PL424751A1 - Method for strengthening of flat reinforced concrete slabs made from lightweight concrete against puncture - Google Patents

Method for strengthening of flat reinforced concrete slabs made from lightweight concrete against puncture

Info

Publication number
PL424751A1
PL424751A1 PL424751A PL42475118A PL424751A1 PL 424751 A1 PL424751 A1 PL 424751A1 PL 424751 A PL424751 A PL 424751A PL 42475118 A PL42475118 A PL 42475118A PL 424751 A1 PL424751 A1 PL 424751A1
Authority
PL
Poland
Prior art keywords
formwork
slab
section
shape
head
Prior art date
Application number
PL424751A
Other languages
Polish (pl)
Other versions
PL241844B1 (en
Inventor
Tadeusz Urban
Michał Gołdyn
Original Assignee
Politechnika Łódzka
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Łódzka filed Critical Politechnika Łódzka
Priority to PL424751A priority Critical patent/PL241844B1/en
Publication of PL424751A1 publication Critical patent/PL424751A1/en
Publication of PL241844B1 publication Critical patent/PL241844B1/en

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Abstract

Przedmiotem zgłoszenia jest sposób wzmocnienia płaskich płyt żelbetowych z betonu lekkiego na przebicie. Sposób ten charakteryzuje się tym, że przed montażem zbrojenia głównego płyty i układaniem betonu lekkiego na deskowaniu ustawia się, centrycznie względem przekroju słupa, szalunek formujący głowice z fibrobetonu, przy czym kształt szalunku dostosowany jest do kształtu podpory i w przypadku słupów o przekroju prostokątnym stosuje się szalunek o kształcie pobocznicy ostrosłupa ściętego, natomiast w przypadku słupów o przekroju kołowym stosuje się szalunek o kształcie pobocznicy stożka lub ostrosłupa ściętego, a następnie po umieszczeniu szalunku na deskowaniu wypełnia się go fibrobetonem, po zagęszczeniu którego usuwa się szalunek poprzez uniesienie go do góry, przy czym stosuje się wysięg dolnej części głowicy poza krawędź słupa nie mniejszy niż wysokość użyteczna płyty, wysokość głowicy nie mniejszą niż 0,5 wysokości użytecznej płyty oraz kąt ostry nachylenia tworzącej pobocznicy głowicy względem powierzchni deskowania stropu.The subject of the application is a method of reinforcing flat reinforced concrete slabs of lightweight concrete for punching. This method is characterized by the fact that before the assembly of the main reinforcement of the slab and the laying of lightweight concrete on the formwork, the formwork forming the fiber concrete heads is set centrally in relation to the column cross-section, the formwork shape being adapted to the shape of the support, and in the case of columns with a rectangular cross-section, the formwork is used in the shape of the side surface of a truncated pyramid, while in the case of columns with a circular cross-section, a cone-shaped or truncated pyramid-shaped formwork is used, and then, after placing the formwork on the formwork, it is filled with fibrobeton, after which the formwork is removed by lifting it upwards, the head's lower part is extended beyond the edge of the column, not less than the useful height of the slab, the height of the head not less than 0.5 of the effective slab height and the sharp angle of inclination of the head forming side surface in relation to the ceiling formwork surface.

PL424751A 2018-03-05 2018-03-05 Method for strengthening of flat reinforced concrete slabs made from lightweight concrete against puncture PL241844B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL424751A PL241844B1 (en) 2018-03-05 2018-03-05 Method for strengthening of flat reinforced concrete slabs made from lightweight concrete against puncture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL424751A PL241844B1 (en) 2018-03-05 2018-03-05 Method for strengthening of flat reinforced concrete slabs made from lightweight concrete against puncture

Publications (2)

Publication Number Publication Date
PL424751A1 true PL424751A1 (en) 2019-09-09
PL241844B1 PL241844B1 (en) 2022-12-12

Family

ID=67844684

Family Applications (1)

Application Number Title Priority Date Filing Date
PL424751A PL241844B1 (en) 2018-03-05 2018-03-05 Method for strengthening of flat reinforced concrete slabs made from lightweight concrete against puncture

Country Status (1)

Country Link
PL (1) PL241844B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL166153B1 (en) * 1991-06-17 1995-04-28 Wyzsza Szkola Inzynierska Slab-type floor supported on pillars
PL340026A1 (en) * 2000-05-08 2001-11-19 Jerzy Pluta Partially prefabricated compound floor supported on precast headed columns
JP2004107961A (en) * 2002-09-17 2004-04-08 Takenaka Komuten Co Ltd Flexural reinforcement construction method for junction of existing pillar and beam or slab
PL198912B1 (en) * 1997-02-12 2008-07-31 Bekaert Sa Nv Combined reinforcement for a concrete floor and its supporting pillars

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL166153B1 (en) * 1991-06-17 1995-04-28 Wyzsza Szkola Inzynierska Slab-type floor supported on pillars
PL198912B1 (en) * 1997-02-12 2008-07-31 Bekaert Sa Nv Combined reinforcement for a concrete floor and its supporting pillars
PL340026A1 (en) * 2000-05-08 2001-11-19 Jerzy Pluta Partially prefabricated compound floor supported on precast headed columns
JP2004107961A (en) * 2002-09-17 2004-04-08 Takenaka Komuten Co Ltd Flexural reinforcement construction method for junction of existing pillar and beam or slab

Also Published As

Publication number Publication date
PL241844B1 (en) 2022-12-12

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