Abstract
A building developed by Wuhan Shimao Group in Wuhan, China, is a high-rise residence with 56 stories near the Yangtze River. The building is a reinforced concrete structure, featuring with a nonregular T-type plane and a height 179.6 m, which is out of the restrictions specified by the China Technical Specification for Concrete Structures of Tall Building (JGJ3-2010). To investigate its seismic performance, a shaking table test with a 1/30 scale model is carried out in Structural Laboratory in Wuhan University of Technology. The dynamic characteristics and the responses of the model subject to different seismic intensities are investigated via the analyzing of shaking table test data and the observed cracking pattern of the scaled model. Finite element analysis of the shaking table model is also established, and the results are coincident well with the test. An autoregressive method is also presented to identify the damage of the structure after suffering from different waves, and the results coincide well with the test and numerical simulation. The shaking table model test, numerical analysis, and damage identification prove that this building is well designed and can be safely put into use. Suggestions and measures to improve the seismic performance of structures are also presented.
Highlights
With the fast urbanization in China, the population growth in cities has led to ever-increasing demand for high-rise buildings to accommodate commercial and residential needs
Liu et al [8] carried out shaking table tests on a 1/30 scaled model with and without base isolation bearings to assess the seismic performance of an isolated museum structure in high earthquake intensity regions
Since the aim of the shaking table test is to investigate the seismic behavior of the original structure subjected to di erent intensity of earthquakes, including failure mode and mechanisms, it is necessary to use the same materials as the prototype building. e materials used for model construction are microconcrete, galvanized
Summary
With the fast urbanization in China, the population growth in cities has led to ever-increasing demand for high-rise buildings to accommodate commercial and residential needs. Liu et al [8] carried out shaking table tests on a 1/30 scaled model with and without base isolation bearings to assess the seismic performance of an isolated museum structure in high earthquake intensity regions. E above literature review suggests that the shaking table test is an essential tool to assess and verify the dynamic behavior of structures It is imperative for those structures that exceed the limits of the specification of design codes and standards. To ensure the safety of the building, it is necessary to examine the behavior of the building under seismic loading For this purpose, a shaking table test and its numerical analysis as well as structural damage identification were conducted. Suggestions and measures to improve the prototype building seismic performance will be presented
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