Fatigue Check Method in the Performance Based Design for Slab Decks of the Steel Bridge

钢桥板桥面性能化设计中的疲劳校核方法

• 批准号: 11450176
• 负责人: HAMADA Sumio
• 金额: $ 7.1万
• 依托单位: YAMAGUCHI UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11450176/
• 关键词: PRECAST SLAB; CONNECTION; FATIGUE STRENGTH; PUNCHING SHEAR STRENGTH; 押抜きせん断強度; 強度算定式; RC床版; PC床版; 部材安全係数; 破壊確率; 確率分布関数; 安全係数

Since slabs are subjected direct moving loads, fatigue performance is the most significant in the performance based design method. In the present study fatigue performance of the concrete slab is surveyed. The loading of the slab is repeated and moving. Not only a located load fatigue strength but also the moving load fatigue strength are related to the static located load strength of the slab under punching shear. The fatigue strength under a moving load is presumably related to the repeated number. In order to study the fatigue strength under a moving load, the static strength and the relationship between strength and repeated number are evaluated. Tests were conducted by the loading test machine and moving test machine. Since the static strength is scattered naturally, the statistic properties are also required.Several slabs were tested under moving repeated load as well as reinforced concrete slabs. These slabs include a prestressed concrete slab and a steel concrete composite slab. From these tests a performance based design method for slabs is proposed by the committee in the Japan Society of Civil Engineering. The committee is chaired by Hamada, who is an executor of the project. The performance based design method is also proposed by a committee in the Japan Steel Structure Institute. These performance based design methods includes performances related to the fatigue strength under moving load.

由于平板受到直接移动载荷的约束，因此疲劳性能是基于性能的设计方法中最重要的。在本研究中，调查了混凝土板的疲劳性能。板的加载重复并移动。不仅定位的负载疲劳强度，而且移动的负荷疲劳强度与打孔剪切下的平板的静态负载强度有关。运动负载下的疲劳强度可能与重复数字有关。为了研究移动负荷下的疲劳强度，评估了强度和重复数量之间的静态强度和关系。测试是通过加载测试机和移动测试机进行的。由于静态强度自然散射，因此还需要统计特性。在移动重复的负载以及钢筋混凝土板上测试了几个板。这些平板包括预应力的混凝土板和钢混凝土复合板。从这些测试中，日本土木工程学会委员会提出了基于绩效的平板设计方法。该委员会由该项目的执行者Hamada主持。日本钢结构研究所的委员会还提出了基于绩效的设计方法。这些基于性能的设计方法包括与移动负载下疲劳强度有关的性能。

项目成果

Sumio HAMADA: "A Study on the Evaluation for the Punching Shear Strength of PC Slabs"Int'l Workshop on Punching Shear Capacity of RC Slabs-Proceedings. 449-456 (2000)

Sumio HAMADA：“PC 板冲剪强度评估研究”RC 板冲剪能力国际研讨会 - 论文集。

奥村征史: "PC床版の押抜きせん断耐力評価式に関する一考察"コンクリート工学年次論文報告集. 21巻3号. 559-564 (1999)

奥村正志：“PC楼板冲切强度评价公式的研究”《混凝土工程年报集》，第21卷，第3期。559-564（1999）。

毛 明傑: "PC床版の押抜きせん断耐力算定式に関する実験的研究"第53回土木学会中国支部研究発表会発表概要集. 587-588 (2001)

毛明杰：《PC楼板冲剪强度计算公式的实验研究》第53届日本土木工程学会中国分会研究报告摘要集587-588（2001）。

FUJIOKA Y, MATSUO E, HAMADA S: "Member Safety Coefficient of the Punching Shear Strength of RC Slabs"The Proceeding of the 56th Japan Society of Civil Engineers Annual Meeting CS Session. 382-383 (2001)

FUJIOKA Y，MATSUO E，HAMADA S：“RC板冲切强度的会员安全系数”第56届日本土木工程师学会年会CS会议论文集。

大田孝二: "鋼橋床版の性能照査型設計法とその課題"第一回鋼橋床版シンポジウム講演論文集. 89-94 (1998)

Koji Ota：“基于性能的钢桥面板设计方法及其问题”第一届钢桥面板研讨会论文集89-94（1998）。