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发展轻型木结构住宅的几点建议 总被引：1，自引：0，他引：1
介绍了木结构住宅的特性、国内外发展现状,深刻阐述了在我国发展木结构住宅的重要意义及广阔的发展前景,并对我国发展木结构住宅提出了建议。 相似文献
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<正>目前,木结构在许多国家应用非常普遍。在美国,木结构住宅已经处于市场主导地位,被广泛用于厂房、学校、旅馆、体育馆等;在加拿大,木结构住宅的工业化、标准化和配套安装技术非常成熟~([1]);在北欧的芬兰和瑞典,民居住房的90%为一层或二层的木结构建筑~([2.3]);在日本,也有大量的木结构建筑,即使在人口稠密的东京也是如此~([4])。我国虽然拥有几千年的木结构建筑史,但在过去的几十年由于我国森林资源匮乏,政府提倡以钢代木、以塑带木,木结构房屋被排除在主流建筑之外。近年来,随着人们生活水平的提高,对居室舒适度要求提升,现代木结构建筑逐渐受到关注。在北京、大连、 相似文献
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现代框架式木结构住宅 总被引：2，自引：1，他引：1
介绍了框架式木结构的特点、框架式木结构住宅的建造过程, 同时提出了框架式木结构住宅在防火、防潮、防腐和防蚁方面的技术处理措施, 分析了框架式木结构住宅的发展优势。 相似文献
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近几年来,随着我国人民生活水平的提高,木结构建筑已经进入了中国市场,越来越多的普通消费者对木结构建筑产生了浓厚的兴趣.特别是木结构建筑施工过程中选用生态环保建筑材料也得到了消费者的认可.为了使消费者在购置木屋时正确辨别真伪,下面介绍几种常用的生态建筑材料及其在国内外建筑工程中的应用情况,以飨读者. 相似文献
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Ikuo Ota 《Small-Scale Forestry》2010,9(1):81-92
Forest owners’ cooperatives are one of the leading organizations in the forest sector in Japan. Yusuhara Forest Owners’ Cooperative
(YFOC) in Kochi Prefecture is one of such examples, which obtained FSC forest certification as a resource manager of the forest,
which belongs to more than 1,200 small-scale forest owners. YFOC has successfully expanded sales of FSC-labeled timber in
recent years. Most of their certified timber is purchased by house builders in urban cities including Osaka. This paper analyzes
who desires FSC-certified timber from YFOC and why. Six case studies are reported, which reveal that ecology-oriented house
builders are interested in using FSC certified timber because of traceability of the timber, price advantage from direct dealing,
environmentally sound forest management of YFOC, and relatively high quality of the timber. 相似文献
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通过小径木的力学性能分析，确定小径木可以作为新式木结构房屋的主要建筑用材，从而拓展了小径材在建筑行业的应用领域，使低价值的小径木原材料变成高附加值的建筑产品。 相似文献
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Collaborative forest management (CFM) is a joint forest management approach between government and community. It covers distant communities too, who live out of 5-km periphery of the forest and involves them in forest management. This paper assesses whether the distant communities are deriving benefits from CFM in the form of timber, fuelwood and fodder. A total of 350 households was surveyed using a structured questionnaire. The result indicated that distant users were getting more timber compared to the users who lived close to collaborative forest and it was opposite in case of fuelwood and fodder. About 75% and 85% of fuelwood and fodder needs was fulfilled from the private source- trees grown on private farmland. Although CFM approach is able to supply timber to distantly located households, rich and male-headed households are disproportionately receiving high benefits. Provisioning small timber to the poor for house construction in place of sawn timber which is very expensive, may enhance welfare of the poor. 相似文献
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Juniperus procera Endl. is economically important timber species, but its populations are extremely small and fragmented in its natural habitat, thus, calling for immediate ex situ conservation. Here we examined the effects of seed sources and storage temperature on the longevity of Juniperus procera seed lots through collection and preservation of seeds in seed banks. Seeds were collected from nine sites across the species natural distribution in Ethiopia and stored in four warehouses: modern cold room (5℃), mud house (15℃), concrete block house (17℃ or corrugated iron house (20℃) for 42 months. Every three months, a random sample of stored seeds were drawn and tested for germination. A highly significant variation (p < 0.01) in germination of stored seeds was observed among different storage environments, seed lots, and duration of storage. Over the storage period, seeds stored in the cold room had the highest mean percentage germination, followed by the mud house, corrugated house and blocket house. The cold room (41%) and the mud house (38%) maintained the same level of germination as the intitial germination of the seedlotds (42%). The variation in longevity of stored seeds was significnatly correlated with the initial germination of seed lots (r > 0.80; p < 0.01). Cold storage also resulted in enhancement of germination through its stratification effect that terminated the non-deepphysiological dormancy of juniper seeds. In conclusion, seed lots with good initial germination can be effectively stored in cold room (5℃) up to four years. In the absence of modern cold stores, mud houses can be used as a good alternative to store seeds at local level. 相似文献
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Amenity Value of Forests in Great Britain and its Impact on the Internal Rate of Return from Forestry 总被引：1，自引：0，他引：1
The amenity value of trees was measured by observing how houseprices varied according to differences in the type, composition,and age of forests and woodland in the neighburhood of eachproperty, holding all other variables constant. Statisticallysignificant differences were detected. Broadleaved trees hada positive effect on house prices, while mature Sitka sprucereduced housing values. The estimated amenity values were incorporatedinto discounted cash flow rotation models in order to assessthe joint value of the timber and amenity values of differentrotations. The aggregate wood and amenity value which producedthe highest internal rate of return and the largest net presentvalue was the one in which broadleaved oaks replaced Sitka spruce. 相似文献
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D. P. S. Verma 《Agroforestry Systems》1988,7(1):77-93
Having attained self-sufficiency in food production, India is now concentrating in using wastelands to increase its production of other products of agroforestry namely, fodder, fuel and small timber for the poorer section of society. Many agroforestry practices are being tried towards the attainment of this goal. In one such attempt, a 4 ha plantation was established in 1974 on Community grazing land in the village of Dhanori in Gujarat as a part of the State Village Forests Scheme. Casuarina equisetifolia was planted beca se it suited the site and because the villagers wished it. Grasses grew up naturally as a result of the enclosure. The trees were felled in 1983–4 and the distribution of benefits determined by the village panchayat. The internal Rate of Return was 35%. Villagers benefited from grasses, fuelwood and small timber for house construction and repair and from the employment generated. The success of the project led the village to organize itself into a Tree Grower's Society and undertake further planting in 1985–6. The demonstrated efficiency of the woodlot let to 200 ha of other plantations being established in the area. the poor benefited considerably from the project but if they had a greater say in the deliberations of the panchayat, the benefits could have been even greater. this agroforestry system has the potential of increasing the production of grasses, fuelwood, small timber and fruits (food) from wastelands. 相似文献
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介绍平台框架式木结构的结构形式,并对其设计方法进行探讨,在此基础上以一栋建筑面积30m2、单层框架式木结构房屋为实例,参照最新的木结构设计规范以及相关荷载设计规范,采用LRFD法对结构所承受的荷载以及主要构件进行设计。通过此设计实例,分析轻型木结构的设计步骤,提出一些我国在木结构设计和研究方面所存在的问题,为相关设计和研究人员提供参考。 相似文献
