Contents 1
General Instruction 4
Part One Drawing Rules of Ichnographic Representing Method
1 General Provisions 5
2 Rules of Ichnographic Construction Drawings of Spread Footings 7
2.1 Representing method of ichnographic construction drawings of spread footings 7
2.2 Numbering spread footings 7
2.3 Ichnographic annotation method of spread footings 7
Construction drawing of spread footings using ichnographic representing method 18
2.4 Sectional annotation method of spread footings 19
2.5 Other 20
3 Rules of Ichnographic Construction Drawings of Strip Footings 21
3.1 Representing method of ichnographic construction drawings of strip footings 21
3.2 Numbering strip footings 21
3.3 Ichnographic annotation method of foundation beams 21
3.4 Rules of the length of discontinuous longitudinal bars in the bottom of foundation beams 23
3.5 Ichnographic annotation method of the slab of strip footings 24
Construction drawing of strip footings using ichnographic representing method 27
3.6 Sectional annotation method of strip footings 28
3.7 Other 29
4 Rules of Ichnographic Construction Drawings of Waffle-slab Raft Foundations 30
4.1 Representing method of ichnographic construction drawings of waffle-slab raft foundations 30
4.2 Types and numbering of members in waffle-slab raft foundations 30
4.3 Ichnographic annotation method of primary & secondary foundation beams 30
4.4 Rules of the length of discontinuous longitudinal bars in the bottom of foundation beams 33
4.5 Ichnographic annotation method of slabs of waffle-slab raft foundations 33
4.5 Ichnographic annotation method of slabs of waffle-slab raft foundations 33
4.6 Other 35
Annotation of the primary foundation beam (JL) and secondary foundation beam (JCL) 36
Annotation of the slab (LPB) of waffle-slab raft foundation 37
5 Rules of Ichnographic Construction Drawings of Plate Raft Foundations 38
5.1 Representing method of ichnographic construction drawings of plate raft foundations 38
5.2 Types and numbering of members in plate raft foundations 38
5.3 Ichnographic annotation method of slab strips under columns and slab strips at midspan 38
5.4 Ichnographic annotation method of the slab (BPB) of plate raft foundations 40
5.5 Other 41
Annotation of slab strips under columns (ZXB) and slab strips at midspan (KZB) 42
Annotation of the slab (BPB) of plate raft foundations 43
6 Rules of Ichnographic Construction Drawings of Pile Caps 44
6.1 Representing method of ichnographic construction drawings of pile caps 44
6.2 Numbering pile caps 44
6.3 Ichnographic annotation method of independent pile caps 44
6.4 Ichnographic annotation method of pile foundation beams 47
6.5 Sectional annotation method of pile caps 49
6.6 Other 49
7 Drawing Rules of Detailing Related to the Foundation 50
7.1 Types and representing method of related detailing 50
7.2 Drawing rules for ichnographic construction drawings of related detailing 50
7.3 Other 53
Part Two Standard Detailing Drawings
The basic anchorage length lab, labE, anchorage length la , anti-seismic anchorage length laE and correction factorξa of anchorage length for tensile reinforcement 54
Environment classification for concrete structures Minimum thickness of concrete cover Detailing of stirrups in the lapping section of longitudinal stressed bars 55
Hook and mechanical anchorage type of longitudinal bars Lapping length/ ll l, llE for binding longitudinal bars under tension 56
Detailing of closed stirrups and hooks of tie bars Compounding pattern of stirrups of the foundation beam Lapping detailing of non-contact longitudinal bars 57
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