ACI 318-25 PDF下载

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Building Code Requirements for Structural Concrete ACI 318-25
美国混凝土学会混凝土结构设计与施工规范 ACI 318-25 PDF下载

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主要新增/修订内容(与 2019 版对比)

  1. 附录 A – 非线性时程分析设计验证
    首次给出用非线性响应-history 进行承载力、变形校核的统一流程与验收准则。
  2. 附录 B – 基于性能的风荷载设计(PBWD)
    引入以层间位移角、加速度为性能指标的直接风荷载设计法,可作为等效静力法的替代。
  3. 附录 C – 可持续性与韧性
    提供碳排放(GWP)计算模板、低碳胶凝材料使用指引及全寿命周期韧性评价框架。
  4. 后植钢筋(POST-INSTALLED REINFORCEMENT)
    新增发展长度、最小间距/边距、裂缝区减长系数及现场拉拔抽检要求。
  5. 抗震设计
    放松特殊结构墙抗剪苛刻条款;补充地下室墙、悬臂墙及深基础抗震剪切公式。
  6. 剪切摩擦与界面受剪
    重写粗糙界面、化学植筋界面抗剪公式,调整相应强度折减系数 φ。
  7. 锚固与搭接
    密集钢筋群受拉发展长度下调;新增劈裂破坏控制条款及高粘结涂层钢筋系数。
  8. 结构体系与构造
    明确“双重体系”判定条件;增大预制-现浇组合楼板最小厚度;补充火后修复截面分类方法。

适用范围
现浇、预制、喷射、素混凝土、普通及预应力混凝土房屋与非房屋结构;可与 IBC、ASCE/SEI 7 等通用建筑规范配套使用。

ACI 318-25 PDF下载
ACI 318-25 PDF下载
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