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英语翻译3.3 Design of the ECC-link-slab The design procedure of

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英语翻译
3.3 Design of the ECC-link-slab The design procedure of an ECC link-slab is detailed in Lepech and Li [19].Experimental verification of the performance of ECC link-slab in accordance with this design is described in [5].Here,a synopsis of the design aspects relevant to the present ISMD illustration is given.
The geometry of the link-slab and its connection to the deck slabs ts and the supporting girder is shown in Fig.3.The height of the length slab ts is assumed the same as that of the adjacent concrete deck.The debond zone is the center section of the link slab in which all shear connectors between the girder and deck are removed to prevent composite action between girder and deck,so as to allow hinge action.Zia et al.[20] found that up to 5% of each adjacent bridge deck may be debonded without affecting the simple span design assumption of the adjacent spans.The full length Lls of the link slab includes portions connected to the girders via shear studs.This geometry moves the high stress concentration at the ends of the debond zone away from the potentially weaker interfaces between the link-slab and the deck slabs.
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3.3 ECC链接桥板的设计
ECC链接桥板的设计过程详见Lepech和Li 的文献[19].符合本设计的ECC链接桥板性能的实验验证在文献[5]中描述.这里,给出了与本ISMD图示说明有关的设计方面的概要.链接桥板的几何形状及其与桥面桥板ts板和支撑大梁的连接示于图3.长度桥板ts的高度假设为与相邻的混凝土桥板的相同.脱接合区是链接桥板的中心段,其中,大梁和桥面之间的所有抗剪切连接件都被除去,以防止大梁和甲板之间的复合作用,从而允许铰链作用的发挥.Zia等人 [20]发现,每个相邻桥面最多有5%可以脱接合而不影响相邻跨度的简单跨度设计假设.链接桥板的全长Lls包括通过剪切螺栓连接到主梁的部分.这种几何结构将脱接合区两端处的高应力集中从链接桥板和桥面桥板之间潜在的薄弱界面处移开.