Other standards for hazardous building assessment

Section 1: Beam Specifications

1. Single girder or central section of a continuous girder shows transverse cracking, either extending upwards beyond 3/2 of the girder's height with protective layers falling off, accompanied by vertical cracks below.

2. The frame beam exhibits significant vertical or diagonal cracks at the fixed end, or interlaced cracks appear.

3. Significant diagonal cracks appear at the ends of simply supported beams and continuous beams, and significant vertical or diagonal cracks appear at the root of the cantilever beam.

4. Cracks appear around the perimeter of the tamping board, or interlaced cracks appear on the bottom.

5. Significant vertical cracks have appeared beneath the prefabricated panels.

6. Various board protective layers have fallen off, with over half of the main reinforcement exposed, severe rusting, and cross-sectional reduction.

7. Various beams and plates exhibit deflection exceeding 1/150 of their span, and cracks in the tension zone are wider than 1mm.

8. Prestressed prefabricated panels exhibit vertical through cracks; or the concrete at the ends is loose, exposing steel reinforcement, with a length exceeding 100% of the main reinforcement.

Section 2: Wall Column Specifications

1. Significant interlaced cracks appear in the center of the wall, or accompanied by the fall of the protective layer.

2. Cracks in the wall columns or the falling off of the protective layer. The primary issue is the exposed steel reinforcement, or the presence of significant horizontal cracks, crushing, etc.

3. Columns and wall concrete are cracked, carbonized, and bulging; the damaged area exceeds one-third of the total area, with the main steel exposed, severely corroded, and the cross-section reduced.

4. Columns and walls exhibit tilting, with the tilt exceeding 1/100th of their height.