摘 要
本设计名称为荣资商城2号楼, 位于包头市钢铁大街北，结构类型主体选用六层框架结构,总建筑面积为5042.52㎡，一层层高5.4m，二层层高4.5m，三～六层层高为3.3m，一～二层为商场，三～六层为办公楼.室内外高差450mm，建筑物总高度24m。
根据房屋设防烈度、结构类型和房屋高度，该六层框架结构确定为抗震烈度为八度，抗震等级为二级，设计使用年限50年，建筑防火等级为二级，建筑耐火等级为二级，耐久年限为二级，安全等级为二级，结构的重要性系数取1.0。
在进行框架结构设计时，进行层间荷载代表值的计算，用顶点位移法求出自震周期，按底部剪力法计算水平地震荷载作用下的内力，用弯矩分配法计算竖向荷载作用下的结构内力，并通过内力组合找出最不利内力组合，进行框架柱、框架梁的截面、配筋设计。还计算了次梁、楼梯的荷载，进一步进行了截面、配筋的计算, 并进行了柱下独立基础的计算.
关键词 工程概况 计算条件 框架结构
Abstract
The name of the design of the second building of a Rongzi mall , Baotou Iron and Steel located in the North Main Street , Structure type selection based on six main frame, a total construction area of 5042.52 ㎡, a high-level 5.4 m, Two layers of 4.5 m high, three~six layers of 3.3 m high, one and two layers shopping center, Three-six layers office building, Indoor and outdoor 450 mm height difference , Building height 24 m .
According to the Housing defensive intensity, structure type and height of housing, The six-storey frame structure as seismic intensity to eight degrees, Seismic levels for the two, design life of 50 years, the construction of two fire grading, construction of two fire resistance rating, durable for two years, the safety level for two, the importance of structure coefficient 1.0.
Frame structure during the design, layer representative value of the load, with peak demand from the displacement method earthquake cycle, at the bottom of shear horizontal seismic load calculation under stress, Moment distribution calculated vertical load structure under the internal forces, and through internal forces to find the best combination of adverse internal force composition, for columns, beams framework of the section, the design of reinforcement. Also calculated the second beam, staircases of the load, a further section, the reinforcement, and calculate the column under an independent basis of calculation
Keywords
Project Overview Calculation conditions Frame Structure
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