Experimental Study of Aseismic Behaviors of Flexural Tenon Joint, Through Tenon Joint and Dovetail Joint Reinforced With Flat Steel Devices [扁钢加固半榫,透榫及燕尾榫抗震性能试验研究] - 文章详情页

作者：

Huan, J. (Huan, J..) | Ma, D. (Ma, D..) | Guo, X. (Guo, X..) (学者：郭霞) | Xu, S. (Xu, S..) (学者：徐硕)

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Scopus PKU CSCD

摘要：

To　solve　the　problem　of　anti-seismic　capacity　decline　of　aging　mortise　and　tenon　joints,　four　types　of　flat　steel　reinforcement　devices　were　designed　and　manufactured　based　on　the　reversibility,　nondestructive　and　intention　of　preserving　the　semi-rigid　characteristics　of　mortise　tenon　joints.　The　devices　were　distinguished　from　each　other　in　whether　with　a　moveable　slot　and　the　reinforcement　was　fixed　to　the　column　or　not.　The　flat　steel　reinforcement　devices　were　applied　to　half　tenon　joints　through　tenon　joints　and　dovetail　joints.　12　tenons　and　mortise　joints　were　designed　and　manufactured　according　to　the　Fabrication　Methods　of　Song　Dynasty,　including　4　half　tenon　joints,　4　through　tenon　joints　and　4　dovetail　joints.　The　scale　ratio　was　1:3.52.　All　the　joints　were　slightly　damaged　by　cyclic　loaded　before　the　low-cycle　reversed　loading　experiment　was　carried　out.　The　seismic　performance　parameters　of　joints　such　as　reinforcement　load-displacement　hysteresis　loops,　skeleton　curves,　degradation　of　rigidity　and　energy　dissipation　capacity　were　compared　and　studied　before　and　after　reinforcement.　The　results　show　that　all　the　hysteresis　loops　of　joints　have　obvious　pinch　effect　which　indicates　slippage　occurred　between　the　mortise　tenon　joints　and　the　semi-rigid　characteristics　of　joints　were　reserved　after　reinforcement.The　energy　dissipation　capacity　of　the　joints　grows　in　a　parabolic　way　with　the　increase　of　displacement　loads.　The　rigidity,　peak　load　and　energy　dissipation　capacity　of　the　joints　were　improved　after　reinforcement.　The　reinforcement　effect　of　the　strengthening　devices　which　was　fixed　to　the　column　was　better　than　others.　The　results　show　the　seismic　capacity　of　mortise　tenon　joints　can　be　effectively　improved　by　strengthening　the　connection　between　reinforcement　and　wood　components.　Finally,　suggestions　on　how　to　further　enhance　the　reinforcement　effect　of　the　four　types　strengthening　devices　were　put　forward.　©　2019,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.

关键词：

Dovetail joints; Flat steel reinforcement devices; Half tenon joints; Seismic behavior; Throughtenon joints

作者机构：

[ 1 ] [Huan, J.]Institute of Earthquake Engineering, Beijing University of technology, Beijing, 100124, China
[ 2 ] [Huan, J.]Key Scientific Research Base of Safety Assessment and Disaster Mitigation for Traditional Timber Structure (Beijing University of Technology), State Administration for Cultural Heritage, Beijing, 100124, China
[ 3 ] [Ma, D.]Institute of Earthquake Engineering, Beijing University of technology, Beijing, 100124, China
[ 4 ] [Ma, D.]Key Scientific Research Base of Safety Assessment and Disaster Mitigation for Traditional Timber Structure (Beijing University of Technology), State Administration for Cultural Heritage, Beijing, 100124, China
[ 5 ] [Guo, X.]Institute of Earthquake Engineering, Beijing University of technology, Beijing, 100124, China
[ 6 ] [Guo, X.]Key Scientific Research Base of Safety Assessment and Disaster Mitigation for Traditional Timber Structure (Beijing University of Technology), State Administration for Cultural Heritage, Beijing, 100124, China
[ 7 ] [Xu, S.]Central Research Institute of Building and Construction Co., Ltd., Beijing, 100088, China

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