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首页> 美国政府科技报告 >Research Report on Nail-Joints in Timber Structures. Part III
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Research Report on Nail-Joints in Timber Structures. Part III

机译：木结构钉接头研究报告。第三部分

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摘要

Nail joints are suitable for use in light and medium structures like roof trusses, beams and columns. Traditional carpentry joints in such structures normally make use of heavy steel gusset plates, jibs and cotters and they call for employment of skilled carpenters. In nail joints these fastening devices are dispensed with and in their place, ordinary wire nails are utilized. The jointing method is also very simple and does not need skilled workmen. The Forest Research Institute has obtained data on the behavior of nail joints through a number of tests on primary as well as secondary species of timber. Various factors that affect the strength of nail joints, like, the type of nails, pre-bores and the direction of application of load with respect to the grains, have been taken into account. The findings of the research work are presented in this report. It is hoped that the information in this publication will promote increased adoption of nail jointed construction for effecting economies. The publication also serves the cause of secondary timbers by making available reliable research data, which is an essential pre-requisite for their acceptance.

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