摘要：本设计为上海国际花园小学B单元减震加固设计，是在既有工程上采用减震加固方法进行加固，具体表现为设置减震构件，如屈曲约束支撑、阻尼等。本次设计主要依靠添加屈曲约束支撑与传统的增大截面法共同作用下实现既有工程的加固。其中，部分结构存在单跨结构已经不满足于现规范，需添加斜撑，个别梁柱通过增加截面来满足轴压比、周期比、层间位移比等要素。

本次设计主要采用屈曲约束支撑加固法，结构模型为4层框架结构，总高度15.8米。除整体指标不满足以外，梁柱轴压比和配筋也不满足，且抗震等级由三级提高到二级。由于是中小学教学楼结构，单跨框架不满足规范要求。设置屈曲约束支撑可以有效实现整体指标满足要求。68743

毕业论文关键词：减震、加固、屈曲约束支撑

Design of Reinforcement Scheme for Unit B in Shanghai International Garden Primary School

Abstract：The design of the Shanghai International Garden Primary School B unit damping reinforcement design, is in the existing project using shock reinforcement method to strengthen, specifically for the installation of shock absorbers, such as buckling constraints, damping and so on. This design mainly relies on the addition of buckling restraint support and traditional cross section method to achieve the reinforcement of existing projects. Among them, the existence of a single structure of the single-span structure is not satisfied with the current specification, need to add bracing, inpidual beams and columns by increasing the cross-section to meet the axial pressure ratio, cycle ratio, inter-layer displacement ratio and other elements.

   This design mainly uses the buckling restraint support reinforcement method, the structure model is 4 layer frame structure, the total height is 15.8 meters. In addition to the overall indicators are not satisfied, the beam and column axial compression ratio and reinforcement is not satisfied, and the earthquake level from three to two. Because it is the primary and secondary school teaching building structure, single-span frame does not meet the specification requirements. Setting the buckling constraint support can effectively achieve the overall index to meet the requirements.

Key words: shock absorption, reinforcement, buckling restraint support

目录

1 结构加固概况 1

  1.1 结构现状 1

  1.2 结构问题 2

  1.3 解决方案 2

2 结构设计信息 5

  2.1 总信息 5

  2.2 计算控制信息 6

  2.3 风荷载信息 6

  2.4 地震信息 6

  2.5 活荷载信息 7

  2.6 调整信息 8

  2.7 配筋信息 9

  2.8 设计信息 9

  2.9 荷载组合信息 10

  2.10 地下信息 11

  2.11 其他信息 11

3 周期与地震力 16

  3.1 地震周期 16

  3.2 振型 16

    3.2.1仅考虑 X 向地震作用时的地震力 16

    3.2.2仅考虑 Y 向地震作用时的地震力