Settlement Monitoring of a Supertall Building Using the Kalman Filtering Technique and Forward Construction Stage Analysis

Abstract

Excessive and unexpected settlement of supertall buildings during the construction stage may affect structural safety. Floor settlement monitoring is imperative during the structural construction. The current practice is to measure floor settlement within a specific time frame and then compensate for the elevation error in the next construction stage. This posterior manner is inaccurate because it does not take account of measurement error and the real settlement in the next construction stage. This paper presents a Kalman filter based settlement monitoring approach with the aid of forward construction stage analysis. The settlement of floors in the next stage is predicted with the forward construction stage analysis. Consequently the elevation of the floor to be constructed can be pre-determined. The proposed method is demonstrated through construction settlement monitoring of the 632-m tall Shanghai Tower. The structure will be the tallest supertall building of China upon completed in 2014. It shows that this method can improve the accuracy of pre-determined elevation of supertall buildings.

Review on field monitoring of high‐rise structures

“…Su et al 134 proposed an integrated construction settlement monitoring method combining the Kalman filtering approach and the FE forward construction stage analysis (Figure 8). This method was applied to the 632‐m‐tall Shanghai Tower.…”

“…Settlement monitoring results of Shanghai tower at different construction stages 134 . (a) Elevation of the eighth floor core‐wall.…”

Research on the Reinforcement Mechanism and Safety Monitoring of Heavy‐Duty Concrete‐Encased CFST Columns

“…Xiong et al proposed that a novel subregional least squares method should be used to calculate the horizontal displacement of frame-core-tube structures with strengthened stories [12]. Furthermore, Su et al reported a settlement monitoring approach based on the Kalman filter, which has been demonstrated to improve the accuracy of the predetermined elevation of supertall buildings through construction settlement monitoring of the 632-meter-tall Shanghai Tower [13].…”

Structural health–monitoring system for roof structure of the Dalian gymnasium

“…Meanwhile, as the building technology develops, super-tall structures have been constructed all over the world which relieves the pressure caused by the shortage of land resources. A complete SHM system has been applied on the 600-m tall Canton tower (Su et al, 2014; Xia et al, 2014). Data were collected to analyze and evaluate the structural safety condition.…”