内循环呼吸幕墙在嘉铭中心工程中的应用

从适宜我国北方环境的内循环呼吸幕墙在北京嘉铭中心工程中的结构设计入手,介绍了该幕墙的工作原理及施工技术特点,通过工程实践创新地解决了玻璃和石材组合幕墙的换气系统设计及组装安装施工技术难题,节能、环保、降噪,保证了工程工期、质量、安全等各项目标的实现,产生了一定的经济和社会效益.     

SBS改性剂与沥青的相容性分析

分别采用4303、LG501两种SBS改性剂与辽河90#基质沥青进行相容性试验。沥青胶浆性能结果表明两种改性剂与基质沥青相容性良好,在掺量一定的情况下,两种SBS改性剂制成的改性沥青的感温性能、高温稳定性能是4303优于LG501;低温延伸性LG501优于4303;弹性恢复、抗老化性两者性能相当。混合料性能试验结果表明,室内制成的改性沥青与成品改性沥青拌制混合料性能相当,在高温抗车辙方面稍优于取样改性沥青。     

橡胶粉改性沥青在寒冷地区高速公路中的应用研究

在沥青中掺入一定比例的橡胶粉颗粒,经高温高速剪切磨制均匀,使胶粉颗粒与沥青质进行充分的溶胀反应,形成高粘度的胶粉改性沥青胶结材料,以改善石油沥青的高、低温性能。     

Calculation Method and Analysis for the Annual Power Generation of PV Faades in China

The application of PV faades emerges greatly in recent years and however its calculation methods and analysis remains insufficient under the weather conditions of China. In such demand, this paper investigates PV faade in terms of PV electricity generation in different arrangements and weather conditions of four major cities in China. The calculation models for PV faade are developed and validated by comparing the results with the measured data from the field experiments. A parametric study is carried out to provide a reference for the optimal design of the PV faades. The results show that with various cities, building orientations, building forms, materials and arrangements of PV modules, there is a distinct difference in the electrical output energy of PV faades. Weather conditions play a very important role in terms of PV generation performance of PV faades.