人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
19期
29-32
,共4页
有限元%预留宽缝%闸底板%船闸闸首
有限元%預留寬縫%閘底闆%船閘閘首
유한원%예류관봉%갑저판%선갑갑수
finite element method%preserved wide construction joints%bottom floor%lock head of ship lock
规模较大的船闸闸首，若按全底板浇筑的施工方法进行施工，由于底板较厚，荷载分布不均匀等因素，在施工过程中底板易出现裂缝。结合工程实例，利用大型通用有限元软件ANSYS对某工程船闸下闸首分别按全底板施工方法和预留宽缝施工方法进行了三维仿真设计分析。结果表明，预留宽缝的施工方法可大大降低船闸闸首底板的弯矩和应力，改善闸首底板受力状态。
規模較大的船閘閘首，若按全底闆澆築的施工方法進行施工，由于底闆較厚，荷載分佈不均勻等因素，在施工過程中底闆易齣現裂縫。結閤工程實例，利用大型通用有限元軟件ANSYS對某工程船閘下閘首分彆按全底闆施工方法和預留寬縫施工方法進行瞭三維倣真設計分析。結果錶明，預留寬縫的施工方法可大大降低船閘閘首底闆的彎矩和應力，改善閘首底闆受力狀態。
규모교대적선갑갑수，약안전저판요축적시공방법진행시공，유우저판교후，하재분포불균균등인소，재시공과정중저판역출현렬봉。결합공정실례，이용대형통용유한원연건ANSYS대모공정선갑하갑수분별안전저판시공방법화예류관봉시공방법진행료삼유방진설계분석。결과표명，예류관봉적시공방법가대대강저선갑갑수저판적만구화응력，개선갑수저판수력상태。
Due to the thick bottom floor and the uneven load distribution etc. at the head of a large ship lock, cracks may oc-cur at the bottom floor if integral pouring construction is conducted for the whole bottom floor. The large general finite element software ANSYS was used to conduct 3D simulation analysis on 2 construction methods, namely integral pouring construction for whole bottom floor and bottom slab pouring with wide joints for a ship lock. The results show that the stress and moment at bottom floor of the lock head was reduced by setting up wide construction joints, and the stress state of the bottom floor was improved as well.
