Inclined column virtual hinge structure system

Abstract

The invention relates to the technical field of building structures, in particular to a batter post virtual hinge structure system. According to the system, virtual hinges are formed by intersecting the inclined columns with different tendencies on the extension lines of the inclined columns, so that a statically indeterminate or statically indeterminate lateral force resisting system is formed, vertical loads can be borne, and meanwhile horizontal loads can also be borne. A vertical load and a horizontal load are converted into inclined pull pressure by adopting an inclined column virtual hinge system, a structural system in which an inclined column only bears axial force is formed, and the defects that columns of a traditional frame structure need to be vertically arranged in a through mode and bear the horizontal load effect through bending resistance and shearing resistance rigidity of the columns are overcome. Therefore, the problems of inflexible column arrangement and large cross section are solved. The batter post can adopt a smaller cross section, is flexible in arrangement, and can meet more diversified building modeling and use requirements of a multi-layer structure.

Description

Technical Field

[0001] The invention relates to the technical field of building structures, in particular to an inclined column virtual hinge structure system. Background Art

[0002] Frame structure is a common structural form of multi-story buildings. The bottom ends of the frame columns used in the frame structure are rigidly connected to the foundation, and the beam-column joints also use rigid joints. Because the frame columns need to bear the bending moment and axial force transmitted by the frame beams, they usually have a large cross-section; and the frame columns are usually arranged vertically and need to be continuously set from the foundation to the roof, which brings certain restrictions to the building shape and use. Summary of the invention

[0003] The purpose of the present invention is to: with respect to the multi-story structure buildings in the prior art, the frame columns and beams are rigidly connected, so that the frame columns need to bear the bending moment and axial force transmitted by the frame beams, which has the problem of large cross-section, and the frame columns are usually arranged vertically and need to be continuously set from the foundation to the roof, which has the problem of bringing certain restrictions on the building shape and use. In view of the above problems, a diagonal column virtual hinge structure system is provided.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] An inclined column virtual hinge structural system, comprising at least one floor, each floor comprising a floor surface and at least two inclined columns on each side of the perimeter surface of the floor;

[0006] The floor comprises continuous beams enclosing the periphery, a plurality of secondary beams arranged between the continuous beams, and floor slabs laid on the secondary beams and the continuous beams, wherein the secondary beams are connected to the corresponding continuous beams rigidly or through hinged nodes;

[0007] The upper end of the inclined column is hinged to the corresponding continuous beam by a hinge node, and the lower end of the inclined column is hinged to the continuous beam of the ground or the lower floor by a hinge node. The hinge axes of the upper and lower ends of the inclined column are axially perpendicular to the corresponding surface of the floor where the inclined column is located. Each surface of the floor has at least one pair of inclined columns with opposite inclination directions, and the inclined columns on each surface of the floor form virtual hinges.

[0008] In this scheme, the diagonal columns with different inclinations on each side of the floor are used to form virtual hinges at the intersection of their extension lines, thereby forming a statically determinate or statically indeterminate lateral force resistance system. By adopting the diagonal column virtual hinge system, the vertical load and horizontal load are converted into diagonal tensile pressure, forming a structural system in which the diagonal column only bears axial force, overcoming the problem that the columns of the traditional frame structure must be arranged vertically and through and use the bending and shear stiffness of the columns to bear the horizontal load, resulting in inflexible column arrangement and large cross-section. The diagonal column virtual hinge structural system of this scheme can control the cross-sectional size of the diagonal column and can be flexibly arranged, which can meet the more diverse architectural shapes and usage requirements of multi-story structures.

[0009] As a preferred solution of the present invention, at least three inclined columns are arranged on each side of the floor, which can improve the structural safety redundancy and evenly distribute the internal force of the structure.

[0010] As a preferred solution of the present invention, the angle between the inclined column and the horizontal plane is 45° to 60°, which can better meet the architectural shape and efficiently transmit the vertical force of the floor and the horizontal force generated by the horizontal earthquake. If the angle between the inclined column and the floor is small, the vertical force will cause the inclined column to generate huge axial force.

[0011] If the angle between the inclined column and the floor is close to 90 degrees, the horizontal force generated by the horizontal earthquake will also cause the inclined column to produce huge axial force, which will increase the column section and waste steel.

[0012] As a preferred solution of the present invention, at least some or all of the inclined columns of adjacent floors have intersections. When the inclined columns of the upper and lower floors intersect, the axial force of the upper inclined columns can be directly transmitted to the lower inclined columns through the intersection. The force transmission is direct, avoiding the force transmission mode of "upper inclined columns - beams - lower inclined columns", and avoiding large shear stress on the beams.

[0013] As a preferred solution of the present invention, the inclined column is a round tube or a square tube, so that the section moments of inertia of the cross section in the strong axis and weak axis directions are close, saving material consumption.

[0014] And / or, the continuous beam is an H-shaped or rectangular tube, and the cross section of the continuous beam is connected to the inclined column in the strong axis direction.

[0015] As a preferred solution of the present invention, the floor also includes a vertical swing column, the upper end of the swing column is hinged to the corresponding continuous beam, and the lower end is hinged to the corresponding continuous beam of the lower floor or the ground. The swing column only bears vertical forces. When the distance between the inclined columns is large, adding a swing column can reduce the span of the continuous beam and the cross-section of the continuous beam, thereby achieving the effect of lightness of the building and saving steel.

[0016] As a preferred solution of the present invention, bolts are provided on the continuous beam and the secondary beam, so that the floor slab and the beam are subjected to force in coordination, and the force bearing capacity is stronger.

[0017] As a preferred solution of the present invention, the continuous beam, secondary beam and inclined column are made of metal material.

[0018] As a preferred embodiment of the present invention, the continuous beam, secondary beam and inclined column are made of steel or aluminum alloy.

[0019] As a preferred solution of the present invention, the continuous beams surrounding the periphery and a plurality of secondary beams arranged between the continuous beams included in the floor are replaced with grid or truss structures.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] The oblique column virtual hinge structural system of the present invention can not only bear vertical loads, but also use the oblique columns of different inclinations on each side of the floor to form virtual hinges at the intersection of their extension lines, thereby forming a statically determinate or statically indeterminate lateral force resistance system. By adopting the oblique column virtual hinge system, the vertical load and horizontal load are converted into oblique tensile pressure, forming a structural system in which the oblique column only bears axial force, overcoming the problem that the columns of the traditional frame structure must be arranged vertically and through and use the bending and shear stiffness of the columns to bear the horizontal load, resulting in inflexible column arrangement and large cross-section. It can control the cross-sectional size of the oblique column and can be flexibly arranged, which can meet the more diverse architectural shapes and usage requirements of multi-story structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the oblique column virtual hinge structural system of the present invention;

[0023] Figure 2 It is a schematic elevation diagram of the oblique column virtual hinge structural system of the present invention (single-story);

[0024] Figure 3 It is a plan view of the oblique column virtual hinge structure system of the present invention (single-story);

[0025] Figure 4 It is a schematic diagram of the principle of forming a virtual hinge by the virtual hinge structural system of an inclined column of the present invention;

[0026] Figure 5 It is a structural diagram of the hinged node;

[0027] Figure 6 yes Figure 5 Sectional view at AA in the middle;

[0028] Figure 7 It is a structural schematic diagram of the oblique column virtual hinge structural system of the present invention (two floors, the oblique columns of the upper and lower floors intersect);

[0029] Figure 8 It is a schematic elevation view of the oblique column virtual hinge structure system of the present invention (two floors, the oblique columns of the upper and lower floors intersect);

[0030] Fig. 9 It is a structural schematic diagram of the oblique column virtual hinge structure system of the present invention (two floors, some oblique columns of the upper and lower floors do not intersect);

[0031] Fig.10 It is a schematic elevation view of the oblique column virtual hinge structure system of the present invention (two floors, some oblique columns of the upper and lower floors do not intersect).

[0032] Icons: 1. Secondary beam; 2. Continuous beam; 3. First-floor inclined column; 4. Second-floor inclined column; 5. Concrete slab; 6. Beam-column joint; 7. Swing column; 8. Column end capping plate; 9. Column end ear plate; 10. Beam end ear plate; 11. Pin shaft; 12. Ear plate stiffening rib; 13. Beam stiffening rib; 14. Virtual hinge. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0034] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0036] In addition, the expressions “first”, “second”, “third”, etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0037] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0038] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0039] Example 1

[0040] This embodiment provides a virtual hinge structure system of inclined columns. Figure 1-10 , including at least one floor, each floor including a floor and at least two inclined columns on each of the four sides of the floor, that is, there are four sides around the floor, and each side of each floor is provided with at least two inclined columns;

[0041] like Figure 3 As shown, the floor comprises continuous beams 2 surrounding the continuous beams 2, a plurality of secondary beams 1 arranged between the continuous beams 2, and floor slabs laid on the secondary beams 1 and the continuous beams 2, and the secondary beams 1 and the corresponding continuous beams 2 are connected rigidly or through hinged nodes; Figure 3 It can be seen that a number of secondary beams 1 are arranged between the continuous beams 2 on the left and right sides. The number of secondary beams 1 is selected according to actual conditions. The two ends of the secondary beams 1 are respectively connected to the continuous beams 2 on the upper and lower sides. The connection method can be rigid connection or connection through hinged nodes.

[0042] In this solution, in some special buildings, the floor does not necessarily have four sides, so at least two inclined columns are set on each peripheral side of the floor; correspondingly, the floor includes continuous beams 2 enclosed at the periphery, a number of secondary beams 1 set between the continuous beams 2, and floor slabs laid on the secondary beams 1 and continuous beams 2. If the floor has five sides, each of the five sides includes at least two inclined columns, and all five sides have continuous beams 2.

[0043] As an optional solution, the continuous beams surrounding the periphery and a plurality of secondary beams arranged between the continuous beams included in the floor are replaced with a grid or truss structure.

[0044] like Figure 1 , Figure 2 and Figure 4As shown, the upper end of the inclined column is hinged to the corresponding continuous beam 2 by adopting a hinge node, and the lower end of the inclined column is hinged to the continuous beam 2 of the ground or the lower floor by adopting a hinge node. When there is only one floor, the lower end of the inclined column of this floor is hinged to the ground foundation by adopting a hinge node. When there are two or more floors, the lower end of the inclined column of the bottom floor is hinged to the ground foundation by adopting a hinge node, and the lower end of the inclined column of the second floor and above is hinged to the continuous beam 2 of the lower floor by adopting a hinge node; the hinge shaft 11 of the hinged upper and lower ends of the inclined column is axially perpendicular to the corresponding surface of the floor where the inclined column is located, so that the rotation of the inclined column and the corresponding continuous beam 2 can only be within the same corresponding plane, as shown in FIG. Figure 4 As shown, the connection hinges between the two inclined columns and the continuous beam 2 and the ground are at four points A, B, C and D. The rotation of the four points A, B, C and D is left and right, that is, Figure 4 The corresponding points A, B, C and D rotate in the plane.

[0045] In this embodiment, Figure 5 and Figure 6 As shown, the hinged node refers to the hinged part of the beam and the column, including the column end head plate 8, the column end ear plate 9, the beam end ear plate 10, the pin 11, the ear plate stiffening rib 12 and the beam stiffening rib 13. The column end head plate 8 is connected to the end of the inclined column. The column end ear plate 9 is welded to the outside of the column end head plate 8. The beam end ear plate 10 is welded to the bottom of the continuous beam 2. There are two beam end ear plates 10, which are arranged oppositely, so that the column end ear plate 9 can extend between the two oppositely arranged beam end ear plates 10. The pin shaft 11 passes through the beam end ear plate 10, the column end ear plate 9 and the beam end ear plate 10 in sequence to form a hinge. The beam end ear plate 10 and the column end ear plate 9 can rotate relative to each other around the pin shaft 11; and the outer side of the beam end ear plate 10 is also provided with ear plate stiffening ribs 12 along the length direction, which can strengthen the beam end ear plate 10. At the position where the hinge node is set, a number of vertical beam stiffening ribs 13 are also provided on both sides of the continuous beam 2 to strengthen the position of the hinge node connection to ensure the connection strength.

[0046] Each side of the floor has at least one pair of inclined columns with opposite inclination directions, such as Figure 4 As shown, one of the inclined columns of the surface is inclined to the left and the other is inclined to the right, and the inclination directions are opposite. When there are three inclined columns on the surface, the inclination direction of the remaining inclined columns is selected according to actual needs. The inclined columns on each surface of the floor form a virtual hinge 14, such as Figure 4As shown, the continuous beam 2 originally has three degrees of freedom in the plane. If it is connected to the ground foundation by a hinge node using two non-parallel first and second inclined columns with opposite inclination angles, the system still has one degree of freedom. Now its motion characteristics are analyzed: due to the constraint of the inclined column, the small displacement of point A should be perpendicular to the first inclined column, and the small displacement of point C should be perpendicular to the second inclined column. O represents the intersection of the axes of the two inclined columns. Obviously, the continuous beam 2 can undergo a small rotation with O as the center, and point O is called the instantaneous rotation center. At this time, the instantaneous motion of the continuous beam 2 is exactly the same as the motion of the continuous beam 2 when it is connected to the foundation at point O by a hinge. Therefore, from the perspective of instantaneous small motion, the constraint of the two inclined columns is equivalent to the constraint of a hinge at the intersection of the inclined columns, and this hinge can be called a virtual hinge 14. Moreover, during the movement of the system, the position of the virtual hinge 14 corresponding to the two inclined columns also changes, so after a small displacement of the continuous beam 2, it is constrained and cannot continue to deform, reaching a stable stress state. This allows the inclined columns to bear vertical loads while also utilizing the different inclinations of the inclined columns on each side of the floor to intersect their extension lines to form virtual hinges 14, thereby forming a statically determinate or statically indeterminate lateral force resistance system. By adopting the inclined column virtual hinge system, vertical loads and horizontal loads are converted into inclined tensile pressures, forming a structural system in which the inclined columns only bear axial forces. This overcomes the problem that the columns of traditional frame structures must be arranged vertically and through-columns use the bending and shear stiffness of the columns to bear horizontal loads, resulting in inflexible column arrangement and large cross-sections. The inclined column virtual hinge structural system of this scheme can control the cross-sectional size of the inclined columns and can be flexibly arranged, which can meet the more diverse architectural shapes and usage requirements of multi-story structures.

[0047] In this embodiment, Figure 1 and Figure 2 As shown, the same plane of each floor may not intersect, and generally more than three inclined columns are arranged in each plane, so that the inclined column virtual hinge system can be arranged more flexibly. The inclination angle, number, etc. in each plane do not have to be consistent. On different floors, the inclination angle, direction and number may be different, and it is only necessary to form a virtual hinge 14 on each surface of the floor. On adjacent floors, the upper and lower inclined columns do not have to intersect at the same intersection. The inclined columns do not have to be arranged at the corners of the house.

[0048] In this solution, the inclined column only bears axial force, and the cross section of the component is preferably a round tube or a square tube, so that the cross-sectional inertia moments of the cross section in the strong axis and weak axis directions are close, saving material consumption. The continuous beam 2 described in this solution is preferably an H-shaped or rectangular tube component cross section, so that the cross section is connected to the inclined column in the strong axis direction. In this embodiment, the floor slab is subjected to force in coordination with the beam by setting bolts on the continuous beam 2 and the secondary beam 1.

[0049] In some embodiments of the present invention, the inclined columns, the continuous beams 2 and the secondary beams 1 may be made of steel, aluminum alloy or other metal materials.

[0050] In some embodiments of the present invention, after the inclined columns of the floors form a statically determinate or statically indeterminate system, such as Fig. 9 As shown, a vertically hinged swing column 7 can be added, the upper end of the swing column 7 is hinged to the corresponding continuous beam 2 to form a beam-column node 6, and the lower end is hinged to the corresponding continuous beam 2 of the lower floor or the ground. Among them, the swing column only bears vertical action. When the distance between the inclined columns is large, adding a swing column can reduce the span of the continuous beam and the cross-section of the continuous beam, meet the effect of lightness of the building, and save steel.

[0051] As a preferred implementation, the angle between the inclined column and the horizontal plane is 45° to 60°, which can better meet the architectural shape and efficiently transmit the vertical force of the floor and the horizontal force generated by the horizontal earthquake. If the angle between the inclined column and the floor is small, the vertical force will cause the inclined column to generate huge axial force.

[0052] As a better implementation method, the inclined columns of adjacent floors should intersect. When the inclined columns of the upper and lower floors intersect, the axial force of the upper inclined column can be directly transmitted to the lower inclined column through the intersection. The force transmission is direct, avoiding the force transmission mode of "upper inclined column-continuous beam-lower inclined column", and avoiding the large shear stress on the continuous beam. Figure 7 and Figure 8 As shown, the upper end of each inclined column of the current layer is connected to the same position of the continuous beam 2 as at least one inclined column of the upper layer, and the lower end of each inclined column of the current layer is connected to the same position of the continuous beam 2 as at least one inclined column of the lower layer. Figure 7-Figure 10 , at least some or all of the inclined columns of the adjacent floors have intersections, Figure 7 and Figure 8 In the above, all the inclined columns of the adjacent floors have intersection points; Fig. 9 and Fig.10 In the figure, the inclined columns in the middle part are staggered on the upper and lower layers without any intersection, while the inclined columns in the corners are intersecting on the upper and lower layers.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A virtual hinge structure system of an inclined column, characterized in that: The invention comprises at least one floor, each floor comprising a floor surface and at least two inclined columns on each side of the perimeter surface of the floor; The floor comprises continuous beams (2) surrounding the periphery, a plurality of secondary beams (1) arranged between the continuous beams (2), and floor slabs laid on the secondary beams (1) and the continuous beams (2), wherein the secondary beams (1) and the corresponding continuous beams (2) are connected rigidly or via hinged nodes; The upper end of the inclined column is hinged to the corresponding continuous beam (2) by means of a hinged node, and the lower end of the inclined column is hinged to the continuous beam (2) on the ground or the lower floor by means of a hinged node. The hinge axes (11) of the hinges at the upper and lower ends of the inclined column are axially perpendicular to the corresponding surface of the floor where the inclined column is located. Each surface of the floor has at least one pair of inclined columns with opposite inclination directions, and the inclined columns on each surface of the floor form virtual hinges (14).

2. The oblique column virtual hinge structure system according to claim 1 is characterized in that: At least three inclined columns are arranged on each side of the floor.

3. The oblique column virtual hinge structure system according to claim 1 is characterized in that: The angle between the inclined column and the horizontal plane is 45° to 60°.

4. The oblique column virtual hinge structure system according to claim 1 is characterized in that: At least some or all of the inclined columns of adjacent floors have intersections.

5. The oblique column virtual hinge structure system according to claim 1 is characterized in that: The inclined column is a round tube or a square tube; and / or, The continuous beam (2) is an H-shaped or rectangular tube, and the cross section of the continuous beam (2) is connected to the inclined column in the strong axis direction.

6. The oblique column virtual hinge structure system according to claim 1 is characterized in that: The floor also includes a vertical sway column (7), the upper end of the sway column (7) is hinged to the corresponding continuous beam (2), and the lower end is hinged to the corresponding continuous beam (2) of the lower floor or the ground.

7. The oblique column virtual hinge structural system according to claim 1 is characterized in that: The continuous beam (2) and the secondary beam (1) are provided with bolts.

8. The oblique column virtual hinge structural system according to any one of claims 1 to 7, characterized in that: The continuous beam (2), the secondary beam (1) and the inclined column are made of metal materials.

9. The oblique column virtual hinge structural system according to claim 8, characterized in that: The continuous beam (2), the secondary beam (1) and the inclined column are made of steel or aluminum alloy.

10. The oblique column virtual hinge structural system according to any one of claims 1 to 7, characterized in that: The continuous beams (2) enclosing the periphery and a plurality of secondary beams (1) arranged between the continuous beams (2) included in the floor are replaced with grid or truss structures.

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