🏗️ 结构工程工具🏗️ Structural Engineering Tools

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🏗️ 结构工程工具🏗️ Structural Engineering Tools

共 26个免费在线工具

圆截面惯性矩计算器Moment of Inertia Circle圆截面惯性矩计算器：输入圆截面直径 d，按 I = πd⁴/64 求绕中性轴的截面惯性矩，用于圆轴弯曲与稳定性计算。Moment of inertia of a solid circular section, I = πd⁴/64 about the neutral axis 矩形截面惯性矩计算器Moment of Inertia Rect惯性矩（I = b·h³ / 12）Rectangular section moment of inertia: I = b·h³ / 12 圆截面抗弯截面模量计算器Section Modulus Circle圆截面抗弯模量计算器：输入圆截面直径 d，按 S = πd³/32 求抗弯截面模量，用于圆轴弯曲应力校核。Circular section modulus S = πd³/32 from diameter, for bending stress checks 悬臂梁端点载荷挠度计算器Deflection Cantilever Point输入端点力 F、梁长 L、弹性模量 E 与圆截面直径 d，按 δ=FL³/(3EI) 求悬臂梁端点挠度。Cantilever tip deflection δ = FL³/(3EI) under an end point load 冯·米塞斯等效应力计算器Von Mises 2d输入平面应力 σx、σy 与剪应力 τ，按等效应力公式求冯·米塞斯应力，用于构件强度校核。Von Mises equivalent stress from a plane stress state 矩形截面梁剪应力计算器Beam Shear Stress最大剪应力（τ_max = 1.5·V / A）Beam Shear Stress 简支梁集中力挠度计算器Ss Point Deflection跨中挠度（δ = P·L³ / (48·E·I)）Mid-span deflection of a simply supported beam under a point load, δ = PL³/(48EI) 薄壁圆筒纵向应力计算器Longitudinal Stress输入薄壁圆筒内压 p、半径 r 与壁厚 t，按 σ_l=p·r/(2t) 计算纵向应力，用于封闭承压容器在内部压力下的轴向强度校核，数值恰为环向应力的一半。Longitudinal stress in a thin-walled cylinder: σ_l = p·r / (2t) 轴向应变计算器Axial Strain输入杆件受力后的伸长量 ΔL 与原始长度 L，计算轴向线应变 ε=ΔL/L，衡量材料在拉压下的相对变形大小，结果无量纲，常用于材料力学变形分析。Axial Strain 截面回转半径计算器Radius of Gyration回转半径（r = √(I / A)）Compute the radius of gyration from moment of inertia and cross section area 矩形截面模量计算器Section Modulus Rect截面模量（W = b·h² / 6）Width b and height h give W=b·h²/6, so bending stress σ=M/W can be checked quickly 简支梁均布荷载弯矩计算器Ss Udl Moment最大弯矩（M_max = w·L² / 8）Maximum bending moment of a simply supported beam under UDL: M = w·L² / 8 薄壁圆筒环向应力计算器Hoop Stress输入薄壁圆筒的内压 p、半径 r 与壁厚 t，按 σ_h=p·r/t 计算环向（周向）应力，用于承压管道、容器在内部压力下的周向强度校核。Hoop stress in a thin-walled cylinder: σ_h = p·r / t 圆截面极惯性矩计算器Polar Moment Circle由直径求实心圆截面极惯性矩Polar moment of inertia of a solid circular section, J = πd⁴/32, for shaft torsion 圆轴扭转剪应力计算器Torsional Shear Shaft由扭矩与直径求轴表面剪应力Maximum torsional shear stress at a shaft surface: τ = T·r / J 圆轴扭转角计算器Angle of Twist由扭矩、长度与刚度求扭转角Angle of Twist 悬臂梁均布载荷挠度计算器Deflection Cantilever Udl由均布载荷求悬臂梁自由端挠度Cantilever tip deflection under a uniform load: δ = wL⁴ / (8EI) 悬臂梁端部弯矩计算器Cantilever End Moment端部弯矩（M = F·L）Cantilever End Moment 简支梁跨中集中力剪力计算器Beam Shear Center支座剪力（V = P / 2）Support shear of a simply supported beam under a mid-span point load 压杆欧拉临界载荷计算器Euler Buckling欧拉临界（P_cr = π²·E·I / L²）Euler critical load of a pinned column: P_cr = π²·E·I / L² 应力集中计算器Stress Concentration最大应力（σ_max = K_t · σ_nom）Peak stress at a discontinuity: σ_max = K_t · σ_nom 许用应力计算器Allowable Stress许用应力（σ_allow = σ_yield / n）Allowable Stress 实心圆截面极惯性矩计算器Torsion Polar J极惯性矩（J = π·d⁴ / 32）Polar moment of inertia of a circular section: J = π·d⁴ / 32 压杆长细比计算器Slenderness Ratio长细比（λ = L / r）Slenderness ratio λ = L/r, for column stability classification 基底平均压力计算器Bearing Pressure基底压力（p = N / A）Bearing Pressure 热应变计算器Thermal Strain由线膨胀系数与温差求热应变Thermal strain ε = α·ΔT from the expansion coefficient and temperature change
📖关于「结构工程工具」About Structural Engineering Tools▼

📝栏目简介

结构工程工具集合收录了 26 个免费在线工具，覆盖结构工程场景下的常见计算、换算与查询需求。无论你是相关领域的从业者、学生还是普通用户，都能在这里找到即用即走的实用小工具。所有工具纯前端运行，数据不上传服务器，保护隐私安全。This collection gathers 26 free online Structural Engineering tools for everyday calculations, conversions and lookups. Whether you are a professional, a student or a casual user, you will find handy tools you can use right away. Everything runs client-side — no data is uploaded.

✨核心功能与适用场景

本页收录的结构工程工具包括（部分代表工具）：Featured Structural Engineering tools on this page include:

  • 圆截面惯性矩计算器Moment of Inertia Circle
  • 矩形截面惯性矩计算器Moment of Inertia Rect
  • 悬臂梁端点载荷挠度计算器Deflection Cantilever Point
  • 冯·米塞斯等效应力计算器Von Mises 2d
  • 简支梁集中力挠度计算器Ss Point Deflection
  • 薄壁圆筒纵向应力计算器Longitudinal Stress
  • 截面回转半径计算器Radius of Gyration
  • 矩形截面模量计算器Section Modulus Rect
  • 薄壁圆筒环向应力计算器Hoop Stress
  • 圆截面极惯性矩计算器Polar Moment Circle
  • 圆轴扭转剪应力计算器Torsional Shear Shaft
  • 悬臂梁均布载荷挠度计算器Deflection Cantilever Udl
  • 悬臂梁端部弯矩计算器Cantilever End Moment
  • 压杆欧拉临界载荷计算器Euler Buckling
  • 应力集中计算器Stress Concentration
  • 实心圆截面极惯性矩计算器Torsion Polar J
  • 压杆长细比计算器Slenderness Ratio
  • 热应变计算器Thermal Strain

这些工具帮助你快速完成结构工程相关的常见任务，无需记忆复杂公式或手动换算，输入即可得结果。These tools help you complete Structural Engineering tasks quickly — no formulas to memorise and no manual conversion, just enter your values and get the result.

❓常见问题

结构工程分类下的工具需要下载或注册吗？Do Structural Engineering tools require any download or sign-up?

不需要。本页 26 个结构工程工具（如圆截面惯性矩计算器、矩形截面惯性矩计算器、悬臂梁端点载荷挠度计算器、冯·米塞斯等效应力计算器、简支梁集中力挠度计算器、薄壁圆筒纵向应力计算器）都是纯前端页面，打开网页即可使用，无需安装软件、无需注册账号；输入的数据只在你的浏览器内处理，不会上传服务器。No. The 26 Structural Engineering tools on this page (including Moment of Inertia Circle, Moment of Inertia Rect, Deflection Cantilever Point, Von Mises 2d, Ss Point Deflection, Longitudinal Stress) are pure front-end pages: just open them and start using. No software to install, no account needed, and anything you enter is processed inside your browser — never uploaded.

结构工程工具的结果能直接用于医疗、法律或财务决策吗？Can the results be used directly for medical, legal or financial decisions?

不能直接作为决策依据。本页工具多为通用计算、换算与查询，结果仅供日常参考；涉及诊断、诉讼、投资、工程验收等专业场景，请以权威标准、原始仪器读数或持证专业人士的结论为准。所有运算都在本地完成，数据不上传。No — treat them as everyday references only. Most tools here are general-purpose calculators, converters and lookups; for diagnosis, litigation, investment or engineering acceptance, rely on authoritative standards, raw instrument readings or a licensed professional. Everything is computed locally and nothing is uploaded.