维普中文期刊产品整合服务
37篇 您的检索式:作者名="Yongjiu Shi"
    题名 作者 年代 出处 被引量
1Theoretical analysis and numerical simulation on behaviour properties of large span cable-supported structures under fire conditions显示文摘Large span cable-supported structures have been developed rapidly in China, and they always adopt high-strength steel cables as structural members. However, the modulus of elasticity and yield strength of steel material will decrease seriously under fire conditions while fire protection is unlikely to be provided for steel cable. Several typical large span cable-supported structures such as cable truss, beam string structure and prestressed cable net are studied on their structural behaviour in this paper. Theoretical formulae are derived in terms of geometrical and material nonlinearity with high temperature effect. Finite element models are also established to simulate the structural performance under fire conditions. The calculation formulae for fire-resisting design are suggested for these three types of structures, while displacement and prestressed force variation rules are also given.BAI Yin SHI YongJiu WANG YuanQing 2009Science China(Technological Sciences)2009,52,8:6
2Experimental research on behavior of 460 MPa high strength steel I-section columns under cyclic loading显示文摘To investigate the seismic behavior of I-section columns made of 460 MPa high strength steel(HSS), six specimens were tested under constant axial load and cyclic horizontal load. The specimens were designed with different width-to-thickness ratios and loaded under different axial load ratios. For each specimen, the failure mode was observed and hysteretic curve was measured. Comparison of different specimens on hysteretic characteristic, energy dissipation capacity and deformation capacity were further investigated. Test results showed that the degradation of bearing capacity was due to local buckling of flange and web. Under the same axial load ratio, as width-to-thickness ratio increased, the deformation area of local buckling became smaller. And also, displacement level at both peak load and failure load became smaller. In addition, the full extent of hysteretic curve, energy dissipation capacity, ultimate story drift angle decreased, and capacity degradation occurred more rapidly with the increase of width-to-thickness ratio or axial load ratio. Based on the capacity of story drift angle, limiting values which shall not be exceeded are suggested respectively for flange and web plate of 460 MPa HSS I-section columns when used in SMFs and in IMFs in the case of axial load ratio no more than 0.2. Such values should be smaller when the axial load ratio increases.Wang Jiaojiao Shi Gang Shi Yongjiu 2014Earthquake Engineering and Engineering Vibration2014,13,4:5
3Analysis of lateral stability of I-section aluminum beams显示文摘This paper focuses on the lateral buckling of laterally-unrestrained aluminum beams subjected to a concentrated, uniformly loading and pure-bending action. The design methods of lateral stability of aluminum beams in the current codes are discussed. The influence of material property on the lateral buckling of aluminum beams is investigated with finite element analysis (FEA) methods. Some numerical examples are given, and the results from current codes are compared with the FEA solutions. The design method on lateral stability of steel beams specified in the Chinese standard GB 50017-2003 is modified to calibrate the stability factors of aluminum beams according to the European code, British code, and American code, and the modified method is verified by FEA results. Through comparison with the available test results, the modified design method for overall stability of aluminum bending members is proposed in this paper and proved applicable in the design of lateral stability of aluminum beams.CHENG Ming SHI Yongjiu WANG Yuanqing 2006Science China(Technological Sciences)2006,49,6:4
4In vivo dissolution of poorly water-soluble drugs:Proof of concept based on fluorescence bioimaging显示文摘In vitro-in vivo correlation(IVIVC)of solid dosage forms should be established basically between in vitro and in vivo dissolution of active pharmaceutical ingredients.Nevertheless,in vivo dissolution profles have never been accurately portrayed.The current practice of IVIVC has to resort to in vivo absorption fractions(Fa).In this proof-of-concept study,in vivo dissolution of a model poorly watersoluble drug fenofbrate(FNB)was investigated by fuorescence bioimaging.FNB crystals were frst labeled by near-infrared fuorophores with aggregation-caused quenching properties.The dyes illuminated FNB crystals but quenched immediately and absolutely once been released into aqueous media,enabling accurate monitoring of residual drug crystals.The linearity established between fuorescence and crystal concentration justifed reliable quantifcation of FNB crystals.In vitro dissolution was frst measured following pharmacopoeia monograph protocols with well-documented IVIVC.The synchronicity between fuorescence and in vitro dissolution of FNB supported using fuorescence as a measure for determination of dissolution.In vitro dissolution correlated well with in vivo dissolution,acquired by either live or ex vivo imaging.The newly established IVIVC was further validated by correlating both in vitro and in vivo dissolution with Faobtained from pharmacokinetic data.Yinqian Yang Yongjiu Lv Chengying Shen Tingting Shi Haisheng He Jianping Qi Xiaochun Dong Weili Zhao Yi Lu Wei Wu 2021Acta Pharmaceutica Sinica B2021,11,4:3
5Experimental and constitutive model study of structural steel under cyclic loading显示文摘Yongjiu Shi Meng Wang Yuanqing Wang 2011Journal of Constructional Steel Research2011,,8:3
6Research on the random seismic response analysis for multi- and large-span structures to multi-support excitations显示文摘The pseudo excitation method(PEM) has been improved into a more practical form,on which the analytic formulae of seismic response power spectral density(PSD) of simplified large-span structural models have been derived.The analytic formulae and numerical computing results of seismic response PSD have been derived to study the mechanism of multi-support excitation effects,such as the wave-passage effect and incoherence effect,for the seismic response of multiand large-span structures.By using a multi-span truss as an example,the influence of multi-support excitation effects on the seismic response of such structures is studied.Zhao Bo Wang Yuanqing Chen Zhihua Shi Yongjiu Jiang Yang Wang Yihong 2015Earthquake Engineering and Engineering Vibration2015,14,3:2
7Two calculation methods for buckling reduction factors of stainless steel welded I-section beams显示文摘Yang Lu Wang Yuanqing Gao Bo Shi Yongjiu Yuan Huanxin 2014Thin-Walled Structures2014,,12:1
8Residual stress of 460 MPa high strength steel welded i section: Experimental investigation and modeling显示文摘Huiyong Ban Gang Shi Yu Bai Yongjiu Shi Yuanqing Wang 2013International Journal of Steel Structures2013,,4:1
9Analysis of seismic behaviors of multi-storey and high-rise steel structures with different layout of braces显示文摘Huang Yi Wang Yuanqing Shi Yongjiu 2008Steel Structure2008,38,5:1
10Experimental and Theoretical Analysis of the Moment-Rotation Behaviour of Stiffened Extended End-Plate Connections显示文摘Shi Yongjiu Shi Gang Wang Yuanqing 2007Journal of Constructional Steel Research2007,63,9:1
11Numerical Simulation of Steel Pretensioned Bolted End-Plate Connections of Different Types and Details显示文摘Shi Gang Shi Yongjiu Wang Yuanqing 2008Engineering Structures2008,30,10:1
12Temperature distribution in a long-span aircraft hangar显示文摘PEI YONGZHONG BAI YIN SHI YONGJIU 0,,02:1
13Fracture prediction of welded steel connections using traditional fracture mechanics and calibrated micromechanics based models显示文摘Wang Yuanqing Zhou Hui Shi Yongjiu 0,,03:1
14Finite element anlysis and test on bolted end-plate connections in steel portalframes 显示文摘Shi Gang Shi Yongjiu Chen Hong 2004Advanced in Structure Engineering2004,7,3:1
15Research progress on the mechanicalproperty of high strength structural steels显示文摘BAN Huiyong SHI Gang SHI Yongjiu WANGYuanqing 2011AdvancedMaterials Research2011,25,0251:1
16Prelude显示文摘This year we celebrate the 85th anniversary of the Institute of Physics,Chinese Academy of Sciences(CAS).As an academic institution,the publication of a special issue dedicated to demonstrating the range and depth of researches it covers in theBAI Yin ZHAI JianLei SHI YongJiu WANG YuanQing 2013Science China(Physics,Mechanics & Astronomy)2013,56,12:1
17Experimental and constitutive model study of structural steel under cyclic loading显示文摘Shi Yongjiu Wang Meng Wang Yuanqing 2001Journal of Constructional Steel Research2001,67,8:1
18Mechanical and fatigue performance tests of cast aluminum alloy ZLlll adopted in structure 显示文摘WANG Yuanqing YUAN Huanxin SHI Yongjiu 2011Advanced Materials Research2011,,168170:1
19Numerical simulation of steel pretensioned bolted end-plate connections of different types and details 显示文摘Shi Gang Shi Yongjiu Wang Yuanqing Bradford M A 2008Engineering Structures2008,30,:1
20Experi- mental and constitutive model study of structural steel under cyclic loading 显示文摘Shi Yongjiu Wang Meng Wang Yuanqing 2011Journal of Constructional Steel Research2011,67,8:1
返回顶部 每页显示:
共2页 首页 上一页 第1页 下一页 末页 /2 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费