6.12　Tail Device

Ⅰ　Dominant Item

6.12.1　Preset expansion gap for rail joints at intermediate and tail part shall meet requirements of design technical document.

Check quantity:to check all.

Inspection method:to check installation quality records or to take actual measurements.

Ⅱ　General Item

6.12.2　Installation of high strength bolts must meet requirements in current national standard GB 50205 Code for Acceptance of Construction Quality of Steel Structures.

Check quantity:spot check 20% according to milestones.

Inspection method:to check quality qualification documentation，re-check report and installation quality records，to inspect.

6.12.3　Tolerance for installation of lateral travelling tail rack shall meet requirements in Table 6.12.3.

Check quantity:to check all.

Inspection method:see Table 6.12.3.

6.12.4　Tolerance for installation of lateral travelling tail bending rail shall meet requirements in Table 6.12.4，see Figure 6.12.4.

Check quantity:to check all.

Inspection method:see Table 6.12.4.

6.12.5　Tolerance for installation of lateral travelling tail wheel shall meet requirements in Table 6.12.5，see Figure 6.12.4.

Check quantity:to check all.

Inspection method:see Table 6.12.5.

6.12.6　Tolerance for installation of pendulum type tail wheel shall meet requirements in Table 6.12.6.

Check quantity:to check all.

Inspection method:see Table 6.12.6.