立足我国建筑融合高质量发展新阶段,基于我国现行建筑类标准体系,研究提炼绿色、健康、低碳和智慧建筑的重点技术,系统构建绿色、健康、低碳与智慧建筑集成技术体系,涉及建筑围护结构、室内外环境控制、建筑用能系统、室外绿色化、运动健身空间等.通过在上海市某实际工程中的应用分析,为开发可复制和推广的绿色、健康、低碳与智慧技术集成方案的建筑工程提供思路,推动我国建筑行业高质量发展.
在钢筋桁架混凝土叠合板实际应用过程中,存在预制底板钢筋外伸、密拼接缝不适用于双向板等问题.为提升钢筋桁架混凝土叠合板施工效率和经济性,在充分进行试验研究和工程实践的基础上,编制了T/CECS 715—2020《钢筋桁架混凝土叠合板应用技术规程》,针对接缝选取、构件设计、密拼接缝设计等关键技术要点,总结设计方法与构造规定,以期指导工程实践.
为研究密拼钢筋桁架混凝土叠合双向板的受力性能,进行了2块四边简支边界下的3.6m×3.6m叠合板堆载试验,研究了板的破坏模式、拼缝传力、刚度及承载力.试验结果表明:2个试件具有相似的破坏模式,板底裂缝形态均呈"米"字形,与现浇板存在差异;密拼接缝两侧按《钢筋桁架混凝土叠合板应用技术规程》(T/CECS 715-2020)要求配置桁架钢筋,能保证拼缝搭接钢筋有效传力,实现了板的双向受力;屈服荷载前,增加拼缝搭接钢筋可提高双向板的整体刚度;密拼试件的承载力实测值均不低于采用弹性薄板小挠度理论和极限平衡法计算的承载力.
How to improve dynamic precision of simulator and testin g tables is an important study subject. This paper puts forward a complemented m ethod of the harmonic amplitude-phase adaptive control (HAPAC) for increasing p recision of the sinusoidal motion simulators,expounds the HAPAC principle and st ructure disposition, develops the HAPAC control laws, and analyzes the system st ability in the HAPAC. Finally a realizing way of online identification of the sy stems′ frequency-response models is presented for further improving the precis ion. These tested data and tracing errors of the simulator demonstrate that the HAPAC makes the sinusoidal motions reach more high precision than the common cla ssical controls. The HAPAC can also be used in other tracing systems of precisio n sinusoidal motions.