CN1152182C - Hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure - Google Patents

Hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure Download PDF

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Publication number
CN1152182C
CN1152182C CNB011286709A CN01128670A CN1152182C CN 1152182 C CN1152182 C CN 1152182C CN B011286709 A CNB011286709 A CN B011286709A CN 01128670 A CN01128670 A CN 01128670A CN 1152182 C CN1152182 C CN 1152182C
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China
Prior art keywords
hollow
hole
pipe
transverse stiffener
reinforced concrete
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CNB011286709A
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Chinese (zh)
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CN1344851A (en
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邱则有
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邱则有
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Priority to CNB011286709A priority Critical patent/CN1152182C/en
Publication of CN1344851A publication Critical patent/CN1344851A/en
Priority claimed from PCT/CN2002/000698 external-priority patent/WO2003029573A1/en
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Publication of CN1152182C publication Critical patent/CN1152182C/en
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Abstract

The present invention relates to a hollow pipe structural member for combined structure of in-situ casting steel reinforced concrete, which is composed of a hollow pipe (1), shell covers (2) at both ends of the hollow pipe (1) and a transverse stiffening rib (3) arranged in the hollow pipe (1), wherein the cross-sectional shapes of the hollow pipe (1), the shell covers (2) and the transverse stiffening rib (3) form the same shape of a circular shape, square, trapezium or other shapes. The present invention is characterized in that the transverse stiffening rib (3) is a hollow transverse stiffening rib (3) and is composed of a hollow hole (4) and a hole wall structural member (5) forming the hollow hole (4), and the hollow hole (4) is positioned in the hole wall structural member (5). The transverse stiffening rib (3) in the hollow pipe (1) is the hollow transverse stiffening rib (3), so the structural member has the characteristics of light weight, low cost, etc. At the same time, the defect that no force-bearing structural member and anti crack structure is in the hollow pipe (1) is eliminated, and the structural member also has the characteristics of high intensity, large deformation resistance, good shock resistance performance, convenient construction and transportation, etc.

Description

A kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure

(1) technical field

The present invention relates to a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure.

(2) background technology

At present, in the prior art, it is permanent core that cast-in-situ hollow floor plate becomes pole, and as paper tube, plastic pipe, metal bellows, core light material etc., these tubular core molds or member mainly consider to find time concrete, reduce floor weight.It as the patent No. 99249755.8 cast-in-place reinforced concrete filling fiber reinforcement type thin wall cylinder, it is made up of horniness thin-walled tube and two ends plug, two plugs form an enclosed cavity with the horniness thin-walled tube closed at both ends, and horniness thin-walled tube cross section and plug shape can be circle, square, trapezoidal or other is special-shaped.After this pipe is applied to cast-in-situ hollow floor plate; because the tubulose concrete of reinforced concrete floor hard thin-wall tube hub is evacuated; along pipe the Cast-in-place concrete rib arranged vertically; and laterally found time by core or member owing to steel bar concrete; only depend on two plugs to seal, therefore, can't bear the effect of complicated pulling force, pressure, shearing, moment of torsion etc. as the power transmission rib; the bigger situation of cast-in-place hollow slab two direction rigidity great disparities occurs, can't form well word rib equivalent transverse and longitudinal.As the plate that pours into this kind member, compare with two-way multi-ribbed plate, then exist the steel bar concrete consumption big, from great, core can not play the member in shear memory effect, and hollowcore slab thickness is big, and deflection deformation is big, the shearing resistance torsional property is poor, the easy crack of weakness, last bottom flange, bidirectional stress power transmission difference is big, poor mechanical property, shock resistance is poor, the big deficiency that waits of two-way stiffness difference.The applicant has proposed the utility application of application number for a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure of " 01264287.8 " September 30 calendar year 2001 to China Intellectual Property Office for this reason, it is made up of the end socket (2) at hollow section (1), hollow section (1) two ends, the transverse stiffener (3) that is arranged in the hollow section (1), and the shape of cross section of hollow section (1), end socket (2), transverse stiffener (3) is all circle, square, trapezoidal or other shape.Like this owing in pipe, be provided with transverse stiffener (3), during use, it be template be again primary structure member, simultaneously, have the intensity height, bidirectional stress power transmission difference is little, the shearing resistance torsional property is strong, resistance to deformation is big, anti-seismic performance is good, characteristics such as convenient construction and transport.On this basis,, reduce cost, need a kind of novel hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure of development in order further to alleviate the weight of hollow section (1).

(3) summary of the invention

The purpose of this invention is to provide a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure, have in light weight, characteristics such as cost is low, during use, it be template be again primary structure member, simultaneously, also have the intensity height, bidirectional stress power transmission difference is little, the shearing resistance torsional property is strong, resistance to deformation is big, anti-seismic performance is good, characteristics such as convenient construction and transport.

Solution of the present invention is that transverse stiffener is hollow transverse stiffener on the basis of existing technology, and it is made up of hollow hole and the hole wall member that constitutes hollow hole, and hollow hole is arranged in the hole wall member.This member is because the transverse stiffener in hollow section is hollow transverse stiffener, thereby have characteristics such as in light weight, that cost is low, simultaneously, eliminate the defective of interior no primary structure member of hollow section and cracking resistance structure, also had the intensity height, bidirectional stress power transmission difference is little, shearing resistance is antitorque strong, and resistance to deformation is big, and anti-seismic performance is good, characteristics such as convenient construction and transport, thus reached purpose of the present invention.

Feature of the present invention is that also the hole wall member of formation hollow hole in the hollow transverse stiffener is the core-drawing pore-creating member, perhaps become pole for burying hollow core pipe, it perhaps is cellular member, perhaps the member that is made of both sides of the chest side plate and Waveform shaping spare, backfin profiled member or composite board perhaps is made of both sides of the chest side plate and hollow section body.

Feature of the present invention also be the hole wall member be the core-drawing pore-creating member, when burying hollow core pipe and becoming pole or cellular member in hollow transverse stiffener, to arrange, the axis of hollow hole is parallel or vertical with the axis of hollow section.

Feature of the present invention also is at the core-drawing pore-creating member, bury hollow core pipe becomes the two sides of pole or cellular member that the both sides of the chest side plate is arranged; Backfin profiled member, Waveform shaping spare, composite board do not have the both sides of the chest side plate, and its recessed position has constituted unidirectional open slot.

Feature of the present invention also is to have on the transverse stiffener rigidity of the increase transverse stiffener of protrusion, the reinforcing rib of intensity.

Feature of the present invention is that also the pass of the hollow hole in the hole wall member is circle, semicircle, ellipse, shaped form, triangle, quadrangle, polygon or other shape.

Feature of the present invention also is to have on the hollow section reinforcing bar to reveal muscle or steel mesh reinforcement, gauze wire cloth reveals net.

Feature of the present invention is that also the hollow position, transverse stiffener place on hollow section makes part or whole grooves week along pipe, groove is the equal-width groove or the groove that broadens, the muscle of revealing is arranged in the groove or reveal net, dew muscle or dew net are hidden in the groove or bend volt in groove.

Feature of the present invention is that also the end socket at hollow section two ends is two plugs, and perhaps an end is a plug, and the other end is hollow transverse stiffener, and perhaps two ends are two hollow transverse stiffeners.

Feature of the present invention also is to be fixed with the locating structure that connects template in the bottom of hollow section, and locating structure is draw ring, pull hook, connects muscle, draws in the net or other device.

(4) description of drawings

Fig. 1 is the structural representation of embodiments of the invention 1, and the hole wall member (5) of its hollow transverse stiffener (3) is core-drawing pore-creating member (6).

Fig. 2 is the structural representation of embodiments of the invention 2, and the hole wall member (5) of its hollow transverse stiffener (3) is core-drawing pore-creating member (6), and there is both sides of the chest side plate (9) two sides.

Fig. 3 is the structural representation of embodiments of the invention 3, and the hole wall member (5) of its hollow transverse stiffener (3) becomes pole (7) for burying hollow core pipe, and there is both sides of the chest side plate (9) two sides.

Fig. 4 is the structural representation of embodiments of the invention 4, and the hole wall member (5) of its hollow transverse stiffener (3) becomes pole (7) for burying hollow core pipe, and two sides do not have both sides of the chest side plate (9).

Fig. 5 is the structural representation of embodiments of the invention 5, and the hole wall member (5) of its hollow transverse stiffener (3) is cellular member (8), the axis normal of the axis of honeycomb hole and hollow section (1), and there is both sides of the chest side plate (9) two sides.

Fig. 6 is the structural representation of embodiments of the invention 6, and the hole wall member (5) of its hollow transverse stiffener (3) is cellular member (8), and the axis of honeycomb hole is parallel with the axis of hollow section (1), and there is both sides of the chest side plate (9) two sides.

Fig. 7 is the structural representation of embodiments of the invention 7, and the hole wall member (5) of its hollow transverse stiffener (3) is the member that both sides of the chest side plate (9) and Waveform shaping spare (10) constitute.

Fig. 8 is the structural representation of embodiments of the invention 8, and the hole wall member (5) of its hollow transverse stiffener (3) is the member that both sides of the chest side plate (9) and backfin profiled member (11) constitute.

Fig. 9 is the structural representation of embodiments of the invention 9, and the hole wall member (5) of its hollow transverse stiffener (3) is the member that both sides of the chest side plate (9) and composite board (12) constitute.

Figure 10 is the structural representation of embodiments of the invention 10, and the hole wall member (5) of its hollow transverse stiffener (3) is the member that the inwall of both sides of the chest side plate (9) and hollow section (1) constitutes.

Figure 11 is the structural representation of embodiments of the invention 11, and the hole wall member (5) of its hollow transverse stiffener (3) is core-drawing pore-creating member (6), and the axis of core-drawing hole is parallel with the axis of hollow section (1), and there is both sides of the chest side plate (9) two sides.

Figure 12 is the structural representation of embodiments of the invention 12, and the hole wall member (5) of its hollow transverse stiffener (3) becomes pole (7) for burying hollow core pipe, and the axis of core pipe is parallel with the axis of hollow section (1), and there is both sides of the chest side plate (9) both sides.

Figure 13 is the structural representation of embodiments of the invention 13, and the hole wall member (5) of its hollow transverse stiffener (3) becomes to be with semicircular member (6) for loosing core, the axis in semicircle core hole and axis normal hollow section (1).

Figure 14 is the structural representation of embodiments of the invention 14, and the hole wall member (5) of its hollow transverse stiffener (3) is a backfin profiled member (11), and two sides do not have both sides of the chest side plate (9), but there is reinforcing rib (13) both sides.

Figure 15 is the structural representation of embodiments of the invention 15, and the hole wall member (5) of its hollow transverse stiffener (3) is Waveform shaping spare (10), and two sides do not have both sides of the chest side plate (9).

Figure 16 is the structural representation of embodiments of the invention 16, and the hole wall member (5) of its hollow transverse stiffener (3) is the member that composite board (12) constitutes, and two sides do not have both sides of the chest side plate (9).

Figure 17 is the structural representation of embodiments of the invention 17, in the upper and lower part in pipe week at hollow transverse stiffener (3) position, place of hollow section (1) partial groove (16) is arranged, and in groove (16) dew muscle (14) is arranged, and be hidden in the groove (16).

Figure 18 is the user mode sectional view of hollow pipe component in steel bar concrete of cellular hollow reinforced rib (3).

Figure 19 has the user mode sectional view of dew muscle (14) in steel bar concrete for the hollow pipe component of hollow transverse stiffener (3).

(5) specific embodiment

The invention will be further described below in conjunction with drawings and Examples.

The present invention as shown in Figure 1, form by the end socket (2) at hollow section (1), hollow section (1) two ends, the transverse stiffener (3) that is arranged in the hollow section (1), the shape of cross section of hollow section (1), end socket (2), transverse stiffener (3) is all circle, square, trapezoidal or other shape, it is characterized in that transverse stiffener (3) is hollow transverse stiffener (3), it is made up of the hole wall member (5) of hollow hole (4) and formation hollow hole (4), and hollow hole (4) is arranged in hole wall member (5).This member is because the transverse stiffener (3) in the hollow section (1) is hollow transverse stiffener (3), thereby have characteristics such as in light weight, that cost is low, simultaneously, eliminated the defective of interior no primary structure member of hollow section (1) and cracking resistance structure, also had the intensity height, bidirectional stress power transmission difference is little, shearing resistance is antitorque strong, resistance to deformation is big, and anti-seismic performance is good, characteristics such as construction transportation aspect.

Feature of the present invention is that also the hole wall member (5) of formation hollow hole (4) in the hollow transverse stiffener (3) is a core-drawing pore-creating member (6), perhaps become pole (7) for burying hollow core pipe, it perhaps is cellular member (8), perhaps the member that is made of both sides of the chest side plate (9) and Waveform shaping spare (10), backfin profiled member (11) or composite board (12) perhaps is made of both sides of the chest side plate (9) and hollow section (1) body.The hole wall member (5) of Fig. 2 is core-drawing pore-creating member (6), and the axis normal of the axis of core-drawing hole and hollow section (1); The hole wall member (5) of Fig. 3, Fig. 4 becomes pole (7) for burying hollow core pipe, and the axis normal of core tubular axis line and hollow section (1); The hole wall member (5) of Fig. 5, Fig. 6 is cellular member (8); Fig. 7, Fig. 8, Fig. 9, Figure 10 are respectively the member of both sides of the chest side plate (9) and Waveform shaping spare (10), backfin profiled member (11) or composite board (12) formation, and by the member of both sides of the chest side plate (9) with hollow section (1) body formation.

Feature of the present invention also is hole wall member (5) for core-drawing pore-creating member (6), when burying hollow core pipe and becoming pole (7) or cellular member (8) to arrange in hollow transverse stiffener (3), the axis of hollow hole is parallel or vertical with the axis of hollow section (1).Fig. 6, Figure 11, shown in Figure 12ly be respectively cellular member (8), core-drawing pore-creating member (6), bury hollow core pipe and become the hole axis of pole (7) parallel with the axis of hollow section (1).Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 are respectively core-drawing pore-creating member (6), bury the axis normal that hollow core pipe becomes the hole axis and the hollow section (1) of pole (7), cellular member (8).

Feature of the present invention also is at core-drawing pore-creating member (6), bury hollow core pipe becomes the two sides of pole (7) or cellular member (8) that both sides of the chest side plate (9) is arranged; Backfin profiled member (11), Waveform shaping spare (10), the no both sides of the chest side plate of composite board (12) (9), its recessed position has constituted unidirectional open slot (19).Fig. 2, Fig. 3, Fig. 5, Fig. 6 be respectively core-drawing pore-creating member (6), bury hollow core pipe becomes the two sides of pole (7), cellular member (8) that the situation of both sides of the chest side plate (9) is arranged, also can not add the both sides of the chest side plate, as Fig. 1, shown in Figure 4, Figure 14, Figure 15, Figure 16 are respectively the two sides of backfin profiled member (11), Waveform shaping spare (10), composite board (12) does not have the situation of both sides of the chest side plate (9).

Feature of the present invention also is to have on the transverse stiffener (3) rigidity of the increase transverse stiffener (3) of protrusion, the reinforcing rib (13) of intensity.Fig. 8, Figure 14 shows that the situation of reinforcing rib (13).

Feature of the present invention is that also the pass of the hollow hole (4) in the hole wall member (5) is circle, semicircle, ellipse, shaped form, triangle, quadrangle, polygon or other shape.The pass of hollow hole (4) shown in Fig. 1, Fig. 2, Fig. 3 etc. is circular, and Figure 13 is semicircle.

Feature of the present invention also is to have on the hollow section (1) reinforcing bar to reveal muscle (14) or steel mesh reinforcement, gauze wire cloth reveals net (15).Fig. 2 has the net 15 of revealing on the hollow section (1), Figure 17, Figure 19 have the situation of revealing muscle on the hollow section (1).

Feature of the present invention is that also hollow transverse stiffener (3) position, place on hollow section (1) makes part or whole grooves (16) week along pipe, groove (16) is the equal-width groove or the groove that broadens, dew muscle (14) is arranged in the groove (16) or reveal net (15), reveal muscle (14) or dew net (15) and be hidden in the groove (16) or curved lying prostrate in groove (16).Figure 17 has upper and lower partial groove (16) on the hollow section (1), dew muscle (14) is arranged in the groove (16), and be hidden in the groove (16).

Feature of the present invention is that also the end socket (2) at hollow section 1 two ends is two plugs (17), and perhaps an end is a plug (17), and the other end is hollow transverse stiffener (3), and perhaps two ends are two hollow transverse stiffeners (3).It is hollow transverse stiffener (3) that Fig. 1, Fig. 2, Fig. 3 etc. are depicted as an end, and the other end is the situation of a plug (17).

Feature of the present invention also is to be fixed with the locating structure (18) that connects template in the bottom of hollow section (1), and locating structure (18) is draw ring, pull hook, connects muscle, draws in the net or other device.Fig. 9, Figure 16 are for there being the situation of draw-ring type locating structure (18).

The body material of hollow section 1 of the present invention can be that Cement fibre, cement are arranged net, fiber cement mortar, cloth mortar, cement mortar, metal bellows, plastic pipe, metal tube, cement gauze wire cloth or cement mortar gauze wire cloth, its gauze wire cloth or fibrous mesh cloth, cloth one or more layers.

The hole wall member (5) of hollow transverse stiffener of the present invention (3) can be the core-drawing pore-creating member (6) of concrete, perhaps for the hollow pipe that buries of concrete becomes pole (7), perhaps is cellular member (8), and cellular member (8) can be various paper or bamboo cellular member; Also can be by the member of both sides of the chest side plate (9) with Waveform shaping spare (10), backfin profiled member (11) or composite board (12) formation, perhaps constitute by both sides of the chest side plate (9) and hollow section (1) body, Waveform shaping spare (10), backfin profiled member (11), composite board (12) can be various paper or bamboo, also can be cloth mortar or wire mesh mortar profiled member.

The present invention can earlier prefabricated hollow transverse stiffener (3) when making, and then hollow transverse stiffener (3) is placed hollow section 1 moulding core, and the hollow section 1 with making is shaped to integral body then.

Claims (10)

1, a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure, form by the end socket (2) at hollow section (1), hollow section (1) two ends, the transverse stiffener (3) that is arranged in the hollow section (1), the shape of cross section of hollow section (1), end socket (2), transverse stiffener (3) is all circle, square, trapezoidal or other shape, it is characterized in that transverse stiffener (3) is hollow transverse stiffener (3), it is made up of the hole wall member (5) of hollow hole (4) and formation hollow hole (4), and hollow hole (4) is arranged in hole wall member (5).
2, a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure according to claim 1, the hole wall member (5) that it is characterized in that formation hollow hole (4) in the hollow transverse stiffener (3) is a core-drawing pore-creating member (6), perhaps become pole (7) for burying hollow core pipe, it perhaps is cellular member (8), perhaps the member that is made of both sides of the chest side plate (9) and Waveform shaping spare (10), backfin profiled member (11) or composite board (12) perhaps is made of both sides of the chest side plate (9) and hollow section (1) body.
3, a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure according to claim 2, it is characterized in that hole wall member (5) for core-drawing pore-creating member (6), when burying hollow core pipe and becoming pole (7) or cellular member (8) to arrange in hollow transverse stiffener (3), the axis of hollow hole is parallel or vertical with the axis of hollow section (1).
4, a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure according to claim 2 is characterized in that at core-drawing pore-creating member (6), buries hollow core pipe and become the two sides of pole (7) or cellular member (8) that both sides of the chest side plate (9) is arranged; Backfin profiled member (11), Waveform shaping spare (10), the no both sides of the chest side plate of composite board (12) (9), its recessed position has constituted unidirectional open slot (19).
5,, it is characterized in that having on the transverse stiffener (3) rigidity of the increase transverse stiffener (3) of protrusion, the reinforcing rib (13) of intensity according to claim 2 or 4 described a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure.
6,, it is characterized in that the pass of the hollow hole (4) in the hole wall member (5) is circle, semicircle, ellipse, shaped form, triangle, quadrangle, polygon or other shape according to claim 1 or 2 described a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure.
7,, it is characterized in that having on the hollow section (1) reinforcing bar dew muscle (14) or steel mesh reinforcement, gauze wire cloth to reveal net (15) according to claim 1 or 2 described a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure.
8, according to claim 1 or 2 described a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure, it is characterized in that hollow transverse stiffener (3) position, place on hollow section (1) makes part or whole grooves (16) week along pipe, groove (16) is the equal-width groove or the groove that broadens, dew muscle (14) is arranged in the groove (16) or reveal net (15), reveal muscle (14) or dew net (15) and be hidden in the groove (16) or curved lying prostrate in groove (16).
9, according to claim 1 or 2 described a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure, the end socket (2) that it is characterized in that hollow section 1 two ends is two plugs (17), perhaps an end is a plug (17), the other end is hollow transverse stiffener (3), and perhaps two ends are two hollow transverse stiffeners (3).
10, according to claim 1 or 2 described a kind of hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure, it is characterized in that being fixed with the locating structure (18) that connects template in the bottom of hollow section (1), locating structure (18) is draw ring, pull hook, connects muscle, draws in the net or other device.
CNB011286709A 2001-10-09 2001-10-09 Hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure CN1152182C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB011286709A CN1152182C (en) 2001-10-09 2001-10-09 Hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB011286709A CN1152182C (en) 2001-10-09 2001-10-09 Hollow pipe member for in-situ deposited steel bar reinforced concrete combined structure
PCT/CN2002/000698 WO2003029573A1 (en) 2001-09-30 2002-09-29 An hollow formwork for a insitu reinforcing concrete structure

Publications (2)

Publication Number Publication Date
CN1344851A CN1344851A (en) 2002-04-17
CN1152182C true CN1152182C (en) 2004-06-02

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Cited By (1)

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CN1318711C (en) * 2005-01-28 2007-05-30 刘国模 Construction of steel bar reinforced hollow concrete floor cast-in-situs

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CN1877014B (en) * 2002-04-30 2010-05-12 邱则有 Stereo bearing shuttering for reinforced concrete
CN1974976A (en) * 2002-04-30 2007-06-06 邱则有 Bottom plate member for form of steel reinforced concrete
CN101016775B (en) * 2002-04-30 2011-12-21 湖南邱则有专利战略策划有限公司 Reinforced concrete tridimensional load-carrying structure floor
CN100357542C (en) * 2002-04-30 2007-12-26 邱则有 Three-dimensional force-bearing shuttering for steel reinforced concrete
CN100458071C (en) * 2002-10-05 2009-02-04 邱则有 Thin-wall pipe filling type cast-in-situ concrete hollow floor
CN100348809C (en) * 2002-10-05 2007-11-14 邱则有 Thin wall pipe for filling concrete
CN100501043C (en) * 2002-12-16 2009-06-17 邱则有 Light permanent carcass for filling concrete
CN1991098A (en) * 2002-12-22 2007-07-04 邱则有 Component for cast-in-situ reinforcing steel bar concrete
CN101240624A (en) * 2002-12-22 2008-08-13 邱则有 Cast-in-situ reinforcing steel bar concrete floor
CN100370095C (en) * 2002-12-22 2008-02-20 邱则有 Hole constructing component for in situ cast steel bar reinforced concrete
CN1304704C (en) * 2003-02-26 2007-03-14 邱则有 Cast-in-situ reinforced concrete storey top
CN100427691C (en) * 2003-02-26 2008-10-22 邱则有 Cast-in-situ reinforced concrete hollow floorslab
CN100476103C (en) * 2003-05-06 2009-04-08 邱则有 Cast-in-place steel reinforced concrete hollow slab
CN100476117C (en) * 2003-06-24 2009-04-08 邱则有 Hollow component
CN105155746A (en) * 2015-09-30 2015-12-16 中民筑友有限公司 Prefabricated hollow slab core-buried pore-forming pipe

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1318711C (en) * 2005-01-28 2007-05-30 刘国模 Construction of steel bar reinforced hollow concrete floor cast-in-situs

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