澳洲麦考瑞代写assignment 隧道形式

2020-06-18 01:18

隧道形式是一种系统的技术,已知产生高质量的整体结构与重复的细胞组成。这是一种现代的方法,允许使用钢模板同时浇铸水平和垂直元素,这种钢模板可以在其他项目中重复使用(Construction Tunnel Form, 2015)。现浇混凝土进入两个半隧道,形成墙和板。两个半隧道l形形式被用来塑造结构(Tavafoghi & Eshghi, 2013)。隧道形式的供应商可在整个英国,他们曾用于高层学生住宿发展。根据项目需要,模板偶尔会使用热风鼓风机加热,以加速混凝土的养护(Deshmukh & Shalgar, 2016)。工作的重复性使得现场的错误更少,因为出错的机会更少(Nasvik, 2003)。它减少了冷弯接头的数量,减少了对石膏匠和电工等施工后行业的需求(Deshmukh & Shalgar, 2016)。图4为隧道模板的典型板循环。采用隧道形式建造的结构是经过地震验证的,可以将声音降低到50分贝,这是减少声音传播的理想方法——这是学生宿舍的一个关键问题(Sawab, 2018)。由此产生的结构具有优良的热质量和声学性能,结构稳定。模板全部由钢材制成,可重复使用1000次,使整个过程灵活经济。隧道形式与其他MMC,如框架填充板系统(NHBC Foundation, 2006)很好地工作。施工速度和更少的劳动力是使用隧道形式和更低的成本的主要优势之一(Nasvik, 2003)。拆除模板后,结构将需要向后支撑。在处理预制结构时,这个过程是不必要的,而且会增加额外的时间和成本。此外,隧道形式允许更大的误差幅度比预制面板。
澳洲麦考瑞代写assignment 隧道形式
 Tunnel forms are a systematic technique known to produce high quality monolithic structures with repetitive cellular compositions. It is a modern method which allows horizontal and vertical elements to be cast simultaneously using steel formwork which can be reused on other projects (Construction Tunnel Form, 2015). In-situ concrete is poured into two half tunnels to form walls and slabs. Two half tunnel L-shaped forms are used to shape the structure (Tavafoghi & Eshghi, 2013). Tunnel forms suppliers are available throughout the UK and they have previously been used for high rise student accommodation developments. Depending on the project needs, the forms are occasionally heated using hot air blowers to accelerate the curing of the concrete (Deshmukh & Shalgar, 2016). The repetitive nature of the work results in less mistakes on site because there is less chance for error (Nasvik, 2003).  It reduces the number of cold-formed joints and the requirement for post construction trades such as plasterers and electricians (Deshmukh & Shalgar, 2016). Figure 4 portrays the typical slab cycle of tunnel formwork.The structures constructed using tunnel forms are earthquake proven and provide a sound reduction of 50 decibels which is ideal to reduce sound transmission – a critical problem in student accommodation (Sawab, 2018). The resulting structure has excellent thermal mass and acoustics and is structurally stable. Formwork is made entirely from steel which can be re-used up to 1000 times which makes the process versatile and economical. Tunnel forms work well with other MMC such as framed infill panel systems (NHBC Foundation, 2006). Speed of construction with less labour is one of the main advantages of using tunnel forms as well as lower costs (Nasvik, 2003). After removing the forms, the structure will need to be back propped. This process is not necessary when dealing with precast structures and adds extra time and costs. Moreover, tunnel forms allow a greater margin of error than precast panels.
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