7.1. Overall Structural Behavior of VS 7.2. Shear Wall Subsystem 7.3. Shaft (Tube) Subsystem 7.4. Rigid Frame Subsystem

3.1 Building Systems 3.2 The Hierarchy of Structural Action 3.3 Building Forms Conceived as Solid Structures 3.4 Building Forms Conceived as Space Structures

上海交通大学：《结构概念设计 Conceptual design》教学资源_Chapter 2 Schematic Building Forms as Total Structural System 2.1 The Assumption of Integrity

3.1 Building Systems 3.2 The Hierarchy of Structural Action 3.3 Building Forms Conceived as Solid Structures 3.4 Building Forms Conceived as Space Structures

2.1 The Assumption of Integrity

Design Patterns  Why, What, How  Creational, Structural and Behavioral Patterns

Based on the measured activities, the phase diagrams and the annexation principle, the calculating models of mass action concentrations for Ag-Bi and Ag-Bi-In melts have been formulated. The calculated results agree with practice and obey the mass action law, showing that the models formulated can reflect the structural characteristics of both melts. Meanwhile, it confirms that annexation principle is applicable to the Ag-Bi-In metallic melts. The melts involving eutectic which give rise to phase separation, and in which activities exhibit positive deviation from Raoult's law is the basic cause of melts transforming from homogeneous to heterogeneous ones

Being aimed to developing intermetallic base structural materials to be worked at above 1000℃, a systematic investigation has been performed of the fundamental crystallographic structure, phase constitution map, density-composition dependence, oxidation resistance and general mechanical behaviour for the ternary intermetallic alloys in the Nb-Ti-Al system. Promissing results have been obtained at the initial stage in the current program. The 1100℃ high temperature strength at the strain rate of 10-2/s and 10-5/s for the ternary compound NbTiAl3 （γ1） base alloys are generally much higher than that of the binary compound TiAl （γ）, especially in the γ1 + α2 phase region, it is as high as twice as that of TiAl. The densities are 4.1-4.79g/cm3, depending on relative amount of the intermetallics involved and the density difference between the intermetallics. The oxidation resistance at th

延安大学：《结构力学 Structural Mechanics》课程教学资源（手稿）第四章 静定刚架课后作业答案

延安大学：《结构力学 Structural Mechanics》课程教学资源（手稿）第二章 结构几何组成分析课后作业答案