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“弹性建设制”兴建小型蓄水工程的可行性探讨 被引量:1
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作者 颜宏亮 宋学东 +2 位作者 徐学东 颜锦秀 张玉稳 《水利发展研究》 2004年第1期38-40,共3页
水资源紧缺问题日益突出,增蓄节水势在必行,但国家投资有限,且大都投入到重点工程上,而民间投资受到政策和规模的制约。现在政策正在逐步放开,但民间投资的规模有限与蓄水工程不易扩建的矛盾,在坝址资源有限的情况下,直接影响蓄水工程... 水资源紧缺问题日益突出,增蓄节水势在必行,但国家投资有限,且大都投入到重点工程上,而民间投资受到政策和规模的制约。现在政策正在逐步放开,但民间投资的规模有限与蓄水工程不易扩建的矛盾,在坝址资源有限的情况下,直接影响蓄水工程的兴建与发展。政策上探讨了放开水利建筑市场,大量吸引民间投资的可能;技术上提出了蓄水工程分期扩建的技术方案,提出了“弹性工期”的建设方案,可以分期扩建,又不占压资金,分期运行取得效益。 展开更多
关键词 蓄水工程 民间投资 水利建筑市场 弹性建设 分期扩建
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韧性城市理念下传染病医院弹性建设模式研究 被引量:7
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作者 矫雪梅 张晓婧 徐飞 《规划师》 北大核心 2020年第5期94-98,共5页
随着新型冠状病毒肺炎疫情的蔓延,国家紧急启动了"重大突发公共卫生事件一级响应"。文章以韧性城市的视角,研究传染病医院在配建标准、用地预留、基础设施预留和装配式技术应用等多方面弹性建设模式,平时可正常运转,重大疫情... 随着新型冠状病毒肺炎疫情的蔓延,国家紧急启动了"重大突发公共卫生事件一级响应"。文章以韧性城市的视角,研究传染病医院在配建标准、用地预留、基础设施预留和装配式技术应用等多方面弹性建设模式,平时可正常运转,重大疫情突袭时可快速扩建,保证城市有足够的专业医疗空间抵抗新型病毒,保障人民群众的生命健康,同时使城市迅速回归正常运转。 展开更多
关键词 安全韧性 传染病医院弹性建设模式 装配式医院 综合抗灾能力
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突发公共卫生事件应急管理现状及弹性能力建设对策 被引量:4
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作者 苏文杰 兰卫光 张文晓 《中国卫生标准管理》 2023年第22期61-64,共4页
随着社会的快速发展和全球范围内突发公共卫生事件的频发,综合医院作为人民健康的重要守护者,承担着应对重大突发公共卫生事件的重要责任。突发公共卫生事件具有突发性、广泛性和危害性的特点,给医院应急管理带来了严峻的挑战。在这样... 随着社会的快速发展和全球范围内突发公共卫生事件的频发,综合医院作为人民健康的重要守护者,承担着应对重大突发公共卫生事件的重要责任。突发公共卫生事件具有突发性、广泛性和危害性的特点,给医院应急管理带来了严峻的挑战。在这样的背景下,了解综合医院突发公共卫生事件应急管理的现状,分析医院在应急管理过程中所面临的挑战和问题,以及对应急管理弹性能力概念及构成要素的详细阐述,构建了医院应急管理弹性能力建设的理论框架。同时,对医院应急管理弹性能力建设对策进行了分析,为提高医院在重大突发公共卫生事件中的能力和医疗救治水平提供了理论参考,这对于完善医院的应急管理体系、提高应急响应效能具有重要意义。 展开更多
关键词 综合医院 突发公共卫生事件 应急管理 现状 弹性能力建设 对策
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纽约弹性城市建设经验及其对上海的启示 被引量:12
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作者 曹莉萍 周冯琦 《生态学报》 CAS CSCD 北大核心 2018年第1期86-95,共10页
面临气候变化带来的全球性环境、社会、经济灾难,许多国家、地区都制定了应对方案并采取行动。与上海市有着同样区位优势的纽约市,作为全球城市在有关气候变化的城市治理方面一直处于国际领先地位,引领全球城市开展弹性城市建设。在总... 面临气候变化带来的全球性环境、社会、经济灾难,许多国家、地区都制定了应对方案并采取行动。与上海市有着同样区位优势的纽约市,作为全球城市在有关气候变化的城市治理方面一直处于国际领先地位,引领全球城市开展弹性城市建设。在总结纽约弹性城市建设发展历程基础上,分析纽约市弹性城市建设所面临的挑战和机遇,未来100年总目标及其包含4个分目标,以及实现这4个分目标的具体措施。最后,对比纽约市与上海市的相似性,从弹性城市项目建设、投融资、区域合作、政府治理这4个方面为上海市弹性城市建设带来启示。 展开更多
关键词 弹性建设 纽约市 经验 启示
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制造业弹性IT基础建设与企业绩效关系研究 被引量:2
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作者 陈海涛 周雪梅 《科技管理研究》 CSSCI 北大核心 2018年第14期140-146,共7页
探讨制造服务化的前因与结果,提出制造服务化这一中介变量来解释前因变量弹性IT基础建设与结果变量企业绩效的关系,并提出产品多元化会正向调节制造服务化与企业绩效之间的关系。采用276家企业调查数据对研究假设进行检验,结果支持理论... 探讨制造服务化的前因与结果,提出制造服务化这一中介变量来解释前因变量弹性IT基础建设与结果变量企业绩效的关系,并提出产品多元化会正向调节制造服务化与企业绩效之间的关系。采用276家企业调查数据对研究假设进行检验,结果支持理论预期,揭示制造服务化在弹性IT基础建设对企业绩效的影响机制中扮演着重要的角色。 展开更多
关键词 弹性IT基础建设 制造服务化 产品多元化 企业绩效
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我国推进弹性城市规划建设的战略思考 被引量:1
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作者 杨艺宣 《城市建筑》 2019年第14期48-49,共2页
随着城市化进程的加快,以及城乡差距的逐渐缩小,气候变化、城市建筑、城市灾害等对城市的弹性造成了一定的影响,为了让城市发展发挥出更好的水平,推进弹性城市规划设计成为我国当前讨论的热点。弹性城市是指城市较快发展恢复到原本的状... 随着城市化进程的加快,以及城乡差距的逐渐缩小,气候变化、城市建筑、城市灾害等对城市的弹性造成了一定的影响,为了让城市发展发挥出更好的水平,推进弹性城市规划设计成为我国当前讨论的热点。弹性城市是指城市较快发展恢复到原本的状态,并保持系统结构和功能的能力。 展开更多
关键词 弹性城市建设 规划建设 战略 评价
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我国推进弹性城市规划建设的战略思考 被引量:1
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作者 赵婷 《工程建设与设计》 2021年第7期25-26,29,共3页
弹性城市是指城市在保持系统结构和功能的同时迅速发展并恢复其原始状态的能力。论文介绍我国弹性城市的建设发展,分析弹性城市建设规划存在的不足,探讨弹性城市建设理念对我国建设的影响,以供参考。
关键词 弹性城市建设 规划建设 战略
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Propagation simulation and attenuation law analysis of seismic wave in elastoplastic tunnel rock medium 被引量:2
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作者 赵同彬 李建功 +1 位作者 肖亚勋 程国强 《Journal of Coal Science & Engineering(China)》 2007年第4期503-506,共4页
The energy caused by the dynamic impact in mining engineering forth release and spread by the way of seismic waves, monitoring is an effective way for forecasting mine dynamical disasters, such as rockburst and coal a... The energy caused by the dynamic impact in mining engineering forth release and spread by the way of seismic waves, monitoring is an effective way for forecasting mine dynamical disasters, such as rockburst and coal and gas outburst. Three-dimensional dynamic model was built to simulate the propagating progress of seismic waves in the elastoplastic tunnel rock and analyzed the propagating law of perturbation acceleration around tunnel, based on the finite element dynamic analysis software ANSYS/L S-DYNA. The simulation results indicate that: (1) The propagation attenuation of seismic wave is a negative index relationship; (2) The acceleration amplitude of seismic wave decays rapidly in near-field and decays slowly in far-field; (3) When the perturbation is generated in the dead ahead of tunnel, the acceleration of seismic wave become smaller and smaller away from the roadway-rib;(4) The elastic and plastic stress state of tunnel rock is also an important factor for propagation process of wave, the energy of seismic wave is mainly consumed for geometric spreading and plastic deformation in propagation in the elastoplastic medium model. 展开更多
关键词 seismic wave tunnel rock numerical simulation ATTENUATION
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Model Order Reduction of Complex Airframes Using Component Mode Synthesis for Dynamic Aeroelasticity Load Analysis
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作者 Paul V. Thomas Mostafa S. A. Elsayed Denis Walch 《Journal of Mechanics Engineering and Automation》 2018年第4期145-155,共11页
Airframe structural optimization at different design stages results in new mass and stiffness distributions which modify the critical design loads envelop. Determination of aircraft critical loads is an extensive anal... Airframe structural optimization at different design stages results in new mass and stiffness distributions which modify the critical design loads envelop. Determination of aircraft critical loads is an extensive analysis procedure which involves simulating the aircraft at thousands of load cases as defmed in the certification requirements. It is computationally prohibitive to use a GFEM (Global Finite Element Model) for the load analysis, hence reduced order structural models are required which closely represent the dynamic characteristics of the GFEM. This paper presents the implementation of CMS (Component Mode Synthesis) method for the generation of high fidelity ROM (Reduced Order Model) of complex airframes. Here, sub-structuring technique is used to divide the complex higher order airframe dynamical system into a set of subsystems. Each subsystem is reduced to fewer degrees of freedom using matrix projection onto a carefully chosen reduced order basis subspace. The reduced structural matrices are assembled for all the subsystems through interface coupling and the dynamic response of the total system is solved. The CMS method is employed to develop the ROM of a Bombardier Aerospace business jet which is coupled with aerodynamic model for dynamic aeroelasticity loads analysis under gust turbulence. Another set of dynamic aeroelastic loads is also generated employing a stick model of same aircraft. Stick model is the reduced order modelling methodology commonly used in the aerospace industry based on stiffness generation by unitary loading application. The extracted aeroelastic loads from both models are compared against those generated employing the GFEM. Critical loads modal participation factors and modal characteristics of the different ROMs are investigated and compared against those of the GFEM. Results obtained show that the ROM generated using Craig Bampton CMS reduction process has a superior dynamic characteristics compared to the stick model. 展开更多
关键词 Component Mode Synthesis Craig-Bampton reduction medaod dynamic aeroelasticity analysis model order reduction aircraft loads analysis.
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Design of Dissipative Braces for an Existing Strategic Building with a Pushover Based Procedure
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作者 Alessandro Vittorio Bergami Camillo Nuti 《Journal of Civil Engineering and Architecture》 2014年第7期815-823,共9页
The research presented in this paper deals with the seismic protection of existing frame structures by means of passive energy dissipation. An iterative displacement-based procedure, based on capacity spectrum, to des... The research presented in this paper deals with the seismic protection of existing frame structures by means of passive energy dissipation. An iterative displacement-based procedure, based on capacity spectrum, to design dissipative bracings for seismic retrofitting of the frame structures is described, and some applications are discussed. The procedure can be used with any typology of dissipative device and for different performance targets. In this work, the procedure has been applied, with both traditional pushover (load profile proportional to first mode) and multimodal pushover, to an existing RC (reinforced concrete) frame building. In the application, the buckling restrained braces have been used in order to prevent damages to both the structure and non structural elements. The use of multimodal pushover proves to be more effective than pushover based on single mode in case of medium rise RC frame building (higher than 30 m) but, once this building is retrofitted, and therefore regularized, with a bracing system, the difference between using monomodal or multimodal pushover becomes insignificant. 展开更多
关键词 Dissipative braces earthquake engineering energy dissipation seismic retrofitting.
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Resilient Modulus of Hydraulically Bound Road Base Materials with High Volume Waste Dust
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作者 Hassan Al Nageim Petros Visulios Behrooz Saghafi 《Journal of Civil Engineering and Architecture》 2010年第7期1-8,共8页
The paper presents laboratory test results on hydraulically bound road base materials containing high volume of steel slag and blast furnace slag waste dusts compared with control mixtures. These mixtures contain high... The paper presents laboratory test results on hydraulically bound road base materials containing high volume of steel slag and blast furnace slag waste dusts compared with control mixtures. These mixtures contain higher levels of (4mm-0.0 mm) dust, than would be the case in standard un bound road base mixtures. The combined influence of the steel slag and granulated blast furnace slag wastes content is to enhance the stiffness of the road base materials and save materials and cost during road construction. Triaxial repeated load tests were performed on the unbound and lightly bound materials to measure their resilient modulus. The test results show important improvements in the bond strength between the contents of road base materials. This offers the prospect of using these materials in road base materials to reduce the use of primary aggregates and thus minimize the cost of roads and highways construction. 展开更多
关键词 Road base materials waste aggregates
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