Multi-layer assembled plate-type building

Abstract

The present invention relates to a multi-storey assembled plate-type building, comprising a foundation, plate-type load-bearing walls, structural columns, floor / roof panels, parapets, and stairs and / or elevators. The plate-type load-bearing walls and parapets are made of aerated concrete panels or light aggregate concrete panels, and concrete structural columns are arranged at the four corners of the outer wall and the corresponding corners, the four corners of the floor / elevator room, the intersection of the vertical and horizontal walls, etc. according to design requirements, and concrete ring beams are arranged at the floor and roof of each floor.

Description

Technical Field

[0001] The invention belongs to the technical field of building components and structures and their construction, and relates to a plate-type load-bearing wall and structural column, and a corresponding multi-story assembled plate-type building. Technical Background

[0002] In February 2019, the General Office of the Ministry of Housing and Urban-Rural Development issued the "Notice on Carrying out Pilot Work on Rural Housing Construction", proposing to promote the application of modern construction methods for rural houses, and requiring "to promote modern construction methods for rural houses in accordance with local conditions. It is necessary to apply new green and energy-saving technologies, new products, and new processes, and explore building application technologies such as prefabricated buildings and passive sun rooms". Prefabricated rural house construction has become an important tool for promoting the rural revitalization strategy.

[0003] At present, the prefabricated concrete structure widely used in urban residences uses precast concrete wall panels for internal load-bearing walls, precast concrete sandwich insulation exterior wall panels for external load-bearing walls, and precast concrete composite panels for floor slabs. The components are large and heavy, and the rural road foundation design is difficult to meet the requirements of component transportation and installation. In addition, precast concrete structures have high technical requirements and high construction costs, making them difficult to promote in large quantities in rural areas.

[0004] For many years, masonry structures have been widely used in rural areas of my country due to their low technical requirements, good economy, and flexible and convenient application. However, with the development of my country's economy and society, traditional masonry structures are also facing challenges: the production of ordinary clay bricks destroys arable land and has poor building insulation performance; the trend of aging construction workers is becoming more and more serious; on-site construction working conditions are poor and labor intensity is high; and the environmental pollution at the construction site is relatively serious. Traditional masonry structures have been unable to adapt to the requirements of sustainable development and high-quality development of my country's construction industry.

[0005] The aerated concrete board or lightweight aggregate concrete board used in the present invention has a high degree of standardization and high industrial production efficiency. The secondary processing process of the component is fully dry, the technology is simple, and the pollution is small. The building component of the present invention has a light weight, is convenient for transportation and installation, can meet the requirements of building self-insulation and building fire protection, meets the requirements of the development of prefabricated buildings in my country, and is particularly suitable for the needs of housing construction in my country's vast rural areas. Summary of the invention

[0006] The invention provides a plate-type load-bearing wall and a structural column, and a corresponding multi-layer assembled plate-type building and a construction method thereof.

[0007] In one aspect, the present invention provides a multi-storey prefabricated panel building, comprising a foundation, a panel-type load-bearing wall, a structural column, a floor / roof slab, a parapet, and a staircase and / or an elevator, wherein:

[0008] The plate-type load-bearing wall comprises a plurality of concrete wall panels, which are applied sideways and have through-length or intermittent grooves processed on the top surface. The vertical joints between horizontally adjacent wall panels are generally staggered, and the side surfaces of the wall panels are provided with semicircular or polygonal grooves at the vertical joints.

[0009] The wall panel is connected to the structural column, and a tooth joint is arranged on the wall panel at the connection;

[0010] Horizontal tie bars are provided in the horizontal joints between the upper and lower wall panels and are connected to the structural columns.

[0011] The foundation is an ordinary concrete foundation or an ordinary masonry foundation.

[0012] The wall panel is prepared by aerated concrete or lightweight aggregate concrete.

[0013] The vertical joints between the horizontally adjacent wall panels are generally staggered, with the staggered distance being not less than half the height of the wall panels. However, when the vertical joints form through joints due to the needs of project implementation, overlapping connecting steel bars may be arranged in the horizontal joints, and vertical through steel bars may be arranged in the side grooves.

[0014] According to design requirements, cast-in-place concrete structural columns are set at the corners of the plate-type load-bearing wall, including the four corners of the outer wall and the corresponding corners, the four corners of the building / elevator room, and the intersection of the vertical and horizontal walls.

[0015] A tooth joint can be formed at the connection between the wall panel and the structural column by staggered installation, or a tooth joint can be pre-processed at the connection between the wall panel and the structural column.

[0016] At the concrete ring beam, the top surface of the wall panel below the concrete ring beam is processed with a through-length groove to form the lower profile of the concrete ring beam, the groove width is consistent with the cross-sectional width of the concrete ring beam, and the groove depth is determined by the cross-sectional height of the ring beam and the thickness of the floor / roof slab; when the plate-type load-bearing wall is an interior wall, the groove is located in the middle of the wall thickness, and when the plate-type load-bearing wall is an exterior wall, the groove is located inside the wall, thereby forming an L-shaped structure at the top of the wall.

[0017] The multi-story assembled aerated concrete slab building can be used for residential buildings such as residences, homestays and country hotels.

[0018] The aerated concrete board or lightweight aggregate concrete board used in the present invention has a high degree of standardization and high industrial production efficiency. The secondary processing process of the component is fully dry, the technology is simple, and the pollution is small. The building component of the present invention has a light weight, is convenient for transportation and installation, can meet the requirements of building self-insulation and building fire protection, meets the requirements of the development of prefabricated buildings in my country, and is particularly suitable for the needs of housing construction in my country's vast rural areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above brief description and the following detailed description of the present invention will be better understood in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of a multi-story assembled panel building according to an embodiment of the present invention.

[0021] Figure 2A It is a schematic diagram of a positive corner of a thermal insulation exterior wall in a prefabricated panel building according to an embodiment of the present invention.

[0022] Figure 2B It is a schematic diagram of the inner corner of the thermal insulation exterior wall in a prefabricated panel building according to an embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of a 600 mm high ordinary wall panel according to an embodiment of the present invention.

[0024] Figure 4 It is a schematic diagram of a 600 mm high thermal insulation exterior wall panel according to an embodiment of the present invention.

[0025] Figure 5 It is a schematic diagram of an inner wall panel under a ring beam according to an embodiment of the present invention.

[0026] Figure 6 It is a schematic diagram of an exterior wall panel under a ring beam according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the technical solution, innovative features, objectives and effects of the present invention easy to understand, the present invention is further elaborated and illustrated in combination with specific illustrations and through the following specific implementation methods.

[0028] In one embodiment, Figures 1 to 6 As shown, the multi-storey assembled plate-type building of the present invention comprises a foundation, a plate-type load-bearing wall 110, a structural column 120, a floor / roof covering plate, a parapet, and stairs and / or an elevator, wherein:

[0029] The plate-type load-bearing wall 110 includes a plurality of concrete wall panels 112, which are applied sideways and have through-length or intermittent grooves 111 processed on the top surface. The vertical joints 114a between the horizontally adjacent wall panels 112 are generally staggered. The side surfaces of the wall panels 112 are provided with semicircular or polygonal grooves 119 at the vertical joints 114a.

[0030] The wall panel 112 is connected to the structural column 120, and a tooth joint 140 is provided on the wall panel 112 at the connection;

[0031] Horizontal tie bars are provided in the horizontal joints 114 b between the upper and lower wall panels 112 and are connected to the structural columns 120 .

[0032] The multi-storey assembled plate-type building can be used for residential buildings such as residences, homestays and rural hotels. For example, the number of floors of the building is not more than 8, the floor height is not more than 3.6m, and the room span is not more than 4.8m.

[0033] In one embodiment, the foundation is a common concrete foundation or a common masonry foundation.

[0034] The wall panel 112 is made of aerated concrete or lightweight aggregate concrete, and the panel strength grade is LC2.5-LC15. The panel length is generally not more than 4.2m, the panel thickness is 200-400mm, and the panel height is 200mm-600mm, and the commonly used panel height is 300mm and 600mm.

[0035] The groove 111 on the top surface of the wall panel 112 is 5-25 mm deep, and the width of the groove 111 is 40-100 mm smaller than the thickness of the wall panel 112 .

[0036] Between the upper and lower layers and the horizontally adjacent wall panels 112, special mortar suitable for the material strength grade of the wall panels 112 is used for connection. The connection methods include masonry connection and surface sealing and post-grouting connection of reserved panel joints. For example, the net width of the panel joints is 3mm-20mm.

[0037] The vertical joints 114a between the horizontally adjacent wall panels 112 are generally staggered, and the staggered distance is not less than half the height of the wall panel 112. However, when the vertical joints 114a form a through joint due to the needs of project implementation, overlapping connecting steel bars can be arranged in the horizontal joints 114b, and the overlapping connecting steel bars are plain round steel bars or ribbed steel bars. For example, the diameter of the steel bars is 6-10mm, the number of steel bars along the wall thickness direction is 2-3, and the length of the steel bars anchored in both sides of the through joint of the plate-type load-bearing wall 110 is 150-600mm.

[0038] According to design requirements, cast-in-place concrete structural columns 120 are arranged at the corners of the plate-type load-bearing wall 110, including the four corners of the outer wall and the corresponding corners, the four corners of the building / elevator room, and the intersection of the vertical and horizontal walls.

[0039] The cross section of the structural column 120 is square, rectangular, L-shaped, T-shaped or cross-shaped, and the main side dimension is not less than 190 mm; for the external wall with thermal insulation requirements, the wall thickness is greater than the cross-sectional width of the structural column 120, and the structural column 120 is arranged on the inner side of the external wall, and the outer side of the structural column 120 is the wall panel 112 with a locally reduced thickness, thereby forming a heat bridge prevention structure 125 at the structural column 120 (see Figure 6 ).

[0040] The horizontal tensioning steel bars arranged in the horizontal joints 114b of the plate-type load-bearing wall 110 are made of plain round steel bars or ribbed steel bars with a diameter of 6-10mm. The number of bars along the wall thickness direction is 2-3, and the spacing along the height direction of the plate-type load-bearing wall 110 is 300mm and 600mm. The length of the steel bars anchored in the plate-type load-bearing wall 110 is not less than 1m.

[0041] The plate-type load-bearing wall 110 is provided with a concrete ring beam 116 at each floor / roof, and the cross-sectional width thereof is not less than 190 mm, and the cross-sectional height is not less than 120 mm.

[0042] The height of the tooth joint 140 is 300 or 600 mm, the net distance is 300 or 600 mm, and the concave-convex staggered size of the tooth joint 140 is 60 mm.

[0043] In the multi-story prefabricated panel building, when the height of the wall panel 112 is 300 mm, a 300 mm high tooth joint 140 can be formed at the connection between the wall panel 112 and the structural column 120 by installing them with a staggered spacing of about 60 mm; when the height of the wall panel 112 is 600 mm, a 600 mm high tooth joint 140 can be formed at the connection between the wall panel 112 and the structural column 120 by installing them with a staggered spacing of about 60 mm, or a 300 mm high tooth joint 140 can be pre-processed.

[0044] At the concrete ring beam 116, the top surface of the wall panel 112 below the concrete ring beam 116 is processed with a through-length groove 111 to form the lower profile of the concrete ring beam 116. The width of the groove 111 is consistent with the cross-sectional width of the concrete ring beam 116, and the depth of the groove 111 is determined by the cross-sectional height of the ring beam 116 and the thickness of the floor / roof slab; when the plate-type load-bearing wall 110 is an interior wall, the groove 111 is located in the middle of the wall thickness, and when the plate-type load-bearing wall 110 is an exterior wall, the groove 111 is located inside the wall, thereby forming an L-shaped structure at the top of the wall.

[0045] The plate-type load-bearing wall 110 is provided with a lintel 130 above the door opening 117 or the window opening 118. The lintel 130 may be an ordinary precast concrete lintel, a lintel that is also served by a reinforced wall panel 112, or a cast-in-place concrete lintel. The top surface of the wall panel 112 below the lintel 130 may be processed into a through-length groove 111 to form the lower profile of the lintel 130. The width of the groove 111 is consistent with the cross-sectional width of the lintel 130, and the depth of the groove 111 is determined by the cross-sectional height of the lintel 130 and the thickness of the floor / roof cover.

[0046] The parapet wall is made of ordinary cast-in-place concrete, aerated concrete board or lightweight aggregate concrete board, wherein when aerated concrete board or lightweight aggregate concrete board is used, the aerated concrete board or the lightweight aggregate concrete board is connected to the structural column 120 or the roof ring beam 116 through connecting steel bars.

[0047] The floor / roof decking slabs may be wooden structural slabs, aerated concrete slabs, lightweight aggregate concrete slabs, prefabricated concrete composite slabs or reinforced truss fixed formwork floor decking slabs cast in situ, as required.

[0048] The aerated concrete board or light aggregate concrete board used in the wall board 112 and the floor / roof board is equipped with ordinary round steel bars or ribbed steel bars according to design requirements; the diameter of the steel bars is 6-14mm, and the spacing in both directions is 50-400mm. The aerated concrete board or light aggregate concrete board used in the wall board 112 is generally reinforced with a double-layer and two-way structure; the aerated concrete board or light aggregate concrete board used in the floor / roof board is reinforced with a double-layer and two-way structure or a single-layer and two-way structure. According to the needs of the project, the steel bars can be treated with anti-corrosion.

[0049] The equipment pipelines in the panel-type building can be pre-laid on site by leaving holes for the pipelines and openings for the pipeline boxes in the components; or optionally, the pipelines can be fixed to the side of the wall and the lower surface of the floor / roof panel by connecting pipeline clamps, and covered by assembled wall and ceiling finishes.

[0050] The aerated concrete board or the lightweight aggregate concrete board can be produced in a factory according to the design requirements; or the aerated concrete board or the lightweight aggregate concrete board can be purchased in a standard board shape and then secondary processed by simple processing tools based on the standard board shape.

[0051] For buildings with high insulation requirements, the thickness of the building exterior wall is greater than the width of the ring beam and the structural column 120 to avoid the formation of thermal bridges on the building exterior wall, and the relevant wall panels 112 are pre-processed in the factory according to the structural requirements of the ring beam and the structural column 120. Optionally, the building exterior wall can also use a post-installed thermal insulation decorative integrated panel.

[0052] The floor slab and the roof slab may be made of wood structure slab, aerated concrete slab, lightweight aggregate concrete slab, prefabricated concrete composite slab or reinforced truss fixed formwork floor slab cast in situ, etc., as required.

[0053] The aerated concrete slab or lightweight aggregate concrete slab used in the plate-type load-bearing wall 110 and the floor slab (roof slab) is provided with ordinary plain round steel bars or ribbed steel bars according to design requirements.

[0054] The staircase is a concrete staircase, a steel staircase or a wooden staircase.

[0055] In the description herein and in the accompanying drawings, the products and methods of the present invention are described as specific shapes, materials or process sequences, and some detailed parameters are provided for some specific embodiments for the purpose of illustration. However, it should be understood that these specific descriptions do not limit the technical solutions of the present invention; that is, changes and modifications of the shapes, materials or process sequences are still included in the scope of the present invention.

Claims

1. A multi-storey assembled plate-type building, comprising a foundation, a plate-type load-bearing wall (110), a structural column (120), a floor / roof slab, a parapet, and stairs and / or an elevator, wherein: The plate-type load-bearing wall (110) comprises a plurality of concrete wall panels (112) which are applied sideways and have a full-length or discontinuous groove (111) processed on the top surface; the vertical joints (114a) between the horizontally adjacent wall panels are staggered; and the side surfaces of the wall panels (112) are provided with semicircular or polygonal grooves (119) at the vertical joints (114a); The wall panel (112) is connected to the structural column (120), and a tooth joint (140) is provided on the wall panel (112) at the connection point; wherein, for an exterior wall with thermal insulation requirements, the wall thickness is greater than the cross-sectional width of the structural column (120), the structural column (120) is arranged on the inner side of the exterior wall, and the outer side of the structural column (120) is the wall panel (112) with a locally reduced thickness, thereby forming a heat bridge prevention structure (125) at the structural column (120); A horizontal joint (114b) between the upper and lower wall panels (112) is provided with horizontal tie bars connected to the structural columns (120); The plate-type load-bearing wall (110) is provided with a concrete ring beam (116) at each floor / roof; at the concrete ring beam (116), a through-length groove (111) is processed on the top surface of the wall panel (112) below the concrete ring beam (116) to form a lower profile of the concrete ring beam (116); the width of the groove (111) is consistent with the cross-sectional width of the concrete ring beam (116); the depth of the groove (111) is determined by the cross-sectional height of the ring beam (116) and the thickness of the floor / roof panel; when the plate-type load-bearing wall (110) is an interior wall, the groove (111) is located in the middle of the wall thickness; when the plate-type load-bearing wall (110) is an exterior wall, the groove (111) is located inside the wall, thereby forming an L-shaped structure at the top of the wall; The plate-type load-bearing wall (110) is provided with a lintel (130) above the door opening (117) or the window opening (118), and the lintel (130) is a common precast concrete lintel, a lintel that is also served by the reinforced wall panel (112), or a cast-in-place concrete lintel; the top surface of the wall panel (112) below the lintel (130) is processed into a full-length groove (111) to form a lower profile of the lintel (130), the width of the groove (111) is consistent with the cross-sectional width of the lintel (130), and the depth of the groove (111) is determined by the cross-sectional height of the lintel (130) and the thickness of the floor / roof slab; The wall panels (112) and the floor / roof panels are made of aerated concrete panels or lightweight aggregate concrete panels, and are provided with ordinary round steel bars or ribbed steel bars according to design requirements; the aerated concrete panels or lightweight aggregate concrete panels used in the wall panels (112) have a double-layer bidirectional reinforcement structure.

2. The slab-type building according to claim 1, wherein the foundation is an ordinary concrete foundation or an ordinary masonry foundation.

3. The panel-type building according to claim 1, wherein the wall panel (112) is made of aerated concrete or lightweight aggregate concrete, and the panel strength grade is LC2.5-LC15.

4. The panel-type building according to claim 1, wherein the groove (111) on the top surface of the wall panel (112) is 5-25 mm deep, and the width of the groove (111) is 40-100 mm smaller than the thickness of the wall panel; the groove (119) on the side surface of the wall panel (112) is 30-150 mm wide, and the groove (119) is 30-150 mm deep.

5. The panel-type building according to claim 1, wherein between the upper and lower layers and the horizontally adjacent wall panels (112), special mortar adapted to the material strength grade of the wall panels (112) is used for connection, and the connection methods include masonry connection and surface sealing and post-grouting connection of reserved panel joints.

6. The panel-type building according to claim 1, wherein the vertical joints (114a) between the horizontally adjacent wall panels are staggered, and the staggered distance is not less than half the height of the wall panel; when the vertical joints (114a) form a through joint, overlapping connecting steel bars are arranged in the horizontal joints (114b), and vertical through steel bars are arranged in the grooves (119) on the sides of the wall panels (112); the overlapping connecting steel bars are made of plain round steel bars or ribbed steel bars, and the vertical through steel bars are made of ribbed steel bars.

7. The panel-type building according to claim 1, wherein: According to design requirements, cast-in-place concrete structural columns (120) are arranged at the corners of the plate-type load-bearing wall (110), including the four corners of the exterior wall and the corresponding corners, the four corners of the building / elevator room, and the intersection of the vertical and horizontal walls.

8. The plate-type building according to claim 7, wherein the cross-section of the structural column (120) is square, rectangular, L-shaped, T-shaped or cross-shaped, and the main side dimension is not less than 190 mm.

9. The slab-type building according to claim 1, wherein the horizontal tensioning steel bars arranged in the horizontal joints (114b) of the slab-type load-bearing wall (110) are plain round steel bars or ribbed steel bars with a diameter of 6-10 mm, 2-3 bars in the wall thickness direction, and 300 mm or 600 mm in the height direction of the slab-type load-bearing wall (110). The length of the steel bars anchored in the slab-type load-bearing wall (110) is not less than 1 m.

10. The slab-type building according to claim 1, wherein the concrete ring beam (116) provided at each floor / roof of the slab-type load-bearing wall (110) has a cross-sectional width of not less than 190 mm and a cross-sectional height of not less than 120 mm.

11. The plate-type building according to claim 1, wherein the height of the tooth joint (140) is 300 or 600 mm, the net distance is 300 or 600 mm, and the staggered size of the tooth joint (140) is 60 mm.

12. The panel-type building according to claim 1, wherein at the connection between the wall panel (112) and the structural column (120), a tooth joint (140) having the same height and the same clearance as the wall panel (112) is formed by installing the wall panel (112) 60 mm apart; or a tooth joint (140) is pre-processed at the connection between the wall panel (112) and the structural column (120).

13. The slab-type building according to claim 1, wherein the parapet is made of ordinary cast-in-place concrete, aerated concrete slab or lightweight aggregate concrete slab, wherein when the aerated concrete slab or lightweight aggregate concrete slab is used, the aerated concrete slab or the lightweight aggregate concrete slab is connected to the structural column (120) or the roof ring beam (116) through connecting steel bars.

14. The panel building according to claim 1, wherein the floor / roof decking is made of wood structural board, aerated concrete board, lightweight aggregate concrete board, precast concrete composite board or reinforced truss fixed formwork floor decking of cast-in-situ concrete as required.

15. The slab-type building according to claim 14, wherein the aerated concrete slab or lightweight aggregate concrete slab used in the floor / roof slab has a double-layer bidirectional structure or a single-layer bidirectional structure as reinforcement.

16. The panel building according to claim 1, wherein holes for the equipment pipelines and openings for the pipeline boxes are reserved in the components in advance, and the pipelines are laid on site; or optionally, the pipelines are fixed to the side of the wall and the lower surface of the floor / roof panel by connecting pipeline clamps, and covered by assembled wall and ceiling finishes.

17. The panel-type building according to claim 1, wherein the staircase is a concrete staircase, a steel staircase or a wooden staircase.

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