[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.rejza.cz\/s-jeraby-si-hraji-i-male-deti\/#Article","mainEntityOfPage":"https:\/\/www.rejza.cz\/s-jeraby-si-hraji-i-male-deti\/","headline":"S je\u0159\u00e1by si hraj\u00ed i mal\u00e9 d\u011bti","name":"S je\u0159\u00e1by si hraj\u00ed i mal\u00e9 d\u011bti","description":"Tak\u00e9 jste si r\u00e1di jako mal\u00e9 d\u011bti hr\u00e1li se stavebnicemi? Za socialismu se vyr\u00e1b\u011bla popul\u00e1rn\u00ed stavebnice Merkur a i dnes se s n\u00ed m\u016f\u017eete na trhu setkat. Dalo se z n\u00ed postavit leccos a mimo jin\u00e9 i port\u00e1lov\u00fd nebo stavebn\u00ed je\u0159\u00e1b. Takov\u00e1 konstrukce byla \u00fa\u017easn\u00e1, tajil se z n\u00ed dech a pro d\u011bti to p\u0159edstavovalo […]","datePublished":"2025-03-22","dateModified":"2025-03-22","author":{"@type":"Person","@id":"https:\/\/www.rejza.cz\/author\/#Person","name":"","url":"https:\/\/www.rejza.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/383247cd769f7ac317a5bcda943ec48a3c79d996598ae4564ec21a0e178126d1?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/383247cd769f7ac317a5bcda943ec48a3c79d996598ae4564ec21a0e178126d1?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"rejza.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.rejza.cz\/wp-content\/uploads\/crane-325038_640.jpg","url":"https:\/\/www.rejza.cz\/wp-content\/uploads\/crane-325038_640.jpg","height":0,"width":0},"url":"https:\/\/www.rejza.cz\/s-jeraby-si-hraji-i-male-deti\/","about":["V\u00fdrobky"],"wordCount":432,"articleBody":"   Tak\u00e9 jste si r\u00e1di jako mal\u00e9 d\u011bti hr\u00e1li se stavebnicemi? Za socialismu se vyr\u00e1b\u011bla popul\u00e1rn\u00ed stavebnice Merkur a i dnes se s n\u00ed m\u016f\u017eete na trhu setkat. Dalo se z n\u00ed postavit leccos a mimo jin\u00e9 i port\u00e1lov\u00fd nebo stavebn\u00ed je\u0159\u00e1b. Takov\u00e1 konstrukce byla \u00fa\u017easn\u00e1, tajil se z n\u00ed dech a pro d\u011bti to p\u0159edstavovalo n\u011bco v\u00fdjime\u010dn\u00e9ho.Kdy\u017e pak takov\u00e1 d\u011bcka odrostou a stavebnice odlo\u017e\u00ed, mo\u017en\u00e1 je za\u010dne l\u00e1kat sledovat je\u0159\u00e1by opravdov\u00e9 \u2013 ty skute\u010dn\u00e9, za nimi\u017e se vyprav\u00ed na stavbu a mo\u017en\u00e1, \u017ee zatou\u017e\u00ed v kabin\u011b je\u0159\u00e1bu sed\u011bt a t\u00edmto zp\u016fsobem se i \u017eivit. B\u00fdt je\u0159\u00e1bn\u00edkem je sv\u00fdm zp\u016fsobem tak trochu adrenalin, ale podstatn\u00e9 je, \u017ee s pomoc\u00ed je\u0159\u00e1b\u016f rostlou silnice a mosty, v\u00fd\u0161kov\u00e9 budovy \u010di parkovi\u0161t\u011b a neobejde se bez nich prakticky \u017e\u00e1dn\u00e1 modern\u00ed spole\u010dnost. Zaj\u00edmav\u00e9 ov\u0161em tak\u00e9 je m\u00edt pov\u011bdom\u00ed o tom, z jak\u00e9ho materi\u00e1lu se vlastn\u011b je\u0159\u00e1by sestavuj\u00ed.N\u00edzkouhl\u00edkov\u00e1 konstruk\u010dn\u00ed ocel \u2013 aby bylo mo\u017eno sestavit stavebn\u00ed je\u0159\u00e1b, je k tomu zapot\u0159eb\u00ed tento typ oceli. Pro konstrukce je\u0159\u00e1b\u016f plat\u00ed zvl\u00e1\u0161tn\u00ed pravidla, kter\u00e1 nejsou obvykl\u00e1 pro b\u011b\u017enou konstruk\u010dn\u00ed ocel vyu\u017e\u00edvanou v interi\u00e9ru, zde se stavebn\u00ed pr\u00e1ce odehr\u00e1vaj\u00ed za zt\u00ed\u017een\u00fdch pov\u011btrnostn\u00edch podm\u00ednek, nap\u0159\u00edklad v letn\u00edch m\u011bs\u00edc\u00edch v tropick\u00fdch vedrech a v zim\u011b i za siln\u00fdch mraz\u016f. Ocelov\u00e9 nosn\u00edky tu tedy mus\u00ed odol\u00e1vat velk\u00e9mu rozp\u011bt\u00ed teplot a b\u00fdt dostate\u010dn\u011b pevn\u00e9 i za velmi n\u00edzk\u00fdch teplot.Z\u0159ejm\u011b si dob\u0159e uv\u011bdomujete, jak d\u016fle\u017eit\u00e1 je mechanick\u00e1 pevnost oceli na stavb\u00e1ch, kdyby se takov\u00fd je\u0159\u00e1b z\u0159\u00edtil jen d\u00edky vad\u011b materi\u00e1lu, mohlo by to m\u00edt katastrof\u00e1ln\u00ed n\u00e1sledky nejen pro obsluhu je\u0159\u00e1bu. A pr\u00e1v\u011b proto se tak\u00e9 uva\u017euje p\u0159i v\u00fdrob\u011b t\u00e9to oceli 11 503 nad t\u00edm, \u017ee poslou\u017e\u00ed pro tyto \u010di jin\u00e9 \u00fa\u010dely, kde se pracuje v exteri\u00e9ru jak v na\u0161\u00ed zemi, tak i v pol\u00e1rn\u00edch oblastech, kde teploty ovzdu\u0161\u00ed padaj\u00ed hluboko pod bod mrazu. S ocel\u00ed 11 503 lf2+n se ov\u0161em po\u010d\u00edt\u00e1 i tam, kde jsou zv\u00fd\u0161en\u00e9 po\u017eadavky na nam\u00e1h\u00e1n\u00ed materi\u00e1lu p\u0159i vy\u0161\u0161\u00edch teplot\u00e1ch a tlac\u00edch, jako jsou tlakov\u00e9 n\u00e1doby, potrub\u00ed, kotle a tepeln\u00e9 v\u00fdm\u011bn\u00edky.                                                                                                                                                                                                                                                                                                                                                                                          4.2\/5 - (5 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"S je\u0159\u00e1by si hraj\u00ed i mal\u00e9 d\u011bti","item":"https:\/\/www.rejza.cz\/s-jeraby-si-hraji-i-male-deti\/#breadcrumbitem"}]}]