Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mounting method for space double-curved-surface funnel-shaped single-layer latticed shell structure
The invention provides a mounting method for a space double-curved-surface funnel-shaped single-layer latticed shell structure. The mounting method comprises the steps of welding zoning dividing, characteristic positioning point selecting, welding sequence determining, space geometric coordinate determining, component machining, mounting of a latticed shell with a cylinder zone and a funnel conical zone, support dismantling and unloading and the like. The latticed shell is divided into the cylinder zone and the funnel conical zone, welding layer and welding zone dividing is conducted accordingto characteristics of the cylinder zone and the funnel conical zone, thus welding zoning is more reasonable, welding deformation is effectively reduced, full-process finite element simulation check computation is conducted, a reverse deformation measure is adopted in advance according to an analysis result, the forming precision of the latticed shell is improved, a key control joint is selected in each welding zone as a characteristic positioning point, precise positioning and fixing measures are taken in advance for the characteristic positioning points, space coordinates of the whole latticed shell are effectively controlled, telescopic joints are reserved between interfaces of all the welding zones to achieve the effect of stress partition, and by controlling allowable difference values of joint coordinates of the latticed shell, different precision requirements are met.
本发明提供了一种空间双曲面漏斗形单层网壳结构的安装方法，包括焊接分区划分、选取特征定位点、确定焊接顺序、确定空间几何坐标、加工构件、安装圆柱区和漏斗锥形区网壳和拆撑卸载等步骤。本发明将网壳分为圆柱区及漏斗锥形区，根据各自特点进行焊层、焊区划分，使焊接分区更加合理，有效减少了焊接变形，并进行全过程有限元仿真模拟验算，根据分析结果预先采取反向变形措施，提高网壳的成形精度，每个焊区内选取关键控制节点为特征定位点，对特征定位点预先采取精准定位固定措施，有效控制整个网壳的空间坐标，各焊区交界面间预留伸缩节点，起到应力隔断作用，通过控制网壳节点坐标容许差值，满足不同精度的要求。
Mounting method for space double-curved-surface funnel-shaped single-layer latticed shell structure
The invention provides a mounting method for a space double-curved-surface funnel-shaped single-layer latticed shell structure. The mounting method comprises the steps of welding zoning dividing, characteristic positioning point selecting, welding sequence determining, space geometric coordinate determining, component machining, mounting of a latticed shell with a cylinder zone and a funnel conical zone, support dismantling and unloading and the like. The latticed shell is divided into the cylinder zone and the funnel conical zone, welding layer and welding zone dividing is conducted accordingto characteristics of the cylinder zone and the funnel conical zone, thus welding zoning is more reasonable, welding deformation is effectively reduced, full-process finite element simulation check computation is conducted, a reverse deformation measure is adopted in advance according to an analysis result, the forming precision of the latticed shell is improved, a key control joint is selected in each welding zone as a characteristic positioning point, precise positioning and fixing measures are taken in advance for the characteristic positioning points, space coordinates of the whole latticed shell are effectively controlled, telescopic joints are reserved between interfaces of all the welding zones to achieve the effect of stress partition, and by controlling allowable difference values of joint coordinates of the latticed shell, different precision requirements are met.
本发明提供了一种空间双曲面漏斗形单层网壳结构的安装方法，包括焊接分区划分、选取特征定位点、确定焊接顺序、确定空间几何坐标、加工构件、安装圆柱区和漏斗锥形区网壳和拆撑卸载等步骤。本发明将网壳分为圆柱区及漏斗锥形区，根据各自特点进行焊层、焊区划分，使焊接分区更加合理，有效减少了焊接变形，并进行全过程有限元仿真模拟验算，根据分析结果预先采取反向变形措施，提高网壳的成形精度，每个焊区内选取关键控制节点为特征定位点，对特征定位点预先采取精准定位固定措施，有效控制整个网壳的空间坐标，各焊区交界面间预留伸缩节点，起到应力隔断作用，通过控制网壳节点坐标容许差值，满足不同精度的要求。
Mounting method for space double-curved-surface funnel-shaped single-layer latticed shell structure
一种空间双曲面漏斗形单层网壳结构的安装方法
HAN XIANGKE (Autor:in) / JIANG XIAOMAN (Autor:in) / LIU XINGUO (Autor:in) / WANG ZHEN (Autor:in) / FU YUANDONG (Autor:in) / ZHUANG PENGXIANG (Autor:in) / HE MING (Autor:in)
04.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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