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STRETCHED-OUT DESIGN OF PRECAST BRIDGE GIRDERS USING HIGH PERFORMANCE CONCRETE

机译:高性能混凝土预制桥梁梁的拉伸设计

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摘要

Under the new, increased competition the precast concrete industry faces, it is safe to say that there we are not part of frozen niches in frozen markets for which established producers compete. Markets and industries are themselves in flux, and to the winners belong not so much the old-fashioned spoils of victory as the right to define the terms of competition in the future. In the bridge industry, precast concrete has been for many years unfairly considered mostly for short, simple span structures. However, with the advancement in engineering design, technology, material properties and quality, the precast concrete industry is likely to increase its edge and become the solution of choice for any span to depth ratio. This presentation will focus on outlining some of the most cost-effective tools available today to the precast concrete industry to achieve this competitive edge. Our inherent benefits such as ease and speed of construction, quality control through certification, maintenance, aesthetics, durability, etc., have provided an excellent performance track record and a sustained growth during the last 50 years. It is time to stretch out the span length coverage of precast bridge girders, as well as the potential usage of precast bridge girders. By simply increasing the knowledge and application of what is available today in our industry we can strengthen our weaknesses associated with depth limitations and/or transportation limits, hence increasing our ability to compete in a market previously reluctant to our material.
机译:在新的,增加竞争的竞争中,预制混凝土行业面临的脸部,可以说,我们不是在冰冻市场中冻结的冻结利基的一部分,为造成的生产者竞争。市场和行业本身就在助焊方面,而赢家则属于胜利的老式战利品,就是在未来定义竞争条件的权利。在桥梁行业中,预制混凝土已经多年来不公平地考虑过短,简单的跨度结构。然而,随着工程设计,技术,材料特性和质量的进步,预制混凝土行业可能会增加其边缘,成为任何跨度深度比的选择的解决方案。本演示文稿将侧重于概述当今最具成本效益的工具,以实现这家竞争优势。我们的固有效益,例如建设的便利和速度,通过认证,维护,美学,耐用性等,在过去50年内提供了出色的性能轨迹记录和持续增长。现在是时候延长预制桥梁梁的跨度覆盖率,以及预制桥梁梁的潜在用途。通过简单地提高我们行业中可用的知识和应用,我们可以加强与深度限制和/或运输限制相关的弱点,因此提高了我们在以前不情愿地竞争我们材料的市场的能力。

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