Experimental investigation into stressing state characteristics of large-curvature continuous steel box-girder bridge model

Shi, Jun; Li, Weitao; Zheng, Kaikai; Yang, Kangkang; Zhou, Guangchun

doi:10.1016/j.conbuildmat.2018.05.155

Cited by 33 publications

(13 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One primary function of the structural stressing sate theory is to establish corresponding criterion to accurately distinguish the qualitative leap feature through modeling structural stressing state. This qualitative leap feature is verified to comply the natural law from quantitative change to qualitative change of a system and is the common characteristic of various structural failure forms (Shi, Li, Zheng, Yang, & Zhou, 2018). In addition, this kind of structural failure characteristic also sets up a new theoretical basis to investigate the analytical method of coordinative working of the structure, promoting the rationality of structural design.…”

Section: The Concept and Function Of Structural Stressing Statementioning

confidence: 63%

Stressing State Characteristics of Reinforcement Concrete Box-Girders Strengthened With Carbon Fiber Reinforced Plastic

Xiao

Shi

Liu

et al. 2019

Journal of Civil Engineering and Management

Self Cite

View full text Add to dashboard Cite

This paper investigates structural performance of five reinforcement concrete (RC) box-girders under a combination loading of bending, shear and torsion, applying the structural stressing state theory. The measured strain data is modeled as generalized strain energy density (GSED) to characterize the structural stressing state mode. Then the Mann-Kendall (M-K) criterion is innovatively applied to detect the leap characteristics of RC box-girders' stressing state from the E'-T curves, deriving the new definition of structural failure load. Furthermore, the reinforcement effects of different Carbon Fiber Reinforced Plastic (CFRP) wrapping schemes on the behaviors of experimental RC box-girders are revealed through comparing strain modes of stirrup and longitudinal reinforcement. Finally, the method of numerical shape function is applied to reasonably expand the limited strain data for further exploring the strain distribution of cross section and analyzing the stressing state characteristics of the RC box-girders. The research results provide a new angle of view to conduct structural analysis and a reference to the improvement of reinforcement scheme.

show abstract

Section: The Concept and Function Of Structural Stressing Statementioning

confidence: 63%

Stressing State Characteristics of Reinforcement Concrete Box-Girders Strengthened With Carbon Fiber Reinforced Plastic

Xiao

Shi

Liu

et al. 2019

Journal of Civil Engineering and Management

Self Cite

View full text Add to dashboard Cite

show abstract

“…Structural responses, like strains or stress, are the most direct reflection of the working behavior and deformation of the structure, but are considered directional and limiting. Therefore, to express and model the stressing state mode of arch structures, the strain energy density (SED) was applied [25,26]. This parameter is scalar, depending on stress and strains but evading the directivity effect.…”

Section: Methods Of Modeling Structural Stressing Statementioning

confidence: 99%

Investigation on Single Tube CFST Arch Models by Modeling Structural Stressing State Based on NSF Method

et al. 2019

View full text Add to dashboard Cite

This paper investigated the behavioral characteristics of two single tube concrete-filled steel tube (CFST) arch models under different loads. Applying the numerical shape function (NSF) method, the limited strain data of arch models were interpolated to obtain more detailed strain information at unmeasured points. By numerically modeling and characterizing the structural stressing state of arches, these interpolated strains were calculated as the normalized strain energy density (SED) sum to plot the corresponding characteristic curves. Utilizing the Mann-Kendall (M-K) criterion, the qualitative characteristic load was detected from the curve and was referred to as the failure load, updating the existing definition of structural failure. Then, from the perspective of experimental strains, strain/stress fields, and stressing state submodes of internal forces obtained based on the NSF method, the working behavioral characteristics of each respective CFST arch model under loads were embodied in detail. The mutation features were distinguished from the development trend of strain/stress fields or distribution patterns of internal forces to verify the rationality of the updated failure load. Consequently, the NSF method can have a reasonable interpolation on the limited experimental data. By modeling structural stressing state, it can conduct an accurate estimation of the structural failure load and provide a reference for the future design of arch bridges.

show abstract

“…To distinguish the stressing state jump of the structure via the F j − E j,norm curve, the MK (Mann-Kenddall) method is applied [24]. The function of F j is monotonically increasing because the loading scheme is force controlled.…”

Section: Mk Criterionmentioning

confidence: 99%

“…Both problems implied that new theories and methods should be developed to solve them [23]. Zhou's structural stressing state theory explored a new way to deeply understand the structural working behavior features from the experimental strain data and provided a proper method to definite structural failure load [24,25]. In view of Zhou's theory, this paper investigated the structural working state of full-scale HMES wallboards with different openings.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Strain-Based Study on the Working State of Husk Mortar Wallboards with Openings

2020

Self Cite

View full text Add to dashboard Cite

Rice husks as common agricultural remnants with low density and good thermal conductivity properties have been used in infill walls in the northern area of China. Accordingly, many tests and numerical simulations were conducted to address a difficult issue, the inaccurate estimation on the lateral load-bearing capacity of different types of husk mortar energy-saving (HMES) wallboards. The difficulty has not been overcome so far, implying that the novel methods are anticipated to achieve the accurate estimation. This paper tests the full-scale HMES wallboards with different openings and obtains the strains at the points distributed on the wallboard sides. The experimental strains are modeled as the approximate strain energy values to produce the characteristic parameter of the HMES wallboard’s stressing state. Furthermore, the inherent working state characteristic points of HMES wallboards are revealed from the evolution of the characteristic parameter called as the normalized approximate strain energy sum, leading to the redefinition of the failure loads for the HMES wallboards. Finally, it investigates the stressing state mode evolution of the HMES wallboard around the failure loads. The achieved results provide the reference to the accurate estimation of the bearing capacity of the HMES wallboards.

show abstract

Experimental investigation into stressing state characteristics of large-curvature continuous steel box-girder bridge model

Cited by 33 publications

References 14 publications

Stressing State Characteristics of Reinforcement Concrete Box-Girders Strengthened With Carbon Fiber Reinforced Plastic

Stressing State Characteristics of Reinforcement Concrete Box-Girders Strengthened With Carbon Fiber Reinforced Plastic

Investigation on Single Tube CFST Arch Models by Modeling Structural Stressing State Based on NSF Method

An Experimental Strain-Based Study on the Working State of Husk Mortar Wallboards with Openings

Contact Info

Product

Resources

About