DD152821A1 - METHOD FOR CONTROLLING MONOLITHIC CONCRETE AND STEEL CONCRETE CONSTRUCTIONS - Google Patents

Abstract

The invention relates to a process for the dilution of monolithic concrete and reinforced concrete constructions, e.g. for joint training in concrete track construction or joint training in beams, foundations u. Like. The invention has for its object to develop a method that is universally applicable, constructive requirements on transfer higher Duebelkraft in mobile and anchored bearings without additional sliding inserts or coatings erfuellt and can be applied technically and technologically efficient. The problem is solved in that in the first section to be concreted a Hülse is einbetoniert in which a short dowel part is welded u.die with their remaining free hole an abutment for the then aufzusteckenden Duebelteil, which in turn is welded to another Hülse forms , After completion of the following section, a longitudinally movable dueling connection is created by this arrangement, which is formed as required by connecting both Huelsen as a rigid storage. To protect against Spaltzugkraefte the duel connection is provided in particular in edge areas with closed or plug-in casters.

Description

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Field of application of the invention

The invention relates to a method for anchoring monolithic concrete and reinforced concrete constructions, for example for the formation of dowelled transverse and / or Längsraum- and -preßfugen in concrete pavements, indoor floors or joint training on concrete and reinforced concrete beams, foundations * track sleepers or the like.

Characteristic of the known technical solutions

The specifications of TGL 16237/01 are binding for the production of dowelled joints in concrete pavements. · The simplest method consists of inserting round steel in the joints area. However, the use of concrete pavers is limited because the use of conventional transverse and side skirts is not possible due to the protruding dowels is possible. Also known is the bending of the inserted round steels and later straightening ". However, with this method, the joint y-irkoarruce (transverse force transmission and longitudinal mobility) is considerably reduced."

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Also known is the use of a separate anchor, wherein the plug is screwed after concreting a concrete section in a concreted threaded sleeve * to avoid protruding from the concrete «Disadvantageous hereby _s that the transferable anchor forces are limited to the cross section of the anchor and that the dowel is immovably mounted and, when subjected to thermal expansion, a "deformation in the longitudinal direction can only be made possible by inserted paper sleeves or bituminous coatings."

Also known is the hanging of the dowels in an existing reinforcement or placing the dowels on an additionally arranged AbstStsungskorbe

In the joint arrangement in concrete and reinforced concrete beams in permissible section sizes, the adjacent concrete beam ends are hingedly coupled to each other by arranging a round or sectional steel crossbar and other joints. Deformation in the longitudinal direction of the bank is also accomplished only by wrapping a dowel end or made possible by sliding coating «These solutions are not particularly effective for a flexible joint formation and can lead to concrete damage in the joint or joint area. ·

The aim of the invention is the development of a technically and technologically rational process for the production of dowelled joints or "joints in monolithic concrete and reinforced concrete structures» in which a high rational degree of prefabrication can be done for the dowel as well as an uncomplicated installation on the site stable position of the anchor is ensured during the concreting process and the processing of round steel remnants allows ·

Presentation oF ,,,, _- Weseng _r ^ of the invention

The invention is based on the object, by creating a method for dowelling or · Joint training monolithic concrete · and reinforced concrete structures both in road and high construction, as well as foundations, the constructive demands on a transfer higher dowel forces both in the production longitudinally movable as well To ensure anchored Lagsrungen without additional sliding inserts or · paints and a

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According to the invention, the object is achieved »that created to create a dowel joint in monolithic concrete and reinforced concrete constructions in the first concreted section a sleeve v / ird * in which a short dowel part welded and in the remaining free hole an abutment formed in the after completion of the section another sleeve with a welded-in and outstanding dowel part plugged and thus a total of a longitudinally movable

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Dowel connection is formed ·

To create anchored joint regions or rigid structural connections, both sleeves are welded or glued together and concreted in together. A further feature of the invention is to arrange closed or stirrups for securing the anchor arrangement against splitting tensile forces, in particular in the edge regions. Furthermore, the sleeve to be introduced in the first section to be fixed to the formwork by means of screw or expansion dowel attached to the formwork for stable positional fixation.

Ausführungsbei game

The invention will be explained below with reference to the anchoring of concrete pavements or the joint formation of a crane runway beam.

In the accompanying drawing show

Fig. 1 the separate dowel with the respective sleeve Fige 2 the joint formation with built-in dowel Fig. 3 securing the dowel to the formwork Fig. 4 securing the dowel joint by means of clip to create a dowel joint monolithic concrete and reinforced concrete structures, the longitudinally movable storage of Ensure potted structures, the sleeve 3 is welded to the short dowel part 1 and inserted to secure the position in the first section to be concreted in the reinforcement '* or attached to the formwork 9 by means of screw or expansion dowel 10 and concreted »With the sleeve 4 is welded from her protruding dowel part 2 and inserted into the open bore of the sleeve 3 and embedded in the subsequent section.

To create anchored joints. 6 or a rigid connection, the plug part 1 and 2 and the sleeves 3 and 4 are welded or glued together.

To secure against SpaltZugkräfte the dowel assembly 1 to 4 is bordered in particular in the edge region, with closed or stirrups 11 *

Claims (4)

invention claim 1 »method for bolting monolithic concrete" and Stahlbetonkonstrukticnen, for example, in the joint structure for concrete roadways, floors or Hall * for joint formation in bar foundations * u · · the like, characterized in that _s a sleeve (3) is cast in in each first au concreting section (7), in v / elcher a short plug part (1) welded and in the remaining free bore (5) an abutment is formed, in which after completion of the section a v / Eitere sleeve (4) with a welded-in and outstanding dowel part (2) is plugged and the. Arrangement as a whole forms a longitudinally movable plug connection with high transverse force transmission · 2 · Method for dowelling monolithic concrete and reinforced concrete structures according to item 1,
characterized in that to create anchored joint areas (6) the sleeves (3 and 4) are welded together or connected in another way z. B. gluing · 3 · Method for doweling monolithic concrete and reinforced concrete structures according to item 1 and 2, characterized in that the. Sleeve (3) with the dowel part (1) by means of expansion dowel or screw (10) is fixed in the installation position for the concreting process · 4 · Method for dowelling monolithic concrete and reinforced concrete structures according to item 1,
characterized in that the dowel arrangement (1 to 4) in particular in the border areas by closed or Steckbügel (11) be bordered « For this 1 sheet drawings