| Number of Occurrences | Symbol | Causes of failure |
| a. Triggering causes of failure | ||
| 3 | a | Heavy rain causing falsework foundation slippage |
| 1 | b | Strong river current causing falsework foundation slippage |
| 1 | c | Strong winds |
| 4 | d | Fire |
| 5 | e | Failure of equipment for moving formwork |
| 4 | f | Effects of formwork component failure |
| 1 | g | Concentrated load due to improper prestressing operation |
| 2 | h | Concentrated load due to construction material |
| 2 | i | Other imposed loads |
| 27 | j | Impact loads from concrete debris and other effects during concreting |
| 3 | k | Impact load from construction equipment/vehicles |
| 5 | l | Vibration from nearby equipment/vehicles or excavation work |
| 6 | m | Effect of improper/premature falsework or formwork removal |
| 20 | n | Other causes or not available |
| b. Enabling causes of failure | ||
| 17 | A | Inadequate falsework cross- bracing/lacing |
| 14 | B | Inadequate falsework component |
| 9 | C | Inadequate falsework connection |
| 7 | D | Inadequate falsework foundation |
| 8 | E | Inadequate falsework design |
| 4 | F | Insufficient number of shoring |
| 1 | G | Inadequate reshoring |
| 4 | H | Failure of movable falsework/formwork components |
| 2 | I | Improper installation/maintenance of construction equipment |
| 1 | J | Failure of permanent structure component |
| 4 | K | Inadequate soil foundation |
| 2 | L | Inadequate design/construction of a permanent structure |
| 30 | S | Other causes or not available |
| C. Procedural causes of failure | ||
| 23 | M | Inadequate review of falsework design/construction |
| 22 | N | Lack of inspection of falsework/formwork during concreting |
| 2 | O | Improper concrete test prior to removing falsework /formwork |
| 4 | P | Employment of inexperienced/inadequately trained workmen |
| 1 | Q | Inadequate communication between parties involved |
| 5 | R | Change of falsework design concept during construction |
| 38 | T | Other causes or not available |
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