US20100207009A1 - Temporary post joint, temporary structure, and method for constructing slabs of floors - Google Patents

Temporary post joint, temporary structure, and method for constructing slabs of floors Download PDF

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Publication number
US20100207009A1
US20100207009A1 US12/668,746 US66874608A US2010207009A1 US 20100207009 A1 US20100207009 A1 US 20100207009A1 US 66874608 A US66874608 A US 66874608A US 2010207009 A1 US2010207009 A1 US 2010207009A1
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United States
Prior art keywords
temporary
temporary post
post
post joint
concrete
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Abandoned
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US12/668,746
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English (en)
Inventor
Shigeyuki Nishijima
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Just Will Co Ltd
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Just Will Co Ltd
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Priority claimed from JP2007248562A external-priority patent/JP4637151B2/ja
Priority claimed from JP2007339779A external-priority patent/JP4191235B1/ja
Application filed by Just Will Co Ltd filed Critical Just Will Co Ltd
Assigned to JUST.WILL CO., LTD. reassignment JUST.WILL CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NISHIJIMA, SHIGEYUKI
Publication of US20100207009A1 publication Critical patent/US20100207009A1/en
Abandoned legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
    • E04B1/164—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material with vertical and horizontal slabs, only the horizontal slabs being partially cast in situ

Definitions

  • the present invention relates to a temporary post joint, a temporary structure, and a method for casting-in-place ready-mixed concrete with forms, thereby constructing slabs of a plurality of floors in parallel.
  • Document 1 Japanese patent application laid-open on No. 1109-217417 discloses a technology of constructing pre-cast concrete longitudinal direction beams, and craning up pre-cast concrete boards to bring them down in a skeleton body. This enables to construct slabs without a support.
  • the width of slabs must be the multiple of the width of the pre-cast boards, and also the thickness of the slabs is limited. In other words, it must be said that the flexibility of slab construction is low.
  • an object according to the present invention is to provide a temporary post joint, a temporary structure, and a method for constructing slabs of a plurality of floors that can maintain high flexibility of slab-designing, while reducing the term of works remarkably.
  • a first aspect according to the present invention provides a temporary post joint operable to being used in a temporary structure comprising a first temporary post and a second temporary post being arranged in a higher floor than the first temporary post, the temporary post joint comprising: a bottom face formed connectable to an upper end portion of the first temporary post; and a top face formed connectable to a lower end portion of the second temporary post, wherein the temporary post joint connects the first temporary post and the second temporary post in a vertical direction, and wherein the temporary post joint is formed operable to engage with arranged reinforcing bars and is integrally held within a slab even after cast-in-place concrete contacting with the reinforcing bars has hardened and solidified.
  • the temporary post joint connects the first temporary post and the second temporary post in the vertical direction.
  • Ready-mixed concrete can be cast-in-place above both the first and second temporary posts. Hardening and solidifying the cast ready-mixed concrete above both the temporary posts can be performed concurrently.
  • the temporary post joint is integrally held within the slab even after hardening and solidifying the cast-in-place concrete has been completed. By merely removing the forms and the temporary posts after the hardening and solidifying, the construction of the slabs can be completed.
  • a second aspect according to the present invention provides a temporary post joint as defined in the first aspect, wherein height from the bottom face to the top face is equal to the thickness of cast-in-place concrete.
  • a third aspect according to the present invention provides a temporary post joint as defined in the first aspect, wherein the bottom face is connected to the upper end portion of the first temporary post via a form contacting with the concrete.
  • the temporary post joint connects the first and second temporary posts in the vertical direction inserting the form there-between, thereby constructing a solid temporary structure.
  • a forth aspect according to the present invention provides a temporary post joint as defined in the first aspect, wherein an anchor is provided with the top face and the bottom face, respectively.
  • the worker can strongly connect the temporary post and the temporary post joint using an anchor bolt, and can easily do his work by loosening the anchor bolt when the temporary post should be removed.
  • a fifth aspect according to the present invention provides a temporary post joint as defined in the first aspect, wherein a bar arrangement space opening to the concrete via an opening part is provided within the interior of the temporary post joint, and wherein bars penetrate the bar arrangement space via the opening part, thereby the temporary post joint engages with the bars.
  • the temporary post joint may have a flat shape without a protruding member from a side face, which may be box-shaped or tubular. In this way, the worker is free from obstruction and injury caused by the protruding member when the temporary post joint should be loaded or conveyed.
  • a sixth aspect according to the present invention provides a temporary post joint as defined in the first aspect, wherein specific gravity of the temporary post joint is not less than specific gravity of the cast-in-place concrete.
  • a seventh aspect according to the present invention provides a temporary post joint as defined in the first aspect, wherein the temporary post joint comprises: a solid pre-cast concrete block; and an extending bar extending outward from a side of the concrete block, and wherein the temporary post joint engages with a bar outside arranged using the extending bar.
  • the worker need not in place insert the bar outside arranged through the temporary post joint.
  • the worker can construct the slabs by merely engaging the extending bar with the bar outside arranged.
  • a seventh aspect according to the present invention provides a method for constructing slabs of a plurality of floors, comprising: standing a plurality of first posts in a first floor layer; supporting a first form at a boundary between the first floor layer and a second floor layer right above the first floor layer with the plurality of first posts; connecting bottom faces of a plurality of first post joints to upper end portions of the plurality of first posts, respectively; connecting lower end portions of a plurality of second post joints to top faces of the plurality of first post joints, respectively, thereby standing the plurality of second posts in the second floor layer; supporting a second form at a boundary between the second floor layer and a third floor layer right above the second floor layer with the plurality of second posts; connecting bottom faces of a plurality of second post joints to upper end portions of the plurality of second posts, respectively; casting-in-place first ready-mixed concrete contacting with the first form; and casting-in-place second ready-mixed concrete contacting with the second form, wherein the first ready-mixed concrete
  • the temporary post joints according to this arrangement connect the plurality of first temporary posts and the plurality of second temporary posts in the vertical direction.
  • constructing the plurality of floors can be performed concurrently. Accordingly, the terms of works can be remarkably shortened in comparison with the prior art that individually performs casting ready-mixed concrete of every floor to harden and solidify the cast concrete.
  • the temporary post joint is integrally held within the slab even after hardening and solidifying the cast-in-place concrete has been completed. By merely removing the forms and the temporary posts after the hardening and solidifying, the construction of the slabs can be completed.
  • FIG. 1 is a process diagram of a slab construction method in an embodiment according to the present invention
  • FIG. 2 is a process diagram of the slab construction method in the embodiment according to the present invention.
  • FIG. 3 is a process diagram of the slab construction method in the embodiment according to the present invention.
  • FIG. 4 is a process diagram of the slab construction method in the embodiment according to the present invention.
  • FIG. 5 is a process diagram of the slab construction method in the embodiment according to the present invention.
  • FIG. 6 is a perspective view of a temporary post joint in a first example according to the present invention.
  • FIG. 7 is a sectional view of FIG. 6 by an A-A line
  • FIG. 8 is a side view of a temporary post joint in a second example according to the present invention.
  • FIG. 9 is a perspective view of a temporary post joint in a third example according to the present invention.
  • FIG. 10 is a perspective view of a temporary post joint in a forth example according to the present invention.
  • FIG. 11 is a plane view of a temporary post joint in a fifth example according to the present invention.
  • FIG. 12 is a plane view of a temporary post joint in a sixth example according to the present invention.
  • FIG. 13 is a process diagram of a slab construction process of a plurality of floors in the embodiment according to the present invention.
  • FIGS. 1 , 2 , 3 , 4 and 5 are process diagrams of a slab construction method in the embodiment according to the present invention.
  • construction methods and elements with respect to members standing in the vertical direction, such as columns and walls do not relate to the subject matter of the present invention and may be those of well-known art, therefore explanation thereof is omitted.
  • a horizontal established slab 1 has been already built. Above the slab, slabs of a plurality of floors should be constructed to build a concrete structure in a medium or large (two or more-storied) scale.
  • the established slab 1 is normally composed of a concrete slab. Theoretically speaking, the established slab 1 , however, may be constituted arbitrarily as long as the established slab 1 can without any problem support a group of temporary posts described below.
  • a space of three layers, which have support height h 1 , support height h 2 , and support height h 3 , respectively, is formed above the established slab 1 .
  • a margin for slab t 1 is set up between the support height h 1 and the support height h 2
  • a margin for slab t 2 is set up between the support height h 2 and the support height h 3 , respectively.
  • Each of the support height h 1 , h 2 and h 3 corresponds to floor height of a building. A part or all of the support height h 1 , h 2 and h 3 may be different from the other, by changing substantial height of the temporary posts.
  • the present invention includes such a case.
  • the margin for slab t 1 and the margin for slab t 2 are equal to each other.
  • the margin for slab t 1 and the margin for slab t 2 indicate the sum of thickness of slab to be constructed and the substantial thickness of a form below post joints (if any). Needless to say, the form is located at a boundary between an upper floor layer and a lower floor layer.
  • FIGS. 1 to 5 According to convenience of illustration, only spaces between slabs until the third floor are illustrated in FIGS. 1 to 5 . This is, however, a mere example. Only the first and second floors may be constructed. The first, second, third, fourth, or more floors may be constructed by repeating the construction processes described below. The present invention includes these cases.
  • a plurality of temporary posts 2 and 3 are stood at intervals.
  • the temporary post 2 carries a load from the middle or higher floor.
  • the span thereof is set up, for example, about 1400 mm
  • this value is a mere example, and can be changed if needed.
  • the temporary post 3 is a reinforcement, which does not carry the load from the middle or higher floor (except for weight of the form, bars, and cast concrete).
  • the temporary post 3 is arranged in the middle of a span L 1 , this can also be changed properly.
  • the temporary posts 2 and 3 may be commercially available temporary posts, and are preferably posts whose height is adjustable, having lower end plates 2 a and 3 a at their lower end portions, and having upper end plates 2 b and 3 b at their upper end portions, respectively.
  • the lower end plates 2 a , 3 a and the upper end plates 2 b , and 3 b are preferably formed broadly like horizontal flanges, respectively.
  • the horizontal cross section of each post may be a polygon, such as a rectangle, or a circle, and so on.
  • the form 4 is normally constituted including a flat concrete panel and joists and beams (not shown) reinforcing the flat concrete panel.
  • the form is not limited to this type, if there is no problem when constructing the temporary structure, casting ready-mixed concrete, and curing (hardening and solidifying) the cast concrete.
  • the temporary post joints 10 are arranged right above the upper end plates 2 b of the temporary posts 2 in the middle floor. That is, the temporary post joints 10 are arranged per the span L 1 .
  • the temporary post joint 10 connects temporary posts in a vertical direction in a temporary structure, and wherein the temporary post joint is formed operable to engage with arranged reinforcing bars and is integrally held within a slab even after cast-in-place concrete contacting with the reinforcing bars has hardened and solidified”.
  • the worker When the temporary post joint 10 is located on the concrete panel of the form 4 and neither joist nor beam exists right below the temporary post joint 10 , it is preferable for the worker to screw an anchor bolt upward from a lower floor layer side into an anchor provided with the bottom face of the temporary post joint 10 to make the anchor bolt penetrate the concrete panel, thereby combining the anchor bolt with the anchor of the temporary post joint 10 .
  • the above-mentioned margin for slab is the sum of the height of the temporary post joint 10 and the thickness of the concrete panel.
  • a through hole may be opened in the concrete panel (that is, a part of the forms 4 ) to directly combine the bottom face of the temporary post joint 10 with a top face of the upper end plate. In this case, it is, however, necessary to take consideration so that cast ready-mixed concrete does not leak from the through hole.
  • the temporary posts 5 are stood on the plurality of temporary post joints in the middle floor, respectively.
  • the temporary posts 5 preferably have lower end plates 5 a at the lower end portions thereof, and lower end plates 5 b at upper end portions thereof, and the end plates 5 a and 5 b are formed broadly like horizontal flanges.
  • the temporary posts 5 have the same height as the temporary posts 2 and 3 . It is preferable to combine the lower end plates 5 a with the anchors on the top faces of the temporary post joints 10 with anchor bolts.
  • a form 6 is arranged on the upper end plates 5 b .
  • the form 6 is normally constituted including a flat concrete panel, and joists and beams (not shown) reinforcing the panel.
  • the form is not limited to this type, if there is no problem when constructing the temporary structure, casting ready-mixed concrete, and curing (hardening and solidifying) the cast concrete.
  • the temporary post joints 20 are arranged right above the upper end plates 5 b of the temporary posts 5 in the higher floor. That is, the temporary post joints 20 are constituted as the same as the temporary post joints 10 , and are arranged per the span L 1 .
  • the worker When the temporary post joint 20 is located on the concrete panel of the form 6 and neither joist nor beam exists right below the temporary post joint 20 , it is preferable for the worker to screw an anchor bolt upward from a lower floor layer side into an anchor (the details thereof will be described later) provided with the bottom face of the temporary post joint 20 to make the anchor bolt penetrate the concrete panel, thereby combining the anchor bolt with the anchor of the temporary post joint 20 .
  • the above-mentioned margin for slab t 2 is the sum of the height of the temporary post joint 20 and the thickness of the concrete panel.
  • a through hole may be opened in the concrete panel (that is, a part of the forms 6 ) to directly combine the bottom face of the temporary post joint 20 with a top face of the upper end plate 5 b . In this case, it is, however, necessary to take consideration so that cast ready-mixed concrete does not leak from the through hole.
  • the temporary post joints 10 are joints that attachably and detachably connect the temporary posts 2 and the temporary posts 5 in the vertical direction. It should be noted that the temporary post joints 10 are integrally held within the concrete even after casting, hardening, and solidifying the cast concrete.
  • bars 7 are arranged to be engaged with the temporary post joints 10 in the middle floor. Furthermore, bars 8 are arranged to be engaged with the temporary post joints 20 in the higher floor.
  • Arranging bars in the middle floor may be performed prior to and/or concurrently with construction of the temporary structure of the higher floor.
  • concrete 14 is cast-in-place in the middle floor, and concrete 15 is cast-in-place in the higher floor, respectively.
  • the thickness of the slab relies upon the intuitions and experiences of a worker casting concrete. Even if the worker is fully skilled in casting, unevenness and inclination of the slab may easily occur in many cases.
  • the worker it is enough for the worker to cast concrete until the top faces of the temporary post joints 10 and 20 .
  • the worker can make sure a landmark (that is, top faces of the temporary post joints 10 and 20 ) of thickness by his eyes.
  • Such unevenness and inclination can be reduced to the minimum, thereby enabling to easily construct slabs with high quality.
  • casting ready-mixed concrete in the middle floor can be performed prior to and/or concurrently with casting ready-mixed concrete in the higher floor.
  • the temporary posts 2 , 3 , and 5 that have stood in the middle and lower floor layer are removed. Thereby, construction of the cured concrete 14 which is the ceiling of the lower floor layer and also is the floor of the middle floor layer and the cured concrete 15 which is the ceiling of the middle floor layer and also is the floor of the higher floor layer is completed.
  • the temporary post joints 10 are not only joints that connect the temporary post 2 and the temporary post 5 in the longitudinal direction, but also are buried bodies that are integrally held within the concrete even after casting, hardening, and solidifying the concrete.
  • the inventors of the present invention have invented the temporary post joints 10 , and, utilizing the joints, also have completed the slab construction method for constructing slabs of a plurality of floors that can remarkably shorten the term of works in comparison with the conventional method.
  • a slab of further higher floor can be constructed by regarding the cured concrete 15 as the established slab 1 in FIG. 1 , and repeating processes after FIG. 1 . Also in that case, hardening and solidifying the cast-in-place concrete of a plurality of floors concurrently and at once can be performed.
  • the temporary post joint according to the embodiment is not only a joint that connects the temporary posts in the longitudinal direction, but also a buried body that is integrally held within the concrete even after casting, hardening, and solidifying the concrete.
  • buoyancy is given to the temporary post joint after casting the ready-mixed concrete until the completion of hardening and solidification thereof.
  • the specific gravity of the post joint is equal to or slightly greater than that of ready-mixed concrete.
  • the post joint of this embodiment has quite a different meaning from a member embedded in ready-mixed concrete in order to form a void in a slab.
  • the post joint according to the present invention is not limited to a member having specific gravity not less than that of ready-mixed concrete.
  • FIG. 6 is a perspective view of a post joint of a first example according to the present invention
  • FIG. 7 is a sectional view of FIG. 1 by an A-A line.
  • FIG. 6 illustrates a temporary post joint 30 of pre-cast concrete with respect to the first example.
  • the temporary post joint 30 of the first example is almost rectangular. Anchors 33 at four positions are arranged on a top face 31 and a bottom face 32 of the temporary post joint 30 .
  • the top face 31 is connectable to a temporary post arranged in a higher floor layer
  • the bottom face 32 is connectable to a temporary post arranged in a lower floor layer, respectively.
  • the bottom face 32 and the temporary post arranged in the lower floor layer may be connected interleaving a concrete panel of a form, or the like there-between, or alternatively may be directly connected via a hole passing through the concrete panel of the form, or the like.
  • a bar arrangement space 34 which has the shape of a cross in a horizontal cross section thereof, is opened in the interior of the temporary post joint 30 .
  • the bar arrangement space 34 opens into the outside via opening parts 35 and 36 of four side faces.
  • reinforcing bars 7 and 8 can be inserted in into the bar arrangement space 34 via the opening parts 35 and 36 , and also they can penetrate to an opposite side.
  • the reinforcing bars 7 and 8 can intersect perpendicularly with each other in the bar arrangement space 34 . Thereby, the reinforcing bars 7 and 8 engage with the temporary post joint 30 .
  • the level of the bottom face 32 is substantially as the same as the level of the form.
  • the level of the top face 31 is used as a landmark indicating an upper limit of ready-mixed concrete to be exhausted.
  • the ready-mixed concrete When the ready-mixed concrete is exhausted around the temporary post joint 30 , aggregate contained in the ready-mixed concrete can go into the bar arrangement space 34 through the opening part 35 .
  • the components of the ready-mixed concrete can be distributed as the same as the outside of the temporary post joint 30 , and also can be hardened and solidified.
  • an air hole 38 opening upwards from the bar arrangement space 34 is formed in the temporary post joint 30 .
  • the ready-mixed concrete goes into the bar arrangement space 34 from the opening part 35 , air existed in the interior of the bar arrangement space 34 is upward exhausted to the outside via the air hole 38 .
  • illustration of the air hole is omitted in the second or later examples, it is preferable to provide with the air hole similarly.
  • it is preferable to cast ready-mixed concrete so much that the concrete fills the air hole up, and further so much that a part of the concrete mounds on the air hole 38 . Under these conditions, the bar arrangement space 34 is filled up with the ready-mixed concrete, and air hardly remains therein.
  • the ready-mixed concrete mounds from the air hole 38 it is preferable for the worker to remove extra ready-mixed concrete with a trowel.
  • outer faces of the temporary post joints 30 are all flat and have no part extending outward until the reinforcing bars 7 and 8 are inserted into the bar arrangement space 34 . Accordingly, when the worker loads and/or conveys the temporary post joint 30 , he is neither disturbed by any extending part (especially, by an extending bar, or the like) nor injured thereby.
  • the temporary post joint 30 can be dealt with very easily.
  • the temporary post joint 30 which is box-like is used.
  • an upper part of a temporary post joint 40 is formed with a flange part 43 that is wider than a lower part thereof Therefore, a top face 41 is formed more widely than a bottom face 42 .
  • a bar arrangement space 44 which has the shape of a cross in a horizontal cross section thereof, is formed.
  • the bar arrangement space 44 opens into the outside via opening parts 45 .
  • the reinforcing bars 7 and 8 by inserting and making the reinforcing bars 7 and 8 penetrate into the bar arrangement space 44 , the reinforcing bars 7 and 8 can be arranged intersecting perpendicularly in the bar arrangement space 44 . Thereby, the reinforcing bars 7 and 8 engage with the temporary post joint 40 .
  • the level of the bottom face 42 is substantially as the same as the level of the form.
  • the level of the top face 41 is used as a landmark indicating an upper limit of ready-mixed concrete to be exhausted.
  • ready-mixed concrete can be exhausted, hardened, and solidified.
  • outer faces of the temporary post joint 40 are all flat and have no part extending outward until the reinforcing bars 7 and 8 are inserted into the bar arrangement space 34 .
  • the specific gravity of the temporary post joint 50 is preferably more than that of ready-mixed concrete. When the specific gravity is not enough, a weight may be added properly.
  • a top board 51 and a bottom board 52 are rectangular and flat, and constitute an up-and-down pair.
  • the top and bottom boards 51 and 52 are joined with columns at four corners to be formed in the shape of a box. As illustrated, it is preferable to use an angle member as the column 53 .
  • Anchors 56 are properly arranged on the top board 51 and the bottom board 52 .
  • a top face 54 of the top board 51 is a top face 54 of the temporary post joint 50
  • a bottom face 55 of the bottom board 52 is a bottom face 55 of the temporary post joint 50
  • the top and bottom boards 51 and 52 are rectangular boards, respectively.
  • the level of the bottom face 55 is substantially as the same as the level of the form.
  • the level of the top face 54 is used as a landmark indicating an upper limit of ready-mixed concrete to be exhausted.
  • the ready-mixed concrete When the ready-mixed concrete is exhausted around the temporary post joint 50 , aggregate contained in the ready-mixed concrete can go into the bar arrangement space 57 through the opening part 58 .
  • the components of the ready-mixed concrete can be distributed as the same as the outside of the temporary post joint 50 , and also can be hardened and solidified.
  • the specific gravity of the temporary post joint 60 is preferably more than that of ready-mixed concrete. When the specific gravity is not enough, a weight may be added properly.
  • the fourth example changes the shape of the third example.
  • a top board 61 and a bottom board 62 are circular and flat, and constitute an up-and-down pair.
  • the top and bottom boards 61 and 62 are joined with a plurality of columns 63 to be formed in the shape of a cylinder.
  • Anchors 64 are properly arranged on the top board 61 and the bottom board 62 .
  • a top face of the top board 61 is a top face of the temporary post joint 60
  • a bottom face of the bottom board 62 is a bottom face of the temporary post joint 60
  • the top board 61 and the bottom board 62 are circular boards, respectively.
  • the level of the bottom face of the bottom board 62 is substantially as the same as the level of the form.
  • the level of the top face of the top board 61 is used as a landmark indicating an upper limit of ready-mixed concrete to be exhausted. Other points are the same as those of the third example.
  • FIG. 11 is a plane view of a temporary post joint according to the fifth example
  • FIG. 12 is a plane view according to the sixth example.
  • a temporary post joint 70 including extending bars 73 extending radially and outward in predetermined length L 2 from the temporary post joint, which is solid and cylindrical.
  • Anchors 72 and 82 are arranged in these pre-cast concrete blocks 71 and 81 , respectively.
  • the concrete blocks may have a horizontal cross section of a circle or a polygon, such as a rectangle, a hexagon, an octagon, and so on.
  • the horizontal cross section may change in the vertical direction having, for example, a trapezoidal or conical shape.
  • FIG. 13 illustrates respective terms of works according to the conventional slab construction method and the slab construction method according to this embodiment. Referring to FIG. 13 , it may be understood that until works for a lower floor layer and curing thereof has been completed it is impossible to start works for a floor right above the lower floor layer.
  • the slab building method according to this embodiment by utilizing the above-mentioned temporary post joints, it is possible to perform in parallel both of the works for the lower floor layer and the works for the upper floor layer. Since it is also possible to perform casting the ready-mixed concrete and curing the cast concrete concurrently in parallel, the terms of works according to this embodiment can be remarkably shortened (about 40% or more in FIG. 13 ) in comparison with the conventional art.
  • FIG. 13 shows, however, a mere example, and the present invention is not limited to this example.
  • the temporary post joints need not be arranged at all the crossings of bars. That is, the present invention includes a case where there are one or more crossings at which no temporary post joint is arranged.
  • the temporary post joint according to the present invention and a construction method using the same are suitably used in the field, for example, of casting-in-place concrete with forms to construct slabs of a plurality of floors especially for shortening the term of works.

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
US12/668,746 2007-09-26 2008-06-04 Temporary post joint, temporary structure, and method for constructing slabs of floors Abandoned US20100207009A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2007248562A JP4637151B2 (ja) 2007-09-26 2007-09-26 中高層建築物の天井スラブ施工法及びその装置
JP2007-248562 2007-09-26
JP2007-339779 2007-12-28
JP2007339779A JP4191235B1 (ja) 2007-12-28 2007-12-28 仮設支柱継手、仮設構造体、及び複数階のスラブ構築方法
PCT/JP2008/060283 WO2009041123A1 (fr) 2007-09-26 2008-06-04 Articulation de montant temporaire, structure temporaire et procédé de construction de dalle pour des planchers multiples

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US12/668,746 Abandoned US20100207009A1 (en) 2007-09-26 2008-06-04 Temporary post joint, temporary structure, and method for constructing slabs of floors

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KR (1) KR20100081299A (fr)
CN (1) CN101809240B (fr)
WO (1) WO2009041123A1 (fr)

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CN109397485B (zh) * 2018-11-07 2020-12-18 中煤地建设工程有限公司 消防爬梯用建筑模板及其施工方法

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SE435198B (sv) * 1980-10-27 1984-09-10 Goetaverken Cityvarvet Ab Flervanings oppen lagerbyggnad, t ex ett parkeringshus
JPS60233269A (ja) * 1984-05-01 1985-11-19 日本フエラス工業株式会社 コンクリ−ト床型枠の支持装置
JPS6286270A (ja) * 1985-10-14 1987-04-20 三井建設株式会社 構造物の構築方法
JPH0343569A (ja) * 1990-05-11 1991-02-25 Gantan Biyuut Kogyo Kk コンクリートのレベル出し兼流れ止め用ブロック
CN2846567Y (zh) * 2005-12-01 2006-12-13 清华大学建筑设计研究院 钢网构架混凝土复合建筑

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