- 摘 要
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（1 東南大學(xué)土木工程學(xué)院， 南京 211189；2 南京林業(yè)大學(xué)生物質(zhì)材料國家地方聯(lián)合工程研究中心， 南京 210037；3 阿伯特大學(xué)土木與環(huán)境工程系， 埃德蒙頓 T6G1H9； 4 同濟(jì)大學(xué)土木工程學(xué)院， 上海 200092）
［摘要］工程竹順紋受壓極限狀態(tài)存在顯著的非彈性響應(yīng)，采用線彈性理論計算工程竹受彎與偏心受壓構(gòu)件強度會導(dǎo)致其極限承載力被嚴(yán)重低估。因此，工程竹順紋應(yīng)力應(yīng)變關(guān)系的非彈性特點對工程竹構(gòu)件的極限承載力與變形影響不可忽略。系統(tǒng)總結(jié)了工程竹基本力學(xué)性能、工程竹受彎構(gòu)件和壓彎構(gòu)件非彈性分析等方面的研究成果，列出了受彎構(gòu)件和壓彎構(gòu)件極限承載力計算的主要公式。不同于現(xiàn)行規(guī)范中的強度校核公式，公式考慮了材料受壓非線性，可用于計算構(gòu)件極限承載力，為進(jìn)一步給出受彎構(gòu)件、壓彎構(gòu)件承載力實用計算公式提供了依據(jù)。
［關(guān)鍵詞］工程竹；非彈性模型；承載力極限狀態(tài)；受彎構(gòu)件；壓彎構(gòu)件
中圖分類號：TU366-1文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2021)09-0114-06
Overview on inelastic design method of engineered bamboo structures
HUANG Zirui1,3, CHEN Zhongfan1, HUANG Dongsheng2, HE Minjuan4
(1 School of Civil Engineering, Southeast University, Nanjing 211189, China; 2 National Engineering Research Center of Biomaterials, Nanjing Forestry University, Nanjing 210037, China;3 Department of Civil & Environmental Engineering, University of Alberta, Edmonton T6G1H9, Canada; 4 School of Civil Engineering, Tongji University, Shanghai 200092, China)
Abstract:Engineered bamboo exhibits pronounced inelastic response once the material undergoes its compressive ultimate state, so using linear elastic theory to calculate the strength of bending and eccentric compression engineered bamboo members causes its ultimate bearing capacity to be seriously underestimated. Therefore, the inelastic characteristics of the stress-strain relationship along the grain of the engineered bamboo cannot be ignored on the ultimate bearing capacity and deformation of the engineered bamboo members. The basic mechanical properties of engineered bamboo, the inelastic analysis of engineered bending bamboo bending members and compression-bending members were systematically summarized, and the main formulas for calculating the ultimate bearing capacity of bending members and compression-bending members were listed. Different from the strength check formula in the current code, the formula takes into account the nonlinearity of the material under compression and could be used to calculate the ultimate bearing capacity of members, providing a basis for further giving practical calculation formulas for the bearing capacity of bending members and bending-compression members.
Keywords:engineered bamboo; inelastic model; ultimate state of bearing capacity; bending member; compression-bending member
*國家自然科學(xué)基金項目(51778299)。
作者簡介：黃子睿，博士，Email: huang_zirui@126.com。
