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Design and Engineering of Urban Interchange Ramp Bridge Structure
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作者 Yuxiao Zhang Maode Yang 《Journal of Architectural Research and Development》 2024年第2期62-67,共6页
This paper analyzes the structural design of an urban interchange ramp bridge from four aspects,which are the superstructure,pier structure,foundation structure,and deck structure design to summarize the structural de... This paper analyzes the structural design of an urban interchange ramp bridge from four aspects,which are the superstructure,pier structure,foundation structure,and deck structure design to summarize the structural design ideas of this urban interchange ramp bridge,which can be used as a reference for future construction of the same bridge. 展开更多
关键词 Interchange ramp Bridge structure design Pier structure foundation structure Bridge deck structure
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Design of foundation structures of sea-crossing bridges on serviceability limit state
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作者 金伟良 胡琦忠 +2 位作者 帅长斌 于群力 鲁征 《Journal of Southeast University(English Edition)》 EI CAS 2008年第1期74-79,共6页
The target reliability indices of the foundation structures of sea-crossing bridges on the serviceability limit state (SLS) are different from those of common bridges due to their different surroundings. Consequentl... The target reliability indices of the foundation structures of sea-crossing bridges on the serviceability limit state (SLS) are different from those of common bridges due to their different surroundings. Consequently, three levels of the target reliability indices, which are 1.5, 2. 0 and 2. 3, respectively, for those structures on the SLS are suggested based on the Joint Committee on Structural Safety (JCSS) model code, and a new method of calibrating factors of live loads, which is based on the contribution ratio of tensile stresses of reinforcing bars produced by various loads to the maximum crack width of concrete, is proposed. Finally, the calibration of the reliability-based factors of the frequent value and the quasi-permanent value of live loads is conducted by the Joint Committee (JC) method through an actual design, and the indices are proved to be reasonable and the new method is proved to be feasible. 展开更多
关键词 sea-crossing bridges target reliability JC (Joint Committee) method frequent value quasi-permanent value foundation structures
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Experimental investigation of turbulent flows around high-rise structure foundations and implications on scour 被引量:2
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作者 Dong-fang Liang Hao Jia +1 位作者 Yang Xiao Sai-yu Yuan 《Water Science and Engineering》 EI CAS CSCD 2022年第1期47-56,共10页
Many studies have been undertaken to predict local scour around offshore high-rise structure foundations(HRSFs),which have been used in constructing the Donghai Wind Farm in China.However,there have been few works on ... Many studies have been undertaken to predict local scour around offshore high-rise structure foundations(HRSFs),which have been used in constructing the Donghai Wind Farm in China.However,there have been few works on the turbulent flow that drives the scour process.In this study,the characteristics of the turbulent flow fields around an HRSF were investigated using the particle image velocimetry technique.The mean flow,vorticity,and turbulence intensity were analyzed in detail.The relationship between the flow feature and scour development around an HRSF was elaborated.The results showed that the flow velocity increased to its maximum value near the third row of the pile group.The shear layer and wake vortices could not be fully developed downstream of the last row of the piles at small Reynolds numbers.The strong flow and turbulent fluctuation near the third piles explained the existence of a longtail scour pattern starting from the HRSF shoulders and a trapezoidal deposition region directly downstream of HRSF.This laboratory experiment gains insight into the mechanism of the turbulent flow around HRSFs and provides a rare dataset for numerical model verifications. 展开更多
关键词 High-rise structure foundations(HRSFs) Turbulent flow fields Particle image velocimetry(PIV) SCOUR Sediment transport
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Analysis of Dynamic Stability of Ocean Gravity Structure Foundations
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作者 He Guangna and Cao Yalin Professor, Dalian University of Technology, Dalian 116024 . Former Postgruate Student, Dalian University of Technology, Dalian 116024 《China Ocean Engineering》 SCIE EI 1995年第2期183-192,共10页
Based on unified equivalent harmonic loading on seabed foundation and energy approach suggested by the authors, the development of dynamic pore water pressure and stability of soil foundation for the vibration of ocea... Based on unified equivalent harmonic loading on seabed foundation and energy approach suggested by the authors, the development of dynamic pore water pressure and stability of soil foundation for the vibration of ocean gravity structures excited by random wave loading are analysed. It may be seen that the present method for the study of dynamic problems of ocean gravity structure soil foundations is more reasonable and convenient. 展开更多
关键词 ocean gravity structure foundation dynamic pore water pressure dynamic stability unified equi- valent harmonic loading energy approach
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Examples of Application of Principle of Superposition in the Design of Structural Systems and in Static Analyses
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作者 Janusz Rebielak 《Journal of Mathematics and System Science》 2015年第4期150-155,共6页
The paper presents general description of combined structural system and initial analysis of an innovative system proposed as the main support structure for tall or heavy loaded buildings located on subsoil of very sm... The paper presents general description of combined structural system and initial analysis of an innovative system proposed as the main support structure for tall or heavy loaded buildings located on subsoil of very small load-carrying ability or in earthquake areas. Moreover there is presented also an innovative two-stage method of the approximate calculation of the statically indeterminate trusses. Both are invented by the author by application of the principles of the superposition method. 展开更多
关键词 Principle of superposition foundation structure tall building structure static indeterminate truss computational method.
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Discussion about the Triple Foundational Relationship between Intellect,Emotion,and Willing from the Perspective of the Phenomenology of Consciousness
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作者 NI Liangkang 《Frontiers of Philosophy in China》 2020年第3期493-508,共16页
There are at least three foundational relationships between the three conscious acts of intellect,emotion,and willing.Section 2 covers the structural foundational relationship(Brentano and Husserl in his early period)... There are at least three foundational relationships between the three conscious acts of intellect,emotion,and willing.Section 2 covers the structural foundational relationship(Brentano and Husserl in his early period):all conscious acts are intentional and can be divided into objectifying(intuition and representation)and non・objectifying acts(emotion and willing).Because a non-objectifying act cannot constitute an object,things must be based on objectifying acts and the object constituted by the latter;in this sense,a non-objectifying act is rooted in an objectifying one.Section 3 explains the genetic foundational issue with consciousness(Husserl in his later period,Scheier,and Heidegger):the stream of consciousness has its earliest origins and follows a process where it gradually unfolds.The earliest origin is the intentional willing,followed by nonintentional feelings,and,finally,the representation and thinking of willing.Intentional activity taking place afterward must be based on the conscious activity that has come already.Section 4 points out that,apart from the two aforementioned kinds of foundational relationships(i.e.structural and genetic),a third foundational relationship(i.e.dynamic)can also be found between the conscious acts of intellect,emotion,and willing in the Consciousness-only school(a Buddhist tradition in the East).In a continuous activity,the foundational relationship between the three aspects of intellect,emotion,and willing always remains encased in dynamic changes,and the change of primary and secondary roles(i.e.a change in the foundational relationship)could happen at any time.From this perspective,one can explain and resolve the confrontation and conflicts between the two former foundational relationships. 展开更多
关键词 "intellect emotion and willing "structural foundational relationship genetic foundational relationship dynamic foundational relationship
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