The mainland is the launch pad for the bridge structure emerging from the ground and approach road.

大陆是桥体结构的起点，桥体结构从地面露出来，伸向道路。

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For the reasons of design, construction and material aging, plate type elastomeric pad used on bridge would appear unusual deformation, cracks, glide etc.

板式橡胶支座在使用过程中，由于设计和施工的原因以及材料老化的原因，易发生异常变形、开裂、滑动支座不能滑动等病害。

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The bigger the pad stiffness and step height, the less the limits of the angles of rotation at bridge ends. There will be different limits requirements with different fastening system parameters.

扣件刚度越大、错台高度越高，梁端转角限值越小，不同的扣件设计参数将有不同的限值要求。

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