DE1948563A1 - Process for the assembly of silo storage for bulk goods and liquid substances and silo storage manufactured according to this process - Google Patents

Description

Patent attorneys

ZELlENTIN υ. LUYKEN

8000. Munich 22

Zweibrückenstrasse i

Glavnoge upravlenije po September 25, 1969

stroitelstvu elevatorov i L / fa

drugich specialty zelezobetonnych sooruzenij Ministerstva selskogo stroitelstva RSFSE ₁

Moscow / USSR. P 28 326/2

Process for the assembly of silo storage for bulk goods and liquids and silo storage produced according to this process

The present invention "relates to methods of assembly of silo storage for bulk goods and liquid substances and silo storage produced according to this process, which is used for storage of bulk goods such as grain, sugar, animal feed, Rubble, cement, lime, dolomite flour, keramsite and others as well as liquid substances such as water, wine, petroleum, Masut, fat and other chemical and products Food industry can serve.

Usually silos are made of monolithic

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Reinforced concrete or precast reinforced concrete elements. From all Memory types that are now used are special economical and effective .. memory with round large cylinder shells (whose diameter is 6 m and more), which apart from _ "structural advantages, have a large Ιηηβίν space and are easy to use.

A method for assembling silo storage for bulk goods and liquids is known, \> el dem. - A rigid connection of cylinder shells with one another takes place, which are set up parallel to one another, each shell being assembled from individual rings that consist of several hanging segments. (See e.g. Lipnizki

"Reinforced concrete bunker and silo", Stroiisdat, Leningrad,

At c (i £ sem. Assembly method for memory will be mortared the hanging segment joints. After the concrete has reached the calculated strength at the joints, the assembled rings are placed on top of each other, being cement-sand'-mortar for the 'horizontal

Butt joints is used.

When erecting the shells, the connecting lines are connected by screws and cast in concrete using cast-in-place concrete so that a stiff skeleton is formed, which consists of columns that extend over the entire height of the storage tank.

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stands. With regard to the static conditions, the outer storage edge shells, their elements, are both in the vertical as well as in the horizontal plane Bending stressed, stressed at the most unfavorable. in the In connection with this, monolithic columns are concreted on the outer perimeter of the storage tank in some constructions.

However, the joints must be set in concrete between the hanging segments and shells a very large amount of work, especially in winter, which

d & 'storage assembly is very slowed down. The lack of one Prestressing of the concrete in both the precast elements as well as at the joints results in a low "" "crack resistance and a shortened area in the accumulators Lifespan.

There is a method of building stores out of it

monolithic reinforced concrete in sliding formwork is known, however, the memory construction according to such a method with a large amount of work and consumption of concrete and reinforcement connected. In addition, such memory usually not made of pre-stressed concrete, v / as

the emergence of hoists and their training facilitated, which significantly reduces the strength of the memory and greatly shortens its service life will. -..- ".

It is a method of building stores in

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Sliding formwork with a prestress
Concrete known, which is achieved either by bundles, made of high-strength wire, which are in curvilinear channels. in the shell walls' - laid and td. erecting the storage tank, tensioned by hydraulic fretting ... or by winding high-strength wire around the concrete body of each storage shell.

In the first case, when tensioning the reinforcement, and when injecting the canals with cement mortar, a high degree of

Quality of work required, which is difficult to adhere to under .. mounting conditions, especially at low temperatures is.

powder ^ as there is no protection against corrosion

the tensioned reinforcement,

The present invention aims to overcome the drawbacks mentioned.

The object of the invention is development one - process for the assembly of silo storage for bulk goods and liquids as well as in the development of one Memory. where that

Concreting the ring segment joints and the shells omitted and with the pre-tensioning of the concrete both at the ring segments as well as at the joint of the latter and at the connection points of the shells. " intended ·

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This is achieved in that at

the assembly of silo storage for bulk goods and '· liquid substances with rigid connection of cylinder shells: which are set up parallel to each other are each assembled from individual rings is, which consist of several ring segments, erfindungsgeraäß each ring segment made of prestressed concrete

and bowl

becomes and the ring segments to rings / the rings of the one / with the rings of the other shell are connected by pulling them together and fixing them in the contracted position.

■ The contraction and fixing of the soleplate rings together should be carried out at the joints between the ring segments.

In the case of the accumulator installed according to the above-mentioned method, the rigidly interconnected round cylindrical shells, which are set up parallel to each other and from which each is assembled from individual rings, which consist of several ring segments, are according to the invention to the Ends of the prestressed ring segments are provided with thickenings, each of which has through openings for arrangement of contraction elements through which the - Ring segment joints are pulled together and fixed when assembling the rings. '

It is useful if the length of each segment is thickened at least the length of the anchoring zone

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tensioned reinforcement is the same.

iiiiie .. solution of the task made possible

es, by manufacturing prestressed storage segments and by connecting them by means of contraction elements JL and subsequent tensioning up to the computational stress to produce rings in the course of assembly, their Concrete in each. - Cross-section is prestressed, which increases the security of the memory and extends its service life.

At . the storage assembly will be in the shells the .Veräickungen arranged one above the other, at the points of contact of the shells - against each other, relocated and subsequently the contraction elements up to computational stress is tightened, whereby composite columns are produced, which run through to the entire height of the storage tank and from which a supporting frame is formed, that absorbs the stresses caused by its own weight, useful load and uneven subsidence. This allows the work to bring in the in-situ concrete when erecting such a supporting frame is no longer necessary.

J) OiS . Contraction and fixing of the prestressed segments to form a ring by the contraction elements, which is based on the fact that a transfer of .Ringbeanspruchungen to the contraction elements due to the adhesion between reinforcement and concrete in the area of the segment thickening. takes place, is not of the material and of the

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Type of reinforcement (reinforcement bars, high-strength wire, reinforcement bundles) as well as from the method of reinforcement tensioning dependent, whereby any method for prestressing <w <er reinforcement in the production of ring segments

of any kind that has sufficient adhesive strength with the concrete, can be applied.

In the following, the invention is illustrated by the description an exemplary embodiment explained with reference to the accompanying drawings.

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FIg * 1 - the longitudinal section of the storage tank according to the invention * Fig. 2 - top view of the memory according to the invention; J - longitudinal section of the storage segment, top view; FIG. 4 - section IV-IV of FIG. 3;

Fig. 5 - Longitudinal section of the connection point of two adjacent ring segments to the ring;

FIG. 6 - junction A of FIG. 5;

Fig ·? - Connection point B of FIG. 2.

The silo storage for storing bulk goods and liquids is assembled by rigid connection of round cylindrical shells 1 made of reinforced concrete (Fig. 1), which are set up parallel to each other and each of which is assembled from individual rings 2, which are made from

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more ring segments J with a curvilinear outline (Pig. 2 and 3) exist, . '

The belt segments J are used as prestressed components manufactured. For this purpose, each ring segment is manufactured in the following way «;. »;

On the bottom (not indicated in the drawings) of the Formwork,. which has the shape of a curvilinear ring segment 3 has reinforced concrete f4xators 4, which cutouts. 5 (Fig. 4), arranged vertically. The number of Fixators 4- will depend on each individual case the length and curvature of the hanging segment 2 set.

Then the reinforcement intended for prestressing.? in Recesses 5 and protrusions 6 of the fixators 4 relocated and prestressing with immediate bonding of the reinforcement / dtacn the mechanical or electrothenaic method. In order to increase the adhesive strength between reinforcement and concrete at the ends of the tensioned reinforcement 7 reinforcement spirals 8 (Fig. 3) placed.

Reinforcement bars 7, high-strength Wire, bundle and other steel products that have sufficient Adhesion -with the, Bef © n have, can be used.

After that, £ jpanneA.-the reinforcement? the concrete mix - ·. in the leap day, (indicated in the Ztistaiag ni © M) - ■ freight and a 'la ^ ebehaisSXtsag-imt © rwor £ en · As soon as the B © - "",' his .r @ ci ^ i? is @ h @ fsetigtoit ©rh@jltpn.-lmt* wii? d; .4us? © bi kb- *

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cut the tensioned reinforcement 7 at the ends of the shaped ring segment 3 the. Transferring tension to the concrete, after which the ring segment 3 is removed from the formwork.

The . <before concreting) ». . Tension of the reinforcement 7 in a curvilinear direction ^ ie is achieved by means of the fixators 4- made of reinforced concrete, ensures reliable corrosion protection of the reinforcement and Un, even compression of the concrete in all cross-sections of the ring segment 3

In the execution of the ring segment 3, thickenings 9 are provided at the ends of each ring segment, which serve to anchor the tensioned reinforcement to connect the ring segments 3 when assembling the rings 2 and to form the storage skeleton, which absorbs the stresses due to its own weight, useful load and uneven subsidence .

In each thickening two pairs of through openings 10 for the arrangement of the contraction elements of the screws are ben 11. (S ¹ Ig. 5 and 6) _; provided, through which the joints of the ring segments 3 are drawn together and fixed when the rings are assembled, whereby a pretensioning of the ring concrete can be generated at the ring joint points in order to increase the crack resistance of the ring and to extend its service life.

The length of each digging 9 of the ring segment 3

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will be at least equal to the length of the anchoring zone of the tensioned Reinforcement 7 assumed, whereby the assembled ring has the same strength at all cross-sections is guaranteed"

For a better connection of the ring segments when ^ The end faces of the segment connections point to rings 9 at one segment end concave surface & 12 (Fig. 3) »on other segment ends on convex surfaces 3, where for both end faces assumed the same radius of curvature

is. _,

peel

The rings of one / become with the rings of the other Shell by pulling together and fixing with bolts in contracted position connected * with the contraction and fixing of the rings 2 forming the shells 1 den.Stoßpunkte der Ringegment-: 3 to rings 2 takes place (see Fig. 7).

The assembly of the memory is carried out in the following way. ·

In the assembly area, the rings 2 are assembled from the pretensioned Rings egaent en 3 (Fig. 2). For this purpose, the end face of each thickening 9 (FIG. 5) on each ring segment 3 is covered with a binding agent, which can consist of Zament sand mortar, epoxy resin or other materials. After that, the segment rings 3 up to mutual

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Stop of the end faces of the thickenings 9 moved together and the screws 11 with the washers 14 and nuts 15 are arranged in the openings 10. To prevent. derung4> when tightening the screws 11> a concrete queue -under the discs 14 reinforcement spirals 16 are arranged

Tightening the nuts 15 up to the calculated breaking load of the ring is done using a torque wrench.

_{The presence of the indentations 9 9} formed on the bores of the ring segments 5, which have a concave 12 or convex cylindrical face, ensures a tight fit when assembling the ring using a binding agent for the butt joints, which is the case *** .- combination with the tightening of the bolts H to computational power permits the mounting of the memory immediately after 4h of the screws and removing from the iiiehen Hung 2 of the binder over Schus · ses make that the assembly of the rings 2 at from Shock. joints was pushed out

This can significantly increase the speed of the storage tank assembly, since the installation of the hinge at

• Presence φι the butt joints>. not yet hardened binder! will be executed ikAUt.

The rings 2 (Fig. 2) for all ^ yIinderschalen 1 can assembled at the same time «earth, they are then accordingly the size and shape of the memory. Babel

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one connects after setting up a row of rings at all Do the rings 2 of one shell with the rings 2 of the other shell using screws1? (Fig. 7) at the ßtoßstellen the ring segments 3. The Verickungen 9 of a shell ring 2 are with the. Thickenings 9 of the rings 2 of the other Shell connected. On the joints of the thickenings 9 of the ring segments 3 and on the circumference of the rings 2 is a Binder layer applied, being transverse to the thickenings 9 the screws 17 are arranged through which the Pulling together and fixing the shells with one another. follows.

In this way, the. . Sales 9 one above the other in the shells and against each other at their points of contact and subsequently the Contraction elements withdrawn to the computational force, so that the compound reaches the entire height of the storage tank Columns are created, from which the storage structure is formed, which the stresses due to dead weight, useful load and uneven subsidence. It will be like this enables. without work on pouring in-situ concrete for Formation of such a supporting skeleton.

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Claims (1)

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