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钢筋混凝土桥梁的维修检查作业,过去多用绳索吊木板或木杆临时扎成的吊脚手,安全没有保证,而当裂纹多且遍及全梁时,吊脚手的移动就更困难。1964年,我段曾试制多种双轨吊栏,用于混凝土梁及钢梁。由于桥跨梁式的影响,只能按一跨一栏设置,这样不但投资费用大,而且还要增加附属设备。桥梁工段三
Reinforced concrete bridge maintenance inspection operations, in the past with more rope hanging wood or wood temporarily tied into the scaffolding, there is no guarantee of safety, and when the crack more than and throughout the beam, the scaffolding moves more difficult. In 1964, I had trial production of a variety of double rail hanging column, for concrete beams and steel beams. Due to the effect of bridge spanning beam, it can only be set by one column, which not only costs the investment but also increases the auxiliary equipment. Bridge section three