Are these Steel Structures handwritten notes free?

Yes. Fill in the short form on this page and the PDF downloads right away.

Are these official university notes?

No. They are original Uncodemy revision notes written for the Steel Structures topics common to most B.Tech Civil syllabi. They are not issued or approved by any university, AKTU or otherwise.

Which syllabus do they follow?

They follow the common Indian B.Tech Civil syllabus for Steel Structures. Unit names and order vary between universities, so check your own syllabus and cover any extra topic from your textbook.

Do these notes follow IS 800:2007?

Yes. The design rules and partial safety factors are based on IS 800:2007, the limit state code. Check for the current edition before design use.

Are bolted and welded connection examples included?

Yes. The notes include a bolt value example for an M20 grade 4.6 bolt and a fillet weld strength example.

Can I request notes for another subject?

Yes. Use the handwritten notes request page to ask for a subject that is not in the notes hub yet.

Steel Structures Handwritten Notes PDF (IS 800)

Key takeaways

Seven design sections based on the limit state method of IS 800:2007.
Formulas for bolt shear, bearing and HSFG slip resistance, and fillet weld strength.
Worked examples for bolt value, weld strength, plate tension capacity and column buckling.
Tables for partial safety factors, section classes, buckling curves and effective lengths.
Original Uncodemy notes; check the current IS 800 and IS 875 before design use.

About these Steel Structures notes

Design of Steel Structures is a code-based subject where one formula often has three or four checks around it. These notes list each check and the safety factor that goes with it, so you do not mix up γm0 and γm1 in the exam.

These are original Uncodemy revision notes. They follow the topics common to most Indian B.Tech Civil syllabi for Steel Structures, written in a neat handwritten style with formulas boxed and key numbers highlighted. They are short notes for revision, not a replacement for your textbook or class notes.

What's inside the notes: unit by unit

The PDF begins with the design basis and then covers connections, members and roof systems.

Unit 1: Introduction and limit state design

Steel as a material: advantages, drawbacks, E250 properties and rolled sections.
Partial safety factors: γm0, γm1, bolts and shop and field welds, and load combinations.
Section classification: plastic, compact, semi-compact and slender sections.

Unit 2: Bolted connections

Bolt types: bearing type bolts and HSFG bolts, grades, hole size, pitch and edge distance.
Bolt strength: shear, bearing and slip resistance formulas, with a bolt value example.
Failures and prying: modes of failure of bolted joints and prying force.

Unit 3: Welded and eccentric connections

Welds: butt and fillet welds, effective throat, effective length and weld strength, with an example.
Bolted versus welded: a comparison table.
Eccentric connections: direct and torsional shear on bolt groups, and connection types by rigidity.

Unit 4: Tension members

Design strength: gross yielding, net rupture and block shear.
Net area: staggered holes, angles and shear lag, with a plate example.

Unit 5: Compression members

Buckling curves: design compressive stress, imperfection factors and a worked column example.
Effective length: K values for different end conditions and slenderness limits.
Built-up columns and bases: lacing, battens and slab base thickness.

Unit 6: Beams

Laterally supported beams: design moment, shear strength and high-shear check, with an example.
Laterally unsupported beams: lateral-torsional buckling, web checks and deflection limits.
Plate and gantry girders: components, tension field action and crane loads.

Unit 7: Plastic analysis and roof trusses

Plastic analysis: shape factor and collapse loads of fixed beams.
Roof trusses: truss types, pitch, purlins and wind load from IS 875 Part 3.

How the PDF is laid out

Each section opens with short definitions in bullet form, followed by tables that compare types, tests or methods. Formulas are written in separate boxes so they stand out when you flip through the pages, and the values that examiners ask most often are highlighted. Short tip boxes point out exam favourites and common traps. Wherever a formula is used in exams, a short solved example shows the steps with real numbers. The last page lists 10 most asked practice questions so you can test yourself after revising.

How to revise Steel Structures

Make a safety factor card. γm0 = 1.10, γm1 = 1.25 and the bolt and weld factors are asked directly and used everywhere.
Practise bolt value until it is quick. Shear in single and double shear plus bearing, then take the smaller value.
Draw the failure planes. Net section, block shear and stagger paths are easier to see on a sketch.
Learn the buckling curve steps. λ, φ and fcd in order; practise one column a day.
Revise connection and member checks together. A tension member design always ends with the connection design.

Exam focus: high-weightage topics and numericals

Steel Structures papers mostly ask for designs with code checks. Frequent topics:

Partial safety factors and section classification.
Design of bolted and welded connections.
Design strength of tension members, including block shear.
Compression members using buckling curves, and built-up columns.
Laterally supported beams and plate girder components.

Typical numericals to practise

Find the bolt value of a bearing type bolt in single and double shear.
Design a fillet-welded lap joint for a given load.
Find the design tensile strength of a plate with staggered holes.
Find the design compressive strength of a column for a given KL/r.
Design a slab base for an axially loaded column.

A one-week plan with these notes

If your Steel Structures exam is a week away, this plan covers the whole PDF once and leaves time for practice.

Day 1: Introduction and limit state design and Bolted connections. Read the section, then close the PDF and write the key formulas and tables from memory.
Day 2: Welded and eccentric connections and Tension members. Read the section, then close the PDF and write the key formulas and tables from memory.
Day 3: Compression members and Beams. Read the section, then close the PDF and write the key formulas and tables from memory.
Day 4: Plastic analysis and roof trusses. Read the section, then close the PDF and write the key formulas and tables from memory.
Day 5: redo every solved example in the notes without looking at the steps.
Day 6: answer the 10 practice questions at the end of the PDF under a time limit.
Day 7: solve one recent official paper from your university and revise the topics you got wrong.

Who these notes are for

B.Tech semester exams: covers the IS 800 design topics of the Design of Steel Structures paper.
GATE CE basics: safety factors, bolt and weld strength, net area, effective length and shape factor are common GATE CE questions.
Site work and interviews: structural and fabrication engineers get quick recall of connection rules and member checks.

Check your own syllabus and the current IS codes

Universities split and order these topics differently, and some leave out units or add extra ones. Match the notes against your own university syllabus and recent official question papers before you plan your revision. The notes follow IS 800:2007, with loads from IS 875 (including Part 3 for wind) and earthquake forces from IS 1893. Codes are revised from time to time, so check the current edition and any amendments before you use a value in design work or quote it in an answer. Uncodemy keeps a list of previous year question paper sources if you want official papers to practise with.

Download Steel Structures Handwritten Notes PDF