Structures with Human-Induced Vibration – How Serviceability Requirement Improves Vibration Design Concept July 25, 2007
Posted by dionsiringo in Vibration, mechanical vibration, opinion, paper work.trackback
In the past few years, human body motions have quite often caused serious structural vibration problems. We have seen several excessive vibration problems caused by human motion during the service of structures. Human-induced vibrations were sometimes not considered in vibration suppression design due to the fact that the problem itself is primarily serviceability problem. Main considerations for structural dynamic design are safety against the occurrence of major vibration impact to the structures such as: earthquake, wind-induced vibration, traffic-induced vibration or/and impact-induced that might lead to structural failure at a catastrophic level. Human-induced vibrations, which were perceived only as serviceability problem in term of annoyance and disturbance to the users, accordingly have not been addressed properly in design code.
Several latest reports on cases, where human-induced vibrations were found excessive and annoying, however, have changed the common perspective on this problem. The closing of Millenium Bridge in London right after its completion due to excessive human-induced lateral vibration is one major case that took public attention. Thus following this report and some other previous cases, researcher, structural engineers and building authority have work together to accommodate users convenience requirements (serviceability) to provide better structures that suppress the anticipated human-induced vibration.
Horas Lae…
saya sedang ngambil skripsi yg topiknya mengenai floor vibration akibat aktivitas manusia pd gedung (hall). sy ingin nanya :
1. Untuk loadingnya kira2 gmn ? soalnya kan beban manusia seperti menari, melompat very complicated.
2. Mengenai Desain Guide Series dari AISC :”floor vibration due to human load”, apakah bisa saya pakai contoh2 pembebanannya ?
3. Antara bangunan baja & beton, mana yang lebih rentan terhadap vibrasi lantai ?
Thanx before……