MD764Z - Process for horizontal reinforcement of stone masonry - Google Patents
Process for horizontal reinforcement of stone masonry Download PDFInfo
- Publication number
- MD764Z MD764Z MDS20130190A MDS20130190A MD764Z MD 764 Z MD764 Z MD 764Z MD S20130190 A MDS20130190 A MD S20130190A MD S20130190 A MDS20130190 A MD S20130190A MD 764 Z MD764 Z MD 764Z
- Authority
- MD
- Moldova
- Prior art keywords
- masonry
- wall
- reinforcement
- bars
- horizontal reinforcement
- Prior art date
Links
- 230000002787 reinforcement Effects 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000004575 stone Substances 0.000 title claims abstract description 11
- 238000010276 construction Methods 0.000 abstract description 9
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011381 foam concrete Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/04—Walls having neither cavities between, nor in, the solid elements
- E04B2/06—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/04—Mats
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Load-Bearing And Curtain Walls (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
Description
Invenţia se referă la construcţie, în special la procedee de armare orizontală a zidăriei din piatră, şi poate fi aplicată la zidirea clădirilor cu destinaţie diversă, inclusiv în zone cu risc seismic. The invention relates to construction, in particular to processes for horizontal reinforcement of stone masonry, and can be applied to the construction of buildings for various purposes, including in areas with seismic risk.
Este cunoscut un procedeu de armare a zidăriei din piatră, care include utilizarea armăturii executate în formă de plasă intersectată cu ochiuri dreptunghiulare şi amplasarea acesteia în rosturile de mortar orizontale cu un interval de cel mult 40 cm pe înălţimea zidăriei, plasa fiind executată din bare cu diametrul de 3…4 mm sau de tip «zigzag» din bare cu diametrul de 6 mm [1]. A process for reinforcing stone masonry is known, which includes the use of reinforcement made in the form of a mesh intersected with rectangular meshes and its placement in horizontal mortar joints with an interval of no more than 40 cm along the height of the masonry, the mesh being made of bars with a diameter of 3…4 mm or of the «zigzag» type from bars with a diameter of 6 mm [1].
Dezavantajele procedeului cunoscut constau în aceea că consolidând zidăria, armătura şi modul de amplasare a acesteia afectează mult proprietăţile termoizolante ale peretelui. Aceasta este cauzat de conductibilitatea termică înaltă a barelor, care se amplasează perpendicular grosimii peretelui (coeficientul de conductibilitate termică a oţelului de construcţie λ = 58 W/(m·°С), care mai bine de 400 de ori depăşeşte coeficientul de conductibilitate termică a betonului structural termoizolator celular, utilizat pe larg la ridicarea construcţiilor de închidere ale clădirii [CP E.04.05-2006 Proiectarea protecţiei termice a clădirilor, anexa D]. The disadvantages of the known method are that reinforcing the masonry, the reinforcement and its placement greatly affect the thermal insulation properties of the wall. This is caused by the high thermal conductivity of the bars, which are placed perpendicular to the wall thickness (the thermal conductivity coefficient of structural steel λ = 58 W/(m °С), which is more than 400 times higher than the thermal conductivity coefficient of structural thermally insulating cellular concrete, widely used in the construction of building envelopes [CP E.04.05-2006 Design of thermal protection of buildings, Annex D].
Plasele intersectate, executate din bare cu diametrul de 3…4 mm, sunt unite prin sudare electrică de contact prin suprapunere, ce provoacă îngroşarea rostului de mortar. Coeficientul de conductibilitate termică a mortarului de zidărie este de aproximativ 4 ori mai înalt decât al betonului celular. Prin urmare, afectarea uniformităţii termice a pereţilor este agravată de îngroşarea fiecărui strat de mortar, în care se amplasează armătura. Semnificativ sporind neuniformitatea termică a peretelui, aceşti factori impun necesitatea termoizolării suplimentare a pereţilor, ceea ce se răsfrânge negativ asupra preţului construcţiei. The intersecting meshes, made of bars with a diameter of 3…4 mm, are joined by electric contact welding by overlapping, which causes the mortar joint to thicken. The thermal conductivity coefficient of masonry mortar is approximately 4 times higher than that of cellular concrete. Therefore, the impact on the thermal uniformity of the walls is aggravated by the thickening of each layer of mortar, in which the reinforcement is placed. Significantly increasing the thermal non-uniformity of the wall, these factors impose the need for additional thermal insulation of the walls, which negatively affects the construction price.
Este cunoscut că armătura sporeşte rezistenţa peretelui în condiţiile ei de întindere prin încovoiere. La această sarcină barele exterioare ale plasei lucrează la întindere, iar cele interioare - la comprimare. Sectoarele plasei amplasate în partea neutră, centrală a peretelui, practic nu suportă sarcini. De aceea construcţiile de armătură cunoscute au un consum sporit de materiale. It is known that reinforcement increases the strength of the wall under its bending tensile conditions. At this load, the outer bars of the mesh work in tension, and the inner ones - in compression. The mesh sectors located in the neutral, central part of the wall practically do not support loads. Therefore, known reinforcement structures have an increased consumption of materials.
Problema pe care o rezolvă invenţia constă în ameliorarea proprietăţilor termoprotectoare ale peretelui, reducerea masei armăturii şi sporirea eficienţei economice. The problem solved by the invention consists in improving the thermal protection properties of the wall, reducing the mass of the reinforcement and increasing economic efficiency.
Problema se soluţionează prin aceea că procedeul de armare orizontală a zidăriei din piatră include utilizarea armăturii executate în formă de plasă cu ochiuri dreptunghiulare şi amplasarea acesteia cu un interval de cel mult 40 cm pe înălţimea zidăriei. Plasa conţine nişte bare, de acelaşi diametru, drepte şi unele îndoite în formă de meandru dreptunghiular, unite între ele, amplasate într-un plan. În fiecare nivel al zidăriei, plasele se amplasează în pereche, cu barele îndoite în interiorul peretelui, iar distanţa de la bara dreaptă până la marginea corespunzătoare a peretelui constituie 1…4 cm. The problem is solved by the fact that the horizontal reinforcement process of stone masonry includes the use of reinforcement made in the form of a mesh with rectangular meshes and its placement with an interval of no more than 40 cm along the height of the masonry. The mesh contains some bars, of the same diameter, straight and some bent in the shape of a rectangular meander, joined together, placed in one plane. In each level of the masonry, the nets are placed in pairs, with the bent bars inside the wall, and the distance from the straight bar to the corresponding edge of the wall is 1…4 cm.
Plasa utilizată poate fi cu barele executate aplatizate, cu raportul grosimii barei la lăţimea ei în limitele 1:2 …1:4. The mesh used can be made with flattened bars, with the ratio of bar thickness to its width within the limits of 1:2...1:4.
Rezultatul tehnic constă în reducerea masei armăturii, ameliorarea proprietăţilor termoizolante ale peretelui, precum şi în sporirea eficienţei economice. The technical result consists in reducing the mass of the reinforcement, improving the thermal insulation properties of the wall, as well as increasing economic efficiency.
Invenţia se explică prin desenele din fig. 1-3, care reprezintă: The invention is explained by the drawings in Fig. 1-3, which represent:
- fig. 1, armătura sudată; - Fig. 1, welded reinforcement;
- fig. 2, secţiunea barelor armăturii după aplatizare; - Fig. 2, section of the reinforcement bars after flattening;
- fig. 3, amplasarea armăturii în perete, vedere de sus. - Fig. 3, placement of the reinforcement in the wall, top view.
Procedeul de armare orizontală a zidăriei din piatră include utilizarea armăturii executate în formă de plasă cu ochiuri dreptunghiulare şi amplasarea acesteia cu un interval de cel mult 40 cm pe înălţimea zidăriei. Plasa conţine nişte bare, de acelaşi diametru, drepte 1 şi unele îndoite 2 în formă de meandru dreptunghiular, unite între ele, amplasate într-un plan. În fiecare nivel al zidăriei, plasele se amplasează în pereche, cu barele îndoite 2 în interiorul peretelui 3, iar distanţa de la bara dreaptă 1 până la marginea corespunzătoare a peretelui 3 constituie 1…4 cm. The horizontal reinforcement process of stone masonry includes the use of reinforcement made in the form of a mesh with rectangular meshes and its placement with an interval of no more than 40 cm along the height of the masonry. The mesh contains some bars of the same diameter, straight 1 and some bent 2 in the form of a rectangular meander, joined together, placed in one plane. In each level of the masonry, the nets are placed in pairs, with the bent bars 2 inside the wall 3, and the distance from the straight bar 1 to the corresponding edge of the wall 3 is 1…4 cm.
Plasa utilizată poate fi cu barele executate aplatizate, cu raportul grosimii barei la lăţimea ei în limitele 1:2 …1:4. The mesh used can be made with flattened bars, with the ratio of bar thickness to its width within the limits of 1:2...1:4.
Procedeul de armare orizontală a zidăriei din piatră se efectuează în modul următor. The horizontal reinforcement process of stone masonry is carried out in the following way.
Barele drepte şi îndoite cu diametrul de 3…4 mm, executate din oţel, strâns se alipesc una de cealaltă pe lungime şi în locurile de contact se unesc între ele prin metode cunoscute, de exemplu prin sudare electrică de contact, formând plasa de armătură. Totodată plasele din aceste bare în fiecare nivel al zidăriei se amplasează în pereche, cu barele îndoite în interiorul peretelui. Straight and bent bars with a diameter of 3…4 mm, made of steel, are tightly attached to each other along the length and in the places of contact are joined together by known methods, for example by electric contact welding, forming the reinforcement mesh. At the same time, the meshes of these bars in each level of the masonry are placed in pairs, with the bent bars inside the wall.
Distanţa de la bara dreaptă a fiecărei armaturi până la marginea corespunzătoare a peretelui trebuie să fie de cel puţin 1 cm şi cel mult 4 cm, deoarece dacă această distanţă va fi mai mică de 1 cm, la acţiunea seismică armătura poate împinge în afară mortarul şi peretele se va deteriora, iar dacă va fi mai mare de 4 cm - va scădea eficienţa de lucru a armăturii din cauza apropierii ei de linia neutră. The distance from the right bar of each reinforcement to the corresponding edge of the wall must be at least 1 cm and at most 4 cm, because if this distance is less than 1 cm, during seismic action the reinforcement may push the mortar out and the wall will be damaged, and if it is greater than 4 cm - the working efficiency of the reinforcement will decrease due to its proximity to the neutral line.
Astfel de amplasare a armăturii face posibilă o legătură mai bună cu peretele şi maxim compensează sarcinile de încovoiere-întindere, care apar în procesul exploatării clădirii. Such placement of the reinforcement enables a better connection with the wall and maximally compensates for the bending-tension loads that occur during the operation of the building.
Executarea barelor îndoite în formă de meandru dreptunghiular, amplasate transversal peretelui, asigură rigiditate sporită, rezistenţă la vibraţii şi capacitatea plasei de armătură de a suporta nu numai sarcini de compresiune, dar şi deformaţii transversale ale betonului. Totodată armătura solicitată are o masă de 3-4 ori mai mică decât armătura din plase intersectate. The execution of bent bars in the shape of a rectangular meander, placed transversely to the wall, ensures increased rigidity, vibration resistance and the ability of the reinforcement mesh to withstand not only compression loads, but also transverse deformations of the concrete. At the same time, the required reinforcement has a mass 3-4 times lower than the reinforcement of intersecting meshes.
Deoarece plasele de armătură, amplasate în perechi, ale fiecărui nivel de zidărie nu sunt unite între ele, se exclude apariţia “punţilor de frig”, ceea ce reduce conductibilitatea termică a peretelui şi sporeşte proprietăţile lui termoizolante. Since the reinforcement meshes, placed in pairs, of each masonry level are not joined together, the appearance of "cold bridges" is excluded, which reduces the thermal conductivity of the wall and increases its thermal insulation properties.
Amplasarea barelor nu prin suprapunere, comparativ cu cea mai apropiată soluţie, dar într-un plan permite de a micşora grosimea stratului de zidărie şi a spori rezistenţa armăturii la sarcini de încovoiere-întindere. Placing the bars not overlapping, compared to the closest solution, but in one plane allows to reduce the thickness of the masonry layer and increase the resistance of the reinforcement to bending-tension loads.
Suplimentar, pentru micşorarea grosimii mortarului de zidărie, armătura, sudată astfel, poate fi aplatizată, de exemplu, prin trecerea ei prin role. Raportul grosimii barei la lăţimea ei, totodată, trebuie să se afle în limitele 1:2 …1:4. Additionally, to reduce the thickness of the masonry mortar, the reinforcement, welded in this way, can be flattened, for example, by passing it through rollers. The ratio of the bar thickness to its width, at the same time, must be within the limits of 1:2 ... 1:4.
Aplatizarea armăturii permite de a o amplasa în rostul de zidărie de o grosime obişnuită, ce de asemenea reduce neuniformitatea termică a peretelui, totodată sporind rezistenţa armăturii la deformarea peretelui în planul armăturii. Flattening the reinforcement allows it to be placed in a masonry joint of a regular thickness, which also reduces the thermal non-uniformity of the wall, while also increasing the resistance of the reinforcement to wall deformation in the plane of the reinforcement.
Astfel, invenţia propusă, complet corespunzând cerinţelor documentaţiei normative, posedă noutate şi eficienţă economică sporită. Thus, the proposed invention, fully complying with the requirements of the normative documentation, possesses novelty and increased economic efficiency.
1. NCM F.03.02-99. Строительные нормы. Каменные конструкции. Конструирование и расчет каменных конструкций, п. 5.2.2.23 1. NCM F.03.02-99. Construction standards. Stone constructions. Construction and calculation of stone constructions, p. 5.2.2.23
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDS20130190A MD764Z (en) | 2013-11-08 | 2013-11-08 | Process for horizontal reinforcement of stone masonry |
| PCT/MD2014/000003 WO2015069094A1 (en) | 2013-11-08 | 2014-11-05 | Reinforcing assembly for horizontal reinforcement of stone masonry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDS20130190A MD764Z (en) | 2013-11-08 | 2013-11-08 | Process for horizontal reinforcement of stone masonry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD764Y MD764Y (en) | 2014-04-30 |
| MD764Z true MD764Z (en) | 2014-11-30 |
Family
ID=50685419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDS20130190A MD764Z (en) | 2013-11-08 | 2013-11-08 | Process for horizontal reinforcement of stone masonry |
Country Status (2)
| Country | Link |
|---|---|
| MD (1) | MD764Z (en) |
| WO (1) | WO2015069094A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD1038Y (en) * | 2015-12-22 | 2016-05-31 | Николай БОГУСЛАВСКИЙ | Armature for horizontal reinforcement of stone masonry, process for manufacturing the armature for horizontal reinforcement of stone masonry and process for horizontal reinforcement of stone masonry |
| MD4558C1 (en) * | 2017-01-27 | 2018-10-31 | TS-Rebar Holding LLC | Armature for horizontal reinforcement of stone masonry and process for manufacturing thereof (embodiments) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2229570C2 (en) * | 2002-04-05 | 2004-05-27 | Мустафин Шамиль Джаватович | Method of reinforced wall structure production |
| RU83265U1 (en) * | 2009-01-11 | 2009-05-27 | Лёма Хамидович Базаев | REINFORCEMENT FRAME |
| RU2361983C1 (en) * | 2008-01-29 | 2009-07-20 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный университет технологии и дизайна" | Wire mesh for brick structures |
| RU103370U1 (en) * | 2010-07-19 | 2011-04-10 | Александр Львович Рябинин | REINFORCED STRUCTURE FROM BRICK OR BUILDING BLOCKS |
| MD600Y (en) * | 2012-10-01 | 2013-02-28 | Nicolai Boguslavschi | Reinforcement for reinforced concrete |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3183628A (en) * | 1962-10-12 | 1965-05-18 | Lox All Sales Corp | Masonry wall reinforcing means |
| BE795119A (en) * | 1973-02-08 | 1973-08-08 | Bekaert Sa Nv | WAPENINGSELEMENT VOOR METSELWERK EN WERKWIJZE VOOR HET VERVAARDIGEN VAN EEN DERGELIJK WAPENINGSELEMENT |
| RU2286429C1 (en) * | 2005-06-14 | 2006-10-27 | Государственное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" | Tie member for light-weight masonry |
| RU2430221C2 (en) * | 2009-06-04 | 2011-09-27 | Общество с ограниченной ответственностью "Коммерческое научно-производственное объединение "Уральская армирующая компания" | Reinforcement net |
-
2013
- 2013-11-08 MD MDS20130190A patent/MD764Z/en not_active IP Right Cessation
-
2014
- 2014-11-05 WO PCT/MD2014/000003 patent/WO2015069094A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2229570C2 (en) * | 2002-04-05 | 2004-05-27 | Мустафин Шамиль Джаватович | Method of reinforced wall structure production |
| RU2361983C1 (en) * | 2008-01-29 | 2009-07-20 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный университет технологии и дизайна" | Wire mesh for brick structures |
| RU83265U1 (en) * | 2009-01-11 | 2009-05-27 | Лёма Хамидович Базаев | REINFORCEMENT FRAME |
| RU103370U1 (en) * | 2010-07-19 | 2011-04-10 | Александр Львович Рябинин | REINFORCED STRUCTURE FROM BRICK OR BUILDING BLOCKS |
| MD600Y (en) * | 2012-10-01 | 2013-02-28 | Nicolai Boguslavschi | Reinforcement for reinforced concrete |
Non-Patent Citations (1)
| Title |
|---|
| NCM F.03.02-99. Строительные нормы. Каменные конструкции. Конструирование и расчет каменных конструкций, п. 5.2.2.23 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015069094A1 (en) | 2015-05-14 |
| MD764Y (en) | 2014-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103938791A (en) | Novel prefabricated wall plate and building external wall assembled by same | |
| CN204126053U (en) | Large span prestressed concrete T plate | |
| MX345973B (en) | Masonry with steel reinforcement strip having spacers. | |
| CN108240038B (en) | Ultra-large plane concrete structure based on multistage grid type post-cast strip and construction method | |
| CN203603271U (en) | Superimposed concrete slab joint seam structure | |
| MD764Z (en) | Process for horizontal reinforcement of stone masonry | |
| CN104234185B (en) | Wire cage frame hollow concrete framework structure and assembling method thereof | |
| CN105887660A (en) | Perforated plate connecting piece with boot-shaped slots, steel beam and methods | |
| CN206495409U (en) | A kind of fireproof heat insulating Acoustic barrier plate | |
| CN104264897A (en) | Superposed beam and board with alternated teeth | |
| CN203742020U (en) | Novel frame wall structure | |
| CN206174187U (en) | Rammed -earth wall body of structure reinforcing | |
| RU103370U1 (en) | REINFORCED STRUCTURE FROM BRICK OR BUILDING BLOCKS | |
| CN105604213B (en) | The shockproof noise reduction beam column of steel structure steel mesh wall construction technology of damping | |
| CN205330155U (en) | Exempt from form removal fire prevention heat preservation template | |
| CN204571018U (en) | Band groove exempts to tear steel wire net rack heat insulation formwork open | |
| CN202767353U (en) | Light rock wool board with steel wire mesh frames and rock wool core board wall | |
| CN208309868U (en) | A kind of buckling restrained brace device | |
| CN208308706U (en) | The novel earthquake-proof dry wall block of assembled architecture | |
| CN215759793U (en) | GSY external wall panel and constructional column connecting structure | |
| RU120439U1 (en) | COMPOSITE CELLULAR CONCRETE BEAM WITH INTEGRATED REINFORCEMENT | |
| CN220036166U (en) | Auxiliary fixture for binding reinforcing steel bar mesh | |
| RU204050U1 (en) | Masonry wire fittings | |
| CN203066279U (en) | Self-limiting light-weight steel wire net rack sandwich heat-insulating board | |
| CN217353044U (en) | Seam supporting net and prefabricated wallboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG9Y | Short term patent issued | ||
| KA4Y | Short-term patent lapsed due to non-payment of fees (with right of restoration) | ||
| MM4A | Patent for invention definitely lapsed due to non-payment of fees |