Collapsed-RC Building Failure Mechanisms with a Forensic Engineering Approach

Etemadi, Ali; Balkaya, Can

doi:10.1061/(asce)cf.1943-5509.0001462

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…There are many factors affecting the occurrence and development of engineering structure diseases. Researchers have used forensic engineering to investigate the diseases and performance of structures by combining engineering principles with field investigations [15][16][17]. The application cases include the collapse and damage of buildings and bridges in the US [18][19][20], Italy [21][22][23], and Turkey [24,25].…”

Section: Introductionmentioning

confidence: 99%

Forensic Analysis on Damage of a Cable-Stayed Bridge without Backstays Using BIM Information

Xu,

Shi,

et al. 2024

Applied Sciences

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Serious cracks were found in the pylon of a cable-stayed bridge without backstays. Based on forensic damage investigation, this paper uses the finite element (FE) method incorporating Building Information Modeling (BIM) to analyze the causes of cracking. The BIM model is established based on the survey of design, construction, and service information of the bridge. Then, FE analysis is conducted using BIM information. Finally, the causes of cracking in different regions of the pylon are explained in detail. The results show that the FE simulation agrees well with the inspected distribution of cracks, and the causes of cracks are closely related to the pylon construction process. The main cause of the cracks is the shrinkage difference between concrete segments of different ages. The anchorage effect of stayed cables also causes inclined cracks perpendicular to the cable direction. The combination of temperature load and concrete shrinkage results in cracks at the root of the pylon, and the reduction in cable forces exacerbates the cracking.

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Section: Introductionmentioning

confidence: 99%

Forensic Analysis on Damage of a Cable-Stayed Bridge without Backstays Using BIM Information

Xu,

Shi,

et al. 2024

Applied Sciences

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“…Except traditional structural analysis methods, in recent years, many scholars have discussed engineering disease caused by forensic engineering [23,24]. As defined by ASCE, forensic engineering is the execution of engineering principles in the investigation of disease or various structural performance problems [25]. The forensic engineering process has been applied in cases in Italy [26,27], Turkey [28,29], and the US [30].…”

Section: Introductionmentioning

confidence: 99%

Cause Analysis of Pier Inclination of An Expressway Interchange Bridge: Case Study

Shi

2022

Applied Sciences

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An expressway interchange bridge was completed in 2016 in China. In 2019, disease phenomenon, including pier inclination, excessive support slip, and expansion joint damage, were found in the ramp bridge, which influenced the bridge safety and operation. This article conducts a forensic engineering field investigation and uses finite element modeling, revealing the process of disease occurrence according to the displacement cooperation relations in the pier–support–girder region. This research concludes that the main technical causes of the bridge’s disease include: (1) eccentric compression on the pier during construction and operation due to an improper design change and the asynchronous construction process; (2) asymmetric foundation settlement caused by the temporary load during construction and the weight of the filling soil during operation. Finally, the ethical factors leading to the disease are summarized based on technical causes, which can alert professional engineers to problems that should be considered in the design and construction of high-pier bridges with a soft foundation.

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