EP3263795A1 - Verbundstrukturwand und verfahren zur konstruktion davon - Google Patents

Verbundstrukturwand und verfahren zur konstruktion davon Download PDF

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Publication number
EP3263795A1
EP3263795A1 EP17175623.2A EP17175623A EP3263795A1 EP 3263795 A1 EP3263795 A1 EP 3263795A1 EP 17175623 A EP17175623 A EP 17175623A EP 3263795 A1 EP3263795 A1 EP 3263795A1
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EP
European Patent Office
Prior art keywords
pair
wall
wall panels
channel
panel
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Granted
Application number
EP17175623.2A
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English (en)
French (fr)
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EP3263795B1 (de
Inventor
Seng Wong
Geok Mui Leow
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Heng Kim Huat
Leow Geok Mui
Wong Seng
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Individual
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Publication of EP3263795A1 publication Critical patent/EP3263795A1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8611—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf
    • E04B2/8617—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf with spacers being embedded in both form leaves
    • 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
    • E04B1/348—Structures composed of units comprising at least considerable parts of two sides of a room, e.g. box-like or cell-like units closed or in skeleton form
    • 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
    • E04B1/348—Structures composed of units comprising at least considerable parts of two sides of a room, e.g. box-like or cell-like units closed or in skeleton form
    • E04B1/34815—Elements not integrated in a skeleton
    • E04B1/34823—Elements not integrated in a skeleton the supporting structure consisting of concrete
    • 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
    • E04B1/38—Connections for building structures in general
    • E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • 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
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E04B1/043—Connections specially adapted therefor
    • E04B1/046—Connections specially adapted therefor using reinforcement loops protruding from the elements
    • 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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus

Definitions

  • the present invention relates to composite structural walls, methods to construct composite structural walls, prefabricated construction modules, e.g. Prefabricated Prefinished Volumetric Construction (PPVC), and building structures constructed therefrom.
  • prefabricated construction modules e.g. Prefabricated Prefinished Volumetric Construction (PPVC)
  • PPVC Prefinished Volumetric Construction
  • precast concrete walls and prefabricated construction modules have been developed and used in the construction industry.
  • the prefabricated walls and modules are produced in a factory and transported to the building site as needed. This allows for better control, and reduces variations in the curing process of the concrete due to environmental factors (e.g. weather and temperature) at the building site.
  • existing methods of joining two side-by-side precast concrete walls would result in a composite wall that functions as individual walls rather than as a single or monolithic wall.
  • joining precast concrete walls of side-by-side prefabricated construction modules would result in a composite wall that functions as individual walls rather than as a single or monolithic wall.
  • a composite wall i.e. a combined width of individual walls joined by existing cast-in situ method to form the composite wall, would have to be thicker than the monolithic wall.
  • vertical load bearing limit of the composite wall as well as the height limit of the building structure, would have to be reduced. Either way poses a restriction to design and construction of the building, and prevents the building owner from maximising value from the constructed building.
  • a method for constructing a composite structural wall comprises: adjacently arranging a first pair of wall panels, wherein each wall panel of the first pair of wall panels includes a first panel body, and at least one first guide attached thereto and protruding from a first groove formed in the first panel body, wherein adjacently arranging a first pair of wall panels includes overlapping the first guides of the first pair of wall panels to form a first channel; inserting a first linking rod into the first channel; dispensing a first grout into a first gap between the first pair of wall panels, wherein dispensing a first grout into a first gap includes dispensing the first grout into the first channel; and curing the first grout to join the first pair of wall panels.
  • the method further comprises: vertically-stacking a second pair of adjacently arranged wall panels on the first pair of wall panels, wherein each wall panel of the second pair of wall panels includes a second panel body, and at least one second guide attached thereto and protruding from a second groove formed in the second panel body, wherein vertically-stacking a second pair of adjacently arranged wall panels on the first pair of wall panels includes overlapping the second guides of the second pair of wall panels to form a second channel; inserting a vertical securement rod into the first and the second channel such that the vertical securement rod have opposite end portions at least partially inserted into the first and the second channel respectively; dispensing a second grout into a second gap between the second pair of wall panels, wherein dispensing a second grout into a second gap includes dispensing the second grout into the second channel; and curing the second grout to join the second pair of wall panels.
  • the method further comprises: inserting a second linking rod into the second channel.
  • the vertical securement rod is integral with the first and/or the second linking rod.
  • dispensing the first grout includes dispensing the first grout to a level below where the vertical securement rod is to be inserted to.
  • each wall panel of the first and the second pair of wall panels is provided by separate prefabricated construction modules, adjacently arranging a first pair of wall panels includes adjacently arranging a first pair of prefabricated construction modules, and vertically stacking a second pair of adjacently arranged wall panels on the first pair of wall panels includes vertically stacking a second pair of adjacently arranged prefabricated construction modules on the first pair of prefabricated construction modules.
  • each wall panel of the first and the second pair of wall panels includes a bottom end portion attached to a floor slab, the method further comprising: inserting a plurality of backing rods between of the first pair of prefabricated construction modules and floor slabs of the second pair of prefabricated construction modules to provide a third gap which intersects the first and the second channel, wherein dispensing a second grout into a second gap includes dispensing the second grout into the third gap, wherein curing the second grout to join the second pair of wall panels includes curing the second grout to join the second pair of prefabricated construction modules to the first pair of prefabricated construction modules.
  • each floor slab of the second pair of prefabricated construction modules includes at least one floor slab guide attached to each respective floor slab and protruding from each respective floor slab, wherein overlapping the second guides of the second pair of wall panels to form a second channel includes overlapping the floor slab guides of the second pair of prefabricated construction modules to provide the second channel.
  • the at least one first guide includes a wire attached to a reinforcement structure embedded in each wall panel.
  • a wall panel in a prefabricated construction module comprising: a panel body; and at least one guide attached to the panel body and protruding from a groove formed in the panel body, wherein the guide is adapted to overlap with an adjacent guide of an adjacently-arranged wall panel to provide a channel for receiving a linking rod therethrough, and wherein the wall panel is adapted to join to the adjacently-arranged wall panel by grouting a gap, including the channel, between the wall panel and the adjacently-arranged wall panel.
  • the wall panel further comprises a reinforcement structure embedded in the panel body, wherein the guide is attached to the reinforcement structure.
  • the reinforcement structure is any one selected from the group consisting of a plurality of steel bars, a plurality of corrugated pipes each adapted to receive a steel bar of a vertically stacked wall panel, a mesh of steel bars, a mesh of steel wires, and a plurality of steel bars each attached to a splice connector adapted to receive a steel bar of a vertically stacked wall panel.
  • a surface of the panel body, which includes the groove formed therein, is roughened.
  • a prefabricated construction module comprising: at least one wall panel according to the second aspect of the invention; and a floor slab attached to a bottom end portion of the wall panel.
  • the floor slab comprises a floor slab guide attached thereto and protruding therefrom, wherein the floor slab guide is adapted to form the channel.
  • a building structure comprising: at least one first composite structural wall which comprises: a first pair of wall panels arranged adjacent to each other, wherein each wall panel of the first pair of wall panels includes a first panel body and at least one first guide attached thereto and protruding from a first groove formed in the first panel body, wherein the first guides of the first pair of wall panels overlap to provide a first channel; a first linking rod disposed within the first channel; and a first grouting disposed in a first gap, including the first channel, between the first pair of wall panels, wherein the first grouting joins the first pair of wall panels.
  • the building structure further comprises: at least one second composite structural wall which is vertically stacked on the first composite structural wall and comprises: a second pair of wall panels arranged adjacent to each other, wherein each wall panel of the second pair of wall panels includes a second panel body and at least one second guide attached thereto and protruding from a second groove formed in the second panel body, wherein the second guides of the second pair of wall panels overlap to provide a second channel; a second linking rod disposed within the second channel; a vertical securement rod having opposite end portions at least partially inserted into the first and the second channel respectively; a second grouting disposed in a second gap, including the second channel, between the second pair of wall panels, wherein the second grouting joins the second pair of wall panels.
  • each wall panel of the first and the second pair of wall panels is provided by separate prefabricated construction modules.
  • each wall panel of the first and the second pair of wall panels includes a top end portion attached to a ceiling slab and a bottom end portion attached to a floor slab
  • the building structure further comprising: a plurality of backing rods interposed between ceiling slabs of the first pair of prefabricated construction modules and floor slabs of the second pair of prefabricated construction modules to provide a third gap, wherein the second grout is further disposed in the third gap and joins the second pair of prefabricated construction modules to the first pair of prefabricated construction modules.
  • each floor slab of the second pair of prefabricated construction modules includes at least one floor slab guide attached to each respective floor slab and protruding from each respective floor slab, and wherein the floor slab guides of the second pair of prefabricated construction modules overlap to provide the second channel.
  • the vertical securement rod is integral with the first and/or the second linking rod.
  • the building structure further comprises a reinforcement structure embedded in each of the first and the second panel body, wherein the first and the second guide is attached to the respective reinforcement structure.
  • the reinforcement structure is any one selected from the group consisting of a plurality of steel bars, a plurality of corrugated pipes each adapted to receive a steel bar of a vertically stacked wall panel, a mesh of steel bars, a mesh of steel wires, and a plurality of steel bars each attached to a splice connector adapted to receive a steel bar of a vertically stacked wall panel.
  • the composite structural wall joined from the individual wall panels, functions as a single or monolithic wall and retains the advantages of both existing cast-in situ and prefabrication methods.
  • the composite structural wall provides the benefits of precast wall panels including controllable curing of the wall panel, and reduced time required to construct the composite structural wall and/or join adjacent modules both horizontally and vertically.
  • the dimensions of the composite structural wall are similar to a monolithic wall constructed from existing cast-in situ methods and yet the composite wall of the invention is capable of providing a similar vertical load bearing capacity as the monolithic wall constructed from existing cast-in situ methods.
  • Embodiments described in the context of one of the methods or devices are analogously valid for the other methods or devices. Similarly, embodiments described in the context of a method are analogously valid for a device, and vice versa.
  • each other denotes a reciprocal relation between two or more objects, depending on the number of objects involved.
  • each connecting wall panel 100, 200 is provided with guides 105, 205 (for example, steel wire loops, or steel wire ropes, or J-connection loop as shown in Figure 14 ) at intervals or spaced apart from each other.
  • guides 105, 205 for example, steel wire loops, or steel wire ropes, or J-connection loop as shown in Figure 14 .
  • a portion of each guide 105, 205 is embedded within the wall panel 100, 200 while another portion protrudes from the jointing surface.
  • a groove 110, 210 is formed or provided in the jointing surface of the wall panel 100, 200 to accommodate the guides 105, 205.
  • the two connecting wall panels 100, 200 are brought close to each other (leaving a gap 30 between the wall panels 100, 200) such that the guides 105, 205 of the wall panels 100, 200 are disposed or overlap to form a channel 25.
  • a linking rod 40 (for example, a steel bar) is inserted into the channel 25 formed by the guides 105, 205 of the connecting wall panels 100, 200.
  • the gap 30 between the wall panels 100, 200 is subsequently in-filled with concrete or grout and cured to form a composite structural wall 55.
  • the grout should be of a high strength and non-shrink type. High strength grout is a fluid form of concrete, and is generally made from a mixture of cement, water, graded fillers and chemical additives.
  • the two wall panels 100, 200 are held in position, by the linking rod 40 coupling the guides 105, 205, while the grout is dispensed and cured. This makes it easier for the composite wall 55 to be constructed in a faster and more efficient manner.
  • Embodiments of the present invention provide an innovative connection system to connect or join two adjacently-arranged wall panels 100, 200 by using guides 105, 205, with in-fill concrete or grouting 50 to form a composite structural wall system instead of forming a cast-in situ concrete shear wall in the conventional way.
  • This allows wall panels 100, 200 to be joined in a horizontal and vertical direction.
  • the wall panels 100, 200 may be part of separate prefabricated construction modules 5 and provide a connection means to join a plurality of prefabricated construction modules 5 to construct a structure.
  • the constructed structure could be a single storey or a multi storey building with different compartments or modules.
  • Each prefabricated construction module 5 could be a single habitable unit, e.g. apartment, or part of a single habitable unit.
  • Figure 1A shows an elevated perspective view of a construction site at which a building structure is being constructed from a plurality of prefabricated construction modules 5, an example of which is shown in Figure 2.
  • Figure 1B shows a multi-storey structure that may be constructed by vertical stacking of the prefabricated construction modules 5. At least one wall panel 100 of each prefabricated construction module 5 is joined to another wall panel 200 of an adjacently-arranged prefabricated construction module 5, by in-situ grouting in the middle joint between the wall panels 100, 200, to form a composite structural wall 55.
  • the composite structural wall 55 is designed to be built to the Standard Number SS EN 1992-1-1:2008, titled “Eurocode 2: Design of concrete structures, Part 1-1 General rules and rules for buildings", which is incorporated by reference herein.
  • the composite structural wall 55 may be built to other relevant national standards as well without deviating from the methods and wall panels 100, 200 disclosed herein.
  • a bedding joint is formed between the upper and lower composite walls 55.
  • the composite wall 55 is to be designed for an assumed eccentricity or imperfection of 20 mm.
  • Key or linking bars are placed along the center line of the composite wall 55 and are designed to take moment due to this eccentricity.
  • Each composite wall 55 may be a shear wall of the building structure.
  • Each composite wall 55 is designed as one element to take into account the design value of the applied axial or vertical force in the z-direction (N Ed ), bending moment in the x-direction (M Ed,xx ), and y-direction (M Ed,yy ), as shown in Figures 3A - 3D .
  • the illustrated x, y, and z directions are perpendicular to each other to represent a three-dimensional axis.
  • a wall panel 100 is shown.
  • the wall panel 100 comprises a panel body 101 which is provided with at least one groove 110 (on a surface of the panel body 101), and at least one guide 105 protruding from the at least one groove 110.
  • the wall panel 100 in Figure 3A is shown to have two grooves 110 each having three guides 105, but it is to be appreciated that other number of grooves 110 and/or guides 105 are possible in various embodiments. The position and number of grooves 110 and guides 105 are dependent on the required load bearing capacity and dimensions of the composite structural wall 55.
  • the wall panel 100 has two grooves 110, wherein two guides 105 protrude from each groove.
  • the guides 105 may be arranged near the ends of each groove 110 (i.e. top and bottom of the panel body) or at other suitable positions.
  • a third guide 105 may be provided near the middle portion of the panel body.
  • a single groove 110 and guide 105 may suffice.
  • the wall panel 100, 200 may be a precast concrete wall, i.e. the wall panel 100, 200 is fabricated at a site other than the actual site for constructing a building structure e.g. multi-storey building.
  • a pair of wall panels 100, 200 is shown and includes wall panel 100 of Figure 3A and another wall panel 200.
  • Wall panel 200 comprises a panel body 201 which is provided with at least one groove 210 formed on a surface of the panel body 201, and at least one guide 205 protruding from the at least one groove 210.
  • Both wall panels 100, 200 may have similar or complementary structure and features.
  • guides 105, 205 of both wall panels 100, 200 overlap to form a channel 25 which allows one or more linking bars 40 to be subsequently inserted there into (see Figures 4A, 4B and 6 ).
  • the guides 105, 205 may have some flexibility to allow bending to form the channel 25 when the wall panels 100, 200 are adjacently arranged as shown in Figure 3B .
  • the guides 105, 205 may be arranged in overlapping contact when wall panels 100, 200 are adjacently arranged as shown in Figure 3B .
  • the overlapping guides 105, 205 may have a vertical gap therebetween.
  • the guides 105, 205 are fabricated from flexible high strength steel wires.
  • the guides 105, 205 are attached to the wall panel 100, 200 with a portion, e.g. circular, semi-circular, arc, loop, protruding from the wall panel 100, 200.
  • the semi-circular portion of the guides 105, 205 is adapted to form the channel 25 and receive a first linking rod 40 and vertical securement rod 45.
  • the guides 105, 205 may be attached to the wall panel 100, 200 during the fabrication of the wall panel.
  • the guides 105, 205 may be formed by making a loop with a steel wire, with a portion of the loop embedded in the wall panel 100, 200 and the remaining portion protruding from the surface of the wall panel 100, 200 as shown in Figures 4A and 4B .
  • Two ends of the steel wire may be joined by a connector or cramp to form the loop.
  • the two ends are tied together, or placed in close proximity, as shown in the J-connection loop of Figure 14 , to be embedded within the wall panel with the loop or circular or oval portion of the steel wire protruding from the wall panel to form the channel 25.
  • the steel wires may have a tensile strength equal to at least 2.5% of the induced vertical load of the wall panel 100, 200.
  • the tensile strength of the wall panels 100, 200 depends, at least in part, on the number of guides 105, and may be varied accordingly.
  • FIG. 3A - 3D A method for constructing a composite structural wall 55 and/or building structure, is shown in Figures 3A - 3D and described below.
  • the method comprises providing a wall panel 100 ( Figure 3A ), adjacently arranging a first pair of wall panels 100, 200 with a first gap 30 therebetween ( Figure 3B ).
  • This step includes overlapping the guides 105, 205 (or first guides) of the first pair of wall panels 100, 200 to form a first channel 25.
  • the first gap 30 includes the space provided by the grooves 110, 210 (or first grooves) facing each other and the first channel 25 as seen most clearly in Figures 4A and 4B .
  • the first gap 30 further includes a space formed between facing non-grooved surfaces of the wall panels 100, 200.
  • the method further comprises inserting a first linking rod 40 into each first channel 25 ( Figure 3C ) to couple the wall panels 100, 200.
  • the first linking rods 40 should be of sufficient length to pass through the guides 105, 205 of both wall panels 100, 200.
  • the length of the first linking rod 40 is approximately or at least the whole longitudinal length of the at least one groove 110, 210.
  • the method further comprises dispensing a first grout into the first gap 30 ( Figure 3D ) while the first linking rods 40 couple the wall panels 100, 200.
  • the method further comprises curing and/or hardening the first grout to form a sealant 50 to join the first 100 and second wall panel 200 and thereby forming the composite structural wall 55 ( Figure 3D ).
  • the composite structural wall 55 constructed therefrom would behave as a monolithic structural wall and has increased load bearing capacity as compared to a similarly dimensioned composite wall formed from two precast concrete walls using traditional cast-in situ methods.
  • Figure 4A shows a top cross-sectional view of the first pair of wall panels 100, 200 corresponding to Figure 3C while Figure 4B shows an expanded view of Figure 4A , particularly the grooves 110, 210 and first channels 25 with the first linking rod 40 inserted.
  • the above-described method according to the invention produces a horizontal connection between adjacent wall panels 100, 200 to form a composite structural wall 55.
  • the invention allows horizontal securement or joining of horizontally adjacent prefabricated construction modules 5.
  • the invention further allows vertical securement or joining of vertically adjacent composite structural walls 55 or prefabricated construction modules 5. Accordingly, the above-described method for constructing a composite structural wall 55 and/or building structure, as shown in Figures 3A - 3D may be suitably modified as described below and shown in Figure 5A .
  • the method further comprises vertically stacking a second pair of adjacently arranged wall panels on the first pair of wall panels (see Figure 5A ).
  • This step includes overlapping the guides (or second guides) of the second pair of wall panels to form a second channel.
  • the wall panels of the second pair may have similar or identical configuration as the wall panels of the first pair and therefore the details of wall panels 100, 200 would apply correspondingly to the second pair of wall panels.
  • the method further comprises inserting a vertical securement rod 45, through the second channel and partially into the first channel 25, such that a lower end of the vertical securement rod 45 is at least partially inserted into the first channel and overlaps with a portion of the first linking rod 40 (see Figure 5A ).
  • the overlapped portion is known as the lap length and allows for the vertical loads to be transferred between the first linking rod 40 and vertical securement rod 45.
  • the grooves and channels of the first and of the second pair of wall panels 100, 200 should preferably be aligned in a substantially linear manner for greatest structural strength.
  • Figure 5A shows the vertical securement rod 45 disposed in the second channel while the second pair of wall panels, together with vertical securement rod 45, are being stacked upon the first pair of wall panels.
  • the vertical securement rod 45 may be inserted into the second and first channels after the second pair of wall panels are stacked on the first pair wall panels.
  • the method further comprises dispensing a second grout into a second gap between the second pair of wall panels, wherein dispensing a second grout into a second gap includes dispensing the second grout into the second channel.
  • the method further comprises inserting a second linking rod 47 into the second channel.
  • the second linking rod 47 may be of sufficient length to pass through the second guides of the second pair of wall panels. In an embodiment, the length of the second linking rod 47 is approximately or at least the whole longitudinal length of the second channel.
  • the vertical securement bar 45 is inserted into the first channel 25 prior to dispensing and curing the first grout, and also prior to vertically stacking the second pair of adjacently arranged wall panels on the first pair of wall panels.
  • a second linking rod 47 may be present in the second channel at the second pair of wall panels while the second pair of wall panels, together with second linking rods 47, are being stacked on the first pair of wall panels.
  • second linking rods 47 may be absent in the second channel at the second pair of wall panels while the second pair of wall panels are being stacked on the first pair of wall panels. Thereafter, the second linking rods 47 may be inserted into the second channel.
  • the vertical securement bar 45 may be inserted into the first channel 25 after the first grout is dispensed but before the first grout has cured completely.
  • the first grout is dispensed to a level below where the vertical securement rod 45 is to be inserted to, e.g. below the lap length.
  • the overlapping portion of the first linking rod 40, i.e. lap length, and the corresponding portion with respect to the first channel 25 and the first gap 30 remain ungrouted for the time being.
  • first grout dispensed may be allowed to cure without a need to quickly or immediately stack the second pair of wall panels and insert the vertical securement rod 45 into the first channel 25 before the first grout cures completely.
  • the vertical securement rod 45 is inserted into the second channel, a second grout is dispensed into the portion of the first channel 25 and gap 30 not filled by the first grout previously, and also into the second channel.
  • the second channel may be partially filled with the second grout, e.g. dispensed to a level below a subsequent overlap length to accommodate the third or subsequent pair of wall panels and its vertical securement rod.
  • the vertical securement rod 45 may additionally serve as the first 40 and/or second linking rod 47.
  • the vertical securement rod 45 is integral with or forms part of the first linking rod 40.
  • the vertical securement rod 40 is integral with or forms part of the second linking rod 47.
  • the vertical securement rod 45 is integral with or forms part of both the first 40 and the second linking rod 47.
  • the vertical securement rod 45 is only inserted partially into both the first channel 25 and the second channel.
  • the first linking rod 40, second linking rod 47, and/or vertical securement rod 45 may be steel rods.
  • further pairs of wall panels can be vertically stacked as described above, i.e., a third pair of adjacently arranged wall panels are stacked, in a vertical or upward direction, upon the second pair of joined wall panels, a fourth pair of adjacently arranged wall panels are vertically stacked on the third pair of joined wall panels, and so on.
  • the wall panels 100, 200 form part of separate prefabricated construction modules 5. Accordingly, references to adjacently arranging wall panels 100, 200 and vertically stacking adjacently arranged wall panels include, respectively, adjacently arranging prefabricated construction modules and vertically stacking adjacently arranged prefabricated construction modules.
  • the first channel 25 formed by the guides 105, 205 should be suitably sized to receive the first linking rod 40 as well as the vertical securement rod 45 to allow a second set of wall panels to be vertically stacked upon the first pair of wall panels.
  • Figure 6 shows a top cross-sectional view of the composite structural wall 55 with the first linking rod 40 and vertical securement rod 45 in the first channel 25.
  • the at least one groove 110, 210 may be of suitable dimensions to at least accommodate the protruded portion of the at least one guide 105, 205.
  • the combined depth of facing grooves 110, 210 ( Figure 6 , two of w 2 ) and the size of the gap 30 ( Figure 6 , w 3 ) may be slightly larger than the protruded portion of the at least one guide 105, 205. This minimises the dimensions of the structural composite wall 55 and the amount of grouting needed.
  • each wall panel 100, 200 is attached to a floor slab 15 ( Figure 7A and 8 ).
  • Each floor slab 15 may further comprise a slab guide 115 or 215.
  • the slab guide 115, 215 is similar to the guides 105, 205 in that the slab guides 115, 215 of adjacent floor slabs 15 are disposed in an overlapping arrangement to form the channel e.g. first channel 25.
  • a portion of each slab guide 115, 215 is embedded within a substantial length of the floor slab to provide the continuity of slab reinforcement.
  • the slab guide 115, 215 may be a high strength steel wire rope.
  • the slab guide 115, 215 has a higher tensile strength than the guide 105, 205 to provide reinforcement for the floor slab 15.
  • the floor slab 15 is further attached to a beam structure 17 to provide additional structural strength as shown in Figure 7B.
  • Figure 7B shows the composite structural wall 55 formed with attached floor slabs 15 and beam structures 17.
  • each wall panel 100, 200 in respective prefabricated construction modules 5 is further attached to a ceiling slab 10.
  • opposed end portions of each wall panel are respectively attached to a ceiling slab 10 and a floor slab 15 ( Figure 2 ).
  • the floor slab 15 of the upper module 5 may serve as the ceiling of the lower module.
  • backing rods 130, 230 are inserted or interposed between the first pair of prefabricated construction modules (optionally, ceiling slab 10 thereof) and floor slabs 15 of the second pair of prefabricated construction modules to provide a third gap which intersects the first and the second channel ( Figure 8 ).
  • Grout is dispensed to fill the third gap to join the first to the second pair of prefabricated construction module or floor slab 15 of the second pair of prefabricated construction module to the ceiling slab 10 of the first pair of prefabricated construction module.
  • the backing rods 130, 230 prevent leakage of grout and when the grout is cured, the bedding joint is formed.
  • the backing rods 130, 230, the first pair of prefabricated construction module or ceiling slab 10 thereof and floor slab 15 of second pair of prefabricated construction module may form an enclosed space for receiving grout.
  • the wall panel 100, 200 may further comprise a reinforcement structure to provide structural strength, in particular tensile strength, to the wall panel.
  • the reinforcement structure may also serve as an attachment or anchoring point for the guide 105, 205 to be attached to, for example by welding or tying.
  • the reinforcement structure may be embedded within the wall panel 100, 200 during the pre-fabrication process.
  • the reinforcement structure may be provided as a plurality of steel bars 125, 225, a mesh of steel bars or wires, or a plurality of corrugated pipes wherein each corrugated pipe is adapted to receive a steel bar.
  • Figures 4A and 4B show a reinforcement structure being a plurality of steel bars 125, 225 embedded in the wall panel.
  • Figure 9 shows a composite wall 55 which is joined from two wall panels 100, 200, each being embedded with a reinforcement structure comprising of a mesh of steel bars.
  • the mesh comprises an arrangement of intersecting vertical steel bars 125, 225 and horizontal steel bars 135, 235.
  • Figure 10 shows a top cross-sectional view of the composite wall 55 in Figure 9 .
  • Figures 11, 12A and 12B show a plurality of non-intersecting corrugated pipes 140, 240 embedded in the wall panel, wherein each corrugated pipe is adapted or sized to receive a steel bar.
  • a splice connector 145 may be provided to receive steel bars 125 of vertically stacked wall panels.
  • Figure 13 shows a composite structural wall 55 wherein in each wall panel, a splice connector 145 is attached to each steel bar 125 and is adapted to receive and secure to another steel bar of a vertically stacked wall panel.
  • the attachment of the splice connector 145 to the steel bars 125 may be by any suitable means, for example by a taper-threaded design, by welding, or by using grout.
  • Figure 13 shows the splice connector 145, which is arranged near the upper end of the wall panel 100, attached e.g.welded, to a vertical steel bar 125 of the wall panel 100 and positioned to receive a vertical steel bar 125 of a vertically stacked or upper wall panel (not shown).
  • a second (upper) pair of wall panels are being stacked on a first (lower) pair of wall panels, each vertical steel bar 125 from the upper wall panel is inserted into a splice connector and may be secured by a tapered design, welding or grout.
  • the splice connector 145 may alternatively be arranged at the lower end of the wall panel to receive steel bars of a lower wall panel.
  • reinforcement structures may also be used alone or in conjunction with the non-limiting examples described herein. It may be seen from the top cross-sectional view of the various embodiments that the reinforcement structure would not affect the method for joining the wall panels.
  • a shear resistance check may be performed to determine the structural integrity of the composite wall 55.
  • the shear resistance would be checked at the interface between the wall panel 100, 200 and the in-fill grout.
  • the shear resistance could be due to:
  • the surface of the wall panel 100, 200 with the at least one groove 110, 210 may be roughened to provide surface roughness for interface shear transfer.
  • the wall panel 100 is part of a prefabricated construction module 5 as shown in Figure 2 .
  • the prefabricated construction module 5 comprises a floor slab 15, at least one wall panel 100 as described herein, and optionally a ceiling 10 and/or a beam structure 17.
  • the prefabricated construction module 5 may further comprise at least one end wall 20.
  • the prefabricated construction module is to be joined to an adjacent prefabricated construction module using the wall panels 100, 200 and the method described herein.
  • the at least one wall panel 100 serves as the connection means between adjacent prefabricated construction modules 5.
  • Additional prefabricated construction modules 5 may be stacked on top of a lower pair of prefabricated construction modules 5 to stack the modules 5 and extend the building structure vertically upwards as per the addition of the wall panels vertically.
  • the channel 25 formed from the wall panels 100, 200 of adjacent prefabricated construction modules should be able to receive a vertical securement rod 45.
  • prefabricated construction modules 5 need not be identical, in particular for the horizontally adjoining prefabricated construction modules 5.
  • a prefabricated construction module 5 placed at an end of the structure will typically have one wall panel 100 and two or three end walls 20, whereas a prefabricated construction module in the center portion of the structure may have two or three wall panels 100, 200, and one or two end walls 20.
  • the wall panels 100, 200 serve as a connection means to join the adjoining prefabricated construction modules 5.
  • a prefabricated construction module 5 to be placed in the middle of a structure may have four wall panels 100, 200 for attachment to four other prefabricated construction modules 5. It will be apparent that other shapes for the prefabricated construction module 5 could be similarly designed and applied.
  • the end wall 20 and wall panel 100 may take on any shape or dimensions as required and/or have openings for door and/or window fittings as required.
  • the prefabricated construction module 5 may have an exposed side (i.e. no end wall or wall panel) as well to allow for different design structures.
  • a plurality of prefabricated construction modules 5 as described may be joined together to form a structure.
  • the structure may be a single or multi storey building.
  • the structure may be employed as buildings for private or commercial use.
  • the structure may possibly be of use as temporary buildings in events and disaster relief operations, where ease and speed of construction at the site is important.
  • a building structure comprises one or more composite structural walls 55 arranged as a single-storey or multi-storey arrangement.
  • Each composite structural wall 55 may comprise joined wall panels 100, 200 as described above, and therefore the corresponding description of wall panels 100, 200 and their features, including additions, combinations, alternatives, attachments, may be omitted here.
  • Each of the wall panels 100, 200 may form part of separate construction modules 5 as described above and therefore the corresponding description of their features, including additions, combinations, alternatives, attachments, may be omitted here.
  • a first 100 and second wall panel 200 is each constructed with a horizontal length ( l 1 ) of 1200 mm, a width (w 1 ) of 90 mm ( Figure 6 ).
  • the groove has a depth (w 2 ) 25 mm and length ( l 3 ) of 100 mm.
  • the wall panel 100 comprises two grooves 110 with centres which are 800 mm apart ( l 2 ).
  • a gap 30 of 20 mm (w 3 ) between the first 100 and second wall panel 200 is used to illustrate this example of the composite structural wall 55.
  • the reinforcement structure in the wall panels 100, 200 are steel bars 125, 225 embedded in the panel body 101, 201 along the longitudinal height of the wall panels 100, 200.
  • the composite structural wall of Example 1 has a width or thickness of 200 mm (assuming grouting width is 20 mm) and has a load bearing capacity similar to a conventional cast- in situ wall of similar width or thickness. It is to be appreciated that other grouting width or gap width is equally possible.
  • the reinforcement structure in the wall panels 100, 200 is a mesh of horizontal 135, 235 and vertical steel bars 125, 225 ( Figure 9 and 10 ).
  • the wall panels 100, 200 constructed with a length ( l 1 ) of 1000 mm, a width (w 1 ) of 140 mm, and a similar groove as in Example 1.
  • the wall panel 100 comprises two grooves 110 with centres which are 600 mm apart ( l 2 ).
  • the gap 30 between the first 100 and second wall panel 200 is 20 mm.
  • corrugated pipes 140, 240 or splice connectors 145 may be used in combination with the steel bars 125.
  • a prefabricated construction module 5 is constructed as in Figure 2 with a wall panel 100 as in Example 1, a floor slab 15 with a thickness of 130 mm, an end wall 20 with a width of 150 mm, and a ceiling slab 10 with a 50 mm x 50 mm hollow section size spaced at 600 mm centre to centre.
  • Embodiments of the invention as described herein allow for horizontally adjacent wall panels or prefabricated construction modules to be supported relative to each other via linking rods while grouting is dispensed and cured. This reduces construction time and labour requirements and therefore reduces construction costs.
  • Embodiments of the invention allow vertically stacked wall panels or prefabricated construction modules to be supported relative to each other via a vertical securement rod while grouting is dispensed and cured.
  • pre-cast wall panels 100, 200 and prefabrication construction modules 5 can be assembled into a building structure more quickly and efficiently at a construction site.
  • the wall panels 100, 200 and construction modules 5 may be fabricated in the factory while the foundation works at the construction site are on-going, thereby reducing the construction cycle time and leading to increased productivity.
  • the quality of the wall panels 100, 200 and construction modules 5 are improved due to the controlled environment they are prepared in.
  • a composite structural wall 55 constructed using the present invention would behave as a monolithic wall and therefore would be able to achieve similar load-bearing capacity as a monolithic wall constructed from existing cast-in situ method and having similar width dimensions or thickness. Accordingly, it will be appreciated that the invention will lead to reduction in construction costs while increasing productivity and economic benefits.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP17175623.2A 2016-06-28 2017-06-13 Verbundstrukturwand und verfahren zur konstruktion davon Active EP3263795B1 (de)

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SG10201703972WA SG10201703972WA (en) 2016-06-28 2017-05-15 Composite structural wall and method of construction thereof

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CN109296088A (zh) * 2018-09-29 2019-02-01 宁波普利凯建筑科技有限公司 一种预制轻质自保温外挂墙板及其制作方法
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WO2020096526A1 (en) * 2018-11-08 2020-05-14 Lin Wenjun Vincent Prefabricated volumetric module design, fabrication, assembly and installation method
WO2020098805A1 (en) * 2018-11-16 2020-05-22 Chun Wo Construction & Engineering Co., Ltd. Prefabricated module interconnection for modular building
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WO2021127739A1 (en) * 2019-12-24 2021-07-01 Structural Connections IP Pty Ltd Method and apparatus for connecting precast concrete elements
CN113175151A (zh) * 2021-03-27 2021-07-27 慈溪市庵东建筑安装工程有限公司 装配式环保建筑墙体及其施工方法
CN113502941A (zh) * 2021-07-23 2021-10-15 北京建筑大学 连接结构、建筑结构及建筑结构的制备方法
CN113622512A (zh) * 2021-08-17 2021-11-09 湖北茂捷建筑有限公司 一种新型轻钢龙骨灌浆墙
WO2021247502A1 (en) * 2020-06-02 2021-12-09 Slade Justin Hybrid system for modular construction of concrete buildings
CN114427267A (zh) * 2021-12-23 2022-05-03 浙江环宇建设集团有限公司 一种装配式建筑的预制外墙及其墙体快速连接构件
CN114525891A (zh) * 2022-02-24 2022-05-24 山东长箭建设集团有限公司 一种装配式建筑墙连接结构
WO2022124981A1 (en) * 2020-12-08 2022-06-16 Dragages Singapore Pte. Ltd. Prefabricated prefinished volumetric construction (ppvc) modules and methods of manufacture thereof
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CN113175151A (zh) * 2021-03-27 2021-07-27 慈溪市庵东建筑安装工程有限公司 装配式环保建筑墙体及其施工方法
CN113502941A (zh) * 2021-07-23 2021-10-15 北京建筑大学 连接结构、建筑结构及建筑结构的制备方法
CN113622512A (zh) * 2021-08-17 2021-11-09 湖北茂捷建筑有限公司 一种新型轻钢龙骨灌浆墙
CN114427267A (zh) * 2021-12-23 2022-05-03 浙江环宇建设集团有限公司 一种装配式建筑的预制外墙及其墙体快速连接构件
CN114427267B (zh) * 2021-12-23 2023-11-28 浙江环宇建设集团有限公司 一种装配式建筑的预制外墙及其墙体快速连接构件
CN114525891A (zh) * 2022-02-24 2022-05-24 山东长箭建设集团有限公司 一种装配式建筑墙连接结构
CN114525891B (zh) * 2022-02-24 2024-01-19 山东长箭建设集团有限公司 一种装配式建筑墙连接结构
CN117306681A (zh) * 2023-09-25 2023-12-29 广东晋华建设工程有限公司 一种装配式建筑

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PT3263795T (pt) 2019-07-25
PL3263795T3 (pl) 2019-10-31
CN111622374B (zh) 2022-04-12
DK3263795T3 (da) 2019-06-17
SG10201908614WA (en) 2019-10-30
SG10201703972WA (en) 2018-01-30
MY190080A (en) 2022-03-25
CN111622374A (zh) 2020-09-04
ES2733309T3 (es) 2019-11-28
CN107542190A (zh) 2018-01-05
SG10202107902RA (en) 2021-09-29
HK1244857B (zh) 2020-01-17
CN107542190B (zh) 2020-05-01
HK1244858A1 (zh) 2018-08-17

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