型钢混凝土综合热力管廊力学性能有限元分析

Finite element analysis of mechanical properties ofsteel reinforced concrete composite thermal pipe gallery

部分项目热力管道管径较大且多条并行,管廊结构若采用常规钢筋混凝土形式,管廊壁较厚且施工难度很大。为提升热力综合管廊的承载能力,提出型钢混凝土结构的热力综合管廊,利用ABAQUS有限元软件研究了型钢混凝土增强热力管廊在受侧压力下的破坏过程和破坏形态,揭示了型钢增强热力管廊的机理。结果表明,使用型钢可以大幅增强热力管廊的承载力,在相同荷载下裂缝开展更缓慢,变形也得到较好抑制。

In some projects,the thermal pipeline has a large diameter and a large number of pieces,and the conventional reinforced concrete form is adopted,the wall thickness of the pipe gallery is thicker and the construction is more difficult.The steel reinforced concrete thermal pipe gallery can solve this problem very well.In order to improve the bearing capacity of the thermal integrated pipe gallery,this paper proposes the thermal integrated pipe gallery of steel reinforced concrete structure.The failure process and failure pattern of the thermal integrated pipe gallery reinforced by steel reinforced concrete under the pressure measurement are studied by using ABAQUS finite element software,and the mechanism of the thermal integrated pipe gallery reinforced by steel sections is revealed.The results show that the use of section steel can greatly enhance the bearing capacity of the thermal pipe gallery,and the crack development is slower under the same load,and the deformation is also well restrained.