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钢筋混凝土框架结构设计方案构思时应考虑以下几点

发布时间:2015-9-21 9:45:05 浏览次数:506
1.结构方案还应结合工程地质情况和建筑功能要求综合考虑

2.从力学观点看,在民用和公共建筑的平面布局中,应当尽量使柱网按开间等跨和进深等距(或近似于等距)布置,这样可以相应减少边跨柱距,也可以充分利用连续梁的受力特点以减少结构中的弯距,可以使各跨梁截面趋于一致,而提高结构的整体刚度。

3.结构的传力路线应简捷明了。在荷载作用下,结构的传力路线越短、越直接,结构的工作效能越高,所耗费的建材也就越少。

4.建筑布置在抗震设计中,应提倡平面和立面简单、规则、对称的原则,合理的建筑布置是最重要的。“规则”包括了对建筑的平面和立面外形尺寸、抗侧力构件布质量分布、承载力分布等诸多因素的综合要求。建筑师需和结构师互相配合,才能设计出抗震性能良好的建筑。在做钢筋混凝土结构的抗震设计时,要注意:

(1)平面宜简单、规则、对称,减少偏心,否则应考虑其不利影响;

(2)刚度中心与质量中心尽量重合;

(3)质量大的跨间不宜布置在结构单元的边缘,质量大的设备宜布置在距刚度中心较近的部位;

(4)尽量少采用大悬挑结构;

(5)围护结构宜采用轻质材料。



1. The structure scheme should also be combined with engineering geological conditions and building functional requirements comprehensive consideration

2. From the mechanical point of view, the layout of the civilian and public buildings, should try to make the column grid by studio across and depth isometric (or similar isometric) layout, it can be compensated by a side span column space, also can make full use of the mechanical characteristics of continuous beam in order to reduce the structure of the bending distance, can lead to the agreement the beam cross section, and to enhance the overall stiffness of the structure.

3. The structure of the power transmission line should be simple and clear. Under load, the force of the structure of the shorter and more direct route, the structure of the work efficiency is higher, the less the amount of building materials also.

4. The building is decorated in the seismic design, should advocate the simple plane and building elevation, the rule, the principle of symmetry, the reasonable construction layout is one of the most important. "Rules", including the overall dimensions of building plane and building elevation, component to resist lateral force cloth quality, bearing capacity of many factors, such as comprehensive requirements. Architects and structure engineers cooperate each other, to design a good seismic performance of buildings. When doing the seismic design of reinforced concrete structures, pay attention to:

(1) the plane should be simple, rules, symmetry, reduce eccentric, otherwise its adverse effect should be considered;

(2) the stiffness center and the center of mass overlap as far as possible;

(3) the quality of large span should not be decorated at the edge of the structural unit, the quality of large equipment appropriate arrangement of parts in closer from the center of rigidity;

(4) use less as far as possible big cantilever structure.

(5) the palisade structure appropriate use of lightweight materials.



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