DE1434341A1 - Device for installing and removing structures - Google Patents

Description

17 »1 * 1966 re . L 5? 42 Bfatt

Dr.Ing. E.h Dipl.Ing.

Emil Mauritz Hünnebeok

KLamm Castle / Post Obsteig-Tirol

Austria

" Device for installing and removing gas works"

The invention relates to a device for installing and dismantling structures in beams or arches in particular of structures consisting of several assemblable structural elements with and without undervoltage * such as bridges, collapsible halls, scaffolding or the like consisting of at least one multi-part end member, its one end on the upper chord and its other end, which carries a spherical support piece a support plate is supported, with respect to the supporting structure in the vertical supporting structure plane between the pivotable upper part has a bearing position at these support points the one adjustable in length, fixed to the lower chord of the structure- | laid lower part connected 1st. Devices of this Type are known (see printed copy 1)

The known end member, which is intended as an EndabstUtzung for formwork girders, has two to the girder ends Lever-like acting on the side surfaces of the carrier Frofileisen, which are anchored on the lower edge or on the lower chord of the girder and at their girder-side ends by means of a connecting link resting on the upper part are connected.

809810/0686 ⁸ AD orisinal

SlpL-fctg. üefaz lesser, PuienicnwaSt Λ 1 434341

Schaben «on» 17 · 1.1966 regarding L $ E & 5742 sheet f

The anchors of the profile iron are hinged to them and allow a change in altitude of the structural support, e.g. by adjusting clamping nuts or by inserting wooden blocks between the clamping nuts and the lower edge of the girder, the free ones Ends of the profile iron are like roller bearings on their underside educated. The support for the Endabsung of the Formwork support consists of a profile iron section, e.g. angle or T-iron section, its on the masonry or the like resting leg forms the support plate and its standing leg has recesses, through which the free ends of the profile iron attached to the formwork support reach.

Since each anchor has a hole in the lower chord of the formwork girder and, if necessary, a hole in each of the underlay milsers goes through, with the clamping nut resting against the underside of the lowermost formwork support part the anchors constantly maintain their position of extension, so also then., if the position of the profile iron opposite the anchors changes »and each anchor can only be subjected to tension will. Because of this, it is not possible to get this off End section to be used if the arch-shaped crimped armor are to be supported because in In this case, the anchor must absorb compressive forces. In addition comes that ^ every link connecting two profile irons In the loaded to & and of the formwork girder on the top of the top chord of the formwork beam acts and this has a recess where the connecting link comes to rest must, because otherwise the connecting link would be the laying on of shuttering boards prevented in its effective range.

There are also known end members of structures in which to achieve an adjustable length support end link parts inserted into the upper chambers tmö Ib of various lengths

8ÖS810 / Q686

DIpL-htg. Hdu Lmmt, patent attorney 3 Sdirwbw from January 17, 1966 *> * t. L 5742

can be set. Usually these are also connected to the lower chord of the supporting structure by an inclined rod each, which can also be length-adjustable (See referenced publications under 2). However, these end links do not allow an accurate one Leveling the structure or causing difficulties when lowering under load, for example if a Scaffolding is to be dismantled or moved.

Further, the end members od for formwork support. Like. Withdrawn loading Λ, each consisting arranged in a Dräeck upper belt tension and compression rods, the upper end of the Drueksta- ■ bes triggered blunt at the top flange of the formwork support and the lower end of this Pressure rod is hinged to the lower chord of the Sehalung girder via a turnbuckle. A continuous lowering of the entire structural beam with the help of this turnbuckle is not possible, since the compression rod of the triangular end link is butt connected to the upper chord of the structural beam - quite apart from the fact that a small end link is relatively expensive, because it consists of four parts (see referenced publications under J5)

Since scaffolding for reinforced concrete structures is elastically bent when a load is applied, this is the case with later expansion It is necessary to first lower the supporting structures so that they are free of tension, i.e. the elastic deflection must be reversed, because otherwise the structure cannot be expanded. With known structures (referenced publications under 4) this is done by operating a large number of turnbuckles. For the next one

BAD ORISINAL

809810/0686

DlpUny. Heinx l * n «r, patent attorney ψ

17.1.1966 b _3tf . L 5742 ^ L

v _Om

Use must after horizontally moving the lowered All turnbuckles are brought back into their original position across the supporting structure to give the structure the right shape. This takes a considerable amount of time and is dangerous with it that the structure is not back in exactly that same shape is brought. ·

This process is particularly difficult Structures made of composable components with undervoltage. These structures are statically indeterminate and by adjusting the various turnbuckles, internal, uncontrollable tensions are obtained, also solutions, in which the pressure bars of an under-tensioning are adjustable in length and thus serve to set the cant and lowering during expansion, simplify not the condition described above, because also The turnbuckles in the lower chords of the girders are still loosened, and again after moving the structure must be tensed as before.

The invention is based on the object for the above-mentioned last-mentioned support structures as Devices that can be used with end supports are available which can not only be connected to a structure similar to the structural parts, but also the requirements for such structural constructions suffice. Such structural constructions are not in fact only used in such a way that the lower part of each end support is subjected to tensile stress * but also in such a way that this lower part Has to absorb compressive forces,

BATH

1 o / oess -

DtpL-MQj · IfMBZ UMMHTf PotCHIdOWdIt »

17 «1.1966 b * tr. L 5742 «ott

In order to achieve this object, the invention is based on the known device first mentioned at the beginning suggested to ensure «that the upper part of the end link on the associated End of the upper chord of the structure and the lower part at the associated end of the lower chord of the structure are rotatably connected. Is a supporting structure with devices designed in this way provided supported on supports and this multi-part supporting structure is intended without affecting the location its individual parts are changed, lowered or raised, then it is only necessary to ensure that the Lengths of the lower parts of the end links are increased or decreased, it no longer matters which one The shape of the supporting structure is because each lower part of an end link transmits tensile forces as well can also absorb compressive forces.

It is expedient to use the end link part that can be connected to the upper chord of a supporting structure in a known manner Way to make (referenced publications under 2) adjustable in length or variable in length, i.e. that the articulation point via which the upper part and the lower part are connected to one another, and the articulation point, on which the upper part of the end member is hinged to the structure, each on an upper part of the end member are provided and both end link upper parts can be moved and fixed against one another.

The lower part of the end link that can be connected to the lower chord of a supporting structure is expediently like a turnbuckle formed and is more appropriately designed in such a way that that it has a sufficiently large length adjustability. The thread length of the turnbuckle

BAD ORISINAL

809810/0686

Heinz Lester, patent attorney

,. .. 17.1.1966, L 57 * 2 β "

Sdtreibm vora · ■ * concerning sheet

are therefore dimensioned, for example, so that the lower part of the end link can be shortened in such a way that the support or · support piece is about half the height of the supporting structure or the adjacent end girder. This will not only a flawless lowering in a voltage-free state but also achieved the possibility of arc-shaped Structural structures through low-lying supports the resulting bearing force into the system lines of the structure to direct.

Moving such structures presents no difficulties more, so that one or more supporting structures, for example a roadway of a bridge, are first shuttered and then, by moving the supporting structure (s), you can also manufacture the other carriageway. This design is also there the possibility of shuttering coves in scaffolding without additional aids. Another advantage of the proposed The solution is to facilitate the removal of arched scaffolding · With the previously known designs additional aids must be used to make the arched structure free of tension for the expansion. By means of a device according to the invention, the supports can be drawn inwards by shortening the lower parts which detaches the structure from the scaffolded structure.

The purpose is to arrange the articulated connection of the lower part of the end link on the upper part of the same so that it lies in the intersection of the system lines of both parts. Particularly It is recommended to ensure that the intersection of the system lines of the two parts is above the point of support of the Support force lies, i.e. the direction of the support force

BATH 809810/0886

Diploma-capable. Heinz 1— * · τ, patent attorney ¹ ^

SArdbenvoffl January 17, 1966 b «tr. L / 57 ^ 2 sheets ψ

intersects the intersection of the system lines of the two end link parts. This arrangement adds additional Bending stresses in the upper and lower part avoided.

The invention is based on several exemplary embodiments schematised, explained. Show it:

FIG. 1 shows a side view of a supporting structure composed of several structural elements with undervoltage and with two devices designed according to the invention for lowering and raising the supporting structure in a raised position of the supporting structure, \

Figure 2 shows the structure of Figure 1 in a central position, 3 shows the structure according to FIG. 2 in the lowered position, FIG. 4 shows the structure according to FIG. 2 in a position which, was caused by the lowering of only one end of the structure t, '

Figure 5 is a partial side view of one according to the invention

designed device in the position of the structure j according to Figure 2 in an enlarged view, connected to an end girder of a structure composed of several parts, the Bearing point between the upper part of the end link and the lower part of the end link in the system line of Support force - here vertically above the support point - is,

FIG. 6 shows a further exemplary embodiment similar to that according to FIG. 5 # with the bearing point between the upper part of the end link and the lower part of the device is at a distance from the support point, wherein the Parts of the end link are also shown in two positions shown in phantom,

BATH ORIGINAL

809810/0686

Dipl.-Ing. Heinz Lauer, patent attorney Sdireiben from 17 * 1 * 1966 on L 5742 sheets

FIG. 7 shows a plan view of the exemplary embodiment in FIG. 6, F.

Figure 8 the support of an arched scaffolding with a non-adjustable end link upper part.

The structure shown in Figures 1 to 4 consists of _

of two components 1, which are isosceles in the side view, forming trapezoids, and two parts of the side view in the. essential parallelogram-shaped components 2, the. form the end girders of the structure. The components 1 and 2 are connected to one another in the area of their upper chords 3 and 4 in a manner known per se via bolts or the like 5, and in the area of their lower chords 6 and 7 they are indirectly connected to one another via turnbuckles 8 Structure formed from four components received the required cant. The structure is under tension, the under tension is formed from tension rods of constant length 9 and tension rods of variable length 9 ¹ » each containing a turnbuckle 11, and compression rods Io and lo ^f . The tension rods are articulated to one another, the two outer tension rods 9 also articulated to the lower chords 7 of the end girders 2. The compression bars Io and Io 'are connected to the upper chords of the components 1 and 2, the above-described, expediently excessive according to the load to be absorbed The structure is a rigid disc.

To the upper belt 4 of the end support 2 are via a bolt od. Like * 12 the upper parts 13 of the raisable and lowerable device pivotally articulated, whereby it does not matter whether such an upper part is one or two parts. In the case of the Embodiment of Figure 5 is assumed that the upper part of two mutually displaceable and by one Bolts od. Like. 14 fixable parts, while in the

809810/06 8 6 \ .r _BAD

DIpL-ta «. IMu Unar, patent attorney ' SAwibwi ww 17.1. 1960 b «tr. L 5742 sheets ψ

Pall of FIGS. 6 and ¹ J it was assumed that each upper part consists only of a single piece, even if it is composed of several parts rigidly connected to one another. Openings 15 and 16 (FIG. 5) and 17 .. (FIG. 6) allow the length of the upper support part to be adjusted.

As 4i ^ Söfcersurte 7 of the end girders 2 are as support lower parts Spannschl6sö3r X & jmgecke, each by a bolt or the like

a tension rod 9 can be used when the structure, which consists of several components, has an undervoltage. The other ends of the turnbuckles l8 are hinged to the associated upper part 13, specifically in the case of the exemplary embodiment according to FIG. 5 at a point which is perpendicular above the point of application of the bearing force A. The articulated connection takes place via a bolt or the like. 2o. In the case of the exemplary embodiment in FIG. 6, the articulation point is located at a distance from the support point. The lower part or turnbuckle 18 and the upper part I3 are connected via a bolt or the like. 21 to each other connected. The system lines of the parts are marked with 13 * and 18 'respectively.

In both cases, the upper parts are each rigidly connected in a known manner with a spherical support piece 22 or 22 *. «Mes support piece 22 blw. 22 'is here - as on the support piece 22 * shown in Figure 7 - provided with a borehole or an elongated hole 23 through which a pin extends, one end of which is set in a support plate 25, for example screwed, and the other End connected to a washer 26, e.g. screwed and riveted. As a result, the is placed on an abutment 27 and with respect to this displaceable plate 25 not only fixed with respect to the upper part 13, but can also

809810/0686 BAD ORiQlNAL

DipL-ed. IMnx Letnr, patent attorney * ^v

Sdmbm from 17.1.1966 belr- L 5742 sheet χ _ο

be rotated in relation to the Auflagerstttek or supporting structure. Since each support piece: when lifting the supporting structure from the position according to FIG. 2 into the position according to Bigur 1 or when lowering the supporting structure from the position according to FIG. 2 into the position according to FIG. 3 or according to FIG Long hole 23 in the direction of the structural level. The bearing spacing changes (L of the elevated structure, as is known per se, namely it decreases by the amount-A £ or A £ - if only one end of the structure is lowered or raised It is not only shown in dotted lines in FIGS. 1, 5 and 4 which position the upper and lower parts of the support are when the supporting structure is neither raised nor lowered, as is the case in FIG. 2, but also in FIG. 6 The dash-dotted lines indicate how the support piece would be if the supporting structure was raised and lowered. In the case of the exemplary embodiment in FIG 25 and abutment 27 are shown raised and lowered, respectively, and it can be clearly seen in FIG lifted with stationary abutment 27 and by lengthening the distance between the connection points of the turnbuckles 18, the supporting structure can be lowered from the position marked with solid lines, the span change being marked in the first case with 4 &> , in the second case with ^ £ ₂ . The change in length b £ ± or / * 0 ^ corresponding movement of the stock piece 22 'is through the elongated hole 23 or the like extending in the structural plane. enables.

809810/0688 BAD

Dlpl.-lng. Hein Ummv Patent Attorney 44 1434341

Letter dated January 17, 1966 regarding L 5742 sheets ^

It doesn't even require the two turnbuckles 18, as shown in Figure 4-. So lowering and raising the structure cannot can only be brought about relatively easily, but also relatively quickly, without affecting the outline shape of the actual structure has to be changed.

Of course, the individual members of the device used to lower and raise the supporting structure also be designed in a different way than the embodiments Beigen.

⁸⁴⁰

809810/0886

Claims (4)

4% Ipl.-Ing. Heinz L «ti« r, patent attorney yhreiben from January 17, 1966 ^. L 5742 'Βία « Claims IJ "Device for installing and removing structures ^ - in Baiken or arch form - especially from several composable structural elements with and without undervoltage existing structures, itie Bridges, collapsible halls, scaffolding or the like - consisting of at least one multi-part End link, one end of which is on the top chord and the other is a spherical support piece load-bearing end supported on a support plate, perpendicular to the structure of the Indians Structural level pivotable upper part between these support parts has a bearing point at which a adjustable in length, attached to the lower chord of the structure lower part is connected, thereby characterized in that the upper part (13) of the end link at the associated end of the upper belt (4) of the structure (2) and the lower part (18) on the associated The end of the lower chord (7) of the support structure (bearing 12 or 19) are connected so that they can rotate. 2. Apparatus according to claim 1, characterized that the end member part (13) which can be connected to the upper chord (4) of a supporting structure (2) in is known to be adjustable in length or designed to be variable in length. 3. The device at least according to claim 1, since d u rch in that the lower part of the end member is constructed as a turnbuckle (18) whose Qewindegänge are dimensioned such that the lower part is such shortened in that the support (27) or shoe member ( 22, 22 *) about halfway up the support structure or the adjacent end support (2) is C ^ .gur 6). 8 0 9 8 1 _{0/0 S 8 6 8ÄD} DfrvJtag. HWu Im ·· * Paitittenwafi "^ 1434341 , 1966 ^ ₁ L 5742 4. The device at least according to Anspm ch 1, characterized in that the upper and lower parts (13, 18) of the end member which can be connected, variable in length or variable in length can be connected to a supporting structure part (2) in a manner known per se at the intersection of their system lines ( IjJ ¹ , 18 ') are articulated to one another (Figures 6 to 8). 5. Device according to claim 4, characterized in that the intersection of the system lines (15 ¹ , 18 ¹ ) of the two parts (15, 18) lies above the point of application of the bearing force (Figure 5). Referred publications: 1. DBP 957 2. GM 1,758,777
5. DAS 1 008 9ol
4. DBP 1,058,554 809810/0686