摘要
研究预应力混凝土分体式箱梁桥荷载横向分布系数的设计计算方法,对分体箱梁桥在活载作用下跨中主梁内力的横向分布进行有限元分析,通过与规范中查表法求出的结果相比较,提出2种算法的优缺点以及在实际工程中的应用价值。
parative prestressed box-girder has good appearance and excellent bending capability and torsional capability,it can also use high strength materials effectively. So they are used in many bridges. The researching of the method of calculating coefficients of transverse distribution of load to boxgirder is important in bridge designing. The dissertation mainly analyzes the distribution of live load among the girders in the mid span. Comparing the result of the finite element method with that of manual method, the conclusion is advantages and disadvantages of the two methods, and their application value.
出处
《交通科技》
2006年第1期4-6,共3页
Transportation Science & Technology
关键词
分体式箱梁桥
抗扭惯性矩
横向分布系数
separative box-girder bridge
torsional moment inertia
coefficients of transverse distribution
