CN112431349A - Corrugated angle steel - Google Patents
Corrugated angle steel Download PDFInfo
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- CN112431349A CN112431349A CN201910788278.2A CN201910788278A CN112431349A CN 112431349 A CN112431349 A CN 112431349A CN 201910788278 A CN201910788278 A CN 201910788278A CN 112431349 A CN112431349 A CN 112431349A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 211
- 239000010959 steel Substances 0.000 title claims abstract description 211
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 229910000746 Structural steel Inorganic materials 0.000 claims abstract description 41
- 230000007704 transition Effects 0.000 claims description 12
- 230000000737 periodic effect Effects 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 4
- 238000007373 indentation Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
- E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention provides a corrugated angle iron, including: the first steel plate limb is distributed with at least one first corrugated part along the width direction; the second steel plate limb is distributed with at least one second corrugated part along the width direction, and the side edge of one length direction of the first steel plate limb is fixedly connected with the side edge of one length direction of the second steel plate limb; at least one end sealing plate arranged at the end part of the first steel plate limb; and one side edge of the end sealing plate is connected to the first steel plate limb, and the other side edge of the end sealing plate is connected to the second steel plate limb. The invention solves the technical problem of poor stress performance of the stress member in the assembly type steel structure building system in the prior art.
Description
Technical Field
The invention relates to the technical field of building components, in particular to corrugated angle steel.
Background
The building produced by making the room units or components to the specifications of the building components of a uniform standard and then transporting the room units or components to the construction site and assembling them in place is called a fabricated steel structural building system. The assembled steel structure building system has the characteristics of light building weight, energy conservation, environmental protection, high construction speed, high industrialization degree and the like, and can improve the labor productivity of building construction and the quality of building products.
The stressed member in the assembly type steel structure building system is an important component in the assembly type steel structure building system, and has great influence on the construction speed, the assembly type degree and the safety performance of the structure.
At present, steel structural section steels are generally adopted as stressed members in an assembly type steel structural building system, and mainly comprise hot-rolled I-shaped steels, hot-rolled H-shaped steels, welded H-shaped steels, hot-rolled square steel pipes, welded box beams and channel steels. However, in practice, the technical problem of poor stress performance exists.
Disclosure of Invention
The invention aims to provide a corrugated angle steel to solve the technical problem that a stressed member in an assembly type steel structure building system in the prior art is poor in stress performance.
The above object of the present invention can be achieved by the following technical solutions:
the invention provides a corrugated angle iron, comprising: the first steel plate limb is distributed with at least one first corrugated part along the width direction; the second steel plate limb is distributed with at least one second corrugated part along the width direction, and the side edge of one length direction of the first steel plate limb is fixedly connected with the side edge of one length direction of the second steel plate limb; at least one end sealing plate arranged at the end part of the first steel plate limb; and one side edge of the end sealing plate is connected to the first steel plate limb, and the other side edge of the end sealing plate is connected to the second steel plate limb.
In a preferred embodiment, the number of the first corrugated parts in the first steel plate limb is multiple, and the first corrugated parts are sequentially connected end to end; the number of the second corrugated parts of the second steel plate limb is multiple, and the second corrugated parts are sequentially connected end to end.
In a preferred embodiment, a cross section of the first corrugated portion perpendicular to the length direction of the first steel plate limb includes a top side, a first straight side, a bottom side and a second straight side which are connected end to end in sequence, and/or a cross section of the second corrugated portion perpendicular to the length direction of the second steel plate limb includes a top side, a first straight side, a bottom side and a second straight side which are connected end to end in sequence.
In a preferred embodiment, the top edge and the bottom edge are parallel to each other, and the first straight edge and the second straight edge are perpendicular to the bottom edge.
In a preferred embodiment, the top edge and the bottom edge are parallel to each other; and the included angle between the first straight edge and the bottom edge and the included angle between the second straight edge and the bottom edge are both obtuse angles, or the included angle between the first straight edge and the bottom edge and the included angle between the second straight edge and the bottom edge are both acute angles.
In a preferred embodiment, the junction of the top edge and the first straight edge, the junction of the first straight edge and the bottom edge, and the junction of the bottom edge and the second straight edge all adopt circular arc transition; and the joint of two adjacent first corrugated parts adopts circular arc transition, and/or the joint of two adjacent second corrugated parts adopts circular arc transition.
In a preferred embodiment, the shape of the first corrugation is a periodic sine wave and/or the shape of the second corrugation is a periodic sine wave.
In a preferred embodiment, the first steel plate limb and the second steel plate limb are connected by welding.
In a preferred embodiment, the end closure plates are generally triangular in shape.
In a preferred embodiment, the side of the end closure plate which is attached to the first steel plate limb engages with at least one first corrugation on the first steel plate limb; the end sealing plate is connected to the side edge of the second steel plate limb and is meshed with at least one second corrugated part on the second steel plate limb.
In a preferred embodiment, the angle iron comprises two end sealing plates, and the two end sealing plates are respectively fixed at two ends of the first steel plate limb.
In a preferred embodiment, the angle iron comprises at least one pretensioning member, the two ends of which are connected to the end closure plates at the two ends, respectively.
In a preferred embodiment, the end sealing plate is provided with a component hole; the corrugated angle steel comprises an anchorage device arranged on the outer end face of the end sealing plate, and the pre-tensioning member penetrates through the member hole and is fixedly connected with the anchorage device.
In a preferred embodiment, the pretensioning member is a pretensioning cable.
In a preferred embodiment, the angle iron comprises at least one rib, two sides of which are connected to the first and second steel plate limbs, respectively.
In a preferred embodiment, the ribs are shaped the same as the end closure plates.
The invention has the characteristics and advantages that: through first corrugated portion, make first steel sheet limb form unsmooth undulation's shape in its thickness direction, when bearing its length direction's effort, make the distribution of this effort on the working face of perpendicular to its self length direction more disperse, reduced stress concentration, be favorable to improving the out-of-plane stability ability. Through the second corrugated part, the second steel plate limb forms a concave-convex shape in the thickness direction, and when bearing the acting force in the length direction, the distribution of the acting force on the acting surface vertical to the length direction of the second steel plate limb is more dispersed, so that the stress concentration is reduced, and the stability outside the plane is favorably improved. The first steel plate limb and the second steel plate limb are connected together, so that the corrugated angle steel provided by the invention has better compressive bearing capacity and out-of-plane deformation resistance, and the buckling-resistant bearing capacity and the fatigue strength are improved, thereby improving the mechanical property.
When the corrugated angle steel provided by the invention is used for building an assembled steel structure building system, the first corrugated part or the second corrugated part and the spliced members can form an occlusion structure, and the first corrugated part or the second corrugated part and the spliced members are stressed together at the splicing position, so that the integral stress performance and structural stability of the assembled steel structure building system are improved. The end sealing plate can strengthen the connection strength between the first steel plate limb and the second steel plate limb. When a plurality of these ripple angle steel end to end, can make the end shrouding of a ripple angle steel and the end shrouding of another ripple angle steel paste mutually and fixed connection, come transmission pulling force or pressure through the end shrouding, increased hookup location's atress area, can effectively improve bearing capacity.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a corrugated angle iron provided by the present invention;
FIG. 2 is an exploded view of a corrugated angle iron according to the present invention;
FIG. 3 is a schematic view of the connection between a first steel plate limb and a second steel plate limb in the corrugated angle steel provided by the present invention;
FIG. 4 is a schematic view of a first embodiment of a first corrugated portion or a second corrugated portion in the corrugated angle steel provided by the invention;
FIG. 5 is a schematic view of a second embodiment of a first corrugation or a second corrugation in the corrugated angle iron provided by the invention;
FIG. 6 is a schematic view of a third embodiment of a first corrugated portion or a second corrugated portion in the angle iron provided by the invention;
FIG. 7 is a schematic view of a fourth embodiment of the first corrugation or the second corrugation in the corrugated angle iron provided by the invention;
FIG. 8 is a schematic view of a fifth embodiment of the first corrugation or the second corrugation in the corrugated angle iron provided by the invention;
FIG. 9 is a schematic view of a sixth embodiment of the first corrugation or the second corrugation in the corrugated angle iron provided by the invention;
FIG. 10 is a schematic view of a seventh embodiment of the first corrugation or the second corrugation in the corrugated angle iron provided by the invention;
FIG. 11 is a top view of a corrugated angle iron provided by the present invention;
fig. 12 is an exploded schematic view of the end-to-end connection of the corrugated angle steel provided by the present invention.
The reference numbers illustrate: 10. a first steel plate limb; 11. a first corrugated portion; 12. a first direction; 20. a second steel plate limb; 21. a second corrugated portion; 22. a second direction; 31. a first straight side; 32. a second straight side; 33. a top edge; 34. a bottom edge; 35. a first groove; 40. a second groove; 50. an end sealing plate; 51. a component hole; 60. a pre-tensioning member; 61. an anchorage device; 62. a prestressed stay cable; 70. a rib plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the present invention provides a corrugated angle iron, including: the steel plate comprises a first steel plate limb 10, a second steel plate limb 20 and at least one end sealing plate 50 arranged at the end part of the first steel plate limb 10, wherein one length-direction side edge of the first steel plate limb 10 is fixedly connected with one length-direction side edge of the second steel plate limb 20; the end closure plate 50 is attached on one side to the first steel plate limb 10 and on the other side to the second steel plate limb 20. Referring to fig. 2 and 3, at least one first corrugated portion 11 is distributed along the width direction of the first steel plate limb 10, and the first steel plate limb 10 is formed into a concave-convex shape in the thickness direction thereof through the first corrugated portion 11, so that when bearing the acting force in the length direction thereof, the acting force is distributed more dispersedly on the acting surface perpendicular to the length direction thereof, thereby reducing stress concentration and facilitating improvement of out-of-plane stability. The second steel plate limb 20 is distributed with at least one second corrugated part 21 along the width direction, and the second steel plate limb 20 is enabled to form a concave-convex shape in the thickness direction through the second corrugated part 21, so that the distribution of the acting force on the acting surface vertical to the length direction of the second steel plate limb is more dispersed when the acting force in the length direction is borne, the stress concentration is reduced, and the stability outside the plane is favorably improved. The first steel plate limb 10 and the second steel plate limb 20 are connected together, so that the corrugated angle steel provided by the invention has better compressive bearing capacity and out-of-plane deformation resistance, the buckling-resistant bearing capacity and the fatigue strength are improved, and the mechanical property is improved.
When the corrugated angle steel provided by the invention is used for building an assembled steel structure building system, the first corrugated part 11 or the second corrugated part 21 and the spliced members form an occlusion structure, and the joint stress is applied at the splicing position, so that the integral stress performance and the structural stability of the assembled steel structure building system are improved. The end closure plate 50 may enhance the strength of the connection between the first and second steel plate limbs 10, 20. When a plurality of this ripple angle steel end to end, can make the end shrouding 50 of a ripple angle steel laminate mutually and fixed connection with the end shrouding 50 of another ripple angle steel, transmit pulling force or pressure through end shrouding 50, increased hookup location's atress area, can effectively improve bearing capacity.
Specifically, the number of the first corrugations 11 in the first steel plate limb 10 may be one or more; when the number of the first corrugations 11 in the first steel plate limb 10 is plural, the shapes and sizes of the respective first corrugations 11 may be the same or different.
The number of the second corrugations 21 in the second steel plate limb 20 may be one or more; when the number of the second corrugations 21 in the second steel plate limb 20 is plural, the shapes and sizes of the respective second corrugations 21 may be the same or different.
The number of the first corrugations 11 and the number of the second corrugations 21 may be equal or may not be equal; in the corrugated angle iron provided by the present invention, the first corrugation 11 may be the same or different in shape and size from the second corrugation 21.
As shown in FIG. 2, the first steel plate limb 10 has a width-directional dimension L1Dimension L in the width direction of the second steel plate limb 202May or may not be equal. In one embodiment of the present invention, L1＝L2When subjected to a lengthwise force, the force is more evenly distributed to the first and second steel plate limbs 10, 20.
As shown in FIG. 2, the first steel plate limb 10 has a longitudinal dimension L3The length direction L of the second steel plate limb 204May or may not be equal. Preferably, L3＝L4And both ends of the first steel plate limb 10 are flush with both ends of the second steel plate limb 20, respectively.
When the corrugated angle steel is manufactured, the first steel plate limb 10 and the second steel plate limb 20 can be manufactured and molded respectively, and then the first steel plate limb and the second steel plate limb are connected together in a welding mode, so that the difficulty of processing and manufacturing is reduced.
In order to make the force distribution in each position in the first steel plate limb 10 more uniform, the first steel plate limb 10 comprises a plurality of first corrugations 11 which are all the same in shape and size, and as shown in fig. 3, the first corrugations 11 are connected end to end in sequence. In order to make the force distribution in the second steel plate limb 20 more uniform in all positions, the second steel plate limb 20 comprises a plurality of second corrugations 21 which are all the same in shape and size, and as shown in fig. 3, the second corrugations 21 are connected end to end in sequence.
The width direction of the first steel plate limb 10 is taken as a first direction 12, and the first corrugated parts 11 are distributed along the first direction 12; taking the width direction of the second steel plate limb 20 as the second direction 22, the respective second corrugations 21 are distributed along the second direction 22. The angle between the first direction 12 and the second direction 22 is denoted as β, and 0 ° < β <180 °. Preferably, β is 90 °.
The inventor finds that: the first corrugated parts 11 with different shapes can lead the distribution of the acting force on the first steel plate limb 10 to present different characteristics; the differently shaped second corrugations 21 provide a different distribution of forces on the second steel plate limb 20. Therefore, in order to further improve the force-receiving characteristics of the corrugated angle steel provided by the present invention, the shapes of the first corrugated portion 11 and the second corrugated portion 21 are modified as follows:
in an embodiment of the present invention, as shown in fig. 4 to 9, the first corrugated portion 11 includes a top edge 33, a first straight edge 31, a bottom edge 34, and a second straight edge 32 connected end to end in sequence, where the first straight edge 31, the bottom edge 34, and the second straight edge 32 surround to form a first groove 35 having an opening; the top edge 33 and the bottom edge 34 are located on either side of the first straight edge 31. When a plurality of first corrugations 11 are connected end to end, the second straight edge 32 of a preceding first corrugation 11 of two adjacent first corrugations 11 is connected to the top edge 33 of a succeeding first corrugation 11.
And/or the second corrugated portion 21 comprises a top edge 33, a first straight edge 31, a bottom edge 34 and a second straight edge 32 which are connected end to end in sequence, wherein the first straight edge 31 and the second straight edge 32 are both positioned on the same side of the bottom edge 34, and on the side, the first straight edge 31, the bottom edge 34 and the second straight edge 32 surround to form a first groove 35 with an opening; the top edge 33 and the bottom edge 34 are located on either side of the first straight edge 31. When a plurality of second corrugations 21 are connected end to end, the second straight edge 32 of a preceding second corrugation 21 is connected to the top edge 33 of a succeeding second corrugation 21 in two adjacent second corrugations 21.
Preferably, the first steel plate limb 10 comprises at least 3 first corrugations 11 and the second steel plate limb 20 comprises at least 3 second corrugations 21.
Further, top edge 33 and bottom edge 34 are parallel to each other. In the first steel panel limb 10, the top edge 33 and the bottom edge 34 are both parallel to the first direction 12; in the second steel panel limb 20, the top edge 33 and the bottom edge 34 are both parallel to the second direction 22.
As shown in fig. 3, the present invention provides a corrugated angle iron in which a first steel plate limb 10 and a second steel plate limb 20 surround to form a second groove 40. Preferably, the opening of the first groove 35 in the first steel plate limb 10 adjacent to the second steel plate limb 20 faces away from the second groove 40, and the opening of the first groove 35 in the second steel plate limb 20 adjacent to the first steel plate limb 10 also faces away from the second groove 40; alternatively, the first indentation 35 in the first steel plate limb 10 adjacent the second steel plate limb 20 opens into the second indentation 40, and the first indentation 35 in the second steel plate limb 20 adjacent the first steel plate limb 10 also opens into the second indentation 40. Further, the first steel plate limb 10 is symmetrical to the second steel plate limb 20.
In some embodiments, as shown in fig. 4, α is 90 °, γ is 90 °, and each of the first straight side 31 and the second straight side 32 is perpendicular to the bottom side 34, so that the first groove 35 has a rectangular shape.
In some embodiments, as shown in fig. 5, the included angle α between the first straight edge 31 and the bottom edge 34 and the included angle γ between the second straight edge 32 and the bottom edge 34 are obtuse angles, so that the first groove 35 has an inverted trapezoidal shape, and the width of the first groove 35 gradually increases along the direction from the bottom edge 34 to the top edge 33. Further, 90 ° < α <170 °, 90 ° < γ <170 °. Preferably, α ═ γ.
In some embodiments, as shown in fig. 6, the included angle α between the first straight edge 31 and the bottom edge 34 and the included angle γ between the second straight edge 32 and the bottom edge 34 are acute angles, so that the first groove 35 has a trapezoidal shape, and the width of the first groove 35 gradually decreases along the direction from the bottom edge 34 to the top edge 33. Further, 10 ° < α <90 °, 10 ° < γ <9 °. Preferably, α ═ γ.
In order to further improve the stress performance of the corrugated angle steel provided by the invention, as shown in fig. 7-9, the joint of the top edge 33 and the first straight edge 31, the joint of the first straight edge 31 and the bottom edge 34, and the joint of the bottom edge 34 and the second straight edge 32 all adopt arc transition; the joint of two adjacent first corrugated parts 11 adopts circular arc transition, and/or the joint of two adjacent second corrugated parts 21 adopts circular arc transition, so as to reduce stress concentration at the joint and improve the strength and bearing capacity of the integral structure of the corrugated angle steel. The radius of the arc transition is marked as R; in some embodiments, the radii of the arc transitions at each junction are all equal in the first steel plate limb 10; in the second steel plate limb 20, the radii of the circular arc transitions at the respective junctions are all equal.
In one embodiment of the present invention, as shown in fig. 10, the shape of the first corrugation 11 is a one-cycle sine wave, and/or the shape of the second corrugation 21 is a one-cycle sine wave. In the first steel plate limb 10, a plurality of first corrugated parts 11 are connected end to end along a first direction 12 to form a continuous sine wave; in the second steel plate limb 20, a plurality of second corrugations 21 are connected end to end in a second direction 22, forming a continuous sine wave. Preferably, the angle β between the first direction 12 and the second direction 22 is 90 °.
Having described the embodiments of the first and second steel plate limbs 10 and 20, the inventors have next developed further improvements in the construction of the angle with respect to the end closure plates.
The end sealing plate 50 and the first steel plate limb 10 and the end sealing plate 50 and the second steel plate limb 20 can be connected in a welding mode, so that high connection strength is guaranteed.
The overall shape of the end sealing plate may be polygonal such as rectangular or trapezoidal, preferably, as shown in fig. 2 and 11, the shape of the end sealing plate 50 is overall triangular, and two side edges of the triangular end sealing plate 50 are respectively connected to the first steel plate limb 10 and the second steel plate limb 20, so that the end sealing plate 50 and the first steel plate limb 10 and the end sealing plate 50 and the second steel plate limb 20 have a longer connection length, and at the same time, the space occupied by the end sealing plate 50 is reduced, which is convenient for the corrugated angle iron provided by the present invention to be assembled with other components.
In one embodiment of the present invention, the side of the end sealing plate 50 connected to the first steel plate limb 10 is provided with a wave-shaped curve, and the wave-shaped curve has the same cross-sectional shape as the first corrugated portion 11 of the first steel plate limb 10, so that the end sealing plate 50 is engaged with the first steel plate limb 10; the side of the end sealing plate 50 connected to the second steel plate limb 20 is provided with a wave-shaped curve, and the wave-shaped curve is the same as the cross-sectional shape of the second corrugated portion 21 on the second steel plate limb 20, so that the end sealing plate 50 is engaged with the second steel plate limb 20. Thus, the length of the end sealing plate 50 matched with the first steel plate limb 10 and the length of the end sealing plate 50 matched with the second steel plate limb 20 are further increased, so that the connection is firmer.
Further, the length of the side of the end sealing plate 50 connected to the first steel plate limb 10 may be equal to or different from the width of the first steel plate limb 10. Preferably, the length of the side of the end sealing plate 50 connected to the first steel plate limb 10 is less than or equal to the width of the first steel plate limb 10, so that the overall size of the angle iron can be reduced while ensuring the connection strength.
The length of the side of the end closure plate 50 connected to the second steel plate limb 20 may or may not be equal to the width of the second steel plate limb 20. Preferably, the length of the side of the end sealing plate 50 connected to the second steel plate limb 20 is less than or equal to the width of the second steel plate limb 20, so that the overall size of the angle steel can be reduced while ensuring the connection strength.
The arrangement of the end plate 50 in the corrugated angle is not limited to one. For example: an end sealing plate 50 is provided only at one end of the first steel plate limb 10, and at the end, the number of the end sealing plates 50 may be one, or a plurality of end sealing plates 50 may be stacked; alternatively, the end sealing plates 50 are provided at both ends of the first steel plate limb 10, and at either end, the number of the end sealing plates 50 may be one, or a plurality of the end sealing plates 50 may be stacked.
In an embodiment of the present invention, as shown in fig. 1 and 2, the angle iron comprises at least one pre-tensioning member 60, two ends of the pre-tensioning member 60 are respectively connected to the end sealing plates 50 at two ends, and the pre-tensioning member 60 applies a pulling force to the end sealing plates 50, so that the stress performance of the angle iron can be improved, and the load-bearing capacity can be improved.
The end sealing plate 50 may be disposed between the first steel plate limb 10 and the second steel plate limb 20, and respectively abut against the inner side surface of the first steel plate limb 10 and the inner side surface of the second steel plate limb 20, or may be disposed on the end surface of the first steel plate limb 10. Preferably, the end closure plate 50 is provided on an end face of the first steel plate limb 10 in abutment with an end face of the first steel plate limb 10 and in abutment with an end face of the second steel plate limb 20, so that the end closure plate 50 applies pressure to the first and second steel plate limbs 10, 20 under the pretensioning action of the pretensioning member 60.
Further, the end sealing plate 50 is provided with a component hole 51; the corrugated angle steel comprises an anchorage device 61 arranged on the outer end face of the end sealing plate 50, and the pre-tensioning member 60 penetrates through the member hole 51 and is fixedly connected with the anchorage device 61. The pre-tensioning member 60 is pre-stressed and tensioned and then fixed to the end closure plate 50 by anchors 61.
In some embodiments, the number of pre-tensioning elements 60 is multiple, the length direction of each pre-tensioning element 60 is parallel to the length direction of the first steel plate limb 10, and both ends are connected to the end closure plates 50 at both ends.
In some embodiments, the pretensioning member 60 is a pretensioning cable 62. Specifically, the prestressed cable 62 may be a prestressed strand or a prestressed wire.
In one embodiment of the present invention, the angle iron comprises at least one rib 70, and two sides of the rib 70 are connected to the first steel plate limb 10 and the second steel plate limb 20, respectively. The strength of the angle steel is enhanced by the rib plate 70, and the stress performance is further improved. When the number of the rib plates 70 is plural, the plural rib plates 70 are distributed at intervals along the length direction of the first steel plate limb 10. In some embodiments, the ribs 70 are provided with member holes 51 through which the pretensioning member 60 passes.
Further, the rib 70 has the same shape as the end closure plate 50. The rib 70 is generally triangular in shape; the side edge of the rib plate 70 connected to the first steel plate limb 10 is provided with a wave curve, and the wave curve is the same as the section shape of the first corrugated part 11 on the first steel plate limb 10, so that the rib plate 70 is meshed with the first steel plate limb 10; the side of the rib 70 connected to the second steel plate limb 20 is provided with a wave-shaped curve, and the wave-shaped curve is the same as the cross-sectional shape of the second corrugation part 21 on the second steel plate limb 20, so that the rib 70 is engaged with the second steel plate limb 20, and the overall size of the angle iron is reduced under the condition of ensuring the connection strength. Preferably, the rib plate 70 and the first steel plate limb 10 and the rib plate 70 and the second steel plate limb 20 are connected in a welding manner, so as to ensure high connection strength.
The corrugated angle steel may be connected to other components in a building system, or a plurality of the corrugated angle steel may be connected end to end, as shown in fig. 12, in a component system formed by connecting a plurality of the corrugated angle steel end to end, an end sealing plate 50 may be disposed only at one end of the first steel plate limb 10, and in two adjacent corrugated angle steel, the lower end of one corrugated angle steel is connected to the end sealing plate 50 located at the upper end of the other corrugated angle steel; the pre-tensioning member penetrates through the component system and is connected with the end sealing plates at two ends of the component system, and the pre-tensioning member can simultaneously apply pre-stress to a plurality of corrugated angle steels in the component system.
The above description is only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.
Claims (16)
1. A corrugated angle iron, comprising:
the first steel plate limb is distributed with at least one first corrugated part along the width direction;
the second steel plate limb is distributed with at least one second corrugated part along the width direction, and the side edge of one length direction of the first steel plate limb is fixedly connected with the side edge of one length direction of the second steel plate limb;
at least one end sealing plate arranged at the end part of the first steel plate limb;
and one side edge of the end sealing plate is connected to the first steel plate limb, and the other side edge of the end sealing plate is connected to the second steel plate limb.
2. The angle iron of claim 1, wherein the first steel plate limb comprises a plurality of first corrugations which are sequentially connected end to end;
the number of the second corrugated parts in the second steel plate limb is multiple, and the second corrugated parts are sequentially connected end to end.
3. The angle iron of claim 1, wherein a cross section of the first corrugation perpendicular to the length direction of the first steel plate limb comprises a top edge, a first straight edge, a bottom edge and a second straight edge which are connected end to end in sequence,
and/or the section of the second corrugated part, which is perpendicular to the length direction of the second steel plate limb, comprises a top edge, a first straight edge, a bottom edge and a second straight edge which are sequentially connected end to end.
4. The angle iron of claim 3, wherein the top edge and the bottom edge are parallel to each other, and the first straight edge and the second straight edge are both perpendicular to the bottom edge.
5. The angle iron of claim 3, wherein the top and bottom edges are parallel to each other; and the number of the first and second electrodes,
the included angle between the first straight edge and the bottom edge and the included angle between the second straight edge and the bottom edge are obtuse angles, or the included angle between the first straight edge and the bottom edge and the included angle between the second straight edge and the bottom edge are acute angles.
6. The angle iron according to any one of claims 3 to 5, wherein the junction of the top edge and the first straight edge, the junction of the first straight edge and the bottom edge, and the junction of the bottom edge and the second straight edge are all in circular arc transition;
and the joint of two adjacent first corrugated parts adopts circular arc transition, and/or the joint of two adjacent second corrugated parts adopts circular arc transition.
7. The angle iron of claim 1 or 2, wherein the first corrugation is shaped as a periodic sine wave and/or the second corrugation is shaped as a periodic sine wave.
8. The angle iron of claim 1, wherein the first plate limb is welded to the second plate limb.
9. The angle iron of claim 1, wherein the end closure plate is generally triangular in shape.
10. The angle iron of claim 9, wherein the side of the end closure plate attached to the first steel plate limb engages at least one first corrugation on the first steel plate limb; the end sealing plate is connected to the side edge of the second steel plate limb and is meshed with at least one second corrugated part on the second steel plate limb.
11. The angle iron of claim 1, wherein the angle iron comprises two end closure plates, the two end closure plates being secured to respective ends of the first steel plate limb.
12. The angle iron of claim 11, wherein the angle iron comprises at least one pre-tensioning member, the ends of the pre-tensioning member being attached to the end closure plates at each end.
13. The angle iron of claim 12, wherein the end plate has component holes;
the corrugated angle steel comprises an anchorage device arranged on the outer end face of the end sealing plate, and the pre-tensioning member penetrates through the member hole and is fixedly connected with the anchorage device.
14. The angle iron of claim 12, wherein the pre-tensioning member is a pre-stressed cable.
15. The angle iron of claim 1, comprising at least one rib having two sides connected to the first and second steel plate limbs, respectively.
16. The angle iron of claim 15, wherein the rib is shaped to be the same as the end closure plate.
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| CN201910788278.2A CN112431349A (en) | 2019-08-26 | 2019-08-26 | Corrugated angle steel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910788278.2A CN112431349A (en) | 2019-08-26 | 2019-08-26 | Corrugated angle steel |
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