The donghuayu aqueduct bridge located in meixian county in shaanxi province was first built in 1980 ' s 位于陜西眉縣境內(nèi)石頭河水庫(kù)東干渠上的東滑峪渡漕,始建于上世紀(jì)80年代。
For the safety evaluation of donghuayu aqueduct bridge , the main problem is that no seismic design code is valuable 對(duì)于東滑峪渡槽的安全性能評(píng)估,存在的主要問(wèn)題是渡槽的抗震設(shè)計(jì)無(wú)本行業(yè)的相關(guān)規(guī)范可循。
The seism response analysis of aqueduct bridge is analyzed with modal superposition method based on response spectrum which participant mode of vibration chooses the former 1 0 steps and combinatorial method was srss 渡槽的地震反應(yīng)分析采用振型分解反應(yīng)譜法,參與振型取前10階,組合方法用srss法,求得結(jié)構(gòu)的地震作用效應(yīng)。
This paper has benefited in from close trade ' s experiences and combined with the trait of this aqueduct bridge to bring forward the method of classification evaluation , which was successfully used in the evaluation of this aqueduct bridge 本文借鑒相近行業(yè)經(jīng)驗(yàn),結(jié)合渡槽特點(diǎn),提出了分級(jí)評(píng)估的方法。并成功地運(yùn)用于該渡槽的評(píng)估。對(duì)同類(lèi)型的工程進(jìn)行評(píng)估,有著重要的參考價(jià)值。
It also has important reference value for the similar construction . by the safety and seismic evaluation of this aqueduct bridge , it has shown that ( 1 ) besides the structure of this aqueduct bridge was basically unharmed without some flake of concrete cover and revealing stirrup , its intensity basically reached the need of primary design . ( 2 ) from the side of carrying capacity , rib arch could satisfy the needs under the action of wind and earthquake , but some individual frame crossbeams and most rib arch tie beams could n ' t satisfy the need 通過(guò)對(duì)東滑峪渡槽進(jìn)行安全性能和抗震性能評(píng)估后表明: ( 1 )渡槽除肋拱頂面有保護(hù)層剝落、箍筋外露,結(jié)構(gòu)基本完好,其強(qiáng)度基本達(dá)到西安理工大學(xué)工程碩士專(zhuān)業(yè)學(xué)位論文原設(shè)計(jì)的強(qiáng)度要求; ( 2 )從承載力方面看,在風(fēng)荷載、地震作用下,肋拱基本滿(mǎn)足要求,個(gè)別排架橫梁不滿(mǎn)足要求,肋拱連系梁普遍不滿(mǎn)足要求;計(jì)入水平橫槽向地震作用的工況為設(shè)計(jì)控制工況。