桥梁结构不同于其它建筑结构,它有其特殊性,必须开发专用的桥梁结构分析软件。目前,被较多设计院运用的桥梁计算程序QJX便是在一批桥梁及软件专家的共同努力下,于七十年代后期开发成功的。继QJX之后,不少院校也先后开发了桥梁分析软件。这些软件各具特点,发挥了良好的社会经济效益。但随着视窗操作系统的普及和微机计算速度的不断攀升以及弯、坡、斜桥的不断建设,这些软件的不足便越来越明显。另外,由于我国城市机动车辆的高速增长,建设部制定了新的《城市桥 Bridge structure is different from other building structures, it has its particularity, we must develop a dedicated bridge structural analysis software. At present, the bridge calculation program QJX used by more design institutes was successfully developed in the late seventies with the joint efforts of a group of bridges and software experts. Following QJX, many colleges and universities have also developed a bridge analysis software. These software have their own characteristics, played a good social and economic benefits. However, with the popularization of Windows operating system and the ever-increasing computing speed of computers, as well as the continuous construction of bends, slopes and inclined bridges, the shortage of these softwares becomes more and more obvious. In addition, due to the rapid growth of urban motor vehicles in China, the Ministry of Construction has formulated a new "City Bridge