Damage to Daikai Subway Station of Kobe Rapid Transit System and Estimation of Its Reason During the 1995 Hyogoken-Nanbu Earthquake

Yamato, Teruo; Umehara, T; Aoki, Hifumi; Nakamura, Susumu; Ezaki, J; Suetomi, Iwao

doi:10.2208/jscej.1996.537_303

Cited by 22 publications

(12 citation statements)

References 2 publications

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“…The damage to the cut and cover tunnels of subways especially drew attention 1) because underground structures had been considered to be relatively safe from earthquake effects when compared with structures above the ground. In most cases, except for important facilities and those constructed in soft subsoil, a seismic resistant design had not been considered.…”

Section: Introduction Introduction Introduction Introduction Introducmentioning

confidence: 99%

Seismic Design of Cut and Cover Tunnel Based on Damage Analyses and Experimental Studies.

Nishiyama¹,

Muroya²,

Haya³

et al. 1999

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Section: Introduction Introduction Introduction Introduction Introducmentioning

confidence: 99%

Seismic Design of Cut and Cover Tunnel Based on Damage Analyses and Experimental Studies.

Nishiyama¹,

Muroya²,

Haya³

et al. 1999

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“…Most researchers believe that the collapse of the Dakai subway station was caused by the insufficient horizontal shear capacity in the center columns. [7][8][9][10][11][12][13][14] Huo et al 9,10 performed an earthquake response analysis on the Daikai station and adjacent tunnel, and found that the columns of station recorded a higher axial pressure due to a large structural span. The ductility of columns subjected to high axial pressure decreased and then witnessed brittle failure under horizontal shear action.…”

Section: Introductionmentioning

confidence: 99%

Seismic response and failure mechanism of underground frame structures based on dynamic centrifuge tests

Zhang

et al. 2021

Earthq Engng Struct Dyn

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During the 1995 Kobe earthquake in Japan, the Daikai subway station suffered total collapse, which made the research on the seismic failure mechanism of underground frame structures become a hot topic. The author has carried out a lot of research on earthquake failure mechanism of underground frame structures based on numerical method. To validate and further study the seismic failure response and mechanism of underground frame structures, a series of comparative dynamic centrifuge tests were carried out. The research conclusions are as follows. The vertical earthquake action significantly increased the axial pressure on the columns of an underground frame structure, reducing their horizontal deformation capacity. The columns subjected to high axial compression were prone to brittle damage under a relatively strong horizontal earthquake, which led to the overall collapse of an underground frame structure. The areas near the intersection of the ceiling slab and the sidewalls were the weak part of the underground frame structure and were vulnerable to tensile cracks under earthquake. The columns' top and bottom were the fragile parts and were prone to concrete cracking or even shear failure under an earthquake. If the columns could remain intact and effectively provided vertical support under a strong earthquake, it was beneficial to reduce the risk of the overall collapse of an underground frame structure. K E Y W O R D Sdifferent deformation capacity of top slab and columns, dynamic centrifuge test, seismic failure response and mechanism, underground frame structure, vertical earthquake action

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“…As a convenient and efficient transportation, underground subway is principally used all over the world (Chen et al, 2016), and the construction of subway has gained a rapid development in China (Ying, 2011). Because of the serious damage to the Daikai station caused by the 1995 Hanshin earthquake in Japan (Nakamura et al, 1996), there is increasing research into the seismic performance of subway stations (Chen et al, 2014b(Chen et al, , 2016Khani and Homami 2014;Yamato et al, 1996). Iida et al (1996), An et al (1997), and Huo et al (2005) studied the damage to the Daikai station caused by the earthquake and concluded that it was caused by the failure of central columns that led to the collapse of the top plate.…”

Section: Introductionmentioning

confidence: 99%

Effects of central column aspect ratio on seismic performances of subway station structures

Chen

Liu

2017

Advances in Structural Engineering

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The subway station structures have a contradiction in its design of the cross section of the central columns: larger aspect ratio increases the longitudinal traffic capacity, yet decreases the lateral seismic capacity. However, both capacities are important. Thus, finding a reasonable aspect ratio has become a significant problem to be studied in depth. In this article, a series of time history analyses are carried out on a typical two-story three-span subway station structure, and ultimate bearing capacity analysis of isolated columns of various sizes is performed. The static axial compression ratio (ranging from 0.13 to 0.68) and the aspect ratio (ranging from 0.04 to 26.67) are taken as parameters, and their influence on internal force and damage to the structure are explored. It is found that the increase in axial compression ratio of the columns increases both the compression and tension damage and reduces the seismic performance of the station structure. However, the influence of increasing the aspect ratio of columns on the seismic performance of structures is more complicated. The compression and tension damage rises first (ranging from 0.04 to 1.67) and then decreases (greater than 6.67), while the tension damage of the structure increases monotonously. Finally, (0.15, 0.6) is given as the recommended aspect ratio range.Keywords aspect ratio, axial compression ratio, central column, seismic performance, subway station structure where a F is the axial compression ratio, N refers to the axial force, AC is the cross-sectional area of column, and fC is the axial compressive strength of concrete. Then, the aspect ratio (H/B, ratio of column dimension along the longitudinal direction, H, to column dimension along the transverse direction of station, B) of the cross section is selected. After the axial compression ratio and H/B have been determined, the shear span ratio, reinforcement ratio, stirrup ratio, and details of the seismic design are calculated. The selection of an appropriate H/B should be considered from two perspectives: the lateral seismic capacity and the longitudinal traffic capacity of the subway station structures. Because the longitudinal size of subway station

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Damage to Daikai Subway Station of Kobe Rapid Transit System and Estimation of Its Reason During the 1995 Hyogoken-Nanbu Earthquake

Cited by 22 publications

References 2 publications

Seismic Design of Cut and Cover Tunnel Based on Damage Analyses and Experimental Studies.

Seismic Design of Cut and Cover Tunnel Based on Damage Analyses and Experimental Studies.

Seismic response and failure mechanism of underground frame structures based on dynamic centrifuge tests

Effects of central column aspect ratio on seismic performances of subway station structures

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