Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
T-shaped beam internally provided with steel tube concrete stiff framework
The invention discloses a T-shaped beam internally provided with a concrete-filled steel tube stiff framework, and belongs to the technical field of bridge structures, when the T-shaped beam with the structure bears the action of upper load and self-weight load, a steel tube of the framework mainly bears axial pressure or axial tension so as to resist most bending moment; the arch-shaped or fish-bellied framework is used for bearing most bending moment, under the conditions that the external dimension and the overall construction mode are not changed and the deflection and crack limit value requirements are met, prestress is omitted, one-time pouring forming is achieved, compared with a traditional prestressed beam, the construction quality and efficiency are guaranteed more easily, downwarping deformation caused by prestress loss is avoided, and the construction efficiency is improved. The problems of subsequent maintenance and reinforcement are solved; the section of the long reinforcing steel bar filled with the inner concrete is obviously increased compared with that of the reinforcing steel bar, so that the arch-shaped framework has larger bearing capacity, and compared with direct large-section steel, the framework has the advantages that a stress bearing structure is guaranteed, meanwhile, steel materials are reduced, and the material cost, the transportation cost, the manufacturing cost and the like are reduced.
本发明公开了一种内设钢管混凝土劲性骨架的T形梁，属于桥梁结构技术领域，此结构的T形梁，当承受上部荷载及自重荷载作用时，骨架的钢管主要承担轴向压力或轴向拉力，以此抵抗大部分弯矩；本发明利用拱形或鱼腹式骨架承担大部分弯矩，在不改变外观尺寸、整体施工方式、以及满足挠度和裂缝限值要求的情况下，免除掉预应力，一次浇筑成型，相较于传统预应力梁，更容易保证施工质量和效率，且避免预应力损失造成的下挠变形，以及后续维养和加固难题；填充内混凝土的长钢筋截面相较于钢筋显著增大，使拱形骨架具有更大的承载力，相较于直接的大截面钢材，此骨架在保证承受应力结构的同时减少钢材材料，降低材料、运输、制作等成本。
T-shaped beam internally provided with steel tube concrete stiff framework
The invention discloses a T-shaped beam internally provided with a concrete-filled steel tube stiff framework, and belongs to the technical field of bridge structures, when the T-shaped beam with the structure bears the action of upper load and self-weight load, a steel tube of the framework mainly bears axial pressure or axial tension so as to resist most bending moment; the arch-shaped or fish-bellied framework is used for bearing most bending moment, under the conditions that the external dimension and the overall construction mode are not changed and the deflection and crack limit value requirements are met, prestress is omitted, one-time pouring forming is achieved, compared with a traditional prestressed beam, the construction quality and efficiency are guaranteed more easily, downwarping deformation caused by prestress loss is avoided, and the construction efficiency is improved. The problems of subsequent maintenance and reinforcement are solved; the section of the long reinforcing steel bar filled with the inner concrete is obviously increased compared with that of the reinforcing steel bar, so that the arch-shaped framework has larger bearing capacity, and compared with direct large-section steel, the framework has the advantages that a stress bearing structure is guaranteed, meanwhile, steel materials are reduced, and the material cost, the transportation cost, the manufacturing cost and the like are reduced.
本发明公开了一种内设钢管混凝土劲性骨架的T形梁，属于桥梁结构技术领域，此结构的T形梁，当承受上部荷载及自重荷载作用时，骨架的钢管主要承担轴向压力或轴向拉力，以此抵抗大部分弯矩；本发明利用拱形或鱼腹式骨架承担大部分弯矩，在不改变外观尺寸、整体施工方式、以及满足挠度和裂缝限值要求的情况下，免除掉预应力，一次浇筑成型，相较于传统预应力梁，更容易保证施工质量和效率，且避免预应力损失造成的下挠变形，以及后续维养和加固难题；填充内混凝土的长钢筋截面相较于钢筋显著增大，使拱形骨架具有更大的承载力，相较于直接的大截面钢材，此骨架在保证承受应力结构的同时减少钢材材料，降低材料、运输、制作等成本。
T-shaped beam internally provided with steel tube concrete stiff framework
一种内设钢管混凝土劲性骨架的T形梁
YANG LIGUI (Autor:in) / JIN SHUANGSHUANG (Autor:in) / WANG SHAORUI (Autor:in) / CHASSON (Autor:in) / CHEN JUNXIN (Autor:in) / LIU JIXUAN (Autor:in)
25.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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