NL8201879A - Building construction. - Google PatentsBuilding construction. Download PDF
- Publication number
- NL8201879A NL8201879A NL8201879A NL8201879A NL8201879A NL 8201879 A NL8201879 A NL 8201879A NL 8201879 A NL8201879 A NL 8201879A NL 8201879 A NL8201879 A NL 8201879A NL 8201879 A NL8201879 A NL 8201879A
- Prior art keywords
- Prior art date
- 238000009435 building construction Methods 0.000 title description 3
- 238000009415 formwork Methods 0.000 claims description 33
- 241000219098 Parthenocissus Species 0.000 claims description 24
- 230000002493 climbing Effects 0.000 claims description 14
- 238000010276 construction Methods 0.000 claims description 13
- 238000000034 methods Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 230000000284 resting Effects 0.000 claims description 3
- 230000001808 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reactions Methods 0.000 claims 1
- 241000935985 Certhiidae Species 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000010410 layers Substances 0.000 description 1
- 239000000463 materials Substances 0.000 description 1
- 239000000203 mixtures Substances 0.000 description 1
- 230000036633 rest Effects 0.000 description 1
- E—FIXED CONSTRUCTIONS
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/28—Climbing forms, i.e. forms which are not in contact with the poured concrete during lifting from layer to layer and which are anchored in the hardened concrete
Background of the invention
This invention relates to a building construction.
In the construction of high-rise, poured concrete walls or walls, spaced formworks are mounted 5 on a foundation and when the first layer of concrete has hardened sufficiently, are moved upwards step by step by creepers, which run on supports, attached to nuts embedded in the paved area of the wall or wall. Although it has already been proposed to move the casing downward (see US Pat. No. 4,040,774), this has not been practiced since the creeper could not be moved downward with the same ease with which it moves upward.
For the prior art system (see also South African Patent No. 78/2842) it is essential that vertical supports are mounted on a paved portion of the wall and protrude above the creepers so that they last on the vertical supports can creep. One face of each vertical support forms a formwork surface and should be flush with the rest of the formwork. Thus, the formwork system used must be designed to suit the creeper.
The object of the invention is to provide a creeper which is substantially independent of the choice of the formwork system.
SUMMARY OF THE INVENTION The invention provides a method of construction employing a climbing technique in which a crawler is mounted on an upright support and is driven to effect a relative climbing movement between the crawler and the support, comprising the step of holding the support stationary and operating the crawler so as to climb on the support, characterized by the further steps of holding the crawler stationary and operating it so that the support climbs on the crawler, and keeping at all times 8201879 i% - 2 - away from the support of the structure.
In a preferred embodiment of the invention, the method comprises the step of holding the creeper stationary by connecting one of its protruding parts to the structure. The support can be kept stationary by resting it on the ground or supporting it on a console attached to the base of the support and to the structure.
The invention also provides an apparatus for use in constructing a structure employing a climbing technique comprising an upright support, a crawler mounted on the support and operable to effect relative climbing motion between the crawler and the support, and means for holding the support stationary when the crawler is operated to climb onto the support 15, characterized by means for holding the crawler stationary when the crawler is on a alternatively, the support climbs onto the crawler and in that the means for holding the support stationary and holding the crawler stationary serve to keep the support spaced from the structure.
An adjustable length punch may be pivotally connected at its top end to the top end of the support and at its bottom end to the base of the support. Changes in the length of the punch can then serve to change the position of the support, allowing changes in the vertical position of the structure.
The device may be provided with rails on opposite sides of the crawler support, with a mechanism in the crawler operable to rapidly raise the crawler 30 along one rail and with another mechanism in the crawler is effective to cause the creeper on the other rails to move rapidly downwards.
The invention will be explained in more detail with reference to the drawing with an exemplary embodiment.
FIG. 1 is a side view of a crawler according to the 8201879 i-3 invention in its position on the ground.
Fig. 2 shows the first step in raising up from the ground, and
Fig. 3 shows the device in the position lifted from the ground.
In the drawn embodiment, a crawler 10 carries a formwork 11 by means of horizontally arranged screw jacks 12. The formwork is reinforced by horizontally extending slits 20 on vertical beams 30.
The creeper 10 is mounted on a vertical support 13, 10 in the form of an I-beam, which is provided with spaced recesses in the body of the I-beam. The body forms rails for climbing the crawler. The lower end of the support 13 is hingedly mounted at 21 on a base 15 which projects laterally. A rod 17 is mounted on the top end of the support 13 and a strut 16 is hinged at its top end with the rod 17 and connected at its bottom end with the base 15.
The strut has an adjustable length thanks to a turnbuckle 22 between its ends.
The operation of the described device is as follows: First, the base 15 is laid on the ground, as shown in Fig. 1. An identical device is likely to be mirrored to the drawn device when the device is to be used to build a thin wall, for example. It is not necessary that the device on the opposite side is arranged in mirror image. When the opposite device is arranged in mirror image, the formwork 11 is connected to its opposite formwork by tie rods, which are indicated by dotted lines at 23. If no mirror image arrangement is used, the formwork 11 is connected to the steel reinforcement.
The tie rods used to join the formwork 11 are left in the concrete after it has hardened.
The concrete is now poured behind the formwork 11. When the concrete has hardened sufficiently, the formwork 11 is released, either from its opposite formwork or from the reinforcement, leaving the tensile members in the fresh concrete. The screw 8201879
The jacks are then operated to retract the formwork 11 from the concrete surface and the creeper 10 is operated to climb against the support 13. In practice, when a chimney or the like is to be constructed, a plurality of supports 13 are used along the perimeter of the structure and their associated creepers are operated simultaneously to raise the formwork around the entire structure. After the operation of the creep device 10, the device is in the position shown in Fig. 2.
The screw jacks 12 are again actuated to push the formwork 11 into a position in which it is flush with the previously poured concrete surface. Then the formwork 11 is reconnected by pull rods, either with its opposite formwork or with the steel reinforcement. Then a further amount of concrete 15 is poured behind the formwork 11 and this concrete is allowed to harden.
When the concrete has hardened sufficiently, the creeper 10 is operated in a different manner, climbing downwards relative to the support 13. However, because the formwork is fixed, the support on the creeper will climb to the position shown in Fig. 3. Until this time, the support is supported by the base 15 resting on the ground. When the base 15 is lifted from the ground, it is necessary to provide another form of support for the base 15.
This support is in the form of a console, which is indicated in its entirety by 18 in Fig. 3. The console 18 is attached to the underside of the base 15 and to tie rods left in the structure upon previous pouring of concrete.
The formwork 11 is released and the creeper 10 is again operated in such a way that it climbs high with its formwork on the support 13. The described steps can be repeated until the construction has reached the desired height. It appears that the support 13 is independent of the construction to be built during the entire process, because the support is always at a distance from the construction thanks to the formwork 11 and the console 18.
Although the device is described under special reference 8201879
* - V
As it is applicable for lifting a formwork for subsequent pouring of concrete, it is clear that it can equally well be used for lifting other objects on a previously constructed part of the construction, with a suitable part 5 instead of the formwork 11, which can be fixed after the crawler has climbed onto the support. For example, it would be possible to raise a work platform on a previously constructed wall. Typically, it would be possible to use a lead device, such as the one described above, to actually verify the structure, and a subsequent device for raising people and materials. The following device could either use the same tie rods as the lead device, if it follows the same vertical line, or it could be cascaded to the side of the lead device a short distance behind it.
The illustrated embodiment utilizes two spaced-apart crawling boxes, each of which houses two pawls 14 and which are connected by a double-acting piston-cylinder combination. Thanks to this device, the creep device 10 can move up with the casing 11 during construction of the structure and down with the formwork when construction is complete. In order to allow the creeper 10 to move down, the console 18 is attached to the structure in the manner described and the formwork is released.
The creeper is then operated to climb down the support. The formwork is then fixed by means of the tie rods left in the structure and the console released. The creeper 10 is then operated to climb up against the support so that the support moves down.
This sequence of operations continues until the entire device rests on the base 15 again on the ground, removing the console 18 before the creeper is actuated for the last time.
The device according to the invention can make a crane for lowering the formwork to the ground superfluous when construction 8201879 * - 6 - is superfluous.
- A construction method employing a climbing technique, wherein a crawler is mounted on an upright support and operable to effect a relative climbing movement between the crawler and the support, comprising the step 5 of holding the support stationary and operating of the crawler so that it climbs on the support, characterized by the further steps of holding the crawler stationary and operating it so that the support climbs onto the crawler and of keeping the support at a distance at all times of the 10 construction.
- A method according to claim 1, characterized in that the creeper is held stationary by connecting a protruding part thereof to the structure.
- Method according to claim 1 or 2, characterized in that the support is kept stationary by resting it on the ground or by supporting it on a console, which is attached to the base of the support and to the structure .
- 4. A method according to any one of the preceding claims, characterized in that the support is released for operating the crawler, so that the support climbs onto the crawler.
- Method according to one of the preceding claims, characterized in that the creeper is released before it is operated, so that it climbs onto the support.
- 6. Method as claimed in any of the claims 2-5, characterized in that the creeper is kept stationary by connecting the formwork protruding therefrom to the construction.
- A method according to any one of claims 3 to 6, characterized in that the console is attached to lost tie rods previously left in the structure.
- Method according to any of the preceding claims, characterized by varying the position of the support by varying the length of a punch acting between the top end of the support and the base of the support.
- 9. Device suitable for use in constructing 8201879-8 - A structure employing a climbing technique comprising an upright support, a crawler mounted on the support and operable to effect relative climbing motion between the crawler and support, and means for holding the support stationary when the crawler is operated to climb onto the support, characterized by means for holding the crawler stationary when the crawler is otherwise operated, the support climbing on the creeper, and in that the means for holding the support stationary and holding the creeper stationary serve to keep the support spaced from the structure.
- 10. Device as claimed in claim 9, characterized in that the means for holding the support stationary comprise a console which is attached to the base of the support and which can be connected to the structure.
- 11. Device as claimed in claim 9 or 10, characterized in that the means for holding the crawler stationary form a projecting part of the crawler for connection to the structure.
- Device according to claim 11, characterized in that said part is the formwork.
- Device according to claim 9 or 10, characterized in that the console is provided with means for coupling with lost pull rods, which have been left earlier in the construction.
- Device according to any one of claims 10 to 13, characterized in that the support is pivotally connected to its base and that an adjustable length punch is pivotable at its upper end with the support and at its lower end with the base, changes in the length of the punch serve to change the position of the support.
- Device according to any one of claims 12 to 14, characterized by screw jacks connecting the formwork to the creeper and acting to change the distance between the formwork and the creeper.
- Device according to any one of claims 9 to 15, characterized - -_________ 8201879-9 - by rails on opposite sides of the crawler climbing support, by a mechanism operating in the crawler to cause the creeper to move rapidly upward along one rail and through another mechanism in the creeper operating to move the creeper downwardly on the other rails.
- 17. Device as claimed in claim 16, wherein the support is provided with an I-beam, characterized in that the rails are formed by spaced recesses in the body of the beam.
- 18. A method of constructing a structure employing a climbing technique substantially as described in the description.
- 19. Device for use in constructing a structure using a climbing technique, substantially as described in the description and / or shown in the drawing. 8201879
Priority Applications (2)
|Application Number||Priority Date||Filing Date||Title|
|Publication Number||Publication Date|
|NL8201879A true NL8201879A (en)||1982-12-16|
Family Applications (1)
|Application Number||Title||Priority Date||Filing Date|
|NL8201879A NL8201879A (en)||1981-05-19||1982-05-07||Building construction.|
Country Status (4)
|AU (1)||AU547716B2 (en)|
|BE (1)||BE893209A (en)|
|GB (1)||GB2098654B (en)|
|NL (1)||NL8201879A (en)|
Families Citing this family (5)
|Publication number||Priority date||Publication date||Assignee||Title|
|AU607139B2 (en) *||1986-06-03||1991-02-28||Waco Kwikform Pty. Limited||Hydraulic self climbing formwork|
|AU597836B2 (en) *||1987-05-01||1990-06-07||Grocon Pty Ltd||Wall casting system|
|DE4302197A1 (en) *||1993-01-27||1994-07-28||Peri Gmbh||Climbing device, in particular for a climbing frame|
|CN100451274C (en) *||2003-10-29||2009-01-14||一级方程式自驱动筛有限公司||A lifting assembly for a shutter to allow continuous casting|
|AU2004285987B2 (en) *||2003-10-29||2010-05-13||Formula One Self Driving Screens Pty Ltd||A lifting assembly for a shutter to allow continuous casting|
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|A85||Still pending on 85-01-01|
|BV||The patent application has lapsed|