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| 确定刚架系杆拱桥合理吊杆力及成桥状态的分步算法探讨 | |
| 引用本文： | 姚君芳,盛兴旺,罗劲松.确定刚架系杆拱桥合理吊杆力及成桥状态的分步算法探讨[J].铁道建筑技术,2011(6):1-6,27. |
| 作者姓名： | 姚君芳 盛兴旺 罗劲松 |
| 作者单位： | 1. 铁道第三勘察设计院集团有限公司,天津,300142 2. 中南大学土木建筑学院,长沙,410075 3. 中国土木工程集团有限公司,北京,100038 |
| 摘 要： | 对刚架系杆拱桥而言,合理确定成桥状态下的吊杆力是一项十分重要而繁杂的工作。结合永修刚架系杆拱桥,引用斜拉桥合理成桥状态计算中的方法,提出刚架系杆拱桥的综合应力平衡法、二次规划法、弯曲能量法的分步算法来确定其合理成桥状态。分两步来确定合理成桥状态：先确定主梁的合理受力状态;然后再根据合理成桥状态的要求确定全桥的恒载状态,该方法简单、有效。 |
| 关 键 词： | 刚架系杆拱桥 有限元 合理成桥状态 吊杆内力 |
Exploration on Fractional-step Algorithm and Optimization Method for Ascertainment of the Reasonable Tensile Force of Rod and Reasonable Finished Dead State of Arch Rigid Frame Bridge |
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| Yao Junfang,Sheng Xingwang,Luo Jinsong.Exploration on Fractional-step Algorithm and Optimization Method for Ascertainment of the Reasonable Tensile Force of Rod and Reasonable Finished Dead State of Arch Rigid Frame Bridge[J].Railway Construction Technology,2011(6):1-6,27. | |
| Authors: | Yao Junfang Sheng Xingwang Luo Jinsong |
| Institution: | Yao Junfang1,Sheng Xingwang2,Luo Jinsong3(1.The Third Railway Survey and Design Institute Group Corporation,Tianjin 300142,China,2.School of Civil Engineering and Architecture of Central South University,Changsha 410075,3.China Civil Engineering Construction Corporation,Beijing 100038,China) |
| Abstract: | For rigid-framed tied arch bridge,It is an important and difficult job to ascertain the designed tensile force of rod in reasonable finished dead state.By Combining Yongxiu rigid-framed tied arch bridge and quoting the calculational methods for ascertainment of reasonable finished dead state of cable-stayed bridge,This paper builds the fractional-step algorithm to ascertain the reasonable finished dead state of rigid-framed tied arch bridge by composing stress balance method,quadratic programming method and... |
| Keywords: | rigid-framed tied arch bridge finite element reasonable finished dead state tensile force of rod |
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