Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam and construction method thereof
The invention discloses a prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam. A fish-belly-shaped beam section is adopted in the midspan position of the box beam. The bottom flange of the fish-belly-shaped beam section is a concrete flange. A corrugated steel web is used as the web of the fish-belly-shaped beam section in the midspan position. Concrete box beams which are equally high are used as support beam sections. Internal-prestress tendons which are equally long are tensioned in a concrete box beam web of a support beam section of the lower flange of the midspan fish-belly-shaped beam section. Based on the prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam, a corresponding construction method is established, and the construction is safe, convenient and fast through the construction method. By means of the prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam and the construction method thereof, the rigidity of a beam body is improved substantially, the air exposure of prestressed cables of the corrugated steel web combined beam is avoided, the durability and reliability of a combined beam structure are improved substantially, and an obstacle for widely popularizing the corrugated steel web combined beam is eliminated.
Prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam and construction method thereof
The invention discloses a prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam. A fish-belly-shaped beam section is adopted in the midspan position of the box beam. The bottom flange of the fish-belly-shaped beam section is a concrete flange. A corrugated steel web is used as the web of the fish-belly-shaped beam section in the midspan position. Concrete box beams which are equally high are used as support beam sections. Internal-prestress tendons which are equally long are tensioned in a concrete box beam web of a support beam section of the lower flange of the midspan fish-belly-shaped beam section. Based on the prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam, a corresponding construction method is established, and the construction is safe, convenient and fast through the construction method. By means of the prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam and the construction method thereof, the rigidity of a beam body is improved substantially, the air exposure of prestressed cables of the corrugated steel web combined beam is avoided, the durability and reliability of a combined beam structure are improved substantially, and an obstacle for widely popularizing the corrugated steel web combined beam is eliminated.
Prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam and construction method thereof
CHEN QIFENG (Autor:in) / HAO TIANZHI (Autor:in) / GAO JIANMING (Autor:in) / QIU BO (Autor:in) / XU ZHAODONG (Autor:in) / WANG LONGLIN (Autor:in) / LUO YUEJING (Autor:in) / LI LITAO (Autor:in) / LI SHUFEN (Autor:in) / PENG RONG (Autor:in)
23.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
E01D
BRIDGES
,
Brücken
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