A primary study of the acoustics of Chinese traditional theatrical buildings

The traditional performing arts and theatrical buildings in China can be traced back to a long history and were well developed during Song and Yuan Dynasties, 11th-14th centuries. Pavilion stage, opened on three sides and thrusting into the audience area, was unique and the most popular form in the open-air theatres, the courtyard theatres, and the indoor theatres up to the present day. As the traditional Chinese opera is performed in an abstract way, no stage settings are required and used. Therefore, the pavilion stage including the flat or domed ceiling and the back wall is virtually functioned as a reflective shell, which increases the early reflections and also intensifies the sound in the audience area. Meanwhile, it provides sufficient self-support to the performers. Acoustical parameters including reverberation time RT, early decay time EDT, acoustic ratio C50, strength index (loudness) G, and stage support factor ST1 were measured and reported on several traditional theatrical buildings.     

厅堂扩声声像的探讨

介绍了双路扬声器重放的原始声场效果，对使用强度型立体声拾声、双路扬声器重放扩声系统的厅堂会使声像(声源的幻像)位置和真实声源位置产生偏差，甚至出现严重的分离现象进行了分析。     

厅堂音质评价参量的相关性分析

当代室内声学专家经常选用的评价厅堂音质的物理参量，其间有几个量是相关的。作为室内音质设计的依据．必须寻找基本相互独立的参量，才有更大的实用意义。     

某剧场室内热环境CFD模拟分析

空调系统形式对于高大空间剧场的室内环境具有决定性影响,为验证空调系统形式的合理性,在设计阶段采用模型实验是不现实的,而CFD模拟是一种成本低、速度快、资料完备的有效方法;采用计算流体力学模拟软件STARCD对某剧场夏季和冬季室内热环境进行模拟,根据模拟结果,分析了空调系统设计方案的合理性,并提出改进建议。     

国家大剧院观众厅空调系统和气流组织方式的设计和分析

介绍了观众厅座椅下送风方案。通过对置换通风和空调系统下送风方式的分析和实测，总结出这种气流组织的设计计算方法。全年能耗分析显示，为达到高标准的卫生和舒适要求采用30m^3／h人均新风量的椅下送风空调方式，比15m^3／h人均新风量的混风变新风比空调系统制冷量增加50．9％。     

近代声学中的数字化技术

近代声学中目前研究和开发的数字化技术方面的问题，正在逐渐引起关注并进一步发展。例如实时频谱分析，声强测量，脉冲测量法，厅堂声场模拟，扩声音质模拟，有源降噪系统物自适应控制，工厂内外噪声预测，噪声源识别等。     

大礼堂分体定向倒塌爆破拆除

待拆的钢筋混凝土框架结构大礼堂纵向比横向长度大,高宽比较小,且梁柱截面较大,墙体较厚,如何确保爆破安全使其整体定向倒塌且充分解体,具有一定难度。本文论述了爆破方案的选择,预处理,分体式爆破的炮孔布置及孔网参数,起爆网路设计以及所采取的爆破安全措施。爆破效果非常理想。     

大礼堂分体定向倒塌爆破拆除

待拆的钢筋混凝土框架结构大礼堂纵向比横向长度大,高宽比较小,且梁柱截面较大,墙体较厚,如何确保爆破安全使其整体定向倒塌且充分解体,具有一定难度。本文论述了爆破方案的选择,预处理,分体式爆破的炮孔布置及孔网参数,起爆网路设计以及所采取的爆破安全措施。爆破效果非常理想。     

现代电影院建筑的工艺设计--银幕与观众厅尺度

在现代电影院设计中,工艺设计是观众厅设计的核心。观众厅的尺度与银幕之间有密切的关系;因此,要对放映工艺和电影技术有充分的了解才能立确的决定银幕的宽度和厅的平面空间尺度。银幕的宽度、挂高、亮度,以及放映机的光通量、焦距等都是电影观众厅设计的重要因素。     

Mathew & Ghosh Architects

The work of Mathew & Ghosh Architects (Nisha Mathew-Ghosh and Soumitro Ghosh) boldly extends an abstract Modernist language and at the same time draws from the vitality of places. While the firm's early works were small in scale, mostly residential in nature and based on a reappraisal of the early Corbusian idiom, recent projects include large-scale urban and landscape interventions with diverse conceptual and metaphorical imperatives. They have moved from a more reticent stance to the urban exuberance of their more recent projects (for example, their own office building), something akin to a ‘savage architecture’ as posited by Kazuo Shinohara in the context of the unsynchronised nature of the modern city. The architects' object of contemplation is the urban ‘box’, whether a private residence, office or part of a church. The box is first fractured and reconstructed as a bricolage of tectonic fragments, memories and events, all tenuously related as if unity in a contemporary culture is for ever denied. Like the Japanese notion of ‘ma’, the moment between fragments - a slit or an emptiness between two hovering planes - is telling. Mathew & Ghosh participate in the continuity of a historical narrative yet mark out the fissures and disjunctions; sometimes negotiations with the continuity emerge from unintended interstices. While these configurations of the contemporary urban ‘box’ are both contextual and abstract, they are also phenomenologically rich. There is a sustained dialect to the architecture of Mathew & Ghosh that includes consummate materiality and fine crafting, light as a medium, and always, as Nisha Mathew-Ghosh states, ‘good spatial possibilities’. Copyright © 2007 John Wiley & Sons, Ltd.