- 摘 要
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(1 山東省建筑科學研究院，濟南 250031； 2 煙臺市新藝裝飾工程有限公司，煙臺 264000)
［摘要］對現(xiàn)場預制的12m預應力混凝土魚腹式吊車梁進行了試驗研究。通過2點加載測得了該類吊車梁的荷載-變形曲線，并觀察了荷載作用下試驗梁的撓度變化和裂縫發(fā)展情況。論述了靜載試驗方法和具體實施過程，試驗結(jié)果表明：該預應力混凝土魚腹式吊車梁結(jié)構(gòu)工作性能良好，結(jié)構(gòu)強度和剛度均滿足設計和規(guī)范要求。
［關(guān)鍵詞］吊車梁；預應力混凝土；試驗研究；荷載
Experimental study on 12m prestressed concrete fish-bellied crane girders under short-term load
Shang Huaishuai1, Zhou Yingyuan2, Li Haihong2
(1 Shandong Province Research Institute of Building Science, Jinan 250031, China;
2 Yantai Xinyi Decoration Engineering Limited Company, Yantai 264000, China)
Abstract:A test for 12m field precast prestressed concrete fish-bellied crane girders was carried out. The load-strain curve was obtained through experimental investigation by two concentrically in-plane loads. In the process of test, the change of flexibility and crack was observed. The method and the process of the experiment were discussed. The research result shows that the strength and rigidity of prestressed concrete fish-bellied crane girder can meet the demands of design.
Keywords:crane girder; prestressed concrete; experimental study; load
*中國博士后科學基金(20080430183)，中國博士后特別資助基金(200801386)，山東省中青年科學家獎勵基金(2008BS08001)，國家重點基礎研究發(fā)展計劃(973
