论文部分内容阅读
引言 現行桥涵設計規范(以下称《桥規》)規定,在設计鋼桁梁的纵向联結系时,得考虑联結系与弦杆共同受力的影响。对于我国目前标准設計所采用的交叉形纵向联結系,考虑共同工作影响时,竪向荷載在各有关杆件內所产生的內力,按《桥規》110及115条,分別为: 斜撑內力当横撑为横梁时,容许视F_p=∞,即
Introduction The current code for design of bridges and culverts (hereinafter referred to as “bridge gauge”) stipulates that when designing the longitudinal coupling system of steel trussed girders, the joint force of the joint and chord shall be considered. For the cross-shaped longitudinal coupling system adopted by China’s current standard design, the internal forces generated by the vertical load in all the relevant rods are taken into account according to the “bridge gauge” 110 and 115 respectively when considering the influence of joint work: Internal forces when the cross-beam as a beam, allowing F_p = ∞, that is