Seismic Resistance Properties of Improved Dry-Type Beam-Column Joint: An Experimental Research

Dry-type joints are an advanced type of sustainable beam-column connection mode used in the prefabricated concrete frame structural system. This paper proposed an improvement scheme for high-strength bolt dry-type joints and designed a new type of common bolt dry-type joints. A pseudo test involving...

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Bibliographic Details
Published in:Shock and vibration 2021, Vol.2021 (1)
Main Authors: Ma, Wei, Yang, Fan, Hu, Pan, Liang, Haiyi, Xu, Kai
Format: Article
Language:English
Subjects:
Beam-columns
Bolted joints
Concrete
Construction
Design
Ductility
Earthquake damage
Earthquake resistance
Energy dissipation
Experiments
High strength bolts
Mechanical properties
Numerical analysis
Onsite
Plastic deformation
Prefabricated buildings
Repeated loading
Simulation
Simulation methods
Yield stress
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Summary:Dry-type joints are an advanced type of sustainable beam-column connection mode used in the prefabricated concrete frame structural system. This paper proposed an improvement scheme for high-strength bolt dry-type joints and designed a new type of common bolt dry-type joints. A pseudo test involving low-cycle repeated loading is conducted to assess the seismic resistance properties of new joints including damage mode, hysteretic curve, skeleton curve, and ductility factor. Numerical simulation is applied to validate the rationality of experimental results. It is found that when the bending capacity of the end block of the beam is consistent with that of the bolt, the deformation of the bolt will no longer increase greatly after a period of large deformation; at this period, the bolt does not fully enter the plastic stage, but at this time, the end block of the beam begins to appear large cracks and enter the plastic deformation and has good energy dissipation performance.
ISSN:1070-9622
1875-9203
DOI:10.1155/2021/6681882