CN103967127B - The different strong coupled column assembled beam frame of built-in stem stem and constructional method thereof - Google Patents
The different strong coupled column assembled beam frame of built-in stem stem and constructional method thereof Download PDFInfo
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- CN103967127B CN103967127B CN201410220892.6A CN201410220892A CN103967127B CN 103967127 B CN103967127 B CN 103967127B CN 201410220892 A CN201410220892 A CN 201410220892A CN 103967127 B CN103967127 B CN 103967127B
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Abstract
What the present invention relates to is different strong coupled column assembled beam frame and the constructional method thereof of built-in stem stem, the different strong coupled column assembled beam frame of this kind of built-in stem stem has built-in asymmetric reinforcing bar or moulds the armored concrete coupled column of bone prestressed concrete compound beam, built-in stem stem, compound beam is horizontally set between coupled column, and the two adopts node to connect in intersection; Stem stem is by reinforcing bar or moulds bone and is formed together with concrete depositing, and vertical muscle is distributed in around stem stem, and stirrup is wrapped in outside vertical muscle, and stem stem is placed in armored concrete post; Reinforcing bar in compound beam or mould bone transverse stiffener is set, across middle place reinforcing bar or mould the position of bone in the bottom of compound beam, bearing place reinforcing bar or mould the position of bone in the top of compound beam, presstressed reinforcing steel is arranged in compound beam along its length; Bean column node place presstressed reinforcing steel passes from the both sides of stem stem, in coupled column end stretch-draw and anchoring. The present invention can improve the axial bearing property of post, and combination column cross-section size is little, stem stem except can except field cast-in-place, also can in prefabrication, in-site installation, reduces workload, shortens construction period.
Description
Technical field
What the present invention relates to is the house frame structure in civil engineering structure field, and what be specifically related to is different strong coupled column assembled beam frame and the constructional method thereof of built-in stem stem.
Background technology
Conventional building frame construction mostly is reinforced concrete frame and steel frame, it may be achieved span less, element bearing capacity is lower, applies and have significant limitation in actual engineering. in recent years along with building develops to direction higher, that span is bigger and heavily loaded, conventional structure system faces new challenge. people start to build the structural system that rigidity is bigger, supporting capacity is stronger, concrete will add reinforcing bar, concrete and reinforcing bar are bonded together, cooperative transformation is by power, forming unitized construction, its rigidity is big, easy construction, compensate for the deficiency of conventional skeleton construction and defect, widespread use in multi-rise building structure for the moment. it is known that, the application of prestress technology in structural system can make structure realize bigger span, but the layout of presstressed reinforcing steel often contradicts with other components, as to the frame system Shi Hanzhang adopting steel flanged beam steel framed concrete beam and steel flanged beam Combined Steel And Concrete Column to form, presstressed reinforcing steel will unavoidably pass in post reinforcing bar, produce node to weaken greatly, simultaneously the arrangements of presstressed reinforcing steel in beam can be subject to the constraint of built-in profile steel, for avoiding this kind of disadvantageous effect, people construct a kind of using open web type steel angle concrete column as frame column, structural system using prestress steel framed concrete beam as framework beam, presstressed reinforcing steel can pass in angle steel, stretch-draw and anchoring is realized at post end, although this kind of system solves the Layout Problem of presstressed reinforcing steel, but the reinforcing bar in steel angle concrete column needs welding, construction relative complex, and the energy dissipation capacity of this type of post is general, hysteresis loop is not full, anti seismic efficiency is not obvious, often bigger than normal for meeting column cross-section size in the Structure of need system of axial compression ratio, it is easy to form fat post, take very big space, therefore for making column cross-section size reduce, do not affect the layout of presstressed reinforcing steel simultaneously, build new structural system extremely urgent.
Summary of the invention
It is an object of the invention to provide the different strong coupled column assembled beam frame of built-in stem stem, it is big for solving the cross section size of existing general armored concrete post, in compound beam, presstressed reinforcing steel is in the problem of the more difficult layout of node, it is a further object to provide the constructional method of the different strong coupled column assembled beam frame of this kind of built-in stem stem.
The technical solution adopted for the present invention to solve the technical problems is: the different strong coupled column assembled beam frame of this kind of built-in stem stem has built-in asymmetric reinforcing bar or moulds the armored concrete coupled column of bone prestressed concrete compound beam, built-in stem stem, compound beam is horizontally set between coupled column, and the two adopts node to connect in intersection; Stem stem is by reinforcing bar or moulds bone and is formed together with concrete depositing, and vertical muscle is distributed in around stem stem, and stirrup is wrapped in outside vertical muscle, and stem stem is placed in armored concrete post; Compound beam section form is rectangle, built-in reinforcing bar or to mould bone be H type, reinforcing bar or mould bone and arrange transverse stiffener, across middle place reinforcing bar or mould the position of bone in the bottom of compound beam, bearing place reinforcing bar or mould the position of bone in the top of compound beam, presstressed reinforcing steel is arranged in compound beam along its length; Bean column node place presstressed reinforcing steel passes from the both sides of stem stem, in coupled column end stretch-draw and anchoring, and H profile steel in compound beam or mould bone and the reinforcing bar in stem stem or mould bone and be connected.
Such scheme builds high-strength concrete in the stem stem of coupled column, armored concrete post adopts conventional concrete, form special strong concrete coupled column, can further improve the axial bearing property of post, such cross section size therefore can be made under same external force less, high-strength concrete stem stem is except can except field cast-in-place, also can in prefabrication, in-site installation, reduces workload, shortens construction period.
In such scheme the H profile steel in compound beam or mould bone adopt honeycomb type polygonal beam, H profile steel or the web between moulding the transverse stiffener of bone open hole, cross section, hole is circular or hexagon or octagon, not only can alleviate the deadweight of beam, stress is avoided to concentrate, saving steel, during construction, wireline can pass simultaneously, is convenient to lifting.
In such scheme, the arrangement form of presstressed reinforcing steel in compound beam is shaped form or broken-line type, and presstressed reinforcing steel passes on reinforcing bar or the transverse stiffener moulded in bone, presstressed reinforcing steel and reinforcing bar or to mould bone be correlation form.
In such scheme, the arrangement form of presstressed reinforcing steel in compound beam is shaped form, and presstressed reinforcing steel is arranged in outside reinforcing bar, presstressed reinforcing steel and reinforcing bar or to mould bone be non-correlation form.
In such scheme, in compound beam, concrete divides two layers to build, conventional concrete built by bottom, high-strength concrete is built on upper strata, form special strong concrete compound beam, like this, concrete compressive property can be given full play to, compound beam across in bear pressure zone within the scope of sagging moment be high-strength concrete, tensile region is then the concrete of relatively low strength, can greatly improve the supporting capacity of compound beam, increases office's pressure performance of prestressed concrete at node place simultaneously.
The constructional method of the different strong coupled column assembled beam frame of above-mentioned built-in stem stem:
First the basis of all frame set zygostyles is carried out by design, simultaneously by the cruciform in stem stem or H profile steel bone or mould bone, the longitudinal FRP muscle of stem stem and the longitudinal reinforcing bar of armored concrete post and be reliably anchored in basis, the stirrup of colligation stem stem and outside armored concrete post, after all frame column colligations, the concrete building stem stem and armored concrete post reaches the design height of bottom;
To reinforcing bar or mould bone and splice, for keeping the reinforcing bar at node place or mould the continued integrity of bone, should avoid splicing at bean column node place, reinforcing bar or mould bone through node and splice within the scope of the 1/2-1/3 of two layers of post, ensure that integrity, moment of flexure on this scope post is less simultaneously, is applicable to splicing;
In the beam good by prefabrication, H profile steel or FRP mould bone and are transported to scene, first the reinforcing bar of beam-ends or mould bone and the reinforcing bar in stem stem or mould bone and be reliably connected, then at the reinforcing bar of assembled remainder successively or mould bone, if the reinforcing bar of whole beam or mould bone and spliced and be connected with stem stem again, bringing very big trouble to construction, end not easily connects; Then in specified design good position, transverse stiffener is installed, if presstressed reinforcing steel and reinforcing bar or mould the arrangement form adopting between bone and associating, the ribbed stiffener of evagination to be opened hole in advance, center, hole line on all ribbed stiffeners and presstressed reinforcing steel is linear is consistent; If adopting the arrangement form of non-association, ribbed stiffener only plays overall stable effect, also need not open hole thereon without evagination; Then arrangement prestress muscle and corollary apparatus thereof, vertical muscle in beam is arranged in colligation after locating, the stirrup in colligation beam and node place, then casting concrete, and after maintenance reaches certain intensity, stretch-draw and anchoring prestress muscle, form first floor frame system after form removal;
During compound beam employing special strong concrete compound beam, in beam, concrete divides 2 layers to build, and conventional concrete built by bottom, and high-strength concrete is built on upper strata;
Then constructing successively the frame system of other layers, until top layer, top layer stem stem stretches out the certain distance of top layer, it is ensured that top layer stem stem can fully undertake the effect of tension and compression internal force.
Useful effect:
1. the axial compression that in the present invention, coupled column can bear is bigger, can obviously reduce the cross section size of post, avoids occurring too too fat to move fat post in system;
2. special strong concrete coupled column of the present invention, can further improve the axial bearing property of post, and such cross section size therefore can be made under same external force less, high-strength or super high strength concrete stem stem except can except field cast-in-place, also can in prefabrication, in-site installation, reduce workload, shorten construction period.
3. the span that present configuration can realize is big, and maximum span can reach about 30 meters. In compound beam, presstressed reinforcing steel becomes parabolic type to arrange, can produce uniform counter-force to offset part external load. Presstressed reinforcing steel is dissolved in compound beam, and beam can be made in construction process to produce antiarch, forms, in use stage and shaped steel concrete, distortion and the crack that one can reduce compound beam;
4. in beam of the present invention, built-in profile steel adopts broken-line type, arrange different from the shaped steel in conventional shaped steel concrete member, in asymmetric arrangement in frame combination beam tensile region, the mechanical property of steel can be given full play to, shaped steel in ultimate load effect lower section can enter surrender by total cross section, edge, pressure zone concrete reaches capacity compressive strain, gives full play to the maximum efficiency of steel.
5. the transverse stiffener being arranged on shaped steel in beam of the present invention not only can guarantee the stable of girder steel, can be used as the positioning element of presstressed reinforcing steel simultaneously, can being located by presstressed reinforcing steel when constructing, thus be convenient to pre-stress construction, in shaped steel broken line junction, ribbed stiffener also plays ligation.
6. the present invention has good ductility, the anti-wind of system, good seismic performance, applies under being adapted at the complicated environment such as coastal and seismic region.
7. special strong concrete compound beam of the present invention can give full play to concrete compressive property, compound beam across in bear within the scope of sagging moment pressure zone and adopt high-strength concrete, tensile region adopts the concrete of relatively low strength, the supporting capacity of compound beam can be improved, increase office's pressure performance of prestressed concrete simultaneously at node place.
8. shaped steel of the present invention is in prefabrication, on-the-spot splicing and installation, convenient construction, and construction quality is easy to ensure.
9. the shaped steel in compound beam of the present invention can adopt honeycomb type folding beam, and hole opened by the web between beam ribbed stiffener, and cross section is circular, hexagon or octagon, not only can alleviate the deadweight of beam, avoid stress to concentrate, save steel simultaneously, during construction, wireline can pass, and is convenient to lifting.
Four, accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the arrangement form figure that presstressed reinforcing steel and reinforcing bar in compound beam of the present invention/mould bone does not associate;
Fig. 3 is A-A sectional view in Fig. 2;
Fig. 4 is B-B sectional view in Fig. 2;
Fig. 5 is the vertical view of Fig. 2;
Fig. 6 is the arranged in association form figure of presstressed reinforcing steel curve in the present invention, steel pipe/mould fracture line;
Fig. 7 is the arranged in association form figure of presstressed reinforcing steel in the present invention, steel pipe/mould fracture line;
Fig. 8 is beam-column node schematic perspective view of the present invention;
Fig. 9 is the present invention's another kind of bean column node schematic perspective view;
Figure 10 is that prefabricated core column connects relation schematic diagram;
Figure 11 is stem stem appearance spination and spination template schematic diagram;
Figure 12 forever erects to cover core connector of steel tube schematic diagram;
Figure 13 is the coupled column schematic diagram that built-in cross-shaped steel bone/FRP moulds bone;
Figure 14 is the special-shaped coupled column schematic diagram that built-in open web type reinforcing bar/FRP moulds bone;
Figure 15 is that in stem stem and beam, presstressed reinforcing steel arranges schematic diagram;
Figure 16 is the spliced map of compound beam built-in profile steel straight-line segment;
Figure 17 is the spliced map of compound beam built-in profile steel broken line;
Figure 18 is the honeycomb polygonal beam schematic diagram that hole opened by hexagon.
1 coupled column 2 compound beam 3 stem stem 4 reinforcing bar 5 concrete 6 is indulged muscle 7 stirrup 8 ribbed stiffener 9 presstressed reinforcing steel 10 reinforcing bar 11 hole 12 and is erected to cover core steel pipe 13 stem stem connection end 14 crab-bolt 15 band spination template.
Five, embodiment:
Below in conjunction with accompanying drawing, the present invention is described further:
Embodiment 1:
As shown in Figure 1, the different strong coupled column assembled beam frame of this kind of built-in stem stem has built-in asymmetric reinforcing bar or moulds the armored concrete coupled column 1 of bone prestressed concrete compound beam 2, built-in stem stem, compound beam 2 is horizontally set between coupled column 1, and the two adopts node to connect in intersection. Shown in composition graphs 8, Figure 15, bean column node place presstressed reinforcing steel 9 passes from the both sides of stem stem 3, in coupled column end stretch-draw and anchoring, H profile steel in compound beam 2 is connected with the reinforcing bar 4 in stem stem, certainly, H profile steel in compound beam can also adopt the mode erected with stem stem and be connected to cover core steel pipe 12, consults Fig. 9. In present embodiment, the armored concrete post in stem stem 3 and outside thereof adopts the concrete 5 of same model.
Shown in Figure 13, stem stem 3 by reinforcing bar 4 or mould bone be cast in concrete 5 together with formed, vertical muscle 6 is distributed in stem stem 3 around, and stirrup 7 is wrapped in outside vertical muscle 6, and stem stem 3 is placed in armored concrete post; Coupled column 1 section form can be square, certainly rectangle and T-shaped can also be adopted, wherein T-shaped is as shown in figure 14, the reinforcing bar 4 forming stem stem can adopt steel flanged beam reinforcing bar and open web type reinforcing bar two kinds, the vertical muscle 6 of stem stem adopts nonmetal FRP muscle, and FRP muscle is wrapped in the surrounding of stem stem reinforcing bar, not by extraneous interference, can giving full play to the advantage that its tensile strength is high, stem stem stirrup 7 adopts HRB400 level reinforcing bar. In present embodiment, reinforcing bar 4 is cross-shaped steel bone. The steel flanged beam that the present invention can also adopt FRP plate to form moulds bone and open web type moulds two kinds, bone, moulds bone and flexing does not occur under concrete constraint, can give full play to the feature of its high-strength light, at reinforcing bar or mould the shearing key that bone surrounding arranges anti-concrete slippage.
Composition graphs 2, Fig. 3, Fig. 4, compound beam section form is rectangle, in compound beam, reinforcing bar 10 is H profile steel, adopt the arranged in form of broken line in the tensile region of beam, in cross section in asymmetric arrangement, arrange different with the shaped steel in conventional shaped steel concrete member, across the middle place H profile steel position of bone in the bottom of beam, the bearing place H profile steel position of bone is in the top of beam, shaped steel in ultimate load effect lower section can enter surrender by total cross section, edge, pressure zone concrete reaches capacity compressive strain, give full play to the maximum efficiency of steel, the space that the H profile steel bone of asymmetric arrangement takies in beam is little, and be connected with the reinforcing bar 4 in stem stem 3 at node place and relatively to mate. the shearing key of anti-concrete slippage it is provided with at H profile steel bone upper and lower edge of a wing place. arrangement prestress muscle 9 in compound beam 2, being furnished with between presstressed reinforcing steel 9 with built-in H profile steel bone 10 associates and associates 2 kinds of forms with non-, in correlation form, the layout of presstressed reinforcing steel comprises shaped form and broken-line type, the ribbed stiffener of presstressed reinforcing steel 9 in reinforcing bar 10 passes, shaped form consults Fig. 6, broken-line type consults Fig. 7, in beam on H profile steel bone between arrange the transverse stiffener 8 of evagination at a certain distance, suitable position Kai Dong on transverse stiffener 8, as the positioning element of presstressed reinforcing steel, presstressed reinforcing steel can be located when constructing, thus be convenient to the construction of presstressed reinforcing steel. in non-correlation form, the layout of presstressed reinforcing steel adopts shaped form, as shown in Figure 2, present embodiment is non-arranged in association, composition graphs 3, Fig. 4, presstressed reinforcing steel 9 is arranged in outside reinforcing bar 10, can produce uniform counter-force to offset part external load, the same with the layout of common prestressed concrete, need presstressed reinforcing steel 9 carries out on-the-spot location, it is not subject to the constraint of ribbed stiffener 8 and affects. the transverse stiffener 8 arranged in H profile steel in beam, not only can be used as the positioning element of presstressed reinforcing steel 9, and can guarantee the stability of H profile steel, also play ligation at shaped steel broken line junction ribbed stiffener 8.
Compound beam of the present invention can also adopt and mould bone, moulds H shape bone and FRP transverse stiffener that bone can adopt FRP plate to form, and the presstressed reinforcing steel in beam can be underrelaxation steel strand or prestressed FRP rebar.
The present invention can on H profile steel bone or the web between moulding the transverse stiffener of bone the hole 11 of opened round, hexagon or octagon, make the polygonal beam of honeycomb type, the deadweight of beam can be alleviated, Figure 18 is the honeycomb polygonal beam schematic diagram that hole opened by hexagon.
Broken-line type H profile steel bone 10 or mould bone can in prefabrication, H profile steel bone 10 in-site installation adopts the mixed connection method of welding and bolt, the connecting method of built-in H profile steel bone 10 straight-line segment is see Figure 16, the connecting method of broken line is see Figure 17, and H shape bone in-site installation adopts the mixed connection method of bonding and bolt.
The constructional method of the present embodiment:
First the basis of all frame set zygostyles 1 is carried out by design, simultaneously by the cruciform in stem stem 3 or H profile steel bone 4 or mould bone, the longitudinal FRP muscle of stem stem and the vertical muscle of armored concrete post and be reliably anchored in basis, the stirrup 7 of colligation stem stem and outside armored concrete post, after all frame column colligations, the concrete building stem stem 3 and outside armored concrete post reaches the design height of bottom.
To reinforcing bar or mould bone and splice, for keeping the reinforcing bar at node place or mould the continued integrity of bone, should avoid splicing at bean column node place, reinforcing bar or mould bone through node and splice within the scope of the 1/2-1/3 of two layers of post, ensure that integrity, moment of flexure on this scope post is less simultaneously, is applicable to splicing.
In the beam good by prefabrication, H profile steel bone 10 or FRP mould bone and are transported to scene, first the reinforcing bar 10 of beam-ends or mould bone and the reinforcing bar 4 in stem stem or mould bone and be reliably connected, then at the reinforcing bar of assembled remainder successively or mould bone, if the reinforcing bar of whole beam or mould bone and spliced and be connected with stem stem 3 again, bringing very big trouble to construction, end not easily connects. Then in the position that specified design is good, transverse stiffener 8 is installed, if presstressed reinforcing steel 9 and reinforcing bar 10 or mould the arrangement form adopting between bone and associating, being opened hole on the ribbed stiffener 8 of evagination in advance, center, hole line and the presstressed reinforcing steel 9 on all ribbed stiffeners linear (curve or broken line) is consistent; If adopting the arrangement form of non-association, ribbed stiffener 8 only plays overall stable effect, also need not open hole thereon without evagination. Then arrangement prestress muscle 9 and corollary apparatus thereof, vertical muscle in beam is arranged in colligation after locating, the stirrup in colligation beam and node place, then casting concrete, after maintenance reaches certain intensity, stretch-draw and anchoring prestress muscle, form first floor frame system after form removal.
Then constructing successively the frame system of other layers, until top layer, top layer stem stem 3 stretches out the certain distance of top layer, it is ensured that top layer stem stem 4 can fully undertake the effect of tension and compression internal force.
Embodiment 2:
The different strong coupled column assembled beam frame of this kind of built-in stem stem has built-in asymmetric reinforcing bar or moulds the armored concrete coupled column 1 of bone prestressed concrete compound beam 2, built-in stem stem, compound beam 2 is horizontally set between coupled column 1, and the two adopts node to connect in intersection; Stem stem 3 is by reinforcing bar 4 or moulds bone and is formed together with concrete depositing, and vertical muscle 6 is distributed in around stem stem, and stirrup 7 is wrapped in outside vertical muscle 6, and stem stem 3 is placed in armored concrete post; Compound beam 2 section form is rectangle, reinforcing bar 10 or to mould bone be H type, reinforcing bar 10 or mould bone and arrange transverse stiffener 8, across middle place reinforcing bar or mould the position of bone in the bottom of compound beam, bearing place reinforcing bar or mould the position of bone in the top of compound beam, presstressed reinforcing steel 9 is arranged in compound beam along its length; Bean column node place presstressed reinforcing steel 9 passes from the both sides of stem stem 3, in coupled column end stretch-draw and anchoring, and H profile steel bone in compound beam 2 or mould bone and the reinforcing bar 4 in stem stem or mould bone and be connected.
Building high-strength concrete in the stem stem 3 of coupled column in the present embodiment, armored concrete post adopts conventional concrete, forms special strong concrete coupled column.
The constructional method of the present embodiment:
First the basis of all frame set zygostyles is carried out by design, simultaneously by the cruciform in stem stem 3 or H profile steel bone 4 or mould bone, the longitudinal FRP muscle of stem stem and the longitudinal reinforcing bar of armored concrete post and be reliably anchored in basis, for not affecting the colligation of stem stem stirrup 7, the longitudinal reinforcing bar length of armored concrete post enough connects, splice reinforcing bar or mould bone, connect the longitudinal FRP muscle of stem stem, colligation stem stem stirrup 7. Owing to stem stem is different with the concrete of armored concrete post, so needing first Zhi Mo to build stem stem high-strength concrete. The template made is transported to scene, and template internal surface does toothing, and 4 pieces of templates surround closed space, and adjustment is fixed after well, starts casting concrete to the height designed, and this height need to be less than one layer of bottom elevation. Concrete reaches form removal after certain intensity, forms spination on stem stem 3 surface like this, is convenient to the concrete binding of outside armored concrete post good. Then the vertical muscle of armored concrete post is connected, colligation armored concrete column tie-bar, forms armored concrete post Steel Reinforcement Cage, after all frame column colligations, the concrete 5 starting to build outside arrangement of reinforcement post reaches the design height of bottom, and this is highly less than one layer of bottom elevation.
To reinforcing bar 4 or mould bone and splice, for keeping the reinforcing bar at node place or mould the continued integrity of bone, should avoid splicing at bean column node place, reinforcing bar 4 or mould bone through node and splice within the scope of the 1/2-1/3 of two layers of post, ensure that integrity, moment of flexure on this scope post is less simultaneously, is applicable to splicing.
In the beam good by prefabrication, H profile steel bone or FRP mould bone and are transported to scene, first the reinforcing bar 10 of beam-ends or mould bone and the reinforcing bar 4 in stem stem or mould bone and be reliably connected, then at the reinforcing bar of assembled remainder successively or mould bone, if the reinforcing bar 10 of whole beam or mould bone and spliced and be connected with stem stem 3 again, bringing very big trouble to construction, end not easily connects. Reinforcing bar 10 or mould bone and reinforcing bar in stem stem 4 or mould after bone is connected intact and splicing, next muscle and stirrup 7 can be indulged by colligation stem stem FRP, mounting strap spination template 15, opens hole at beam reinforcing bar or the situation template of moulding bone, can build stem stem high-strength concrete after template is fixing. Transverse stiffener 8 is installed in the position that specified design is good on beam simultaneously, if presstressed reinforcing steel 9 and reinforcing bar or mould the arrangement form adopting between bone and associating, adopt the ribbed stiffener 8 of evagination, being opened hole on ribbed stiffener 8 in advance, center, hole line and the presstressed reinforcing steel on all ribbed stiffeners linear (curve or broken line) is consistent; If adopting the arrangement form of non-association, ribbed stiffener 8 only plays overall stable effect, also need not open hole thereon without evagination. Then arrangement prestress muscle 9 and corollary apparatus thereof, vertical muscle in beam is arranged in colligation after locating. Reaching after certain intensity until core column concrete, form removal, colligation armored concrete post is indulged in muscle and stirrup, beam and the stirrup at node place, and then casting concrete, after maintenance reaches certain intensity, stretch-draw and anchoring prestress muscle, form first floor frame system after form removal.
Then constructing successively according to above-mentioned sequence of construction the frame system of other layers, until top layer, top layer stem stem 3 stretches out the certain distance of top layer, it is ensured that top layer stem stem 3 can fully undertake the effect of tension and compression internal force.
Embodiment 3:
The different strong coupled column assembled beam frame of this kind of built-in stem stem has built-in asymmetric reinforcing bar or moulds the armored concrete coupled column 1 of bone prestressed concrete compound beam 2, built-in stem stem, compound beam 2 is horizontally set between coupled column 1, and the two adopts node to connect in intersection; Stem stem 3 is by reinforcing bar 4 or moulds bone and is formed together with concrete depositing, and vertical muscle 6 is distributed in stem stem 3 around, and stirrup 7 is wrapped in outside vertical muscle 6, and stem stem 3 is placed in armored concrete post; Compound beam 2 section form is rectangle, reinforcing bar 10 or to mould bone be H type, reinforcing bar 10 or mould bone and arrange transverse stiffener 8, across middle place reinforcing bar or mould the position of bone in the bottom of compound beam 2, bearing place reinforcing bar or mould the position of bone in the top of compound beam 2, presstressed reinforcing steel 9 is arranged in compound beam 2 along its length; Bean column node place presstressed reinforcing steel 9 passes from the both sides of stem stem 3, in coupled column end stretch-draw and anchoring, and H profile steel in compound beam or mould bone and be connected to cover core steel pipe 12 with erecting in stem stem. Building high-strength concrete in the stem stem 3 of coupled column, armored concrete post adopts conventional concrete, forms special strong concrete coupled column.
The constructional method of the present embodiment:
First the basis of all frame set zygostyles is carried out by design, simultaneously by the cruciform in stem stem 3 or H profile steel bone 4 or mould bone, the longitudinal FRP muscle of stem stem and the longitudinal reinforcing bar of armored concrete post and be reliably anchored in basis, for not affecting the colligation of stem stem stirrup 7, the longitudinal reinforcing bar length of armored concrete post enough connects, splice reinforcing bar or mould bone, connect the longitudinal FRP muscle of stem stem, colligation stem stem stirrup 7. Owing to stem stem is different with the concrete of armored concrete post, so needing first Zhi Mo to build stem stem high-strength concrete. The band spination template 15 made is transported to scene, and template internal surface does toothing, and 4 pieces of templates surround closed space, and adjustment is fixed after well, starts casting concrete 5 to the height designed, and this height need to be less than one layer of bottom elevation. Concrete reaches form removal after certain intensity, forms spination on stem stem 3 surface like this, is convenient to the armored concrete post concrete binding with outside good. Then the vertical muscle of armored concrete post is connected, colligation armored concrete column tie-bar, forms armored concrete post Steel Reinforcement Cage, after all coupled column colligations, the concrete starting to build armored concrete post reaches the design height of bottom, and this is highly less than one layer of bottom elevation.
To reinforcing bar 4 or mould bone and splice, for keeping the reinforcing bar at node place or mould the continued integrity of bone, should avoid splicing at bean column node place, reinforcing bar 4 or mould bone through node and splice within the scope of the 1/2-1/3 of two layers of post, ensure that integrity, moment of flexure on this scope post is less simultaneously, is applicable to splicing. The vertical muscle of rear colligation stem stem FRP and stirrup 7 are spliced, mounting strap spination template 15, for avoiding that node place template opens hole, adopting at node place to erect replaces template to be enclosed within stem stem 3 to cover core steel pipe 12, erect to overlapping the template that core steel pipe about 12 is band spination, cover core steel pipe is stayed on stem stem 3 forever, be convenient to afterwards with the reinforcing bar in beam or mould bone and be connected. Reach after certain intensity until core column concrete, form removal.
In the beam good by prefabrication, H profile steel bone or FRP mould bone and are transported to scene, first the reinforcing bar of beam-ends or mould bone and be reliably connected to overlapping core steel pipe 12 with erecting on stem stem, then at the reinforcing bar of assembled remainder successively or mould bone, if the reinforcing bar 10 of whole beam or mould bone and spliced and be connected with stem stem 3 again, bringing very big trouble to construction, end not easily connects. Reinforcing bar or mould bone with stem stem erects to cover core steel pipe 12 be connected intact and splicing after, transverse stiffener 8 is installed in the position that specified design is good on beam, if presstressed reinforcing steel 9 and reinforcing bar 10 or mould the arrangement form adopting between bone and associating, adopt the ribbed stiffener 8 of evagination, being opened hole on ribbed stiffener 8 in advance, center, hole line and the presstressed reinforcing steel on all ribbed stiffeners 8 linear (curve or broken line) is consistent; If adopting the arrangement form of non-association, ribbed stiffener 8 only plays overall stable effect, also need not open hole thereon without evagination. Then arrangement prestress muscle 9 and corollary apparatus thereof, vertical muscle in beam is arranged in colligation after locating, the vertical muscle of armored concrete post and the stirrup at stirrup and node place outside colligation stem stem simultaneously, then casting concrete, after maintenance reaches certain intensity, stretch-draw and anchoring prestress muscle, form first floor frame system after form removal.
Built-in asymmetric shaped steel/FRP prestressed concrete compound beam can adopt special strong concrete compound beam, in beam, concrete can divide 2 layers to build, conventional concrete built by bottom, high-strength concrete is built on upper strata, concrete compressive property can be given full play to, compound beam across in bear pressure zone within the scope of sagging moment be high-strength concrete, tensile region is then the concrete of relatively low strength, can greatly improve the supporting capacity of compound beam; The high-strength concrete on beam top may extend into node place, and tension of prestressed tendon and anchoring are positioned at top just, can increase the ability of concrete anti-office pressure.
Then constructing successively according to above-mentioned sequence of construction the frame system of other layers, until top layer, top layer stem stem stretches out the certain distance of top layer, it is ensured that top layer stem stem can fully undertake the effect of tension and compression internal force.
Embodiment 4:
The different strong coupled column assembled beam frame of this kind of built-in stem stem has built-in asymmetric reinforcing bar or moulds the armored concrete coupled column 1 of bone prestressed concrete compound beam 2, built-in stem stem, compound beam 2 is horizontally set between coupled column 1, and the two adopts node to connect in intersection; Stem stem 3 by reinforcing bar 4 or mould bone be cast in concrete 5 together with formed, vertical muscle is distributed in around stem stem, and stirrup is wrapped in outside vertical muscle, and stem stem is placed in armored concrete post; Compound beam 2 section form is rectangle, reinforcing bar 10 or to mould bone be H type, reinforcing bar 10 or mould bone and arrange transverse stiffener 8, across middle place reinforcing bar or mould the position of bone in the bottom of compound beam 2, bearing place reinforcing bar or mould the position of bone in the top of compound beam 2, presstressed reinforcing steel 9 is arranged in compound beam 2 along its length; Bean column node place presstressed reinforcing steel passes from the both sides of stem stem 3, in coupled column end stretch-draw and anchoring, and H profile steel in compound beam or mould bone and the reinforcing bar 4 in stem stem or mould bone or erect and be connected to cover core steel pipe 12.
In the present embodiment, coupled column stem stem is in prefabrication, forms fabricated assembly overall coupled column, joint connection in site, shortens the duration. Constructional method is as follows:
First the basis of all frame set zygostyles is carried out by design, simultaneously by the cruciform in stem stem or H profile steel bone 4 or mould bone, the longitudinal FRP muscle of stem stem and the longitudinal reinforcing bar of armored concrete post and be reliably anchored in basis, for not affecting the colligation of stem stem stirrup 7, the longitudinal reinforcing bar length of armored concrete post enough connects, splice reinforcing bar or mould bone, connecting the longitudinal FRP muscle of stem stem, colligation stem stem stirrup is to 1/2 place of bottom column absolute altitude. Owing to stem stem 3 is different with the concrete of armored concrete post, so needing first Zhi Mo to build stem stem high-strength concrete. The template made is transported to scene, template internal surface does toothing, 4 pieces of templates surround closed space, adjustment is fixed after well, start casting concrete to the height designed, this height need to be less than one layer of bottom elevation, preferably at 1/2 place of bottom column absolute altitude, stem stem connection end 13 is reliably anchored in high-strength concrete by crab-bolt simultaneously, stem stem connection end 13 is formed by steel plate or the FRP plate with crab-bolt 14, accomplishing fluently bolt hole above, crab-bolt 14 is made up of steel screwed plug or FRP screwed plug. Concrete reaches form removal after certain intensity, forms spination on stem stem 3 surface like this, is convenient to the concrete binding of outside armored concrete post good. Then the vertical muscle of armored concrete post is connected, colligation armored concrete column tie-bar, forms armored concrete post Steel Reinforcement Cage, after the colligation of all coupled columns 1, the concrete starting to build outside armored concrete post reaches the design height of bottom, i.e. 1/2 place of bottom column absolute altitude.
Prefabricated core column 3, by stem stem connection end 12 and reinforcing bar 4 or mould bone and be connected, the vertical muscle 6 of colligation FRP and stirrup 7,4 pieces of templates of mounting strap spination, build high-strength concrete, and maintenance forms prefabricated core column 3. Stem stem is spliced by the scene of being transported to, the stem stem made is bolted, for keeping the reinforcing bar at node place or mould the continued integrity of bone, stem stem should be avoided splice at bean column node place, stem stem splices within the scope of the 1/2-1/3 of two layers of post through node, ensure that integrity, the moment of flexure on this scope post is less simultaneously, is applicable to splicing. Adopting to erect at node place prefabricated core column is enclosed within stem stem 3 to cover core steel pipe 12 or FRP pipe belt for template, be the template of band spination up and down, and cover core steel pipe or FRP manage and forever stay on stem stem, be convenient to afterwards with the reinforcing bar in beam or mould bone and be connected.
In the beam good by prefabrication, H profile steel bone or FRP mould bone and are transported to scene, first the reinforcing bar of beam-ends or mould bone and erecting to manage to cover core steel pipe 12 or FRP and be reliably connected on stem stem, then at the reinforcing bar of assembled remainder successively or mould bone, if the reinforcing bar of whole beam or mould bone and spliced and be connected with stem stem 3 again, bringing very big trouble to construction, end not easily connects. Reinforcing bar or mould bone with stem stem erects to cover core steel pipe 12 or FRP pipe is connected intact and splice after, transverse stiffener 8 is installed in the position that specified design is good on beam, if presstressed reinforcing steel 9 and reinforcing bar or mould the arrangement form adopting between bone and associating, adopt the ribbed stiffener 8 of evagination, being opened hole on ribbed stiffener 8 in advance, center, hole line and the presstressed reinforcing steel on all ribbed stiffeners linear (curve or broken line) is consistent; If adopting the arrangement form of non-association, ribbed stiffener 8 only plays overall stable effect, also need not open hole thereon without evagination. Then arrangement prestress muscle and corollary apparatus thereof, vertical muscle in beam is arranged in colligation after locating, the simultaneously stirrup at the vertical muscle of armored concrete post outside colligation prefabricated core column and stirrup and node place, then casting concrete, after maintenance reaches certain intensity, stretch-draw and anchoring prestress muscle, form first floor frame system after form removal.
Built-in asymmetric shaped steel/FRP prestressed concrete compound beam can adopt special strong concrete compound beam, in beam, concrete can divide 2 layers to build, conventional concrete built by bottom, high-strength concrete is built on upper strata, concrete compressive property can be given full play to, compound beam across in bear pressure zone within the scope of sagging moment be high-strength concrete, tensile region is then the concrete of relatively low strength, can greatly improve the supporting capacity of compound beam 2; The high-strength concrete on beam top may extend into node place, and presstressed reinforcing steel 9 stretch-draw and anchoring are positioned at top just, can increase the ability of concrete anti-office pressure.
Then constructing successively according to above-mentioned sequence of construction the frame system of other layers, until top layer, top layer stem stem stretches out the certain distance of top layer, it is ensured that top layer stem stem can fully undertake the effect of tension and compression internal force.
Claims (10)
1. the different strong coupled column assembled beam frame of a built-in stem stem, it is characterized in that: the different strong coupled column assembled beam frame of this kind of built-in stem stem has built-in asymmetric reinforcing bar or moulds the armored concrete coupled column (1) of bone prestressed concrete compound beam (2), built-in stem stem, compound beam (2) is horizontally set between coupled column (1), and the two adopts node to connect in intersection; Stem stem (3) is by reinforcing bar (4) or moulds bone and is formed together with concrete depositing, and vertical muscle (6) is distributed in stem stem (3) around, and stirrup (7) is wrapped in vertical muscle (6) outward, and stem stem (3) is placed in armored concrete post; Compound beam (2) section form is rectangle, built-in reinforcing bar (10) or to mould bone be H type, reinforcing bar (10) or mould bone transverse stiffener (8) is set, across middle place reinforcing bar or mould the position of bone in the bottom of compound beam (2), bearing place reinforcing bar or mould the position of bone in the top of compound beam (2), presstressed reinforcing steel (9) is arranged in compound beam (2) along its length; Bean column node place presstressed reinforcing steel (9) is passed from the both sides of stem stem (3), in coupled column end stretch-draw and anchoring, and H profile steel in compound beam (2) or mould bone and the reinforcing bar (4) in stem stem or mould bone and be connected.
2. the different strong coupled column assembled beam frame of built-in stem stem according to claim 1, it is characterised in that: building high-strength concrete in the stem stem (3) of described coupled column, armored concrete post adopts conventional concrete, forms special strong concrete coupled column.
3. the different strong coupled column assembled beam frame of built-in stem stem according to claim 2, it is characterized in that: the described H profile steel in compound beam (2) or mould bone adopt honeycomb type polygonal beam, opening hole (11) in H profile steel or the web between moulding the transverse stiffener (8) of bone, cross section, hole is circular or hexagon or octagon.
4. the different strong coupled column assembled beam frame of built-in stem stem according to claim 1 or 2 or 3, it is characterized in that: the arrangement form of described presstressed reinforcing steel (9) in compound beam (2) is shaped form or broken-line type, presstressed reinforcing steel (9) passes on reinforcing bar (10) or the transverse stiffener moulded in bone, presstressed reinforcing steel (9) and reinforcing bar (10) or to mould bone be correlation form.
5. the different strong coupled column assembled beam frame of built-in stem stem according to claim 1 or 2 or 3, it is characterized in that: the arrangement form of described presstressed reinforcing steel (9) in compound beam (2) is shaped form, presstressed reinforcing steel (9) is arranged in reinforcing bar (10) outward, presstressed reinforcing steel (9) and reinforcing bar (10) or to mould bone be non-correlation form.
6. the different strong coupled column assembled beam frame of built-in stem stem according to claim 1 or 2 or 3, it is characterized in that: in described compound beam (2), concrete divides two layers to build, conventional concrete built by bottom, and high-strength concrete is built on upper strata, forms special strong concrete compound beam.
7. the constructional method of the different strong coupled column assembled beam frame of a built-in stem stem according to claim 1, it is characterised in that: the constructional method of the different strong coupled column assembled beam frame of this kind of built-in stem stem:
First the basis of all frame set zygostyles (1) is carried out by design, simultaneously by the cruciform in stem stem (3) or H profile steel bone (4) or mould bone, the vertical muscle of stem stem and the vertical muscle of armored concrete post and be reliably anchored in basis, the stirrup (7) of colligation stem stem (3) and armored concrete post, after all coupled columns (1) colligation, the concrete building stem stem (3) and armored concrete post reaches the design height of bottom;
To reinforcing bar (4) or mould bone and splice, for keeping the reinforcing bar (4) at node place or mould the continued integrity of bone, should avoid in the splicing of bean column node place, reinforcing bar (4) or mould bone and splice within the scope of the 1/2-1/3 of two layers of post through node;
In the beam good by prefabrication, H profile steel or FRP mould bone and are transported to scene, first the reinforcing bar (10) of beam-ends or mould bone and the reinforcing bar (4) in stem stem or mould bone and be reliably connected, then at the reinforcing bar of assembled remainder successively or mould bone, if the reinforcing bar of whole beam or mould bone and spliced and be connected with stem stem again, bringing very big trouble to construction, end not easily connects; Then in the position that specified design is good, transverse stiffener (8) is installed, if presstressed reinforcing steel (9) and reinforcing bar (10) or mould the arrangement form adopting between bone and associating, the ribbed stiffener (8) of evagination to be opened hole in advance, center, hole line on all ribbed stiffeners (8) and presstressed reinforcing steel is linear is consistent; If adopting the arrangement form of non-association, ribbed stiffener only plays overall stable effect, also need not open hole thereon without evagination; Then arrangement prestress muscle (9) and corollary apparatus thereof, vertical muscle in beam is arranged in colligation after locating, the stirrup in colligation beam and node place, then casting concrete, and after maintenance, stretch-draw and anchoring prestress muscle, form first floor frame system after form removal;
During compound beam employing special strong concrete compound beam, in beam, concrete divides 2 layers to build, and conventional concrete built by bottom, and high-strength concrete is built on upper strata;
Then constructing successively the frame system of other layers, until top layer, top layer stem stem (3) stretches out the certain distance of top layer, it is ensured that top layer stem stem (3) can fully undertake the effect of tension and compression internal force.
8. the constructional method of the different strong coupled column assembled beam frame of a built-in stem stem according to claim 2, it is characterised in that: the constructional method of the different strong coupled column assembled beam frame of this kind of built-in stem stem:
First the basis of all frame set zygostyles (1) is carried out by design, simultaneously by the cruciform in stem stem (3) or H profile steel bone (4) or mould bone, the longitudinal FRP muscle of stem stem and the longitudinal reinforcing bar of armored concrete post and be reliably anchored in basis, for not affecting the colligation of stem stem stirrup (7), the longitudinal reinforcing bar length of armored concrete post enough connects, splice reinforcing bar or mould bone, connect the longitudinal FRP muscle of stem stem, colligation stem stem stirrup (7); Owing to stem stem is different with the concrete of armored concrete post, so needing first Zhi Mo to build stem stem (3) high-strength concrete; The template made is transported to scene, and template internal surface does toothing, and 4 pieces of templates surround closed space, and adjustment is fixed after well, starts casting concrete to the height designed, and this height need to be less than one layer of bottom elevation; Concrete reaches form removal after certain intensity, forms spination on stem stem surface like this, is convenient to the concrete binding of armored concrete post good; Then the vertical muscle of armored concrete post is connected, colligation armored concrete column tie-bar, forms armored concrete post Steel Reinforcement Cage, after all frame column colligations, the concrete starting to build armored concrete post reaches the design height of bottom, and this is highly less than one layer of bottom elevation;
To reinforcing bar (4) or mould bone and splice, for keeping the reinforcing bar at node place or mould the continued integrity of bone, should avoid in the splicing of bean column node place, reinforcing bar (4) or mould bone and splice within the scope of the 1/2-1/3 of two layers of post through node;
In the beam good by prefabrication, H profile steel or FRP mould bone and are transported to scene, first the reinforcing bar (10) of beam-ends or mould bone and the reinforcing bar (4) in stem stem or mould bone and be reliably connected, then at the reinforcing bar of assembled remainder successively or mould bone; Reinforcing bar (10) or mould bone and reinforcing bar in stem stem (4) or mould after bone is connected intact and splicing, next muscle and stirrup can be indulged by colligation stem stem FRP, the masterplate of mounting strap spination, opens hole at beam reinforcing bar or the situation template of moulding bone, can build stem stem high-strength concrete after template is fixing; Transverse stiffener (8) is installed in the position that specified design is good on beam simultaneously, if presstressed reinforcing steel (9) and reinforcing bar (10) or mould the arrangement form adopting between bone and associating, adopt the ribbed stiffener (8) of evagination, ribbed stiffener (8) to be opened hole in advance, center, hole line on all ribbed stiffeners and presstressed reinforcing steel is linear is consistent; If adopting the arrangement form of non-association, ribbed stiffener (8) only plays overall stable effect, also need not open hole thereon without evagination; Then arrangement prestress muscle (9) and corollary apparatus thereof, vertical muscle in beam is arranged in colligation after locating; Reaching after certain intensity until core column concrete, form removal, colligation armored concrete post is indulged in muscle and stirrup, beam and the stirrup at node place, then casting concrete, and after maintenance, stretch-draw and anchoring prestress muscle, form first floor frame system after form removal;
Then constructing successively according to above-mentioned sequence of construction the frame system of other layers, until top layer, top layer stem stem (3) stretches out the certain distance of top layer, it is ensured that top layer stem stem (3) can fully undertake the effect of tension and compression internal force.
9. the constructional method of the different strong coupled column assembled beam frame of a built-in stem stem according to claim 2, it is characterised in that: the constructional method of the different strong coupled column assembled beam frame of this kind of built-in stem stem:
First the basis of all frame set zygostyles (1) is carried out by design, simultaneously by the cruciform in stem stem (3) or H profile steel bone or mould bone, the longitudinal FRP muscle of stem stem and the longitudinal reinforcing bar of armored concrete post and be reliably anchored in basis, for not affecting the colligation of stem stem stirrup (7), the longitudinal reinforcing bar length of armored concrete post enough connects, splice reinforcing bar or mould bone, connect the longitudinal FRP muscle of stem stem, colligation stem stem stirrup (7); Owing to stem stem (3) is different with the concrete of outside armored concrete post, so needing first Zhi Mo to build stem stem high-strength concrete; The template made is transported to scene, and template internal surface does toothing, and 4 pieces of templates surround closed space, and adjustment is fixed after well, starts casting concrete to the height designed, and this height need to be less than one layer of bottom elevation; Concrete reaches form removal after certain intensity, forms spination on stem stem surface like this, is convenient to the concrete binding in outside good; Then the vertical muscle of armored concrete post is connected, colligation armored concrete column tie-bar, forms armored concrete post Steel Reinforcement Cage, after all coupled columns (1) colligation, the concrete starting to build armored concrete post reaches the design height of bottom, and this is highly less than one layer of bottom elevation;
To reinforcing bar (4) or mould bone and splice, for keeping the reinforcing bar (4) at node place or mould the continued integrity of bone, should avoid in the splicing of bean column node place, reinforcing bar (4) or mould bone and splice within the scope of the 1/2-1/3 of two layers of post through node; The vertical muscle of rear colligation stem stem FRP and stirrup (7) are spliced, the template of mounting strap spination, for avoiding that node place template opens hole, adopting at node place to erect replaces template to be enclosed within stem stem to cover core steel pipe (12), erecting to overlapping core steel pipe (12) is the template of band spination up and down, erect and forever stay on stem stem (3) to cover core steel pipe (12), be convenient to afterwards with the reinforcing bar in beam or mould bone and be connected; After stem stem (3) concrete reaches certain intensity, form removal;
In the beam good by prefabrication, H profile steel or FRP mould bone and are transported to scene, first the reinforcing bar (10) of beam-ends or mould bone and be reliably connected to overlapping core steel pipe (12) with erecting on stem stem, then at the reinforcing bar (10) of assembled remainder successively or mould bone; Reinforcing bar (10) or mould bone with stem stem erects to cover core steel pipe (12) be connected intact and splicing after, transverse stiffener (8) is installed in the position that specified design is good on beam, if presstressed reinforcing steel and reinforcing bar or mould the arrangement form adopting between bone and associating, adopt the ribbed stiffener (8) of evagination, ribbed stiffener (8) to be opened hole in advance, center, hole line on all ribbed stiffeners and presstressed reinforcing steel is linear is consistent; If adopting the arrangement form of non-association, ribbed stiffener (8) only plays overall stable effect, also need not open hole thereon without evagination; Then arrangement prestress muscle (9) and corollary apparatus thereof, vertical muscle in beam is arranged in colligation after locating, simultaneously the vertical muscle of armored concrete post and the stirrup at stirrup and node place outside colligation stem stem, then casting concrete, after maintenance, stretch-draw and anchoring prestress muscle, form first floor frame system after form removal;
Then constructing successively according to above-mentioned sequence of construction the frame system of other layers, until top layer, top layer stem stem stretches out the certain distance of top layer, it is ensured that top layer stem stem can fully undertake the effect of tension and compression internal force.
10. the constructional method of the different strong coupled column assembled beam frame of a built-in stem stem according to claim 2, it is characterised in that: the constructional method of the different strong coupled column assembled beam frame of this kind of built-in stem stem:
First the basis of all frame set zygostyles (1) is carried out by design, simultaneously by the cruciform in stem stem (3) or H profile steel bone (4) or mould bone, the longitudinal FRP muscle of stem stem and the longitudinal reinforcing bar of armored concrete post and be reliably anchored in basis, for not affecting the colligation of stem stem stirrup (7), the longitudinal reinforcing bar length of armored concrete post enough connects, splice reinforcing bar or mould bone, connecting the longitudinal FRP muscle of stem stem, colligation stem stem stirrup is to 1/2 place of bottom column absolute altitude; Owing to stem stem (3) is different with the concrete of armored concrete post, so needing first Zhi Mo to build stem stem high-strength concrete; The template made is transported to scene, template internal surface does toothing, 4 pieces of templates surround closed space, adjustment is fixed after well, start casting concrete to the height designed, this height need to be less than one layer of bottom elevation, preferably at 1/2 place of bottom column absolute altitude, stem stem connection end (13) is reliably anchored in high-strength concrete by crab-bolt (14) simultaneously, stem stem connection end (13) is formed by steel plate or the FRP plate with crab-bolt (14), accomplishing fluently bolt hole above, crab-bolt (14) is made up of steel screwed plug or FRP screwed plug; Concrete reaches form removal after certain intensity, forms spination on stem stem (3) surface like this, is convenient to armored concrete post concrete binding good; Then the vertical muscle of armored concrete post is connected, colligation armored concrete column tie-bar, forms armored concrete post Steel Reinforcement Cage, after all coupled columns (1) colligation, the concrete starting to build armored concrete post reaches the design height of bottom, i.e. 1/2 place of bottom column absolute altitude;
Prefabricated core column (3), by stem stem connection end (13) and reinforcing bar (4) or mould bone and be connected, colligation FRP indulges muscle (6) and stirrup (7), and 4 pieces of templates of mounting strap spination, build high-strength concrete, and maintenance forms prefabricated core column (3); Stem stem (3) is spliced by the scene of being transported to, the stem stem made (3) is bolted, for keeping the reinforcing bar at node place or mould the continued integrity of bone, should avoiding stem stem in the splicing of bean column node place, stem stem (3) splices within the scope of the 1/2-1/3 of two layers of post through node; Adopting to erect at node place prefabricated core column is enclosed within stem stem (3) to cover core steel pipe (12) or FRP pipe belt for template, it is the template of band spination up and down, erect and forever stay on stem stem (3) to cover core steel pipe (12) or FRP pipe, be convenient to afterwards with the reinforcing bar in beam or mould bone and be connected;
In the beam good by prefabrication, H profile steel or FRP mould bone and are transported to scene, first the reinforcing bar (10) of beam-ends or mould bone and erecting to manage to cover core steel pipe (12) or FRP and be reliably connected on stem stem, then at the reinforcing bar of assembled remainder successively or mould bone; Reinforcing bar (10) or mould bone with stem stem erects to cover core steel pipe (12) or FRP pipe is connected intact and splice after, transverse stiffener (8) is installed in the position that specified design is good on beam, if presstressed reinforcing steel (9) and reinforcing bar or mould the arrangement form adopting between bone and associating, adopt the ribbed stiffener (8) of evagination, ribbed stiffener (8) to be opened hole in advance, center, hole line on all ribbed stiffeners (8) and presstressed reinforcing steel is linear is consistent; If adopting the arrangement form of non-association, ribbed stiffener (8) only plays overall stable effect, also need not open hole thereon without evagination; Then arrangement prestress muscle (9) and corollary apparatus thereof, vertical muscle in beam is arranged in colligation after locating, the vertical muscle of armored concrete post and the stirrup at stirrup and node place outside colligation prefabricated core column simultaneously, then casting concrete, after maintenance, stretch-draw and anchoring prestress muscle, form first floor frame system after form removal;
Then constructing successively according to above-mentioned sequence of construction the frame system of other layers, until top layer, top layer stem stem stretches out the certain distance of top layer, it is ensured that top layer stem stem can fully undertake the effect of tension and compression internal force.
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| CN104264782B (en) * | 2014-10-29 | 2016-08-24 | 中国建筑第八工程局有限公司 | Assembled integral pre-stressed concrete frame structure and construction method thereof |
| CN107165435B (en) * | 2016-02-28 | 2019-05-03 | 叶香竹 | A kind of reinforced construction method having crack interior wall |
| CN106948476B (en) * | 2017-03-12 | 2019-05-10 | 东北石油大学 | The frame and its construction method that prestressing with bond combination beam is constituted |
| CN106869320B (en) * | 2017-03-12 | 2019-05-10 | 东北石油大学 | The frame and its construction method that coupled column combination beam is constituted |
| CN106948473B (en) * | 2017-04-24 | 2019-06-14 | 清华大学建筑设计研究院有限公司 | A kind of construction method of continuous deflecting armored concrete column structure system |
| CN106930593B (en) * | 2017-05-03 | 2018-11-23 | 常州工学院 | Bamboo（Wood）Frame structure beam column assembled energy dissipation node |
| CN107060112B (en) * | 2017-06-12 | 2024-01-30 | 上海欧本钢结构有限公司 | Comb-shaped connecting piece for connecting steel tube bundle concrete column and floor beam |
| CN108166620B (en) * | 2017-12-25 | 2020-02-07 | 天津大学 | Assembled concrete beam-column, post-column connected node |
| CN109989478A (en) * | 2019-02-22 | 2019-07-09 | 同济大学 | A kind of precast prestressed concrete frame structure |
| CN109707089B (en) * | 2019-02-24 | 2021-02-19 | 东北石油大学 | Floor system formed by GRC hollow box body composite boards and construction method thereof |
| CN109707087B (en) * | 2019-02-24 | 2021-08-03 | 东北石油大学 | Long-span sound insulation combined plate floor system with hidden beams and construction method thereof |
| CN110805025B (en) * | 2019-11-19 | 2022-07-01 | 上海建工集团股份有限公司 | Rib distribution type of cast-in-place prestressed underground diaphragm wall and tensioning method thereof |
| CN112376572B (en) * | 2020-10-20 | 2022-03-29 | 浙江省建筑设计研究院 | Vertical supporting structure capable of adapting to tensioning deformation of prestressed beam of top plate of reverse foundation pit |
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