...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Steel construction >SPS bridge decks for new bridges and strengthening of existing bridge decks
【24h】

SPS bridge decks for new bridges and strengthening of existing bridge decks

机译：SPS桥面用于新建桥梁和加固现有桥面

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The sandwich plate system (SPS) is a structural composite material made up of two metal plates bonded to a polyurethane elastomer core. SPS delivers high strength and stiffness, making it an excellent alternative to conventional stiffened steel and reinforced concrete. For strengthening of orthotropic bridge decks, SPS Overlay can be used to create a stiff bridge deck without removing the original plates. The renewed deck improves the distribution of wheel loads across the longitudinal stiffening elements, decreases deck curvatures associated with large concentrated wheel loads, extends the fatigue life of fatigue-critical welds and increases the life of the wearing surface and the whole bridge. For new bridge applications, prefabricated SPS bridge deck plates reduce the dead load by up to 70 % compared with concrete bridge decks, thus allowing bridges to carry significantly greater live load without the need for girder or pier strengthening. Deck replacement can be completed while leaving the steel or concrete girders in place or, where speed of erection is critical, pre-assembled longitudinal deck-girder units can be used.
机译：夹心板系统（SPS）是一种结构复合材料，由粘结到聚氨酯弹性体芯上的两个金属板组成。 SPS具有很高的强度和刚度，使其成为传统加劲钢和钢筋混凝土的理想替代品。为了增强正交异性桥面板，可以使用SPS叠加层创建坚固的桥面板，而无需移除原始板。更新的甲板改善了车轮载荷在纵向加强元件上的分布，减少了与较大集中车轮载荷相关的甲板曲率，延长了对疲劳至关重要的焊缝的疲劳寿命，并延长了磨损表面和整个桥的寿命。对于新型桥梁应用，预制的SPS桥面板与混凝土桥面板相比，可将静载降低多达70％，从而使桥梁能够承受更大的活载，而无需加固大梁或墩。可以在将钢制或混凝土梁放置在适当位置的同时完成甲板更换，或者在安装速度至关重要的情况下，可以使用预组装的纵向甲板梁单元。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号