WO2013159682A1 - 一种带凹槽的预制钢筋混凝土构件及其制作方法 - Google Patents
一种带凹槽的预制钢筋混凝土构件及其制作方法 Download PDFInfo
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- WO2013159682A1 WO2013159682A1 PCT/CN2013/074493 CN2013074493W WO2013159682A1 WO 2013159682 A1 WO2013159682 A1 WO 2013159682A1 CN 2013074493 W CN2013074493 W CN 2013074493W WO 2013159682 A1 WO2013159682 A1 WO 2013159682A1
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- prefabricated
- reinforced concrete
- concrete member
- hole
- groove
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/12—Apparatus or processes for treating or working the shaped or preshaped articles for removing parts of the articles by cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
- B28B7/0082—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces with surfaces for moulding parallel grooves or ribs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
- B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
- B28B7/186—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article for plates, panels or similar sheet- or disc-shaped objects, also flat oblong moulded articles with lateral openings, e.g. panels with openings for doors or windows, grated girders
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- 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
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- 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
- E04B2/8647—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties going through the forms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
- E04C2/322—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material with parallel corrugations
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
Definitions
- the invention belongs to the technical field of prefabricated reinforced concrete structural members, in particular to a suitable integrated assembly Prefabricated reinforced concrete hollow member with transverse grooves on the longitudinal edges of the structure and a manufacturing method thereof.
- prefabricated concrete structures should be vigorously developed.
- the main structural components of the precast concrete structure are produced in the factory, with high production efficiency, good quality, saving resources and energy, and contributing to sustainable development.
- the use of precast concrete structure is the direction of the development of industrialization of buildings, and also the direction of the development of residential industrialization.
- precast concrete structures There are horizontal joints and vertical joints between the prefabricated concrete structures in the precast concrete structure, and the mechanical properties of the joints determine the overall performance of the joints.
- the existing joint construction measures for precast concrete structures generally seek to achieve the same effect as cast-in-place concrete, but because the new and old concrete joints at the joints are weak links, affecting the mechanical properties, and easy to crack, affecting normal use.
- holes are generally arranged in the prefabricated members to form a prefabricated hollow panel.
- the connection between prefabricated hollow members in the prior art is still a weak link.
- the object of the invention is to improve the industrialization level of the building structure, to solve the shortage of the indirect seam connection of the conventional prefabricated component, and to provide a precast reinforced concrete member with a groove and a manufacturing method thereof.
- the grooved prefabricated reinforced concrete member provided by the invention can realize the structural production of structural components, reduce the cost, save resources and energy, ensure the integrity of the prefabricated components in the structure, and improve the performance of the building structure.
- the invention provides a prefabricated reinforced concrete member with a groove, the member is a reinforced concrete precast plate, and the prefabricated plate has a longitudinal hole parallel to the surface, wherein the longitudinal edge of the prefabricated plate is spaced apart from the lateral groove, and The longitudinal holes near the edge of the prefabricated plate intersect.
- the load-bearing system of the wall load-bearing structure (such as shear wall structure) generally consists of a plane wall, floor, L-shaped, T Type, cross-shaped node and hole, etc., the corresponding overall structure can be decomposed into flat plate, T-shaped wall column, L Units such as wall columns, cross-shaped wall columns and members with opening parts are assembled in the factory and can be assembled into a fabricated structure.
- the precast reinforced concrete members proposed by the invention comprise precast concrete slabs (for walls and floors), precast concrete L Type, T-shaped, cross-shaped wall columns, precast concrete with wall panels, etc., with wall panels including both side edge members and upper coupling beams. In the structure, some wall ends have side pillars, and the part connected to the wall adopts the prefabricated reinforced concrete wallboard with lateral grooves proposed by the invention.
- the prefabricated reinforced concrete member proposed by the invention has a longitudinal hole parallel to the surface to reduce the weight of the prefabricated unit, and the hole is a round hole, a rounded rectangular hole and the like.
- the longitudinal edges (or at least one longitudinal edge) of the precast reinforced concrete members proposed by the present invention are provided with transverse grooves that intersect longitudinal holes adjacent the edges of the members.
- the edge of the member is toothed, and the groove is arranged at intervals from the protrusion.
- the groove retains concrete on one side of the prefabricated panel such that one side of one of the longitudinal edges of the prefabricated panel is toothed and the other side is straight.
- the lateral edges of the grooves of the precast reinforced concrete members proposed by the present invention are oblique to the longitudinal edges of the prefabricated panels or perpendicular to the longitudinal edges.
- the transverse groove of the precast reinforced concrete member proposed by the invention is arranged in parallel on two longitudinal edges, that is, the grooves on both sides are on the same horizontal line; or they may be staggered, that is, a groove is arranged at a certain portion of one longitudinal edge, and The corresponding position on one side is a protrusion.
- the prefabricated reinforced concrete member proposed by the invention is arranged with a steel mesh, and the steel mesh comprises longitudinal steel bars, transverse stirrups and lacing bars.
- a hole can be made in the lateral direction of the grooved precast reinforced concrete member, and the end of the hole communicates with the longitudinal hole.
- curved, angled, and the like shaped wall members may be present, and the grooved prefabricated reinforced concrete members of the present invention may also be employed.
- the grooved precast reinforced concrete member proposed by the invention can be used for shear wall structure and frame -
- the shear wall structure and the cylinder structure can also be used for the reinforced concrete wall load-bearing structural members such as the underground outdoor wall and the side wall of the storage tank.
- the invention provides a method for manufacturing a precast reinforced concrete member with a groove, which comprises the following steps:
- a bottom mold, a top mold, a side mold, and a steel tube for making a reserved hole are used as a template; wherein the side mold is concave at a certain distance, the shape of the top portion of the concave portion is The shape of the steel pipe is matched; the top mold is provided with a hole having the same outer shape as the steel pipe;
- a method for manufacturing a prefabricated reinforced concrete member with a groove characterized in that the method comprises the following steps:
- a groove is formed by a dicing saw at a longitudinal edge of the prefabricated hollow slab, and the groove intersects at least one longitudinal hole to form a grooved prefabricated reinforced concrete member.
- Shear wall structure and other wall load-bearing structures consist of flat wall, L-shaped, T And a cross-shaped node and a hole, a floor, etc.; correspondingly, the method for manufacturing a prefabricated reinforced concrete member with a groove according to the present invention produces a concrete planar wall member and a flat floor member according to a uniform specification and structure in a factory. , with wall material for the opening, and L Type, T type, cross type wall column members, etc.
- the prefabricated member proposed by the invention has a hole in the hole, is light in weight, and convenient in transportation and installation.
- Figure 1 is a schematic view of a prefabricated plate member of the present invention
- Figure 2 is a schematic cross-sectional view of Figure 1.
- Figure 3 is a schematic illustration of a template of a prefabricated plate member of the present invention.
- Figure 4 is a schematic illustration of a prefabricated component of the present invention with lateral grooves retaining concrete on one side of the prefabricated panel.
- Figure 5 is a schematic cross-sectional view of Figure 4.
- Figure 6 is a schematic view of the prefabricated member of the present invention with the grooves on both sides of the member staggered.
- Figure 7 is a schematic cross-sectional view of Figure 6.
- Figure 8 is a schematic illustration of a prefabricated T-shaped wall column member of the present invention.
- Figure 9 is a schematic illustration of a template of a prefabricated T-shaped wall column member of the present invention.
- Figure 10 is a schematic illustration of a prefabricated L-shaped wall column member of the present invention.
- Figure 11 is a schematic view of a prefabricated cruciform wall column member of the present invention.
- Figure 12 is a schematic illustration of a prefabricated walled member of the present invention.
- Figure 13 is a schematic view of a prefabricated member with a side column of the present invention.
- Figure 14 is a schematic illustration of a precast beam member of the present invention.
- Figure 15 is a schematic illustration of a prefabricated wall member at a beam support of the present invention.
- Embodiment 1 is a grooved precast reinforced concrete flat member, as shown in Fig. 1 and Fig. 2, a flat plate 11
- the longitudinal edges are arranged with lateral grooves 12 arranged in a staggered manner with the projections 13; the plate 11 is provided with a plurality of longitudinal holes 14, the holes near the longitudinal edges intersecting the transverse grooves 12; the plate 11
- a mounting eye 15 is provided on the top.
- the manufacturing method of Embodiment 1 includes the following steps:
- the grooved prefabricated reinforced concrete slab member can also be produced by using the existing prefabricated hollow slab production process, that is, the prefabricated plate with longitudinal holes is produced according to the existing prefabricated hollow slab production method, and is cut out at the longitudinal edge by a dicing saw.
- a precast flat member retaining concrete on one side of the groove can be produced, as shown in Figs. 4 and 5;
- the lateral grooves 42 and the projections 43, 42 and 43 are arranged in a staggered manner, wherein one side of the lateral groove 42 retains the concrete slab 44; the plate 41
- a prefabricated flat member in which the grooves on both sides of the member are alternately arranged can be produced, as shown in Figs.
- the tablet 61 The lateral edges of each side are alternately arranged with the lateral grooves 62 and the protrusions 63; the lateral grooves of the longitudinal edges of the two sides of the plate 61 are staggered, that is, one longitudinal edge is arranged with a groove, and the other longitudinal edge is disposed at a corresponding position; the plate 61 There are a plurality of longitudinal holes 64, and the holes near the longitudinal edges intersect the lateral grooves 62; the mounting rings 65 are provided on the plate 61.
- Embodiment 2 is a grooved precast reinforced concrete T-shaped wall column member, as shown in Fig. 8, the T-shaped wall column member 81
- the longitudinal edges are arranged with lateral grooves 82 (at least one longitudinal edge is arranged with lateral grooves), staggered with the protrusions 83 of the longitudinal edges; T-shaped wall column members 81
- a plurality of longitudinal holes 84 are opened, and the holes near the longitudinal edges intersect the lateral grooves 82; the T-shaped wall column members 81 are provided with mounting rings 85.
- T The three limbs of the wall column are made of limb lengths adapted to the requirements of the building structure.
- the length of the T-shaped wall column members generally takes the height of the building, and the thickness is generally thicker than the wall.
- the manufacturing method of Embodiment 2 includes the following steps:
- layout plate template 91, two L-shaped templates 92, and two top molds 93 are arranged on the production site according to the size requirements of the prefabricated components.
- the side mold 94 is concave inwardly at a certain distance, the concave portion end portion 941 and the inner steel tube 95 Fit together
- a prefabricated wall column member having an L-shaped cross shape and a cross shape can be produced, as shown in Figs. 10 and 11 .
- L-shaped prefabricated wall column member implementation such as FIG. 10, L-shaped prefabricated member 101
- the longitudinal edges are arranged with lateral grooves 102 (at least one longitudinal edge is arranged with lateral grooves) and the protrusions 103, 102 and 103 are staggered; the wall column member 101
- L The limbs of the wall column are made of limbs that meet the requirements of the building structure.
- the length of the L-shaped wall column member is generally determined by the height of the building and the thickness of the wall.
- the grooved prefabricated reinforced concrete cross-shaped wall column member is shown in Fig. 11, and the wall column member 111
- the longitudinal edges are arranged with lateral grooves 112 (at least one longitudinal edge is arranged with lateral grooves) and projections 113, 112 and 113 are staggered; wall column member 111
- a mounting eye 115 is provided on the upper side.
- the four limbs of the cross-shaped wall column adopt the length of the limb that meets the requirements of the building structure.
- the length of the cross-shaped wall column member is generally determined by the height of the building and the thickness of the wall.
- the grooved prefabricated reinforced concrete belt opening wall member 121 the component embodiment is shown in Fig. 12, the precast concrete plate 121 with the opening
- the longitudinal edges are arranged with lateral grooves 122 and projections 123, 122 and 123 arranged in a staggered manner;
- the wall member 121 is provided with a plurality of through-holes 124, the holes adjacent to the longitudinal edges and the transverse grooves 122. Intersection; the upper part of the opening of the hole has a number of vertical holes 125, and the bottom of the hole is generally not less than 20mm from the outer surface.
- the lower wall of the opening (when the door has a door opening, there is no such wall) has a plurality of vertical holes 126.
- a mounting eye 127 is provided on the wall member 121.
- the grooved prefabricated reinforced concrete belt side column wall member 131 of the present invention is shown in FIG. 13 and includes a prefabricated wall panel 132. And the side posts 133, at the longitudinal edges of 132 are arranged lateral grooves 134 and protrusions 135, 134 and 135 staggered; wall plate 132 A plurality of through-holes 136 are formed through the holes, and the holes near the longitudinal edges intersect the lateral grooves 134. A mounting eye 137 is disposed on the side wall member 131.
- the prefabricated reinforced concrete beam member 141 of the present invention is shown in Fig. 14, and the beam 141 is disposed at the beam end with a lateral groove 142. And the protrusions 143, 142 and 143 are staggered; the beam 141 has a plurality of through longitudinal holes 144 near the end, and the hole near the beam end intersects the lateral groove 142; the beam 141 The central portion has a plurality of vertical holes 145 which are not penetrated, and the bottom of the hole is generally not less than 20 mm from the outer surface.
- a mounting eye 146 is provided on the beam 141.
- the prefabricated wall member 151 at the beam support of the present invention is shown in Fig. 15, and the wall 151 is provided with a lateral groove 152 at the longitudinal edge. And the protrusions 153, 152 and 153 are staggered; the wall 151 has a plurality of through-holes 154, and the holes near the longitudinal edges intersect the lateral grooves 152; the wall 151 Receive 155 inside the beam support.
- a mounting eye 156 is disposed on the wall 151.
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Abstract
Description
Claims (9)
- 一种带凹槽的预制钢筋混凝土构件,该构件为钢筋混凝土预制板,预制板内开有与表面平行的纵向孔洞,其特征在于,预制板的纵向边缘间隔设置横向凹槽,所述横向凹槽与靠近预制板边缘的纵向孔洞相交。
- 根据权利要求1 所述的带凹槽的预制钢筋混凝土构件,其特征在于,所述预制钢筋混凝土构件为用于墙体或楼(屋)盖的平板;设置在该预制钢筋混凝土板内的钢筋骨架包括多个横向箍筋。
- 据权利要求1所述的带凹槽的预制钢筋混凝土构件,其特征在于,所述预制钢筋混凝土构件为T形、L 性、十字形墙柱;设置在该预制钢筋混凝土构件内的钢筋骨架包括多个横向箍筋。
- 据权利要求1 所述的带凹槽的预制钢筋混凝土构件,其特征在于,所述预制钢筋混凝土构件为开有洞口的墙板,所述墙板包括洞口、洞口上部连梁、洞口两侧墙体。
- 据权利要求1、2、3、4 所述的带凹槽的预制钢筋混凝土构件,其特征在于,所述凹槽在预制板的一侧板面保留混凝土。
- 据权利要求1、2、3、4 所述的带凹槽的预制钢筋混凝土构件,其特征在于,所述预制板的横向凹槽在两个纵向边缘交错布置。
- 据权利要求1、2、3、4 所述的带凹槽的预制钢筋混凝土构件,其特征在于,所述预制板内开有与表面平行的不贯通横向孔洞。
- 一种带凹槽的预制钢筋混凝土构件的制作方法,其特征是,包括下列步骤:(1)在预制板生产场地上,采用底模,顶模,侧模和多根用于制作预留孔的钢管内模作模板;其中,侧模每间隔一定距离向内凹,顶模上开有与钢管形状尺寸相同的孔洞;(2)将侧模、顶模和底模组合在一起,布置钢筋网,将多跟钢管穿过一侧顶模的孔洞,穿过钢筋网的间隙,穿过另一侧顶模的孔洞;侧模内凹部分的端部与钢管贴合在一起;(3)在侧模、顶模和底模组成的空间内浇筑混凝土,在混凝土硬化之前抽出钢管形成纵向贯穿孔洞;(4)待混凝土达到预期强度拆除底模,顶模,侧模,形成带凹槽的预制钢筋混凝土构件。
- 一种带凹槽的预制钢筋混凝土构件的制作方法,其特征是,包括下列步骤:(1)采用现有的预制空心板生产技术,生产出开有纵向孔洞的预制空心板;(2)在预制空心板纵向边缘用切割锯开出凹槽,凹槽与至少一个纵向孔洞相交,形成带凹槽的预制钢筋混凝土构件。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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RU2014147853A RU2608827C2 (ru) | 2012-04-27 | 2013-04-22 | Железобетонный строительный элемент с пазом для сборки и способ его изготовления |
US14/525,193 US20150040505A1 (en) | 2012-04-27 | 2014-10-27 | Precast reinforced concrete structure and method for forming the same |
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CN201210126921.3A CN102635197B (zh) | 2012-04-27 | 2012-04-27 | 一种带凹槽的预制钢筋混凝土构件及其制作方法 |
CN201210126921.3 | 2012-04-27 |
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US14/525,193 Continuation-In-Part US20150040505A1 (en) | 2012-04-27 | 2014-10-27 | Precast reinforced concrete structure and method for forming the same |
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US (1) | US20150040505A1 (zh) |
CN (1) | CN102635197B (zh) |
RU (1) | RU2608827C2 (zh) |
WO (1) | WO2013159682A1 (zh) |
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CN109881552A (zh) * | 2019-02-26 | 2019-06-14 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | 一种拼装式预制后张法预应力混凝土道面板结构及方法 |
CN112726841A (zh) * | 2020-12-29 | 2021-04-30 | 承德绿建建筑节能科技有限公司 | 一种上下层预制构件后插筋装配的施工方法 |
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CN102635197B (zh) * | 2012-04-27 | 2015-11-11 | 初明进 | 一种带凹槽的预制钢筋混凝土构件及其制作方法 |
KR101195308B1 (ko) * | 2012-06-15 | 2012-10-26 | 송용도 | 건축용 조립식 벽체 프레임 및 이를 이용한 천정 프레임 |
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Also Published As
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RU2608827C2 (ru) | 2017-01-25 |
US20150040505A1 (en) | 2015-02-12 |
RU2014147853A (ru) | 2016-06-20 |
CN102635197B (zh) | 2015-11-11 |
CN102635197A (zh) | 2012-08-15 |
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