混凝土砌体结构第四章。内力分析课件.pptVIP

Chapter 4Structural type and static analysis method of masonry buildings welcome to use Please preface 4.1 structural type and constitution of masonry buildings (砌体房屋结构的形式和组成) 4.2 arrangement of masonry structures (砌体结构的布置) 4.3 transmission of vertical load (竖向荷载的传递) 4.4 static calculation schemes of masonry structures and transfer of horizontal load (砌体结构的计算简图与水平荷载的传递) 4.5 calculating method of rigid scheme structures(刚性方案结构的计算) 4.6 calculating method of Elastic scheme structures （弹性方案结构的计算) 4.7 calculating method of rigid-elastic scheme structures （刚弹性方案结构的计算） 4.8 calculating method of a building with structure flexible at the upper storey and rigid at the lower storey (上柔下刚、上刚下柔多层房屋的内力计算) 4.9 calculation of internal force of basement wall (地下室墙的内力计算) 4.10 worst combination of load effect (最不利荷载效应组合) preface Characteristics of unreinforced masonry structures(无筋砌体的特性) Compressive performance is higher and tensile performance is lower. (墙体抗压性能较好，抗拉性能较差)。 preface 4.2 Arrangement of masonry structures 4.2.1 Building that load is supported by transverse wall characteristics： 1. 横墙为承重墙，间距较小（3～4.5m），结构整体性好，空间 刚 度大，有利于抵抗水平作用和调整地基的不均匀沉降。 2. 纵墙作为围护、隔断墙，其设置门窗洞口的限制较少，纵墙 立面处理比较灵活，可保证横墙的侧向稳定。 3. 楼盖的材料用量较少，但墙体的用料较多 ，施工方便。 ——适用于宿舍、住宅、旅馆等居住建筑和由小房间组成的 办公楼等。 Transmission path of the load: ↗ longitudinal wall↘ Load of floor and roof foundation→ foundation soils ↘ transverse wall↗ 4.2.4 Building with framework-supporting inside 4.2.5 Supporting system is the mixture of internal frame system and other systems (混合承重方案) Supporting system is the mixture of internal frame system and other systems (内框架承重体系与其他体系相结合就成为混合承重体系) 4.2.6 building with framework-sup