河南城建学院学报
河南城建學院學報
하남성건학원학보
JOURNAL OF PINGDINGSHAN INSTITUTE OF TECHNOLOGY
2014年
3期
5-8,49
,共5页
黄奶清%李亚平%程利鹏%孙刚%汪遵彪
黃奶清%李亞平%程利鵬%孫剛%汪遵彪
황내청%리아평%정리붕%손강%왕준표
悬索桥%重力式%锚碇%稳定性%数值分析
懸索橋%重力式%錨碇%穩定性%數值分析
현색교%중력식%묘정%은정성%수치분석
suspension bridge%gravity%anchorage%stability%numerical simulation
锚碇是支承主缆、保证桥梁主体结构受力稳定的重要部位,为保证桥梁安全,锚碇应具有足够的稳定性和力学特性。签于锚碇在悬索桥中的重要性,以重庆长寿长江二桥北锚碇基础为例,通过验算其稳定性以及利用Abaqus3 D进行数值模拟,分析锚碇各施工阶段下的应力状态。结果表明锚碇基础稳定性和压应力满足要求,局部地方出现应力集中和拉应力,应对其进行设计优化处理。锚碇基础的验算和分析结果为重力式混凝土锚碇的合理设计和施工提供有益的参考依据。
錨碇是支承主纜、保證橋樑主體結構受力穩定的重要部位,為保證橋樑安全,錨碇應具有足夠的穩定性和力學特性。籤于錨碇在懸索橋中的重要性,以重慶長壽長江二橋北錨碇基礎為例,通過驗算其穩定性以及利用Abaqus3 D進行數值模擬,分析錨碇各施工階段下的應力狀態。結果錶明錨碇基礎穩定性和壓應力滿足要求,跼部地方齣現應力集中和拉應力,應對其進行設計優化處理。錨碇基礎的驗算和分析結果為重力式混凝土錨碇的閤理設計和施工提供有益的參攷依據。
묘정시지승주람、보증교량주체결구수력은정적중요부위,위보증교량안전,묘정응구유족구적은정성화역학특성。첨우묘정재현색교중적중요성,이중경장수장강이교북묘정기출위례,통과험산기은정성이급이용Abaqus3 D진행수치모의,분석묘정각시공계단하적응력상태。결과표명묘정기출은정성화압응력만족요구,국부지방출현응력집중화랍응력,응대기진행설계우화처리。묘정기출적험산화분석결과위중력식혼응토묘정적합리설계화시공제공유익적삼고의거。
The anchorage is the essential part of supporting the main cable to ensure the stability of the whole structure of the main bridge. In order to ensure the safety of bridges, anchor should have enough stability and mechanical properties. In view of the importance to anchor in suspension bridge, this paper analyze the an-chorage stress state of each construction stage based on the North Anchorage of the Second Bridge of Chang-shou Yangtze River in Chongqing and through the calculation of its stability and numerical simulation by using Abaqus3D. Examples show that the anchorage stability and compressive stress meet the requirements, but the locals appear stress concentration and stress, which should carry out the design optimization. The calculation and analysis of the anchor provides useful reference for reasonable design and construction for anchorage with gravity concrete.