A cold region overhead building steel column foot heat insulation system

Abstract

The utility model belongs to the technical field of building in severe cold area relates to a kind of overhead building steel column foot heat insulation system in severe cold area, it includes foundation and building steel column (3), column foot anchor bolt (7) is arranged on foundation and top is provided with slot shape limiting pad plate (8), slot shape hard wood (9) is arranged in slot shape limiting pad plate (8), the column foot bottom plate (10) of building steel column (3) is arranged in slot shape hard wood (9), the top of column foot anchor bolt (7) is cooperated with nut (11), to be closely connected together with the column foot bottom plate (10), slot shape hard wood (9), slot shape limiting pad plate (8) with the foundation.It cancels column foot shear key setting, adopts slot shape limiting pad plate and slot shape hard wood as column foot heat insulation measure, both can ensure the reliable force transmission demand of overhead building in severe cold area, and column foot heat insulation effect is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of building technology in frigid regions, and relates to a steel column base insulation system for buildings in frigid regions, and more particularly to a steel column base insulation system for elevated buildings in frigid regions. Background Technology

[0002] For buildings, the column base connects the main load-bearing column to the foundation, transferring the bending moment, axial force, and shear force of the load-bearing column to the foundation. It is a critical node related to structural safety and requires a reliable connection.

[0003] For elevated buildings in extremely cold regions such as permafrost and the Arctic and Antarctic, there are generally two types of elevated structures. One type of elevated structure is as follows: Figure 1 As shown, the lower column pier 2 is buried in the ground 1, and the lower end of the building's steel column 3 extends outdoors so that its bottom column base 5 is connected to the upper end of the lower column pier 2. Insulation material 4 is installed on the exterior of the portion of the building's steel column 3 extending outdoors; another elevated method is as follows... Figure 2 As shown, the lower column base 2 is also buried in the ground 1. However, a lower steel column 6 is set on the lower column base 2. Most of the building's steel columns 3 are located indoors and their bottom column feet 5 are connected to the upper end of the lower steel column 6. Insulation material 4 is installed on the outside of the building as a whole.

[0004] Regardless of the type of elevated structure used, the outdoor air temperature and the temperatures of the outdoor column bases 2 and 6 are often much lower than the indoor operating temperature. Heat transfer occurs between the indoor and outdoor areas, and at the column feet 5, which contact the column bases 2 or 6. Due to connection requirements, the column feet 5 penetrate the building's insulation material 4. Without effective insulation measures, the insulation effect at this point is reduced, leading to increased energy consumption, large temperature fluctuations in localized areas, and even condensation and icing. Furthermore, the insulation requirements of the column feet 5 and the use of flexible insulation materials often conflict with the requirement for reliable connections. In particular, the commonly used shear keys and shear keyways in existing technologies increase weak points in heat transfer.

[0005] Given the technical deficiencies of existing technologies, there is an urgent need for a steel column base insulation system suitable for elevated buildings in frigid regions. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a steel column base insulation system for elevated buildings in frigid regions, which can ensure the reliable force transmission requirements of elevated buildings in frigid regions and significantly improve the insulation effect of the column base.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A thermal insulation system for steel column bases of elevated buildings in extremely cold regions includes an outdoor foundation and a building steel column. The system is characterized by column base anchors on the foundation, a channel-shaped limiting pad on the top of the foundation such that the top of the column base anchor passes through the channel-shaped limiting pad, a channel-shaped hardwood plate within the channel-shaped limiting pad such that the top of the column base anchor passes through the channel-shaped hardwood, a column base plate of the building steel column being disposed within the channel-shaped hardwood, such that the bottom and sides of the column base plate are enclosed by the channel-shaped hardwood, and the top of the column base anchor passes through the column base plate, and a nut fitting at the top of the column base anchor to tightly connect the column base plate, the channel-shaped hardwood, the channel-shaped limiting pad, and the foundation.

[0008] Preferably, the foundation includes only a lower column pier, the lower end of the building steel column extends outdoors, the part extending outdoors is wrapped with thermal insulation material, and the column base plate is set on the bottom end of the part extending outdoors. The column base anchor is pre-embedded in the lower column pier, and the grooved limiting pad is set on the top of the lower column pier. Hardwood is provided around the part of the lower column pier that is exposed to the ground and around the grooved limiting pad.

[0009] Preferably, the foundation includes a lower column pier and a lower steel column disposed on the lower column pier, and the grooved limiting pad is disposed on the top of the lower steel column and the grooved limiting pad is integral with the lower steel column.

[0010] Preferably, a heat-insulating gasket is provided between the nut and the column base plate.

[0011] Preferably, the thickness of the grooved hardwood is 50-100 mm.

[0012] Preferably, the grooved hardwood has a thermal conductivity of 0.18 W / (m·K) and an elastic modulus of 9500 N / mm². 2 .

[0013] Preferably, the thickness of the groove-shaped limiting pad is 20-40mm.

[0014] Preferably, the side plate height of the groove-shaped limiting pad is 130-150mm.

[0015] Preferably, the thickness of the column base plate is 30-50mm.

[0016] Preferably, the side length of the column base plate is 430-450mm.

[0017] Compared with existing technologies, the steel column base insulation system for elevated buildings in frigid regions of this utility model has one or more of the following beneficial technical effects: 1. This utility model eliminates the shear key setting of the column base and uses a grooved limiting pad and grooved hardwood as the heat insulation measures for the column base, which can ensure the reliable force transmission requirements of the structure.

[0018] 2. This utility model eliminates the shear key setting for the column base and uses a grooved limiting pad and grooved hardwood as the heat insulation measures for the column base, which greatly improves the heat insulation effect of the column base, reduces energy consumption, avoids large temperature fluctuations in local areas, and prevents condensation and icing. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of an existing type of elevated building in frigid regions.

[0020] Figure 2 This is a cross-sectional view of an existing elevated building in a frigid region, representing another type of elevated structure.

[0021] Figure 3 This is a sectional view of the column base of an elevated building in a frigid region that utilizes the steel column base insulation system of this utility model.

[0022] Figure 4 This is a cross-sectional view of the column base of an elevated building in a frigid region, which employs another type of elevated structure using the steel column base insulation system of this utility model. Detailed Implementation

[0023] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention can have other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links. Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0024] Figure 3 A sectional view of the column base of an elevated building in a frigid region, employing the steel column base insulation system of this invention, is shown. (See below for reference.) Figure 3 This invention describes in detail the steel column base insulation system for elevated buildings in frigid regions. The system includes an outdoor column base 2 inserted into the ground 1, with column base anchors 7 pre-embedded in the column base 2. A grooved limiting pad 8 is provided on the top of the column base 2, allowing the top of the column base anchor 7 to pass through the grooved limiting pad 8.

[0025] The lower column pier 2 is used to provide support for the building's steel columns 3, and it can be made of cast concrete. Preferably, the lower column pier 2 is square with a side length of 690-710mm, and more preferably, the side length of the lower column pier 2 is 700mm.

[0026] The column base anchor bolts 7 are used to connect the building steel column 3 and the lower pier column 2, and can be pre-embedded in the lower pier column 2 during the pouring of the lower pier column 2. Preferably, four column base anchor bolts 7 are pre-embedded in each lower pier column 2.

[0027] The grooved limiting pad 8 is mainly used to accommodate grooved hardwood 9, and it can be provided with through holes for the column base anchor bolts 7 to pass through. Preferably, the thickness of the grooved limiting pad 8 is 20-40mm, more preferably 30mm. Furthermore, the side plate height of the grooved limiting pad 8 is 130-150mm, more preferably 140mm. This allows for better accommodation of the grooved hardwood 9. Simultaneously, the shape and size of the grooved limiting pad 8 are the same as those of the lower column base 2, allowing it to be positioned precisely on the top of the lower column base 2.

[0028] The grooved limiting pad 8 is provided with a grooved hardwood 9, and the top of the column foot anchor 7 passes through the grooved hardwood 9.

[0029] The grooved hardwood 9 is used to accommodate the column base plate 10 of the building steel column 3. The grooved hardwood 9 can be made of oak, mahogany, birch, red oak, hard maple, alder, beech, boxwood, etc., which have high density, are hard, and have strong load-bearing capacity. The grooved hardwood 9 includes two parts: a bottom part and a side part. The bottom part is located below the column base plate 11. After the building steel column 10 is installed, the side part is filled in, and the bottom part and the side part together form a groove shape.

[0030] The grooved hardwood 9 may also be provided with through holes through which the column base anchor bolts 7 pass.

[0031] Preferably, the thickness of the grooved hardwood 9 is 50-100 mm, more preferably 100 mm. The grooved hardwood 9 has a low thermal conductivity, for example, 0.18 W / (m·K), and a high modulus of elasticity, for example, 9500 N / mm². 2 .

[0032] The grooved hardwood 9 has the same shape and size as the bottom inner side of the grooved limiting pad 8, so that the grooved hardwood 9 can be tightly filled in the gap between the bottom and side surfaces of the column base plate 10 of the building steel column 3 and the grooved limiting pad 8.

[0033] The lower end of the building's steel column 3 extends outside the building, and the portion extending outside the building is wrapped with insulation material 4. The bottom end of the portion extending outside the building is provided with a column base plate 10. The column base plate 10 is set in the grooved hardwood 9, such that the bottom and sides of the column base plate 10 are wrapped by the grooved hardwood 9, and the top of the column base anchor 7 passes through the column base plate 10.

[0034] In this utility model, the shape and size of the column base plate 10 are the same as the shape and size of the bottom inner side of the grooved hardwood 9, so that the bottom and side of the column base plate 10 are exactly wrapped by the grooved hardwood 9. The grooved hardwood 9 has a very low heat transfer coefficient. Therefore, the grooved hardwood 9 can isolate the heat transfer between the column base plate 10 of the building steel column 3 and the lower column pier 2, thereby achieving the purpose of heat insulation of the steel column base.

[0035] Preferably, the thickness of the column base plate 10 is 30-50mm, more preferably 40mm. Furthermore, the side length of the column base plate 10 is 430-450mm, preferably 440mm.

[0036] Furthermore, preferably, the side length of the building steel column 3 is 400mm and the thickness of the steel plate is 30mm.

[0037] The top of the column base anchor bolt 7 is fitted with a nut 11 to tightly connect the column base plate 10 to the lower column pier 2.

[0038] By tightening the nut 11 and the column base anchor 7, the column base plate 10, the grooved hardwood 9, the grooved limiting pad 8 and the lower column pier 2 can be tightly connected together.

[0039] Preferably, a heat insulation gasket 13 is provided between the nut 11 and the column base plate 10 to further improve the heat insulation effect.

[0040] Hardwood 12 is provided around the part of the lower column pier 2 that protrudes into the ground 1 and around the groove-shaped limiting pad 8.

[0041] The hardwood 12 on the outside of the column can also be made of oak, mahogany, birch, red oak, hard maple, alder, beech, boxwood, etc., which have high density and are hard and have strong load-bearing capacity. By setting the hardwood 12 on the outside of the column, the heat transfer between the lower column base 2 and the grooved limiting pad 8 and the outdoor air can be reduced, thereby improving the heat insulation effect and increasing the pressurization capacity.

[0042] To demonstrate the effectiveness of the steel column base insulation system for elevated buildings in frigid regions, the inventors conducted comparative experiments and calculations. The three scenarios in the comparative experiments and calculations (no insulation system, insulation system with a grooved hardwood thickness of 50mm, and insulation system with a grooved hardwood thickness of 100mm) were conducted under the same indoor and outdoor environments and with the same cross-sectional dimensions. The main focus was on comparing differences in heat transfer, as well as the force transmission and deformation of the column base.

[0043] The specific comparative experiments and calculation conditions are as follows: 1. The bending moment at the column base is M = 0 kN·m, the axial force is N = 1500 kN, and the shear force is V = 100 kN.

[0044] 2. The building steel column 3 is made of I-beams. The dimensions of the building steel column 3 and the column base plate 10 are shown in Table 1.

[0045] 3. The dimensions of the concrete lower column pier 2 are 700mm × 700mm.

[0046] 4. The steel plate of the groove-shaped limiting pad 8 is 30mm thick, and its size is the same as that of the concrete lower column pier (700mm×700mm). The height of the side steel plate is 140mm.

[0047] 5. The bottom and side thickness of the grooved hardwood 9 are both 100mm, and the side height is 140mm, which is 40mm higher than the bottom part.

[0048] 6. The outdoor temperature is -40℃, the indoor temperature is 20℃, the temperature of Earth 1 (which is permafrost) is -15℃, the temperature difference between indoors and outdoors is 60℃, and the temperature difference between indoors and permafrost is 35℃.

[0049] Wrapping the lower column base 2 and the grooved limiting pad 8 with hard wood 12 can prevent the grooved limiting pad 8 from directly contacting the atmospheric temperature. However, considering that the ground of the elevated building has no insulation, the beneficial effect of the hard wood 12 is not considered in the calculation of this utility model. The temperature of the grooved limiting pad 8 is the same as the outdoor temperature of -40℃, and the heat is transferred to the indoor temperature of 20℃ through the grooved hard wood 9, the column base plate 10 and the building steel column 3.

[0050] Table 1. Calculation results of the thermal insulation effect of one type of overhead structure. The results of the comparative experiment and insulation effect calculation are shown in Table 1. Table 1 shows that the heat transfer of the insulation system without this invention is 46.05 W, while the heat transfer of the insulation system with this invention and a hardwood thickness of 100 mm is 14.38 W. The heat transfer of the insulation system without this invention is approximately 3.2 times that of the insulation system with this invention and a hardwood thickness of 100 mm. This demonstrates that the insulation system of this invention can effectively improve the insulation effect of the column base, reduce energy consumption, avoid large local temperature fluctuations, and prevent condensation and icing.

[0051] Figure 4 A cross-sectional view of the column base of an elevated building in a frigid region, employing another type of elevated structure using the steel column base insulation system of this invention, is shown below. (Refer to the following...) Figure 4 This invention describes in detail the steel column base insulation system for elevated buildings in frigid regions. The system includes a lower column base 2 located outdoors and inserted into the ground 1. A lower steel column 6 is mounted on the lower column base 2. Furthermore, a grooved limiting plate 8 is provided at the top of the lower steel column 6, and column base anchor bolts 7 are installed within the grooved limiting plate 8.

[0052] In this invention, the lower steel column 6 and the grooved limiting pad 8 can be integrated. Furthermore, the bottom end of the lower steel column 6 can be pre-embedded in the lower column pier 2 during the casting of the lower column pier 2.

[0053] The column base anchor bolts 7 are used to connect the building steel column 3 and the lower steel column 6. Preferably, four column base anchor bolts 7 are provided in each of the groove-shaped limiting pads 8.

[0054] The grooved limiting pad 8 is mainly used to accommodate the grooved hardwood 9. Preferably, the thickness of the grooved limiting pad 8 is 20-40mm, more preferably 30mm. Furthermore, the side plate height of the grooved limiting pad 8 is 130-150mm, more preferably 140mm. This allows for better accommodation of the grooved hardwood 9.

[0055] The grooved limiting pad 8 is provided with grooved hardwood 9, and the top of the column foot anchor 7 passes through the grooved hardwood 9.

[0056] The grooved hardwood 9 is used to accommodate the column base plate 10 of the building steel column 3. The grooved hardwood 9 can be made of oak, mahogany, birch, red oak, hard maple, alder, beech, boxwood, etc., which have high density, are hard and solid, and have strong load-bearing capacity.

[0057] The grooved hardwood 9 may also be provided with through holes through which the column base anchor bolts 7 pass.

[0058] Preferably, the thickness of the grooved hardwood 9 is 50-100 mm, more preferably 100 mm. The grooved hardwood 9 has a low thermal conductivity, for example, 0.18 W / (m·K), and a high modulus of elasticity, for example, 9500 N / mm². 2 .

[0059] The grooved hardwood 9 has the same shape and size as the bottom inner side of the grooved limiting pad 8, so that the grooved hardwood 9 can be placed exactly in the grooved limiting pad 8.

[0060] The building's steel column 3 is located inside the building and only a small portion extends outdoors, for example, only 0.3m outdoors, and the portion extending outdoors is wrapped with insulation material 4. The column base plate 10 at the bottom end of the building steel column 3 is set in the grooved hardwood 9, such that the bottom and sides of the column base plate 10 are wrapped with the grooved hardwood 9, and the top of the column base anchor 7 passes through the column base plate 10.

[0061] In this utility model, the shape and size of the column base plate 10 are the same as the shape and size of the bottom inner side of the grooved hardwood 9, so that the bottom and side of the column base plate 10 are exactly wrapped by the grooved hardwood 9. The grooved hardwood 9 has a very low heat transfer coefficient. Therefore, the grooved hardwood 9 can isolate the heat transfer between the column base plate 10 of the building steel column 3 and the grooved limiting pad 8, thereby achieving the purpose of heat insulation of the steel column base.

[0062] Preferably, the thickness of the column base plate 10 is 30-50mm, more preferably 40mm. Furthermore, the side length of the column base plate 10 is 430-450mm, preferably 440mm.

[0063] Furthermore, preferably, the side length of the building steel column 3 is 400mm and the thickness of the steel plate is 30mm.

[0064] The top of the column base anchor bolt 7 is fitted with a nut 11 to tightly connect the column base plate 10 and the grooved limiting pad 8 together.

[0065] By tightening the nut 11 and the column base anchor 7, the column base plate 10, the grooved hardwood 9, and the grooved limiting pad 8 can be tightly connected together.

[0066] Preferably, a heat insulation gasket 13 is provided between the nut 11 and the column base plate 10 to further improve the heat insulation effect.

[0067] To demonstrate the effectiveness of the steel column base insulation system for elevated buildings in frigid regions, the inventors conducted comparative experiments and calculations. The three scenarios in the comparative experiments and calculations (no insulation system, insulation system with a grooved hardwood thickness of 50mm, and insulation system with a grooved hardwood thickness of 100mm) were conducted under the same indoor and outdoor environments and with the same cross-sectional dimensions. The main focus was on comparing differences in heat transfer, as well as the force transmission and deformation of the column base.

[0068] The specific comparative experiments and calculation conditions are as follows: 1. The bending moment at the column base is M = 0 kN·m, the axial force is N = 1500 kN, and the shear force is V = 100 kN.

[0069] 2. The building steel column 3 is made of I-beams. The dimensions of the building steel column 3 and the column base plate 10 are shown in Table 1.

[0070] 3. The dimensions of the concrete lower column pier 2 are 700mm × 700mm.

[0071] 4. The steel plate of the groove-shaped limiting pad 8 is 30mm thick, and its size is the same as that of the concrete lower column pier (700mm×700mm). The height of the side steel plate is 140mm.

[0072] 5. The bottom and side thickness of the grooved hardwood 9 are both 100mm, and the side height is 140mm, which is 40mm higher than the bottom part.

[0073] 6. The outdoor temperature is -40℃, the indoor temperature is 20℃, the temperature of Earth 1 (which is permafrost) is -15℃, the temperature difference between indoors and outdoors is 60℃, and the temperature difference between indoors and permafrost is 35℃.

[0074] Table 2. Calculation results of the thermal insulation effect of another type of overhead structure. The results of the comparative experiment and the calculation of the insulation effect are shown in Table 2. Table 2 shows that the heat transfer of the insulation system without this invention is 301.60 W, while the heat transfer of the insulation system with this invention and a hardwood thickness of 100 mm is 19.55 W. The heat transfer of the insulation system without this invention is approximately 15.4 times that with the insulation system with this invention and a hardwood thickness of 100 mm. This demonstrates that the insulation system of this invention can effectively improve the insulation effect of the column base, reduce energy consumption, avoid large temperature fluctuations in local areas, and prevent condensation and icing.

[0075] In addition, calculations were performed on the column base bearing capacity and column base shear capacity.

[0076] Table 3 Calculation results of column base bearing capacity The calculation results of the column base bearing capacity are shown in Table 3. As can be seen from Table 3, under a vertical force of 1500kN, the compression of 100mm thick hardwood is only 0.082mm, which has a negligible impact on the overall structure.

[0077] Table 4 Calculation results of column base shear capacity The calculation results of the shear resistance of the column base are shown in Table 4. As can be seen from Table 4, the maximum cumulative deformation of the channel-shaped hardwood under a shear force of 100kN is 0.52mm, which can meet the stiffness and bearing capacity requirements of the column base.

[0078] Therefore, this utility model eliminates the shear key setting of the column base and uses a grooved limiting pad and grooved hardwood as the heat insulation measures for the column base, which can ensure the reliable force transmission requirements of the structure.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit the scope of protection of this utility model. Those skilled in the art can modify or make equivalent substitutions to the technical solution of this utility model based on the concept of this utility model, without departing from the essence and scope of the technical solution of this utility model.

Claims

1. A thermal insulation system for steel column bases of elevated buildings in frigid regions, comprising an outdoor foundation and building steel columns (3) inserted into the ground (1), characterized in that, The foundation is provided with column anchor bolts (7) and the top of the foundation is provided with a grooved limiting pad (8) so that the top of the column anchor bolt (7) passes through the grooved limiting pad (8). The grooved limiting pad (8) is provided with grooved hardwood (9) so that the top of the column anchor bolt (7) passes through the grooved hardwood (9). The column base plate (10) of the building steel column (3) is provided in the grooved hardwood (9) so that the bottom and sides of the column base plate (10) are wrapped by the grooved hardwood (9) and the top of the column anchor bolt (7) passes through the column base plate (10). The top of the column anchor bolt (7) is fitted with a nut (11) to tightly connect the column base plate (10), the grooved hardwood (9), the grooved limiting pad (8) and the foundation together.

2. The steel column base thermal insulation system for elevated buildings in frigid regions according to claim 1, characterized in that, The foundation includes only the lower column pier (2), the lower end of the building steel column (3) extends outdoors, the part extending outdoors is wrapped with thermal insulation material (4), and the column base plate (10) is set on the bottom end of the part extending outdoors. The column base anchor bolt (7) is embedded in the lower column pier (2), and the grooved limiting pad (8) is set on the top of the lower column pier (2). The lower column pier (2) is surrounded by the part of the ground (1) and the grooved limiting pad (8), and the column hardwood (12) is set around it.

3. The steel column base thermal insulation system for elevated buildings in frigid regions according to claim 1, characterized in that, The foundation includes a lower column base (2) and a lower steel column (6) set on the lower column base (2). The grooved limiting pad (8) is set on the top of the lower steel column (6) and the grooved limiting pad (8) is integral with the lower steel column (6).

4. The steel column base thermal insulation system for elevated buildings in frigid regions according to any one of claims 1-3, characterized in that, A heat insulation gasket (13) is provided between the nut (11) and the column base plate (10).

5. The steel column base thermal insulation system for elevated buildings in frigid regions according to claim 4, characterized in that, The thickness of the grooved hardwood (9) is 50-100 mm.

6. The steel column base thermal insulation system for elevated buildings in frigid regions according to claim 5, characterized in that, The grooved hardwood (9) has a thermal conductivity of 0.18 W / (m·K) and an elastic modulus of 9500 N / mm². 2 .

7. The steel column base thermal insulation system for elevated buildings in frigid regions according to claim 4, characterized in that, The thickness of the groove-shaped limiting pad (8) is 20-40mm.

8. The steel column base thermal insulation system for elevated buildings in frigid regions according to claim 7, characterized in that, The side plate height of the groove-shaped limiting pad (8) is 130-150mm.

9. The steel column base thermal insulation system for elevated buildings in frigid regions according to claim 4, characterized in that, The thickness of the column base plate (10) is 30-50mm.

10. The steel column base thermal insulation system for elevated buildings in frigid regions according to claim 9, characterized in that, The side length of the column base plate (10) is 430-450mm.

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