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劉軍生，韓 立，劉 義，劉 偉
（陜西省建筑科學(xué)研究院，西安710062）[摘要] 對鄭西客運專線西安北站預(yù)應(yīng)力混凝土梁施工過程進(jìn)行了實時監(jiān)測。通過對試驗數(shù)據(jù)的分析，得到了預(yù)應(yīng)力筋和孔道壁之問的摩擦系數(shù)，預(yù)應(yīng)力鋼絲的內(nèi)縮值，梁的撓度以及梁中截面的應(yīng)力分布狀態(tài)等結(jié)果，在此基礎(chǔ)上給出了設(shè)計建議。
[關(guān)鍵詞] 鄭西高鐵；監(jiān)測；無粘結(jié)預(yù)應(yīng)力Monitoring analysis on prestressed concrete beam of Xi'an north railway station
Liu Junsheng, Han Li, Liu Yi, Liu Wei
(Shaanxi Provincial Academy of Building Research, Xi'an 710062, China)Abstract: The prestressed concrete beam construction process ofXi'an north station was monitored, and the test data was also measured. Through analysis of the experimental data, the coefficient of friction was obtained between the pore wall and the tendons. The reducing value of the inner prestressed steel wire was also obtained. Beam deflection and the stress distribution ofbeam cross section were gained. Some suggestions for such projects are also presented.
Keywords: high speed railway from Zhengzhou to Xi'an; monitoring; unbonded prestress
