JP4998198B2 - Mechanical joint grout filling method, PC member joining method, column beam joint construction method, column beam joint construction method, floor member and PC wall member joining method, PC member joining structure, column beam joining Structure, column beam joint structure, floor / wall joint structure - Google Patents

Mechanical joint grout filling method, PC member joining method, column beam joint construction method, column beam joint construction method, floor member and PC wall member joining method, PC member joining structure, column beam joining Structure, column beam joint structure, floor / wall joint structure Download PDF

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JP4998198B2
JP4998198B2 JP2007269431A JP2007269431A JP4998198B2 JP 4998198 B2 JP4998198 B2 JP 4998198B2 JP 2007269431 A JP2007269431 A JP 2007269431A JP 2007269431 A JP2007269431 A JP 2007269431A JP 4998198 B2 JP4998198 B2 JP 4998198B2
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joint
column
grout
reinforcing bar
mechanical
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JP2009097223A (en
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直人 藤生
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株式会社大林組
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Description

  The present invention relates to a method for filling grout into a mechanical joint having a reinforcing bar insertion hole opened upward.

  Conventionally, in order to shorten the construction period, a reinforced concrete structure is constructed using a PC member. As a construction method using such a PC member, as shown in FIG. 19, the joint portion 38 and the beam portion 39 are integrally formed, and a PC beam / finish having a reinforcing bar through hole 31 for penetrating the column main reinforcement is provided. The mouth member 30 is built on the upper part of the PC column member 40 provided with the mechanical joint 42 on the head, and the PC column member 20 with the column main reinforcement 21 protruding on the lower surface is provided. A method of constructing a PC column beam structure by penetrating through the through hole 31 of the joint member 30 and being inserted into the mechanical joint 42 of the PC column member 40 is described (for example, a patent) Reference 1).

Here, in the above construction method, the grout filling into the mechanical joint 42 is performed so that the grout inlet 42B provided on the side surface of the mechanical joint 42 and the surface of the PC column member 40 below are connected in advance. An injection hole is provided by a PVC pipe or the like, and the injection is performed through this injection hole. However, since there are a large number of mechanical joints 42 corresponding to the number of column bars, there is a problem that it takes much time to perform grout injection work. Therefore, the inventors connect a distribution hose 91 extending from the grout inlet 42B of each mechanical joint as shown in FIG. 20, and lower the grout distributor 90 that distributes the injected grout to these distribution hoses 91. A method has been proposed in which a grout distributor 90 is filled while distributing grout to each mechanical joint 42B (Japanese Patent Application No. 2006-81970).
Japanese Patent No. 3837390

  The present invention has been made to improve this construction method, so that grout can be filled in a mechanical joint in which a reinforcing bar insertion opening is opened upward without embedding a distribution hose or a PVC pipe in a PC member. The purpose is to do.

According to the mechanical joint grout filling method of the present invention, the grout is embedded in the mechanical joint embedded in the lower concrete member so that the reinforcing bar insertion opening is opened on the upper surface of the lower concrete member joined to the upper concrete member. The mechanical joint is a sleeve joint, and the grout is passed through the joint between the upper concrete member and the lower concrete member and is transmitted along the upper surface of the lower concrete member. characterized in that from the steel bar insertion opening Komu flowed into the inside of the sleeve joint.

In the PC member joining method of the present invention, the lower PC member in which the mechanical joint is embedded so that the reinforcing bar insertion opening is opened on the upper surface and the upper PC member in which the reinforcing bar protrudes from the lower surface are joined. The mechanical joint is a sleeve joint, and the upper PC member is built above the lower PC member so that the reinforcing bar protruding from the lower surface is inserted into the sleeve joint. And pours the grout through the joint between the upper PC member and the lower PC member so as to travel along the upper surface of the lower PC member, and continuously fills the joint and the sleeve joint with the grout. And

In addition, the method for constructing the beam-column joint of the present invention is a PC in which a lower PC column member in which a mechanical joint is embedded so that a reinforcing bar insertion opening is opened on the upper surface and a reinforcing bar through hole extending in the vertical direction is formed. A method of constructing a column beam joint by joining a joint member and an upper PC column member provided with a column main reinforcement provided so as to protrude downward from the lower surface, wherein the mechanical joint includes: It is a sleeve joint, and the above-mentioned PC column member is installed in the upper part of the above-mentioned PC joint member. An upper column member erection step in which a main bar penetrates the reinforcing bar through-hole and a tip of the column main bar is inserted into a sleeve joint of the lower PC column member, and a grout is connected to the lower PC. Through the joint between the column member and the PC joint member, Poured as running down the upper surface of serial lower PC Columns, characterized in that it comprises a grout filling step of filling the grout continuously to the joint and the sleeve joint.

In the method for constructing the beam-column joint described above, in the grout filling step, the joint between the reinforcing bar through-hole and the PC joint member and the upper PC column member is continuous with the sleeve joint and the joint. Also, grout may be filled.

Further, the method for constructing the column beam joint of the column beam frame according to the present invention is a method for constructing the column beam joint of the column beam frame, in which the mechanical joint is embedded so that the reinforcing bar insertion opening is opened on the upper surface. The lower PC column member is installed, and the upper PC column member with the column main bar protruding from the lower surface is inserted into the mechanical joint, and the upper PC column member and the lower side are inserted into the mechanical joint. It is built so that a space corresponding to the column beam joint is formed between the PC column members, and the grout is caused to flow along the upper surface of the lower PC column member and flows into the mechanical joint. The concrete constituting the column beam joint is cast, and the mechanical joint is a sleeve joint .

  The PC wall member joining method of the present invention is a method of joining a floor member in which a mechanical joint is embedded so that a reinforcing bar insertion opening is opened on the upper surface and a PC wall member in which the reinforcing bar protrudes from the lower surface. The PC wall member is built above the floor member such that a reinforcing bar protruding from the lower surface is inserted into the mechanical joint, and a grout is disposed between the floor member and the PC wall member. The joint is poured into the upper surface of the floor member, and grout is continuously filled in the joint and the mechanical joint.

  Further, according to the method of joining a pair of wall members of the present invention, the lower wall member in which the mechanical joint is embedded so that the reinforcing bar insertion opening is opened on the upper surface, the upper PC wall member in which the reinforcing bar protrudes from the lower surface, The upper PC wall member is built above the lower wall member such that a reinforcing bar protruding from the lower surface is inserted into the mechanical joint, and a grout is Poured through the joint between the wall member and the upper PC wall member so as to travel along the upper surface of the floor member, the joint and the mechanical joint are continuously filled with grout.

  According to the present invention, the grout can be filled into the mechanical joint from the reinforcing bar insertion opening opened on the upper surface, so that it is not necessary to embed a distribution hose or a PVC pipe in the PC member, and the PC member is manufactured. The labor can be reduced, the amount of grout required can be reduced, and the distribution hose and the PVC pipe are not left behind, thereby eliminating the risk of structural cross-sectional defects.

Hereinafter, an embodiment of a grout filling method for a mechanical joint according to the present invention will be described with reference to the drawings.
1-3 is a figure for demonstrating the filling method of the grout of the mechanical coupling of this embodiment. As shown in FIG. 1, a rebar 11 is embedded in the concrete member 10 so as to extend in the vertical direction, and a mechanical joint 12 is connected to the tip of the rebar 11, and a rebar insertion port 12A of the mechanical joint 12 is An opening is formed on the upper surface of the concrete member 10. A reinforcing bar 13 extending in the vertical direction is inserted into the reinforcing bar insertion opening 12 </ b> A of the mechanical joint 12. The grout filling method of the present embodiment is used when grout is filled in the mechanical joint 12 in order to join these reinforcing bars 11 and 13.

  In the present embodiment, as shown in FIG. 2, the grout 14 is poured onto the upper surface of the concrete member 10 toward the reinforcing bar insertion port 12 </ b> A of the mechanical joint 12. The grout 14 reaches the rebar insertion port 12A of the mechanical joint 12 through the upper surface of the concrete member 10, and flows into the mechanical joint 12 from the rebar insertion port 12A due to gravity. The injection of the grout 14 is continued until the grout 14 reaches the edge of the reinforcing bar insertion port 12A of the mechanical joint 12 and the grout 14 overflows from the reinforcing bar insertion port 12A, as shown in FIG. When it is confirmed that the grout 14 overflows from the reinforcing bar insertion opening 12A and the grout 14 is completely filled in the mechanical joint 12, the injection of the grout 14 is stopped. In this way, the grout 14 injected into the mechanical joint 12 is hardened, whereby a joint structure 15 is formed by the mechanical joint 12 and the reinforcing bars 11 and 13 are joined.

Here, the inventors have confirmed by experiments that the joint structure 15 joined by the above method has a predetermined performance, and will be described below.
In this experiment, when the pair of reinforcing bars 11 and 13 are joined by the mechanical joint 12 provided so that the reinforcing bar insertion opening 12A is opened upward as shown in FIG. 4, the side portions of the mechanical joint 12 are provided. When the grout 14 is filled from the grout inlet 16 and a pair of reinforcing bars 11 and 13 are joined (hereinafter referred to as a conventional method), after filling the grout 14 from the grout inlet 16 to half of the mechanical joint 12, A test body 15 is prepared for each of the test body 15 when the grout 14 is poured from the reinforcing bar insertion opening 12A (hereinafter referred to as a flow-in method) and when the grout 14 is poured from the reinforcing bar insertion opening 12A opened upward. The joint performance test and the filling state of the grout were confirmed.

FIG. 5 is a table showing materials used for the test body 15 used in this experiment. As shown in the figure, the reinforcing bars 11 and 13 are JIS standard (SD490 D41) reinforcing bars, the joints are mortar-filled sleeve joints, and the grout 14 is a mortar for sleeve joints. Used tap water.
The joint performance test was conducted according to the Ministry of Construction Notification No. 1463 Reinforcement Joint Structure Method (7) Reinforcement Joint Performance Judgment Criteria Fourth Elasticity / Plastic Area Positive / Negative Repeat Test.

  FIG. 6 is a table showing the determination criteria, and FIG. 7 is a table showing the test results of each test body 15. As shown in the figure, it was confirmed that the class A performance in the above criteria was secured for all the test bodies 15. Moreover, when the mechanical joint 12 was cut | disconnected about each test body 15 and the filling state of the grout 14 was confirmed, it was confirmed that the grout 14 was filled with each test body 15 reliably.

  As described above, the grout 14 is filled from the reinforcing bar insertion port 12A when the pair of reinforcing bars 11 and 13 are joined by the mechanical joint 12 provided so that the reinforcing bar insertion port 12A is opened upward in the above test. Even when the pair of reinforcing bars 11 and 13 are joined, it was confirmed that sufficient joint performance was ensured.

  As described above, according to the grout filling method of the mechanical joint of the present embodiment, the grout 14 is caused to flow along the upper surface of the concrete member 10 and is poured by gravity from the reinforcing bar insertion opening 12A of the mechanical joint 12 opened on the upper surface. Therefore, it is not necessary to arrange a hose or a PVC pipe to provide the injection hole so as to connect the surface of the member and the grout injection port of the mechanical joint 12 to the concrete member 10. For this reason, it can prevent that a hose and a vinyl chloride pipe remain in the concrete member 10, and it becomes a section loss. In addition, when filling the grout by providing the injection hole in the concrete member 10, it is necessary to fill the grout also in the injection hole. The required grout volume can be reduced.

In the following, the grout filling method of the present invention is performed by connecting a PC column member that constitutes a column and a PC beam / joint member that constitutes a beam and a joint, thereby connecting the column beam joint of a reinforced concrete column beam structure. The case where it is applied when constructing is described.
FIG. 8 is a view showing the vicinity of the column beam joint portion of the column beam frame constructed by joining the upper and lower PC column members 20, 40 and the PC beam / joint member 30 before joining. Shows the state.
As shown in the figure, the lower PC column member 40 is connected to a plurality of column main bars 41 embedded in the member so as to extend in the vertical direction, and to the upper ends of the column main bars 41 and has a reinforcing bar insertion opening 42A on the upper surface. Is provided with a mechanical joint 42 provided so as to open, and a grout injection hole 43 formed so as to connect the side surface and the upper surface.

  The PC beam / joint member 30 is a member in which the PC member constituting the joint portion 38 and the beam portion 39 in the column beam frame is integrally constructed, and is vertically moved to a position corresponding to the column line of the joint portion 38. Reinforcing bar through holes 31 formed to extend are provided. In addition, the reinforcing bar through-hole 31 can be easily formed by arranging a sheath tube at a position where it hits the column bar when the PC beam / joint member 30 is manufactured, for example.

  The upper PC column member 20 is embedded in the member so as to extend in the vertical direction, and includes a column main bar 21 provided with an end projecting from the lower surface, and a hole 22 communicating from the side surface of the member to the lower surface. The portion protruding from the lower surface of the column main bar 21 penetrates the reinforcing bar through hole 31 of the PC beam / joint member 30 when the upper PC column member 20 is built, as will be described later, and the lower PC. The column member 40 has such a length that the tip reaches the mechanical joint 42. Moreover, the hole 22 is provided in order to confirm that the grout is filled up to the air vent when filling the grout and the upper joint, as will be described later.

  When constructing the column beam frame, first, as shown in FIG. 9, the PC beam / joint member 30 is built on the upper part of the lower PC column member 40, and the column main reinforcement of the upper PC column member 20 is further constructed. 21 is inserted into the mechanical joint 42 of the lower PC column member 40 so as to pass through the reinforcing bar through hole 31 of the PC beam / joint member 30. The PC pillar member 20 is installed.

  In order to integrate the lower PC column member 40, the PC beam / joint member 30, and the upper PC column member 20 built in this way, a machine embedded in the lower PC column member 40 The joint 50, the joint 50 between the lower PC column member 40 and the PC beam / joint member 30 (hereinafter referred to as the lower joint), the rebar through hole 31 of the PC beam / joint member 30, and the upper The joint 60 between the PC pillar member 20 and the PC beam / joint member 30 (hereinafter referred to as the upper joint) must be filled with grout.

In the present embodiment, grout is filled in these portions as follows.
9-13 is a figure for demonstrating the flow filled with grout.
First, in filling the grout, a mold is applied to the outer periphery of the lower joint 50 and the upper joint 60.
Next, as shown in FIG. 10, a grout 70 is injected into a grout injection hole 43 provided in the lower PC column member 40. The grout 70 injected into the grout injection hole 43 flows out into the lower joint 50. The grout 70 that has flowed into the lower joint 50 travels along the upper surface of the lower PC column member 40 and flows into the mechanical joint 42 by gravity from the reinforcing bar insertion opening 42A that opens on the upper surface. Furthermore, by continuing to inject the grout 70 into the grout injection hole 43, the grout 70 can be filled into the mechanical joint 42 as described with reference to FIG.

  After the grout 70 is filled in all the mechanical joints 42, the grout 70 is filled in the lower joint 50 when the injection of the grout 70 is further continued. In this way, as shown in FIG. 11, the grout 70 in the lower joint 50 can be filled continuously with the mechanical joint 42.

  Further, when the grout 70 is continuously injected from the injection hole 43, the grout 70 flows into the reinforcing bar through-hole 31 from the lower joint 50 as shown in FIG. In this manner, the grout 70 can be filled into the reinforcing bar through hole 31 continuously in the lower joint 50.

  Further, the grout 70 is continuously injected from the injection hole 43, and when the grout 70 reaches the upper part of the reinforcing bar through hole 31, the grout 70 flows into the joint 60 above the upper part of the reinforcing bar through hole 31. In this way, the grout 70 can be filled into the upper joint 60 continuously from the reinforcing bar through hole 31.

  Further, when the grout 70 is continuously injected, the upper joint 60 is filled with the grout 70 as shown in FIG. When the upper joint 60 is filled with the grout 70, the grout 70 overflows from the hole 22 provided in the upper PC column member 20. Thereby, it can be confirmed that the filling of the grout 70 up to the upper joint 60 is completed, and the injection of the grout 70 is terminated when the grout 70 overflows from the hole 22.

  Thus, by applying the grout filling method of the present embodiment to the construction of a column beam frame using a PC member, in addition to the above effects, the mechanical joint 42, the joint 50 below, and the reinforcing bar The grout 70 can be continuously filled in the through hole 31 and the upper joint 60.

  Further, since the grout injection hole 43 provided in the lower PC pillar member and the lower joint 50 can be opened and the grout 70 can be filled in all the mechanical joints 42, the grout distributor as in the prior art. This eliminates the need to provide a cost and can reduce costs.

  In the above embodiment, the lower PC pillar member 40 is provided with the grout injection hole 43 extending from the side surface to the upper surface, and the grout 70 is injected into the lower joint 50 through the grout injection hole 43. However, the present invention is not limited to this. For example, as illustrated in FIG. 14, the grout 70 may be directly injected into the lower joint 50. Moreover, it is good also as what provides the grout injection hole which leads to the lower surface from the side of PC beam and the joint member 30, and injects grout through this grout injection hole.

  Furthermore, grout may be injected into the upper joint 60. In this case, the grout 70 injected into the upper joint 60 is injected into the lower joint 50 through the reinforcing bar through-hole 31, and the mechanical joint 42, the lower joint 50, the reinforcing bar as in the above embodiment. Grout can be continuously injected into the through hole 31 and the upper joint 60. Even when the grout is injected into the upper joint 60, the grout may be directly injected into the upper joint 60, or the joint above the side surface of the upper PC pillar member 20 or the PC beam / joint member 30 may be injected. Grout injection holes reaching 60 can be provided, and grout can be injected through the grout injection holes.

  Further, in this embodiment, the grout discharge hole 22 is provided so as to communicate from the lower surface to the side surface of the upper PC pillar member 20, and air bleeding and grout filling are confirmed through the grout discharge hole 22. Alternatively, a grout discharge hole may be provided so as to communicate from the side surface of the PC beam / joint member 30 to the upper surface, and air bleeding and grout filling may be confirmed through the grout discharge hole, or directly from the side of the upper joint 60. You may confirm air bleeding and grout filling.

  In the present embodiment, the case where the lower PC column member 40, the PC beam / joint member 30, and the upper PC column member 20 are joined has been described. However, the present invention is not limited to this, and for example, as shown in FIG. The lower PC column member 140 in which the mechanical joint 142 is embedded so that the reinforcing bar insertion opening 142A is opened on the upper surface and the upper PC member 120 provided so that the column main bar 121 protrudes from the lower surface are joined to each other. Also in this case, the grout filling method of the present invention can be applied. In this case, the upper PC column member 120 is installed so that the tip of the column main bar 121 of the upper PC column member 120 reaches the mechanical joint 142, and the upper PC column member 120 and the lower PC column member 140 are built. The grout 70 is poured into the joint 150 between the two. The grout 70 poured into the joint 150 travels along the upper surface of the upper PC column member 120 and flows into the mechanical joint 142 by gravity. In this way, the grout 70 can be filled into the mechanical joint 142, and further, by continuing to inject the grout 70 into the joint 150, the filling of the grout 70 into the joint 150 is continued. The grout 70 can be injected into the inside. By hardening the grout 70, the column main bars 121 and 141 are joined, and the upper and lower PC column members 120 and 140 are joined.

  In the embodiment shown in FIG. 15, the grout 70 is directly injected into the joint 150. However, the present invention is not limited to this, and the grout that leads from the side to the joint 150 is connected to the upper PC pillar member 120 or the lower PC pillar member 140. An injection hole may be provided, and the grout 70 may be injected through the grout injection hole.

  In addition, in the embodiment shown in FIG. 15, the description of air venting at the time of grout filling is omitted, but as in the above-described embodiment, the joint is formed from the side surface of the upper PC column member 120 or the lower PC column member 140. A grout discharge hole may be provided so as to communicate with 150, and air may be vented through the grout discharge hole, or air may be vented directly from the side of the joint 150.

  Further, in the embodiment described with reference to FIGS. 8 to 13, the lower PC column member 40, the PC beam / joint member 30, and the upper PC column member 20 are joined to each other to thereby connect the column beam frame. However, the present invention is not limited to this, and as shown in FIG. 16, the PC member 280 in which the lower PC column member 240 and the PC beam / joint member 230 are integrated, and the upper PC column member 220. A column beam frame may be constructed by joining together. In this case, the mechanical joint 232 is embedded in the PC member 280 so that the reinforcing bar insertion opening 232A is opened on the upper surface, and the main column bar 221 is embedded in the upper PC column member 220 so as to protrude from the lower surface. Keep it. Then, after the upper PC column member 220 is built so that the column main reinforcement 221 is inserted into the reinforcing bar insertion port 232A, the grout 70 is poured directly into the joint 260. In addition, air removal at the time of grout filling is performed through the grout discharge hole 223.

  The grout 70 flowing into the joint 260 flows into the mechanical joint 232 along the upper surface of the lower PC column member 240. Furthermore, by continuing the grout injection, the grout 70 can be filled into the joint 260 continuously with the mechanical joint 232. When the grout 70 is hardened, the column main bars 221 and 241 are joined, and the upper PC column member 220 can be joined to the PC member 280.

  In addition, in the embodiment shown in FIG. 16, the description of air venting at the time of grout filling is omitted, but, similar to the above-described embodiment, in the joint portion of the upper PC column member 220 or the PC column member 280, A grout discharge hole may be provided so as to communicate with the joint 150 from the side surface, and air may be vented through the grout discharge hole, or air may be vented directly from the side portion of the joint 150.

  In the embodiment shown in FIG. 16, the grout 70 is directly injected into the joint 260. However, the present invention is not limited to this, and the grout communicates from the side surface to the upper surface of the joint portion of the PC member 280 or the upper PC pillar member 240. An injection hole may be provided, and the grout 70 may be injected through the grout injection hole.

  Further, in this embodiment, the parts corresponding to the beam portion and the joint portion of the column beam frame are constructed using the PC member. However, the present invention is not limited to this, and the beam portion and the joint portion are placed on-site with concrete. Even when it is constructed, the grout injection method for the mechanical joint of this embodiment can be applied. FIG. 17 is a diagram for explaining a method for constructing a column beam frame in such a case.

  As shown in the figure, the upper PC column member 320 includes a column main bar 321 protruding from the lower surface, and the lower PC column member 340 is a mechanical joint embedded in the upper surface so that a reinforcing bar insertion port 342A is opened. 342. In addition, you may provide a convex part along the outer periphery so that the grout injected when inject | pouring grout may overflow in the upper surface of the lower PC pillar member 340. FIG. When constructing a column beam frame, first, the upper PC column member 320 is connected to the mechanical joint 242 of the lower PC column member 240 at the tip of the column main reinforcement 321 and the upper PC column member 220 is moved downward. The PC column member 240 is installed so that a space corresponding to the joint portion 330 is secured. Next, the grout 70 is poured into the upper surface of the lower PC column member 240. The grout 70 poured into the upper surface of the lower PC column member 240 travels along the upper surface and flows into the mechanical joint 342 from the reinforcing bar insertion port 342A. The grout 70 is injected until the grout 70 overflows from the top of all the mechanical joints 342. Then, beam bars are arranged at portions corresponding to the joint portion 330 and the beam portion 339, a formwork is installed, and concrete is placed. Thereby, a column beam frame can be constructed.

  In the embodiment shown in FIG. 17, the grout 70 is poured directly into the upper surface of the lower PC column member 340. However, the present invention is not limited to this, and a grout injection hole that leads from the side surface to the upper surface is provided in the lower PC column member 340. The grout 70 may be injected through the grout injection hole.

  In each of the above embodiments, the case where the column beam frame is constructed has been described. However, the grout filling method of the mechanical joint according to the present embodiment is a case where the PC wall member 420 as illustrated in FIG. 18 is joined to the floor 440. It can also be applied to. As shown in the figure, the PC wall member 420 includes a plurality of reinforcing bars 421 protruding from the lower surface. A plurality of joint reinforcing bars 441 are embedded in the floor 440 so as to extend in the vertical direction, and a mechanical joint 442 having a reinforcing bar insertion opening 442A opened on the upper surface is connected to the upper end of the joint reinforcing bars 441. Yes. When joining the PC wall member 420 to the floor 440, first, the PC wall member 420 is erected so that the reinforcing bar 421 is inserted into the mechanical joint 422. Then, after forming a frame around the joint 460, the grout 70 is poured into the joint 460. The grout 70 poured into the joint 460 flows into the mechanical joint 442 along the upper surface of the floor 440. Further, by continuing the grout injection, the grout 70 in the joint 460 can be filled continuously with the mechanical joint 442. Then, when the injected grout 70 is cured, the reinforcing bar 421 and the joining reinforcing bar 442 are joined by the mechanical joint 442, and the PC wall member 420 and the floor 440 are joined.

  Similarly, a mechanical joint is connected to the upper end of the wall reinforcing bar extending in the vertical direction, a lower wall member in which the reinforcing bar insertion port of the mechanical coupling opens on the upper surface, and an upper position where the joining reinforcing bar protrudes from the lower surface. The present invention can also be applied to the case where the PC wall member is connected. In this case, first, the upper PC wall member is erected so that the joint reinforcing bar protruding from the lower surface is inserted into the mechanical joint of the lower wall member. And after giving a formwork around the joint between an upper PC wall member and a lower wall member, grout is poured into this joint. The grout poured into the joint flows into the mechanical joint along the upper surface of the lower wall member. Further, by continuing the grout injection, the grout in the joint can be filled continuously with the mechanical joint. When the injected grout is hardened, the wall reinforcement of the lower wall member and the joint reinforcing bar of the upper PC wall member are joined by a mechanical joint, and the upper PC wall member and the lower wall member are joined. .

It is FIG. (1) for demonstrating the grout filling method of the mechanical coupling of this embodiment. It is FIG. (2) for demonstrating the grout filling method of the mechanical coupling of this embodiment. It is FIG. (3) for demonstrating the grout filling method of the mechanical coupling of this embodiment. It is a figure which shows the test body used for the joint performance test. It is a figure which shows the material used for the test body. It is a table | surface which shows the criteria of a joint performance test. It is a table | surface which shows the test result of each test body. It is a figure which shows the vicinity of the column beam junction part of the column beam frame before joining in embodiment which applied this invention to construction of a column beam junction part. It is FIG. (1) for demonstrating the method to construct | assemble the column beam junction part of the column beam frame to which this invention is applied. It is FIG. (2) for demonstrating the method to construct | assemble the column beam junction part of the column beam frame to which this invention is applied. It is FIG. (3) for demonstrating the method to construct | assemble the column beam junction part of the column beam frame to which this invention is applied. It is FIG. (4) for demonstrating the method to construct | assemble the column beam junction part of the column beam frame to which this invention is applied. It is FIG. (5) for demonstrating the method to construct | assemble the column beam junction part of the column beam frame to which this invention is applied. It is FIG. (6) for demonstrating the method to construct | assemble the column beam junction part of the column beam frame to which this invention is applied. It is a figure for demonstrating the joining structure of the PC pillar member to which this invention is applied. It is a figure for demonstrating the method of constructing | assembling the column beam junction part of the column beam frame to which this invention is applied, when using the PC member which integrated the lower PC column member and PC beam and joint member. It is a figure for demonstrating the method to construct | assemble the column beam junction part of the column beam frame to which this invention is applied when constructing a joint part in the field. It is a figure for demonstrating the method to join the full PC wall member to which this invention is applied. It is a figure for demonstrating the method to construct | assemble the beam-column joint part of a beam-column frame using a full PC member. It is a figure for demonstrating a grout distribution apparatus, (A) is a horizontal sectional view, (B) is a vertical sectional view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Concrete member 11 and 13 Reinforcement 12 Mechanical joint 14 Grout 15 Specimen 20, 120, 220, 320 Upper PC pillar member 21, 121, 221, 321 Column main reinforcement 22 Hole 30, 230 PC beam and joint member 31 Reinforcing bar Through hole 38, 238, 338 Joint part 39, 239 Beam part 40, 140, 240, 340 Lower PC column member 41, 141, 241, 341 Column main bar 42, 142, 342, 442 Mechanical joint 42A, 142A, 342A Reinforcing bar insertion port 43, 223 Injection hole 50 Lower joint 60 Upper joint 70 Grout 150 Joint 232 Mechanical joint 260, 460 Joint 280 PC member 420 PC wall member 421 Reinforcing bar 440 Floor 441 Jointed reinforcing bar

Claims (7)

  1. A method of filling grout into a mechanical joint embedded in the lower concrete member such that a reinforcing bar insertion opening opens on the upper surface of the lower concrete member joined to the upper concrete member,
    The mechanical joint is a sleeve joint,
    Grout, through joints between the upper concrete member and the lower concrete element, mechanical, characterized in that by Tsutawa the upper surface of the lower concrete element Komu flow into the sleeve fitting inside than the reinforcing bar insertion opening Grout filling method for joints.
  2. A method of joining a lower PC member in which a mechanical joint is embedded so that a reinforcing bar insertion opening is opened on an upper surface and an upper PC member in which a reinforcing bar protrudes from a lower surface,
    The mechanical joint is a sleeve joint,
    The upper PC member is built above the lower PC member so that the reinforcing bar protruding from the lower surface is inserted into the sleeve joint,
    The grout is poured through the joint between the upper PC member and the lower PC member so as to travel along the upper surface of the lower PC member, and the grout is continuously filled in the joint and the sleeve joint. PC member joining method.
  3. A lower PC column member in which a mechanical joint is embedded so that a reinforcing bar insertion opening opens on the upper surface, a PC joint member in which a reinforcing bar through-hole extending in the vertical direction is formed, and a lower part that protrudes downward from the lower surface A method of constructing a column beam joint by joining an upper PC column member provided with a column main reinforcing bar,
    The mechanical joint is a sleeve joint,
    In the upper part of the lower PC pillar member, a splicing member erection step of erected the PC splicing member,
    The upper PC column member is inserted into the upper portion of the PC joint member, the column main bar penetrates the reinforcing bar through hole, and the tip of the column main bar is inserted into the sleeve joint of the lower PC column member. The upper column member erection process
    The grout is poured through the joint between the lower PC column member and the PC joint member so as to travel along the upper surface of the lower PC column member, and the grout is continuously filled in the joint and the sleeve joint. And a grout filling step.
  4. A method for constructing a beam-column joint according to claim 3,
    In the grout filling step,
    Continuation of the sleeve joint and the joint, the joint between the reinforcing bar through-hole and the PC joint member and the upper PC pillar member is filled with grout. Method.
  5. A method for constructing a column beam joint of a column beam structure,
    A lower PC pillar member with a mechanical joint embedded in the upper surface so that the rebar insertion opening opens,
    An upper PC column member in which a column main bar protrudes from the lower surface is inserted into the mechanical joint at the tip of the column main bar, and a column beam joint is provided between the upper PC column member and the lower PC column member. Built so that a space corresponding to the part is formed,
    Pour the grout over the upper surface of the lower PC column member and pour into the mechanical joint,
    Placing the concrete that constitutes the column beam joint in the space ,
    The mechanical joint is a sleeve joint, and a method for constructing a column beam joint.
  6. A method of joining a floor member in which a mechanical joint is embedded so that a reinforcing bar insertion opening is opened on the upper surface and a PC wall member in which the reinforcing bar protrudes from the lower surface,
    The PC wall member is built above the floor member so that a reinforcing bar protruding from the lower surface is inserted into the mechanical joint,
    A grout is poured through the joint between the floor member and the PC wall member so as to travel along the upper surface of the floor member, and the grout is continuously filled in the joint and the mechanical joint. And PC wall member joining method.
  7. A method of joining a lower wall member in which a mechanical joint is embedded so that a reinforcing bar insertion opening is opened on an upper surface and an upper PC wall member in which a reinforcing bar protrudes from a lower surface,
    The upper PC wall member is built above the lower wall member so that a reinforcing bar protruding from the lower surface is inserted into the mechanical joint,
    The grout is poured into the upper surface of the floor member through the joint between the wall member and the upper PC wall member, and the grout is continuously filled in the joint and the mechanical joint. A method for joining a pair of wall members.
JP2007269431A 2007-10-16 2007-10-16 Mechanical joint grout filling method, PC member joining method, column beam joint construction method, column beam joint construction method, floor member and PC wall member joining method, PC member joining structure, column beam joining Structure, column beam joint structure, floor / wall joint structure Active JP4998198B2 (en)

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JP2007269431A JP4998198B2 (en) 2007-10-16 2007-10-16 Mechanical joint grout filling method, PC member joining method, column beam joint construction method, column beam joint construction method, floor member and PC wall member joining method, PC member joining structure, column beam joining Structure, column beam joint structure, floor / wall joint structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104040A (en) * 2013-03-08 2013-05-15 郑州大学 Assembled framework beam-column joint adopting vertical connection and construction method thereof

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JP5701515B2 (en) * 2010-04-15 2015-04-15 株式会社竹中工務店 Grout injection method, joint structure, and building
JP2012057314A (en) * 2010-09-06 2012-03-22 Ohbayashi Corp Connection method and connection structure for pc members and pc members
JP5938234B2 (en) * 2011-03-01 2016-06-22 株式会社ホクコン Outer wall strut member for construction of upper and lower two tank type water tank, upper and lower two tank type water tank using the same, and construction method of water tank
CN108385831A (en) * 2018-03-07 2018-08-10 王昆 Prefabricated post, the connecting node of column and column, bean column node and construction method

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JPH01203523A (en) * 1988-02-09 1989-08-16 Asahi Chem Ind Co Ltd Fixing of column base
JPH08135087A (en) * 1994-11-04 1996-05-28 Ohbayashi Corp Precast concrete column member and joint method thereof
JP3362720B2 (en) * 1999-12-28 2003-01-07 鹿島建設株式会社 Grouting method for column / beam joints
JP2007255091A (en) * 2006-03-24 2007-10-04 Ohbayashi Corp Method of filling grout, joint method of pc member, and joint structure of pc member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104040A (en) * 2013-03-08 2013-05-15 郑州大学 Assembled framework beam-column joint adopting vertical connection and construction method thereof
CN103104040B (en) * 2013-03-08 2015-10-14 郑州大学 A kind of assembling frame bean column node and construction method adopting vertical connection

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