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Review of the energy-based design theory:towards the application to self-centering systems

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Resilient Cities and Structures 2022年第1期1卷 80-97页

作者： Ge Song ying Zhou t.y.yang State Key Laboratory of Disaster Reduction in Civil Engineering Tongji UniversityShanghai 200092China International Joint Research Laboratory of Earthquake Engineering Tongji UniversityShanghai 200092China Department of Civil Engineering The University of British ColumbiaVancouver V6T1Z4Canada

Self-centering systems exhibit superior performance during earthquake shaking with lower damage and less resid-ual *** the equivalent static force design procedure is the commonly used one for most structural systems for seismic applications,the cumulative damage and the effective duration of earthquakes cannot be explicitly considered,which has significantly affected the behaviors and post-earthquake performance of self-centering ***-based design theory(EBDt),which introduces the energy demand as the crit-ical parameter to establish relations with structural damage,has gained attention around the world in recent *** EBDt can provide comprehensive considerations for structural responses and damage in design procedures,especially for self-centering ***,few researches and actual energy design projects fo-cus on the use of EBDt for self-centering *** paper intends to present thorough review of several critical issues in ***,pivotal gaps that need to be further investigated towards the application of EBDt to self-centering systems are identified and discussed in the paper.

关键词： Self-centering systems Lower damage Cumulative damage Duration of earthquakes Energy-based design theory

Earthquake and deterioration inclusive probabilistic life cycle assessment(EDP-LCA)framework for buildings

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Resilient Cities and Structures 2023年第3期2卷 30-40页

作者： Jorge Andrés Ramos Guerrero t.y.yang Omar Swei Department of Civil Engineering The University of British ColumbiaVancouverCanada

With increasing demand to reduce the carbon emission of buildings,it is crucial to quantify the life cycle envi-ronmental impact of new buildings,including the environmental impact due to natural hazards,such as *** study presents a novel comprehensive probabilistic framework to quantify the environmental impact of buildings,including uncertainties in the material extraction and production,transportation,construction,seis-mic exposure and aging(including deterioration),and end-of-life *** developed framework is used to quantify the environmental impact of a 3-story residential building located in Vancouver,*** results show that there is a significant variation in the environmental impact of the prototype building in each stage of the life cycle *** the prototype building is hit by the design level earthquake,it is expected that the median environmental impact of the prototype will be further increased by 42%.In addition,by accounting for the probability of occurrence of different earthquakes within a 50-year design life of the prototype building,the earthquake related damage will result in an additional 5%of the initial carbon emission of the *** shows the importance of including earthquake hazard and deterioration in whole building life cycle assessments.

关键词： Seismic performance evaluation Life cycle assessment Structural deterioration Performance based earthquake engineering Sustainable buildings

the rigorous adjustment of the global mean sea level budget during 2005-2015

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Geodesy and Geodynamics 2021年第3期12卷 175-180页

作者： H.Bâki Iz t.y.yang C.K.Shum Division of Geodetic Science School of Earth SciencesThe Ohio State UniversityColumbusOHUSA

Global mean sea level budget is rigorously adjusted during the period *** emphasis is to provide the best estimates for the linear rates of changes(trends)of the global mean sea level budget components during this period subject to the constraint:Earth’s hydrosphere conserves *** newly simultaneously adjusted trends of the budget components suggest a larger correction for the global mean sea level trend implicated by the other budget components’trends under the budget *** simultaneous estimation of the linear trends of the budget components subject to the constraint for closure improves their uncertainties and enables a holistic assessment of the global mean sea budget,which has implications for future sea level science studies,including the future Intergovernmental Panel on Climate Change(IPCC)Assessment Reports,and the US Climate Assessment Reports.

关键词： Climate change Misclosure Global mean sea level Rigorous adjustment

Seismic performance evaluation of innovative balloon type CLt rocking shear walls

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Resilient Cities and Structures 2022年第1期1卷 44-52页

作者： t.y.yang S.Lepine-Lacroix J.A.Ramos Guerrero J.B.W.McFadden M.A.Q.Al-Janabi Department of Civil Engineering The University of British ColumbiaVancouverCanada Canadian Construction Materials Center National Research Council CanadaOttawaCanada Department of Civil Engineering Al-Nahrain UniversityBaghdadIraq

Balloon type cross laminated timber(CLt)rocking shear walls are a novel seismic force resisting *** this paper,the seismic performance of four 12-story balloon type CLt rocking shear walls,designed by a structural engineering firm located in Vancouver(Canada)using the performance-based design procedure outlined in the technical guideline published by the Canadian Construction Materials center(CCMC)/National Research Council Canada(NRC),is *** seismic performance of the prototype CLt rocking shear walls was investigated using nonlinear time history *** nonlinear finite element models were developed using OpenSees and the nonlinear behavior of the displacement-controlled components was calibrated using available experimental data.A detailed site-specific hazard analysis was conducted and sets of ground motions suitable for the prototype buildings were *** ground motions were used in a series of incremental dynamic analyses(IDAs)to quantify the adjustable collapse margin ratio(ACMR)of the prototype balloon type CLt rocking shear *** results show that the prototype balloon type CLt rocking shear walls designed using the performance-based design procedure outlined in the CCMC/NRC technical guideline have sufficient ACMR when compared to the acceptable limits recommended by FEMA P695.

关键词： Cross-laminated timber Rocking shear walls Seismic performance CLt shear walls

Intravesical chemotherapy synergize with an immune adjuvant by a thermo-sensitive hydrogel system for bladder cancer

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Bioactive Materials 2024年第1期31卷 315-332页

作者： J.Liu t.y.yang L.Q.Dai K.Shi y.Hao B.y.Chu D.R.Hu Z.W.Bei L.P.yuan M.Pan Z.y.Qian Department of Biotherapy Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China

Surgical resection remains the prefer option for bladder cancer ***,the effectiveness of surgery is usually limited for the high recurrence rate and poor ***,intravesical chemotherapy synergize with immunotherapy in situ is an attractive way to improve therapeutic ***,a combined strategy based on thermo-sensitive PLEL hydrogel drug delivery system was *** loaded PLEL hydrogel was intravesical instilled to kill tumor cells directly,then PLEL hydrogel incorporated with CpG was injected into both groins subcutaneously to promote immune responses synergize with *** results demonstrated that drug loaded PLEL hydrogel had a sol-gel phase transition behavior in response to physiological temperature and presented sustained drug release,and the PLEL-assisted combination therapy could have better tumor suppression effect and stronger immunostimulating effect in ***,this combined treatment with PLEL hydrogel system has great potential and suggests a clinically-relevant and valuable option for bladder cancer.

关键词： thermo-responsive hydrogel Localized drug delivery Intravesical chemotherapy Immunotherapy Bladder cancer

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中国台湾都会区基桩耐震性能分析初探

长江科学院院报 2011年第1期28卷 78-86页

作者：张德文秦中天杨子逸淡江大学土木工程学系亚新工程顾问股份有限公司

结构物耐震性能评估参数包括量测震度、工程需求参数、破坏计量和决策变数等,采机率地震危害分析逐项计算各参数之年超越机率。研究采用EQWEAP程序并配合性能设计理念和中国台湾地震危害曲线以及规范建议,探讨了中国台湾都会区之桩基耐... 详细信息

结构物耐震性能评估参数包括量测震度、工程需求参数、破坏计量和决策变数等,采机率地震危害分析逐项计算各参数之年超越机率。研究采用EQWEAP程序并配合性能设计理念和中国台湾地震危害曲线以及规范建议,探讨了中国台湾都会区之桩基耐震性能。研究范例以近年来中国台湾地区具有代表性地震为主,藉由中小、设计和最大考量地震之标的最大加速度和各地区相似地盘构造的测站纪录,推求不同地震等级的桩基最大位移和弯矩,并检视其破坏特性;透过大量的参数研究和专家判断,桩基的耐震性能指针即能制订,该项分析流程可作为其它地工构造物耐震分析参考。

关键词： PBEE 基桩 PSHA EQWEAP

Highly conductive and stable iodine doped argyrodite electrolyte for all-solid-state lithium batteries

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Journal of Energy Chemistry 2025年第1期100卷 50-58页

作者： Gaozhan Liu Jing Zhang Jing yang Jinghui Chen Xingyue Xiao Xiayin yao Ningbo Institute of Materials technology and Engineering Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences

Lithium argyrodites with high ionic conductivity and low cost are considered as one of the most prospective solid electrolytes for all-solid-state lithium ***,the poor chemical stability and compatibility with lithium metal limit their ***,Li5.4PS4.4Cl1.4I0.2solid electrolyte with high ionic conductivity of 11.49 m S cm-1and improved chemical stability is synthesized by iodine *** ultra-thin Li5.4PS4.4Cl1.4I0.2membrane with thickness of 10μm can be obtained by wet coating process,exhibiting a high ionic conductivity of 2.09 mS cm-1and low areal resistance of 1.17Ω***,iodine doping could in-situ form LiI at the lithium/electrolyte interface and improve the critical current density of Li5.4PS4.4Cl1.6from 0.8 to 1.35 mA *** resultant LiCoO2/Li5.4PS4.4Cl1.4I0.2/Li battery shows excellent cycling stability at 1 C,with a reversible specific capacity of 110.1 mA h g-1and a retention of 80.5% after 1000 *** addition,the assembled LiCoO2/Li5.4PS4.4Cl1.4I0.2membrane/Li pouch cell delivers an initial discharge capacity of 110.4 mA h g-1and 80.5% capacity retention after 100 cycles.

关键词： Argyrodite electrolytes Iodine doping Ionic conductivity Stability All-solid-state lithium battery

template-free Fabrication and Luminescent Characterization of Highly Uniform and Monodisperse y_2O_2S:Sm^(3+) Hollow Submicrospheres

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Journal of Materials Science & technology 2012年第7期28卷 666-672页

作者： S.Q. Deng Z.P. Xue y.H. yang Q. yang y.L. Liu Department of Chemistry Jinan University Guangzhou 510632 China

Well dispersed and homogeneous y2O2S：Sm3＋ hollow submicrospheres were successfully achieved by a template- free solvothermal method combining with a postcalcining process. the crystalstructure and particle morphology were investigated by the X-ray diffraction （XRD）, Fourier transform infrared （Ft-IR） spectra, scanning and transmission electron microscopy （SEM and tEM）, respectively. A possible growth mechanism was proposed to reveal the formation process. Luminescence properties of the y202S：Sm3＋ long-lasting phosphor were an- alyzed by measuring the excitation spectra, emission spectra, afterglow decay curve and thermoluminescence curve. the excitation spectra indicated that the phosphor could be excited effectively by the ultraviolet-light emitting diode （UV-LED） or blue LED, and the emission spectra showed that the phosphor could emit red light from 600 to 650 nm.

关键词： yttrium oxysulfide Hollow submicrosphere Luminescence Long-lasting phosphor

Performance assessment of innovative seismic resilient steel knee braced frame

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Frontiers of Structural and Civil Engineering 2016年第3期10卷 291-302页

作者： tony t. y. yang yuanjie LI International Joint Research Laboratory of Eearthquake Engineering 1239 Siping Road Shanghai 200002 China Department of Civil Engineering University of British Columbia Vancouver BC V6T1Z4 Canada

Buckling restrained knee braced truss moment frame （BRKBtMF） is a novel and innovative steel structural system that utilizes the advantages of long-span trusses and dedicated structural fuses for seismic applications. Steel trusses are very economical and effective in spanning large distance. However, conventional steel trusses are typically not suitable for seismic application, due to its lack of ductility and poor energy dissipation capacity. BRKBtMF utilizes buckling restrained braces （BRBs） as the designated structural fuses to dissipate the sudden surge of earthquake energy. this allows the BRKBtMF to economically and efficiently create large span structural systems for seismic applications. In this paper, a prototype BRKBtMF office building located in Berkeley, California, USA, was designed using performance-based plastic design procedure. the seismic performance of the prototype building was assessed using the state-of-the-art finite element software, OpenSees. Detailed BRB hysteresis and advanced element removal technique was implemented. the modeling approach allows the simulation for the force-deformation response of the BRB and the force redistribution within the system after the BRBs fracture. the developed finite element model was analyzed using incremental dynamic analysis approach to quantify the seismic performance of BRKBtMF. the results show BRKBtMF has excellent seismic performance with well controlled structural responses and resistance against collapse. In addition, life cycle repair cost of BRKBtMF was assessed using the next-generation performance-based earthquake engineering framework. the results confirm that BRKBtMF can effectively control the structural and non-structural component damages and minimize the repair costs of the structure under different ranges of earthquake shaking intensities. this studies conclude that BRKBtMF is a viable and effective seismic force resisting system.

关键词： buckling restrained brace innovative structural system collapse simulation seismic assessment