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规格材

规格材的相关文献在1982年到2022年内共计124篇,主要集中在建筑科学、林业、轻工业、手工业 等领域,其中期刊论文97篇、会议论文10篇、专利文献85293篇;相关期刊46种,包括国际木业、华东森林经理、林产工业等; 相关会议7种,包括2011中国木结构技术及产业发展高峰论坛、第二届全国生物质材料科学与技术学术研讨会、2007年中国木材标准化研讨会等;规格材的相关文献由188位作者贡献,包括任海青、江京辉、吕建雄等。

规格材—发文量

期刊论文>

论文:97 占比:0.11%

会议论文>

论文:10 占比:0.01%

专利文献>

论文:85293 占比:99.87%

总计:85400篇

规格材—发文趋势图

规格材

-研究学者

  • 任海青
  • 江京辉
  • 吕建雄
  • 周海宾
  • 郭伟
  • 骆秀琴
  • 殷亚方
  • 费本华
  • 龙超
  • 娄万里
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 李敏敏; 谢文博; 王正; 高子震
    • 摘要: 为使规格材力学性能满足制造足尺正交胶合木 (CLT) 楼板和墙板的需要,笔者采用横向振动法,对加拿大铁杉规格材的顺纹弹性模量进行动态测试及其应力分等研究,并从被测试件中随机抽取50根通过应力波法进行对比测试,以验证测试及分等结果的可靠度.研究表明,所用铁杉规格材顺纹弹性模量平均值均达到制造CLT性能要求;顺纹弹性模量测试结果基本符合威布尔分布规律;依据其顺纹弹性模量性能进行应力分等后,达到1.5E应力等级的铁杉锯材占总数的35.0%,达到2.0E应力等级的铁杉锯材占总数的34.8%;横向振动法测试结果与应力波法测试结果相关系数达到0.815,具有较高的吻合度.上述有利于确保后续CLT的结构设计、性能预测、加工制造和性能评估等工作,并对促进国内CLT木建筑的良性发展具有工程应用价值.%In order to make the mechanical properties of the dimension lumber meet the needs of making full-size cross-laminated timber (CLT) slabs and walls, transverse vibration was used to this study. Dynamic test and stress grading were used for the elastic modulus in parallel of Canadian hemlock dimension lumber. For verifying the reliability of the test and grading, 50 samples were randomly selected from the tested specimens, and performed a comparison test by stress wave. Research indicated that the average elastic modulus in parallel of the hemlock dimension lumber met the requirement of CLT manufacturing, and the results were in accordance with the Weibull distribution. After the stress grading of Hemlock dimension lumber, there were 35.0% reaching the 1.5E, and 34.8% reaching the 2.0E. The correlation coefficient of the results between the transverse vibration and the stress wave was 0.815, and it had high degree of coincidence. The above was conducive to ensuring the subsequent CLT working for structural design, performance prediction, manufacturing and performance evaluation, and it would have engineering application value to promote the benign development for domestic CLT buildings.
    • 李闯
    • 摘要: 近年来,木结构建筑行业在我国快速发展。为了客观了解我国木结构建筑行业的发展状况,本文首先回顾我国木结构建筑的历史概况,介绍近十年我国木结构建筑的发展历程;然后分析我国木结构的建筑形式和发展规模;最后从木结构相关技术及标准研究两个方面,深入概括我国木结构研究现状
    • 武国芳; 任海青; 周海宾; 钟永; 邢新婷; 赵荣军
    • 摘要: Background,objectives and technical processes of the Research Project "Manufacturing and Evaluation of Structural Wood-based Composite Meterial and Members" were introduced.Design method for domestic dimension lumber and oriented strand board,manufacturing technology and the evaluation method for domestic light wood frame trusses and structural insulated panels were reviewed.The project aims to enhance manufacturing ability of domestic wood materials and members,to provide guidelines and technical support for utilizing domestic wood materials in structural applications and to promote localization of light wood frame construction in China.%围绕“结构用木质复合材料和构件制造技术”任务的研究目标和内容、技术路线,总结分析国产规格材和定向刨花板设计方法、轻型木桁架制造技术和设计方法、结构用木质保温板制造与性能评价技术的研究现状,概要介绍了围绕国产材料应用研究课题的总体框架,旨在提升国产结构用木质材料及构件的制造水平,促进国产材料和构件的结构应用,推动轻型木结构建筑材料的本土化发展.
    • 钟永; 任海青; 武国芳; 周海宾; 赵荣军; 邢新婷
    • 摘要: 以不同等级(Ⅰc、Ⅱc、Ⅲc、Ⅳc)的国产兴安落叶松规格材(40mm×90mm×4000 mm)为试验对象,进行足尺抗弯强度测试,采用最小二乘法确定其抗弯强度的最优概率分布模型,再运用可靠度理论分析方法,确定抗弯强度设计值,为改进我国规格材强度设计值的确定方法,促进规格材在建筑结构中的安全设计和合理应用提供依据.%Bending strength (MOR) of Chinese larch (Larix gmelinii) dimension lumber (grades Ⅰc,Ⅱc,Ⅲc and Ⅳc for 40 mm × 90 mm × 4 000 mm) was obtained by full-size bending tests.Optimal probability distribution model for the MOR was investigated by the least square method.According to reliability theory,design values for MOR of dimension lumber with different grades were then determined.The goals of this study were to improve determination method for design values of dimension lumber strength and to provide scientific basis for safety design and reasonable application in wood building structures.
    • 陈秋韵; 滕启城; 高一帆; 阙泽利
    • 摘要: 通过对两种摆放方式(规格材立置和平置)的平行弦木桁架进行静载试验,测试其上下弦各节点挠度,分析杆件摆放方式对木桁架刚度、承载能力和破坏模式等力学性能的影响.结果表明,规格材杆件立置的平行弦木桁架具有较高的刚度和极限承载力,破坏以杆件劈裂为主;而杆件平置的木桁架破坏主要发生在齿板连接的节点处.木桁架弦杆接长对其承载能力影响显著,此处安全性能要求更高,必要时应对对接节点处进行加强处理.%Parallel-chord wood trusses are widely used in floor plane systems of light timber frame structures.In practice,components of parallel-chord wood trusses could be arranged in two ways.One is lumber-on-edge truss and another is lumber-on-flat truss.In this study,deflection of top and bottom nodes of these two kinds of parallel-chord wood trusses were measured through static load tests,bearing capacity,rigidity and failure modes of the nodes were analyzed.The results showed that lumber-on-edge trusses provided a better ultimate bearing capacity and higher rigidity with components' failure as the main failure mode.When it turned to lumber-on-flat trusses,nodes failure was the main failure mode.Chord extension in wood trusses has significant influence on its bearing capacity.Therefore,butt joints shall be strengthened since the safety performance requirement is normally high.
    • 龚迎春; 武国芳; 王朝辉; 骆秀琴; 任海青
    • 摘要: 依据国标GB 50329-2002对杉木规格材进行足尺的抗弯测试,选取正态分布对测试数据进行拟合,利用K-S检验对正态分布进行拟合优度检验,参照极限状态设计法和ASTM D2915-2010标准计算杉木规格材设计值.结果表明,No.1等级规格材的抗弯强度最小;SS、No.1和No.2等级规格材抗弯强度的测试数据均能与正态分布拟合;SS、No.1和No.2等级抗弯强度设计参考值分别为11.01MPa、9.36MPa和9.03MPa.%The specimens of Cunninghamia lanceolata dimension lumber of bending tensile strength were tested by using the Chinese standard of GB 50329-2002.The normal distribution was selected to fit the experimental data.K-S testing was used to estimate goodness of fit for the normal distribution.The design values were calculated according to the limit state design method and ASTM D2915-2010.The results showed that: the MOR15 of No.1 grade was less than that of other grades.The experimental data of bending strength for SS、No.1 and No.2grade were the goodness of fit for the normal distribution.The calculated design values of MOR15 were 11.01,9.36,and 9.03 MPa for SS,No.1 and No.2 grade,respectively.
    • 龚迎春; 王朝辉; 江京辉; 骆秀琴; 任海青
    • 摘要: 杉木具有生长周期快、力学性能好、耐腐性强等优点,被广泛应用于工程木产品的制备,如规格材、胶合木和木基复合材料.但是由于缺少设计值,其在建筑结构领域的使用存在安全隐患.先根据加拿大NLGA分等规则,将杉木规格材分为SS(structural select)、No1和No2三个等级,再根据ASTM D4761-02和ASTM D198-02分别进行足尺的抗压和拉伸测试,选取正态分布和对数分布对测试数据进行拟合,利用K-S检验对正态分布和对数分布进行拟合优度检验.参照木材容许应力法和ASTM D2915-03计算杉木规格材设计值.结果表明:No1等级规格材在15%含水率条件下的抗压和拉伸强度最小,其主要缺陷为节子,对力学性能影响较大;No2等级规格材主要缺陷为钝棱,对强度影响不大.SS等级规格材的抗压和拉伸测试数据与对数分布拟合效果更优;No2等级规格材的抗压和拉伸测试数据与正态分布拟合效果更佳.SS、No1和No2等级规格材抗压强度参考设计值分别为11.50,11.33和11.05 MPa,拉伸强度参考设计值分别为8.95,8.15和7.18 MPa.%Being widely used for dimension lumber, glued lumber and wood-based composites, Chinese fir has the ad-vantages of fast-growing, good mechanical performance and decay resistance. However, the application in the building structures was limited due to the lack of design values of mechanical properties. To utilize the green building material, this study aimed at obtaining the design values of Chinese fir for the building structures. The dimension lum-bers for Chinese fir were divided into structural select ( SS) , No1 and No2 grades according to the NLGA Standard of Canada. The compressive strength and tensile strength of specimens were full-size tested according to ASTM D4761-02 and ASTM D198-02, respectively. The normal and lognormal distributions were selected to fit the experi-mental data. The K-S testing was used to estimate goodness of fit for normal and lognormal distributions. The design value was calculated according to Chinese allowable stress design method and ASTM D2915-03. The results showed that the UCS15( compressive strength under 15% moisture content) and UTS15( tensile strength under 15% moisture con-tent) of No1 grade lumber were lower than that of other lumber grades due to the great influence of knots. Besides, No1 grade lumber contained more knots. In addition, the wane and skips in No2 grade lumber had no significant effect on the wood strength. The experimental data of compressive and tensile strength for SS grade lumber fitted better by using the lognormal distribution. Conversely, the normal distribution fitted No2 grade lumber better than the log-normal distribution did. The calculated design values of UCS were 11.50, 11.33 and 11.05 MPa for SS, No1 and No2 grade lumber, respectively. The calculated design values of UTS were 8.95, 8.15 and 7.18 MPa for SS, No1 and No2 grade lumber, respectively.
    • 韩振华; 陈玲
    • 摘要: 木结构建筑不同于钢筋混凝土结构与钢结构,采用天然木材为原料,历史悠久,源远流长.装配式木结构建筑,应用现代科技,贯彻工业化理念,预先在专业的工厂生产出部分或全部木质构配件,包括墙体与楼板等,然后将其全部运到施工现场予以组装.笔者通过对木结构建筑的分类,提出木结构建筑工业化的可能性.%Wood construction is different from the reinforced concrete structure and steel structure,using natural wood as raw material,which has a long history and can be traced back to the ancient times.The prefabricated wooden structure has applied modern science and technology with the concept of industrialization.Part or all of the wooden components can be prefabricated in the professional factory,such as wall and floor,and then they are transported to the construction site to complete assembly.Therefore,this paper puts forward the possibility of timberwork building industrialization by classifying the types of the wood construction.
    • 王丽; 王滋; 丁青锋; 武国芳; 赵荣军
    • 摘要: In order to explore the tensile property of domestic larch lumber and improve the domestic light wood frame construction,the ultimate load carrying capacity,critical slip stiffness and failure forms in tensile process of the truss plate joint were tested.The results showed that the tensile strength parallel to grain of difference species has significant differences.The ultimate load carrying capacity,critical slip stiffness and peak area of domestic larch dimension lumber were higher than Picea sitchensis.%为探究国产规格材在齿板连接性能方面存在的优劣势,完善国产结构材体系.笔者对两种国产规格材齿板连接节点的板齿极限承载力、临界刚度、破坏形式进行了研究.结果表明:不同种类木材顺纹抗拉强度差异性显著,两种国产落叶松齿板节点板齿极限承载力、临界滑移刚度、峰值区域面积均高于北美云杉.
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