【作者】 张杰；

【导师】 姚谦峰； 陈平； 赵冬；

【作者基本信息】 西安建筑科技大学 ， 结构工程， 2004， 硕士

【摘要】 改革开放以来，我国住宅建设发展迅猛。密肋壁板结构体系作为一种新型节能住宅结构体系，有着很好的发展前景，并在前期的研究工作中取得了许多卓有成效的成果。然而，在新结构体系的不断发展过程中，许多内容亟待完善。本文是在对试验和已有资料进行分析的基础上，就密肋复合墙板的受力性能及斜截面承载能力实用设计方法进行了研究，完成了如下工作： 1．通过对9块1／2比例墙板模型在竖向荷载作用下的受力性能试验，分析了墙板在竖向荷载作用下受力和变形之间的关系，得到了墙体轴心受压时的高厚比限值。 2．通过对墙板模型的抗震性能试验研究，建立了由钢筋混凝土框格、砌块以及两者协同作用三个部分组成的承载力极限状态下的理论简化计算模型；提出了墙板中填充块等效斜压杆宽度按45度计算的统一量化标准；分析了影响墙板承载力的主要影响因素，给出了表达墙板框格层数和跨数不同的斜截面承载力实用设计计算公式。 3．通过对1／4比例两层联肢墙片模型受力性能试验研究，模拟了密肋复合墙板在小高层结构中的破坏形态，分析了其受力机理及正截面承载力。试验研究表明：密肋复合墙片在正截面抗弯时截面应力分布不符合平截面假定，整体倾覆力矩主要由两端隐形框架柱内力形成的力偶承担。 4．在试验研究的基础上，提出了密肋复合墙板实用设计的钢架斜压杆模型；通过线弹性有限元分析，就其优化设计进行了探讨。更多还原

【Abstract】 Since the reform and opening, residence construction has been speedily developed. Multi-ribbed Slab Structure, as a new structural system, is very potential. Previous study is much fruitful. However, there is still a lot to be advanced. The paper, based on test and other available material, mainly studied on mechanical property and oblique section bearing capacity of the composite slab.1. Based on tests of nine 1/2-scaled model slabs under vertical loads, the paper analyzed load-deformation curve and proposed limit value of height-width ratio under axial loads.2. Based on aseismic tests, the paper put forward a model of concrete frame, silica brick and a combination of the two, proposed that the silica brick works as a 45 compression bar, analyzed the factors which may influence bearing capacity of the slab and advised a formula including the numbers of bays and of storeys of the frame.3. Through test of 1/4-scaled two-storeyed model, the failure mode of multi-ribbed slab in high-rising building was simulated. The paper analyzed the slab’s mechanical performance and normal section bearing capacity. The analysis showed the strain of section is not plain under moment so that the moment is carried by force couple in the outer frame.4. The paper gave the rigid frame-compression bar model for practical computation. By means of linear FEM analysis, the paper discussed optimal design of the slab.更多还原