TY - JOUR ID - 96306 TI - Study on Natural Frequency of Frame Structures JO - Computational Engineering and Physical Modeling JA - CEPM LA - en SN - AU - Siddika, Ayesha AU - Awall, Md. Robiul AU - Mamun, Md. Abdullah Al AU - Humyra, Tasnuva AD - Department of Civil Engineering, Pabna University of Science & Technology (PUST), Pabna-6600, Bangladesh AD - Department of Civil Engineering, Rajshahi University of Engineering & Technology (RUET), Rajshahi-6204, Bangladesh Y1 - 2019 PY - 2019 VL - 2 IS - 2 SP - 36 EP - 48 KW - Natural frequency KW - Free vibration KW - stiffness KW - Mass DO - 10.22115/cepm.2019.183201.1062 N2 - Moment resisting frame (MRF) structures are gaining popularity for their high lateral stiffness. This study investigates the parameters which affecting the natural frequency of moment resisting frame structures. Steel and concrete MRF structures were studied theoretically, analyzed numerically to obtain their mode shapes and frequency of vibration for each mode. From the theoretical and analytical results, a model equation for approximation of natural frequency of these types of MRF structures is proposed. The proposed model expressed the relationship of natural frequency of MRF structure with its total mass, lateral dimension in the direction of vibration and total height. The proposed equation will be helpful and easy to calculate the fundamental frequency for study on dynamic behavior of structures. Comparison between the current guidelines and proposed model is also discussed. The proposed model is satisfying the general concept of free vibrational response, and can be applied for analyzing small and full scale structures.  UR - https://www.jcepm.com/article_96306.html L1 - https://www.jcepm.com/article_96306_8250cbdf916db84beda8fbb9b0454ba8.pdf ER -