Evaluation of Pedestrian Comfort for a Footbridge with Hinged Piers
نویسندگان
چکیده
To study the standardized evaluation method of vibration comfort pedestrian bridges, effect transient response term is ignored based on generalized single degree freedom (SDOF) with reference to American Institution Steel Construction inc (AISC 11) specification. The resonance conditions between crowd and bridge structure are also considered, simplified an SDOF system. Then, peak acceleration under excitation directly calculated using load, carried out according German EN03 code Chinese code. For a new hinged piers, human-induced tests were obtain structural time data various load conditions, values numerical simulation method, frequency function proposed compared field measurements. results show that for normal condition density less than or equal 0.2 person/m2, maximum error 4.22% 13.28%. only 6.35% finite element results. can derive by performing modal tests, eliminating errors caused different testers due deflection It saves considerable cost economic cost, improves speed evaluation. Therefore, first in this accurately assess human-caused bridges articulated piers. Although hinged-pier column steel meets requirement vertical first-order greater 3 Hz, it recommended add TMD damping measures order improve comfort.
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ژورنال
عنوان ژورنال: Sustainability
سال: 2023
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su15139851