地域性与人文观--厦门市海沧新阳中学设计

介绍了厦门市沧新阳中学工程设计,将适宜地域气候特征之元素触入现代校园之中,营造富有文化氛围的生态校园。并根据现代数学模式及学生心理特点,在场所精神的营造、功能空间的塑造上都进行了深入思考和细节设计,从而体现人文观。     

城市空间精细化体验路线设置初探——以杭州运河卖鱼桥至大关桥路段为例

文章以教学及学术研究内容为基础,阐释对城市空间进行精细化体验路线设置的探索,表达尝试通过具体场景节点设置和丰富历史建筑信息,为本地居民和外来参观者提供专业角度的城市空间体验完整线路的努力.这是一个持续的系列研究,教学中的散点历史建筑通过城市空间体验路线设置串联起来,共同构成为城市发展历程的见证者和体现者.具体的城市生活附着在抽象的城市空间体验路线中,最终整体输出为立体丰富的杭州城市文化名片.     

蒸压加气混凝土隔墙板施工应用

蒸压加气混凝土隔墙板是具有保温隔热性能强、施工效率高、施工成型质量优异等优良性能的绿色建材.以灵山岛金茂湾项目蒸压加气混凝土隔墙板施工应用为研究对象,通过与传统普通砌筑施工应用进行比较研究分析,主要分析内容如下:蒸压加气混凝土隔墙板材与传统普通砌筑材料外观尺寸偏差、性能要求差异,施工质量与劳动力计划分析,施工进度、成本分析.研究结果表明:在材料外观尺寸偏差、各性能要求方面不相上下,施工过程质量不可控因素少,便于现场管理,垂直平整度、成型效果优异,劳动力投入较少,施工效率高,成本可控,综合效益高,属于经济性墙体,具有良好的工程应用价值.     

试论钢筋混凝土结构中后浇带设置及施工技术

通过后浇带施工,大型的钢筋混凝土结构可以分块进行施工,然后通过浇筑变形缝将整个结构连接成为一个统一的整体,这种技术加快了建筑施工的进度。本文通过分析后浇带的主要功能,以及后浇带设置施工中遇到的具体问题,并探究后浇带设置和施工的主要技术。     

基于无人机的倾斜摄影平台开发

利用无人机采集倾斜摄影数据,改变了传统的测绘作业方式,大幅度提升了作业效率。基于开发出适合小型无人机专用的倾斜摄影平台的目的,利用多台小型相机,通过对摄影平台结构、相机拍照控制、相机数据传输等多个关键技术的研究,开发出了一种轻量级的五拼相机,极大地拓展了倾斜摄影数据采集的手段,提高了数据采集的效率。     

Relative survival of Bacillus subtilis spores loaded on filtering facepiece respirators after five decontamination methods

This study determines the relative survival (RS) of Bacillus subtilis spores loaded on an N95 filtering facepiece respirator (FFR) after decontamination by five methods under worst‐case conditions. Relative survival was obtained by testing after decontamination and after storing the FFRs at 37°C and 95% relative humidity for 24 hours. The decontamination methods involved ethanol, bleach, ultraviolet irradiation (UVA 365 nm, UVC 254 nm), an autoclave, and a traditional electric rice cooker (TERC) that was made in Taiwan. Without decontamination, 59 ± 8% of the loaded spores survived for 24 hours. When 70% ethanol was added to the N95 FFR at a packing density of 0.23, the RS was 73 ± 5% initially and decayed to 22 ± 8% in 24 hours. Relative survival remained above 20% after 20 minutes of UVA irradiation. The other four decontamination measures achieved 99%‐100% biocidal efficacy, as measured immediately after the methods were applied to the test FFRs. Relative survival is a useful parameter for measuring sterilization or degree of disinfection. Bleach, UVC, an autoclave, and a TERC provide better biocidal efficacy than ethanol and UVA. Not only a higher filter quality but also a lower value of RS produced the most decontaminated FFR.     

A simple method for differentiating direct and indirect exposure to exhaled contaminants in mechanically ventilated rooms

Many airborne infectious diseases can be transmitted via exhaled contaminants transported in the air. Direct exposure occurs when the exhaled jet from the infected person directly enters the breathing zone of the target person. Indirect exposure occurs when the contaminants disperse in the room and are inhaled by the target person. This paper presents a simple method for differentiating the direct and indirect exposure to exhaled contaminants in mechanically ventilated rooms. Experimental data for 191 cases were collected from the literature. After analyzing the data, a simple method was developed to differentiate direct and indirect exposure in mixing and displacement ventilated rooms. The proposed method correctly differentiated direct and indirect exposure for 120 out of the 133 mixing ventilation cases and 47 out of the 58 displacement ventilation cases. Therefore, the proposed method is suitable for use at the early design stage to quickly assess whether there will be direct exposure to exhaled contaminants in a mechanically ventilated room.     

从三个层次把握城市设计对开发的控制体系

城市设计对项目开发具有控制的能力.按照控制力度的刚性强弱,城市设计控制开发的方式主要有原则控制、规则控制和标准控制三种.在实际操作中,须有机地综合运用这三种方式,实现优势互补,共同建构城市设计控制开发的体系.     

塑造弧形构筑物模板节约木材新办法

针对钢筋混凝土工程中的异形构件,通过对圆弧结构的施工设计和实施,总结出一种新的模板体系获得较理想的经济效益和施工质量。     

桩靴在静载荷作用下的沉降预测

为了研究桩靴在静载荷作用下的沉降,基于圆孔扩张理论,推导出桩靴在荷载作用下的桩端阻力表达式.将桩端阻力作为桩靴受压状态下的荷载传递函数,结合桩侧摩阻力函数,采用分段位移迭代算法进行计算,预测出桩靴在受压状态下的荷载—沉降曲线.开展砂土中的桩靴静载模型试验,将模型试验结果与理论结果进行对比验证.结果表明:推导的理论公式计...