CAJ | 학술논문

为研究混凝土T梁桥横隔板合理的厚度和高度,建立了56组混凝土简支T梁ANSYS有限元数值模型,对每组模型进行了施加中载和边载的受力性能分析.分析结果表明,当横隔板高度在肋板高度的54%～81%之间,且横隔板厚度不超过20 cm时,主梁跨中挠度、主梁跨中钢筋最大纵向拉应力以及中横隔板跨中板底钢筋横向拉应力均达到了较为适宜的值.因此,横隔板高度的合理值应在肋板高度的54%～81%之间,厚度合理值应在12 cm～20 cm之间,在以上范围内,具体取值应根据工程实际情况而定.
위연구혼응토T량교횡격판합리적후도화고도,건립료56조혼응토간지T량ANSYS유한원수치모형,대매조모형진행료시가중재화변재적수력성능분석.분석결과표명,당횡격판고도재륵판고도적54%～81%지간,차횡격판후도불초과20 cm시,주량과중뇨도、주량과중강근최대종향랍응력이급중횡격판과중판저강근횡향랍응력균체도료교위괄의적치.인차,횡격판고도적합리치응재륵판고도적54%～81%지간,후도합리치응재12 cm～20 cm지간,재이상범위내,구체취치응근거공정실제정황이정.
In order to study the reasonable diaphragm height and thickness of concrete T girder bridge, 56 group ANSYS finite element models of concrete simply supported girders were built, stress performance of models have been analyzed under the centre load and side load. The analysis result indicates that some aspects of girders and diaphragms stress performance achieved suitable values when the diaphragm height within limits of 54% ～ 81% of the girder rib height and the thickness of diaphragm is less than 20 cm. these aspects in-clude : the mid span deflection of girders, the maximum longitudinal tensile stress of reinforcements in the mid span, and the transverse tensile stress of reinforcements at the bottom of intermediate diaphragm central posi-tion. Therefore, the reasonable values of diaphragm height should be taken during 54% ～ 81% of girder rib height, and the reasonable values of diaphragm thickness should be taken during 12 cm-20 cm, specific val-ues should be taken according to the practice of engineering during these ranges.