Structural damage detection of elevated circular water tank and its supporting system using geodetic techniques

• Autorzy: Zeidan Zaki , Beshr Ashraf A. A. , Sameh Sara

Identyfikatory

DOI

10.24425/gac.2020.131080

• Języki publikacji: EN

Abstrakty

EN

Water is the main source of daily life for everyone and everywhere in the world. Sufficient water distribution depends on the place and design of water tank in certain areas. Water storage tanks are relatively flexible structures and they can tolerate greater settlements than other engineering structures. Deformation of tanks may cause severe damages to tank or even loss of life and injury to people, so monitoring the structural deformation and dynamic response of water tank and its supporting system to the large variety of external loadings has a great importance for maintaining tank safety and economical design of manmade structures. This paper presents an accurate geodetic observations technique to investigate the inclination of an elevated circular water tank and the deformation of its supporting structural system (supporting columns and circular horizontal beams) using reflector-less total station. The studied water tank was designed to deliver water to around 55000 person and has a storage capacity about 750 m3. Due to the studied water tank age, a non-uniform settlement of tank foundation and movement of pumps and electric machines under tank’s body will cause stress and strain for tanks membrane and settlement of sediments. So the studied water tank can tend to experience movement vertically, horizontally or both. Three epochs of observations were done (July 2014, September 2014 and December 2014). The results of the practical measurements, calculations and analysis of the interesting deformation of the studied elevated tanks and its supporting system using least squares theory and computer programs are presented. As a results of monitoring the water storage tank, circular reinforced concrete beams and columns at three monitoring epochs. The body of water storage tank has an inclination to the east direction and the value of inclination is increased with the time.

Słowa kluczowe

EN

water tank; deformation; inclination; accuracy; total station

PL

zbiornik na wodę; deformacja; nachylenie; dokładność; tachimetr

• Wydawca: Komitet Geodezji PAN
• Czasopismo: Geodesy and Cartography
• Rocznik: 2020
• Tom: Vol. 69, no. 1
• Strony: 117--140
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Zeidan Zaki

• Mansoura University, Faculty of Engineering, Mansoura city – Egypt-Postal code 35516, Egipt

autor

Beshr Ashraf A. A.

• Mansoura University, Faculty of Engineering, Mansoura city – Egypt-Postal code 35516, Egipt

autor

Sameh Sara

• Badr University in Cairo, Faculty of Engineering, Egipt

Bibliografia

• [1] American Concrete Institute (2014). Building Code Requirements for Structural Concrete. Farmington Hills, USA: ACI Committee 318.
• [2] Beshr, Ashraf A.A. (2012). Monitoring the structural deformation of tanks. Germany: LAP LAMBERT Academic publishing (ISBN: 978-3-659-29943-8).
• [3] Beshr, Ashraf A.A. (2014). Structural Data Analysis for Monitoring the Deformation of Oil Storage Tanks Using Geodetic Techniques. Journal of Surveying Engineering, 140(1), 44–51. DOI: 10.1061/(ASCE)SU.1943-5428.0000120.
• [4] Gairns, C. (2008). Development of semi-automated system for structural deformation monitoring using a reflectorless total station. M.Sc.E. thesis. Canada: University of New Brunswick, Department of Geodesy and Geomatics Engineering.
• [5] Lutes, J.A. (2002). Automated dam displacement monitoring using a robotic total station. Technical Report No. 214. Canada: Department of Geodesy and Geomatics Engineering, University of New Brunswick.
• [6] Pukanská, K., Gajdošík, J., Marcian, M. and Bartoš, K. (2014). Determination of Deformations of a High-Capacity Tank Using the Technology of Terrestrial Laser Scanning. American International Journal of Contemporary Research, 4(4), 38–45.
• [7] Vanatwerp, R.L. (1994). Engineering and Design-Deformation Monitoring and Control Surveying.Washington DC, USA: U.S Army Corps of Engineering.