CN104411888B - Including cable and the structural texture of one or more strake and tension element - Google Patents

Abstract

The invention provides one and include structural detail and the structural texture of at least one cable (101), described cable is set at least some of weight bearing tension force to carry described structural detail.Described cable limits outer surface (102), and at least one strake (104) forms jut for reducing the vibration that wind and rain causes on described outer surface.The height of described strake is coupled to the strake root of the outer surface of cable and strake away from cable the strake end distance that terminates outwardly, and the width that described strake has is transverse to height, and described width is being gradually reduced on the direction of strake end from strake root.Described height is less than the 5% of the diameter of cable.And, described strake includes the first strake surface portion deviating from cable, and described first strake surface portion is recessed or straight.

Description

Including cable and the structural texture of one or more strake and tension element

Technical field

The present invention relates to a kind of structural texture including structural detail and at least one cable, described line Cable is set to bear tension force, in order to carry at least some of weight of described structural detail.Described cable Limiting outer surface, at least one strake (strake, edge strip, hoop) is formed prominent on described outer surface Play part to reduce the vibration that wind and rain causes.

Background technology

Cable support structure or cable mounting structure (such as, antenna and bridge) be typically due to wind and rain and Vibration.In the cable of bridge, the traffic circulation through bridge will also result in vibration, but, The vibration of 95% is caused by wind and rain.Owing to cable can be caused damage and fatigue by these vibrations, So these vibrations are that people are unwanted.

It is well known that by viscous damper or frcition damper are introduced bridge cable and drag-line (stay, bracing wire, stay cord) reduces these vibrations.But, this device can not stop wind and rain The thread caused.This thread changes the air dynamic behaviour of cable, and causes cable to vibrate.

Summary of the invention

One of embodiments of the present invention aims at, it is provided that the structural texture of a kind of improvement, one The tension element improved and a kind of method of improvement, to reduce the vibration caused by wind and rain.

Another of embodiments of the present invention aims at, and reduces or even stops shape on cable The thread of Cheng Shui.

The further object of embodiments of the present invention is, reduces the vibration that wind and rain causes, and Do not increase drag force.

According to first aspect, the invention provides a kind of structural detail and at least one cable of including Structural texture, described cable is set to bear tension force to carry at least some of of described structural detail Weight, described cable limits outer surface, and at least one strake forms jut on described outer surface For reducing the vibration that wind and rain causes, wherein, the height that described strake has is to be connected to cable The strake end distance that the strake root of outer surface and strake terminate outwardly away from cable, described Strake has the width transverse to described height, described width from strake root towards strake end Be gradually reduced on direction, wherein, described height less than cable diameter 5%, and wherein, institute Stating strake and include deviating from the first strake surface portion away from cable, described first strake surface portion is Recessed or straight.

By strake is designed as the 5% of the height diameter less than cable, and strake is made to include deviating from Away from the first strake surface portion of cable, wherein, the first strake surface portion is recessed or pen Straight, strake has and can reduce at cable when air (wind) flows along the outer surface of cable The shape of any water occurred on this outer surface, this is because owing to the first strake surface portion is pen Straight or recessed, so by making rainwater become inclined-plane to make water deviate this surface.Its effect is, Stop on cable, form water thread.This provides for improved the aerodynamic quality of cable, accordingly, with biography System cable is compared, and reduces or even stops the vibration that wind and rain causes as far as possible, and do not increase and act on Drag force on cable.

Recessed or straight surface portion can be limited in any part of strake.But, it will be understood that , by suitably arranging concave shape surface, can be used as inclined-plane, water can flow along this inclined-plane, And wind can evict water from from this inclined-plane.Therefore, in one embodiment, at least one is recessed Shape surface is provided so that water is deviateed the outer surface of cable by wind.

In order to realize latter event, recessed or straight surface portion is configured such that this part deviates from Cable, in order to wind can move water and further recessed or straight along the outer surface of cable Mobile water in surface portion.In a specific embodiment, recessed or straight surface portion The tangent line overlapped with the tangent line of the outer surface of cable is limited at least one point (such as, central point). And, the tangent line at strake root can be limited to less than or equal at strake end by concave shape surface portion The tangent line in portion.

Cable is suitably adapted for the outdoor application of weather.Cable may adapt to support mast and/or Mounting structure (such as, bridge or platform).Such as, cable can combine with cable drag-line bridge use. And, can be main cables or the suspension cable of suspension bridge according to the cable of the present invention.And, cable Can be suspension cable, such as, for the suspension cable of cable drag-line bridge.

Under the context of the present invention, term " cable " and " drag-line " are considered synonym, unless It is described elsewhere.

Cable can be made up of solid-state material, such as, and cylindricality solid wire.And, cable can include can phase For multiple ropes that are braided with one another or that distort.Such as, cable can be to include being twisted into helical form The cable (wire rope, wirerope) of rope.The quantity of rope can be one or more, such as, 2,3,4,5,6,7,8,9,10 or 15 or 20.In the case of there are many ropes, Rope can extend parallel to each other, or rope can distort or weave.

The outer surface of cable can be unprocessed/crude or smooth.Can be at rope Around provide sheath, such as, in order to generate smooth outer surface.Smooth it will be appreciated that on this surface The region not forming strake in be smooth.Sheath can serve as the anti-corrosion protection of cable.At one In embodiment, sheath generates rough outer surface, such as, provides multiple recessed in this outer surface Entrance.The unsmooth surface of sheath can be unprocessed/crude, or specially manufacture, To provide this rough outer surface.

At least one strake described away from cable radially (relative to the geometric center of cable), To form jut or outthrust or ridge.Strake longitudinally can prolong along the outer surface of cable Stretch.

At least one strake described can form the single element of outer surface that is fixing or that be fastened to cable. Strake can be fixed by binding agent/be connected to the outer surface of cable.Alternately or as supplement, can Tightening member is provided to be fixed to outer surface for by strake.One example of this tightening member is one Individual fixture or multiple fixture.

In one embodiment, at least one strake described is attached to cable so that described at least one Individual strake can be pulled down and again be attached to cable.

In one embodiment, at least one strake described is permanently fixed to cable.For good and all solid Fixed it will be appreciated that in the case of the most for good and all damaging strake and/or cable, cannot move from cable Except strake.In an example, at least one strake described (such as, passes through ultrasound wave by welding Welding) it is fixed to cable.

In one embodiment, at least one strake described formed cable overall ingredient or For the sheath being formed at around cable." formed overall ingredient " it will be appreciated that strake and cable/ Sheath forms a single element, such as, by forming it into one.In one embodiment, At least one strake described and cable/jacket-shaped integral formula element (monolithic).Should be in the present invention Context in understand term " integral element ", between cable and strake, i.e. do not limit any connecing Seam (such as, weld seam).

At least one strake described is covered it is to be understood, therefore, that term " is connected to outer surface " It is coupled to the situation of the single element of the outer surface of cable, and in another embodiment The situation that at least one strake described forms as one with cable.

Under the context of the present invention, term " strake root " should represent strake closest to cable The part of outer surface.The single unit of the outer surface being fixed to cable is formed at least one strake described In the embodiment of part, strake root contacts with the outer surface of cable.Formed at strake and cable/sheath In the embodiment of monoblock type product or restriction integral element, strake root should be by cable and row Transition between plate limits.

On the contrary, " strake end " defines the free end of strake, i.e. strake face away from line Cable the end terminated.

In the context of the present invention, when the use of reference strake, term " highly " should represent The upwardly extending size in side that the radius with cable (strake is connected on this cable) of strake is parallel, That is, distance between strake end and strake root on the direction vertical with the outer surface of cable. This height is less than the 5% of the diameter of cable.

In the context of the present invention, when the use of reference strake, term " width " should represent row The upwardly extending size in side at the height transverse to strake of plate.Width from strake root towards row It is gradually reduced on the direction of plate end.

In the context of the present invention, when the use of reference strake, term " length " should represent row The longest dimension of plate, this length is the most vertical with height and width.At least one strake described is along strake Length be connected to cable.

Strake and/or cable can include metal material, such as, steel, copper, rustless steel, aluminum, zinc. And, strake and/or cable can include plastic material, such as, PVC, PE, HDPE；With/ Or elastomeric material, such as, natural rubber or synthetic rubber；And/or composite, such as, including glass Glass fiber, carbon fiber, the composite of Wei Kete synthetic fibre (vectran).

The height of at least one strake described is less than the 5% of the diameter of cable, such as, less than 4%, Such as, less than 3%, such as, less than 2%, such as, less than 1%, such as, less than 0.5%, example As, less than 0.4%, such as, less than 0.3%, such as, less than 0.2%, such as, less than 0.1%.

The height of strake can be less than 10mm, such as, less than 9mm, such as, less than 8mm, Such as, less than 7mm, such as, less than 6mm, such as, less than 5mm, such as, less than 4mm, Such as, less than 3mm, such as, less than 2mm, such as, less than 1mm.

The widest portion of strake may make up the 0.1-5% of the periphery of cable, such as, 0.1%, such as, 0.5%, such as, 1%, such as, 2%, such as, 3%, such as, 4%, such as, 5%.

The widest portion of strake can be in the range of 0.1-25mm, such as, and 1mm, such as, 2.5mm, such as, 5mm, such as, 7.5mm, such as, 10mm, such as, 12.5mm, Such as, 15mm, such as, 17.5mm, such as, 20mm, such as, 22.5mm, such as, 25mm。

The diameter of cable can be 50-350mm, such as, more than 50mm, such as, more than 100 Mm, such as, more than 150mm, such as, more than 200mm, such as, more than 250mm, example As, more than 300mm, such as, more than 350mm.

In order to enable the water thread from cable to generate inclined-plane, the first strake surface portion can be from row Buttress portion extends to strake end, thus the thread for flowing along the outer surface of cable provides inclined-plane.

In one embodiment, the shape of cross section of strake is defined to triangle or trapezoidal.At triangle In the case of shape, two sides of triangle can deviate from cable, and the 3rd of triangle the side and line The outer surface contact of cable.Therefore, in later instance, strake is limited to the end extended away from cable The conical section terminated (such as, in strake end) in end.The side deviating from cable is recessed The first that enter or straight strake surface.

In one embodiment, at least one strake described includes two concave shape surfaces.The two The shape on surface is identical and is of the same size.Alternately, concave shape and/or size can not With.The two concave shape surface of at least one strake described can be away from each other.

In some embodiments it may be desirable to be, end is the most sharp-pointed.However, it is understood that It is that no matter end is the most sharp-pointed, although just limiting Radius end this radius the most sharp-pointed the most all the time More reduce.In one embodiment, the radius of end is less than 1mm, such as, less than 0.8mm, Such as, less than 0.6mm.

As the alternative of sharp-pointed end, the end of strake can be smooth or it is recessed to limit one Degree.It being understood that in the case of the latter, the general shape of strake can be trapezoidal.

In the context of the present invention, although these sides necessarily limit the method for the outer surface of cable Line, but two side surfaces being remote from the triangle of the outer surface extension of cable should be expressed as " radial side Surface ".In the context of the present invention, point/transition that radial side face contacts with the outer surface of cable Place should be expressed as " contact point " of the outer surface of each radial side face and cable.And, at this In bright context, that side that the outer surface with cable of triangle contacts should be expressed as triangle " contact surface ".

At least one strake described limit trapezoidal in the case of, trapezoidal can be by above-mentioned " contact surface " Above-mentioned with two " radial side face " limits.Strake end can be limited between the two radial side face Portion.This surface can be flat or recessed.

In one embodiment, every in (triangle and/or trapezoidal) the two radial side face The individual normal at the contact point extending through each radial side face transverse to (cable) outer surface Side upwardly extends.

In another embodiment, in (triangle and/or trapezoidal) the two radial side face The contact point extending through each the first radial side face of the first side surface and (cable) outer surface Normal overlaps, and the second side surface in the two radial side face and the extension of (cable) outer surface Misaligned through the normal of the contact point of each the second radial side face.

By providing first surface part, in outer surface and the recessed or straight surface portion of cable Between can realize the transition that smooths so that the tangent line one of the tangent line of surface portion and the outer surface of cable Cause.It being understood that due to when water droplet moves to recessed or straight surface from outer surface, The momentum of the water droplet produced by wind and gravity will not significantly reduce, so on recessed or straight surface And the mistake between cable is getted over smooth, evicting from/discharging of water is the most effective.

While it is true, present invention additionally comprises strake to comprise the reality of concave shape surface portion and transition portion Executing mode, concave shape surface portion limits one or more concave shape surfaces, mistake in this embodiment Cross the part outer surface interconnection by the concave shape surface portion of strake with cable.In other words, this transition part Dividing can be than concave shape surface closer to strake root.In some embodiments, strake root is permissible Limit transition portion.Equally, concave shape surface can be than strake root closer to strake end.One In a little embodiments, strake end is limited by concave shape surface.

Also, it is to be understood that each radial side face can by the transitional surface of transition portion and The surface of recessed or straight surface portion limits.Later surface can be or not be concave-like Surface.

It being understood that first these water droplets contact this when water droplet is along the outer surface flowing of cable Transitional surface.Therefore, when water droplet flows and when arriving transitional surface along the outer surface of cable, should Transitional surface stops the amount of water droplet relative to the angle-determining of its contact point.At transitional surface at contact point Being in the upwardly extending embodiment in side of the normal transverse to outer surface, contact surface can be by water droplet Guide in the concave shape or straight surface of each radial side face.

It being understood that this transitional surface is the shortest (that is, in outer surface and the concave shape part of cable Initial part between distance the least), concave shape or straight surface are the most effective.

In one embodiment, at least one strake described is more longer than the periphery of cable, such as, is The twice of the length of periphery.In one embodiment, the length of at least one strake described is equal to line The length of cable or more longer than the length of cable.It being understood that if strake forms spiral shell around cable Rotation shape, then the length of strake is just longer than the length of cable.

Strake can upwardly extend in the side of the longitudinal direction transverse to cable.At an embodiment In, at least one strake described limits the helix of the outer surface extension along cable.Relative to cable Longitudinal direction, the pitch of helix can be in the range of 20-70 degree, such as, at the model of 30-60 degree In enclosing, such as, in the range of 40-50 degree.Helix can along the whole length of cable longitudinally Ground extends.Alternately/and as supplementing, one or more strakes can prolong only along a part for cable Stretch.

Owing to cable can be exposed to wind from all directions, so at least one strake described can be relative to line It is unrelated with wind direction that cable is configured so that act on the power on cable and at least one strake described, thus produces Raw omnidirectional solution, i.e. have the cable of at least one strake have substantially with wind direction without The performance closed.If this target unrealized, then the cable with at least one strake can be able to draw Enter Den Hartog to go at express speed to vibrate on some wind direction of (galloping vibration) risk for asymmetric 's.Once cable moves transverse to oncoming wind/vibrates, and the wind angle of attack of moment changes the most termly. The fact that also depend on the angle of attack with air force combines, and constantly feeds the situation in vibration at energy Under, it may occur that the combination of some misfortune.Therefore, Oscillation Amplitude can become very large and acutely.

In one embodiment, the shape of cross section of strake is asymmetric, and other embodiment party In formula, the shape of cross section of strake is symmetrical.

According to second aspect, the invention provides a kind of for carrying at least one of of structural detail Tension element (tension element), described tension element includes cable and at least one strake, institute State cable limit outer surface, at least one strake described formed on described outer surface jut with In reducing the vibration that wind and rain causes, wherein, the height of described strake is coupled to the outer surface of cable The strake end distance that strake root and strake terminate outwardly away from cable, described strake has Width transverse to described height, described width from strake root towards on the direction of strake end by The least, wherein, described height less than cable diameter 5%, and wherein, described strake bag Including the first strake surface portion deviating from cable, described first strake surface portion is recessed or pen Straight.

According to the second aspect of the invention, tension element can include according to the first aspect of the invention Feature and/or the combination in any of element.

According to the third aspect, the invention provides a kind of for reducing the vibration caused in cable by wind and rain Method, at least some of weight of structural detail in described cable carrying structural texture, described side Method comprises the following steps:

-at least one strake with at least two surface portion is provided, the first strake surface portion is Recessed or straight；And

-outer surface of the second strake surface portion and cable is connected so that described first strake surface Part deviates from cable.

It should be understood that the method for reducing the vibration that wind and rain causes can with according to the invention described above The structural texture of first aspect combines use, and can be with the second aspect according to the invention described above Tension element combines use.Therefore, a third aspect of the present invention is used for reducing wind and rain to cause The method of vibration, the feature of a first aspect of the present invention and second aspect can be suitable for.

Accompanying drawing explanation

Will now further be described with reference to the drawings embodiments of the present invention, in the accompanying drawings:

Fig. 1 discloses cable according to the first embodiment of the invention；

Fig. 2 discloses the cross section of the cable of Fig. 1；

Fig. 3 discloses the cross section of the strake of the first embodiment；

Fig. 4 discloses cable second embodiment of the invention；

Fig. 5 discloses the cross section of the cable of Fig. 4；

Fig. 6 discloses the cross section of the strake of the second embodiment；

Fig. 7 discloses the cross section of the 3rd embodiment；And

Fig. 8 discloses the cross section of the 4th embodiment.

Detailed description of the invention

It should be understood that the detailed description by providing the most by way of illustration and particular instance, for For those skilled in the art, variations and modifications within the spirit and scope of the present invention are aobvious And be clear to.

Fig. 1 discloses the cable 100 limiting outer surface 102.In the embodiment of diagram, online Sheath (see Fig. 2) is provided on cable, and this sheath limits the outer surface 102 of cable.Outside cable Multiple strake 104 is provided on surface 102.Each strake is at the longitudinal direction transverse to cable 100 Side upwardly extends.In FIG, each strake 104 is on the direction vertical with the longitudinal direction of cable Extend.And, each strake 104 can be only around the part extension of the periphery of cable so that each Strake only covers 1/6th of periphery.Strake is collectively forming helicon mode around cable (pattern, pattern, pattern).It being understood that in FIG, provide row with two helicon mode Plate 104.Cable limits and extends through two strakes (each respectively every from the two helicon mode Individual) multiple first cross sections 103 (being illustrated by the broken lines) and not extend through any strake many Individual second cross section 105 (being represented by chain-dotted line).Any two in same-handed pattern is adjacent Strake is overlapping and at a distance of the most predetermined distance, and in the figure, the adjacent strake of any two is at a distance of 25 Millimeter.In the embodiment of Fig. 1 to 3, the length of each strake is 100mm.And, from In figure it can be seen that the end of each strake is relative in the radially extending of cable and extend through The line of the end of strake limits the inclination angle of 45 degree.Provide the inclined plane of strake so that cable Resistance reduces.

And, in the embodiment of Fig. 1 to 3, each helicon mode is relative to the longitudinal direction side of cable To pitch angle (pitch angle, helical angle) be 60 degree.

Fig. 2 discloses the cross section of the cable corresponding with section A-A in FIG.In the figure, Can see that sheath 106.Inside sheath 106, cable is set.It can be seen in the drawing that it is each Strake 104 does not extend around the whole outer surface 102 of sheath 106.

Can see that the cross section of a strake 104 is (with section B-B in fig. 2 in figure 3 Corresponding).Concave shape surface 108 is defined from figure it is understood that on the both sides of strake 104. Concave shape surface is towards contrary direction and near strake root 110, and linear segment 111 is close Strake end 112.Linear segment 111 limits linear side surface 113.Therefore, the two radial side Each restriction concave shape surface 108 in surface and linear side surface 111.Embodiment at Fig. 3 In, end surfaces 114 is the most flat.But, in other embodiments, end surfaces can be Circular or sharp-pointed.

Fig. 4 to 6 discloses the second embodiment of cable, wherein, provides two in helicon mode Strake 104.Therefore, at the first embodiment and second embodiment of Fig. 4 to 6 of Fig. 1 to 3 Between a difference be, provide a large amount of strake 104 in the first embodiment, and second Embodiment is provided solely for two strakes 104.The two strake of the second embodiment is along appearance Face extends, and therefore, longer than the periphery of cable 100 or diameter group the twice of the two strake is the longest.

It is understood that at the sheath of cable from the Fig. 5 of the cross section, A-A disclosing Fig. 1 Two strakes 104 are merely provided on 106.Although there is different orientations, but Fig. 6 and Fig. 2 Disclose the same cross-sectional shape of strake 104, therefore, it is possible to reference to the description of Fig. 3.

Fig. 7 and Fig. 8 discloses two cross sections of strake 104.In both cases, strake 104 displays fix/are formed on straight surface, it is to be appreciated, however, that major part cable has circle The surface of shape.

First, the shape of discussion strake 104 in the figure 7, (these dotted lines disclose to ignore dotted line The shape replaced).Strake 104 includes concave shape part 116 and transition portion 118.Concave shape part Closer to strake end 112, and transition portion 118 is closer to strake root 110.Strake limits Two radial side face 120, each radial side face is by linear side surface 113, concave shape surface 108 and transitional surface 122 (being linear in the drawings) limit.Strake is from being limited to outer surface 102 On contact point 124 start extend.Strake end 114 in the embodiment of Fig. 7 is plane.

When water flows along outer surface 102, arrow 126 represent, water initial flow and and transition Surface 122 contacts, and flows along concave shape surface 108 further up, subsequently, linearly Flow on surface 113, and finally leave strake.Comprise any water droplet on the outer surface along this A little Surface runoff, and due to concave shape surface, so forcing water droplet away from the outer surface 102 of strake. It being understood that if transitional surface is to tilt (by the transition table tilted relative to outer surface 102 Face 122 ' represent), water droplet is guided on concave shape surface 108, rather than by with outer surface 102 The upwardly extending transitional surface in vertical side 122 stops.And, have and assemble on flat afterbody 114 The risk of water droplet, therefore, afterbody is the most sharp-pointed, and the risk of this gathering water is the lowest.An enforcement In mode, end is as by sharp-pointed represented by dotted line 128.

Fig. 8 discloses an alternative, and wherein, strake 104 has triangular cross section.Therefore, Do not limit transition portion 118 and concave shape part 108.Linear side surface 113 is transverse to outer surface The side of 102 upwardly extends, and not parallel with the normal 130 limited on the outer surface 102 of cable. It being understood that when cable is for time circular, and this normal 130 is in the extension in the radial direction of cable.

Concave shape surface can be defined for guiding on strake 104 drop.It being understood that this Plant concave shape surface 108 and play the effect on inclined-plane.

In fig. 8, strake limits end 132, but, in other embodiments, can limit flat End face or concave shape end face 114 ', as by represented by dotted line 114 '.

Embodiment

Embodiment 1: a kind of cable limiting outer surface or drag-line, described outer surface provides to A few strake, wherein, described strake limits jut, described jut from be positioned at cable or The strake root of the proximity of drag-line starts to extend towards strake end, and the width of described strake exists It is gradually reduced towards the direction of strake end from strake root.

Embodiment 2: according to cable or the drag-line of embodiment 1, wherein, described strake transversal Face shape limits triangle or trapezoidal.

Embodiment 3: according to cable or the drag-line of embodiment 1 or 2, wherein, described strake limits At least one concave shape surface fixed.

Embodiment 4: according to the cable any one of aforementioned embodiments or drag-line, wherein, described At least one strake is arranged to be used for so that water is deviateed by wind from the outer surface of cable or drag-line.

Embodiment 5: according to the cable any one of aforementioned embodiments or drag-line, wherein, described Concave shape surface limits at least one is put and overlaps with the tangent line of described cable or the outer surface of drag-line Tangent line.

Embodiment 6: according to the cable any one of aforementioned embodiments or drag-line, wherein, each Strake includes two concave shape surfaces, and said two concave shape surface configuration is in the contrary side of strake On.

Embodiment 7: according to cable or the drag-line of embodiment 6, wherein, said two concave shape Surface is away from each other.

Embodiment 8: according to the cable any one of aforementioned embodiments or drag-line, wherein, each Strake is longer than the periphery of described cable or drag-line.

Embodiment 9: according to the cable any one of aforementioned embodiments or drag-line, wherein, each Strake limits the helix of the outer surface extension along cable or drag-line.

Embodiment 10: according to the cable any one of aforementioned embodiments or drag-line, wherein, institute State cable or drag-line is suitable for supporting bridge.

Embodiment 11: according to the cable any one of aforementioned embodiments or drag-line, wherein, institute Stating cable or drag-line includes at least one rope of being contained in sheath, described sheath limits cable or draws The outer surface of rope.

Embodiment 12: according to the cable any one of aforementioned embodiments or drag-line, wherein, institute The shape of cross section stating strake is asymmetric.

Embodiment 13: according to the cable any one of aforementioned embodiments or drag-line, wherein, institute The outer surface stating cable or drag-line is substantially smooth.

Embodiment 14: a kind of be used in according in the cable any one of aforementioned embodiments or drag-line Strake.

Embodiment 15: a kind of cable limiting outer surface or drag-line, is arranged on described outer surface At least one strake, wherein, described strake limits jut, and described jut is online from arranging The strake root of the proximity of cable or drag-line starts to extend towards strake end, wherein, and described row The shape of cross section of plate is substantially rectangular cross-sectional configuration, and wherein, the radial extension of described strake is less than institute State cable diameter 5%.

Claims (12)

1. include that a structural texture for structural detail and at least one cable, described cable are set to Bear the tension force at least some of weight with the described structural detail of carrying, outside described cable limits Surface, at least one strake forms jut for reducing wind and rain on described outer surface The vibration caused, wherein, the height of described strake is coupled to the described appearance of described cable The strake root in face and described strake away from described cable the strake end that terminates outwardly it Between distance, the width that described strake has is transverse to described height, and described width is from institute Stating strake root to reduce on the direction of described strake end, wherein, described height is less than The 5% of the diameter of described cable, and wherein, described strake includes deviate from described cable One strake surface portion, that described first strake surface portion is concave-like or straight, And wherein, described first strake surface portion extends to described strake from described strake root End is to provide inclined-plane, and described inclined-plane is for making thread vertical along the described outer surface of described cable To flowing.

Structural texture the most according to claim 1, wherein, the cross sectional shape of described strake limits Triangle or trapezoidal.

Structural texture the most according to claim 1 and 2, wherein, described first strake surface element Point it is concave-like, and limits and the described outer surface of described cable at least one point Tangent line overlap tangent line.

Structural texture the most according to claim 1, wherein, described strake includes two concave shapes Described first strake surface portion.

Structural texture the most according to claim 3, wherein, described strake includes two concave shapes Described first strake surface portion.

Structural texture the most according to claim 5, wherein, described the of said two concave shape One strake surface portion is away from one another.

Structural texture the most according to claim 1, wherein, at least one strake ratio described is described The girth of cable is the longest.

Structural texture the most according to claim 6, wherein, at least one strake ratio described is described The girth of cable is the longest.

Structural texture the most according to claim 1, wherein, at least one strake described limits edge The helix that the described outer surface of described cable extends.

Structural texture the most according to claim 8, wherein, at least one strake described limits edge The helix that the described outer surface of described cable extends.

11. 1 kinds for carrying at least one of tension element of structural detail, described tension element bag Vinculum cable and at least one strake, described cable limits outer surface, at least one strake described Described outer surface is formed the vibration that jut causes with minimizing wind and rain, wherein, described The height of strake is coupled to the strake root of the described outer surface of described cable and described strake Away from the distance between described cable the strake end that terminates outwardly, described strake has Width transverse to described height, described width from described strake root towards described strake Reducing on the direction of end, wherein, described height is less than the 5% of the diameter of described cable, and And wherein, described strake includes the first strake surface portion deviating from described cable, described That one strake surface portion is concave-like or straight, and wherein, described first strake Surface portion extends to described strake end to provide inclined-plane from described strake root, described tiltedly Face is for making thread along the described outer surface longitudinal flow of described cable.

12. 1 kinds for the method reducing the vibration caused in cable by wind and rain, described cable carrying structure At least some of weight of the structural detail in structure, said method comprising the steps of:

-provide and there is at least the first strake surface portion and the second strake surface portion at least One strake is wherein, that described first strake surface portion is concave-like or straight；

-be set to extend to strake end from strake root by described first strake surface portion Thus inclined-plane is provided, described inclined-plane is for making thread longitudinal along the described outer surface of described cable Flowing, and

-described second strake surface portion is connected to the outer surface of described cable so that institute State the first strake surface portion and deviate from described cable.