Static load test on progressive collapse resistance of fully assembled precast concrete frame structure

Zhou, Yun; Chen, Taiping; Pei, Yilin; Hwang, Hyeon‐Jong; Xiang, Huimin; Yi, Wei-Jian; Deng, Lu

doi:10.1016/j.engstruct.2019.109719

Cited by 72 publications

(26 citation statements)

References 27 publications

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“…Figure 1 shows a typical detailing of the RC sub-assemblage reference test specimens considered in this study. A total of twenty-nine sub-assemblage reference test specimens with three different scales were selected from twelve different experimental investigations [1][2][3][4][5][6][7][8][9][10][11][12]. Table 1 shows the dimensions, reinforcement ratios, and material properties of the scaled RC sub-assemblage specimens.…”

Section: Details Of Sub-assemblage Test Specimensmentioning

confidence: 99%

“…In comparison to typical RC framed structures, various structural systems and components, such as precast construction and pre-stressed concrete structures, receive less attention in the analysis of progressive collapse. The knowledge in this domain is restricted to a few studies, so more attention should be devoted to the progressive collapse analysis of such systems [10,11]. To explore the RC sub-assemblage structural behavior of, and the development of, alternate load path mechanisms during progressive collapse, Ahmadi et al [12] tested scaled RC beam-column sub-assemblages in a quasi-static loading.…”

Section: Introductionmentioning

confidence: 99%

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Benchmark Numerical Model for Progressive Collapse Analysis of RC Beam-Column Sub-Assemblages

2022

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The pertinence of the fiber element approach to enable thorough numerical investigation on the potential for progressive collapse of reinforced concrete (RC) frame structures owing to interior column exclusion is examined using twenty-nine RC sub-assemblages with five different test setups and three different test scales. A qualitative examination of the results reveals a good agreement between the test results and the outcomes of the fiber-element-based numerical model using the finite element package SeismoStruct. Moreover, minor discrepancies between the test and numerical data demonstrate the capability of the fiber-element-based model to accurately simulate the behavior of RC elements with various boundary conditions and scales under the context of progressive collapse. Given the costly nature of experimental research, test errors, and the lengthy testing process, the proposed numerical model based on the fiber element approach can be considered a viable option for analyzing structures under progressive collapse due to the interior column exclusion scenario. Engineers and researchers can use the conclusions and comments highlighted in the study as a guide to create accurate models for the analysis of RC structures subjected to progressive collapse.

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Section: Details Of Sub-assemblage Test Specimensmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Benchmark Numerical Model for Progressive Collapse Analysis of RC Beam-Column Sub-Assemblages

2022

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“…e uniaxial stress-strain relationship of concrete prescribed in GB50010-2010 [30] was employed to simulate the constitutive relationship of the concrete component (Figure 14 Advances in Civil Engineering regarded as an elastic orthotropic material with a reduced elastic modulus. e stiffness degradation is assumed to occur in the softening response in both compression and tension [36]. In this study, the corresponding parameters were defined as follows: the shape parameter was K c � 0.6667, the dilation angle was ψ � 30 ∘ , the plastic potential eccentricity was ε � 0.1, and the ratio of the biaxial stress to uniaxial stress was σ b0 /σ c0 � 1.16 according to the study by Genikomsou and Polak [37].…”

Section: Fe Model Constructionmentioning

confidence: 99%

Vibration‐Based Damage Detection of a Steel‐Concrete Composite Slab Using Non‐Model‐Based and Model‐Based Methods

Fang

Zhou

Jiang

et al. 2020

Advances in Civil Engineering

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This paper presents vibration-based damage detection (VBDD) for testing a steel-concrete composite bridge deck in a laboratory using both model-based and non-model-based methods. Damage that appears on a composite bridge deck may occur either in the service condition or in the loading condition. To verify the efficiency of the dynamic test methods for assessing different damage scenarios, two defect cases were designed in the service condition by removing the connection bolts along half of a steel girder and replacing the boundary conditions, while three damage cases were introduced in the loading condition by increasing the applied load. A static test and a multiple reference impact test (MRIT) were conducted in each case to obtain the corresponding deflection and modal data. For the non-model-based method, modal flexibility and modal flexibility displacement (MFD) were used to detect the location and extent of the damage. The test results showed that the appearance and location of the damage in defect cases and loading conditions can be successfully identified by the MFD values. A finite element (FE) model was rationally selected to represent the dynamic characteristics of the physical model, while four highly sensitive physical parameters were rationally selected using sensitivity analysis. The model updating technique was used to assess the condition of the whole deck in the service condition, including the boundary conditions, connectors, and slab. Using damage functions, Strand7 software was used to conduct FE analysis coupled with the MATLAB application programming interface to update multiple physical parameters. Of the three different FE models used to simulate the behavior of the composite slab, the calculated MFD of the shell-solid FE model was almost identical to the test results, indicating that the performance of the tested composite structure could be accurately predicted by this type of FE model.

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“…It should be noted at this point that the columns' linear-elastic behaviour was supported by the lack of damage to these elements during the test. The ABAQUS concrete damage plasticity model [12,[41][42][43][44][45] was used for the concrete in the slabs, including concrete cracking and crushing for tensile and compressive behaviour, respectively. Compression was defined from Eurocode 2 [40] considering the mechanical parameters given in Table 1.…”

Section: Fe Modelmentioning

confidence: 99%

A Parametric Computational Study of RC Building Structures under Corner-Column Removal Situations

et al. 2020

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Building progressive collapse is currently one of the hottest topics in the structural engineering field. Most of the research carried out to date on this topic has been focused on the structural analysis of the failure of one or more columns in a building to determine the Alternative Load Paths (ALPs) the structure can activate. Past research was mainly focused on extreme situations with high loads and large structural deformations and, to a lesser extent, research looked at lower loads used in design accidental situations, which requires a different set of assumptions in the analysis. This paper describes a study aimed at analysing accidental design situations in corner-column removal scenarios in reinforced concrete (RC) building structures and evaluating the available real ALPs in order to establish practical recommendations for design situations that could be taken into account in future design codes. A wide parametric computational analysis was carried out with advanced Finite Element (FE) models which the authors validated by full-scale tests on a purpose-built building structure. The findings allowed us to: (i) establish design recommendations, (ii) demonstrate the importance of Vierendeel action and (iii) recommend Dynamic Amplification Factors (DAFs) for design situations.

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Static load test on progressive collapse resistance of fully assembled precast concrete frame structure

Cited by 72 publications

References 27 publications

Benchmark Numerical Model for Progressive Collapse Analysis of RC Beam-Column Sub-Assemblages

Benchmark Numerical Model for Progressive Collapse Analysis of RC Beam-Column Sub-Assemblages

Vibration‐Based Damage Detection of a Steel‐Concrete Composite Slab Using Non‐Model‐Based and Model‐Based Methods

A Parametric Computational Study of RC Building Structures under Corner-Column Removal Situations

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