Self-resetting building structure and construction method of prefabricated suspended floor

Abstract

The invention relates to a fabricated suspension floor system self-resetting building structure and a construction method. Prefabricated steel beams (2) and steel box type section ring beams (5) are aligned to be fixedly connected through connecting steel plates (11), the steel box type section ring beams (5) are connected with steel multi-functional connecting members (3) between precast reinforced concrete columns (1) through steel suspenders (4), composite floors can be installed on the prefabricated steel beams (2), the steel box type section ring beams (5), the prefabricated steel beams (2) and the composite floors jointly form floor systems, and vertical loads borne by the floor systems are transferred to the steel multi-functional connecting members (3) between the precast reinforced concrete columns (1) through the steel suspenders (4). The method comprises the steps that 1, bottom-layer columns are installed; 2, the steel box type section ring beams on the second floor are temporarily fixed; 3, the floor system of the second floor is installed; 4, the steel multi-functional connecting members and supporting rods are installed; 5 the step 2 to the step 4 are repeatedly executed to complete construction of all standard layers; 6, construction of the floor on the top layer is completed; and (7) all layers of floor systems are installed in place.

Description

technical field [0001] The invention relates to the self-resetting construction technology of an assembled suspended floor. Background technique [0002] The prefabricated structure is widely used in industrial and civil buildings because most of its components are standardized in the factory, the components can be standardized, the manufacturing precision is high, and it also has the advantages of less on-site operations, simple construction, and fast construction speed. In addition to reducing various pollution generated by on-site operations, prefabricated buildings can also reduce labor costs and have higher control accuracy. However, the integrity of the current prefabricated structure is lacking compared with the cast-in-place structure, and it has the disadvantage of poor seismic performance, while the beam ends and column ends of the overall cast-in-place frame structure are subjected to large bending moments and The shear force and joint performance requirements ar...

AI Technical Summary

Problems solved by technology

However, the integrity of the current prefabricated structure is lacking compared with the cast-in-place structure, and it has the disadvantage of poor seismic performance, while the beam ends and column ends of the overall cast-in-place frame structure are subjected to large bending moments and Shear force and joint performance requirements are high, and the component damage caused by the earthquake is not easy to repair after the earthquake

[0003] Published in the "Journal of Nanjing Institute of Architectural Engineering" (No. 3, 1996, pages 31-34), the paper "A New Seismic Structural System for Suspension Floors with Interlayers", the system discussed is used for traditional cast-in-place concrete structures, concrete buildings The self-weight of the cover is relatively large, and the self-weight load needs to be transmitted to the frame beams on the upper floor. Therefore, these frame beams will bear the load of the two floors, so that the frame beam section size needs to be designed larger to overcome the load effect, and the larger frame beam section It will inevitably make the beam-to-column stiffness ratio difficult to meet the design requirements of strong columns and weak beams, and at the same time, the beam ends must bear a large bending moment and shear force; It is more difficult to design and adjust the frequency of the floor when it is used as the mass block in the tuned mass damper

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