A team of pupils from Ysgol Bro Morgannwg were among the winners of an engineering challenge for students.
The Institution of Civil Engineers holds an annual event for 16-18 year olds from across South Wales.
Students are tasked with developing a design and constructing a structure with the equipment and materials provided on the day.

This year's challenge was to build a two-storey structure from two decks of cards, which could not be cut or torn, together with blue tack and a small mat.
It had to withstand at least 100g with a base of 300m x 300m.
For their efforts, the WGLSD team - consisting of Aled Phillips, Will Thomas, Conor Williams, Llion Vaterlaws and Evan Boult won the aesthetics category.

Calls for Old Harbour reserve turned down
Barry man charged with assaulting police officers
Talks to be held on Cardiff Rugby sale
Barry Arts Festival returns with Waldo play
No decision yet on Barry wood plant
Plaid wins St Athan by-election
Council to relaunch street cleaning service
Petition supporting Tree Preservation Order reaches 1,000 signatures
Le Tour comes to Cardiff
Trampoline park owner avoids jail
Housing rent increase rubberstamped
Half-hourly Vale trains delayed again
Tax premiums retained for empty homes
15,000 'missing' women at risk of breast cancer
Council facing £6.6m budget gap
Porthkerry: grazing sheep attacked by dog
20 or 30? Council to consider speed limit changes