CN110593397A - Multilayer assembled plate type building - Google Patents

Multilayer assembled plate type building Download PDF

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Publication number
CN110593397A
CN110593397A CN201910575098.6A CN201910575098A CN110593397A CN 110593397 A CN110593397 A CN 110593397A CN 201910575098 A CN201910575098 A CN 201910575098A CN 110593397 A CN110593397 A CN 110593397A
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CN
China
Prior art keywords
panel
concrete
construction
panels
groove
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Pending
Application number
CN201910575098.6A
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Chinese (zh)
Inventor
任宝双
吴迪
刘鹏举
马成发
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Zhongqingda Technology Co Ltd
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Zhongqingda Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Zhongqingda Technology Co Ltd filed Critical Zhongqingda Technology Co Ltd
Priority to CN201910575098.6A priority Critical patent/CN110593397A/en
Publication of CN110593397A publication Critical patent/CN110593397A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H1/00Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination, staggered storeys small buildings
    • E04H1/02Dwelling houses; Buildings for temporary habitation, e.g. summer houses
    • E04H1/04Apartment houses arranged in two or more levels

Abstract

The invention relates to a multi-storey assembled plate type building, which comprises a foundation, plate type bearing walls, constructional columns, floor/roof plates, parapet walls, stairs and/or elevators. The plate type bearing wall and the parapet adopt aerated concrete slabs or light aggregate concrete slabs, concrete constructional columns are arranged at four corners of an outer wall, corresponding corners, four corners of a building/elevator room, joints of longitudinal walls and transverse walls and other positions according to design requirements, and concrete ring beams are arranged at each floor and roof.

Description

Multilayer assembled plate type building
Technical Field
The invention belongs to the technical field of building components and structures and construction thereof, and relates to a plate type bearing wall, a constructional column and a corresponding multilayer assembled plate type building.
Technical Field
In 2019, in 2 months, the office hall of the housing and the department of urban and rural construction publishes 'notice about development of test-point work for rural housing construction', proposes to popularize and apply modern construction modes of the farm houses, and requires to popularize the modern construction modes of the farm houses according to local conditions. New green energy-saving technology, new products and new processes are applied to explore building application technologies such as assembly buildings and passive sunlight rooms. The construction of assembled farmhouses has become an important hand grip for advancing the vogue strategy of villages.
At present, the prefabricated concrete structure widely applied to urban residences is characterized in that an inner bearing wall is a prefabricated concrete wallboard, an outer bearing wall is a prefabricated concrete sandwich heat-insulation external wallboard, and a floor slab is a concrete prefabricated laminated slab. The components are large and heavy, and the requirement of component transportation and installation is difficult to meet by rural road foundation design. In addition, the prefabricated concrete structure has high technical requirement and high construction cost, and is difficult to popularize in batches in rural areas.
For many years, masonry structure buildings are widely applied in vast rural areas in China due to low technical requirements, good economy and flexible and convenient application. However, with the development of economy and society in China, the traditional masonry structure building also faces the challenge: the production of common clay bricks damages cultivated land and the building heat preservation performance is poor; the trend of aging of construction workers is more and more severe; the field construction has poor labor condition and high labor intensity; the environmental pollution of the construction site is serious. The traditional masonry structure is difficult to adapt to the requirements of sustainable development and high-quality development of the building industry in China.
The aerated concrete slab or the lightweight aggregate concrete slab adopted by the invention has high standardization degree and high industrial production efficiency. The secondary processing process of the component is a full-dry method, the technology is simple, and the pollution is small. The building member has light dead weight, is convenient to transport and install, can meet the requirements of self-insulation and fire prevention of buildings, meets the requirement of development of assembled buildings in China, and is particularly suitable for the building construction of vast rural areas in China.
Disclosure of Invention
The invention provides a plate type bearing wall and a constructional column, a corresponding multilayer assembled plate type building and a construction method thereof.
In one aspect, the present invention provides a multi-storey assembled panel building comprising a foundation, a panel load bearing wall, a constructional column, a floor/roof panel, a parapet wall and a staircase and/or an elevator, wherein:
the plate type load-bearing wall comprises a plurality of concrete wallboards, wherein the concrete wallboards are used in a side-to-side mode, through-long or discontinuous grooves are machined in the top surfaces of the concrete wallboards, vertical abutted seams between horizontally adjacent wallboards are generally arranged in a staggered mode, and semicircular or polygonal grooves are formed in the vertical abutted seams on the side surfaces of the wallboards;
the wall board is connected with the construction columns, and a serrated racking is arranged on the wall board at the connection position;
and horizontal lacing bars are arranged in horizontal abutted seams between the upper and lower layers of wallboards and are connected with the concrete constructional columns.
The foundation is a common concrete foundation or a common masonry foundation.
The wallboard is prepared from aerated concrete or light aggregate concrete.
The level is adjacent vertical piece between the wallboard generally staggers and arranges, and the distance of staggering is not less than half of wallboard height, nevertheless works as because of the needs of engineering implementation vertical piece forms when leading to the seam, can set up the overlap joint reinforcing bar in the level piece, and establish vertical through reinforcement in the side indent.
According to design requirements, cast-in-place concrete constructional columns are arranged at corner parts of the plate type load-bearing wall, including four corners of an outer wall, corresponding corners, four corners of a building/elevator room and joints of longitudinal walls and transverse walls.
The wallboard with the staggered formation horse tooth racking of constructional column junction accessible installation, perhaps the wallboard with the horse tooth racking is processed out in advance in constructional column junction.
At the concrete ring beam, a through long groove is processed on the top surface of the wallboard below the concrete ring beam to form the lower profile of the concrete ring beam, the width of the groove is consistent with the width of the section of the concrete ring beam, and the depth of the groove is determined by the height of the section of the ring beam and the thickness of a floor/roof slab; when the plate type bearing wall is an inner wall, the groove is positioned in the middle of the thickness of the wall body, and when the plate type bearing wall is an outer wall, the groove is positioned on the inner side of the wall body, so that an L-shaped structure is formed at the top of the wall.
The multi-layer assembled aerated concrete plate type building can be used for residential buildings such as houses, residential accommodations, country hotels and the like.
The aerated concrete slab or the lightweight aggregate concrete slab adopted by the invention has high standardization degree and high industrial production efficiency. The secondary processing process of the component is a full-dry method, the technology is simple, and the pollution is small. The building member has light dead weight, is convenient to transport and install, can meet the requirements of self-insulation and fire prevention of buildings, meets the requirement of development of assembled buildings in China, and is particularly suitable for the building construction of vast rural areas in China.
Drawings
The foregoing summary, as well as the following detailed description of the invention, will be better understood when read in conjunction with the appended drawings.
Fig. 1 is a schematic view of a multi-story assembled panel building according to one embodiment of the present invention.
Fig. 2A is a schematic view of an external corner of a heat-insulating outer wall in an assembled plate type building according to an embodiment of the invention.
Fig. 2B is a schematic view of an internal corner of a heat-insulating external wall in an assembled plate type building according to an embodiment of the present invention.
Figure 3 is a schematic view of a 600mm high plain wall panel according to one embodiment of the present invention.
Fig. 4 is a schematic view of a 600mm high thermal insulation external wall panel according to an embodiment of the invention.
FIG. 5 is a schematic view of an inner wall panel under a ring beam according to one embodiment of the invention.
Fig. 6 is a schematic view of a ring beam lower outer wall panel according to an embodiment of the present invention.
Detailed Description
In order that the technical solution, novel features, objectives and effects of the invention will be readily understood, the invention will be further illustrated and described in the following detailed description, taken in conjunction with the accompanying drawings.
In one embodiment, as shown in fig. 1 to 6, the multi-storey assembled panel building of the present invention comprises a foundation, a panel load bearing wall 110, a construction post 120, a floor/roof panel, a parapet wall and a staircase and/or an elevator, wherein:
the plate type load-bearing wall 110 comprises a plurality of concrete wall plates 112, wherein the concrete wall plates are used in a side-to-side mode, through-long or discontinuous grooves 111 are machined in the top surfaces of the concrete wall plates, vertical joints 114a between the horizontally adjacent wall plates 112 are generally arranged in a staggered mode, and semicircular or polygonal grooves 119 are formed in the vertical joints 114a on the side surfaces of the wall plates 112;
the wall panel 112 is connected to the construction post 120, and a serrated racking 140 is provided at the connection position of the wall panel 112;
a horizontal tie bar is arranged in the horizontal abutted seam 114b between the upper and lower wall plates 112 and is connected with the concrete constructional column 120.
The multi-layer assembled aerated concrete plate type building can be used for residential buildings such as houses, residential accommodations, country hotels and the like. For example, the number of building layers is not more than 8, the layer height is not more than 3.6m, and the room bay is not more than 4.8 m.
In one embodiment, the foundation is a common concrete foundation or a common masonry foundation.
The wall plate 112 is made of aerated concrete or lightweight aggregate concrete, and the strength grade of the plate is LC2.5-LC 15. The length of the plate is generally not more than 4.2m, the plate thickness is 200-400mm, the plate height is 200-600 mm, and the common plate heights are 300mm and 600 mm.
The depth of the groove 111 on the top surface of the wall plate 112 is 5-25mm, and the width of the groove 111 is 40-100mm smaller than the thickness of the wall plate 112.
And special mortar which is suitable for the strength grade of the material of the wall plate 112 is adopted for connection between the upper layer and the lower layer and between the horizontally adjacent wall plates 112, and the connection method comprises masonry connection and grouting connection after the reserved plate joints are sealed on the surface, for example, the net width of the plate joints is 3mm-20 mm.
Adjacent at the level vertical piece 114a between the wallboard 112 generally staggers and arranges, and the distance of staggering is not less than the half of wallboard 112 height, but works as because of the needs of engineering implementation vertical piece 114a forms when leading to the seam, can set up the overlap joint reinforcing bar in the horizontal piece 114b, the overlap joint reinforcing bar adopts smooth steel bar or ribbed steel bar. For example, the diameter of the steel bars is 6-10mm, the number of the steel bars is 2-3 along the wall thickness direction, and the length of the steel bars anchored into the two sides of the through seam of the plate type load-bearing wall 110 is 150-600 mm.
Cast-in-place concrete construction columns 120 are provided at corner portions of the slab type load bearing wall 110 including four corners of an outer wall and corresponding corners, four corners of a building/elevator hall, and junctions of vertical and horizontal walls, as required by design.
The section of the constructional column 120 is square, rectangular, L-shaped, T-shaped or cross-shaped, and the size of the main side of the constructional column is not less than 190 mm; for the exterior wall with thermal insulation requirement, the wall thickness is larger than the section width of the constructional column 120, the constructional column 120 is arranged at the inner side of the exterior wall, and the outer side of the constructional column 120 is the wall plate 112 with local thickness reduction, so that a thermal bridge prevention structure 125 (see fig. 6) at the constructional column 120 is formed.
The horizontal lacing wire reinforcing steel bars arranged in the horizontal splicing seams 114b of the plate type bearing wall 110 are smooth round steel bars or ribbed steel bars, the diameter of the horizontal lacing wire reinforcing steel bars is 6-10mm, the number of the horizontal lacing wire reinforcing steel bars is 2-3 along the wall thickness direction, the distance between the horizontal lacing wire reinforcing steel bars along the height direction of the plate type bearing wall 110 is 300mm and 600mm, and the length of the steel bars anchored into the plate type bearing wall 110 is not less than 1 m.
The slab-type load-bearing wall 110 is provided with a concrete ring beam 116 at each floor/roof, the width of the cross section of the concrete ring beam is not less than 190mm, and the height of the cross section is not less than 120 mm.
The height of serrated racking 140 is 300 or 600mm, and the net distance is 300 or 600mm, and serrated racking 140 concave-convex staggers the size and is 60 mm.
The panel construction according to claim 1, wherein when the panel height of the wall panel 112 is 300mm, the joints of the wall panel 112 and the construction post 120 may be staggered by installation by about 60mm to form 300mm high racking 140; when the board height of wallboard 112 is 600mm, stagger about 60mm in order to form 600mm high serrated racking 140 in wallboard 112 with constructional column 120 junction accessible installation, also can work out 300mm high serrated racking 140 in advance.
At the concrete ring beam 116, the top surface of the wall plate 112 below the concrete ring beam 116 is processed with a through long groove 111 to form the lower profile of the concrete ring beam 116, the width of the groove 111 is consistent with the cross section width of the concrete ring beam 116, and the depth of the groove 111 is determined by the cross section height of the ring beam 116 and the thickness of the floor/roof slab; when the plate type load bearing wall 110 is an inner wall, the groove 111 is positioned in the middle of the thickness of the wall, and when the plate type load bearing wall 110 is an outer wall, the groove 111 is positioned on the inner side of the wall, so that an L-shaped structure is formed 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 can be a common precast concrete lintel, a reinforced wall plate 112 or a cast-in-place concrete lintel; the top surface of the wall plate 112 under the lintel 130 can be machined with a through groove 111 to form the lower profile of the lintel 130, the width of the groove 111 corresponding to the width of the lintel 130 cross section, and the depth of the groove 111 being determined by the height of the lintel 130 cross section and the thickness of the floor/roof slab.
The parapet is made of ordinary cast-in-place concrete, an aerated concrete slab or a lightweight aggregate concrete slab, wherein when the aerated concrete slab or the lightweight aggregate concrete slab is used, the aerated concrete slab or the lightweight aggregate concrete slab is connected with the constructional column 120 or the roof ring beam 116 through connecting steel bars.
The floor/roof slab is a steel bar truss formwork-fixing floor support plate which adopts a wood structure plate, an aerated concrete plate, a lightweight aggregate concrete plate, a concrete prefabricated composite slab or cast-in-place concrete according to requirements.
The wall plate 112 and the building/roof slab are made of aerated concrete slabs or lightweight aggregate concrete slabs, and are configured with common plain steel bars or ribbed steel bars according to design requirements; the diameter of the steel bar is 6-14mm, and the distance between the two directions is 50-400 mm. The wall panel 112 is made of aerated concrete slab or lightweight aggregate concrete slab, and the reinforcing bars are generally of double-layer bidirectional structure; the reinforced bars of the aerated concrete slab or the lightweight aggregate concrete slab adopted by the floor/roof slab are of a double-layer bidirectional structure or a single-layer bidirectional structure. According to the engineering requirement, the reinforcing steel bar can be subjected to anticorrosion treatment.
The equipment pipeline in the plate-type building can be reserved with a hole of the pipeline and a box hole of the pipeline in advance in a component, and the pipeline is laid on site; or alternatively, the pipeline is fixed on the side surface of the wall body and the lower surface of the floor/roof cover plate through connecting pipeline clamps and is covered by an assembled wall surface and a ceiling decorative surface.
The aerated concrete slab or the lightweight aggregate concrete slab can be produced in a factory according to design requirements; or purchasing the aerated concrete slab or the lightweight aggregate concrete slab of the standard plate type, and carrying out secondary processing and manufacturing on the basis of the standard plate type by using a simple processing tool.
For buildings with higher thermal insulation requirements, the thickness of the building exterior wall is greater than the width of the ring beam and the construction column 120 to avoid the building exterior wall forming a thermal bridge, and the relevant wall panels 112 are pre-processed in the factory according to the construction requirements of the ring beam and the construction column 120. Optionally, the building outer wall can also adopt a rear-mounted heat-insulation decorative integrated plate.
The floor slab and the roof slab are made of wood structural slabs, aerated concrete slabs, lightweight aggregate concrete slabs, concrete precast composite slabs or reinforced truss mold-fixing floor bearing plates of cast-in-place concrete and the like according to requirements.
The slab type load-bearing wall 110 and the floor slab (roof panel) are made of aerated concrete slabs or lightweight aggregate concrete slabs which are configured with ordinary plain round steel bars or ribbed steel bars according to design requirements.
The stairs are concrete stairs, steel stairs or wood stairs.
In the description herein and in the drawings, the products and methods of the present invention are described in terms of particular shapes, materials, or process sequences, and specific parameters are provided for illustrative purposes with respect to specific embodiments. It should be understood, however, that the detailed description is not intended to limit the invention; that is, variations and modifications as to shape, material or process sequence are still included within the scope of the invention.

Claims (19)

1. A multi-storey assembled panel building comprising foundations, panel load bearing walls (110), construction columns (120), floor/roof panels, parapet walls and stairways and/or elevators, wherein:
the plate type load-bearing wall (110) comprises a plurality of concrete wallboards (112), wherein the concrete wallboards are used in a side-to-side mode, through-long or discontinuous grooves (111) are machined in the top surfaces of the concrete wallboards, vertical splicing seams (114a) between horizontal adjacent wallboards are generally arranged in a staggered mode, and semicircular or polygonal grooves (119) are formed in the vertical splicing seams (114a) on the side surfaces of the wallboards (112);
the wall board (112) is connected with the construction column (120), and a serrated racking (140) is arranged on the wall board (112) at the connection position;
horizontal lacing wire reinforcing steel bars are arranged in horizontal abutted seams (114b) between the upper wall plate and the lower wall plate (112) and connected with the concrete constructional columns (120).
2. The panel construction according to claim 1, wherein the foundation is a normal concrete foundation or a normal masonry foundation.
3. The panel construction according to claim 1, wherein the wall panel (112) is made of aerated concrete or lightweight aggregate concrete and has a panel strength rating of LC2.5-LC 15.
4. The panel construction according to claim 1, wherein the groove (111) of the top surface of the wall panel (112) is 5-25mm deep, the groove (111) width being 40-100mm smaller than the wall panel thickness; the width of the groove (119) on the side surface of the wall plate (112) is 30-150mm, and the depth of the groove (119) is 30-150 mm.
5. The panel construction according to claim 1, wherein between the upper and lower floors and the horizontally adjacent wall panels (112), special mortar connection corresponding to the strength grade of the material of the wall panels (112) is adopted, and the connection method comprises masonry connection and surface sealing reserved slab joints and grouting connection.
6. The panel type building according to claim 1, wherein the vertical joints (114a) between the horizontally adjacent wall panels are generally arranged in a staggered manner, the staggered distance is not less than half of the height of the wall panels, but due to the requirement of engineering implementation, when the vertical joints (114a) form through joints, lap joint reinforcing steel bars can be arranged in the horizontal joints (114b), vertical through reinforcing steel bars are arranged in the grooves (119) on the side surfaces of the wall panels (112), the lap joint reinforcing steel bars adopt round optical steel bars or ribbed steel bars, and the vertical through reinforcing steel bars adopt ribbed steel bars.
7. The panel-type building according to claim 1, wherein cast-in-place concrete construction columns (120) are provided at corner portions of the panel-type load-bearing wall (110) including four corners of an outer wall and corresponding corners, four corners of a building/elevator hall, and intersections of vertical and horizontal walls, according to design requirements.
8. The panel building according to claim 7, wherein the constructional column (120) has a square, rectangular, L-shaped, T-shaped or cross-shaped cross-section with major side dimensions not less than 190 mm; for an external wall with heat preservation and insulation requirements, the wall thickness is larger than the section width of the construction column (120), the construction column (120) is arranged on the inner side of the external wall, the outer side of the construction column (120) is the wallboard (112) with the local thickness being reduced, and therefore a heat bridge prevention structure (125) at the construction column (120) is formed.
9. The plate type building according to claim 1, wherein the horizontal lacing bars arranged in the horizontal splicing seams (114b) of the plate type load-bearing wall (110) are round bars or ribbed bars, the diameter of the horizontal lacing bars is 6-10mm, the number of the horizontal lacing bars is 2-3 in the wall thickness direction, the distance between the horizontal lacing bars in the height direction of the plate type load-bearing wall (110) is 300mm or 600mm, and the length of the horizontal lacing bars anchored into the plate type load-bearing wall (110) is not less than 1 m.
10. The slab construction according to claim 1, wherein said slab load-bearing wall (110) is provided with concrete ring beams (116) at each floor/roof, having a section width of not less than 190mm and a section height of not less than 120 mm.
11. The panel-form building of claim 1, wherein the serrated racking (140) has a height of 300 or 600mm, a clear distance of 300 or 600mm, and a serrated racking (140) indentation dimension of 60 mm.
12. The panel construction according to claim 1, wherein at the junction of the wall panel (112) and the construction post (120), a racking (140) having the same height as the wall panel (112) and the same clear distance as the wall panel (112) is installable staggered by about 60 mm; or a serrated racking (140) is pre-machined at the junction of the wall panel (112) and the construction post (120).
13. The panel construction according to claim 10, wherein at the concrete girt (116), the top surface of the wall panel (112) below the concrete girt (116) is machined with a through-length groove (111) to form the lower profile of the concrete girt (116), the groove (111) width corresponding to the concrete girt (116) cross-sectional width, the groove (111) depth being determined by the girt (116) cross-sectional height and the thickness of the floor/roof panel; when the plate type bearing wall (110) is an inner wall, the groove (111) is positioned in the middle of the thickness of the wall, and when the plate type bearing wall (110) is an outer wall, the groove (111) is positioned on the inner side of the wall, so that an L-shaped structure is formed at the top of the wall.
14. The panel-type building according to claim 1, wherein the panel-type load-bearing wall (110) is provided with a lintel (130) above a door opening (117) or a window opening (118), and the lintel (130) can be a common precast concrete lintel, a lintel doubled as the wall panel (112) for reinforcing the reinforcing bar, or a cast-in-place concrete lintel; the top surface of the wall plate (112) below the lintel (130) can be processed into a through long 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 slab.
15. The panel construction according to claim 1, wherein the parapet is made of general cast-in-place concrete, aerated concrete panel or lightweight aggregate concrete panel, wherein when the aerated concrete panel or lightweight aggregate concrete panel is made, the aerated concrete panel or the lightweight aggregate concrete panel is connected with the construction column (120) or the roof ring beam (116) through connecting steel bars.
16. The panel construction according to claim 1, wherein the floor/roof panels are formed as desired using wood structural panels, aerated concrete panels, lightweight aggregate concrete panels, precast concrete composite panels or cast-in-place concrete steel bar truss formwork flooring panels.
17. The panel construction according to claim 16, wherein the wall panels (112), the aerated concrete panels or lightweight aggregate concrete panels used for the floor/roof panels are configured with plain or ribbed rebar as design needs dictate; the wall board (112) adopts an aerated concrete slab or a light aggregate concrete slab, and the reinforcing bars are generally of double-layer bidirectional structures; the reinforced bars of the aerated concrete slab or the lightweight aggregate concrete slab adopted by the floor/roof slab are of a double-layer bidirectional structure or a single-layer bidirectional structure.
18. The panel construction according to claim 1, wherein the equipment pipeline is pre-installed with a hole for the pipeline and a box hole for the pipeline in the member, and the pipeline is laid on site; or alternatively, the pipeline is fixed on the side surface of the wall body and the lower surface of the floor/roof cover plate through connecting pipeline clamps and is covered by an assembled wall surface and a ceiling decorative surface.
19. The panel building of claim 1, wherein the stairs are concrete stairs, steel stairs, or wood stairs.
CN201910575098.6A 2019-06-28 2019-06-28 Multilayer assembled plate type building Pending CN110593397A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112127500A (en) * 2020-09-08 2020-12-25 重庆大学 Autoclaved aerated concrete curved edge wallboard-cast-in-place concrete ring beam and constructional column combined wall

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112127500A (en) * 2020-09-08 2020-12-25 重庆大学 Autoclaved aerated concrete curved edge wallboard-cast-in-place concrete ring beam and constructional column combined wall

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