支座水平滑移使柱面网壳结构成型施工新方法研究

介绍一种以支座水平滑移方式使柱面网壳结构快速成型的施工(专利)新方法,并结合工程算例,用时变结构力学分析计算方法与常规设计计算方法分别对结构施工全过程进行了受力分析和对比。     

上海新农村试点地区农民调查及若干规划问题探讨

新农村规划首先应该从农民调查入手,从调查中剖析农民的居住结构、就业情况及对公共设施的需求,从规划上合理预测农村的居住结构,提高公共设施配套水平,有重点地开展村落整治试点工作.     

关于注册建筑师继续教育问题

针对当前勘察设计行业注册建筑师继续教育的情况进行调查和总结,并提出几点关于各专业注册师施行继续教育的改进建议。     

Extraction of Metal(Ti,V,Mo)-oxyl Cations by Monoacidic Phosphates and Phosphonates

The extraction of TiO~(2+),VO~(2+),VO_2~+ and MoO_2~(2+)by HDEHP,HEHEHP and HDTMPP was studiedrespectively.The orders of extraction ability for the three extractant systems are as follows:for TiO~(2+),VO~(2+):HDEHP>HEHEHP>HDTMPP;for VO_2~+, MoO_2~(2+):HDEHP< HEHEHP< HDTMPP.The experimental results were discussed from the point of view of extractant structures.     

成长的旅程

介绍了日本第19届建筑环境设计竞赛的获奖作品“成长的旅程”的构思完形过程和主要设计内容。该方案以北京林业大学为研究对象,在重新布局的校园环境中,通过专业特色影响下构建的线性封闭的通道空间、点状分布的开敞自然空间共同营造了一条附属学校孩子们放学回家的充满趣味的道路,并让他们在其中充分的接触自然感受自然。使这条回家的道路成为一个孩子们健康快乐的成长旅程。     

小净距隧道中夹岩加固技术研究

中夹岩的稳定是小净距隧道建设成功的关键。而小导管注浆、系统锚杆及水平贯通预应力锚杆是应用最为广泛的3种中夹岩加固技术,并在实践工程中得到有效验证。中夹岩加固技术主要通过提高围岩力学参数与改变力学状态等发挥加固作用。小导管注浆多适用于低类别围岩;高类别围岩中采用系统锚杆较为合理;水平贯通预应力锚杆及其组合加固方法适用于各类别围岩。     

基于．NET平台的“公路设备管理信息系统”的开发与应用

我国各省、市公路局所拥有的筑养路机械设备少则几千万元，多则几亿元，形成了一个庞大的设备资源群体，因此如何管好用好这些设备资源，发挥其应有的效益，已成为摆在我们面前的重要课题。     

钢筋混凝土阴极保护技术应用综述

综述了电化学阴极保护在混凝土中钢筋防腐蚀的应用,着重评述了外加电流阴极保护法中阳极系统的应用现状及研究方向和牺牲阳极保护法中的阳极材料。     

Air-soil exchange of mercury from background soils in the United States

The air-surface exchange of mercury (Hg) was measured, using a dynamic polycarbonate flux chamber, for soils with low or "background" Hg concentrations (<0.1 mg/kg) at eleven locations across the contiguous United States. Sampling locations included agricultural, desert, grassland, mixed and pine forest ecosystems (n=1326 soil flux measurements at 46 individual sites). An overall soil Hg flux of 0.9+/-0.2 ng/m2/h for these background soils was obtained by averaging the means for the different locations. Soil Hg fluxes were significantly lower in dark conditions than in the light for all but the grassland sites. Mean inlet air Hg concentrations were 1.0+/-0.1 ng/m3 in the dark and 1.3+/-0.2 ng/m3 in the light. Soil temperature inside and outside of the chamber, air temperature, relative humidity, and irradiance were measured concurrently with soil Hg flux. Soil-air Hg exchange was weakly predicted by environmental variables (R2 from 0.07 to 0.52). For a single location, flux was better correlated with soil moisture than other measured environmental parameters, suggesting that soil moisture might be an important driver for Hg emissions from background soils. In addition, based on data collected we suggest some quality control measures for use of Tekran 2537A analyzers when measuring low mercury fluxes. Using basic scaling procedures, we roughly estimate that natural emissions from soils in the contiguous U.S. release approximately 100 Mg/yr of Hg to the atmosphere.     

漳州将军山公园空间构成探析

结合漳州将军山公园规划设计与实施,探索唐初开漳历史发祥地及开漳始祖安葬之地的空间构成关系,指出将军山公园的自然地理空间、规划结构空间、传统院落空间的创作手法与特征,提出空间创作应通过现代与传统、历史与现实结合,构建中国传统建筑文化的民族性和地域性特色。