基于日照圆锥曲面建筑日照的研究（可编辑）.docVIP

基于日照圆锥曲面建筑日照的研究I 华 中 科 技 大 学 硕 士 学 位 论 文 摘 要 随着我国城市化进行的加快,城市用地开始紧张。楼群密度的不断提高和楼群间 距的不断缩短,使土地利用率得到了提高,但同时也导致了居民住房的日照不足。怎 样在提高土地利用率的同时满足居民日照环境的要求,这是每个现代住区规划者应该 考虑的问题。 针对几种传统日照分析方法的不足,本文首先介绍了利用日照圆锥曲面方法进行 日照分析计算的原理及过程。该方法是基于三维环境的计算方法,能够比较真实的模 拟建筑日照的遮挡情况,并且该方法是基于数学公式法计算日照时间,相比于采样法, 其结果较精确,计算速度也较高。 基于日照圆锥曲面原理,本文主要研究了日照单点分析和平面分析方法,对建筑 物遮挡关系的判断、遮挡建筑物有效面的判断、平面分析网格划分、平面内有效分析 点的判断等关键技术进行了研究,并提出了一些提高平面分析速率的方法和措施。 在以上研究的基础上,本文开发了基于日照圆锥曲面的日照分析系统。最后通过 例子对该方法进行了实际验证,结果正确,计算速度比较高。关键词:日照分析,日照圆锥曲面,单点分析,平面分析II 华 中 科 技 大 学 硕 士 学 位 论 文 Abstract With the rapid development of city planning and building,the space of the urban district become less and less.The density of buildings get larger and the space between buildings get smaller,which get the high-usage of the space,but lead the sunlight shortage to the urban inhabitants.Thus, every civil planner must think about how to balance the high-usage of the space and the enough sunlight Aiming at the shortage of some conventional sunlight analysis methods,this paper presents an method that based on the 3-D cone for carrying out sunlight analysis about single point or plate in first.Because of basing on the 3-D surroundings and mathematical formula,the method can simulate the sunlight condition more factully ,have a more precise result and calculate faster comparing with those conventional methods Based on the principle of sunlight cone.The paper research the methods for the single point sunlight analysis and plate analysis mostly,especially study the key technology about judging the shadow connection during the buildings,making out the valuable surface of the buildings,measuring off the given plate and confirming the valuable analysis points in the plate,besides these,some methods are given to improve the speed of plate analysisAt last, after the upper research,the system based on sunlight 3-D cone is developed in the paper.The method is proved with some examples , the result of the method is right and the speed