Erecting method of slab-girder separated high-support formwork and support for multi-story and high-rise reinforced concrete structures
A reinforced concrete, high-support formwork technology, applied in formwork/formwork/work frame, on-site preparation of building components, building structure, etc. Problems such as the number of supporting bracket layers in the lower layer and the threat of plate punching bearing capacity, to achieve the effects of high safety and reliability, significant benefits, and reasonable model
Active Publication Date: 2020-08-21
UNIJES GRP
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Problems solved by technology
[0002] The traditional construction method of beams and slabs is to connect the formwork frames of the slab beams together, and the vertical rods under the beams are supported on the slabs or part of the beams on the lower floor, and the vertical load transmission between the beams and the slabs cannot be distinguished However, it is also impossible to establish an effective mechanical model to accurately calculate the number of layers of the lower-level brackets. We can only use a vague method to mix the support formwork under the beam and slab with 2 or 3 layers to deal with the super heavy load on the upper layer. The staggered load transfer of the supports not only poses a serious threat to the punching bearing capacity of the slab, but also wastes a lot of support formwork when the area of the slab girder is large
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[0050] Refer to attached picture.
[0051] The traditional construction method of super heavy beam support formwork on the upper floor of a multi-story building structure is to erect the beam-slab steel pipe as a whole, so that the vertical rod of the support transmits force between the beam and the slab in the vertical direction, resulting in an ambiguous effect, and the way of force transmission cannot be clearly defined. Therefore, it is impossible to use a quantitative calculation method to design the number of floors to be erected by the lower layer of support. The traditional method can only be used to support the three-layer support below the pouring layer. This may be the case for beams with a section height of less than 1.5 meters. Safe, if the section height of the beam is more than 1.5 meters, there are serious safety hazards. This construction method is based on the principle of mechanics, and adopts the method that the support under the beam and the support of the...
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The invention provides a slab-beam separation type high-formwork support connected support building method of a multilayered / high-rise reinforced concrete structure, which comprises the following steps: determining parameters of a support framework; building a support model with beam and slab separation and determining a building mode of beam and slab supports; determining the intensity of a lower-layer beam and slab; collecting the design variable load of the lower-layer beam and slab; determining the layer number of beam and slab connected supports; and building the support framework. The slab-beam separation type high-formwork support connected support building method of a multilayered / high-rise reinforced concrete structure has the advantage that the circulation times of slab frameworks and slab supports are greatly increased so that the construction period is quickened. The calculated model of the support framework structure is reasonable and explicit in stress; the implemented technology is advanced; and safety and reliability are high.
Description
technical field [0001] The invention relates to a construction method for fastener-type, bowl-type and wheel-type steel pipe formwork supports for super heavy girders on the upper floors of multi- and high-rise building structures. Background technique [0002] The traditional construction method of beams and slabs is to connect the formwork frames of the slab beams together, and the vertical rods under the beams are supported on the slabs or part of the beams on the lower floor, and the vertical load transmission between the beams and the slabs cannot be distinguished However, it is also impossible to establish an effective mechanical model to accurately calculate the number of layers of the lower-level brackets. We can only use a vague method to mix the support formwork under the beam and slab with 2 or 3 layers to deal with the super heavy load on the upper layer. The staggered load transfer of the supports not only poses a serious threat to the punching bearing capacity ...
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IPC IPC(8): E04G11/48E04G13/04
CPCE04G11/48E04G13/04
Inventor沈安跃吴焕东朱仙人陈永波王文学王荣王慧陈亮王露璐吕沽乾
OwnerUNIJES GRP