Design and construction method of a prefabricated uhpc thin shell
A construction method and prefabricated technology, which can be applied to formwork/formwork/work frame, on-site preparation of building components, construction, etc., which can solve the problems of rough surface of mold, long processing time of positive single-sided mold, waste of resources, etc. , to achieve the effect of easy installation, quick disassembly, and reduced thickness and weight
Active Publication Date: 2021-02-09
SOUTHEAST UNIV
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[0006] Purpose of the invention: In view of the waste of resources caused by disposable molds, the long processing time of milling and processing regular single-sided molds, and the rough surface of the mold, this invention proposes a design and construction method for assembled UHPC thin shells
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[0065] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0066] The design and construction method of a prefabricated UHPC thin shell according to the present invention includes shape design, deformation and stress analysis of the prefabricated UHPC thin shell, making a positive mold, making a negative mold, making a UHPC thin shell, on-site Assembly, the overall design process such as figure 1 shown.
[0067] Step 1: According to the appearance characteristics of the UHPC thin shell unit 5, the shape design of the thin shell unit is carried out to obtain the three-dimensional mesh model of the UHPC thin shell unit 5; the shape of the thin shell unit is a spatial surface with a certain thickness.
[0068] A plurality of UHPC thin shell units 5 are combined to form an outdoor structure with a sense of space enclosure, including various combinations, and each thin shell unit has exac...
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Abstract
The invention discloses a design and construction method of an assembled UHPC thin shell, in which a plurality of thin shell units are manufactured through one mould. It adopts the method of factory prefabrication and on-site assembly, which can be assembled repeatedly. The technical features of the present invention include: (1) Multiple UHPC thin shell units are combined to form an outdoor structure with a sense of space enclosure, and there are multiple ways of combination. (2) The EPS plastic conformal single-sided mold is made with a CNC hot wire cutting machine, and the surface is smooth. (3) Based on the positive mold, the concrete negative single-sided mold is manufactured by spraying technology. (4) Based on the negative mold, the UHPC thin shell unit is manufactured by spraying process. (5) Metal connectors are set on the ground of the construction site, which are fixed to the metal connectors on the edge of the thin shell unit, so as to facilitate on-site assembly. The invention only needs a small mold to build a larger thin shell structure, and there are multiple combination modes between the thin shell units.
Description
technical field [0001] The invention belongs to the field of construction engineering, and in particular relates to a design and construction method of an assembled UHPC thin shell. Background technique [0002] The construction of the thin shell structure generally adopts the construction method of cast-in-place, which requires a large mold area and a curved shape. The pouring process requires the mold to have high strength and precision, and it is generally made of wood. Since the molds required for each engineering project are different, the molds cannot be reused. Under the current process conditions, the material cost and production cost of the mold are relatively high, and the one-time use method causes a waste of resources. [0003] In the thin shell engineering project, the shape design of the thin shell is first carried out by the architect, followed by the mechanical checking calculation by the structural engineer, and finally the thin shell is built by the mater...
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IPC IPC(8): E04B7/10E04G11/04E04G11/36B29C33/38
CPCB29C33/3842E04B7/102E04G11/04E04G11/36
Inventor 华好李飚张柏洲陈旭刚车毓沅
Owner SOUTHEAST UNIV