Formwork-free pouring concrete bottom plate structure of steel-concrete composite beam and construction method of formwork-free pouring concrete bottom plate structure

• Main Authors: ZHANG JIANDONG, CHEN JIAFU, HUANG JIAN, HOU JUE, ZHA SHANG, LIU DUO, DENG WENQIN
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2024
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The invention discloses a reinforced concrete composite beam formwork-erecting-free pouring concrete bottom plate structure and a construction method thereof.The bottom plate structure comprises a concrete top plate and corrugated I-shaped steel, and the bottom faces of the two transverse sides of the concrete top plate are fixedly connected to upper flange plates of the corrugated I-shaped steel arranged in parallel respectively. A lower flange plate of the corrugated I-shaped steel is fixedly installed on the prefabricated corrugated combined bottom plate, the prefabricated corrugated combined bottom plate is provided with a bottom plate steel shell and concrete, a side flange plate is arranged on the top face of the bottom plate steel shell, and a corrugated cavity/corrugated table and a bolt shear key are arranged on the inner wall of a concave groove cavity of the bottom plate steel shell. High-strength bolts are arranged in the internal thread sleeves and the bolt holes in a penetrating manner to fixedl