Dynamic load test and lateral load distribution of a modified rigid frame bridge

نویسندگان

چکیده

In order to evaluate the stress state and working performance of a rigid frame bridge after reconstruction extension, load test transverse distribution were carried out. Static is at each section main beam under action partial medium load. Dynamic used inherent fundamental frequency, damping ratio impact coefficient through pulsation sports car test. The results show that first vibration mainly from measured modal parameters, which consistent with characteristics higher pier greater flexibility. structure are low frequency small vibration, value belongs normal range among similar structures, overall stiffness normal, during less than design coefficient, indicating dynamic meets specification requirements.

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ژورنال

عنوان ژورنال: E3S web of conferences

سال: 2021

ISSN: ['2555-0403', '2267-1242']

DOI: https://doi.org/10.1051/e3sconf/202123303026