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Weightiness and Lightweight for a Temporary Architecture Sustainable
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《Journal of Civil Engineering and Architecture》 2012年第1期53-62,共10页
In this paper new criteria for designing of temporary architectures, which can be used as a uniform coverage for open spaces, are discussed. Frequently temporary architectures use building techniques and materials lig... In this paper new criteria for designing of temporary architectures, which can be used as a uniform coverage for open spaces, are discussed. Frequently temporary architectures use building techniques and materials lightweight. In the case of temporary architectures the theme of sustainability requires that the structure can be reused in different occasions and contexts. The solution to these issues, developed in this paper, makes use of a innovative constructive procedure of prestressed masonry in blocks of natural stone. This procedure is used for the construction of the vertical supports of the cover, consisting of a tensostructure with shape of hyperboloid, obtained by products standard (steel profiles and membrane). The columns with prestressed blocks of natural stone, dry assembled, allow you to have a modular structure, easily assembled and disassembled, with full recovery of all elements; the stone columns, due to their weight, are able to stabilize the whole structure, even to the dynamic stresses, without using any type of foundation structure fixed to the ground. This paper shows the description of all the elements that make up the new type of temporary architecture designed. 展开更多
关键词 temporary architecture SUSTAINABILITY prestressed masonry natural stone dry assembled.
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节段预制拼装盖梁临时预应力设计
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作者 田周松 《中国市政工程》 2023年第6期10-12,94,共4页
采用节段预制拼装盖梁能够减轻预制节段质量。针对节段预制拼装盖梁在临时预应力作用下的接缝正应力,采用平截面假定和实体有限元2种分析方法进行计算;结果表明,背景工程的接缝断面应力分布存在一定的不均匀性,但大体接近平截面假定的... 采用节段预制拼装盖梁能够减轻预制节段质量。针对节段预制拼装盖梁在临时预应力作用下的接缝正应力,采用平截面假定和实体有限元2种分析方法进行计算;结果表明,背景工程的接缝断面应力分布存在一定的不均匀性,但大体接近平截面假定的计算结果。对于履带吊安装挑臂的施工方法,吊机与临时预应力荷载需逐步转换;通过经验试算确定,并经非线性规划优化后的施工顺序,可使得施工过程中接缝断面压应力不小于目标值且尽量均匀。 展开更多
关键词 节段拼装盖梁 环氧胶接缝 临时预应力
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