CN1161393A

CN1161393A - Suspension device for civil engineering construction and method of construction

Info

Publication number: CN1161393A
Application number: CN 97101083
Authority: CN
Inventors: 热罗姆·斯图伯勒
Original assignee: Freyssinet International STUP SA
Current assignee: Freyssinet International STUP SA
Priority date: 1996-02-06
Filing date: 1997-02-05
Publication date: 1997-10-08

Abstract

The invention relates to a suspension device for civil engineering architecture, which comprises a steel rope which is made of a plurality of overlapped stranded wires 7 that are horizontally arranged in parallel; some suspension rods that are connected with the steel rope by clamp tubes 6 and pass building load to the steel rope; a lamination sheet 11 inserted into the position between laminations that at least two stranded wires of the steel rope is suspend in each clamp tube, wherein the lamination sheet alternately forms convex ribs on two surfaces by parallel partition strips 12 that are triangle with arc-shaped edge, the partition strips can fill in the gap T between laminations.

Description

The suspension apparatus and the job practices that are used for civil engineering construction

The present invention relates to include the civil engineering construction of the sub-component that is suspended to the cable wire that supported by bridge pier or similar item or tie rod, each sub-component links to each other with described cable wire or tie rod by the suspension rod that is connected on the clamp.

In the occasion that the present invention is specifically related to, cable wire is by laterally forming side by side with mutually stacked many of each interlayer of kind are stranded, indication " twisted wire " is said for simplification herein, and do not mean that it is limited to some extent, it both can represent various long fibres or multi cord itself, also can represent this class strand bundle or cable, even can refer to bar strip.

More specifically, the present invention relates to the suspension apparatus for building of the type of discussing and the construction techniques of these devices.

In the production method to described member known to us, every twisted wire has whole cylinder form, is that the long and narrow or even rectilinear vertical district along these twisted wires is in contact with one another between each twisted wire.

By each suspension rod, more specifically say so by the clamp that is configured in the suspension rod top, act on the transverse load on the cable wire, just be delivered on another twisted wire along above-mentioned zone from this twisted wire, the distribution of load is uneven, particularly when the material of these contacts site have certain flexibility occasion-such as protecting the twisted wire sheath certainly, this uneven distribution is then more remarkable.

The result is the stress distribution of described loading on described twisted wire and inhomogeneous, some twisted wire thereby can form to a certain degree overload wherein, this just requires to strengthen the overall dimension of cable wire, and the expense cost of the building of certain this cable wire and use cable wire will increase.

759, suggestion is inserted a kind of filling sheet at the overlapped interlayer position that is positioned at the clamp twisted wire in No. 490 Deutsche Bundespatents, the overall shape of this filling sheet is inverted T-shaped, its crossbeam is as preventing that clamp is along the mobile backstop of suspention cable wire (or suspension cable), the montant width of this T shape part is identical with interlayer width between each twisted wire that it inserts, thereby the function of filling sheet provides additional frictional contact surface further makes the grappling of clamp on the suspention cable wire obtain reinforcing, so not merely result from total frictional resistance that this anchoring structure provided between the outer peripheral face of the inner surface of clamp and cable wire, also result between each twisted wire layer and the filling sheet, the result is subjected to very big tensile stress on the sheet and can not plays the effect that makes its homogenising to the working stress that acts on each twisted wire in the clamp in filling.

It is comparatively even that one object of the present invention is to realize making the distribution of load on each twisted wire on the suspension rod clamp.

Thereby the present invention has proposed a kind of suspension apparatus that is used for civil engineering construction, this suspension apparatus comprises: a suspention cable wire, this cable wire is laterally to constitute the suspension rod that some are connected with this cable wire by clamp side by side with many twisted wire edges by the overlapping distribution of interlayer, and suspension rod can be given described cable wire the loading transfer of building; Position in the suspention cable wire of a kind of interlayer sheet insertion in each clamp between at least two twisted wire overlapping layers of twisted wire, wherein the interlayer sheet becomes prominent rib by the parallel separation tape dissected terrain of curved triangle edge on two surface, and these dividing strips can fill up the space of described interlayer.

In most preferred embodiment, also further adopted following this/or other measure:

In the structure that the sheath of being made by flexible material constitutes around each twisted wire, the interlayer sheet is by making with this sheath identical materials or material with same rigidity;

By the flexible material described in the top paragraph is high density polyethylene (HDPE) or polyolefin;

The thin portion of interlayer sheet between each prominent rib does very thinly, its thickness is 0.1mm magnitude even thinner;

About the manufacture method problem of interlayer sheet, the interlayer sheet preferably constitutes by laxative remedy:

Can form a monolithic with extruding (going out) method;

Also available extrusion forms every tape that all has the arc triangle edge, and the two sides that these tapes are bonded in a thin slice or one group of parallel strip is staggered then.

About the problem of sheet between mounting layer how in cable wire, preferably install by following flow process:

Before the predetermined installation position that clamp is contained on the cable wire, make between each overlapping layer of twisted wire of this position cable wire, separate in couples successively, flatly insert the shim that a slice has enough surface areas in the free space between each separated in succession open two-layer then, then make the described two-layer recovery of vertically returning mutually, the prominent rib of thin slice fills up the space of interlayer like this, after all bedding voids have all been filled up with shim again the suspention clamp be contained in by on the cable wire predetermined position that installs of method.

To consult accompanying drawing to example of the present invention now and be described, these examples only are as nonrestrictive example.

Fig. 1 roughly represents to use of the present invention one outstanding (rope) bridge;

Fig. 2 illustrates and is contained in a partial section of pressing suspension apparatus of the present invention in above-mentioned outstanding (rope) bridge;

Fig. 3 illustrates the details of this section parts with scaling up;

Fig. 4 and Fig. 5 illustrate two kinds of approach that form shim with ribbing by the present invention;

Fig. 6 illustrates in two kinds of shims first kind the phantom drawing that blocks;

Fig. 7 illustrates a step by above-mentioned suspension apparatus manufacture method of the present invention with the unusual form of summary.

The bridge that summary is represented in Fig. 1 includes: a suspention cable wire 1 by 2 supports of two bridge piers and extension between two anchor piers 3; One by suspension rod 5 be suspended to the suspention cable wire 1 bridge floor 4.

These suspension rods 5 are connected with cable wire by clamp 6, and suspension rod both can vertically extend shown in Fig. 1 left side, also can the rectangular direction extension of cable wire relatively shown in Fig. 1 right side.

Cable wire 1 is made of one group of independent twisted wire 7, each twisted wire distributes and forms one group of vertically superposed layer, each layer comprises the juxtaposed twisted wire of different number levels, the number of twisted wire for example can be from outermost three to the intermediate layer ten or 15, even it is more, global sections as cable wire is shaped as circle, and this is the most common shape, and Ceng number is the same order of magnitude with the twisted wire number that constitutes the intermediate layer so.

When twisted wire is promptly to adjoin contact mutually by overlapping naturally, the staggered shape of twisted wire 7 formation automatically in place so, this can see too clearly in Fig. 2 and Fig. 3, and the basal plane of every twisted wire automatically enters in the groove of the top formation between two levels of its lower floor twisted wire arranged side by side.

Between three twisted wires being discussed, more in a broad sense between all any three twisted wires that adjoin each other, the T shape gap that forms has and is roughly a prismatoidal shape, its cross section is defined by the triangle on an arc limit, more specifically, this triangular cross section is defined by three same radiuses, circular arc tangent to each other in twos, and the convex surface on arc limit is towards the triangle inboard.

Every twisted wire 7 is preferably from protection type, and it is to be contained in twisting single line (fiber) the 8 (see figure 3)s formation in the sheath 9 and to be inserted a kind of protection thing 10 such as epoxy resin, wax or grease between sheath and twisted wire by an assembling in other words.

Sheath 9 is normally by a kind of incompressible but material that have a flexibility (or elasticity) to a certain degree constitutes this class material such as high density polyethylene (HDPE) (HDPE) or polyolefin etc.

So each root twisted wire 7 is very narrow along vertical edge of twisted wires, in theory or even the regional P of wire be in contact with one another.

Therefore each gap T is defined by three positions of sheath 9, each position between two in succession regional P along horizontal expansion.

In some currently known examples, gap T is empty, only passes to each twisted wire 7 that constitutes cable wire at regional P by suspension rod 5 by the load C that clamp 6 acts on the cable wire.

Because the part of the sheath 9 of delimited area P has certain elasticity, local uncontrollable breaking may take place in question loading transfer, and this is owing to each twisted wire 7 upper stress skewness causes.

The present invention fills up gap T by predetermined each position that is centered on by clamp 6 on cable wire 1 and overcomes above-mentioned shortcoming.

The realization of this placement method realizes that by utilizing charges in fact the volume of charges has compensated the space that need fill up.

Yet these charges are not to be made of the little bar corresponding to each external series gap simply, because it is very difficult that this little bar is installed.

Charges of the present invention are to be interlocked by the tape that plate 11 constitutes 12 with the parallel tape 12 that is the fin shape to stretch out from two surfaces of plate (or alternately), each tape has the shape of a gap T, that is to say to have the prismatic shape, its basal plane is to be defined by an arc limit shape triangle.

The mutual separation of two gap T in the linking part 13 of each plate 11 that two prominent ribs that adjoin or tape 12 are coupled together, its width and cable wire 1 is corresponding.

Each linking part may be extremely thin, and for example its thickness can be the 0.1mm order of magnitude even thinner, and the tensile strength that draws so thin plastic sheet from practical experience is very suitable, required adhesion when it can guarantee to use for a kind of like this thin slice.

The plate of being discussed preferably adopts with sheath 9 identical materials and makes, but the material that also available different materials needs only and the system sheath is used is suitable.

Plate 11 can be with any suitable method production, for example:

Available extrusion is made a monolithic;

Or be pre-formed prismatic tape 12, subsequently these tapes alternately are fixed on (see figure 5) on two surfaces of an independent plate 11, this plate can be made up of one group of parallel strip, particularly available bonding method is bonded in these tapes on these two surfaces, is envisioned that these parts can be bonding voluntarily.

Have profile (see figure 6) on the plate macroscopic view of above-mentioned acquisition, and can flatten by calendering at the scene when needing and obtain with the raceway shape roller shutter or the louvre of parallel tape.

No matter tape is to make integral body with plate 11 or be connected on the plate, for the manufacturing that makes tape 12 is simplified and is made its enhancing, its top A can excise, can make the top have a very little thickness like this, the quantity of 1mm of for example saying so is received, shown in the A ' position of Fig. 5, though this thickness should be zero theoretically.

For the inner surface of guaranteeing each clamp 6 with between the excircle of the cable wire 1 at position that this clamp holds good Continuous Contact is arranged, be preferably in a sleeve pipe 14 is set between described surface and the described position, for example available high density polyethylene (HDPE) manufacturing of the material of this sleeve pipe; With an interlayer 15 is set, the material of making this interlayer is more yielding and the good pressure resistance energy can be provided than the material of sleeve pipe, such as with the manufacturing of neoprene (diene) rubber, the setting of this interlayer preferably abuts on the inner face of sleeve pipe.

The sort of shim described above of packing between the twisted wire of cable wire is quite easy.

What need do for this purpose is at the twisted wire layer position of being scheduled to by clamp centered on, the twisted wire layer is separated, for example can utilize the metal bar of top rounding to implement, the top rounding is for fear of the risk that sheath 9 damaged take place.

One has the prominent rib shim 11 of enough big band to enter each along arrow F direction among Fig. 7 from horizontal sliding to have set up the space E of the method for stating between the overlapping layers that twisted wire 7 is freely separated subsequently, SC is wanted in terminal stage in this operation, make the top tip part A of tape 12 vertically face the depression that its expection is inserted.

Outer outstanding part shim 11 is excised at the S position subsequently.

Finished the twisted wire layer of filling and vertically retracted, just be held motionless so each interlayer fills up the shim with ribbing of gap T.

After all gap T are finished by filling, put clamp 6 around this position that has been filled with of cable wire, clamp 6 is fixed on the corresponding suspension rod 5, because the gap is filled, just can transmit and realize evenly distribution well by the lateral stress that load C forms between each root twisted wire 7.

Self-evident, above-mentioned all situations comprise range of application of the present invention and certain embodiments, and do not mean that the present invention is made any restriction, in contrast, it comprises all various versions of promoting thus, will mention especially for example suspending cable wire in midair and can being made of non-perpendicular suspension rod.

Claims

1. be used for the suspension apparatus of civil engineering construction, it includes: a suspention cable wire (or suspension cable) (1), this cable wire are along laterally constituting side by side with many twisted wires by the overlapping distribution of interlayer (7); The suspension rod (5) that some are connected with described cable wire (1) by clamp (6), suspension rod can pass to described cable wire to the load of building (C); A kind of insertion is positioned at the interlayer sheet (11) at position between the overlapping layer of at least two twisted wires (7) of suspention cable wire of each clamp (6), it is characterized in that: interlayer sheet (11) forms prominent rib alternately by the parallel separation tape (12) of curved triangle edge on two surface, these dividing strips energy (contact) fill up the space (T) of described interlayer.

2. all held by a sheath (9) of being made by flexible material by every twisted wire (7) in the suspension apparatus for building of claim 1, it is characterized in that: interlayer sheet (11) is to use with described sheath identical materials to make.

3. by the suspension apparatus of claim 2, it is characterized in that: described flexible material is high density polyethylene (HDPE) or polyolefin.

4. by each suspension apparatus of above claim, it is characterized in that: the thin portion (13) between the prominent rib (12) of interlayer sheet (11) is very thin, and its thickness is the 0.1mm order of magnitude, even thinner.

5. by the shim with ribbing (or interlayer sheet) (11) in each the suspension apparatus in the above claim, it is characterized in that: shim comprises alternately prominent rib or the band (12) that stretches out from its two surface (or staggered), the global shape of tape is prismatic, its basal plane is defined by the triangle on an arc limit, and described tape can fill up the space (7) between the many juxtaposed twisted wires (7) in the cable wire (1) of suspension apparatus.

6. by the manufacture method of shim with ribbing in the claim 5, it is characterized in that: every tape (12) forms one whole by extruding.

7. by the manufacture method of shim with ribbing in the claim 5, it is characterized in that: every tape (12) that is formed by extruding all has the profile of an arc triangle edge, and feature is that also described tape is bonded on two surfaces of a thin slice alternately.

8. the method for shim with ribbing is installed by claim 5, it is characterized in that following a series of operation:

Before the predetermined installation position that a clamp (6) is contained on the cable wire (1), make between each overlapping layer of twisted wire (7) of described position cable wire and separate in couples successively, flatly insert the shim (11) that a slice has enough surface areas in the free space (E) of separated two interlayers of opening of adjoining land at each then, then make the described two-layer recovery of vertically returning, the prominent rib (12) of shim is inserted the space (T) of these interlayers like this, suspention clamp (6) is contained on the position that cable wire (1) installed by last method after all bedding voids are all filled up in this way again.