Vibrational Characteristics of Façade Frame Scaffoldings

Archives of civil engineering

article

Jarosław Bęc¹  Ewa Błazik-Borowa¹  Paulina Jamińska-Gadomska¹  Tomasz Lipecki¹ 

[1] Lublin University of Technology, Faculty of Civil Engineering and Architecture

关键词: scaffoldings;    vibrations;    comfort;    in-situ measurements;    numerical analysis;   

DOI  :  10.24425/ace.2020.134408

学科分类：建筑学

来源: Polska Akademia Nauk * Instytut Podstawowych Problemow Techniki / Polish Academy of Sciences, Institute of Fundamental Technological Research

【 摘 要 】

The paper presents analysis of the vibrational environment on scaffoldings. It is based on the results obtained in the project considering workers safety on scaffoldings. The total number of 120 façade scaffoldings was analysed over a period of two years. One of the issues considered in this project was the vibrations influence on scaffoldings and workers safety. The values of natural frequencies were obtained based on in-situ measurements of free vibrations. Analysis of the tests results made it possible to verify the elaborated numerical models. Values of natural frequencies and displacements in mode shaped from numerical modal analyses were compared with test results. Measurements of forced vibrations were also made with various sources of vibrations active at scaffoldings. The detailed numerical dynamic analysis was performed considering excitation forces variable in time. The obtained results were compared with allowable values according to the appropriate Polish standards. Most influential sources of vibrations for human comfort were indicated in the conclusions.

【 授权许可】

Unknown