Characteristics of Carbonation of Concrete using Infrared Image

Yoon, Seong-soo; Ryu, Ki-Sun; Jeon, Jeong-Bae; Park, Jin-Seon; Kim, Han-Joong

doi:10.13031/2013.29857

Cited by 2 publications

(5 citation statements)

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“…(3) Comparison of the ultimate strength calculated by simulation with that in references (Sui et al 2010 andXie et al 2015a) is shown in Table 4. (4) Different from the symmetrical hysteretic curve (Sui et al 2010) or asymmetrical hysteretic curve (Xie et al 2015a), the hysteretic curve using the restoring force model in this study had some degree of symmetry, but it was not completely symmetrical.…”

Section: Resultsmentioning

confidence: 97%

“…There was a margin of error in the ultimate strength of through-tenon and half-tenon joints during each phase calculated by the restoring force model with the actual data in literature (Sui et al 2010;Xie et al 2015a). There are two main reasons: on the one hand, there were great differences in the prototype structure, scale ratio, tree species, wood mechanical properties, and other test conditions, so the experimental data in the references used for statistics has certain discreteness.…”

Section: Discussionmentioning

confidence: 96%

“…The parameters in Tables 1 and 2 were all obtained from statistical analysis of the data in references (Zhao et al 2010;Chun et al 2011;Song 2014;Gao et al 2015;Xie et al 2015a,b;Chun et al 2016;Huan et al 2019;Su et al 2020). The data for case verification was converted from the relevant data in references (Sui et al 2010 andXie et al 2015a) by using Eq. (2), that is, the data used for case verification did not participate in the statistics of the parameters in Tables 1 and 2.…”

Section: Discussionmentioning

confidence: 99%

“…This case study used the parameters of through-tenon (Sui et al 2010) and halftenon joints (Xie et al 2015a) to develop the restoring force model. The elastic modulus of timber is 8.111 GPa, and the column diameters of through-tenon and half-tenon joints were 210 mm and 140 mm, respectively.…”

Section: Case Studymentioning

confidence: 99%

“…5. The parameters m and h are both valued by Sui et al (2010) and Xie et al (2015a). That is, the mass m of throughtenon and half-tenon are respectively 2040 and 612.2 kg; the height h of them are respectively 1.7 and 0.8 m, while the vertical loads of them are respectively 20 and 6 kN.…”

Section: Case Studymentioning

confidence: 99%

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Investigation of the restoring force model of through-tenon and half-tenon of timber with a certain level of universality

Gao

Wang

et al. 2021

BioRes

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A restoring force model of through-tenon and half-tenon joints was studied with a certain level of universality. To address the differences among data collected under different test conditions, test data collected via through-tenon and half-tenon joints were counted and fitted, and their similarities were then generalized. To better simulate the gap and stiffness degradation between the through-tenon and half-tenon joints, the skeleton curves frameworks were simplified into four phases, namely sliding, elastic, yielding, and failure. The normalized control parameters collected through the characteristics of the framework of through-tenon and half-tenon joints, as well as the different coefficients of strength degradation and stiffness degradation were calculated. The hysteretic rules of the restoring force model of through-tenon and half-tenon joints were developed. Through case study, the results show that the MAPE (mean absolute percentage error) and R2 (coefficient of determination) of experimental data in the references and simulated data of through-tenon are respectively 12.570% and 0.735, while those of half-tenon are respectively 11.763% and 0.772; and the restoring force model of through-tenon and half-tenon joints being constructed had a certain level of universality. The results demonstrated that the construction of refined finite element analysis model of Chinese ancient timber architectures can be simplified to a certain extent to meet the pressing time for seismic performance analysis of many ancient timber architectures. It provides researchers with an innovative pathway to enhance the efficiency of seismic performance analysis of ancient timber architectures.

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Section: Resultsmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Case Studymentioning

confidence: 99%

Section: Case Studymentioning

confidence: 99%

See 3 more Smart Citations

Investigation of the restoring force model of through-tenon and half-tenon of timber with a certain level of universality

Gao

Wang

et al. 2021

BioRes

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Seismic Resistance of Timber Frames with Mud and Stone Infill Walls in a Chinese Traditional Village Dwelling

Shen

Yan

et al. 2021

Buildings

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Traditional Chinese wood residences consist of timber frames with masonry infill walls or other types of infill, representing valuable heritage. A field investigation of traditional village dwellings in northern China consisting of timber frames with mud and stone infill walls was conducted. Their construction characteristics are reported, and static cyclic tests were performed on two full-size wood-stone hybrid walls with different configurations (exterior transverse wall and internal transverse wall) and no openings (doors or windows). Their failure mechanics and seismic capacity, i.e., the strength, stiffness, ductility, and energy dissipation, were investigated. The results are compared with a previous experimental study of two full-size timber frames with the same traditional structure but no infill to determine the effect of the mud and stone infill on the lateral resistance. The experimental results indicate that the stone infill has a critical influence on the lateral performance of traditional village buildings, resulting in a high lateral stiffness, high strength (>20 kN), and a high ductility ratio (>10). An increase in the vertical load leads to an increase in the lateral resistance of the timber frame with infill walls, larger for the internal transverse wall than the external gable wall. The incompatibility of the deformation between the timber frame and stone infill is the main failure reason, resulting in falling stones and collapse with undamaged timber frames. Suggestions are provided for the protection and repair of traditional wood residences in northern China.

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Characteristics of Carbonation of Concrete using Infrared Image

Cited by 2 publications

References 0 publications

Investigation of the restoring force model of through-tenon and half-tenon of timber with a certain level of universality

Investigation of the restoring force model of through-tenon and half-tenon of timber with a certain level of universality

Seismic Resistance of Timber Frames with Mud and Stone Infill Walls in a Chinese Traditional Village Dwelling

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