最新刊期
卷 20 ， 期 4 ， 1998
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A Varying Rigidity Method in the Analysis ofStatically Indeterminate Prestressed Concrete Structures
摘要：A varying rigidity method is simple,convenient and accurate in analysing the statically indeterminate prestressed structures.The results from this method are verified by a series of large scale experiments.344|543|0更新时间：2023-11-28 -
- 摘要：Based on the extensive study of various iterative methods, a simple but practical way of the iterative route search and acceleration is introduced into the normal displacement and arc-length methods to fit the nonlinear full-range analysis of concrete structures, by which the convergence of iteration is much improved.503|916|0更新时间：2023-11-28
- 摘要：A long term measuring method for steel strains in complex construction surroundings which involves multi_storey,multi_measuring points and long distance etc.is expounded in detail.The main factors affecting the long term strain measurement are analysed and corresponding technical measures are proposed.The conclusions given in the present paper is significant for the quality monitor in process of construction and service of highrise buildings of new structural systems.566|1105|0更新时间：2023-11-28
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- 摘要：China has a large population of 1.2 billion.To solve the housing problem of middle_low income families and realize a condition,under which people can live in peace and work contentedly,a policy housing financial system(PHFS)with Chinese characteristics must be established.PHFS is a special financial area.The combination of financial relationships,forms and methods related to the purchase,construction or rehabilitation of housing for middle_low income families,is the core of policy housing financial system.It has real meaning for studying theory and practice of PHFS,its role in development of housing industry,and promoting economic growth of the country,civilization and progress of the society.517|460|0更新时间：2023-11-28
- 摘要：This thesis presents a new method of processing copper_bearing wastewater. The humic acid type water purifier, in form of particles, is manufactured from weathered coal of Nantong Mining Area in Chongqing. Through static test, the optimum condition on treating copper-bearing waste water has been found out. Then the washing water for copper plating, which contains Cu2+ 124 mg.L-1, is treated by dynamic test. When the concentration of Cu2+ in the outlet water is lower than the national standard for draining (1.0 mg.L-1), the working capacity of absorption is 32.4 mg.L-1 and the saturation capacity of absorption is 45.8 mg.L-1.509|8|0更新时间：2023-11-28
- 摘要：In this paper,the author describes how to develop optimum glass cutting patterns in the construction industry to get higher percentage of material use.The method for designing the software is presented briefly and an example is given to illustrate the optimum cutting patterns developed by the software.619|9|0更新时间：2023-11-28
- 摘要：On the basis of discussing present situation for classification of rock masses and necessity of building expert system of rock masses.The intelligent design software for classification of rock masses CRES has been completed. In this paper the CRES is expounded systematically in the following,such as knowledge_base,data_base,reasoning machine,learning machine,and so on.Finally,the CRES is used for verifying 30 engineering examples and is used to classify rock masses of two roadways successfully .The CRES has been connected to SBSDES.389|9|0更新时间：2023-11-28
- 摘要：In this paper the problem of collinear multi-joint in rockmass loaded by shearing-compressive stresses is simplified as that of a joint in finite rockmass. The basic equations with Mohr-Coulomb criterion are solved by the line field analysis method near the joint line in an elastic-perfectly plastic materials. Through a reasonable boundary condition on the joint surface and matching conditions at the elastic-plastic boundary, the relation between length of the plastic region on the joint line and the shearing-compressive stresses is obtained. The failure laws of the rockmass contained collinear joints are also obtained.452|10|0更新时间：2023-11-28
- 摘要：This paper sums up the main types of church on the background of Christian history.1160|9|0更新时间：2023-11-28
- 摘要：In this paper ,21 pieces of ribbed rebar 16 in diameter,45 pieces of smooth circle rebar 12 and 8 in diameter and 24 pieces of high strength carbon steel wire s5 in diameter are tested on mechanical behaviors under high temperature.The laws of variation of mechanical behaviors with the temperature are investigated for prestressed steel and non_prestressed steel.The conclusions obtained in this paper are significant for research of the loading capacity of reinforced concrete members under the condition of fire catastrophe.612|9|0更新时间：2023-11-28
- 摘要：According to the theoretical analysis of energy saving effectiveness of gas instantaneous water heater with condensation, the relationship between heat efficiency and flue temperature of natural gas instantaneous water heater with condensation has been obtained through experiment.Experiment results show that the natural gas instantaneous water heater with condensation has a high practical value.497|9|0更新时间：2023-11-28
- 摘要：This paper presents a passive dehumidifying solar houase(PDSH),with combination of the Trombe wall and the dehumidifying air layer.For the envelopment of PDSH a porous slab with salt soluiton is inserted into the air layer of Trombe wall.This slab can absorb moisture at inner side and release moisture at outer side.The PDSH wall can dehumidify the room during the outer air layer open in summer and have heatstoring during the outer air layer shut in winter.It is an important character for the Trombe wall.So,the PDSH wall can be applied to insulation and heatstore,or dehumidifying and cooling.Therefore,the PDSH wall can be adopted everywhere in the world.648|8|0更新时间：2023-11-28
- 摘要：ATM technique is a kernel technique in B-ISDN.This paper summarizes the characteristics of ATM technique and its 4 primary ways for realizing switched virtual Network.It is hoped to push the research and application of ATM technique forward.477|9|0更新时间：2023-11-28
- 摘要：From the view point of combination of laws with economy, this paper discusses the content,object, nature, investment method and operation style for the urban land operation, the problems in legal operation of urban land were ara lysed.396|590|0更新时间：2023-11-28
- 摘要：A storage management approach,based upon multi-base and multi-record is presented in accordance with the current situation and application of the engineering data base.The approach provides a useful model for improving the performance of engineering data base.Through this approach,the intermal storage is fully used,the input/output(I/O)is reduced and the efficiency of the system is enhanced.The user is allowed to define the size and contents of workspace by himself.559|745|0更新时间：2023-11-28
- 摘要：紧紧围绕工程项目管理最重要的任务－工程进度展开，探讨如何优化网络进度。575|622|0更新时间：2023-11-28
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