CN100381665C - In-situ deposited steel reinforced concrete hollow roof and its construction process - Google Patents

In-situ deposited steel reinforced concrete hollow roof and its construction process Download PDF

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Publication number
CN100381665C
CN100381665C CNB001132881A CN00113288A CN100381665C CN 100381665 C CN100381665 C CN 100381665C CN B001132881 A CNB001132881 A CN B001132881A CN 00113288 A CN00113288 A CN 00113288A CN 100381665 C CN100381665 C CN 100381665C
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CN
China
Prior art keywords
steel
reinforced concrete
reinforcing bar
concrete
situ deposited
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CNB001132881A
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Chinese (zh)
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CN1310276A (en
Inventor
邱则有
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邱则有
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Priority to CNB001132881A priority Critical patent/CN100381665C/en
Publication of CN1310276A publication Critical patent/CN1310276A/en
Application granted granted Critical
Publication of CN100381665C publication Critical patent/CN100381665C/en

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Abstract

The present invention relates to a steel skeleton non core-drawn and hole-formed cast-in-situ steel reinforcement concrete hollow floor and a construction method thereof. The hollow floor is composed of steel reinforcements, concrete, hard cavity thin-walled members embedded in the steel reinforcements and the concrete, a steel skeleton, etc. The construction method comprises the following steps: the steel skeleton is arranged, namely that both ends of the steel skeleton are placed on a bearing wall (angle); a mould is erected, and a profiled steel sheet or a removable mould plate are paved; the steel reinforcements are paved and are pre-buried in the concrete; the cavity hard thin-walled members are placed; the concrete is cast and vibrated, the concrete is maintained, and the removable mould plate is removed. The present invention has the advantages of high bearing capability, high shock resistance, easy construction, etc., and is especially suitable for high-rise buildings and cast-in-situ floors with large span structures.

Description

In-situ deposited steel reinforced concrete hollow roof and job practices thereof

The invention belongs to a kind of steel bar reinforced hollow concrete roof cast-in-situs, be specially adapted to the cast-in-situ floor of highrise building and longspan structure.

At present, steel bar reinforced hollow concrete roof cast-in-situs mostly adopts ordinary reinforced concrete structure and prestressed reinforced concrete construction, and its supporting capacity, anti-seismic performance, difficulty of construction more and more can not satisfy the requirement of highrise building and longspan structure development.As the patent No. is that ZL99232922.1, name are called " thin-wall hollow roof in-situ deposited with concrete " utility model patent, and it comprises steel bar concrete, and disposable internal mold pore-forming cavity is contained in steel bar concrete inside.This superstructure has easy construction, from heavy and light, save characteristics such as material, defening effect are good, but its supporting capacity, anti-seismic performance are relatively poor relatively, therefore, develop a kind of novel hollow building cover and job practices thereof and have been urgent need.

Purpose of the present invention just provides that a kind of supporting capacity is big, anti-seismic performance good and the in-situ deposited steel reinforced concrete hollow roof of easy construction.

In-situ deposited steel reinforced concrete hollow roof of the present invention comprises steel bar concrete, and disposable internal mold pore-forming cavity is contained in steel bar concrete inside, it is characterized in that reinforcing bar is arranged in the superstructure.

The job practices of in-situ deposited steel reinforced concrete hollow roof of the present invention is:

(1) reinforcing bar is installed, its two ends are placed on the load bearing wall (angle);

(2) formwork is laid profiled sheet or removable template, and is when laying profiled sheet as template, that profiled sheet and reinforcing bar is affixed;

(3) lay reinforcing bar, install in the concrete pre-buried;

(4) lay the cavity hard thin-wall members, and with itself and reinforcing bar stationary positioned;

(5) pour into a mould vibrate concrete, maintenance, the removable template of dismounting.

The present invention has advantages such as supporting capacity is big, anti-seismic performance good, easy construction owing to adopted reinforcing bar and non-core-drawing pore-creating structure, is specially adapted to the hollow building cover of highrise building and longspan structure.

The invention will be further described below in conjunction with description of drawings:

Fig. 1 is the perspective view of the embodiment of the invention one.

Fig. 2 is the perspective view of the embodiment of the invention two.

Fig. 3 is the perspective view of the embodiment of the invention three.

Fig. 4 is the perspective view of the embodiment of the invention four.

Shown in Fig. 1-4, the present invention is made up of reinforcing bar 1, concrete 2, disposable internal mold 3, reinforcing bar 4.Among the embodiment that Fig. 2 provides, described reinforcing bar 4 places under the reinforced concrete hollow floorslab by profiled sheet 5, forms bright beam hollow building cover.The embodiment that Fig. 1,3,4 provides is in the described reinforcing bar 4 embedded reinforcement concretes.Among Fig. 1 reinforcing bar 4 vertically with the geometric center lines of disposable internal mold 3 in the same way.Reinforcing bar 4 is vertically vertical with the geometric midline of disposable internal mold 3 among Fig. 3,4.Among the embodiment of Fig. 4, have profiled sheet 5 under its hollow building cover, this structure is convenient to construction and is made, the profiled sheet 5 permanent reservations that formwork is used.

In the above-described embodiments, reinforcing bar 4 all can adopt typing L, I, [, type shaped steel, also can adopt the non-type deformed steel or with steel material welding, the special-purpose shaped steel that is rolled into.In addition, described disposable internal mold 3 can be horniness thin-walled tube or hard thin-wall tube or hard thin-wall box or other cavity forming low-density member.

Claims (7)

1. an in-situ deposited steel reinforced concrete hollow roof comprises steel bar concrete, and disposable internal mold pore-forming cavity is contained in steel bar concrete inside, it is characterized in that superstructure contains reinforcing bar.
2. in-situ deposited steel reinforced concrete hollow roof according to claim 1 is characterized in that described reinforcing bar places under the reinforced concrete hollow floorslab by profiled sheet, forms bright beam hollow building cover.
3. in-situ deposited steel reinforced concrete hollow roof according to claim 1 is characterized in that described reinforcing bar is embedded in the steel bar concrete, and forming dark beam or title does not have the beam hollow building cover.
4. in-situ deposited steel reinforced concrete hollow roof according to claim 3 is characterized in that having profiled sheet under the described hollow building cover.
5. according to claim 1 or 2 or 3 or 4 described in-situ deposited steel reinforced concrete hollow roofs, it is characterized in that described reinforcing bar for L, the I of typing, [, shape of the mouth as one speaks shaped steel or for the non-type deformed steel or for welding of steel material or the special-purpose shaped steel that is rolled into.
6. in-situ deposited steel reinforced concrete hollow roof according to claim 5 is characterized in that described disposable internal mold is horniness thin-walled tube or hard thin-wall tube or hard thin-wall box or other cavity shape low-density member.
7. the job practices of an in-situ deposited steel reinforced concrete hollow roof is characterized in that:
(1) reinforcing bar is installed, its two ends are placed on load bearing wall or the angle;
(2) formwork is laid profiled sheet or removable template, and is when laying profiled sheet as template, that profiled sheet and reinforcing bar is affixed;
(3) lay reinforcing bar, install in the concrete pre-buried;
(4) lay the cavity hard thin-wall members, and with itself and reinforcing bar stationary positioned;
(5) pour into a mould vibrate concrete, maintenance, the removable template of dismounting.
CNB001132881A 2000-02-25 2000-02-25 In-situ deposited steel reinforced concrete hollow roof and its construction process CN100381665C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB001132881A CN100381665C (en) 2000-02-25 2000-02-25 In-situ deposited steel reinforced concrete hollow roof and its construction process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB001132881A CN100381665C (en) 2000-02-25 2000-02-25 In-situ deposited steel reinforced concrete hollow roof and its construction process

Publications (2)

Publication Number Publication Date
CN1310276A CN1310276A (en) 2001-08-29
CN100381665C true CN100381665C (en) 2008-04-16

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101914974B (en) * 2009-09-01 2011-12-28 吴淑环 Light slab
CN101858119B (en) * 2010-06-23 2012-08-22 吴方伯 Reinforced concrete hollow floor slab and construction method
CN102733603B (en) * 2012-06-05 2016-12-14 中铁十八局集团有限公司 A kind of high strength steel strand is utilized to carry out greatly across the construction method of special-shaped floor
CN103452219A (en) * 2013-09-16 2013-12-18 南京工业大学 Honeycomb steel hidden beam composite floor system
CN105133765A (en) * 2015-07-27 2015-12-09 中建三局第二建设工程有限责任公司 Construction method for bottom warming of profiled steel plate concrete composite floor
CN106639097B (en) * 2016-10-09 2019-02-19 北京崇建工程有限公司 A kind of construction method and floor construction of in-situ reinforced concrete slab
CN109024872A (en) * 2018-07-22 2018-12-18 北京工业大学 A kind of concrete frame mechanization assembly type balcony

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH610977A5 (en) * 1977-04-04 1979-05-15 Baupres Ag Joist for the construction of floors
CN2249781Y (en) * 1996-06-06 1997-03-19 资贸(厦门)建材工业有限公司 Pressed steel plates for buildings
CN2361702Y (en) * 1999-03-10 2000-02-02 邱则有 Thin-wall barrel filling cast-in-place concrete hollow floor
CN2408161Y (en) * 2000-02-25 2000-11-29 邱则有 Shape steel beam non-core extraction hole forming cast in site reinforced concrete hollow plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH610977A5 (en) * 1977-04-04 1979-05-15 Baupres Ag Joist for the construction of floors
CN2249781Y (en) * 1996-06-06 1997-03-19 资贸(厦门)建材工业有限公司 Pressed steel plates for buildings
CN2361702Y (en) * 1999-03-10 2000-02-02 邱则有 Thin-wall barrel filling cast-in-place concrete hollow floor
CN2408161Y (en) * 2000-02-25 2000-11-29 邱则有 Shape steel beam non-core extraction hole forming cast in site reinforced concrete hollow plate

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Free format text: CORRECT: ADDRESS; FROM: 410005 CHANGSHA JUXING WEIGHT BUILDING MATERIALS CO., LTD., 8/F, ZHONGSHAN INTERNATIONAL BUILDING, WUYI PLAZA, CHANGSHA CITY, HU'NAN PROVINCE TO: 410205 GIANT INDUSTRIAL BASE, NO.8, LUJING ROAD, CHANGSHA NEW + HIGH DEVELOPMENT ZONE, YUELU DISTRICT, CHANGSHA CITY, HU'NAN PROVINCE

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Patentee before: Qiu Zeyou

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