Heat-preservation and energy-saving column foundation heat-preservation joint of building

Abstract

The utility model discloses a heat-preservation and energy-saving building column foundation heat-preservation joint which comprises an embedded part, a steel column and a high-strength heat-preservation cushion block. The embedded part comprises a positioning plate and a column foot anchor bolt and is embedded in the positioning plate when a reinforced concrete structural plate is poured, a higher part of the column foot anchor bolt is exposed according to the elevation of a steel column foot bottom plate, a high-strength heat preservation cushion block is arranged on the upper portion of the positioning plate, a hole is reserved in the position, corresponding to the column foot anchor bolt, of the high-strength heat preservation cushion block, and the column foot anchor bolt penetrates through the hole. A steel column base bottom plate penetrates through a column base anchor bolt to fall on the high-strength heat preservation cushion block and is firmly connected with the column base anchor bolt through a nut, a steel cover plate is arranged on the periphery of the steel column, the steel cover plate and the ground surface layer are located on the same horizontal plane, and the space between the steel cover plate and the steel column base bottom plate is filled with foaming polyurethane. On the premise that the structure bearing requirement is met, cold (heat) breaking is conducted on the column foundation part, a heat preservation surface layer does not need to be additionally adopted to wrap a building inner structure column (steel column), the size of the built building inner structure column is appropriate, and building space does not need to be additionally occupied.

Description

Technical Field

[0001] The utility model relates to a heat preservation and energy-saving building column foundation heat preservation node, belonging to the technical field of building heat preservation and energy saving. Background Technique

[0002] With the development of society, the material and spiritual living standards of people have been continuously improved, and a large number of building projects such as zero-energy buildings, nearly zero-energy buildings, indoor ice and snow activity places, cold storages, etc. have been constructed; such buildings have relatively high requirements for heat preservation and energy-saving design. High-standard building heat preservation and energy-saving design can effectively reduce the heat conduction between the internal environment and the external environment of such buildings, slow down the loss of cold (heat) quantity, reduce the building refrigeration (heating) energy consumption, so as to achieve various design goals such as economy, safety, energy saving, green, low-carbon, environmental protection, and sustainability. Such buildings usually achieve the heat preservation and energy-saving effect by setting heat preservation structures on the walls, roofs, and floors. In conventional designs, the internal heat preservation effect is better than the external heat preservation effect. In the internal heat preservation design, in order to avoid cold leakage (heat leakage) of structural members such as columns and beams, it is necessary to completely wrap the structural members such as columns and beams with heat preservation materials; due to the high requirements for heat preservation and energy-saving design of such buildings, the heat preservation surface layer is set relatively thick (up to more than 200 mm), the cross-sectional dimension of each side of the structural column increases significantly, and the cross-sectional dimension of the structural column after wrapping the heat preservation increases more, which requires additional building space and will have a negative impact on the internal use function and construction effect of such buildings, and it is difficult to install and fix facilities and equipment such as lamps and monitors on the surface of the structural column after wrapping the heat preservation surface layer. Content of the Utility Model

[0003] In order to solve the problems existing in the existing conventional practices that are not conducive to functions and effects, the utility model provides a heat preservation and energy-saving building column foundation heat preservation node, which cuts off cold (heat) at the column foundation part on the premise of meeting the structural bearing requirements, and there is no need to additionally use a heat preservation surface layer to wrap the structural columns in the building, so that the size of the structural columns in the building is appropriate after construction, and there is no need to additionally occupy the building space.

[0004] The technical solution of the utility model is as follows:

[0005] A heat preservation and energy-saving building column foundation heat preservation node includes an embedded part, a steel column, and a high-strength heat preservation cushion block; the embedded part includes a positioning plate and column base anchor bolts, which are embedded in the reinforced concrete structural slab during pouring. The column base anchor bolts expose a protruding part according to the elevation of the steel column base plate. A high-strength heat preservation cushion block is arranged on the upper part of the positioning plate. Holes are reserved on the high-strength heat preservation cushion block at the positions corresponding to the column base anchor bolts, and the column base anchor bolts pass through them. The steel column base plate passes through the column base anchor bolts and lands on the high-strength heat preservation cushion block and is firmly connected to the column base anchor bolts through nuts. A steel cover plate is arranged around the steel column, and the steel cover plate is on the same horizontal plane as the ground surface layer. Foamed polyurethane is filled between the steel cover plate and the steel column base plate.

[0006] As a preference of the present utility model, the steel column is a closed steel pipe with a geometric cross-section, and the inside of the bottom end of the steel column is filled with foamed polyurethane.

[0007] As a preference of the present utility model, a limit heat-insulating and fireproof washer is arranged between the steel column base plate, the column base anchor bolts and the nuts.

[0008] As a preference of the present utility model, through holes corresponding to and cooperating with the column base anchor bolts are reserved on the steel column base plate, and the column base anchor bolts pass through the through holes and are fixedly connected with the nuts by screwing.

[0009] As a preference of the present utility model, the steel cover plate is composed of two detachable steel plates spliced together.

[0010] As a preference of the present utility model, a non-shrinking fine aggregate concrete secondary grouting layer is arranged between the steel column base plate and the high-strength heat-insulating cushion block.

[0011] As a preference of the present utility model, the upper waterproof and vapor barrier layer in the ground turns up and adheres to the surface of the steel column.

[0012] As a preference of the present utility model, the cement mortar leveling layer and the lower waterproof and vapor barrier layer in the ground are extended and laid between the positioning plate and the high-strength heat-insulating cushion block.

[0013] The beneficial effects of the present utility model are as follows:

[0014] In the present utility model, high-strength heat-insulating cushion blocks are arranged at the column foundation part of the steel column to conduct the upper load to the lower column foundation. At the same time, the high-strength heat-insulating cushion blocks are seamlessly connected with the heat-insulating layer in the surrounding ground structure layer to form a continuous ground heat-insulating layer without cold bridges. Foamed polyurethane with good heat-insulating effect is filled inside the bottom end of the steel column and above the column base plate, and a limit heat-insulating and fireproof washer is arranged between the column base plate, the column base anchor bolts and the nuts to isolate the local heat and cold conduction at each place above; realizing that under the premise of meeting the structural load-bearing requirements, the column foundation part is thermally broken (heat-insulated), and there is no need to additionally use a heat-insulating surface layer to wrap the internal structural column (steel column) of the building, so that the size of the internal structural column of the building is appropriate after construction and does not need to additionally occupy the building space; at the same time, facilities and equipment such as fixed lamps and monitors can be installed on the internal structural column of the building. Description of the Drawings

[0015] Figure 1 is the schematic plan view of the present utility model;

[0016] Figure 2 is Figure 1 the sectional view at A in

[0017] Figure 3 is Figure 1 the sectional view at B in

[0018] Figure 4Yes Figure 2 Schematic enlarged view at position a in the figure.

[0019] Meanings of the reference numerals in the figure:

[0020] 1 - Column base anchor bolt, 2 - Positioning plate, 3 - Nut, 4 - High-strength thermal insulation pad, 5 - Foamed polyurethane;

[0021] 6 - Steel cover plate, 7 - Column base plate, 8 - Non-shrinkage fine aggregate concrete secondary grouting layer, 9 - Steel column;

[0022] 10 - Reinforced concrete structural slab, 11 - Cement mortar leveling layer, 12 - Lower waterproof and vapor barrier layer;

[0023] 121 - Upper waterproof and vapor barrier layer, 13 - Extruded polystyrene board thermal insulation layer, 14 - Lower fine aggregate concrete leveling layer;

[0024] 141 - Upper fine aggregate concrete leveling layer, 15 - Cement mortar protective layer;

[0025] 16 - Floor surface layer, 17 - Limit thermal insulation and fireproof washer. Specific implementation mode

[0026] The present utility model will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0027] As Figures 1-4 shown, this embodiment is a thermal insulation node for a thermal insulation and energy-saving building column foundation, including a pre-embedded part, a steel column 9, and a high-strength thermal insulation pad 4; the pre-embedded part includes a positioning plate 2 and a column base anchor bolt 1, which are pre-embedded during the pouring of the reinforced concrete structural slab 10. The column base anchor bolt 1 exposes a protruding part according to the elevation of the column base plate 7 of the steel column 9. A high-strength thermal insulation pad 4 is arranged on the upper part of the positioning plate 2, and holes are reserved on the high-strength thermal insulation pad 4 at positions corresponding to the column base anchor bolts 1. The column base anchor bolts 1 pass through them. The column base plate 7 of the steel column 9 passes through the column base anchor bolts 1 and lands on the high-strength thermal insulation pad 4 and is firmly connected to the column base anchor bolts 1 through nuts 3. A steel cover plate 6 is arranged around the steel column 9. The steel cover plate 6 is on the same horizontal plane as the floor surface layer 16, and foamed polyurethane 5 is filled between the steel cover plate 6 and the column base plate 7 of the steel column 9.

[0028] During construction, the nut 3 is used to limit the four column base anchor bolts 1 relying on the positioning plate 2 and then pre-buried and cast in the lower reinforced concrete structural slab 10. The column base anchor bolts 1 sequentially pass upward through the positioning plate 2, the cement mortar leveling layer 11, the lower waterproof and vapor barrier layer 12, the high-strength thermal insulation pad 4, the non-shrinkage fine aggregate concrete secondary grouting layer 8, and the column base plate 7; four holes are arranged inside the high-strength thermal insulation pad 4, which are aligned and fitted with the four column base anchor bolts 1, facilitating the sleeving and positioning of the high-strength thermal insulation pad 4 during construction; the nut 3 and the column base anchor bolts 1 are used to fixedly arrange the column base plate 7 of the steel column 9 on the upper part of the high-strength thermal insulation pad 4; through holes corresponding to and cooperating with the column base anchor bolts 1 are reserved on the column base plate 7 of the steel column 9, and the column base anchor bolts 1 pass through the through holes and are threadedly connected and fixed with the nuts 3; in this embodiment, a limit thermal insulation and fireproof washer 17 is arranged among the column base plate 7 of the steel column 9, the column base anchor bolts 1, and the nuts 3; the steel column 9 is a closed steel pipe with a rectangular cross-section, and the bottom end inside the steel column 9 is filled with foamed polyurethane 5; in practical applications, the steel column 9 can also be a closed steel pipe with other geometric cross-sections, such as circular.

[0029] The steel column 9 is hollow, and foamed polyurethane 5 is filled inside the bottom end within a certain height range; in this embodiment, the cross-sectional shape of the steel column 9 is rectangular, and in practical applications, the cross-sectional shape of the steel column 9 can also be circular or other geometric shapes; four through holes corresponding to and fitted with the four column base anchor bolts 1 are arranged on the column base plate 7 at the bottom end of the steel column 9, the top ends of the column base anchor bolts 1 pass through the corresponding through holes, and the column base plate 7 is locked and fixed by the nuts 3; a limit thermal insulation and fireproof washer 17 is arranged among the column base plate 7, the column base anchor bolts 1, and the nuts 3 to completely cut off the cold (heat) between the upper steel column 9 and the lower column base anchor bolts 1; in practical applications, the number of column base anchor bolts 1 can be adjusted according to the structural design, and the number of holes on the high-strength thermal insulation pad 4 and the through holes on the column base plate 7 of the steel column 9 are adjusted accordingly.

[0030] In this embodiment, the steel cover plate 6 is composed of two detachable steel plates spliced together; specifically, two symmetrically spliced steel plates are arranged at the ground elevation of the lower part of the steel column 9, with a U-shaped plane and angle steel support; the steel cover plate 6 is opened daily, and the foamed polyurethane 5 between the steel cover plate 6 and the column base plate 7 is removed, then the column foundation part of the steel column 9 can be repaired and maintained. After the repair work is completed, the foamed polyurethane 5 is refilled and the steel cover plate 6 is covered, and it can be restored to its original state.

[0031] In this embodiment, a non-shrinkage fine aggregate concrete secondary grouting layer 8 is arranged between the column base plate 7 of the steel column 9 and the high-strength thermal insulation pad 4; the upper waterproof and vapor barrier layer 121 inside the ground is turned up and attached to the surface of the steel column 9; the cement mortar leveling layer 11 and the lower waterproof and vapor barrier layer 12 inside the ground are extended and laid between the positioning plate 2 and the high-strength thermal insulation pad 4; the upper waterproof and vapor barrier layer 121 and the lower waterproof and vapor barrier layer 12 are waterproof coiled materials or waterproof coatings.

[0032] In this embodiment, the ground treatment around the steel column 9 includes a reinforced concrete structural slab 10, a cement mortar leveling layer 11, a lower waterproof and vapor barrier layer 12, an extruded polystyrene board insulation layer 13, a lower fine stone concrete leveling layer 14, an upper waterproof and vapor barrier layer 121, a cement mortar protective layer 15, an upper fine stone concrete leveling layer 141, and a ground surface layer 16, which are arranged in sequence from bottom to top; a non-shrinking fine stone concrete secondary grouting layer 8 is provided between the bottom column base plate 7 of the steel column 9 and the high-strength insulation pad 4; in the ground treatment, the upper waterproof and vapor barrier layer 121 turns up and adheres to the surface of the lower column body of the steel column 9 to a certain height above the ground; the high-strength insulation pad 4 is aligned and flush with the extruded polystyrene board insulation layer 13 in the surrounding ground treatment, and the non-shrinking fine stone concrete secondary grouting layer 8 is aligned and flush with the lower fine stone concrete leveling layer 14 in the surrounding ground treatment; in practical applications, the thicknesses of the high-strength insulation pad 4, the non-shrinking fine stone concrete secondary grouting layer 8, the extruded polystyrene board insulation layer 13, and the lower fine stone concrete leveling layer 14 can be adjusted to meet specific design requirements; the cement mortar leveling layer 11 and the lower waterproof and vapor barrier layer 12 provided on the reinforced concrete structural slab 10 in the ground treatment extend and are laid between the positioning plate 2 and the high-strength insulation pad 4; in practical applications, the cement mortar leveling layer 11 laid on the positioning plate 2 is different from the cement mortar leveling layer 11 in the surrounding ground treatment, and the strength grades of both it and the non-shrinking fine stone concrete secondary grouting layer 8 need to be determined through structural calculations.

[0033] In this embodiment, high-strength insulation pads are provided at the column foundation part of the steel column to transfer the upper load to the lower column foundation. At the same time, the high-strength insulation pads are seamlessly connected with the insulation layer in the surrounding ground surface structure layer to form a continuous ground insulation layer without cold bridges. Foamed polyurethane with good heat insulation effect is filled inside the bottom end of the steel column and above the column base plate. A limit insulation and fireproof washer is provided between the column base plate, the column base anchor bolt, and the nut to isolate the local heat and cold conduction at each of the above locations; it is realized that under the premise of meeting the structural bearing requirements, the column foundation part is thermally broken (heat-insulated), and there is no need to additionally use an insulation surface layer to wrap the internal structural column (steel column) of the building, so that the size of the internal structural column of the building is appropriate after construction and does not need to additionally occupy the building space; at the same time, facilities and equipment such as fixed lamps and monitors can be installed on the internal structural column of the building.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are all based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0035] In the description of the present utility model, it should be noted that: unless otherwise clearly specified and defined, the terms "installation", "connection", "setting", and "formation" should be understood in a broad sense; for example: it can be a fixed connection and setting, or a detachable connection and setting, or an integral structure; it can be a direct connection, or an indirect connection through an intermediate medium, and can also be the communication inside two components; for those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] The above embodiments are only used to illustrate the technical solutions of the present utility model. Those skilled in the art should understand that the above embodiments do not limit the present utility model in any form. Any technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present utility model.

Claims

1. A heat-insulating energy-saving building column foundation heat-insulating node, comprising embedded parts, steel columns, and high-strength heat-insulating pads; characterized in that: The embedded parts include positioning plates and column foot anchor bolts, which are embedded in the reinforced concrete structural slab when it is cast. The column foot anchor bolts expose a protruding portion according to the elevation of the steel column column foot bottom plate. A high-strength thermal insulation pad is arranged on the upper part of the positioning plate. Holes are reserved on the high-strength thermal insulation pad at the positions corresponding to the column foot anchor bolts, through which the column foot anchor bolts pass. The steel column column foot bottom plate passes through the column foot anchor bolts and falls on the high-strength thermal insulation pad and is firmly connected to the column foot anchor bolts through nuts. A steel cover plate is arranged around the steel column. The steel cover plate and the ground surface layer are at the same level. Foamed polyurethane is filled between the steel cover plate and the steel column column foot bottom plate.

2. The heat-insulating node of a column foundation of a heat-insulating and energy-saving building according to claim 1 is characterized in that: The steel column is a closed steel pipe with a geometric cross section, and the bottom end of the steel column is filled with foamed polyurethane.

3. The heat-insulating node of a column foundation of a heat-insulating and energy-saving building according to claim 1 is characterized in that: A limiting heat-insulating fireproof gasket is arranged between the steel column foot bottom plate, the column foot anchor bolt and the nut.

4. The heat-insulating node of a column foundation of a heat-insulating and energy-saving building according to claim 1, characterized in that: A through hole corresponding to the column foot anchor bolt is reserved on the bottom plate of the steel column foot, and the column foot anchor bolt passes through the through hole and is threadedly connected and fixed with a nut.

5. The heat-insulating node of a column foundation of a heat-insulating and energy-saving building according to claim 1, characterized in that: The steel cover plate is formed by splicing two detachable steel plates.

6. The heat-insulating node for column foundation of a heat-insulating and energy-saving building according to claim 1, characterized in that: A secondary grouting layer of non-shrinkage fine stone concrete is arranged between the steel column foot bottom plate and the high-strength thermal insulation pad.

7. The heat-insulating node for column foundation of a heat-insulating and energy-saving building according to claim 1, characterized in that: The upper waterproof vapor barrier layer in the ground is turned up and attached to the surface of the steel column.

8. The heat-insulating node of a column foundation of a heat-insulating and energy-saving building according to claim 1, characterized in that: The cement mortar leveling layer in the ground and the lower waterproof vapor barrier layer are extended and laid between the positioning plate and the high-strength thermal insulation pad.

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