电梯减速距离-速度转换器的一种分析设计方法

分析了电梯理想减速特性，针对其在按距离制动时需要兼顾运行效率和舒适感的问题，提出了按理想减速特性设计用于模拟控制的距离-速度转换环节的基本思想，并给出了电路原理及元件选择方法．     

谈建筑中色彩的运用及效果

通过对色彩视觉现象，色彩中所含有的潜在意识和效果的分析。阐述了色彩在建筑中的特殊功用和应用效果。以期使色彩的艺术应用得到足够重视。     

Enhancement of bond strength for epoxy-coated rebar using river sand

In this paper, improvement of bond strength for epoxy-coated rebars is studied. Although the epoxy-coated rebar is well accepted as an alternative corrosion prevention method in engineering practice, it still suffers from its poor bond performance, which requires modification of design parameters such as development length and splice length. Following our previous study [Proceedings of the Third Structure Engineering Conference (1996) 651–659], it is proposed to mix the river sand in the epoxy to improve the bond strength of epoxy-coated rebar. Specimens of several sizes of river sand and sand/epoxy weight ratios were studied. The single-rebar pullout test was performed to examine the bond strength. The open circuit potential method and the linear DC polarization method were conducted for corrosion rate measurements to ensure for keeping the merit of epoxy-coated rebar, i.e. the ability of corrosion. Experimental results show that the proposed method is very promising.     

On the shear strength of reinforced concrete deep beam with web opening

An objective of this study is to establish the shear strength of reinforced concrete deep beam with web opening. Eighteen beams were tested with the variables of the steel ratio and strength of longitudinal bars, concrete strength, and shear span‐to‐depth ratio. It was observed that the opening is strengthened by longitudinal bars but the load‐carrying capacity of deep beams with openings can be largely improved by the increase in concrete strength. Modifying the softened truss model derived by Mau and Hsu and utilizing the results of this experiment carried out with the variables of concrete strength, cross‐section size, shear‐span‐to‐depth ratio, and the strength and steel ratio of longitudinal bars, this study proposes an improved model to predict the shear strength. Copyright © 2006 John Wiley & Sons, Ltd.     

城市景观中的缝与槽

缝与槽是线性艺术在城市景观中的表现方式,本文从线性艺术效果、虚实与光影、功能与建造三个方面进行研究与分析,使人们深入理解线性艺术在现代城市景观设计中的作用和效果。     

缆索承重桥梁的非线性分析方法综述

论述了缆索承重桥梁的非线性分析的几种计算方法,并指出每种方法的适用范围,以使整个结构的分析精度达到新的水平,为同类桥梁结构计算建立了指导。     

气象与建筑火灾

在介绍了建筑火灾与气象具有密切关系的基础上,论述了针对气象诸因素的多种防火措施如防雷、防潮及防爆泄压等设计,还展望了我国这方面研究的突出成果及城市防火规划等。     

江苏城市酸雨问题与对策

八十年代以来，随着全球经济的发展和环境的恶化，酸雨问题已成为全球性问题。改革开放以来，随着我国东部沿海地区经济发展和城市化进程的加速，江苏城市酸雨程度不断加重，酸雨问题已成为江苏可持续发展中必须认真重视的制约因子。本文根据有关资料分析了江苏城市酸雨的现状、特点及发展趋势，并就控制和减轻酸雨危害提出了对策建议。     

临安·青山湖会馆及商业街设计

该文介绍了杭州临安青山湖会馆商业街的方案设计,分析了其结合山地环境塑造多样化街道广场空间以及建筑景观的构思,对风景区的建筑设计作了新的尝试.     

逆作钢格构柱钢梁基础在塔机基础中的应用

目前建筑施工工期短，一般都需在基坑开挖前安装塔机，以解决大量垂直运输问题。但在高层建筑施工中，由于一般设有多层地下室，且基坑工程具有平面尺寸大、开挖深度深、垂直运输矛盾突出、施工场地狭小等特点，塔机可能被定位在深基坑中，而此时基坑尚未开挖，塔机基础承台无法直接利用主楼结构底板下的工程桩。如果采用主楼间的沉降缝或后浇带，在地基施工时将混凝土工程桩加长至地面，塔机可以实现在基坑开挖前安装。但在塔机安装后，随着基坑的开挖，塔机基础承台下的土将被逐步挖去，这时加长的混凝土桩将会暴露在外，原先的低承台桩基变成高承台桩基。随着开挖深度的增加，桩的自由长度加大，易造成长细比过大而引发失稳，而混凝土桩由于自身材料和结构等方面的原因，进行加固难度极大。为了使塔机既能在基坑开挖前安装，又能保证其在整个施工中的安全，本文提出逆作钢格构柱钢梁的方法解决施工中遇到的这一难题。