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Italy Tower Collapse in São Josédo Rio Preto-S.Paulo,Brazil

Journal of Civil Engineering and Architecture 2022年第5期16卷 270-276页

作者： Fernando Stucchi Polytechnic School USPSão PauloBrazil

This paper discusses the collapse of Italy Tower,a 16-storeybuilding,that occurred 10 years after construction,with 10 floors tumbling upside down into a side street.The designed structure and the structure as built w... 详细信息

关键词： high-rise buildings columns transition piles collapse brittle failure

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The Minaret of the Great Mosque in Algiers,a Structural Challenge

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Open Journal of Civil Engineering 2013年第2期3卷 27-39页

作者： Dan Constantinescu Dietlinde Kober Krebs&Kiefer Consulting Civil Engineers KarlsruheGermany

The Great Mosque in Algiers will be the third largest mosque in the world and its minaret the highest. The region has a high seismic risk. The project designed by a German team of architects and engineers is under construction and will be finished by 2016. Due to the minaret slenderness and to the special composite structure chosen to withstand lateral loading, the structural design faced some challenging aspects. The paper presents the design philosophy, some significant structural features and details of the minaret structure.

关键词： Earthquake Engineering high-rise buildings Composite Structures

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The Characteristics and Causes of Land Subsidence in Tanggu Based on the GPS Survey System and Numerical Simulation

The Characteristics and Causes of Land Subsidence in Tanggu ...

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中国科学院地质与地球物理研究所第11届（2011年度）...

作者： MA Fengshan~1,WEI Aihua~(1*),HAN Zhantao~2,ZHAO Haijun~1 and GUO Jie~1 1 Key Laboratory of Engineering Geomechanics,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China 2 The Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences, Shijiazhuang 050061,China

Land subsidence is a severe hazard threatening Tanggu,a flat lowland area,and evidences of land subsidence can be seen throughout the city.A new reasonable GPS network was set up in this area from 2008 to 2010.The monitoring data show that land subsidence was serious and two main subsidence cones were obviously formed In the region.One emerged at Hujiayuan,with the maximum rate reaching 60 mm/a,and the influence region enlarged prominently from 2005 to 2010.The other one occurred at Kaifaqu,which became obvious only after 2005,and it showed a decreasing tendency with time.To analyze the causes of ground settlement,a correlation between groundwater withdrawal and land subsidence was firstly made.The results confirmed that over-exploitation of groundwater was the major cause for the severe settlement In Hujiayuan.Meanwhile,the subsidence of Kaifaqu was also related to groundwater withdrawal before 2005.However,the relationship became unconspicuous after 2005.To find the cause of this abnormity,a three-dimensional finite element numerical model,coupled with groundwater flow and subsidence,was built.The simulation results indicate that the subsidence Induced by high-rise buildings is serious,but the affected range is limited and it also shows a decreasing trend with time,corresponding to the subsidence characteristics at Kaifaqu.Therefore,more attention should be paid to this hazard induced by engineering construction besides groundwater withdrawal,as more high-rise buildings are under construction in Tanggu.

关键词： land subsidence GPS subsidence cones finite element numerical model high-rise buildings

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An article on site investigation with geophysical methods in Tangshan city of China

An article on site investigation with geophysical methods in...

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中国科学院地质与地球物理研究所第十届(2010年度)学...

作者： Qingyun Di,Diquan Li,Hui cheng & Changmin Fu Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,China

The proposed Tangshan Wanda Square will be built in the center of Tangshan city,China.In this area block collapse,karst collapse,zones of buried structural fracture and ground fissures have developed.All would be disadvantageous factors affecting the construction of high-rise buildings.Therefore,site investigation using geophysical methods was performed to identify the extent of the potentially weak geological structure.This survey adopted the Controlled Source Audio-frequency Magnetotelluric method(CSAMT).The goal of CSAMT is to define the electrical characteristics,especially low resistivity anomalies, to a depth of 500 m.In view of the difficulty of data processing in a city with strong industrial interference,comparatively reliable 3D resistivity data sets in the investigated area were possible after removing the wild data,preserving the true data and comparing results among survey lines repeatedly.CSAMT result reveals the location,depth and distribution range of the karst,coal seam block,and karst fracture zone,and provides the geophysical evidence for risk assessment of the proposed high-rise building development.

关键词： CSAMT Site investigation Tangshan high-rise buildings Geophysical methods

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