经过多个版本的更迭，本月18号SAP2000终于更新到了v19的版本，从官网网页上的宣传来看，这次的更多的是向Perform3D靠拢，似乎官方已经不怎么在意Perform3D的死活了，至今Perform3D仍然停留在v5.0.1的版本。根据CSI的官方页面，这次SAP2000 v19支持了多种滞回模型并且还能够显示能量曲线：

从官方的发布文档可以看出，SAP2000确实想要更多的包括Perform3D的功能：

(1) Isotropic model, which dissipates the most energy; this was previously available only for frame hinges.

(2) Kinematic model, typically suitable for metals; this was previously available.

(3) Takeda model for simple degradation; this was previously available.

(4) Pivot model, typically for reinforced concrete; this was previously available for hinges and links but not materials; the reloading behavior has been slightly modified so as to load from the pivot point to the backbone curve along the secant line, rather than along the backbone curve as done previously.

(5) Concrete model, representing compression and tension behavior differently; this is new and similar to the model in Perform-3D; it can also be used in reverse to represent tension-only behavior.

(6) Degrading model, capturing energy and stiffness degradation with kinematic behavior; this is new and similar to the model in Perform-3D.

(7) BRB Hardening model, for representing buckling-restrained braces; this is new and similar to the model in Perform3D. The behavior of the existing models has been improved for the cyclic behavior during strength loss.

下面就开始安装SAP2000v19，直接打开压缩包，双击安装就可以看到最新的SAP2000v19的页面：

SAP2000v19安装使用

然后填写信息，选择文件夹等等，一直到下面这一步：

SAP2000v19安装使用

这一步表示在安装的过程中生成本地化图片用于提高启动和加载速度，似乎是一个新功能，但是要注意黑体字“需要花费很长时间”。这个功能按照官方的说法是avoid the just-in-time (JIT) compile time，但是官方表示： Systems with later versions of Windows (8.1 and 10) tend to be less affected, and systems that are current with Windows Updates are also less affected. 也就是windows 10可以不用这个选项，但是本着折腾的原则就直接默认了，然后就是下面的情况了：

SAP2000v19安装使用

各种找不到，接近等了好几个小时，最后关闭了这个框，然后安装就被撤销了。所以在此不建议大家在windows8或者windows10上面选择这个选项，完全多此一举。这里我进行了第二次安装，取消了Perform native image generation这个选项，直接安装成功。

然后就是汉化了，汉化还是用的之前的文件，这里在此提供下载地址：点击下载。下载完成之后，解压，复制到安装目录下，启动软件，直接“Ctrl+L”启用中文界面：

SAP2000v19安装使用

最后说一下，没有中国规范的证书，用作设计和校核的就别折腾了。不过新提供的滞回模型和能量曲线对于科研来说还是有很大帮助的，尤其是专注于设计方法的研究人员。