion of the column portion 3. The load receiving bolt 3a temporarily receives the precast column member P, and is inserted into an insert nut (not shown) embedded in the column portion 3 so that the level of the precast column member P placed thereon can be adjusted. It is screwed. Although the position and the number of the load receiving bolts 3a are not limited, in the present embodiment, the load receiving bolts 3a are provided at the four corners of the upper surface of the column portion 3.

  The configuration of the precast column member P will be described with reference to FIG. The precast column member P has a rectangular parallelepiped concrete portion 4. In addition to the column main bars 4a, 4a,..., Band bars (not shown) are arranged in the concrete portion 4. In the lower end portion of the concrete portion 4, a rebar joint sleeve 4 b is embedded, and in the upper end portion of the concrete portion 4, a load receiving bolt 4 c is implanted. The upper part of the column main bar 4b protrudes from the upper surface of the concrete part 4, and the lower end part of the column main bar 4a is inserted into the sleeve 4b by a predetermined length (fixing length). The load receiving bolt 4c temporarily receives the precast beam member B, and is inserted into an insert nut (not shown) embedded in the concrete portion 4 so that the level of the precast beam member B placed thereon can be adjusted. It is screwed. Although the position and the number of the load receiving bolts 4c are not limited, the load receiving bolts 4c are provided at the four corners of the upper surface of the concrete portion 4 in the present embodiment.

  Next, with reference to FIG. 4 thru | or FIG. 9, the construction method of the column beam frame using the precast beam member B and the precast column member P is demonstrated.

  In the following, the n-th floor is set as a reference floor, the subscript “n” is added to the precast beam member B and the precast column member P for the n floor, and the subscript “n” is applied to the precast beam member B and the precast column member P for the n + 1 floor. n + 1 ". The (n + 1) th floor has the same configuration as the nth floor (reference floor).

As shown in FIG. 4 (a), the column beam frame construction method according to the present embodiment includes a column member arrangement step, a beam member arrangement step, a floor member arrangement step, a slab reinforcement step, and slab concrete. And a placing process. In the multi-story building A, the above steps are executed not only on the nth floor (reference floor) but also on the same floor (n + 1 floor or higher). The n-th column member arrangement step, the beam member arrangement step, and the floor member arrangement step are performed prior to the n + 1-th column member arrangement step. In addition, the n-th floor slab arrangement process is performed in parallel with the n + 1-th column member arrangement process and the beam member arrangement process, and the n-th floor slab concrete placing process is performed in parallel with the n + 1-th floor beam member arrangement process. Done. If necessary, the upper floor precast column member P _{n + 1} and the precast beam member B _{n + 1} may be installed before constructing the n-th floor slab.

FIG. 5 shows a state after the column member arranging step, the beam member arranging step, and the floor member arranging step are executed on the nth floor.
panel zone 1 of the precast beam member B _n of n ulcers is by the beam fixture 7 are temporarily fixed to the upper end of the precast pillar member P _n of n ulcers, the beam portion 2 of the precast beam members B _n are The support member 6 is temporarily supported by the precast column member _Pn . Pillar main reinforcement 4a precast Columns P _n is precast beam members B _n rebar insertion holes 1a have been inserted into ((a) see FIG. 3) protrudes from the pillar portion 3. The precast beam member _Bn is arranged in a state of being spaced from another adjacent precast beam member _Bn, and the mold 9 (only the bottom plate is shown in FIG. (Not shown) is arranged. Further, the beam main reinforcing bar 2a is connected to the beam main reinforcing bar 2a of another precast beam member _Bn through a reinforcing bar joint 2b. There is no restriction | limiting in the kind of rebar joint 2b, In addition to a mechanical joint, a lap joint, a splice lap joint, an enclosed weld joint, etc. can be applied.
Reference numeral S _n in FIG. 5 is a precast floor member of n ulcers installed by floor member arrangement step. Precast floor member S _n is the Precast members made of reinforced concrete which also serves as a slab form, the floor slab by a slab of concrete integral with the cast-in-place thereon.

As shown in FIG. 6, the n + 1 floor column member placement step places the n + 1 floor precast column member P _{n + 1} on the column portion 3 of the n floor precast beam member B _n , and the precast column member P _This is a step of temporarily fixing the lower end portion of _{n + 1} to the column portion 3.
The precast column member P _{n + 1} is placed on the load receiving bolt 3a (see (a) of FIG. 3). Further, by adjusting the protruding length of the load receiving bolt 3a as required, the level adjustment and the verticality adjustment of the precast column member P _{n + 1} are performed.

As shown to (a) of FIG. 4, the n + 1 floor pillar member arrangement | positioning process is performed prior to the nth floor slab concrete placement process. That is, the column member arrangement process on the (n + 1) th floor starts before slab concrete is placed on the nth floor. In this embodiment, after the n-th floor crane work (the n-th column member arrangement process, the beam member arrangement process, and the floor member arrangement process) is completed, the n + 1-th column member arrangement process is started immediately, The column member arranging step and the n-th slab bar arrangement step are performed in parallel.
In addition, it is not necessary to carry out the crane work frequently to carry in the reinforcing bars, and since the crane work is rarely necessary after carrying in the reinforcing bars, both steps can be performed even if the column member placement process and the slab placement process are performed in parallel. There is no delay.

As shown in FIG. 6, in the column member arrangement step of the present embodiment, the precast column member P _{n + 1} is temporarily fixed to the precast beam member B _n using a temporary column fixing jig 5.

The column fixing jig 5 surrounds a boundary portion between the column portion 3 and the precast column member P _{n + 1} (a gap secured between the upper surface of the column portion 3 and the lower surface of the precast column member P _{n + 1} ). It fixes to the lower end part of the pillar part 3 and the precast pillar member _{Pn + 1} . The lower edge of the column fixing jig 5 is made to coincide with the top of the slab or is positioned above the top of the slab. The column fixing jig 5 not only serves as a mold for filling the filler, but also serves as a support member that prevents the precast column member P _{n + 1} from tipping before the filler is cured, and thus has high rigidity and strength. It forms with members (for example, steel materials, such as channel steel and H-section steel). Although illustration is omitted, an insert nut is embedded in the lower end portion of the column portion 3 and the precast column member P _{n + 1} . A bolt inserted through the column fixing jig 5 is screwed into the insert nut.
In the present embodiment, the column fixing jig 5 that also serves as a mold is illustrated, but it is not essential to serve as a mold. If the column fixing jig 5 is not used as a mold, a dedicated mold may be installed separately.

When the column member arrangement process on the (n + 1) th floor is completed, the process moves to the beam member arrangement process on the (n + 1) th floor.
Before moving to the beam member arranging step, a filler (for example, grout or high-fluidity mortar) is injected into the boundary portion between the column portion 3 of the precast beam member _Bn and the precast column member _{Pn + 1.} However, in this embodiment, since the precast column member P _{n + 1} is temporarily fixed by the column fixing jig 5, even before the filler is injected or before the injected filler is cured, The beam member arrangement process on the (n + 1) th floor can be performed. The column fixing jig 5 is removed after the filler is cured.

As shown in FIG. 7, the n + 1 floor beam member arranging step places the panel zone 1 of the n + 1 floor precast beam member B _{n + 1 on} the n + 1 floor precast column member P _{n + 1} , As shown in FIG. 4, the panel zone 1 is temporarily fixed to the upper end portion of the precast column member P _{n + 1} .
The precast beam member B _{n + 1} is placed on the load receiving bolt 4a (see FIG. 3B).

As shown in FIG. 4A, in the present embodiment, the beam member placement step on the (n + 1) th floor starts before the nth floor slab concrete placing step, and from the beginning of the beam member placement step to the middle. Is performed in parallel with the slab arrangement process on the nth floor. After the slab arrangement process on the nth floor is completed, the slab concrete placing process on the nth floor is performed while performing the beam member arrangement process on the (n + 1) th floor.
In addition, since slab concrete is pumped to the placement site through the pressure feed pipe, almost no crane work is required. Therefore, even if the beam member placement step and the slab concrete placement step are performed in parallel, both steps are delayed. Never do.

As shown in FIG. 8, in the beam member arranging step of the present embodiment, the level of the precast beam member B _{n + 1} is adjusted using the temporary support member 6 and the temporary beam fixing jig 7 is used. The precast beam member B _{n + 1} is temporarily fixed to the precast column member P _{n + 1} .

The support member 6 rises obliquely upward from the side surface of the n + 1 floor precast column member P _{n + 1} and is joined to the lower surface of the beam portion 2. The support member 6 has a length-adjustable configuration (for example, a screw mechanism or a jack). When the length of the support member 6 is adjusted while the beam portion 2 is temporarily supported by the support member 6, the level of the precast beam member B _{n + 1} can be adjusted.
In the present embodiment, only one support member 6 is disposed and only one beam portion 2 is temporarily supported. However, the number of support members 6 is not limited. Although illustration is omitted, a plurality of support members 6 may be arranged to temporarily support the plurality of beam portions 2. In place of the support member 6, may be temporarily support the n + 1 precast beam member B _{n + 1} of ulcers in shoring erected on precast beam members B _n of n ulcers.

The beam fixing jig 7 straddles the boundary portion between the precast column member P _{n + 1} and the panel zone 1 (the gap secured between the upper surface of the precast column member P _{n + 1 and} the lower surface of the panel zone 1). And fixed to the upper end portion of the precast pillar member P _{n + 1} and the panel zone 1. Although the beam fixing jig 7 is a temporary member, it serves as a support member that prevents the precast beam member B _{n + 1} from falling, and thus a member having high rigidity and strength (for example, a grooved steel, an H-shaped steel, an angle steel) Etc.). Although illustration is omitted, an insert nut is embedded in the upper end portion of the precast column member P _{n + 1} and the panel zone 1. A bolt inserted into the beam fixing jig 7 is screwed to the insert nut. Note that a filler mold 8 is disposed at the boundary between the precast column member P _{n + 1} and the panel zone 1.

When the n-th floor slab barbing step (step of laying the slab barb 2c on the _n- floor precast floor member Sn) is completed during the n + 1 floor beam member placement step, as shown in FIG. Next, the slab concrete placing process on the nth floor is performed. In the slab concrete placing step, not only the slab concrete C is placed on the _n- floor precast floor member Sn, but also on the n-floor precast beam member B _n and adjacent precast beam members B _n , Concrete is also placed between _Bn (beam joint J).

  When the n + 1 floor beam member placement step is completed, as shown in FIG. 4A, the n + 1 floor floor member placement step is performed, and the n + 1 floor floor member placement step and the beam member placement step are performed in parallel with the n + 1 floor. The slab reinforcement process and the slab concrete placement process are performed. The same applies to the n + 2th floor and after.

In addition, in the present embodiment, the beam fixing treatment may be performed before the transition to the floor member arrangement process, although the filler may be injected into the boundary portion between the precast column member P _{n + 1} and the precast beam member B _{n + 1.} Since the precast beam member B _{n + 1} is temporarily fixed by the tool 7, the n + 1 floor member arrangement process can be performed even before the filler is injected or before the injected filler is hardened. . The support member 6, the beam fixing jig 7, and the mold 8 are removed after the filler is cured.

According to the method for constructing the column beam frame according to the present embodiment, the precast column member P _{n + 1} and the precast beam member B _{n + 1} for the _{n + 1} floor can be arranged without waiting for the completion of the nth floor slab. Therefore, compared with the case where the column member arrangement step and the beam member arrangement step are performed after the completion of the n-th floor slab (see FIG. 4B), the operating rate of the lifting machine is improved, and thus the work period is shortened. It becomes possible. That is, according to the construction method of the column beam frame according to the present embodiment, the n + 1 floor column member placement step and the beam member placement step can be performed in parallel with the nth floor slab reinforcement step and the slab concrete placing step. Therefore, as shown in FIG. 4, if two days are required for the slab arrangement process and the slab concrete placing process on each floor, the work period can be shortened by two days per floor.

  In addition, since the column fixing jig 5 can be used as a mold for a filler, it is possible to improve the efficiency of the work. In addition, in this embodiment, since the column fixing jig 5 is disposed above the top end of the slab, the column fixing jig 5 is not buried in the slab concrete. Becomes easy, and the column fixing jig 5 can be reused.

  In addition, since the support member 6 is used in the beam member arranging step, the precast beam member B can be temporarily supported stably and the level can be easily adjusted.

  Moreover, in the building A, the panel zone-integrated precast beam member B is used on the reference floor and the floor having the same configuration as the reference floor. Therefore, the precast rate is increased, and the work period can be shortened. Further, the precast beam member B has a cross-shaped precast beam member because the arrangement form of the beam portions 2 projecting from one panel zone 1 is any one of “I type”, “L type”, and “T type”. The width dimension is smaller than In other words, according to the building A, all of the plurality of precast beam members B used for the reference floor and the floor having the same configuration as the reference floor have a shape suitable for transporting by truck (width dimension that can be loaded on the truck). Therefore, the carrying work becomes easy.

In the embodiment described above, although the panel zones 1 illustrated only includes Type I Precast beam member B _I and T-precast beam member B _T one, from "one panel zone two or three beams The “precast beam member protruding from the portion” includes “II type” precast beam member B _II shown in FIG. 10A, “TT type” precast beam member B _TT shown in FIG. It is shown in (c) of FIG. "IT type" precast beam member B _IT, precast beam member B _IL of "IL type" shown in the same figure (d), shown in the same figure (e) of "TL-type" The precast beam member B _TL and the “LL type” precast beam member B _LL shown in FIG.

More particularly, II-type precast beam member B _II shown in FIG. 10 (a), the two panels zones 1,1, viewed from I-shaped three arranged to exhibit a (linear) Beam portions 2, 2 and 2 and short columnar column portions 3 provided on each panel zone 1 are provided. In the II-type precast beam member B _II , focusing on one panel zone 1, two beam portions 2 and 2 project from one panel zone 1, and the arrangement of the beam portions 2 projecting from one panel zone 1 The form is I-shaped (I type) in plan view.

Moreover, TT-type precast beam member B _TT shown in (b) of FIG. 10, the two panels zones 1,1, five beam portions 2, 2, ... and, provided on each panel zone 1 short And a columnar column portion 3. Also in the TT type precast beam member _BTT , when attention is paid to one panel zone 1, three beam portions 2, 2, 2 project from one panel zone 1, and a beam portion 2 projects from one panel zone 1. The arrangement form is a T-shape (T-type) in plan view.

The IT-type precast beam member B _IT shown in FIG. 10C has two panel zones 1, 1, four beam portions 2, 2... And a short columnar shape provided on each panel zone 1. A column part 3 is provided. Also in the IT-type precast beam member B _IT , when one panel zone 1 is focused, two or three beam portions 2 project from one panel zone 1, and the beam portion 2 projects from one panel zone 1. The arrangement form is an I shape (I type) in plan view or a T shape (T type) in plan view.

IL-type Precast beam member B _IL shown in (d) of FIG. 10, the two panels zones 1,1, the three beam portions 2, 2, ... and the short columnar provided on each panel zone 1 A column part 3 is provided. Also in IL type precast beam member B _IL, focusing on one panel zone 1, and from one panel zone 1 has overhanging two beam portions 2, the arrangement of the beam portion 2 projecting from one panel zone 1 It has an I shape (I type) in plan view or an L shape (L type) in plan view.

TL type precast beam member B _TL shown in (e) of FIG. 10, the two panels zones 1,1, four beam portions 2, 2, ... and the short columnar provided on each panel zone 1 A column part 3 is provided. In the TL-type precast beam member _BTL , focusing on one panel zone 1, two or three beam portions 2 project from one panel zone 1, and the beam portion 2 projecting from one panel zone 1 The arrangement form is L-shaped in plan view (L type) or T-shaped in plan view (T type). Of the four beam portions 2, 2,..., The two beam portions 2, 2 arranged in a direction orthogonal to the beam portion 2 connecting the two panel zones 1, 1 are in the same direction (FIG. 10). (E) is protruding toward the right).

LL-type Precast beam member B _LL shown in (f) of FIG. 10, the two panels zones 1,1, and three beam portions 2,2,2, short columnar provided on each panel zone 1 A column part 3 is provided. In the LL-type precast beam member _BLL , focusing on one panel zone 1, two beam portions 2 project from one panel zone 1, and the arrangement form of the beam portions 2 projecting from one panel zone 1 is as follows. It is L-shaped (L shape) in plan view. Of the three beam portions 2, 2 and 2, two beam portions 2 and 2 arranged in a direction orthogonal to the beam portion 2 connecting the two panel zones 1 and 1 are in the same direction (FIG. 10). (F) in the right direction).

  Although not shown in the drawings, the method of constructing the column beam frame according to the present invention is a cross-shaped precast beam member in which four beam portions project from one panel zone or a single beam precast beam consisting of only one beam portion. The present invention can also be applied to buildings including members.

P ( _Pn , _{Pn + 1} ) Precast column member B ( _Bn , _{Bn + 1} ) Precast beam member 1 Panel zone 2 Beam portion 3 Column portion 5 Column fixing jig

Claims (3)

A method for constructing a column beam frame using a precast beam member in which a beam portion projects from a panel zone and a short columnar column portion is provided on the panel zone,
A column member arrangement step of placing a precast column member for n + 1 floor on a column portion of a precast beam member for n floors, and temporarily fixing a lower end portion of the precast column member to the column portion;
n + 1 wherein placing a panel zone of the precast pillar member to n + 1 ulcer of precast beam member of ulcers, organic and beam member disposing step of temporarily fixing the panel zone to the upper end of the precast pillar member of the (n + 1) ulcers And
The panel zone of the precast beam member for the n floor is temporarily fixed to the upper end of the precast column member for the n floor , and before placing the slab concrete on the n floor, the column member arranging step is performed. It started,
The beam member arranging step is started in a state where a lower end portion of the n + 1 floor precast column member is temporarily fixed to the column portion of the nth floor precast beam member . Construction method.   In the column member arranging step, a column fixing jig is arranged so as to surround a boundary portion between the column portion and the precast column member, and the column fixing jig is fixed to the column portion and the precast column member. The method for constructing a column beam frame according to claim 1, wherein a lower end portion of the precast column member is temporarily fixed to the column portion. A method of constructing a column beam frame using a precast beam member in which two or three beam portions project from one panel zone and a short columnar column portion is provided on the panel zone,
A column member arrangement step of placing a precast column member for n + 1 floor on a column portion of a precast beam member for n floors, and temporarily fixing a lower end portion of the precast column member to the column portion;
n + 1 wherein placing a panel zone of the precast pillar member to n + 1 ulcer of precast beam member of ulcers, organic and beam member disposing step of temporarily fixing the panel zone to the upper end of the precast pillar member of the (n + 1) ulcers And
The panel zone of the precast beam member for the n floor is temporarily fixed to the upper end of the precast column member for the n floor , and before placing the slab concrete on the n floor, the column member arranging step is performed. It started,
The beam member arranging step is started in a state where a lower end portion of the n + 1 floor precast column member is temporarily fixed to the column portion of the nth floor precast beam member . Construction method.

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