Concrete - filled steel tube , as a new type of composite building material , has been widely used in civil engineering in recent years 鋼管混凝土,作為一種新的復(fù)合建筑材料,近些年來在土木工程中得到了廣泛的應(yīng)用。
The 42 - metre composite building houses the baldachin hall , a library , a meeting area , a general office , a carpark , and cultural , educational and welfare facilities . though a modern design has been adopted , much importance is attached to the concept of the buddhist triad 綜合大樓約高42米,集佛殿、圖書館、大會(huì)堂、總辦事處、停車場及文教福利等設(shè)施于一身,設(shè)計(jì)雖然新穎,但不離佛法僧三寶之概念。
However , it must be realized that there is an uneven development betvveen the present design theory and the practice , that concrete - filled tube . as a new type of composite building material , has not been yet adopted in bridge design codes , and also , that there no railway concrete - filled steel tubular arch bridges at present 然而,必須看到,現(xiàn)有的橋梁設(shè)計(jì)理論滯后于鋼管混凝土拱橋的發(fā)展,鋼管混凝土,作為一種復(fù)合材料,還沒有被列入設(shè)計(jì)規(guī)范之中,更應(yīng)該看到,鐵路上還沒有一座鋼管混凝土拱橋建成。
On the basics of briefly summarizing the research and application presents of building coatings and nano - composite building coatings in domestic and overseas , presented a creative approach of modified exterior building latex coatings applying inorganic nano - powders and its " compound . systematically studied the effect of factors such as nano - materials " category , additive capacity , dispersing method on the behavior of exterior building coatings " weathering resistance , scratch resistance , water resistance and alkaline resistance etc . studying on uv - vis optical property of nano - powder materials and its " compounds turned up that nano - tio2 , nano - sio2 , nano - zno have excellent characteristics to uv shielding ; dispersing system of polybasic nano - composite materials owned higher uv shielding capability than single disperse system 本文在簡要敘述國內(nèi)外建筑涂料和納米復(fù)合建筑涂料的應(yīng)用研究現(xiàn)狀的基礎(chǔ)上,提出了使用無機(jī)納米粉體及其復(fù)合材料改性建筑外墻乳膠漆的創(chuàng)新思路,系統(tǒng)地研究了納米粉體材料的種類、添加量、分散方式等因素對(duì)外墻乳膠漆耐候性、耐洗刷性以及耐水、耐堿性等性能的影響,成功地開發(fā)了納米改性建筑外墻乳膠漆產(chǎn)品,并完成了外墻乳膠漆用納米助劑的初步開發(fā)工作。