Build­ing Smartly

MGS Architecture - - Con­tents -

Con­cept de­sign is cru­cial in un­der­stand­ing the fea­si­bil­ity of a pre­cast con­struc­tion method­ol­ogy, writes Prakash Shah, Head of Tech­ni­cal Sup­port at Elem­atic

Con­cept de­sign is very cru­cial in un­der­stand­ing the fea­si­bil­ity of a pre­cast con­strucɵon method­ol­ogy, writes Prakash Shah, Head of Tech­ni­cal Sup­port at Ele­maɵc in In­dia

It all starts with an eval­u­a­tion: a good con­cept de­sign in­cludes a thor­ough eval­u­a­tion on how cur­rent and fu­ture projects could be struc­tured us­ing pre­cast, and whether to use com­plete or com­pos­ite struc­tures. The per­for­mance of the pre­cast build­ing in the lo­cal ground con­di­tions and the re­quired pre­cast prod­uct types are also eval­u­ated. A good ex­am­ple of con­cept de­sign is the one used by Jin­dal Re­al­ity (JRPL), who used Elem­atic’s pre­cast tech­nol­ogy in their Jin­dal Global City and Uni­ver­sity project in In­dia. Jin­dal was look­ing for a con­struc­tion tech­nique that would en­tail rapid con­struc­tion, high qual­ity, and less la­bor-ori­ented work. We car­ried out con­cept de­sign for their build­ing re­quire­ments; pro­vided de­tails on how pre­cast can be im­ple­mented and on the con­struc­tion method­ol­ogy. Based on our in­puts, JRPL suc­cess­fully fin­ished the con­struc­tion project of sev­eral 6 to 9 storey tall build­ings of ap­prox.10,00,000 m² in a high seis­mic zone-4. These build­ings are com­pletely pre­cast struc­tures com­pris­ing the wall-frame sys­tem, which gives bet­ter uti­liza­tion of the floor area as com­pared to con­ven­tional con­struc­tion.

Im­por­tance of a con­cept de­sign of­fice

When tak­ing up a new con­struc­tion method, it’s ex­tremely im­por­tant to find a pro­fes­sional part­ner who can help you in reach­ing the best pos­si­ble out­come. In fact, when con­sid­er­ing which struc­tural en­gi­neer­ing ser­vices provider to choose in the pre-cast­ing field, spe­cial at­ten­tion should be paid to sev­eral fac­tors be­sides the crit­i­cal con­cept eval­u­a­tion. The de­sign en­gi­neers should have a sound know-how on de­vel­op­ments in the pre­cast in­dus­try, along with good prac­tices of suc­cess­fully im­ple­mented sys­tems. In ad­di­tion, they should have ex­pe­ri­ence on ge­o­graph­i­cally var­ied projects, in­ter­na­tional struc­tural stan­dards and uti­liza­tion of var­ied pro­grams. They should have a sound knowl­edge about pre­cast pro­duc­tion, plant op­er­a­tions and ef­fi­cient work­ing meth­ods, as well as struc­tural con­nec­tions, as the life­time be­hav­ior of pre­cast build­ings is one of the most cru­cial as­pects.

Pre­par­ing for con­cept de­sign project

Un­der­stand­ing the na­ture of the project in to­tal­ity is cru­cial for the con­cept de­sign team, be­cause it’s the start­ing point for eval­u­at­ing the suit­abil­ity of pre­cast to the project. For the best pos­si­ble out­come, the team needs to re­ceive ar­chi­tec­tural draw­ings, in­clud­ing lay­outs, el­e­va­tions, sec­tions and spe­cial fea­tures, if any. In ad­di­tion, de­tails of build­ing util­ity ser­vices ar­range­ments, lo­cal seis­mic de­tails and costs of lo­cal struc­tural ma­te­ri­als are needed. The con­cept de­sign phase usu­ally takes 8 to 10 weeks to com­plete. How­ever, all projects are unique in terms of ar­chi­tec­tural com­plex­ity, seis­mic­ity, geo­graph­i­cal lo­ca­tion and other con­struc­tion re­quire­ments; hence, a

Any­one pon­der­ing about the suit­abil­ity of a pre­cast con­crete struc­ture may be un­sure on how to truly eval­u­ate its ben­e­fits. Con­cept de­sign ser­vices will help in adopt­ing the right pre­cast con­crete tech­nol­ogy by pro­vid­ing a clear cost cal­cu­la­tion and a plan for the most suit­able prod­ucts and ma­te­ri­als Prakash Shah

pre­cise time for the de­sign­ing phase can­not be pro­vided be­fore know­ing all the de­tails af­fect­ing the de­sign.

Con­cept de­sign re­port cru­cial

The end re­sult of a con­cept de­sign project is a re­port that should in­clude all nec­es­sary in­for­ma­tion such as ba­sis of struc­tural anal­y­sis and de­sign, in­clud­ing load­ing data, de­sign code de­tails and struc­tural fram­ing con­cept de­tails with pre­cast ar­range­ment, and typ­i­cal con­nec­tion de­tails of var­i­ous pre­cast el­e­ments. The re­port should also en­tail siz­ing, ge­o­met­ri­cal de­tails and a num­ber of dif­fer­ent pre­cast prod­uct types, in­clud­ing re­in­force­ment, pre­stress­ing and con­crete strengths, and any sug­gested changes to ar­chi­tec­tural de­sign, to make the build­ing more ef­fi­cient. Fi­nally, it should have de­tails of pro­duc­tion setup and equip­ment re­quire­ments. One of Elem­atic’s cus­tomers in con­cept de­sign is KEF In­fras­truc­ture, which con­structed the PMHS Hos­pi­tal in

which city?? - one of their first pre­cast projects in In­dia. KEF was al­ready ex­plor­ing pre­cast tech­nol­ogy for the project but the sug­ges­tion they had at that time was rather old-fash­ioned and la­bor in­ten­sive, with com­plex pro­duc­tion and ex­e­cu­tion. If the orig­i­nal plan had been fol­lowed, the project would have been costly and time­con­sum­ing with ques­tion­able re­sults. We car­ried out con­cept de­sign for the hos­pi­tal build­ing, giv­ing de­tails on how modern pre­cast con­crete tech­nol­ogy can be im­ple­mented with ef­fi­cient pre­cast el­e­ment re­quire­ments. We also gave ad­vice on how to set up a pro­duc­tive and very flex­i­ble pro­duc­tion sys­tem, which will cater to the var­i­ous project needs in the fu­ture. As a re­sult, KEF was able to set up a pro­duc­tive and cost-ef­fi­cient so­lu­tion for the chal­leng­ing hos­pi­tal project com­pris­ing 300,000 m² area, lo­cated in seis­mic zone-3. The struc­tural sys­tem com­prised multi-storey re­in­forced pre­cast col­umns, pre­stressed pre­cast beams, hol­low-core slabs with struc­tural top­ping, staircases and spe­cial- fea­tured graphic con­crete façade pan­els.

To­tal so­lu­tions

After in-depth knowl­edge about the pre­cast con­struc­tion tech­nol­ogy and its suit­abil­ity to the client’s project, the next step is to dis­cuss more about the struc­tural sys­tem, sug­gested ar­chi­tec­tural changes, project costs and pre­cast pro­duc­tion set-up re­quire­ments. Be­sides a fea­si­bil­ity study, Elem­atic can help in fi­nal­iz­ing the build­ing de­tails and set­ting up a pre­cast plant, for which the com­pany pro­vides so­lu­tions from de­sign to its com­plete life­cy­cle.

Newspapers in English

Newspapers from India

© PressReader. All rights reserved.