Engineering decisions, documented in real projects

The prob­lem. For a multi­use pub­lic build­ing, his­tor­i­cal records and cadas­tral data did not ac­cu­rate­ly de­scribe the ex­ist­ing struc­ture. The ini­tial brief con­cerned only one part of it.

The re­sponse. Re­view of the en­tire build­ing’s records and up­date of the cadas­tral doc­u­men­ta­tion. Func­tion­al and fire-safe­ty de­sign for the rel­e­vant por­tion.

Doc­u­ment­ed out­come. The fire-safe­ty de­sign re­ceived a favourable as­sess­ment. The doc­u­men­ta­tion sup­port­ed a fund­ing ap­pli­ca­tion.

The prob­lem. The orig­i­nal scheme re­lied on a stair in an area with a sig­nif­i­cant level dif­fer­ence. Its re­vi­sions did not sat­is­fac­to­ri­ly re­solve ac­ces­si­bil­i­ty.

The re­sponse. Dis­cus­sion with the project of­fi­cer led to mov­ing the en­trance to a more suit­able lo­ca­tion. An ac­ces­si­ble foot­bridge was de­vel­oped through struc­tur­al de­sign, site plan­ning and works su­per­vi­sion.

Dur­ing con­struc­tion. The tubu­lar steel­work re­quired par­tic­u­lar care in as­sem­bly. Op­er­a­tional re­quire­ments iden­ti­fied with the op­er­a­tors were ad­dressed through a for­mal de­sign vari­a­tion.

Doc­u­ment­ed out­come. The pho­tographs doc­u­ment the area be­fore con­struc­tion and the com­plet­ed foot­bridge.

The prob­lem. A pub­licly owned part of a his­toric build­ing was struc­tural­ly con­tin­u­ous with pri­vate­ly owned parts. Its roof and floors were dam­aged; the prop­er­ty bound­ary was not the bound­ary of the struc­tur­al prob­lem.

The re­sponse. As­sess­ment of the whole build­ing’s be­hav­iour in­formed the foun­da­tion and ma­son­ry strength­en­ing de­sign for the rel­e­vant por­tion, ac­count­ing for ad­join­ing parts.

Dur­ing con­struc­tion. Strength­en­ing pro­ceed­ed in stages, with tech­ni­cal sup­port to the mu­nic­i­pal works su­per­vi­sor dur­ing crit­i­cal struc­tur­al phas­es. The prac­tice’s as­sign­ment did not in­clude works su­per­vi­sion or con­struc­tion-stage safe­ty co­or­di­na­tion.

Doc­u­ment­ed out­come. The re­ha­bil­i­ta­tion was com­plet­ed. The pho­tographs show the ini­tial con­di­tion and a con­struc­tion phase.

The prob­lem. Ex­tend­ing a pub­lic nurs­ery re­quired struc­tur­al, fire-safe­ty and build­ing-sys­tems work to re­main con­sis­tent across a team de­sign.

The re­sponse. The prac­tice, as lead mem­ber of the pro­fes­sion­al team, com­plet­ed the final de­sign re­view and un­der­took works su­per­vi­sion. The project in­te­grates struc­ture, build­ing sys­tems, fire safe­ty and re­new­able en­er­gy.

Dur­ing con­struc­tion. The as­sign­ment cov­ered con­struc­tion mon­i­tor­ing, mea­sure­ments and ac­counts through site close-out.

Doc­u­ment­ed out­come. The ex­ten­sion was built. The pho­tographs doc­u­ment a con­struc­tion phase and the com­ple­tion of the rooftop sys­tems.

The prob­lem. A pub­lic build­ing made up of sev­er­al struc­tur­al units re­quired a re­li­able un­der­stand­ing of its con­struc­tion be­fore seis­mic in­ter­ven­tions could be planned.

The re­sponse. The pro­fes­sion­al team, led by the prac­tice, or­gan­ised in­ves­ti­ga­tions and com­plet­ed the seis­mic vul­ner­a­bil­i­ty as­sess­ment of the units, com­par­ing struc­tur­al-re­sponse as­sump­tions.

Doc­u­ment­ed out­come. The as­sess­ment was de­liv­ered with pro­pos­als and cost es­ti­mates for pos­si­ble in­ter­ven­tions. Sub­se­quent de­sign phas­es fol­lowed a sep­a­rate pro­ce­dure.

The prob­lem. A large pub­lic car park across mul­ti­ple lev­els, with an ex­ten­sive out­door area, re­quired fire-safe­ty de­sign co­or­di­nat­ed with the build­ing and planned sys­tems.

The re­sponse. Fire-safe­ty de­sign and prepa­ra­tion of the doc­u­ments for Fire Brigade as­sess­ment. Ar­chi­tec­tur­al and struc­tur­al de­sign and works su­per­vi­sion re­mained with the au­thor­i­ty.

Doc­u­ment­ed out­come. The de­sign re­ceived a favourable as­sess­ment sub­ject to con­di­tions. Con­struc­tion is under way; com­ple­tion and SCIA fil­ing are not doc­u­ment­ed.

The prob­lem. A pub­lic nurs­ery re­quired a fire-safe­ty up­grade while re­tain­ing its ed­u­ca­tion­al use and co­or­di­nat­ing works with the au­thor­i­ty’s in-house su­per­vi­sor.

The re­sponse. Fire-safe­ty de­sign, man­age­ment of the Fire Brigade as­sess­ment and con­struc­tion-stage as­sis­tance to the works su­per­vi­sor ap­point­ed by the au­thor­i­ty.

Doc­u­ment­ed out­come. The de­sign re­ceived a favourable as­sess­ment sub­ject to con­di­tions. The fire-safe­ty SCIA and close-out of the works are doc­u­ment­ed.

The prob­lem. The school project need­ed en­er­gy per­for­mance, build­ing sys­tems, fire safe­ty, struc­tur­al work and fa­cade main­te­nance to be co­or­di­nat­ed.

The re­sponse. The prac­tice’s con­tri­bu­tion with­in the de­sign team cov­ered en­er­gy, elec­tri­cal sys­tems and fire safe­ty. An­oth­er en­gi­neer han­dled struc­tur­al de­sign; the ar­chi­tect lead­ing the team han­dled fa­cade main­te­nance.

Doc­u­ment­ed out­come. The doc­u­ments record the prac­tice’s de­sign con­tri­bu­tion in the three as­signed dis­ci­plines. Mea­sured post-in­ter­ven­tion en­er­gy re­sults are not avail­able.

The prob­lem. A pub­lic build­ing with op­er­a­tional spaces and ac­com­mo­da­tion had an in­ef­fi­cient en­ve­lope and dif­fer­ent heat­ing and cool­ing sys­tems across its zones. Se­cu­ri­ty el­e­ments lim­it­ed some pos­si­ble re­place­ments.

The re­sponse. The en­er­gy as­sess­ment in­formed the en­ve­lope and sys­tems re­fur­bish­ment de­sign, with in­ter­ven­tions tai­lored to the dif­fer­ent zones and in­te­gra­tion of re­new­able-en­er­gy sources.

Doc­u­ment­ed out­come. The de­sign was up­dat­ed in later re­vi­sions. Post-in­ter­ven­tion per­for­mance rep­re­sents the de­sign sce­nario, not mea­sured con­sump­tion or sav­ings.