Climbing method of overturning and climbing formwork for high piers of bridges
A formwork and high pier technology, which is applied in the field of climbing and climbing formwork for high pier bridges, can solve the problems of heavy workload, troublesome operation, poor versatility, etc., and achieve the effect of high safety and convenient operation
Active Publication Date: 2019-07-09
CHINA 19TH METALLURGICAL CORP
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Problems solved by technology
[0005] When the above-mentioned device is used for climbing formwork construction, the lifting device can only drive the telescopic device to slide up and down. When the guide beam structure needs to be lifted, another lifting device must be installed on the formwork system, which not only troubles the operation, but also increases the workload of the workers. large and poor versatility, therefore, it is necessary to improve the overturning device of the self-elevating outer frame of the bridge high pier in the prior art
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[0084] figure 2 and image 3 Shown is the schematic diagram of the structure in which the lifting device is installed on the outside of the climbing formwork device in the present invention; Both the upper formwork system 2 and the lower formwork system 3 include a formwork 21 enclosing the pouring cavity of the high pier of the bridge; the outer surfaces of the formwork 21 of the upper formwork system 2 and the lower formwork system 3 are both provided with reinforced transverse corrugations 22; The reinforced horizontal back flute 22 on the two templates 21 is connected by a reinforced horizontal back flute connector 23 , so that the reinforced horizontal back flute 22 is tightly hugged on the outer surface of the template 21 .
[0085]The upper and lower ends of each template 40 of the upper formwork system 2 are provided with a bracket system 1, and the bracket system 1 includes a curved beam 11 and a straight beam 12; both ends of the straight beam 12 are provided with ...
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The invention relates to the technical field of high bridge pier creeping formworks, and provides a creeping method of a high bridge pier creeping formwork template. The creeping method comprises thefollowing steps of controlling a first reversing box and a second reversing box to be in the state of walking upwards; circularly controlling the extension stroke and the retraction stroke of a lifting driving device; controlling the first reversing box and the second reversing box to be in the state of walking downwards; circularly controlling the extension stroke and the retraction stroke of thelifting driving device; controlling the first reversing box to be in the state of ascending and preventing falling, controlling the second reversing box to be in the state of walking downwards, and controlling the extension stroke of the lifting driving device; controlling the second reversing box to be in the state of walking upwards, controlling the first reversing box to be in the state of walking downwards, and controlling the retraction stroke of the lifting driving device. According to the creeping technology of the high bridge pier creeping formwork template and a support, turning andlifting of the template and lifting of a support system can be achieved separately without the assistance of other hoisting equipment, the operation is more convenient, and the safety is higher.
Description
technical field [0001] The invention relates to the technical field of turning and climbing formwork for high bridge piers, in particular to a climbing method for turning and climbing formwork for high bridge piers. Background technique [0002] Known, the method for formwork construction of bridge high pier at present has: sliding formwork construction, climbing formwork construction, slide-turning combination construction, climbing-turning combination construction, turning-over construction, support turning-over construction. Sliding formwork, climbing formwork, combination of sliding and turning, and combination of climbing and turning are all technically required to install special embedded parts in the pier concrete under construction as load-bearing components when lifting the formwork. These embedded parts have high requirements on quality and forming process, and the installation and positioning are precise and strict. The construction of embedded parts interferes wi...
Claims
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IPC IPC(8): E01D21/00E01D19/02
CPCE01D19/02E01D21/00
Inventor 张发平李晓红
Owner CHINA 19TH METALLURGICAL CORP