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PBL stiffening type flat steel box concrete plate arch and constructing method thereof

A steel box concrete and stiffening technology, which is applied to arch bridges, buildings, bridge materials, etc., can solve the problems of large shrinkage stress and cumbersome construction procedures, and achieve the effects of small shrinkage stress, high construction quality, and flexible layout methods

Pending Publication Date: 2017-10-03
CHANGAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The object of the present invention is to provide a kind of PBL (Perfobond Leiste, Chinese interpretation: perforated plate) stiffened flat steel box concrete slab arch and its construction method, which solves the complicated procedures of masonry and reinforced concrete slab arch construction in the prior art, The problem of large shrinkage stress in the arch

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  • PBL stiffening type flat steel box concrete plate arch and constructing method thereof
  • PBL stiffening type flat steel box concrete plate arch and constructing method thereof
  • PBL stiffening type flat steel box concrete plate arch and constructing method thereof

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Embodiment Construction

[0046] The present invention is described in further detail below in conjunction with accompanying drawing:

[0047] The invention provides a PBL stiffened flat steel box concrete slab arch, such as figure 1 , 2 As shown, it includes a main arch 6 assembled by one or more arch segments 1-1, and the divided length and quantity of the arch segments 1-1 are mainly determined by the hoisting capacity of the crane and the construction process. like image 3 , 10 As shown, the arch segment 1-1 includes a rectangular steel box, and several PBL stiffeners 2 are arranged on the inner wall of the steel box's top plate 1-2, bottom plate 1-3, and side web 1-4 along the axis of the arch. The steel box is filled with concrete 1-5.

[0048] Here, the present invention uses a steel box to replace the traditional steel mesh, which not only improves the structural bearing capacity, but also serves as a formwork, making construction convenient and fast. At the same time, the addition of the P...

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Abstract

The invention discloses a PBL stiffening type flat steel box concrete plate arch and a constructing method thereof. The PBL stiffening type flat steel box concrete plate arch comprises a main arch which is assembled by at least one arch section. Each arch section comprises a rectangular steel box, a plurality of PBL stiffening ribs are arranged at a top plate and a bottom plate of the steel box and the inner wall of a side web plate in the axial direction of the arch, and the steel box is internally filled with concrete. The problems that masonry and a reinforced concrete plate arch in the prior art is complex in construction process and great in retraction stress in the arch are solved. The PBL stiffening type flat steel box concrete plate arch is simple in structure, reasonable in design, convenient to construct, excellent in mechanical property, and construction quality is easy to control.

Description

technical field [0001] The invention relates to the technical field of main arch structures of steel box concrete arch bridges, in particular to a PBL stiffened flat steel box concrete slab arch and a construction method thereof. Background technique [0002] Arch bridges can be divided into slab arch, rib arch, double curved arch and box arch according to the section form of the arch ring. Slab arches are mainly divided into stone slab arches, concrete slab arches and reinforced concrete slab arches. [0003] The slate arch makes full use of the high compressive strength of stone, and has a high bearing capacity. It is often used as a small and medium-span arch bridge in areas rich in stone. Stone arch bridges have high requirements on the quality of stone materials, including integrity, homogeneity, compressive and flexural strength, etc., as well as the processing and manufacturing of arch stones and masonry technology, and the stone materials need to be provided with st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D4/00E01D19/12E01D101/24E01D101/30
CPCE01D4/00E01D19/125E01D2101/268
Inventor 刘永健张国靖韩连涛姜磊杨茂曹忠良王康宁奉思东
Owner CHANGAN UNIV
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