船廠工業(yè)地坪力學性能對比試驗研究*
吳毅彬1，倪健公2，瞿革2
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(1 廈門理工學院， 廈門 361024； 2 中船第九設計研究院工程有限公司， 上海 200063)
［摘要］為了解船廠工業(yè)地坪的實際力學性能與使用狀態(tài)，采用場地試驗研究方法，對目前造船基地中常用的三類地坪：瀝青混凝土地坪、聯(lián)鎖塊地坪、鋼筋混凝土地坪開展靜力加載試驗研究，分析地坪結構層及地基在荷載作用下的應力、應變和沉降變形等規(guī)律。研究結果表明，瀝青混凝土地坪整體剛度小，面層應力擴散能力差，荷載作用下地基的沉降變形破壞類似沖切變形破壞；聯(lián)鎖塊地坪本身具有一定的剛度，但在加載后期變形仍明顯；鋼筋混凝土地坪的整體剛度最優(yōu)，面層的應力擴散能力強，地坪面層的受力狀態(tài)比較接近于板式構件的受力狀態(tài)。在此基礎上綜合分析了地坪各層附加壓應力及地坪層擴散角的變化趨勢。［關鍵詞］大型船廠; 瀝青混凝土地坪; 聯(lián)鎖塊地坪; 鋼筋混凝土地坪中圖分類號：TU375.5 文獻標識碼：A 文章編號：1002-848X(2015)21-0094-07
Comparison test study on mechanical property of shipyard industrial floorWu Yibin1, Ni Jiangong2, Qu Ge2(1 Xiamen University of Technology, Xiamen 361024, China; 2 Shipbuilding NDRI Engineering Co., Ltd., Shanghai 200063, China)Abstract: In order to understand the mechanical properties and use state of large shipyard industrial floor, the static loading field tests were processed on three shipyard floor in common use, including asphalt concrete floor, interlocking block floor and reinforced concrete floor. The laws of compressive stress, strain and settlement deformation in different floor structure layers under the loading were studied. Test results show that the asphalt concrete floor, which has small overall stiffness and bad stress dispersion, suffers the settlement deformation similar to the punching failure deformation. The interlocking block floor has a certain stress diffusion capacity, but also has obvious deformation in the later period of loading. The reinforced concrete floor has the best overall stiffness and stress dispersion, the stress state of which is closed to plate member. Based on the experimental data, the variation trends of additional compressive stress of different layers and stress dispersion angle of the floor were studied.Keywords: large shipyard; asphalt concrete floor; interlocking block floor; reinforced concrete floor
*上海市青年科技“揚帆計劃”科研課題項目（14YF1414800），上海市人才發(fā)展資金計劃資助（2014031），上海市科研計劃課題項目(1104H105000)。作者簡介：吳毅彬，博士，Email: 53686090@qq.com。
