ios开发转行做什么:英语高手请进! 30 钢结构二阶分析法内容

来源:百度文库 编辑:高校问答 时间:2024/05/01 04:44:29
SECOND-ORDER ANALYSIS OF STENDER STEEL FRAMES FRAMES UNDER DISTRIRBUTED AXIAL AND MEMBER LOADS

ABSTRACT: In certain types of steel framed structures members can be subjected to significant distributed axial as well as lateral loads along their lengths .The behavior of the member is complicated by the nonlinear interaction between the member force and the member stiffness. The conventional assumption of lumping loads to the member ends can lead to inaccurate results .This paper addresses the second-order analysis of frames with members subjected to gravitational axial loads. The error associated with lumping of distributed loads at the members ends is shown to be nontrivial in certain cases. In most design codes axial loads are assumed to be nodal and do not vary along the member length. Also, the result of previous studies on second- order frame analysis ignores this influence and, therefore, their solutions are only approximate and may he incorrect. The derived element improves the accuracy and widens the scope of application for a computer program based on the concept of "second-order analysis," the "advanced analysis," and the proposed "integrated analysis and design approach," which carries out an analysis simultaneously with design meeting the design code requirements. This proposed approach differs from other available methods for advanced analysis in its simplicity and capability of meeting the current and the widely used design code philosophy based on the first- plastic-hinge concept.

细钢框架构件轴向式分布负载的二阶分析
摘要:某些钢框架构件能承受显著的分布式轴向及侧面负载。构件的行为因构件力和构件硬度之间的非线性相互作用而复杂化。构件末端集中式负载的传统假设可能导致不准确的结果。本文叙述承受重力轴向负载的构件框架的二阶分析。伴随着构件末端的超量集中式负载的误差在某些情况下是不寻常的。多数设计规范中轴向负载假设是连接在一起的并且不随构件长度而变化。二阶框架分析早期研究的结果忽视了这种影响,因此他们的解法只是近似的甚至是错误的。衍生的元件提高了精确度和扩展了基于"二阶分析"、"高等分析、和建议的"综合分析设计研究"的概念的计算机分析的应用范围,同时也符合设计规范的需要。提议的步骤不同于其他有效的高等分析法,它比较简单,而且和目前广泛使用的基于第一塑性铰原则设计规范哲学协调的能力。

第二,分析diedistrirbuted钢框架下,各实验负荷 :抽象的钢框架结构,某些成员可能受到重大实验以及横向载荷分布沿其长度. 各成员的行为是复杂的非线性相互作用,各部队成员所在. 把传统负荷的成员担任结束结果可能导致错误. 本文针对第二框分析,受重力实验负荷成员. 误差与未分配负荷的目的是表明成员国在某些情况下是nontrivial. 大部分代码设计负荷实验假设是在中央政府和各成员不长. 此外,由于以往的研究第二,这会影响范围的分析,因此,他们是唯一的解决办法,可他大概是不正确的. 衍生因素好转的准确性和扩大适用范围的计算机程序基础上的"第二秩序分析"、"先进的分析",提出了"综合分析与设计方法"进行了分析,同时设计满足设计准则的要求. 这一提议得到其他不同方式方法和先进的分析能力,满足了简单和目前广泛使用的设计理念基于代码第一塑料关键概念.