双梁双门轮胎式提梁机两侧大车不同步工况的结构设计计算与分析  

Calculation and Analysis of Structural Design of Two-girder Two-gantry Tyre Girder Crane with Asynchronous Working Conditions of Carriers on Both Sides

作　　者：黄耀怡 Huang Yaoyi

机构地区：[1]秦皇岛天业通联重工科技有限公司 [2]中铁第五勘察设计院集团有限公司,102600

出　　处：《工程机械》2025年第1期71-79,I0010,共10页Construction Machinery and Equipment

摘　　要：为验证TLMEL 900 t型双梁双门轮胎式提梁机门架结构的整体刚度及分体强度,基于两侧大车不同步工况,开展门架结构设计计算和分析。建立计算模型,分别采用弯矩分配法、力法及有限元方法求解6次超静定结构,验算提梁机空间门架顶面刚架结构在大车不同步作用下所产生的斜弯曲应力,以及构件接头法兰螺栓群的抗扭剪强度,提出轮胎式提梁机刚性同步的概念和设计计算方法。以提梁机纵行工况为主线,对横行工况做结构安全性论证。计算分析结果表明,该提梁机在整个施工过程,无论纵行、横行转弯转向等作业,其总体结构均安全可靠。To verify the overall stiffness and split strength of the gantry structure of the TLMEL 900 t two-girder two-gantry tyre girder crane,based on asynchronous working conditions of carriers on both sides,calculation and analysis of the gantry structural design are carried out.A calculation model is established,the moment distribution method,force method and finite element method are adopted respectively to solve the six times statically indeterminate structure and calculate the oblique bending stress generated by the rigid frame structure on the top surface of the girder crane space gantry under the asynchronous action of the carriers and the torsional shear strength of the flange bolt group of the component joints,and the concept and design calculation method of rigid synchronization for tyre girder crane are proposed.With longitudinal travelling conditions of the girder crane as the main line,the structural safety under traversing conditions is demonstrated.The calculation analysis results show that,the overall structure of the girder crane is safe and reliable throughout the construction process,regardless of longitudinal travelling,traversing,turning or other operations.

关 键 词：提梁机 两侧大车不同步工况 6次超静定结构 斜弯曲应力 法兰螺栓群扭剪强度 刚性同步 纵行 横行 

分 类 号：U445.32[建筑科学—桥梁与隧道工程]