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	1. Temperature Field Analysis of SRC Column to SRC Beam Joints Subjected to Heating and Cooling Fire
	SONG Tianyi,HAN Linhai,YU Hongxia
	Civil and Architectural Engineering 07 March 2011
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	Abstract:Experiments were performed on steel reinforced concrete (SRC) column to SRC beam joints subjected to fire scenarios including heating and cooling phases, and temperatures in the junction and areas certain distance away from the junction were measured during both the heating and cooling phases. The experiments tested the influence of heating time on the temperature distributions at various sections of the specimens. A three-dimensional finite element analysis (FEA) model was developed to calculate the temperature field of the SRC column to SRC beam joints. The predicted temperatures show good comparison with the test results. Based on the finite element analysis, the differences of the temperature distributions in the joint zone and the non-joint zone are analyzed and its influence to the structural fire safety design is illustrated. One important conclusion from this study is the necessity to include cooling phase in structural safety design because it is in the cooling phase of fire that the majority of joint materials reached their peak temperature.
	TO cite this article:SONG Tianyi,HAN Linhai,YU Hongxia. Temperature Field Analysis of SRC Column to SRC Beam Joints Subjected to Heating and Cooling Fire[OL].[ 7 March 2011] http://en.paper.edu.cn/en_releasepaper/content/4413268


	2. Nonlinear Responses Analysis of Pipe-soil Contact Surface
	Jin Liu
	Civil and Architectural Engineering 02 November 2009
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	Abstract:It’s necessary to consider interaction between buried pipeline and soil when analyzing its structure between pipe and soil, which comes down to the slip & separation phenomena and the determination of contact stress distribution at the contact-surface. A three-dimensional finite element analysis model of pipeline-soil system is established with nonlinear contact method under ground permanent deformation. The pipeline is considered as the space thin-shell elements, while the soil surrounding is regarded as solid elements, respectively. The responses at the interface between pipe and soil under fault movement are analyzed with finite element method. The relationship between nonlinear response of the interface and fault displacement, buried depth, ratio of pipe-diameter and wall-thickness & field condition is studied through example analysis. Besides, the contact stress at the interface is researched, and it is founded that intense nonlinear response of the pipe and soil take place near the fault. And pipe friction tangential stress far from the fault reduces as a \"parabolic\" type of approach, rather than to reduce the linear regressive.
	TO cite this article:Jin Liu. Nonlinear Responses Analysis of Pipe-soil Contact Surface [OL].[ 2 November 2009] http://en.paper.edu.cn/en_releasepaper/content/36301


	3. Progressive Collapse Analysis and Safety Assessment for Large-span Steel Truss Roof
	Jiang Xiao-Feng,Chen Yi-Yi
	Civil and Architectural Engineering 23 July 2008
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	Abstract:Due to initial local failures in accident events, domino phenomena or even progressive collapse might arise in some vulnerable structures, and consequently, robustness or collapse resistance becomes one important requirement in structural design. Because of its low redundancy, truss roof used in large-scale public buildings is one system different from that of frame and bearing wall, of which plentiful literatures can be achieved. In order to discover its potential risk, progressive collapse analysis is carried out in this paper using sophisticated tool LS-DYNA, and its redistribution mechanism of internal forces, dynamic response and failure modes are investigated. The conceptions of sensitivity element and key element are put forward to identify different responses of members due to initial failures. Finally, a Safety Assessment Method (SAM) based on static linear analysis is proposed to evaluate collapse resistance performance of truss structures.
	TO cite this article:Jiang Xiao-Feng,Chen Yi-Yi. Progressive Collapse Analysis and Safety Assessment for Large-span Steel Truss Roof[OL].[23 July 2008] http://en.paper.edu.cn/en_releasepaper/content/23028


	4. Shape Memory Alloy -Based Smart Infrastructures
	Li Hui,Ou Jinping
	Civil and Architectural Engineering 23 December 2005
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	Abstract:This paper reviews the research results of SMA-based smart infrastructures developed by authors recent years, including pseudo-dynamic constitutive model dependant on strain rate, 2 SMA-based dampers/displacement transducer, shaking table tests of a five-story steel frame attached with SMA dampers/displacement transducers at the first story, the emergent damage repair and permanent strengthening measurement of infrastructure by carbon fiber reinforcement polymer combing SMA wires.
	TO cite this article:Li Hui,Ou Jinping. Shape Memory Alloy -Based Smart Infrastructures[OL].[23 December 2005] http://en.paper.edu.cn/en_releasepaper/content/4609


	5. SHAPE MEMORY ALLOY-BASED SMART BUILDINGS
	LiHui,Mao Chenxi,J. P. Ou
	Civil and Architectural Engineering 23 December 2005
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	Abstract:Two novel shape memory alloy (SMA) dampers with special configurations are developed by authors. These dampers also simultaneously play a role of displacement transducers. The energy dissipation capability of these dampers is experimentally studied. Additionally, the sensing properties of the damper/displacement transducers are also investigated through tests. A series of shaking table tests of a building model incorporated with these SMA dampers/displacement transducers are carried out. The results indicate that SMA damper can effectively suppress the drift as well as relative displacement. The drift recorded by SMA dampers/displacement transducers is almost the same with that recorded by displacement transducer (LVDT). Therefore, the SMA damper/displacement transducer can play the role of displacement transducers with high accuracy. Considering SMA dampers/displacement transducers can measure the time history of drift between the interstory of buildings, the earthquake-induced damage of the structure can be identified by analysis of the measured drift.
	TO cite this article:LiHui,Mao Chenxi,J. P. Ou. SHAPE MEMORY ALLOY-BASED SMART BUILDINGS[OL].[23 December 2005] http://en.paper.edu.cn/en_releasepaper/content/4605


	6. Quality Evaluation of Existing Reinforced Concrete Members
	Zhong Weiqiu,Shi Lei,Zhao Shangchuan,Paul NIBASUMBA
	Civil and Architectural Engineering 06 September 2005
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	Abstract:Ageing diseases of existing reinforced concrete structures often result in the degradation of bearing capacity and rigidity. It is necessary to evaluate the current quality of the R.C. structures objectively. In the present paper, a variable weight model is presented for comprehensive quality evaluation of existing reinforced concrete members. Using attribute identification theory, weights are given according to the contribution rate of every evaluation factor to the quality of members. According to the given degree of confidence, comprehensive quality evaluation of members is carried out and the characteristic state of the quality of members is determined. Based on the method, the members can be sorted into several evaluation classes. And to the same class, further subdivision can be carried out by comprehensive scores. An engineering example shows that this method is feasible to solve the problem of quality evaluation for ageing reinforced concrete members.
	TO cite this article:Zhong Weiqiu,Shi Lei,Zhao Shangchuan, et al. Quality Evaluation of Existing Reinforced Concrete Members[OL].[ 6 September 2005] http://en.paper.edu.cn/en_releasepaper/content/2808

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