midas-bridge-mcp

midas-bridge-mcp

Enables Claude to directly control Midas Civil NX for bridge structural analysis, allowing users to model, apply loads, and perform analysis through natural language descriptions.

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README

Midas Bridge MCP

🌉 AI 驱动的桥梁结构分析 —— Claude 直接操控 Midas Civil NX

Python 3.11+ MCP License

这是什么

一个 Model Context Protocol (MCP) Server，连接 Claude 和 Midas Civil NX。

Claude 变成一个能直接建模、加载、分析的桥梁工程师——你用自然语言描述结构，Claude 在 Civil NX 里自动执行。

你："建一条4米箱梁，腹板开3个圆孔，Q345钢，一端铰接一端滑动，施加自重加活载"
                              ↓
           Claude + Midas Civil MCP
                              ↓
         Midas Civil NX 自动建模 → 分析 → 出计算报告

快速开始

1. 安装

git clone https://github.com/WWWeiZhang/midas-bridge-mcp.git
cd midas-bridge-mcp
pip install -e .

2. 配置

复制环境变量模板，填入你的 Midas Civil NX 连接信息：

cp .env.example .env
# 编辑 .env，填入你的 MIDAS_BASE_URL 和 MIDAS_MAPI_KEY

3. 启动

python -m midas_mcp.server

或在 Claude Code 的 .mcp.json 中配置（参考 .mcp.json.example）。

4. 在 Civil NX 中开启 API

Civil NX → Settings → MAPI-Key → 生成一个 Key，填入 .env。

能力总览

模块 支持的操作
建模 节点、梁/桁架/索/板/墙/实体/受压单元
材料 钢材(数据库+自定义)、混凝土
截面 标准型钢、矩形、变截面、钢-混组合截面
边界 支座(fix/pin/roller)、刚性连接(主从)、弹性连接(含支座弹簧)
荷载 自重、节点力/弯矩、梁均布荷载、移动荷载(CHINA/AASHTO等)
组合 荷载组合(含混凝土/钢材分类)
组 结构组、边界组、荷载组(幂等追加)
施工阶段 阶段定义、组合截面、徐变系数、时间荷载、预拱度
索 索特性、索布置、预应力张拉
分析 静力分析、特征值、屈曲、Pushover、P-Delta、非线性
结果 节点位移、支座反力、梁内力

架构

tools/    ← MCP 工具层: @mcp.tool() 包装, docstring 是 Claude 的"说明书"
domain/   ← 业务逻辑层: Python 函数把 Midas JSON 封装好
core/     ← 连接层: HTTP + MAPI-Key 鉴权

分层铁律：tools 不直接发 HTTP，domain 不知道 MCP 协议，core 不包含业务判断。

项目结构

midas-bridge-mcp/
├── src/midas_mcp/
│   ├── server.py         # MCP 入口
│   ├── core/             # HTTP 客户端 + 配置
│   ├── domain/           # 业务逻辑(15 个模块)
│   └── tools/            # MCP 工具(15 个模块, ~70 个 tool)
├── pyproject.toml
├── .env.example          # 环境变量模板
└── .mcp.json.example     # MCP 配置模板

许可

MIT

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