框架结构填充墙体材料的合理选取

Reasonable selection of filled wall material of frame structure economical analysis of materials

框架结构具有建筑平面布置灵活的特点,在高度不大的建筑中是一种较好的结构体系,同时也是目前使用的结构体系中最为常用的一种形式。在目前的情况下,框架结构建造高度不宜太高,以10层以下为宜。为研究不同的填充墙体材料对框架经济性能的影响,作者首先建立了目前常用的四种墙体材料下2层、4层、6层、8层、10层五种情况的框架结构模型,使用多级优化设计程序(MLOD)进行构件截面以及混凝土强度等级的优化,在所得到的优化模型的基础上进行钢筋、混凝土和模板费用的计算和统计,并在最终的经济分析中纳入四种墙体材料的建造费用,以得到最完整的造价分析资料。根据最终的建造费用得出了合理选取框架结构填充墙体材料的方法,为实际工程节省造价选择合理的填充墙体材料,提供了合理可行的建议和参考。

With flexible layout, frame structure is the better one among all the systems when the sturctures are not very high. Framework layer should below 10 in China. Nowadays frmae structure is still commonly used for residences and plants. In order to find out the influence on expenses resulted from different kinds of wall materials, establishing structure models of five kinds of stories and of four wall materials as well, the writer uses MLOD to optimize the sections sizes and concrete level. The four wall materials referred here are sintering hollow brick, small hollow block, aerated concrete block and glass fiber reinforced cement hollow wall. After optimizing, the program calculates all the expenses of steel, concrete and stencil. The expenses of four wall materials are also involved in the final analysis. One set frame is extracted to compare the four wall materials with the final construction cost. The final results show that glass fiber reinforced cement hollow wall is most economical. But most wall materials used today are aerated concrete blocks. The result shows they are the third kind among all the four wall materials according to the construction cost. And this result will lead to change on choosing wall materials while designing and building structures.