Ultra-high-performance concrete-partial profile steel combined beam unit, ultra-high-performance concrete-profile steel combined beam unit and combined beam

An ultra-high-performance, concrete beam technology, which is applied in bridges, bridge parts, bridge construction, etc., can solve the problem that the durability of bridges cannot meet the design service life, reduce the connection strength of bridge decks at joints, and affect the traffic flow of roads Pedestrian safety and other issues, to achieve the effect of simple structure, firm and reliable connection, and enhanced structural strength
CN110331648APending Publication Date: 2019-10-15HUNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN UNIV
Publication Date
2019-10-15

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Abstract

The invention discloses an ultra-high-performance concrete-partial profile steel combined beam unit. An ultra-high-performance concrete beam comprises a top plate, a web and a bottom plate, half notches are formed in the ends of the top plate, a top plate reinforcing steel plate which is arranged in the longitudinal direction of a bridge is arranged at each of the half notches, one ends of the topplate reinforcing steel plates are fixedly arranged in the top plate, and the other ends of the top plate reinforcing steel plates extend out of the end of the top plate, a web reinforcing steel plate which is arranged in the longitudinal direction of the bridge is arranged in the web, one end of the web reinforcing steel plate is fixedly arranged in the web, and the other end of the web reinforcing steel plate extends out of the end of the web. The invention further provides an ultra-high-performance concrete-profile steel combined beam unit. The invention further provides a combined beam formed by connecting the two beam units. By means of the ultra-high-performance concrete-partial profile steel combined beam unit or the ultra-high-performance concrete-profile steel combined beam unit,the connection structure at the joint of the adjacent beam units is simple and reasonable, and the stress performance is excellent.
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Description

technical field

[0001] The invention belongs to the field of bridge structures, in particular to a composite beam unit and a composite beam. Background technique

[0002] Ultra-high performance concrete (UHPC) is an ultra-high-performance fiber-reinforced cement-based composite material with high compressive strength, high tensile strength, high modulus, high ductility, and high durability. It is composed of cement, mineral admixtures, quartz Sand, quartz powder, steel fiber, water reducing agent and water are configured according to the theory of maximum density, which minimizes the defects inside the material. Due to the high strength and large elastic modulus of ultra-high performance concrete, existing engineering experience shows that ultra-high performance concrete can effectively reduce the weight of the structure and improve the utilization efficiency of the structure.

[0003] At present, a lot of technical research has been done on the structural mechanical proper...

Claims

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