Plastic and nonmetallic article shaping or treating: processes – Forming structural installations in situ – Repositioning or moving mold to form sequential portions of...
Reexamination Certificate
2001-06-29
2004-08-03
Colaianni, Michael (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Forming structural installations in situ
Repositioning or moving mold to form sequential portions of...
C264S034000, C425S063000, C425S064000, C425S065000, C249S019000, C249S020000, C249S022000, C249S024000, C249S033000, C249S036000, C052S745090
Reexamination Certificate
active
06770228
ABSTRACT:
The invention concerns a climbing shuttering system in and a method for the successive concreting of high vertical walls.
A device for casting walls is known in the prior art from AU-B-18541/88 (acceptance no. 597836) and is viewed as the prior use subject in particular for the erection of at least two spaced and preferably parallel high walls. In the process, when using such a climbing shuttering system, the walls are erected section by section, e.g. in sections of respectively one storey in height. In this connection at first and mainly on a largely planar surface on which the walls are to be erected, a concrete shuttering consisting of a plurality of concrete shuttering elements is formed, in order to concrete a first wall section. In this context, the concrete shuttering elements are set up and stabilized with their own support and set up means.
For the erection of the further wall sections, the same shuttering elements are used, in which they are assembled with additional components to form a climbing shuttering system. This is done so that a support construction is positioned with the concrete shuttering elements and with support carriers. After the positioning by the crane, the arrangement with the support carriers, which are supported laterally in the wall sections already erected, are kept at the corresponding height. By resting on the second support carrier which is also supported laterally in the finished wall sections, after the erection of the second wall section which is located above the first wall section, the entire construction is again moved upwards. Then at a suitable height, the shuttering for a third wall section to be erected can be set up. By frequent repetition at discretion of the steps named above, high vertical walls can be erected for the formation of shafts or complete layouts.
In detail, the known climbing shuttering system therefore has a largely horizontally arranged support structure, which is connected with at least two first support carriers, the so called upper support carriers, and it is supported on them. On the support structure a plurality of concrete shuttering elements are attached hanging downwards. In addition, the support carriers have to have means by which they can be supported laterally on a completed wall section. Equally at least two second support carriers, the so called lower ones, are provided with such means. For the vertical movement of the support structure and/or for raising the lower support carrier, respectively two lift devices are provided, which make a relative movement between the top and bottom support carriers possible.
Whereas in the known system with the elements described above, the possibility of climbing, of subsequent formation of the shuttering and therefore of the successive concreting of high vertical walls is ensured, the known system cannot be used for the setting of the respectively first wall section on the largely planar surface, which is the point of departure. The reason for this is that for this purpose, the concrete shuttering elements which are suspended on the support structure have to be totally lowered onto the largely planar surface. In the area in which the concrete shuttering elements have to be lowered, however, the elements which are necessary for the support of the top support carrier, e.g. laterally pivotable pawls, are formed. These elements necessarily have to be formed below the concrete shuttering elements and aligned with them, so that during the later shuttering of a wall section on a wall section which is already present, the lateral support of the top support carrier which is located below the shuttering elements is ensured.
Because of these essential elements for the lateral support of the top support carrier, the concrete shuttering elements are consequently not lowerable onto the level of the surface on which the first wall section is to be erected. In addition, the elements in the known arrangement prevent the support carrier from being arranged at the start of the concreting work on the planar surface, in order to support the support structure with the concrete shuttering elements.
Consequently with the known climbing shuttering system there is a problem that the first wall section with the additional stabilisation and set up means has to be erected together with the shuttering elements of the climbing shuttering system. Then its own stabilisation and set up means have to be removed, and in addition in particular the shutterings used within a shaft have to be lifted out in a costly manner by use of a crane. This removal of the components and shuttering elements used for the first wall section before the erection of the climbing shuttering system and the necessity for the storage of these elements already increase to a considerable extent the costs for the erection of walls or shafts by means of the known system. Furthermore, with respect to the organisation of labour, it is extremely disadvantageous because the builders cannot be employed for the setting, reinforcement and concreting of the first wall section for the duration of the dismantling of the shutterings which were used for the first wall section. Only after the removal of the named elements and after the erection of the climbing shuttering system in the level above the first wall section, can the shuttering and reinforcement personnel again be employed. Depending on the complexity of the layout to be provided, this interruption can last from three to six weeks, and it therefore constitutes an undesirable interruption in the building cycle.
In fact there are climbing shuttering systems, the components of which can be used both for the first as well as for all the other wall sections. In this case, at first the respectively first wall section is erected. Then devices are mounted on the erected wall sections, which after the removal, draw the entire support construction with the shuttering elements into the zone above the first wall section. There the shuttering can then be set up for the second wall section and the second wall section can be concreted. After the completion of the second wall section, the lifting device is based on the second wall section, in order to bring the climbing shuttering system to the necessary height again. But in this context the lifting devices project at least one storey high above the support construction, which is usually designed in the form of a support platform. These lifting devices which project upwards are in particular an extreme impediment when supplying the concrete and the reinforcements. Especially because of the lifting devices which project upwards, there is a substantial danger of damage to these devices and an increased danger of accidents.
In the climbing shuttering system as in WO 90/09497 as well, parts of the lifting device project beyond the work platform and impede the activity in this area. In addition, in this known climbing shuttering system as well, the erection of the first wall section cannot be directly carried out on the base plate, which was the point of departure. No suitable measures for this purpose are described in the named publication. On the contrary, the work with the aid of the climbing shuttering system only begins after short starting walls have been erected on the base plate, by means of which the suspended concrete shuttering elements can be adjusted. Consequently, when using this known climbing shuttering system as well, special measures are necessary for the erection of the first wall section. In addition, the lower support carrier of the arrangement shown has to be replaced after the erection of the first wall section by a support which is suitable for climbing, which makes the device and the process carried out with it complicated.
In view of these disadvantages of the climbing shuttering systems which are known in the prior art, the object of the present invention is to create a climbing shuttering system, the components of which can be used both for the erection of a respectively first wall section on a largely planar surface, as we
Colaianni Michael
Doka Industrie GmbH
Fitch Even Tabin & Flannery
Poe Michael I.
LandOfFree
Method for successive concreting of high vertical walls does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for successive concreting of high vertical walls, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for successive concreting of high vertical walls will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3361919