直流电弧炉炉底导电砖的炼钢试验

东北大学和鞍钢耐火材料公司研制的直流电弧炉炉底导电镁碳砖的实验室冶炼试验结果表明，在炼钢过程中，该材料导电性和耐侵蚀性良好，冷热启动容易，电弧燃烧平稳。     

A case study comparing the completeness and expressiveness of two industry recognized ontologies

Enabling Smart Building applications will help to achieve the ongoing efficient commissioning of buildings, ultimately attaining peak performance in energy use and improved occupant health and comfort, at minimum cost. For these technologies to be scalable, ontology must be adopted to semantically represent data generated by building mechanical systems, acting as conduit for connection to Smart Building applications. As the Building Automation System (BAS) industry considers Brick and Project Haystack ontologies for such applications, this paper provides a quantitative comparison of their completeness and expressiveness using a case study. This is contextualized within the broader set of ontological approaches developed for Smart Buildings, and critically evaluated using key ontology qualities outlined in literature. Brick achieved higher assessment values in completeness and expressiveness achieving 59% and 100% respectively, as compared to Haystacks 43% and 96%. Additionally, Brick exhibited five of six desirable qualities, where Haystack exhibited only three. Overall, this critical analysis has found Brick to be preferable to Haystack but still lacking in completeness; to overcome this, it should be integrated with other existing ontologies to serve as a holistic ontology for the longer- term development of Smart Building applications. These will support innovative approaches to sustainability in building operations across scales and as next- generation building controls and automation strategies.     

利用TAT软件进行底框砖混结构工程事故分析

用PK、PM软件对底框砖混结构的计算，框架梁的扭矩无法算出。可利用TAT软件对框架再进行内力分析，以配置适当的钢筋。     

大庆市某锅炉房46m高砖烟囱裂缝剖析

介绍了某 46m高烟囱 ,由于锅炉设备安装时没有安装省煤器装置 ,至使进入砖烟囱之烟气温度升高 ,造成烟囱筒壁内抗温度应力钢筋不足 ,出现竖向裂缝。并验算了 2个截面。     

An investigation on the production of construction brick with processed waste tea

The main objective of this study is to investigate the utilization potential of processed waste tea (PWT) in clay brick. The effects of processed waste tea material addition on the durability and mechanical properties of the bricks were investigated. Due to the organic nature of PWT, pore-forming (in fired body) and binding (unfired body) ability in clay body was investigated. First, PWT material was dispersed in water for 24 h. Afterwards, in order to get comparable results, different ratios of the waste (0, 2.5, and 5% by mass) were added to the raw-brick clay. Test specimens were produced by the extrusion method. The samples were tested by using the standard test methods and compared with the specifications. The compressive strength of the unfired and fired samples significantly increased as compared to pure samples. As a result, it was concluded that PWT can be utilized in unfired and fired building bricks by taking advantage of low cost and environmental protection.     

砖墙抹灰横向开裂原因分析及修补

龟裂、空鼓等现象都属于砖墙抹灰常见的质量通病 ,而抹灰层横向开裂的情况并不多见。本文结合工程实例 ,论述了砂浆收缩、施工操作不当等因素是抹灰层横向开裂的原因 ,并提出修补措施     

Strength and thermal conductivity in lightweight building materials

Pumice can be used in bricks and concrete to produce lightweight building materials with high porosity, high thermal insulation and resistance to earthquake motion. The paper presents ongoing research to design a structural lightweight concrete and brick using Nevşehir pumice. The testing of four different brick types is reported. The density, thermal conductivity, compressive and tensile strengths and Young’s elastic modulus indicated that these lightweight materials had significant advantages as a construction material in earthquake-prone areas.      

集团装药定向爆破拆除砖烟囱

采用小药室、集团装药爆破技术,对一座60m高的砖烟囱成功实施定向倒塌爆破拆除。本文介绍了该烟囱拆除的爆破参数确定、施工工艺及装药方法、起爆网路等爆破设计,为类似的烟囱爆破施工提供参考。     

30m高砖烟囱单向折叠爆破拆除

介绍了复杂条件下的砖烟囱单向折叠爆破拆除。阐述了在倾倒空间不足情况下,为保证烟囱准确倾倒,确定了两段不同段高,单向折叠爆破的技术方案。同时介绍了爆破方案的选择和爆破切口的设计,通过两切口的起爆时差,减弱上下两节烟囱的相互影响,并结合爆破网路设计和有效的安全防护措施,较好地实现了爆破拆除。     

复杂环境45m砖烟囱爆破拆除

介绍了采用定向控制爆破技术拆除复杂环境下45m砖烟囱的工程实例,通过采用提高爆破切口高度创造爆破条件,选用小角度定向窗保证倾倒的准确性,并选择合理的爆破参数、爆前预处理及防护措施确保了爆破拆除的圆满成功,可为此类爆破拆除工程提供参考。