2008, 30(2):1-6. DOI: 10.11835/j.issn.1674-4764.2008.02.001
Abstract:City street construction in the Three Gorges Reservoir Area has a specific character. Some streets have characteristics adapted to changing water levels in the reservoir and to topography. In this paper, we analyze the development course and building char
2008, 30(2):7-13. DOI: 10.11835/j.issn.1674-4764.2008.02.004
Abstract:Immigration and town construction in the Three Gorges Region of the Chang Jiang (Yangtze) River caused “constructive breakage” of the regional cultural tradition and social structure that cannot be conserved. Based on related historical data, the regiona
WU Yichun , LI Shuqing , YI Zheng , LIU Li , WANG Xing
2008, 30(2):14-17. DOI: 10.11835/j.issn.1674-4764.2008.02.005
Abstract:Solid waste pollution in small towns of the Three Gorges Reservoir area in P. R. China has become increasingly serious. To solve this problem and discover the properties of solid waste, on site investigations were conducted in the region in thirteen typic
2008, 30(2):18-22. DOI: 10.11835/j.issn.1674-4764.2008.02.008
Abstract:Looking for the “soul” the buildings have lost, and considering the meaning of the society and culture for the building formation on a particular site, there are rigorous and urgent tasks in construction development nowadays to transfer theoretical unders
ZUO Jin , ZHOU Tiejun , LIN Ling
2008, 30(2):23-26. DOI: 10.11835/j.issn.1674-4764.2008.02.009
Abstract:Experiences of and lessons drawn from evacuations and refugetaking when earthquakes and accompanying secondary disasters occur indicate that the medium and smallsized city parks are important refuges and fire isolation belts in emergencies. Aiming at t
2008, 30(2):27-31. DOI: 10.11835/j.issn.1674-4764.2008.02.012
Abstract:Spread foundations are applied widely in foundation engineering due to their easy, simple construction and low costs. Because the stiffness of the surrounding rock is higher than that of the foundation, the upward pressure and stress response of a foundat
JIN Xiaoguang , LI Xiaohong
2008, 30(2):32-36. DOI: 10.11835/j.issn.1674-4764.2008.02.013
Abstract:Excavation of an intersection tunnel between independent double tunnels leads again to stress release and redistribution in the surrounding rock and the support structure of the chief tunnel, resulting in change of mechanical behavior of the rock mass an
FU Jianping , CHENG Jingzhou , Pi Tianxiang , BAI Shaoliang
2008, 30(2):37-42. DOI: 10.11835/j.issn.1674-4764.2008.02.016
Abstract:Coupling beams combining two coupled walls are the primarily energy dissipating elements in the coupled walls and play a key role in improving ductility. It is proved by the test outcome at home and abroad that the shear failure happening early cannot be
2008, 30(2):43-46. DOI: 10.11835/j.issn.1674-4764.2008.02.017
Abstract:Starting with the governing equations of threedimensional elasticity problems in rectangular coordinate system, constructing a decoupled transform and getting the uncoupled state equations; the transfer matrix of a single soil layer is obtained by employ
2008, 30(2):47-52. DOI: 10.11835/j.issn.1674-4764.2008.02.019
Abstract:An elastoplastic damage constitutive model based on incremental theory is deduced in strain space.A mesoscopic numerical model to study the progressive failure process and the nonlinear mechanical behavior of heterogeneous rock is established in combination with an elastoplastic damage constitutive for rock mesoscopic element.The failure elements deleting method is used to simulate crack propagation in program.The calculation results achieved by numerical simulation and practical projects application agree well with those of in-situ tests,which illuminates that elastoplastic damage mesoscopic model could reflect local plastic characteristics of fractured rock masses.Three-dimension marble model is more reflect mesoscopic failure than two-dimension model.The failure element deleting method is good at showing explicitly crack propagation.It is proven that the numerical model is right and feasible.The failure elements deleting method solves the difficult problem of FEM to simulate the propagation.The model and method might be valid in practical projects.
LUAN Changqing , TANG Yiqun , LIN Bin
2008, 30(2):53-56. DOI: 10.11835/j.issn.1674-4764.2008.02.021
Abstract:In this paper, based on the uniaxial compression tests, consolidated undrained shear tests,consolidation drainage shear tests of Malan loess with different water contents, and based on understanding deeply of peculiar physicomechanical property of Malan
CHEN Song , LIU Zhanfang , LI Siping
2008, 30(2):57-60. DOI: 10.11835/j.issn.1674-4764.2008.02.024
Abstract:In the framework of porous media model developed from mixtures theories, Solid skeleton of soft clay was viewed as elastoviscoplastic material,and an elastoviscoplastic model of saturated soft clay was established. According on the model of saturated so
LIU Peng , LIU Hui , ZHENG Kaifeng
2008, 30(2):61-65. DOI: 10.11835/j.issn.1674-4764.2008.02.025
Abstract:The construction method of concreting layer by layer and segment by segment could reduce the use of steel and save construction cost, when concrete box arch ring was built castinplace with aid of arch centering. According to the simulation of largescal
LIU Chunmao , DONG Jie , BIAN Chengxin
2008, 30(2):66-70. DOI: 10.11835/j.issn.1674-4764.2008.02.028
Abstract:Directing toward the flow design of cantilever antislide piles, the thesis which is based on foundation coefficient method and finite element method mainly analyzes service behavior influences by changing several design parameters, such as crosssection
SHAO Jian-hua , GU Qiang , SHEN Yong-kang
2008, 30(2):71-74. DOI: 10.11835/j.issn.1674-4764.2008.02.030
Abstract:The effectiveness of equivalent strip model calculating the horizontal ultimate bearing capacity of multi-story steel plate shear walls(SPSW)by using the software SAP2000 to make Pushover analysis was demonstrated by comparing the simulated values with results from experimental studies performed by different researchers.The effect of different slenderness ratios on the ultimate bearing capacity of four-story single-span SPSW and four-story three-span dual steel shear walls system subjected to the inverse triangular load was obtained by the verified analytical model,which was compared with the performance of corresponding bare frames.The slenderness ratio of 250~300 is suggested for the design of SPSW.
NIE Shaofeng , ZHOU Tianhua , ZHOU Xuhong , GONG Xin
2008, 30(2):75-79. DOI: 10.11835/j.issn.1674-4764.2008.02.032
Abstract:The deformation behavior of composite wall to resist horizontal load is analyzed in this paper.The design suggestions and formulas for calculating lateral stiffness of such composite wall under static loadings are proposed by using the method of equivalen
2008, 30(2):80-84. DOI: 10.11835/j.issn.1674-4764.2008.02.033
Abstract:The sensitivity genetic algorithm is developed in order to carry out effectively the inversion analysis of the diagnosis of the structure damage. The genetic algorithm with the technique of sensitivity can not only reduce the operation time of the program
WANG Liankun , HAO Jiping , ZHANG Junfeng , WANG Menghong
2008, 30(2):85-89. DOI: 10.11835/j.issn.1674-4764.2008.02.036
Abstract:In order to correctly describe the lateraltorsion buckling and warping deformations, and to satisfy the incremental virtual displacement principle, the solution of equilibrium differential equations under stretchbending, compressionbending, pure bendin
HUANG MingKui , LI Bing , WEN Yang
2008, 30(2):90-93. DOI: 10.11835/j.issn.1674-4764.2008.02.037
Abstract:The physical and geometrical characteristics of the concrete filled steel tube can be reflected through the restraining effect coefficient. The restraining effect coefficient could reflect not only the steel content, but also externalize the confining act
2008, 30(2):94-97. DOI: 10.11835/j.issn.1674-4764.2008.02.040
Abstract:Chained regularity of perilous rock is mainly a describtion for the avalanche order of the group perilous rock. The core of the study on chained regularity of perilous rock is to confirm the avalanche time of each perilous rock suffering from different lo
FU Dongliang , QIAN Zhendong
2008, 30(2):98-102. DOI: 10.11835/j.issn.1674-4764.2008.02.041
Abstract:In order to assess the shearing properties, some types of mixtures with different aggregate gradations are subjected to the single penetration test. The results show that the shearing properties of the mixtures are obviously influenced by the gradations.
2008, 30(2):103-107. DOI: 10.11835/j.issn.1674-4764.2008.02.044
Abstract:Perilous rock is a kind of typical disaster and characterized by multitudinous structural planes; when the disaster happens, only one of the planes is the control fissue and the others are secondary. In this paper, the authors have done some attempts for
ZHANG Jian , ZHANG Xunbin , CHEN Tao , HUANG Zong-ming
2008, 30(2):108-112. DOI: 10.11835/j.issn.1674-4764.2008.02.045
Abstract:To investigate the influence of accidental eccentricity, embedded-in foundation condition and other factors on the ultimate strength of the RC slender frame column for Chongqing Grand Theatre, a nonlinear analysis of the local frame composed of peripheral
JIANG Shaojie , JIANG Chongguo
2008, 30(2):113-115. DOI: 10.11835/j.issn.1674-4764.2008.02.048
Abstract:Prediction of water demand is a complex system affected by a mass of data and influencing factors together. Nowadays, most of the forecasting methods are single model ones. They reflect only part of the system. In view of this situation, a combined model
JING Ping , JIA Haifeng , XU Bixia
2008, 30(2):116-120. DOI: 10.11835/j.issn.1674-4764.2008.02.049
Abstract:The index system and assessment methods for urban sustainable development are very popularly used, but the development trend prediction and forewarning analysis are rarely done. The GM(1,1) model is a specific one in the process of forecasting with littl
YANG Jian , LI Dongwei , LI Dou , WANG Kehao , CHU Wenhai
2008, 30(2):121-123. DOI: 10.11835/j.issn.1674-4764.2008.02.052
Abstract:This paper studied the ABR treating artificial water compounded with starch and glucose and analyzed the ABR technology characteristic and operation stability. In the meantime it studies and discusses the phases separation phenomenon that anaerobic ABR a
LIU Yali , ZHANG Zhi , DUAN Xiuju
2008, 30(2):124-127. DOI: 10.11835/j.issn.1674-4764.2008.02.053
Abstract:The Shuanglong-lake is a shallow lake in the urban area, once it had been a serious typical eutrophic lake. After comprehensive harnessing, the water quality of the lake has been improved greatly. By testing the distribution of its primary productive for
LI Sha , ZOU Jin , ZHANG Tianjin
2008, 30(2):128-131. DOI: 10.11835/j.issn.1674-4764.2008.02.056
Abstract:In recent years, lots of heat pump systems have been applied for district heating. In order to insure safe and efficient running of these systems, perfect load control methods are necessary. In this paper, the load matching problem between heat pump syst
ZHANG Zhiqiang , HU Ling , CHEN Hong
2008, 30(2):132-134. DOI: 10.11835/j.issn.1674-4764.2008.02.057
Abstract:Abstract:In the modern society due to the increasingly high requirements on the environment circumstances, it is imperative to study the insulation coating.This paper introduces the testing method and heatinsulating principle of the building external wal
PENG Jiahui , HAN Shun , ZHANG Jianxin , CHEN Mingfeng , ZHANG Guihong
2008, 30(2):135-137. DOI: 10.11835/j.issn.1674-4764.2008.02.060
Abstract:The influences of the types, dosage and length of fibers on EPS thermal insulating mortar were studied. The results show that the addition of fibers have obvious reinforcing effects on EPS thermal insulating mortar. With the addition of polypropylene fib
JIAO Chujie , ZHANG Chuanmei , ZHANG Wenhua
2008, 30(2):138-145. DOI: 10.11835/j.issn.1674-4764.2008.02.061
Abstract:In order to effectively alleviate the increasingly serious environment problem of waste rubbers, an advice of adding the recycled ground rubbers into concrete to produce the rubcrete was put forward which aimed at change of the waste rubbers from the bla
BAO Lixin , WU Guosong , XU Jili , HE Ming
2008, 30(2):146-148. DOI: 10.11835/j.issn.1674-4764.2008.02.064
Abstract:In the highway construction in mountain area, there are often high side slopes around 100 metres high; for the highway constructed, one side is precipitous high mountain, the other side is a deep gorge or a river. The common methods for high side slope t
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