(2) background technology
Advantages such as at present, at present, the most precast hollow slab that adopts of the building of brick mix structure and reinforced concrete structure is as floor structure, and it is fast that this floor structure has speed of application, and cost is low.But, only use the cement mortar joint filling, thereby globality is poor, is unfavorable for antidetonation, and phenomenons such as slit cracking, infiltration often occur owing to firmly do not link between adjacent two precast hollow slabs.In order to address the above problem, a lot of building have adopted the method for Cast-in-place concrete floor (solid, hollow), though solved antidetonation and problems of crack, will use template in a large number during construction, have not only increased expense, and have slowed down speed of application, have prolonged the duration.Application number is " a kind of combination concrete rib floor structure " utility model patent of 00203695.9, it is made up of prefabricated plate, formwork, dark rib, upper plate, each prefabricated plate is placed at interval, on prefabricated plate, be fixed with formwork, be provided with dark rib between contiguous prefabricated thin plate or the formwork, upper plate covers on the formwork, and connects as one with dark rib.Though this floor structure can be saved a large amount of templates, accelerate construction progress, but because formwork is what to separate with prefabricated plate, its strength and stiffness are corresponding relatively poor, thereby the problem that exists formwork easily to break, simultaneously, formwork is fixed on and does not relate to concrete fixed form on the prefabricated plate, thereby fixed in place is difficult.And the patent No. is 93206310.1 shuttering member utility model patent, it constitutes hollow mould shell by sidewall and formwork upper plate and is connected to form totally-enclosed cavity polyhedral structure with lower shoe again, prefabricated ribs is arranged in it, during use member is placed on the supporter of floor gap, formation bonded to one another is whole between cast-in-place main rib, the shuttering member.When this kind member uses, be a kind of prefabricated noggin piece purely, the ribs in the die housing only is used to support formwork, can not participate in the whole stressed of superstructure.And when being applied in than the large spatial structure superstructure, its stress performance is also phase strain differential thereupon, do not have time rib between the cast-in-place main rib and connect, thereby make the size of main rib need the phase strain big, or the quantity of main rib increases, and causes material usage to increase, and cost increases.For this reason, the applicant has applied for that November 15 calendar year 2001 publication number is that CN1349028A, name are called " a kind of Comobined ribbed cavity member for spatial structure roof " patent of invention, its disclosed Cavity structural member includes formwork and structure base plate, hollow mould shell and structure base plate connect into integral body, it is characterized in that having 2 hollow mould shells on the structure base plate at least alternately, its side and structure base plate constitute at least one cast-in-place structural time rib die cavity, and other lateral surface of hollow mould shell constitutes the side template of cast-in-place structural main rib or beam or wall.Like this, because on the prior art basis, at least 2 hollow mould shells and at least 1 cast-in-place structural time rib die cavity (internal-rib die cavity) are arranged on the structure base plate, on the structure base plate, just can form cast-in-place structure time rib, fellowship structure base plate, main rib, upper plate stressed, form two-way main rib time rib force structure, problems of the prior art have not only been solved, but also overall performance, the anti-seismic performance of superstructure have further been improved, reduced the thickness of superstructure, alleviate dead load, reduced cost.But this Cavity structural member is in carrying, work progress, and its structure base plate is prone to the phenomenon that fractures, thereby the breakage rate of Cavity structural member is big, and carrying, construction inconvenience have increased construction cost.Therefore, develop a kind of novel hollowcore slab and be urgent need with Cavity structural member.
(3) summary of the invention
The object of the present invention is to provide a kind of hollowcore slab Cavity structural member, have characteristics such as intensity height, non-frangibility, carrying, easy construction.
Solution of the present invention is on the basis of existing technology, include hollow mould shell, structure base plate, hollow mould shell and structure base plate connect into integral body, at least two above hollow mould shells are arranged alternately on the structure base plate, alternate cavity between the hollow mould shell and structure base plate constitute cast-in-place structural internal-rib die cavity, it is characterized in that the vertical coaxial line arrangement of described hollow mould shell, on vertical lateral surface of at least one side of hollow mould shell, be superimposed with the vertical rib of at least one strip, become the inverted T-shaped structure with structure base plate bonding.Like this, because the vertical coaxial line of hollow mould shell is arranged, on vertical lateral surface of at least one side of hollow mould shell, be superimposed with the vertical rib of at least one strip, become the inverted T-shaped structure with structure base plate bonding, thereby concrete hollow board is bigger with the intensity and the rigidity of Cavity structural member, shock resistance is better, its structure base plate is frangibility more not, carrying is more convenient with construction, and, because the vertical coaxial line arrangement of hollow mould shell, thereby the Cavity structural member construction is laid more convenient, can further reduce construction cost, thereby reach purpose of the present invention; Simultaneously, Cavity structural member also has characteristics such as simple in structure, easily manufactured, that cost is low, the hollowcore slab, hollow building cover, roof system, sole plate, body of wall and the hollow bridges that are applicable to cast-in-situ reinforced concrete or prestressed reinforced concrete are used, and are specially adapted to hollow arch without beam and use.
Feature of the present invention is that also described vertical rib is superimposed with vertical lateral surface of whole hollow mould shells of vertically arranging.Like this, vertical lateral surface of whole hollow mould shells that vertical rib will vertically be arranged has connected into integral body, makes it can be stressed jointly in application process, has improved the overall performance of hollowcore slab with Cavity structural member.
Feature of the present invention is that also described vertical rib is provided with the groove that is used for Cast-in-place concrete, and groove is communicated with the internal-rib die cavity.Like this, when described vertical rib is provided with the groove that is used for Cast-in-place concrete, groove is communicated with the internal-rib die cavity, hollowcore slab is applied to when cast-in-place concrete cored with Cavity structural member, Cast-in-place concrete pours in groove and the internal-rib die cavity, the corresponding Cast-in-place concrete stiffener that formed can improve the performance of the inside load-carrying construction of floor significantly.
Feature of the present invention also is to water superimposed vertical rib after described vertical rib is.Like this, when vertical rib waters superimposed vertical rib after being, intensity height, the rigidity height of vertical rib, and be easy to manufacture, when this hollowcore slab be applied to Cavity structural member cast-in-place concrete cored in after, vertical rib is can participation structure stressed jointly.
Feature of the present invention also is to be provided with in the described internal-rib die cavity at least one support draw piece, and adjacent cavities formwork or vertical rib are connected to each other.Like this, be provided with at least one support draw piece in the internal-rib die cavity, adjacent cavities formwork or vertical rib are connected to each other, hollowcore slab is better with the overall performance of Cavity structural member.
Feature of the present invention is that also one side at least of described structure base plate is extended with toss.Like this, Yi Bian the structure base plate be extended with toss at least, toss can replace template, reduces the template loss, reduces material cost, can save the template installation procedure simultaneously, accelerates speed of application, improves efficiency of construction.
Feature of the present invention also is the wide 10-110mm of being of described toss.Like this, can be according to the needs of different actual conditions, the width that can adjust toss satisfies it and uses needs.
Feature of the present invention is that also at least one non-prestressed or prestressed reinforcing bar, steel wire or steel strand are arranged in described hollow mould shell or structure base plate or the vertical rib.Like this, after at least one non-prestressed or prestressed reinforcing bar, steel wire or steel strand are arranged in hollow mould shell or structure base plate, can improve the strength and stiffness of hollow mould shell or structure base plate greatly, perhaps make it become prestressed member, thereby improved its force structure, made its force structure more good, reasonable.
Feature of the present invention also be on the wall of described hollow mould shell or have on the structure base plate in the cavity of reinforcing rib or hollow mould shell supporting rod is arranged or the floor of putting more energy at least a.Like this, on the wall of hollow mould shell or have on the structure base plate in the cavity of reinforcing rib or hollow mould shell and supporting rod is arranged or the floor of putting more energy into, can strengthen the supporting capacity of Cavity structural member greatly, the proportion of goods damageds of Cavity structural member in transportation, installation, work progress have been reduced, save material, reduced the cost of hollowcore slab.
Feature of the present invention also be described reinforcing rib or/and supporting rod or/and be provided with reinforcing bar or steel mesh reinforcement in the floor of putting more energy into.Like this, reinforcing rib is or/and supporting rod, has been strengthened the rigidity and the intensity of reinforcing rib, supporting rod, the floor of putting more energy into greatly or/and be provided with reinforcing bar or steel mesh reinforcement in the floor of putting more energy into.
Feature of the present invention is that also described reinforcing bar or steel mesh reinforcement expose outside the hollow mould shell.Like this, reinforcing bar or steel mesh reinforcement expose outside the hollow mould shell, but convenient construction process hollow core simultaneously, is bonded to integral body with Cast-in-place concrete with Cavity structural member binding, installation and only floating, can make the globality of hollowcore slab better.
Feature of the present invention also is on the described hollow mould shell fluted.Like this, cast-in-situ reinforced concrete forms Cast-in-place concrete muscle, piece, bar, rod member or pier, and the Cast-in-place concrete that has constituted inner local reinforcement in the cast-in-place hollow slab adds competent structure, thereby makes structure more reasonable.
Feature of the present invention also is to have in the described groove at least a in back superimposed reinforcing bar, steel wire or the steel strand.Like this, when described hollowcore slab be applied to Cavity structural member cast-in-place concrete cored in after, Cast-in-place concrete pours in the groove, combines with superimposed reinforcing bar, steel wire or the steel strand in back and forms cast-in-place steel bar concrete primary structure member, can improve the structural strength and the rigidity of floor greatly.
Feature of the present invention is that also described hollow mould shell is the integral finish hollow mould shell.Like this, when hollow mould shell was the integral finish hollow mould shell, the hollow mould shell overall performance was good, cracky not, when described hollowcore slab be applied to Cavity structural member cast-in-place concrete cored in after, hollow mould shell can be emptied the concrete that does not stress in the plate, reduce the deadweight of plate, help reducing the cost of plate.
Feature of the present invention is that also described hollow mould shell is the opening of at least two amalgamations or the form unit of remaining silent composition.Like this, when hollow mould shell was made up of the opening of two amalgamations or the form unit of remaining silent at least, hollow mould shell was manufactured conveniently, and speed of production is fast, helps reducing cost and flexible Application.
Feature of the present invention is that also described form unit partly is the hard shell, and part is soft shell, perhaps is filled with light material in it.Like this, form unit partly is the hard shell, part is soft shell, perhaps be filled with light material in it, when described hollowcore slab be applied to Cavity structural member cast-in-place concrete cored in after, according to the different situations needs, as pipe built-in etc., can on soft shell, slot or punch, make things convenient for the pre-buried of pipeline, be very easy to construction application.
Feature of the present invention is that also described hollow mould shell is the sealed hollow formwork.Like this, when hollow mould shell is the sealed hollow formwork, when described hollowcore slab be applied to Cavity structural member cast-in-place concrete cored in after, concrete can not enter in the hollow mould shell, has played concrete effectively and has emptied effect, has reduced the deadweight of floor, has improved the hollow rate of floor.
Feature of the present invention also is to contain reinforce in described hollow mould shell or structure base plate or the vertical rib, hollow mould shell is extended with reinforce and is anchored in structure base plate or the vertical rib, perhaps there is reinforce to be anchored in hollow mould shell or the vertical rib in the structure base plate, has reinforce to be anchored in hollow mould shell or the structure base plate in the perhaps vertical rib.Like this, being provided with the structure base plate of reinforce and the intensity of hollow mould shell has obtained improving greatly.
Feature of the present invention is that also described structure base plate and vertical rib are the structure base plate or the vertical rib of cement mortar or concrete or steel bar concrete or steel mesh reinforcement concrete.Like this, the diversity of structure base plate and vertical rib manufacturing materials can make things convenient for its making to draw materials nearby, reduces the cost of hollowcore slab with Cavity structural member.
Feature of the present invention is that also described vertical rib is provided with the range line pier.Like this, by the range line pier that on vertical rib, is provided with, can carry out accurate range line location with Cavity structural member to hollowcore slab, make it in application process, guarantee between the two distance, thereby guaranteed the width or the thickness of Cast-in-place concrete, made the constructor be easy to floor is carried out quality control.
Feature of the present invention is that also described hollow mould shell is provided with at least one in projection, reinforcing bar filler strip, pit or the hole.Like this, after described hollowcore slab is applied in the In-situ cast concrete board with Cavity structural member, Cast-in-place concrete pours in the above-mentioned structure, projection, reinforcing bar filler strip can accurately be located reinforcing bar, guarantee the pouring quality of floor, Cast-in-place concrete pours into the corresponding Cast-in-place concrete load-carrying construction member that formed in pit or the hole, can improve the structural performance of floor effectively.
Feature of the present invention is that also described hollow mould shell is a prefabricated component, forms integral body with the structure bottom plate glue.Like this, cast-in-place and prefabricated structure combining form has reduced the production difficulty, and simultaneously, both are in conjunction with firm, and hollow mould shell is difficult for becoming flexible, dropping, and has improved the quality of hollowcore slab with Cavity structural member.
Feature of the present invention is that also the top board of described hollow mould shell is a superimposed sheet.Like this, the top board of hollow mould shell is a superimposed sheet, and it is more convenient to construct.
Feature of the present invention is that also described hollow mould shell is provided with at least one in inner corner trim, chamfering or the arc angle.Like this, when hollowcore slab with Cavity structural member be applied to cast-in-place concrete cored in the time, Cast-in-place concrete pours in above-mentioned inner corner trim, chamfering or the arc angle, and corresponding formation connects or the local Cast-in-place concrete member of strengthening, and increased substantially the overall performance and the structural-load-carrying capacity of hollow mould shell.
Feature of the present invention is that also glued joint close is arranged on the described hollow mould shell.Like this, when on the hollow mould shell glued joint close being arranged, can strengthen the junction; Simultaneously, when described hollowcore slab be applied to Cavity structural member cast-in-place concrete cored in after, joint close can play the effect that promotes weak part, reduces the chance that member damages.
Feature of the present invention is that also the wall of described hollow mould shell is gauze wire cloth or fleece or fibre mortar wall.Like this, the variation of the material of the wall of hollow mould shell can be satisfied the needs of different situations.
Feature of the present invention is that also the wall of described hollow mould shell is concrete or gauze wire cloth concrete or fleece concrete or fiber concrete wall.Like this, the variation of the material of the wall of hollow mould shell can be satisfied the needs of different situations.
Feature of the present invention is that also the wall of described hollow mould shell is plastics or metal wooden partition.Like this, the variation of the material of the wall of hollow mould shell can be satisfied the needs of different situations.
Feature of the present invention is that also the side shell of described hollow mould shell is provided with the range line pier.Like this, side by hollow mould shell is provided with the range line pier, can carry out accurate range line location with Cavity structural member to hollowcore slab, makes it guarantee between the two distance in application process, thereby guaranteed the width or the thickness of Cast-in-place concrete, made the constructor be easy to floor is carried out quality control.
Feature of the present invention also is the wide 400-1300mm of being of described structure base plate.Like this,, satisfy the demand, greatly facilitate practical application but the production structure baseplate width is arbitrary width between the 400-1300mm according to the different needs of reality.
Feature of the present invention is that also described internal-rib die cavity is an inverted T-shaped internal-rib die cavity.Like this, because the internal-rib die cavity is inverted T-shaped, Cast-in-place concrete has formed the Cast-in-place concrete rib of inverted T-shaped in the internal-rib die cavity, thereby the intensity of superstructure and rigidity are bigger.
Feature of the present invention also is the wide 20-120mm of being of described internal-rib die cavity.Like this, according to the different needs of reality, the arbitrary width that can produce between the wide 20-120mm of being of internal-rib die cavity is satisfied the demand, and greatly facilitates practical application.
Feature of the present invention also is to have in the described structure base plate shaped steel to strengthen.Like this, when having shaped steel to strengthen in the structure base plate, the intensity of structure base plate has obtained strengthening significantly, makes the structure base plate can bear bigger load, fully satisfies the demand.
Feature of the present invention also is to have in the structure base plate at position, described internal-rib die cavity place shaped steel to strengthen.Like this, when having shaped steel to strengthen in the structure base plate at position, internal-rib die cavity place, the intensity of the structure base plate at position, internal-rib die cavity place has obtained significantly strengthening, and makes the structure base plate can bear bigger load, fully satisfies the demand.
Feature of the present invention is that also described shaped steel is band iron, angle steel or i shaped steel.Like this, the variation of shaped steel can be satisfied the needs of different actual conditions.
(5) specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
The present invention as shown in drawings, include hollow mould shell 1, structure base plate 2, hollow mould shell 1 connects into integral body with structure base plate 2, at least two above hollow mould shells 1 are arranged alternately on the structure base plate 2, alternate cavity between the hollow mould shell 1 and structure base plate 2 constitute cast-in-place structural internal-rib die cavity 3, it is characterized in that described hollow mould shell 1 vertical coaxial line arrangement, on vertical lateral surface of at least one side of hollow mould shell 1, be superimposed with the vertical rib 4 of at least one strip, become the inverted T-shaped structure with structure base plate 2 bondings.In each accompanying drawing, 1 is hollow mould shell, and 2 is the structure base plate, and 3 is the internal-rib die cavity, and 4 are vertical rib, below in each accompanying drawing, number identically, its explanation is identical.As shown in Figure 1, its described hollow mould shell 1 vertical coaxial line is arranged, and is superimposed with the vertical rib 4 of at least one strip on vertical lateral surface of at least one side of hollow mould shell 1, becomes the inverted T-shaped structure with structure base plate 2 bondings.
Feature of the present invention is that also described vertical rib 4 is superimposed with vertical lateral surface of whole hollow mould shells 1 of vertically arranging.As shown in Figure 1, its described vertical rib 4 is superimposed with vertical lateral surface of whole hollow mould shells 1 of vertically arranging.
Feature of the present invention is that also described vertical rib 4 is provided with the groove 5 that is used for Cast-in-place concrete, and groove 5 is communicated with internal-rib die cavity 3.As shown in Figure 2, its described vertical rib 4 is provided with the groove 5 that is used for Cast-in-place concrete, and groove 5 is communicated with internal-rib die cavity 3.
Feature of the present invention also is to water superimposed vertical rib after described vertical rib 4 is.As shown in Figure 1, its described vertical rib 4 waters superimposed vertical rib after being.
Feature of the present invention also is to be provided with in the described internal-rib die cavity 3 at least one support draw piece 6, and adjacent cavities formwork 1 or vertical rib 4 are connected to each other.As shown in Figure 2, be provided with support draw piece 6 in its described internal-rib die cavity 3, adjacent cavities formwork 1 is connected to each other.
Feature of the present invention is that also one side at least of described structure base plate 2 is extended with toss 7.As shown in Figure 3, its described structure base plate 2 is extended with toss 7.
Feature of the present invention also is the described toss 7 wide 10-110mm of being.As shown in Figure 3, its described toss 7 is wide is 110mm.
Feature of the present invention is that also at least one non-prestressed or prestressed reinforcing bar, steel wire or steel strand 8 are arranged in described hollow mould shell 1 or structure base plate 2 or the vertical rib 4.As shown in Figure 4, be provided with prestressed reinforcing bar 8 in its described vertical rib 4 and the structure base plate 2.Feature of the present invention also be on the wall of described hollow mould shell 1 or have on the structure base plate 2 in the cavity of reinforcing rib 9 or hollow mould shell 1 supporting rod 10 is arranged or the floor 11 of putting more energy at least a.As shown in Figure 5, the wall of its described hollow mould shell 1 is provided with reinforcing rib 9, is provided with the supporting rod 10 and the floor 11 of putting more energy in the cavity of hollow mould shell 1.
Feature of the present invention also be described reinforcing rib 7 or/and supporting rod 10 or/and be provided with reinforcing bar 8 or steel mesh reinforcement 12 in the floor 11 of putting more energy into.As shown in Figure 5, be provided with reinforcing bar 8 in its described supporting rod 10.
Feature of the present invention is that also described reinforcing bar 8 or steel mesh reinforcement 12 expose outside the hollow mould shell 1.As shown in Figure 5, its described reinforcing bar 8 exposes outside the hollow mould shell 1.
Feature of the present invention also is on the described hollow mould shell 1 fluted 13.As shown in Figure 6, on its described hollow mould shell 1 fluted 13.
Feature of the present invention also is to have in the described groove 13 at least a in back superimposed reinforcing bar, steel wire or the steel strand 8.As shown in Figure 6, be provided with the superimposed reinforcing bar 8 in back in its described groove 13.
Feature of the present invention is that also described hollow mould shell 1 is integral finish hollow mould shell 1.As shown in Figure 6, its described hollow mould shell 1 is an integral finish hollow mould shell 1.
Feature of the present invention is that also described hollow mould shell 1 is the opening of at least two amalgamations or form unit 14 compositions of remaining silent.As shown in Figure 7, its described hollow mould shell 1 is two amalgamations open shutting spare 14 is formed.
Feature of the present invention is that also described form unit 14 parts are the hard shell, and part is soft shell, perhaps is filled with light material 15 in it.As shown in Figure 7, be filled with light material 15 in its described form unit 14.
Feature of the present invention is that also described hollow mould shell 1 is the sealed hollow formwork.As shown in Figure 4, its described hollow mould shell 1 is the sealed hollow formwork.
Feature of the present invention also is to contain reinforce 16 in described hollow mould shell 1 or structure base plate 2 or the vertical rib 4, hollow mould shell 1 is extended with reinforce 16 and is anchored in structure base plate 2 or the vertical rib 4, perhaps there is reinforce 16 to be anchored in hollow mould shell 1 or the vertical rib 4 in the structure base plate 2, has reinforce 16 to be anchored in hollow mould shell 1 or the structure base plate 2 in the perhaps vertical rib 4.As shown in Figure 8, contain reinforce 16 in its described hollow mould shell 1, hollow mould shell 1 is extended with reinforce 16 and is anchored in the structure base plate 2.
Feature of the present invention is that also described structure base plate 2 and vertical rib 4 are the structure base plate or the vertical rib of cement mortar or concrete or steel bar concrete or steel mesh reinforcement concrete.As shown in Figure 8, its described structure base plate 2 and vertical rib 4 are the structure base plate and the vertical rib of cement mortar.
Feature of the present invention is that also described vertical rib 4 is provided with range line pier 17.As shown in Figure 8, its described vertical rib 4 is provided with range line pier 17.
Feature of the present invention is that also described hollow mould shell 1 is provided with at least one in projection 18, reinforcing bar filler strip 19, pit 20 or the hole 21.As shown in Figure 9, its described hollow mould shell 1 is provided with projection 18, reinforcing bar filler strip 19 and pit 20.
Feature of the present invention is that also described hollow mould shell 1 is prefabricated component, becomes whole with 2 gluings of structure base plate.As shown in Figure 4, its described hollow mould shell 1 is a prefabricated component, becomes whole with 2 gluings of structure base plate.
Feature of the present invention is that also the top board 22 of described hollow mould shell 1 is superimposed sheet.As shown in Figure 9, the top board 22 of its described hollow mould shell 1 is a superimposed sheet.
Feature of the present invention is that also described hollow mould shell 1 is provided with at least one in inner corner trim 23, chamfering 24 or the arc angle 25.As shown in figure 10, be provided with inner corner trim 23, chamfering 24 and arc angle 25 simultaneously on its described hollow mould shell 1.
Feature of the present invention is that also glued joint close 26 is arranged on the described hollow mould shell 1.As shown in figure 11, on its described hollow mould shell 1 glued joint close 26 is arranged.
Feature of the present invention is that also the wall of described hollow mould shell 1 is gauze wire cloth or fleece or fibre mortar wall.As shown in Figure 8, the wall of its described hollow mould shell 1 is the wire mesh mortar wall.
Feature of the present invention is that also the wall of described hollow mould shell 1 is concrete or gauze wire cloth concrete or fleece concrete or fiber concrete wall.As shown in figure 10, the wall of its described hollow mould shell 1 is a fiber concrete wall.
Feature of the present invention is that also the wall of described hollow mould shell 1 is plastics or metal wooden partition.As shown in Figure 3, the wall of its described hollow mould shell 1 is the plastics wooden partition.
Feature of the present invention is that also the side shell of described hollow mould shell 1 is provided with range line pier 17.As shown in figure 11, the side shell of its described hollow mould shell 1 is provided with range line pier 17.
Feature of the present invention also is the described structure base plate 2 wide 400-1300mm of being.As shown in figure 11, its described structure base plate 2 is wide is 1300mm.
Feature of the present invention is that also described internal-rib die cavity 3 is inverted T-shaped internal-rib die cavity.As shown in figure 11, its described internal-rib die cavity 3 is an inverted T-shaped internal-rib die cavity.
Feature of the present invention also is the described internal-rib die cavity 3 wide 20-120mm of being.As shown in figure 11, its described internal-rib die cavity 3 is wide is 120mm.
Feature of the present invention also is to have in the described structure base plate 2 shaped steel 27 to strengthen.As shown in figure 11, there is shaped steel 27 to strengthen in its described structure base plate 2.
Feature of the present invention also is to have in the structure base plate 2 at position, described internal-rib die cavity 3 place shaped steel 27 to strengthen.As shown in figure 11, there is shaped steel 27 to strengthen in the structure base plate 2 at its position, described internal-rib die cavity 3 place.
Feature of the present invention is that also described shaped steel 27 is band iron, angle steel or i shaped steel.As shown in figure 11, its described shaped steel 27 is band iron.
During the invention process, can make hollow mould shell 1 in advance with cement mortar and fiberglass gridding cloth earlier, then with cement mortar or concrete and gauze wire cloth making structure base plate 2 and vertical rib 4,, prefabricated hollow mould shell 1 is fastened on it not during setting and harden at it, and make hollow mould shell 1 superimposed with vertical rib 4, be stuck together into integral body, after treating its setting and harden, maintenance promptly gets the hollowcore slab Cavity structural member to stipulating the length of time.