GQF-MZL型橋梁伸縮裝置的承重結(jié)構(gòu)和位移控制系統(tǒng)分開，二者受力時互不干擾，分工明確，這樣既保證受力時安全，又能達(dá)到位移均勻，使所有中梁在一個位移控制箱內(nèi)均支承在同一根垂直橫梁上的傳統(tǒng)作法，這樣對大位移量伸縮裝置非常有利，減少了橫梁數(shù)量，使位移控制箱體積減小到*小范圍，節(jié)約了鋼材。該結(jié)構(gòu)還克服了斜向支承式伸縮裝置要求加工和組裝精度相當(dāng)高的苛刻條件，否則四連桿結(jié)構(gòu)極易出現(xiàn)自鎖現(xiàn)象，影響伸縮自由和不易保證位移均勻的弊病。
An overview of bridge expansion joints:
In order to meet the requirements of bridge deformation, usually on the hinged position between the ends of two beams, beam end and the abutment, or between the bridge set expansion joints. Requirements of telescopic seam in both parallel and perpendicular to the two directions of bridge axis can freely telescopic, firm and reliable, vehicle out of date should be smooth, no sudden jump and noise; to prevent blockage of the rainwater and garbage soil infiltration; installation, inspection, maintenance and remove the dirt to simple party will. In the setting of expansion joints, railings and bridge deck pavement should be disconnected. |
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