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（1 太原理工大學(xué)建筑與土木工程學(xué)院， 太原 030024； 2 山西省建筑設(shè)計(jì)研究院， 太原 030013）
［摘要］現(xiàn)有傳感器在古建木構(gòu)試驗(yàn)應(yīng)用中的局限性明顯，現(xiàn)結(jié)合木構(gòu)承載和變形的特點(diǎn)，引入了彈性應(yīng)變式傳感器。標(biāo)定數(shù)據(jù)表明：彈性應(yīng)變式傳感器各項(xiàng)靜態(tài)技術(shù)參數(shù)較好，應(yīng)變與所求的力和位移之間具有顯著的線性相關(guān)性。該傳感器可用來測量枓栱構(gòu)件自身變形及構(gòu)件間相對位移和靜摩擦系數(shù)。在足尺古建木構(gòu)試驗(yàn)中，彈性應(yīng)變式傳感器數(shù)據(jù)可靠，重復(fù)性較好。最后，推導(dǎo)了間接法求絕對位移量的計(jì)算公式。
［關(guān)鍵詞］彈性應(yīng)變式傳感器； 壓縮變形； 相對位移； 靜摩擦系數(shù)
中圖分類號：TU366-2文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2016)15-0110-04
Development of the elastic strain sensor and its application in ancient timber structure tests
Chen Jinyong1，2, Niu Qingfang1, Shi Xiwang1, Wei Jianwei1, Li Tieying1
(1 College of Architecture and Civil Engineering， Taiyuan University of Technology， Taiyuan 030024， China;2 The Institute of Shanxi Architectural Design Research, Taiyuan 030013, China)
Abstract:Existing sensors have obvious application limitations in the ancient timber structure test. Combined with timber structure′s bearing and deformation characteristics, elastic strain sensor was introduced. The calibration data show that all the static technical parameters of the elastic strain sensor are well, and there is an obvious linear correlation between the strain and the calculated force and displacement. The sensor can be used to measure the Dougong member′s deformation and relative displacement and static friction coefficient between members. In the full-scale ancient timber structure test, data of elastic strain sensor is reliable and repeatable. Finally, the calculation formula of the absolute displacement using the indirect method was derived.
Keywords:elastic strain sensor; compression deformation; relative displacement; static friction coefficient
*國家自然科學(xué)基金重點(diǎn)項(xiàng)目（51338001），國家自然科學(xué)基金項(xiàng)目（51278324）。
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