Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultra-high performance cement-based pi-shaped girder poured with ultra-high performance cement-based composite
The invention relates to an ultra-high performance cement-based pi-shaped girder poured with an ultra-high performance cement-based composite. The pi-shaped girder meets the following conditions: H1/B1 is equal to (0.2-1); T1/H1 is equal to (0.01-0.3); T2/B3 is equal to (0.1-0.5); B2/B1 is equal to (0.2-0.8); B3/B2 is equal to (0.1-0.5); T2/H1 is equal to (0.02-0.2); R2/R1 is equal to (0.3-0.8); R3/R2 is equal to (0.1-0.5); B1 is larger than or equal to 1500 mm and is smaller than or equal to 5000 mm; H1 is larger than or equal to 500 mm and is smaller than or equal to 3000 mm; the span L is equal to (10-200 m). According to the ultra-high performance cement-based pi-shaped girder, the grain composition of multielement cementing materials and grain composition of aggregates are optimized, and a chemical additive is used, so that the compressive strength reaches 170 MPa or above under standard curing for 28 d under the precondition that the material has good fluidity; the ultra high strength cement-based composite and a high strength rib material are adopted, the construction is reasonable, and the design is optimized, so that the whole component has the characteristics that light weight and durability are achieved, the upper structure and the deck slab are integrated, and quick prefabrication and assembly can be achieved, while the bearing capacity is guaranteed; the ultra-high performance cement-based pi-shaped girder can be applicable to quick construction of small-sized and medium-sized bridges in the fields of highways and railways.
Ultra-high performance cement-based pi-shaped girder poured with ultra-high performance cement-based composite
The invention relates to an ultra-high performance cement-based pi-shaped girder poured with an ultra-high performance cement-based composite. The pi-shaped girder meets the following conditions: H1/B1 is equal to (0.2-1); T1/H1 is equal to (0.01-0.3); T2/B3 is equal to (0.1-0.5); B2/B1 is equal to (0.2-0.8); B3/B2 is equal to (0.1-0.5); T2/H1 is equal to (0.02-0.2); R2/R1 is equal to (0.3-0.8); R3/R2 is equal to (0.1-0.5); B1 is larger than or equal to 1500 mm and is smaller than or equal to 5000 mm; H1 is larger than or equal to 500 mm and is smaller than or equal to 3000 mm; the span L is equal to (10-200 m). According to the ultra-high performance cement-based pi-shaped girder, the grain composition of multielement cementing materials and grain composition of aggregates are optimized, and a chemical additive is used, so that the compressive strength reaches 170 MPa or above under standard curing for 28 d under the precondition that the material has good fluidity; the ultra high strength cement-based composite and a high strength rib material are adopted, the construction is reasonable, and the design is optimized, so that the whole component has the characteristics that light weight and durability are achieved, the upper structure and the deck slab are integrated, and quick prefabrication and assembly can be achieved, while the bearing capacity is guaranteed; the ultra-high performance cement-based pi-shaped girder can be applicable to quick construction of small-sized and medium-sized bridges in the fields of highways and railways.
Ultra-high performance cement-based pi-shaped girder poured with ultra-high performance cement-based composite
ZHAO ZHENG (Autor:in)
20.01.2016
Patent
Elektronische Ressource
Englisch
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