DE1408047A1 - Composite anchoring for manhole linings, in particular of mining shafts - Google Patents

Description

GinBiOFFNLINGSHÜTTS

STERKRADE AKTlEfiOESELLSCHAFTStlchwüT ^: »Anchorage

Ga / pa pass /BJbIa.* 13.8.1958

1559 (1516)

Dl Expl. J

Composite arrangement for manhole lining rings, especially of mining shafts.

Susatz zu / Patent (Patent application G 23.381 Yl / 5c)

:? Invention "relates to a bonded anchor for. from at least one sheet steel cylinder and an adjoining Botorur.antel existing 'Shaft linings, especially those of mining pörderschächterj. According to the main patent (the "" euptoHi.ialdung) made of l? Laeheisen are bow-shaped gebogsns -inker and in comparison small, Planar sheets that are perpendicular to the Connection seams 3v; ischen the A-ik-; rbigeln and the steel sheet ayliiT'ier and with both are accidentally.

Such Verbu.iiv ^ ranltcrung is more effective, the better the .irikorbli · * '' :! an up and /.breissen the Betoiiacft ⁴ n'c.t due to F-ugbeanspruchungen able to verhindei'n. Oezu iaüssen They ^{may also lie 7} deformities in order to put these brackets over them at once, while cracks in the concrete running parallel to their front sides are of much less use.

Puvi a;: t shown daijs in eiriam Schachtaus-r ba-j: T: Γη'ί on rs direction in general compressive stresses are exemplary. As a result of this v.-ird au (^ der in this direction from the main

Li ^ irhauL.t not or only insignificantly

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stressed in tension, ao that with vertical crack * n is hardly to be expected. On the other hand, tension stresses often occur in the longitudinal direction, especially at den «by dismantling the ochachtsicherheitapfeilerej conditional relationships. This can mainly result in horizontal cracks in the concrete shell.

Accordingly ε »the invention consists in the des bow-shaped bracts in vertical planes are arranged and the connecting seams between their parallel legs and the (inner) sheet steel cylinder run horizontally. With such an arrangement are shear forces resulting from the tensile stresses across the surface of the horizontal legs the anchor bracket is directed so that its clamp effect, can be fully exploited.

It is particularly useful to arrange the anchor brackets in mutually offset rows. Included know the. in the circumferential direction of the (inner) otahlblechzylinders adjacent vertical rows of anchor brackets around the bow span of the same be mutually offset so that their upper and lower legs are alternately on approximately the same level High lying.

-Other details, such as the advantageous arrangement of the, in support of the connection Plates provided between the anchor brackets and the sheet steel cylinder as well as other supplementary ones Anchoring elements are from the description below one on the drawing for example 'shown embodiment can be seen »

KgI l ^x and 'Pig. 2 show a developed circumferential section of a shot of a sheet steel

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BAD ORIGWAL

Cylinder 1 -or- a corresponding cross-section through -two already installed sheet steel cylinders l, / - 2.f of a S cha oh tau ski ei dung with -the 'associated bond requirement for the intermediate concrete shell 3. ■. ■■ _ _:.

The anchoring consists essentially of. U-shaped bent! Flat sheets 4ν ä ± ® so are arranged so that their end faces are in vertical planes and their parallel legs are one above the other lie in horizontal planes. These anchor brackets are attached to the concrete shell facing side of the or a sheet steel cylinder arranged, in the present case thus · an the outside of the inner sheet steel cylinder 1 .. 'oiesiri over the entire cylinder surface so. verr ■ that perpendicular rows indicate the span of the individual stirrups corresponding distances a of the same, s-e are formed and those in the circumferential direction adjacent rows are offset from one another by this' measure. The lateral distances b of the rows are also under each other same; the lateral distance between the two. ! Lance weld seam 5 between the segments of the Sheet steel cylinder section-adjacent rows of stirrups is preferably b / 2 each.

The small, flat metal sheets 6 in the area of the weld seam connection 7 between the two Legs of an anchor bracket 4. and the steel sheet cylinder 1 are, as especially from the enlarged partial representations according to Pig. 3 and Pig. 4 .proceeds, in front of the end faces of the hangers - kel arranged transversely to them. ^ They are both with the 'uiker as well as with the StahlblebhzyTinder welds up. This results in a particularly favorable H-shaped. Gresamtqueraphnitt: .for., Each These connections, the sheets 6 except the

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Reinforcement of the anchor connection against radial tensile forces serve in particular to absorb tangential shear forces «-

Since the Bügely anchoring is expedient already over Days attached to the segments of the individual steel cylinders, no brackets can go over ring weld seams between two superimposed welds that are only made within the manhole Hand over cylinder shots. As a result-

'which is alternately above and below each vertical row of anchor brackets .4 with the same height spacing a, a different anchor 8 is also provided. These anchors exist according to FIG. 5 and FIG. 45 made of rectangular, flat metal sheets with approximately the same thickness, width and height like the anchor brackets 4 * at their ^ with the cylinder connected end are also the same, correspondingly arranged sheets 6 for pulling and Thrust lock while at its other end a cross plate 9 and two supporting bracket plates for better bonding with the concrete

. 10 are welded on.

Further is near the upper end. inner cylinder shot! a number of flat iron anchors 11 according to Fig.7 and Fig. 8 arranged, which on the other Er; de with the opposite outer ^ ylinderschuss are connected. These anchors 11 are only assembled after the cylinder blocks are set down in the shaft with the. also here again to the train and '. Shear protection provided-sheets 6-attached and serve to create a uniform distance everywhere and a sufficient connection between the inner and outer steel cylinder. ■ ■.

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ORlGiNAL

14UÖU4 /

The dimensioning of the perpendicular distances a between the JSnkerbügeln 4 of a row and the horizontal distances b between their adjacent rows takes place according to the given circumstances. These distances can as well as the dimensions the anchor bracket and other anchoring elements in different depth areas of different sizes in order to achieve the best possible composite effect with the least amount of effort.

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Claims (3)

■ \ Keyword; "Stirrup anchor Öberhausen / RhId., August 13, 1958 Claims x 1 · Bonded anchorage for. From at least one Sheet steel cylinder and an adjacent concrete casing existing manhole linings, in particular of mining shafts where, according to the patent ... ... (Patent application Qe 23.381 VE / 5c) bow-shaped anchors made of flat sheet metal and at the connecting ends of their legs transversely to the connecting seams of the same comparatively small, flat metal sheets are provided for the additional absorption of tensile and shear forces, characterized in that the bow-shaped anchor plates (4) are arranged in vertical planes and the connecting seams (7) between their parallel legs and the (inner) sheet steel cylinder (1) run horizontally 2. Composite anchorage according to claim 1, characterized in that the anchor brackets (4) are arranged in mutually offset rows. ■ _, .--. 3. Composite anchorage according to claim 2, characterized in that the circumferential direction .dee (inner) .steel cylinder (l) adjacent vertical rows of anchor brackets (4) around the bracket span (a) of the same '■ -τ- i ^ 909811/0021 - are offset from each other and thus theirs upper and lower legs lie alternately at approximately the same height. Composite anchorage according to claim 1, characterized in that that the plates (6) used for the additional absorption of tensile and shear forces in front of both ends of the anchor bracket legs ^ are arranged and thus an H-formigei * G-eBamt cross-section of each of these connections is formed. '. · Composite anchor unit according to Claim 2, characterized marked that at the ends of each sheet steel cylinder section In addition, other anchoring elements are arranged, which preferably also consist of flat sheets (8, 11) and provided with corresponding locking plates (6) in the area of their connecting seams are.. 9 0 9 8 11/0021