WO2016086948A1 - Dalles alvéolées modifiées - Google Patents

Dalles alvéolées modifiées Download PDF

Info

Publication number
WO2016086948A1
WO2016086948A1 PCT/EG2014/000037 EG2014000037W WO2016086948A1 WO 2016086948 A1 WO2016086948 A1 WO 2016086948A1 EG 2014000037 W EG2014000037 W EG 2014000037W WO 2016086948 A1 WO2016086948 A1 WO 2016086948A1
Authority
WO
WIPO (PCT)
Prior art keywords
slab
segments
concrete
longitudinal
reinforcements
Prior art date
Application number
PCT/EG2014/000037
Other languages
English (en)
Inventor
AL-Tuhami AbuZeid AL-TUHAMI
Original Assignee
Al-Tuhami Al-Tuhami Abuzeid
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 Al-Tuhami Al-Tuhami Abuzeid filed Critical Al-Tuhami Al-Tuhami Abuzeid
Priority to PCT/EG2014/000037 priority Critical patent/WO2016086948A1/fr
Publication of WO2016086948A1 publication Critical patent/WO2016086948A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/326—Floor structures wholly cast in situ with or without form units or reinforcements with hollow filling elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
    • E04C2/2885—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material with the insulating material being completely surrounded by, or embedded in, a stone-like material, e.g. the insulating material being discontinuous
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E04B1/043—Connections specially adapted therefor
    • E04B1/046—Connections specially adapted therefor using reinforcement loops protruding from the elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E04B1/06—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material the elements being prestressed

Definitions

  • Hollow core slabs are commonly used in numerous engineering industries applications.
  • a hollow core slab is a precast concrete member reinforced with prestressing steel strands.
  • the known slab is rectangular in cross section with continuous voids, at its central depth, provided to reduce weight, costs and for electrical and mechanical runs.
  • hollow-core slabs are also have applications as wall panels, sound barriers, spandrel members and bridge deck units. Commonly, the slabs are between 150 mm and 600 mm in depth but deeper slabs are being considered.
  • the voids or cores in the cross section of the slabs are commonly circular, particularly in the shallow slabs, with deeper slabs using oval or square cores.
  • the voided percentage of the unit cross section is commonly in the range of 40% to 60%.
  • hollow-core slabs are supported at their ends by beams made of steel or reinforced concrete or by a load-bearing wall structure so that the lower surface of the end of the slab rests against the surface of the supporting structure.
  • a hollow core slab is cast on a prestressing bed of length depending on the production system to be used.
  • the bed is usually fixed but can be moveable and is usually in the order of 50 to 200 meters in length.
  • the casting line is topped with a steel pallet upon which the product is cast and beneath which, commonly, pipes to carry steam, hot water or hot oil are provided to assist the curing of the concrete unit once it is made. Other means of curing may also be provided.
  • the concrete has been a conventional mix and has been compacted by vibration.
  • Hollow core slabs are manufactured using four main methods: extrusion; slip-forming; shear compaction; and hydraulic extruder. However as the slabs were developed to be deeper and the spans therefore became longer a number of disadvantages became apparent and which either limit further development, or make the slab inappropriate for its intended application.
  • the precast concrete sandwich panels have all of the desirable characteristics of a normal precast concrete wall panel.
  • the insulation provides superior energy performance, moisture protection, and being light weight.
  • the hard surface on the inside and outside of the sandwich panel provides resistance to forklift damage, theft, vandalism and a finished product requiring no further treatment if desired.
  • the concrete sandwich panel wall is composed of two layers of concrete separated by a continuous layer of insulation. The concrete layers are connected together through members that pass through the insulation blocks into the concrete layers and transmit forces between the two layers. The forces are transmitted between the two concrete layers by metal trusses or ties.
  • These trusses or ties are capable of transmitting forces in a number of different directions such as perpendicular to the planes of the concrete layers or at angles to those planes but in the plane of the metal trusses.
  • the metal ties transfers part of the heat from one concrete layer to the other through the metal.
  • Glass fiber-reinforced polymer ties are developed to produce ties with good thermal properties.
  • Hollow core concrete floors are designed as one-way simply supported slab systems, with the units sitting side-by-side, spanning between supporting walls or beams.
  • Hollow core slab has only the prestressing reinforcement strands at the bottom. Due to release the prestresseing or cutting the slabs with the required lengths, camber is occurring. Camber is the upward deflection created by the pre-stressed forces in the strands located below the center of gravity. Camber is required to resist design loads and in the hollow-core plank it compresses the bottom more than the top. Due to this phenomenon, tensile stresses occurred in the upper slab fibers. Possibility of adding upper longitudinal prestressing strand reinforcements are used to prevent tensile cracks. These upper reinforcements are used also in cantilever parts or against loads caused by handling.
  • reinforced concrete slab topping is casting for the following reasons:
  • the suggested slab system is reinforced with longitudinal prestressing tendons and/or traditional reinforcement.
  • It may use the traditional manufacturing line of hollow core slabs, which include the casting bed and pre-stressed system.
  • the bed may be fixed or movable and the line length are in the order of 50 to 200 meters.
  • the main function of the upper concrete layer in the hollow core slab is to preserve the size and shape of the continuous hole during casting stages and to produce a durable surface for working loads.
  • it is usually cast-in-situ reinforced concrete topping.
  • This topping layer is structurally considered non-composite with upper concrete fiber of hollow core slab.
  • each slab panel comprises of longitudinal, transverse ribs and lower thin slabs layer, all of reinforced concrete.
  • a fully composite layer is cast-in-situ, which overcome the separation and de-bonding problems that are usually occurring between the topping layer and the upper fiber of the hollow core slab during higher loading conditions.
  • the slab panel ends are prepared for connections capable of withstanding negative bending moment and lateral loads.
  • the technique presented in this invention can be used for produce structural precast wall as enhancing the structural behavior of the traditional sandwich panel bearing walls.
  • the technique produce a complete interaction wall panel in the two directions, by using fully interacting concrete ribs along with the traditional two parallel concrete layers. The full interaction is assured through presenting a different system of vertical and horizontal elements all connected together with concrete layers allowing for the loads and consequently straining actions to be distributed in two directions. This is a superior advantage over the sandwich panel technique in which single blocks are connected by horizontal or inclined ties or trusses only. In the present work, the connection between the two concrete layers is done by reinforced concrete ribs.
  • a methods and a technique for producing precast pre- stressed reinforced concrete hollow block, slab and wall segments assembled together to form two way slab and two way wall by post tension and means for assembling them to form a building comprising:
  • Fig. 1 shows arrange the molds or lightweight filling materials and internally threaded sleeves on the casting bed
  • Fig. 2 shows arrange the rib reinforcements with the designed panels' dimension
  • Fig. 3 shows examples of rib reinforcement shapes, longitudinal bars and stirrups and truss shape reinforcement
  • Fig. 4 shows longitudinal and transverse ribs reinforcements represented in truss shape and the molds or filler materials
  • Fig. 5 shows panel skeleton without concrete including molds or filler materials, rib
  • Fig. 6 shows inverted casted panel strip with protruded reinforcements and cross sleeves
  • Fig. 7 shows a casted panel in the right orientation showing the hollow blocks between ribs
  • Fig. 8 shows the hollow blocks covered by special casing of casted panel
  • Fig. 9 shows three casted panels stressed horizontally by post tension forces F;
  • Fig. 10 shows inserting part of each threaded bolts onto the internal threaded sleeves
  • Fig. 11 shows placing the bottom wire mesh
  • Fig. 12 shows arranging and fixing the rib reinforcements, longitudinal reinforcements and stirrups with the required panels' dimension
  • Fig. 13 shows simplistic view of vibrator loading mold after molded the first type panel (the reinforcements were covered by concrete) and moved to the next one;
  • Fig. 14 shows a part of the second panel type not casted and the other is casted to show the panel reinforcement details, (in this type, the upper parts of the rib reinforcement not covered by concrete);
  • Figs. 15a illustrates couplers connection 42 fixed the rib reinforcements inside the casted slab panels 9;
  • Fig. 15b illustrates the couplers connection 42 outside the casted slab panels 9 of the
  • Fig. 15c shows isometric view of additional reinforcements inserted and attached in-situ with upper rib reinforcements that not covered by concrete.
  • Fig. 16a shows arranging the longitudinal and cross ribs reinforcement and attaching with the lower side wire mesh of wall segment;
  • Fig. 16b shows placing light weight insulating filling material blocks in between the ribs;
  • Fig. 16c shows attaching the other side wire mesh with the other side of ribs reinforcement;
  • Fig. 16d shows casted panel after fresh concrete poured around light weight insulating filling out all the available casting volume;
  • Fig. 17 shows isometric view showing the details of wall segment during assembly the figure shows also the tendons that will use for horizontal in-plane stressing the panels;
  • Fig. 18a shows exploded isometric view of three perpendicular walls and reinforcements of collecting column
  • Fig. 18b shows isometric view of assembled three perpendicular walls after cast-in-situ the collecting column
  • Fig. 18c shows sectional plan of three perpendicular walls while existence of temporary angle and plates mold
  • Fig. 18d shows sectional plan of three perpendicular walls after casting and removing the temporary angle and plates mold
  • Fig. 19a shows isometric view of wall and slab segments during assembly, the figure show also temporary angles used as connection of wall-slab and for lifting the slab segment while casting the topping slab layer and collecting beam;
  • Fig. 19b shows sectional elevation of the slab wall connection showing the collecting beam
  • Fig. 20a shows connection of opposite slab segments together using cast-in-situ beam and topping reinforced concrete layer after supporting the slab segments using temporary formwork.
  • Fig. 20b shows the assembled slab segments and casted in-situ collected beam and topping layer after removing the temporary formwork
  • Fig. 20c shows connection of opposite slab segments together using steel beam and cast-in- situ topping reinforced concrete layer
  • Fig. 20d shows isometric views of the connection of opposite slab segments placed in design sequence and rested on composite steel beam that fixed between two columns.
  • Fig. 20e shows isometric views of the connection of opposite slab segments placed in design sequence and rested on cast-in-situ collecting concrete beam that transmit the load from slab to the columns.
  • Fig. 21 shows isometric view of assembled hollow block panels with designed dimensions and reinforcements used as raft foundation.
  • Fig. 22 shows isometric view of assembled hollow block panels with designed dimensions and reinforcements used as retaining wall.
  • the first manufacturing method (Inverted panel)
  • Fig. 1 illustrates also, a set of internally threaded sleeves 35, are installed at the intersections places of the longitudinal and transverse ribs. These sleeves are installed and affixed connecting with moulds first.
  • Fig 5 illustrates also a wire mish 3 which arranged and affixed with the rib reinforcements.
  • Each cross-rib is provided with a previously prepared sleeve pipes with special path.
  • Fig. 6 shows a precast slab strips (segments) 9 assembled at the building construction site by post tension.
  • Fig 9 illustrate, three slab segments 9 during assembling by stressing tendons 32 that pass through sleeves 22 which were installed earlier in the cross ribs and fixed by prestressing fixing accessories 21.
  • Fig. 7 illustrates the casted panel in the right direction showing the hollow blocks 6 between ribs, threaded sleeves 35 and protruded reinforcement parts 7.
  • an apparatus is used to form and cast the precast prestressed hollow block panels.
  • the apparatus would comprise outer mold and vibrator loading mould.
  • the outer surrounding mold is opened at the top and at the bottom and set the outer frame of the panef s area.
  • the mold is freely rests on a casting bed, which acts as bottom wall for the mold.
  • the function of the vibrator loading mold is to form hollow block spaces, concrete ribs and underneath concrete layer with well homogeneous consistency concrete. It should be noted that, the vibrator loading mould can prepared do the function of the two molds.
  • the mold has two longitudinal sides and two transverse sides as shown in Fig.13.
  • the transverse sides may provide with a plurality of holes 36 used for passing the prestressing strands 16 as shown in Fig. 5 that describe the first manufacturing method, then insert the prestressing strands or wires 16 and tension it.
  • the result is a strip slab segment skeleton without concrete.
  • the electrical, air condition and needed connections are installed within the skeleton. These installations are placed at the required positions.
  • Each cross-rib is provided with a previously prepared sleeve pipes with special path to allow for stressing the slab panels together by strands that pass through the prepared sleeves by post tension in- situ.
  • the position of the vibrator loading mold 37 is adapted above the panel area, then compress the green concrete mix within the outer surrounding mold to form hollow block spaces 6, concrete ribs 1 and underneath concrete layer, Fig. 13.
  • the vibrator loading mold 37 is then extracted upward and moves it to form the next panel on the casting line (the number 38 symbolizes the movement direction). It should be mentioned that, the amount of concrete adjusted to produce incomplete panel thickness as shown in Fig. 13. Moreover, the upper parts of rib reinforcements may not covered by concrete as shown in Fig. 14. This will help for produce fully composite action with the in-situ reinforced concrete topping layer as well as connection capable of carrying negative bending moment.
  • Fig. 13 illustrates the first panel type.
  • the rib reinforcements are covered by concrete and the product is a panel like that produced by the first method without the permanent mold or filling materials 6 in Fig. 1.
  • the upper parts of rib reinforcements aren't covered by concrete as shown in Fig. 14.
  • the most important advantages of the second type shown in Figure 14 are the fully composite action between the precast panel and the topping reinforced concrete cast-in-situ layer and making strong connections capable of withstanding the required negative bending moments.
  • This product is a precast slab strips (segments) which will assemble at the building construction site by post tension as shown in Fig. 6. This is will done by stressing tendons that pass through sleeves which were installed earlier in the cross ribs.
  • the non-covered reinforcements will attached with the reinforcement mesh of cast-in-situ concrete topping which provide fully composite action between the said precast the said hollow block slab segments and the topping reinforced concrete cast-in-situ layer and making strong connections capable of withstanding the required negative bending moments.
  • the fully composite action provided by this type is contrary to what is happening between hollow core slab and the cast-in-situ topping layer.
  • Figs. 15 illustrate the proposed connection for the two casted slab strip panel types.
  • Fig. 15b illustrates the couplers connection 42 outside the casted slab panels 9 of the protruded parts 7. While Fig. 15a illustrate couplers connection 42 fixed the rib reinforcements inside the casted slab panels 9.
  • the numeral 43 represent the connected reinforcement bars between two casted panels.
  • Fig. 15c shows isometric view of additional reinforcements 44 inserted and attached in-situ with upper rib reinforcements 25 that not covered by concrete of the two precast panels 9.
  • the technique presented in this invention can be used for produce structural precast wall as enhancing the structural behavior of traditional sandwich panel bearing walls.
  • This will present a fully composite interaction wall panel in the two directions using longitudinal and transverse concrete ribs along with the two parallel concrete layers.
  • One of the main advantages provided by the suggested technique is the possibility of the production of the wall panels as fully precast concrete panels.
  • the disadvantages of concrete ribs which may cause significant reduction in effective thermal resistance of the panel through thermal bridging could be reduced through technologies of insulating paints.
  • Fig. 16a there is shown arrange the longitudinal and cross ribs reinforcement 2 and attaching with the lower side wire mesh 3 of wall segment.
  • Fig. 16b placing the foam (polystyrene) or filler blocks material 6, in place between the ribs, the Figure show also that the longitudinal reinforcement of the ribs would have protruded parts 7 outside the wall panel to be used for assembling the reinforced concrete walls with other walls or slabs in the construction site.
  • Fig. 16c placing the other reinforcement mesh 4 and attaching or fixing it with the other side of the rib reinforcement.
  • the result is a wall skeleton without concrete.
  • the electrical, water and drainage connections are installed within the wall skeleton. These installations are placed at the required positions. Openings, like windows or doors are possible in such case through, leaving on these zones open in the prepared molds, while arranging ribs around such openings.
  • the wall skeleton is placed horizontally or slightly tilted downward in the casting mold. The slight tilt will allow the fresh concrete to flow around the filling material filling out all the available casting volume.
  • Such high slump concrete containing small size aggregate is suitable to the small thickness of the two concrete layers and the ribs. It should be noted that, the steel reinforcement should placed away from the mold to keep concrete thickness.
  • Fig. 17 illustrates the details of three precast panel strips 8 including the protruded parts 7 and 15 of the rib reinforcements, angles 11 used as a temporary or permanent support for supporting and connecting slab-wall together and grooves used for temporary or permanent fixing angles.
  • the wall strip panels 11 collected together horizontally by stressing tendons 16 pass through sleeves that were installed earlier in the cross ribs. Every two angles 11 back to back placed in grooves 19 are fixed together sandwiched the wall between them. These angles are used as temporary or permanent support until the slab strips assembly completed and casting the collecting ribs between walls and slabs. Another function of angles 11 is to help for connecting slabs and walls together.
  • Fig. 18a shows exploded view of three perpendicular wall panels and collecting rib reinforcements. After installing the wall strips in place and assembled it by post tension, the longitudinal reinforcements 10 of the vertical collecting column and stirrups 5 are inserted and the protruded parts 15 of the end wall strips are attached together with the vertical reinforcements 10.
  • Fig. 18b illustrates the cast-in-situ collecting reinforced concrete rib 10 for three single walls 8.
  • Fig. 18c illustrates sectional plan of three perpendicular walls while existence of temporary angles and plates 11 used as a mold for cast-in-situ collecting column 12 that collect the three perpendicular wall panels 8.
  • Fig. 18d illustrates sectional plan of three perpendicular walls after casting the collecting column 12 and removing the temporary angle and plates 11 that used as a mold.
  • Fig. 19a illustrates exploded view of three wall panels 8 and three slab panels segments 9 and showing the temporary angles 11 used as formwork for assembling the panel segments.
  • Fig. 19b illustrates section at wall slab connection while existence of temporary angles and plates 11 used as a mold in order to cast-in-situ the collecting reinforced concrete slab-wall beam 30.
  • the upper reinforcement placed in-situ 3 the upper wire mesh of multiple slabs 28 and the temporary angles 11 used as a mold while cast the collecting beam.
  • Fig. 20a illustrates connection of slab segments 9 together using cast-in-situ beam 27.
  • the formwork 45 used as a temporary support for slab segments 9 and until cast-in-situ collecting rib 27 until the collecting rib 27 reach to the designed strength.
  • Upper longitudinal reinforcements 44 inserted through the reinforcement part of stirrups 5 that has not been nd reinforcements used as a raft foundation. The columns created at the intersection of cast- in-situ collecting ribs27.
  • Fig. 22 shows isometric view of assembled hollow block panels with designed dimensions and reinforcements used as a retaining wall.

Abstract

L'invention porte sur un procédé et une technique de production de segments de dalle et de mur à blocs creux en béton armé préfabriqués et précontraints assemblés ensemble pour former des dalles à deux sens et des murs à deux sens et des moyens pour les assembler pour former un bâtiment. Chaque segment de dalle est composé de nervures longitudinales et transversales et d'une couche inférieure de dalles minces, toutes en béton armé. Les espaces entre les nervures et la couche de béton inférieure sont maintenus avec leurs dimensions durant tout le processus de construction. Une couche de dalles en béton armé supérieure est coulée in situ par dessus les panneaux de dalles rassemblés. Chaque panneau de segment de mur est constitué de blocs de matériau de remplissage de faible poids, de deux couches de béton armé parallèles et de nervures en béton armé longitudinales et transversales. Le renfort longitudinal de nervures des nervures circonférentielles fait saille légèrement à l'extérieur du panneau de mur ou de dalle ou est préparé pour être utilisé pour permettre de fixer les nervures en béton armé rassemblées aux dalles et/ou au mur.
PCT/EG2014/000037 2014-12-03 2014-12-03 Dalles alvéolées modifiées WO2016086948A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EG2014/000037 WO2016086948A1 (fr) 2014-12-03 2014-12-03 Dalles alvéolées modifiées

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EG2014/000037 WO2016086948A1 (fr) 2014-12-03 2014-12-03 Dalles alvéolées modifiées

Publications (1)

Publication Number Publication Date
WO2016086948A1 true WO2016086948A1 (fr) 2016-06-09

Family

ID=56091054

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EG2014/000037 WO2016086948A1 (fr) 2014-12-03 2014-12-03 Dalles alvéolées modifiées

Country Status (1)

Country Link
WO (1) WO2016086948A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106760051A (zh) * 2016-12-07 2017-05-31 郭猛 拉压型密肋复合墙
CN107165280A (zh) * 2017-06-09 2017-09-15 中铁十六局集团第四工程有限公司 一种大跨度空腹夹层板结构模板支撑系统及施工方法
CN110258928A (zh) * 2019-06-26 2019-09-20 中国长江三峡集团有限公司 一种螺母柱预应力钢筋装置的安装方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495367A (en) * 1965-12-21 1970-02-17 Hideya Kobayashi Precast lightweight reinforced concrete plank
US4080765A (en) * 1975-12-19 1978-03-28 Edilstart S.R.L. Building structure made of preformed reinforced elements
US5119606A (en) * 1989-06-22 1992-06-09 Graham Tom S Insulated concrete wall panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495367A (en) * 1965-12-21 1970-02-17 Hideya Kobayashi Precast lightweight reinforced concrete plank
US4080765A (en) * 1975-12-19 1978-03-28 Edilstart S.R.L. Building structure made of preformed reinforced elements
US5119606A (en) * 1989-06-22 1992-06-09 Graham Tom S Insulated concrete wall panel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106760051A (zh) * 2016-12-07 2017-05-31 郭猛 拉压型密肋复合墙
CN106760051B (zh) * 2016-12-07 2019-02-19 郭猛 拉压型密肋复合墙
CN107165280A (zh) * 2017-06-09 2017-09-15 中铁十六局集团第四工程有限公司 一种大跨度空腹夹层板结构模板支撑系统及施工方法
CN110258928A (zh) * 2019-06-26 2019-09-20 中国长江三峡集团有限公司 一种螺母柱预应力钢筋装置的安装方法

Similar Documents

Publication Publication Date Title
EP2848750B1 (fr) Procédé pour couler sur site, avec un coffrage suspendu, une plateforme en béton armé à treillis métallique en fils d'acier ligaturés,
US5678378A (en) Joist for use in a composite building system
US9988775B1 (en) Concrete i-beam for bridge construction
US4974381A (en) Tie anchor and method for manufacturing insulated concrete sandwich panels
US6244008B1 (en) Lightweight floor panel
EP2021555B1 (fr) Poutre en beton
US6036906A (en) Method for manufacturing an improved prestressed concrete joist
US20110011018A1 (en) Modular construction mold apparatus and method for constructing concrete buildings and structures
US5373675A (en) Composite building system and method of manufacturing same and components therefor
KR20060052720A (ko) 복합 내력 벽-패널들과 바닥들의 장 경간 자립형 건물의건축구조
WO1998051883A1 (fr) Colonne composite en acier/beton
US20080092466A1 (en) Precast Concrete I-Beam Deck with Pre-Stressed Wire Strands as Reinforcing Material
WO2016086948A1 (fr) Dalles alvéolées modifiées
US5146726A (en) Composite building system and method of manufacturing same and components therefor
RU2638597C2 (ru) Система и способ для двухосной сборной легковесной бетонной плиты
RU84881U1 (ru) Каркас зданий и сооружений
EA006820B1 (ru) Сборно-монолитный железобетонный каркас многоэтажного здания
RU2323307C2 (ru) Способ изготовления двусторонней взаимонапряженной железобетонной стеновой конструкции с пустотами для утепления
RU2198270C1 (ru) Способ возведения, восстановления или реконструкции зданий, сооружений (варианты)
RU2453662C1 (ru) Сборно-монолитный каркас здания
JPS6325144B2 (fr)
CN219386814U (zh) 一种装配整体式空心楼板
CN211368416U (zh) 一种预制桥面板用浇筑模板及桥面板
CN116838012A (zh) 预应力复合配筋叠合板组合楼盖及制造方法
RU2184816C1 (ru) Сборно-монолитный железобетонный каркас многоэтажного здания "казань-1000"

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14907574

Country of ref document: EP

Kind code of ref document: A1

DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14907574

Country of ref document: EP

Kind code of ref document: A1