行业组件数据 · 2026

腹板

The vertical central web plate in an I-beam that connects the flanges and provides shear resistance.

技术定义与适配语境
典型 腹板 会按材料、尺寸公差、适配关系和失效风险在 基础金属制造 中评估。

The web is the central vertical plate element of a structural steel I-beam that connects the top and bottom flanges. It primarily resists shear forces and contributes to the beam's overall bending stiffness. The web's height-to-thickness ratio is critical for preventing buckling under load, and it often contains stiffeners or holes for utilities in construction applications.

组件规格

定义
The web is the central vertical plate element of a structural steel I-beam that connects the top and bottom flanges. It primarily resists shear forces and contributes to the beam's overall bending stiffness. The web's height-to-thickness ratio is critical for preventing buckling under load, and it often contains stiffeners or holes for utilities in construction applications.
工作原理
The web functions as the shear-resisting element in an I-beam, transferring vertical loads between the flanges while maintaining the beam's geometric integrity. It works in conjunction with the flanges to create an efficient load-bearing structure where the web handles shear stress and the flanges handle bending moments.
材料
Typically ASTM A36A572 Grade 50or similar structural steel with yield strength ranging from 36000 to 50000 psi. Material thickness varies from 1/4 inch to over 1 inch depending on beam size and load requirements.
web height
Varies by beam size (typically 4-36 inches)
web thickness
0.25-1.25 inches
shear capacity
Calculated based on web area and material properties
yield strength
36,000-50,000 psi
标准
ASTM A6AISC 360EN 10025

行业分类与别名

腹板 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Inadequate web thickness for applied loads->Web buckling or shear failure->Proper sizing per AISC specifications, adding stiffeners, using higher strength steel
Poor welding at web-to-flange connections->Crack propagation and structural failure->Qualified welding procedures, proper inspection, stress relief treatments

工业生态与工程逻辑

0
Web buckling under compressive loads
1
Shear failure from excessive loading
2
Corrosion in exposed environments
3
Fatigue cracking at connection points

合规与检测

tolerance
±1/8 inch for web height, ±0.010 inch for thickness per ASTM A6
test method
Ultrasonic testing for thickness verification, visual inspection for straightness, material certification for properties

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来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the primary function of the web in an I-beam?

The web primarily resists shear forces and connects the top and bottom flanges, transferring loads between them while preventing buckling through its vertical plate structure.

How is web thickness determined in I-beam design?

Web thickness is determined by required shear capacity, buckling resistance, and connection requirements, following AISC specifications and considering load factors, beam span, and material properties.

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CNFX Industrial Component Index · 基础金属制造

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初步技术归类
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URN:CNFX:ME:UNIT:WEB