某桥立柱裂缝成因分析及对策

通过对某桥匝道桥部分立柱进行温度应力分析,利用ANSYS软件,建立有限元模型,在日照温差和骤变温差工况下计算了立柱的应力状态,分析了裂缝的可能成因,并提出了相应的建议,从而减少桥梁立柱裂缝的产生.     

结合计算机环境模拟分析的绿色校园规划设计方法初探--石家庄经济学院新校区投标方案的设计思考

石家庄经济学院新校区的规划设计方案中,主要体现了开放式校园、礼乐相承、中西合璧的设计构思。通过校园风环境模拟、日照环境模拟、空间可视域模拟等计算机环境模拟,对新校区设计方案进行客观、综合、科学的环境分析,对结合计算机环境模拟的绿色校园规划设计方法做出初步探讨,旨在探索出一套效率高、操作性强、较为适合国内普遍现状的设计思路和操作手法。     

重庆地区办公楼建筑窗户能耗规律与节能对策研究

在建筑节能中,建筑玻璃门窗是一个非常薄弱而且常常较易被人忽视的重要环节,但同时也是建筑节能工作中大有潜力可挖之处.为了找出建筑窗户的能耗规律及进一步探索节能方案,利用调研测试结果,得出重庆地区典型的办公楼建筑模型及其通风空调方案,针对目前常用的22种窗户节能方案,利用清华大学建筑技术系开发的DEST软件对各方案进行建筑物全年的能耗计算.对比分析各方案的计算结果,定量分析了不同窗户节能措施对建筑能耗的影响.结合办公楼建筑的特点,提出了重庆地区该类建筑在外窗热工性能、外窗遮阳方式以及窗墙比取值等方面的具体建议.     

建筑日照计算的新概念

本文介绍了在目前建筑设计界较流行的 Auto CAD软件上开发的日照分析软件。本软件符合《城市居住区规划设计规范 GB5 10 0 - 93》所提出的住宅日照标准 ,目前已被国内很多设计与规划部门采用。它所规划的日照分析方法准确、实用 ,可以完全取代传统的手工图解法。通过大量的实例分析 ,我们得到了一些住宅建筑设计与居住区规划中关于日照的值得引起重视的结论     

试论被动式太阳房的发展

叙述了太阳房建筑在我国的发展概况;阐述了现有太阳房建筑存在的缺陷并提出其将来的发展前景。     

Prediction of global solar radiation from bright sunshine hours and other meteorological data

Three existing empirical relations which predict global radiation from bright sunshine hours and meteorological parameters, were tried for 14 Indian stations where all relevant data was available. A large amount of error (±50%) was found. So a new empirical relation was established between global radiation and meteorological parameters. The new relation predicted the insolation within a ±10% error limit in most cases. Global radiation dependence on ambient temperature and relative humidity was introduced through atmosperic water content per unit volume. The relation is WAT = RH(4.7923+0.3647×T+0.0055×T²+0.0003×T³)G = G_ext(0.414+0.400×SS-0.0055×WAT)$\text{SS}\text{= S}\text{Z}\text{?}$     

混凝土挡土墙的温度场和温度应力分析

针对水利工程建设中水工混凝土挡土墙常产生裂缝的现象，用有限元软件ANSYS模拟了水工混凝土挡土墙在日照辐射情况下的温度场，并进行了温度应力分析，达到了理想的模拟效果。     

当前建筑日照分析实践的思考

通过探究现行规范关于建筑日照的相关规定，根据目前日照分析工作的情况，总结出当前建筑日照分析工作中存在的突出问题，并提出了若干改进建议，使建筑日照分析及管理变得有序、公平、透明、简便。     

THE APPLICABILITY OF SEVERAL DIFFUSE SOLAR RADIATION MODELS TO THE CYPRIOTE ENVIRONMENT

Solar radiation measurements at one location in Cyprus are used to test the applicability of several theoretical and empirical models which compute diffuse radiation on a horizontal surface. Two types of correlation tests were used [1]: the first correlates the ratio of diffuse-to-global solar radiation with the “clearness index” K_T; and the second correlates the ratio of diffuse-to-global solar radiation with the fractional sunshine.

Therefore, the selected models for discussion are compared and tested for their applicability to one location in die eastern Mediterranean basin in general, on the basis of statistical error tests. A comparative study of the models shows that Page's model [3], based on the first type of correlations and Hay's one [13] based on the second type of correlations, are equally accurate for the greater Cypriote environment. Finally, two statistical equations are proposed for estimating diffuse radiation for solar energy applications in the greater environment of Cyprus.