沥青混凝土桥面铺装早期病害原因分析

对钢筋混凝土柔性桥面铺装的早期病害及其原因进行了分析与研究，在总结当前国内桥面铺装结构分析主要方法的基础上，通过理论分析，提出了用有限元进行结构分析时，需要重点研究的几个问题，指出了今后主要的研究方向。     

作为场所的上海里弄解读

尝试从空间设计的角度去探索和分析里弄场所中空间与事件的相互作用,对发生在空间中的活动进行定量的分析,得出定性的结果,并对作为场所的上海里弄存在的必要性进行探讨,对里弄场所延续的可能性提出展望。     

Dynamic analysis of viscoelastic structures using incremental finite element method

This paper presents an efficient and accurate incremental finite element procedure, without involving any integral transformations, to deal with practical viscoelastic structures with complicated geometries subjected to dynamic loadings. The numerical error induced from the approximate inversion technique used is thus avoided. Based on the Hamilton's variational principle, an incremental functional is derived for each time increment and the inertia terms are retained in the analysis to estimate the transient viscoelastic behaviours. To model the specific stress-strain-time constitutive behaviours of viscoelastic materials, the Norton type time hardening rule is employed. In the present computation procedure, the change of creep strains is regarded as increments of fictitious body forces at the nodal points for the next time increment.

To evaluate the accuracy and the versatility of the solution technique developed in this work, several examples are given.     

Lipophilic organic contaminants in the Rhine river, Germany

Detailed gas chromatographic-mass spectrometric analyses applied to eight Rhine river water samples constituted a comprehensive characterization of the low molecular weight organic contamination. Within the group of predominant anthropogenic contaminants, only a few compounds were characterized as frequently detected or priority pollutants. Numerous compounds exhibiting physiological or ecotoxicological properties are only rarely reported or still unnoticed riverine contaminants. Information on environmental behaviour or ecotoxicological effects is still limited for most of these substances. In particular, several brominated compounds (mono- and dibrominated (methoxyphenyl)propionic acids and hydroxymethylacetophenones) were identified for the first time as environmental contaminants. Quantitative analyses differentiated five groups of pollutants with respect to their concentration profiles. The spatial distribution and the intensity of emission sources on the one hand and the environmental stability as well as the tendency to adsorb on the particulate matter on the other hand determined the quantitative occurrence of individual compounds.     

锅锥成孔灌注桩施工质量问题及防治措施

从确保锅锥成孔灌注桩施工质量的角度出发，对锅锥成孔灌注桩施工过程中易出现的施工质量问题进行了阐述，并针对具体问题在原因分析的基础上提出了具体的预防及处理措施。     

荆州长江公路大桥运营阶段健康观测浅析

介绍了荆州长江公路大桥运营阶段健康观测的内容，对健康观测的结果进行了初步分析，为大桥的工作状况评估、养护与管理等工作提供了依据，同时也可供其他同类桥梁运营期健康观测参考。     

某斜支撑刚架失稳破坏分析

结合工程实例,对斜支撑刚架杆系进行了有限元一阶分析,得出结构处于失稳破坏状态,为找出失稳原因,对斜支撑刚架进行了有限元二阶分析及稳定性分析,通过理论分析,得出了解决方法,以供设计人员参考。     

鱼腹式桥

改进型的鱼腹式桥,以其独特的造型,结构受力明确,重又被设计者所青睐。该文对这种桥型的古为今用、结构的组成、受力特点、材料选用作简要阐述。     

蟠龙川大桥变形分析

结合蟠龙川大桥的病害概况，通过对其沉降原因、墩台稳定性的分析，提出了基础的加固处理方案，总结了在泥页岩软弱地层夹砂岩中，桥梁基础勘测设计时应注意的问题。     

高层建筑工程管理及其施工质量的控制

随着城市化的发展，如何在有限的土居住更多的人是亟待解决的问题。高层建筑发展提供了很好的解决方案。如果高层建筑物出现质量问题，后果不可想象。全面深入研究高层建筑工程管理及其施工质量的控制具有重要的现实意义。本文结合实际工作经验，就高层建筑工程管理及施工质量的控制对策展开详细论述，供同行参考。