Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lofting method for vertical curve line shape of steel truss girder bridge
The invention relates to a lofting method for a vertical curve line shape of a steel truss girder bridge. Specifically, a triangle is made based on the length of a lower chord and the length of an adjacent web part; respectively taking two vertexes of the triangle as references; respectively making circles by taking the web parts and the corresponding upper chord length and lower chord length as radiuses, taking the intersection point of the two circles as the vertex of the next triangle, respectively making circles by taking the web parts and the corresponding upper chord length and lower chord length as radiuses on the basis of the new vertex to obtain the vertex of the next triangle, and so on until the complete line shape of the upper chord and the lower chord of the steel truss girderis obtained. The method is easy to operate, accurate in lofting and high in efficiency, information given in a design drawing can be well utilized, other redundant data are not needed, the lofting linear precision is high, the lofting effect is good, and reference can be provided for meeting various steel truss girder linear lofting requirements and steel truss arch bridge linear lofting.
本发明涉及一种钢桁梁桥竖曲线线形放样方法，具体是利用下弦长度和与其相邻的腹杆长度为基础作三角形，然后分别以三角形两顶点为基准，以腹杆及相应上、下弦长度为半径分别作圆且两圆交点即为下一个三角形顶点，再以新的顶点为基础，以腹杆及相应上下弦长度为半径分别作圆，得到下一个三角形顶点，以此类推，直至得出钢桁梁上下弦完整线形。本发明操作简单，放样精确且效率高，能很好的利用设计图中所给的信息，不需要其他多余资料，放样的线形精度高，放样效果良好，不仅能为满足各种钢桁梁线形放样，也可为其钢桁拱桥线形放样提供参考。
Lofting method for vertical curve line shape of steel truss girder bridge
The invention relates to a lofting method for a vertical curve line shape of a steel truss girder bridge. Specifically, a triangle is made based on the length of a lower chord and the length of an adjacent web part; respectively taking two vertexes of the triangle as references; respectively making circles by taking the web parts and the corresponding upper chord length and lower chord length as radiuses, taking the intersection point of the two circles as the vertex of the next triangle, respectively making circles by taking the web parts and the corresponding upper chord length and lower chord length as radiuses on the basis of the new vertex to obtain the vertex of the next triangle, and so on until the complete line shape of the upper chord and the lower chord of the steel truss girderis obtained. The method is easy to operate, accurate in lofting and high in efficiency, information given in a design drawing can be well utilized, other redundant data are not needed, the lofting linear precision is high, the lofting effect is good, and reference can be provided for meeting various steel truss girder linear lofting requirements and steel truss arch bridge linear lofting.
本发明涉及一种钢桁梁桥竖曲线线形放样方法，具体是利用下弦长度和与其相邻的腹杆长度为基础作三角形，然后分别以三角形两顶点为基准，以腹杆及相应上、下弦长度为半径分别作圆且两圆交点即为下一个三角形顶点，再以新的顶点为基础，以腹杆及相应上下弦长度为半径分别作圆，得到下一个三角形顶点，以此类推，直至得出钢桁梁上下弦完整线形。本发明操作简单，放样精确且效率高，能很好的利用设计图中所给的信息，不需要其他多余资料，放样的线形精度高，放样效果良好，不仅能为满足各种钢桁梁线形放样，也可为其钢桁拱桥线形放样提供参考。
Lofting method for vertical curve line shape of steel truss girder bridge
一种钢桁梁桥竖曲线线形放样方法
LIU ZHIGUO (Autor:in) / MEI HONGFEI (Autor:in) / LI JUNPING (Autor:in) / ZHANG PENG (Autor:in) / LU YURONG (Autor:in) / JU CHUANG (Autor:in)
14.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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