This paper proposes a novel index, the extreme value of the largest principal component scores of the generalized likelihood ratio based on the statistical process control chart, to develop a structural stiffness identification method for assessing traditional Chinese mortise-tenon joints. The proposed method involves four stages. First, a generalized likelihood ratio test is conducted by transforming the collected acceleration signals into the generalized likelihood ratio matrix. Second, principal component analysis (PCA) is used to reduce data dimensionality and extract the extreme values of the first principle component scores as a novel control index. Subsequently, a statistical process control chart is drawn via the proposed control index. Finally, the ratio of the structural stiffness reduction can be evaluated by establishing the relationship between the stiffness and number of control indices outside the upper and lower control limits in the statistical process control chart. The proposed method is validated by vibration test data acquired from a traditional timber frame under reversed cyclic loads and vibration in a laboratory. The results show that (1) the proposed index performed in the statistical process control chart is able to monitor the novelty of the mortise-tenon timber joint; and (2) the proposed method can be used to assess the states of the timber structure and even predict further structural stiffness.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Structural Stiffness Identification of Traditional Mortise-Tenon Joints Based on Statistical Process Control Chart


    Contributors:

    Published in:

    Publication date :

    2018-06-20




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown



    Mortise-and-Tenon Joints of Bronze Age Seagoing Ships

    Pulak, C. | British Library Conference Proceedings | 2003


    Mortise and tenon joint car system

    ZHOU XIAOXUE | European Patent Office | 2021

    Free access

    Large heavy vehicle used rim lock ring having mortise and tenon joints

    GAO SONGQIAN / GUAN WEI | European Patent Office | 2015

    Free access

    Crane support based on mortise and tenon connection

    ZHOU ZHONGFENG / HE XINGYUN / CHEN MINGMING et al. | European Patent Office | 2023

    Free access

    Mortise and tenon mechanism unmanned aerial vehicle frame

    FU YANING / DU YI / ZHANG JIAYU et al. | European Patent Office | 2024

    Free access