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关键词： 钢筋混凝土叠合板   构造层   静力荷载试验   非线性数值模拟  

摘要： 混凝土建筑楼盖一般由结构层（即钢筋混凝土板）和建筑构造层（结构板上找平层、面层等）组成。在结构设计中，板面荷载均考虑全部由结构层承担，但实际上，建筑构造层对板的抗弯承载力也是有贡献的。但是由于受“设计规范”的限制，这种对板抗弯承载力的有利影响是不被考虑的。 本文通过静力加载试验和有限元分析，对现浇混凝土整体板及在其上后浇不同材料构造层的叠合板进行了研究，探讨了其承载性能（挠度、裂缝、承载力、破坏形态）及受力机理，开展的主要工作有： 1、简单介绍了叠合构件的受力性能，及其在建筑结构的应用和国内外的研究现状。 2、通过四组混凝土板的对比试验（包括一组80mm厚的混凝土现浇板、一组100mm厚的混凝土现浇板和两组在80mm厚混凝土板后浇不同强度水泥砂浆的叠合板）研究分析了其受弯性能（挠度、承载力、裂缝、破坏形态）及受力原理；试验证明，叠合水泥砂浆层的混凝土板的刚度和承载力提高明显。 3、通过ANSYS有限元分析软件对四组构件模型进行数值模拟，在分析模拟中，混凝土和水泥砂浆均采用的是三维实体单元SOLID65，钢筋采用LINK8单元。在钢筋和混凝土本构关系的选择上，钢筋采用双线性随动强化模型，混凝土采用多线性随动强化模型，钢筋和混凝土的屈服准则选用MISES屈服准则，破坏准则则采用最大拉应力准则。由计算结果可知，利用ANSYS进行有限元非线性模拟其结果与试验结果吻合较好。 由静载试验和有限元分析结果可知，钢筋混凝土板的水泥砂浆面层的存在对提高板的承载力是明显的。因此对于实际工程中由于各种原因造成的混凝土板的厚度和施工质量不能完全符合设计要求等情况，可以考虑由于混凝土板面层砂浆的存在，对增大板截面的刚度，提高板承载力的贡献。这对减少返工、未使用就加固等造成的浪费具有一定的意义。 本文最后在本次试验研究的基础上，对进一步做好建筑构造层对混凝土板承载力影响的研究工作进行了展望。

关键词： 钢筋混凝土   构造柱   圈梁   施工质量  

摘要： 砖混结构中设置构造柱的施工如不注意施工质量，不但起不到增强抗震能力的作用，反而留下安全隐患。笔者结合实际分析了钢筋混凝土构造柱的作用和构造要求，对其施工中的质量通病作了阐述，提出了具体的施工质量控制措施。

关键词： 《建筑构造与识图》   建筑制图   读图能力   教学体会  

摘要： 《建筑构造与识图》是工程造价专业的一门重要的技术基础课,涉及的知识面广,具有较强的实践性和综合性。针对高职学校的学习特点,作者从培养学生兴趣入手,谈了《建筑构造与识图》的教学体会。

ISBN: (纸本)9787508378138

关键词： Welding  

摘要： Recently, ultra high strength steel plate such as 1000N (950N/mm 2 Class) class strength is focused as material of various type of steel structure. 1000N class steel has already applied in hydropower plant in order to enjoy its effect on weight and cost reduction. However, in building construction field, high strength steel remains unfamiliar material. There are only a few example of application of 780N/mm2 class strength steel in building field. Authors have already developed 1000N class steel plate and welding consumables for building. However, from viewpoint of actual application, structural performance under massive earthquake must be evaluated. Local area of column-to-beam connection seems be subject to large amount of strain when seismic event. So, in this report, low cycle fatigue properties of 1000N class steel and its weld was evaluated and structural experiments were conducted. As a result, it is revealed that Low fatigue property of 1000N class steel is equivalent to that of 780N class and can maintain the loading capacity under 26∼51 times of strain amplitude at cδp. Furthermore, it is also shown that structural performance can be estimated by test results of small specimen with strain calculation by FE analysis and finishing of edge of beam is effective for extension of lifetime through decrease of strain.

关键词： 住宅   节能意识   节能设计  

摘要： 建筑各部位的节能构造设计,主要是在满足其作为建筑的基本组成部分的要求之外,通过对各部位(屋顶、楼板、墙体、门窗等)的造型、结构、材料等方面加以进一步设计,充分利用建筑外部气候环境条件,达到节能和改善室内微气候环境的效果.

ISBN: (纸本)9787508487595

关键词： Buildings  

摘要： Recently, ultra high strength steel plate (in this study, over 780N/mm 2 class steel is called 'ultra') such as 1000N/mm2 class strength is focused as material of various type of steel structure. 1000N/mm2 class steel has already applied in hydropower plant in order to enjoy its effect on cost reduction. However, in building construction field, high strength steel remains unfamiliar material. There are only a few example of application of 780N/mm2 class strength steel in building field. On the other hand, safety issue in a huge earthquake is more focused recently. Very large extent of elastic region of ultra high strength steel come to the front. Authors started the investigation of application of 1000N/mm 2 class steel plate for buildings. When ultra high strength steel is investigated, welding always become an issue. However, authors think welding is absolutely necessary in assembling steel material for buildings because welding is the most common and economic way of joining the materials at the moment. In this report, welding material, which can match 1000N/mm2 class steel plate and can optimize the properties of welded joint, has been developed. Especially wide range of inter-pass temperature and heat input is tried to be available. By controlling carbon equivalent and oxygen content of deposit metal, finally new welding material of GMAW and SAW for building has been developed.