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一、自身平衡式杠杆加荷架杠杆加荷架的独特优点是荷载准确且明确恒定,因此它是静力试验的基本设备。尤其是钢筋混凝土构件试验,要求当构件出现裂缝后,不能随意闭合。杠杆加荷则荷载恒定,能保证裂缝稳定。而液压加荷要满足这个要求则困难得多。但是,过去沿用的杠杆加荷架,一直采用双拉
1. The unique advantage of the self-balanced lever load rack lever load rack is that the load is accurate and definitely constant, so it is the basic equipment for static testing. In particular, the test of reinforced concrete components requires that when cracks appear in the components, they cannot be closed at will. When the lever is loaded, the load is constant and the crack can be stabilized. It is much more difficult for hydraulic loading to meet this requirement. However, the lever loader used in the past has been using double pulls.