CN103469939A - Flexible connection anti-seismic structure for masonry infilled wall and main body, and construction method for flexible connection anti-seismic structure - Google Patents
Flexible connection anti-seismic structure for masonry infilled wall and main body, and construction method for flexible connection anti-seismic structure Download PDFInfo
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Abstract
The invention discloses a flexible connection anti-seismic structure for a masonry infilled wall and a main body, and construction method for the flexible connection anti-seismic structure. Core columns or structural column reinforcing steel bars are connected with an upper floor slab and a lower floor slab in a steel bar planting way; reinforcing steel bars of a horizontal lintel or a horizontal tie beam on the upper part of a door opening are anchored into the core columns on the two sides or are connected with the main body structure by adopting the steel bar planting way. U-shaped building blocks serve as beam templates at the lintel or the horizontal tie beam; bound beam steel bars are placed in the U-shaped building blocks and are formed by pouring concrete; extruded polystyrene boards are arranged at the gaps of the two sides of the masonry infilled wall, the top part and the main body structure to serve as flexible connection. The conventional rigid connection of adding Rachel steel bars among the infilled wall, a frame column and a load-bearing wall is changed into the flexible connection of filling the extruded polystyrene boards, so that the infilled wall body cannot be damaged out of a plane under a seismic action and cannot cause adverse impact on the main body structure.
Description
Technical field
The present invention relates to building field, particularly relate to masonry filler wall and agent structure connected mode.
Background technology
At present, along with infilled wall in the past and the frame column of ceramic tile technology, the General Requirements that is connected of load bearing wall are established steel tie along post or wall, infilled wall and frame column, load bearing wall are combined closely, and are the way that is rigidly connected.What in the Wenchuan County in Sichuan earthquake, the infilled wall of this class formation destroyed, collapses is more, for drawing the earthquake calamity lesson, to flexibly connect as the Novel connection connection technology and be applied between infilled wall and agent structure, guaranteed that filled wall does not destroy outside out-of-plane when geological process, and unlikely agent structure has been caused to adverse effect.
Summary of the invention
The objective of the invention is: provide a kind of masonry filler wall and main body to flexibly connect earthquake resistant structure and job practices thereof, change into and fill flexibly connecting of extruded polystyrene board adding being rigidly connected of tension rib between traditional infilled wall and frame column, load bearing wall, guaranteed that filled wall does not destroy outside out-of-plane when geological process, and unlikely agent structure has been caused to adverse effect.
To achieve these goals, technical scheme of the present invention is to provide a kind of masonry filler wall and main body flexibly connects earthquake resistant structure, comprise vertical stem stem or constructional column, horizontal direction lintel or horizontal binder, masonry reaches the extruded polystyrene board that flexibly connects with agent structure, stem stem or constructional column reinforcing bar adopt the bar planting mode to be connected with upper and lower floor, the door opening upper level to lintel or horizontal binder reinforcing bar anchors in the stem stem of both sides or adopt the bar planting mode to be connected with agent structure, at lintel or horizontal binder place, adopt U-shaped building block as beam forms, place the good beam muscle of colligation in U-shaped building block, build again the concrete moulding, the masonry filler wall both sides, the gap of top and agent structure arranges extruded polystyrene board as flexibly connecting.
This masonry filler wall and main body flexibly connect the job practices of earthquake resistant structure, comprise following construction sequence:
Step 1: the body of wall unwrapping wire, before masonry is built by laying bricks or stones, the floor structure face is pressed to the absolute altitude levelling, emit axis, masonry sideline and the hole line of a skin building block according to working drawing;
Step 2: building block is arranged, piecemeal scale, line in body of wall line scope;
Step 3: bar planting, according to infilled wall length, corresponding stem stem position is set, by the bar planting of being holed of concrete stem stem reinforcement location, bore diameter and the degree of depth are according to the difference of adopted anchoring adhesive and difference, verifying after qualified and carry out the injecting glue bar planting in scene, after bar planting, keeps 24h to solidify and starts to build by laying bricks or stones again;
Step 4: put down the end, by bullet is good building block piecemeal scale line, that bottom concrete block masonry is good after, build and fill with real C20 concrete toward the building block hollow position, arrange brick as bottom and put down the end;
Step 5: build by laying bricks or stones, adopt " to hole, the fissure of displacement " masonry method, while building by laying bricks or stones, by the hole of one deck under the aligned of last layer building block, perpends staggers mutually, does not stay straight joint;
Step 6: the construction stem stem, when wall length surpasses 5m, the wall stage casing arranges stem stem, and the answer≤2.4m of distance between stem stem and stem stem; Stem stem is established in the door and window hole both sides; Stem stem is established at corner, J-shaped wall, cross wall handing-over position; When infilled wall length is less than 2.5m, door opening limit stem stem reinforcing bar is connected with reinforcing bar in door upper level binder, stops to binder, no longer extends upward; Wall is grown up when 2.5m, at the bottom of door opening limit stem stem reinforcing bar extends beam or at the bottom of plate; The long 5.0m that surpasses of wall, the high infilled wall that surpasses 4.2m of wall, the middle part long at wall arranges the cast-in-situ reinforced concrete post by spacing 5.0m, and column cross-section size is 240mm * 200mm, and arrangement of reinforcement is 4 grade III steels 12, and stirrup is that grade III steel 8 spacings are 250, builds the C20 concrete;
Step 7: horizontal binder, wall higher primary school is when 4.2m, and middle part that should be high at wall, on door opening, arrange horizontal binder together when door opening is arranged; Wall is high between 4.2m～5.0m the time, sets up the 2 horizontal binders in road, spacing≤1.6m; Wall is high>during 5.0m, the horizontal binder of multiple tracks is set, and first is located on door opening, and all the other horizontal binders are by arranging apart from being not more than 1.6m in vertical, horizontal binder and two ends shear wall or post anchoring, the horizontal binder of the wide body of wall of 200mm is built the concrete moulding with the double template inside of doing of U-shaped brick; When the door opening width is not more than 1.5m, support is carried out with flitch in the lintel bottom, and the U-shaped brick template of holding concurrently is built by laying bricks or stones, inside joins 3 grade III steels 10, and stirrup is that grade III steel 8 spacings are 200mm; When the door opening width is greater than 1.5m, lintel installs the cast-in-place moulding of template, and lintel is of a size of 200mm * 200mm, inside joins 4 Φ 12 grade III steels, and stirrup is grade III steel 8 200, crosses beam steel and extends through each 300mm of both sides, hole;
Step 8: while building to beam, position, plate bottom, at least interval 7d, can carry out top and build by laying bricks or stones;
Step 9: top way; According to 8 degree seismic fortification intensity requirements, when wall length>5.0m, the wall top is except should building tightly with Vierendeel girder, plate, should add anchor point, adopt the bar planting mode that grade III steel 10 reinforcing bars are implanted in beam, plate, implantation depth is 120mm, protruded length is 150mm, and spacing is not more than 1.0m, and filling C20 concrete is closely knit, known according to the stem stem spacing, 2 road anchor points are set between two stem stems and get final product, when wall length≤5.0m, anchor point is not set, after the thick extruded polystyrene board of filling 20mm, that the filling of last space is closely knit;
Step 10: filleting, the extruded polystyrene board width is filled at infilled wall both sides and top should be than the few 20mm in the every limit of building block width, after having built 7 days by laying bricks or stones, can carry out the gap processing, first with polyurethane foams, gap is full of, with scraper, redundance is hung, outermost is twisted with the fingers real again with sealing cement, finally between the unlike material body of wall, pastes the wide alkaline-resisting grid cloth of 200mm floating with polymer mortar.
Wherein, according to described last space difference, implement different ways, while going up most a skin building block apart from beam or the not enough 30mm of plate, twist with the fingers flat with the dry masonry mortar; Go up most a skin building block and between 30mm～50mm the time, with the C20 concrete, fill with real apart from the space of beam or plate; Go up most a skin building block apart from the space of beam or plate when the 100mm left and right, with solid brick is flat, build, mortar is twisted with the fingers real.
Calculating from the 20mm of wall column limit, distance both sides during row's brick, after in stem stem bottom reinforcement bars implantation floor, reaching solidification intensity, then build building block closely knit with the C20 fine-stone concrete.
Fill extruded polystyrene board in the wide space of 20mm between blockwork and agent structure, the polyphenyl plate width should be than the few 20mm in the every limit of blockwork width, to guarantee the space of polyphenyl plate outside spray polyurethane foams and sealing cement.
Beneficial effect of the present invention:
Change into and fill flexibly connecting of extruded polystyrene board adding being rigidly connected of tension rib between traditional infilled wall and frame column, load bearing wall, detailed job practices and step is provided, be convenient to guarantee the construction effect flexibly connected, guaranteed that filled wall does not destroy outside out-of-plane when geological process, and unlikely agent structure has been caused to adverse effect.
The accompanying drawing explanation
Fig. 1: build the partition wall elevational schematic view by laying bricks or stones;
In figure: 1, stem stem; 2, horizontal binder; 3, row's brick is put down the end; 4, bar planting; 5, extruded polystyrene board; 6, build by laying bricks or stones; 7, auxiliary block of concrete.
The specific embodiment
Masonry filler wall of the present invention is except constructional column, stem stem, horizontal binder, lintel adopt the bar planting mode and agent structure is connected, and other positions all adopt extruded polystyrene board to spray the flexible connection mode that polyurethane foams seals with sealing cement more outward to be connected with agent structure.Adopt " connection of upper and lower, left and right point ", add constructional column or stem stem between the upper and lower and beam of infilled wall, plate, between infilled wall both sides and wall column with horizontal binder or lintel point drawknot, fill with extruded polystyrene board in the space of infilled wall and agent structure, when alleviating earthquake to the destruction of wall column, beam slab.Body of wall inside arranges stem stem and horizontal binder, guarantees outer the stablizing of body of wall out-of-plane.Door and window hole arranges stem stem and horizontal binder, guarantees that body of wall has globality preferably, and body of wall unlikely disintegration when reaching destruction is collapsed.
Specifically as shown in Figure 1: a kind of masonry filler wall and main body flexibly connect earthquake resistant structure, comprise vertical stem stem or constructional column, horizontal direction lintel or horizontal binder, masonry reaches the extruded polystyrene board that flexibly connects with agent structure, stem stem or constructional column reinforcing bar adopt the bar planting mode to be connected with upper and lower floor, the door opening upper level to lintel or horizontal binder reinforcing bar anchors in the stem stem of both sides or adopt the bar planting mode to be connected with agent structure, at lintel or horizontal binder place, adopt U-shaped building block as beam forms, place the good beam muscle of colligation in U-shaped building block, build again the concrete moulding, the masonry filler wall both sides, the gap of top and agent structure arranges extruded polystyrene board as flexibly connecting.
Above-mentioned masonry filler wall and agent structure flexibly connect technology, and construction sequence is as follows:
Step 1: body of wall unwrapping wire.Before masonry is built by laying bricks or stones, the floor structure face is pressed to the absolute altitude levelling, emit axis, masonry sideline and the hole line of a skin building block according to working drawing.
Step 2: building block is arranged.Piecemeal scale, line in body of wall line scope, adopt the building block of master ga(u)ge lattice as far as possible.
Step 3: bar planting.According to infilled wall length, corresponding stem stem position is set, by the bar planting of being holed of concrete stem stem reinforcement location.Bore diameter and the degree of depth are according to the difference of adopted anchoring adhesive and difference.Verify after qualified and carry out the injecting glue bar planting through the supervising engineer scene, after bar planting, keep 24h to solidify and starts again to build by laying bricks or stones.
Step 4: put down the end.After by bullet is good building block piecemeal scale line, that bottom concrete block masonry is good, toward the building block hollow position, build and fill with real C20 concrete, arrange brick as bottom and put down the end.
Step 5: build by laying bricks or stones.Adopt " to hole, the fissure of displacement " masonry method.While building by laying bricks or stones, by the hole of one deck under the aligned of last layer building block, perpends staggers mutually, does not stay straight joint.
Step 6: stem stem.When wall length surpasses 5m, the wall stage casing arranges stem stem, and the answer≤2.4m of distance between stem stem and stem stem; Stem stem is established in the door and window hole both sides; Stem stem is established at corner, J-shaped wall, cross wall handing-over position; While as infilled wall length, being less than 2.5m, door opening limit stem stem reinforcing bar is connected with reinforcing bar in door upper level binder, stops to binder, no longer extends upward; Wall is grown up when 2.5m, at the bottom of door opening limit stem stem reinforcing bar extends beam or at the bottom of plate; The long 5.0m that surpasses of wall, the high infilled wall that surpasses 4.2m of wall, the middle part long at wall arranges the cast-in-situ reinforced concrete post by spacing 5.0m, and column cross-section size is 240mm * 200mm, and arrangement of reinforcement is 4 grade III steels 12, and stirrup is that grade III steel 8 spacings are 250, builds the C20 concrete.The thick wall of stem stem arrangement of reinforcement: 200mm, 2 12 are placed in a core pole hole and fill with real C20 concrete.
Step 7: horizontal binder.Wall higher primary school is when 4.2m, and middle part that should be high at wall (when door opening is arranged on door opening) arranges horizontal binder together; Wall is high between 4.2m～5.0m the time, sets up the 2 horizontal binders in road, spacing≤1.6m; Wall is high>during 5.0m, the horizontal binder of multiple tracks should be set, and first is located on door opening, and all the other horizontal binders are by arranging apart from being not more than 1.6m in vertical.Horizontal binder and two ends shear wall or post anchoring.The horizontal binder of the wide body of wall of 200mm can be built the concrete moulding with the double template inside of doing of U-shaped brick; When the door opening width is not more than 1.5m, support is carried out with flitch in the lintel bottom, and the U-shaped brick template of holding concurrently is built by laying bricks or stones, inside joins 3 grade III steels 10, and stirrup is that grade III steel 8 spacings are 200mm; When the door opening width is greater than 1.5m, lintel installs the cast-in-place moulding of template, and lintel is of a size of 200mm * 200mm, inside joins 4 Φ 12(grade III steels), stirrup is grade III steel [email protected] beam steel and extend through each 300mm of both sides, hole.
Step 8: while building to beam, position, plate bottom, at least, after the 7d of interval, can carry out top and build by laying bricks or stones.
Step 9: top way.According to 8 degree seismic fortification intensity requirements, when wall length>5.0m, the wall top, except should building tightly with Vierendeel girder, plate, should add anchor point, adopts the bar planting mode that grade III steel 10 reinforcing bars are implanted in beams, plate, implantation depth is 120mm, protruded length is 150mm, and spacing is not more than 1.0m, and filling C20 concrete is closely knit, known according to the stem stem spacing, 2 road anchor points are set between two stem stems and get final product.When wall length≤5.0m, anchor point is not set, after the thick extruded polystyrene board of filling 20mm, according to last pore size, take the different modes filling closely knit.
While 1) going up a skin building block apart from the not enough 30mm of beam (plate) most, with the dry masonry mortar, twist with the fingers flat;
2) go up a skin building block most and between 30mm～50mm the time, with the C20 concrete, fill with real apart from the space of beam (plate);
3) go up most a skin building block apart from the space of beam (plate) when the 100mm left and right, with solid brick is flat, build, mortar is twisted with the fingers real.
Step 10: filleting.The extruded polystyrene board width is filled at infilled wall both sides and top should, than the few 20mm in the every limit of building block width, after having built 7 days by laying bricks or stones, can carry out the gap processing.First with polyurethane foams, gap is full of, with scraper, redundance is hung, outermost is twisted with the fingers real again with sealing cement.Finally between the unlike material body of wall, paste the wide alkaline-resisting grid cloth of 200mm floating with polymer mortar.
Claims (5)
1. a masonry filler wall and main body flexibly connect earthquake resistant structure, it is characterized in that: comprise vertical stem stem or constructional column, horizontal direction lintel or horizontal binder, masonry reaches the extruded polystyrene board that flexibly connects with agent structure, stem stem or constructional column reinforcing bar adopt the bar planting mode to be connected with upper and lower floor, the door opening upper level to lintel or horizontal binder reinforcing bar anchors in the stem stem of both sides or adopt the bar planting mode to be connected with agent structure, at lintel or horizontal binder place, adopt U-shaped building block as beam forms, place the good beam muscle of colligation in U-shaped building block, build again the concrete moulding, the masonry filler wall both sides, the gap of top and agent structure arranges extruded polystyrene board as flexibly connecting.
2. a kind of masonry filler wall according to claim 1 and main body flexibly connect the job practices of earthquake resistant structure, it is characterized in that: comprise following construction sequence:
Step 1: the body of wall unwrapping wire, before masonry is built by laying bricks or stones, the floor structure face is pressed to the absolute altitude levelling, emit axis, masonry sideline and the hole line of a skin building block according to working drawing;
Step 2: building block is arranged, piecemeal scale, line in body of wall line scope;
Step 3: bar planting, according to infilled wall length, corresponding stem stem position is set, by the bar planting of being holed of concrete stem stem reinforcement location, bore diameter and the degree of depth are according to the difference of adopted anchoring adhesive and difference, verifying after qualified and carry out the injecting glue bar planting in scene, after bar planting, keeps 24h to solidify and starts to build by laying bricks or stones again;
Step 4: put down the end, by bullet is good building block piecemeal scale line, that bottom concrete block masonry is good after, build and fill with real C20 concrete toward the building block hollow position, arrange brick as bottom and put down the end;
Step 5: build by laying bricks or stones, adopt " to hole, the fissure of displacement " masonry method, while building by laying bricks or stones, by the hole of one deck under the aligned of last layer building block, perpends staggers mutually, does not stay straight joint;
Step 6: the construction stem stem, when wall length surpasses 5m, the wall stage casing arranges stem stem, and the answer≤2.4m of distance between stem stem and stem stem; Stem stem is established in the door and window hole both sides; Stem stem is established at corner, J-shaped wall, cross wall handing-over position; When infilled wall length is less than 2.5m, door opening limit stem stem reinforcing bar is connected with reinforcing bar in door upper level binder, stops to binder, no longer extends upward; Wall is grown up when 2.5m, at the bottom of door opening limit stem stem reinforcing bar extends beam or at the bottom of plate; The long 5.0m that surpasses of wall, the high infilled wall that surpasses 4.2m of wall, the middle part long at wall arranges the cast-in-situ reinforced concrete post by spacing 5.0m, and column cross-section size is 240mm * 200mm, and arrangement of reinforcement is 4 grade III steels 12, and stirrup is that grade III steel 8 spacings are 250, builds the C20 concrete;
Step 7: horizontal binder, wall higher primary school is when 4.2m, and middle part that should be high at wall, on door opening, arrange horizontal binder together when door opening is arranged; Wall is high between 4.2m～5.0m the time, sets up the 2 horizontal binders in road, spacing≤1.6m; Wall is high>during 5.0m, the horizontal binder of multiple tracks is set, and first is located on door opening, and all the other horizontal binders are by arranging apart from being not more than 1.6m in vertical, horizontal binder and two ends shear wall or post anchoring, the horizontal binder of the wide body of wall of 200mm is built the concrete moulding with the double template inside of doing of U-shaped brick; When the door opening width is not more than 1.5m, support is carried out with flitch in the lintel bottom, and the U-shaped brick template of holding concurrently is built by laying bricks or stones, inside joins 3 grade III steels 10, and stirrup is that grade III steel 8 spacings are 200mm; When the door opening width is greater than 1.5m, lintel installs the cast-in-place moulding of template, and lintel is of a size of 200mm * 200mm, inside joins 4 Φ 12 grade III steels, and stirrup is grade III steel 8 200, crosses beam steel and extends through each 300mm of both sides, hole;
Step 8: while building to beam, position, plate bottom, at least interval 7d, can carry out top and build by laying bricks or stones;
Step 9: top way; According to 8 degree seismic fortification intensity requirements, when wall length>5.0m, the wall top is except should building tightly with Vierendeel girder, plate, should add anchor point, adopt the bar planting mode that grade III steel 10 reinforcing bars are implanted in beam, plate, implantation depth is 120mm, protruded length is 150mm, and spacing is not more than 1.0m, and filling C20 concrete is closely knit, known according to the stem stem spacing, 2 road anchor points are set between two stem stems and get final product, when wall length≤5.0m, anchor point is not set, after the thick extruded polystyrene board of filling 20mm, that the filling of last space is closely knit;
Step 10: filleting, the extruded polystyrene board width is filled at infilled wall both sides and top should be than the few 20mm in the every limit of building block width, after having built 7 days by laying bricks or stones, can carry out the gap processing, first with polyurethane foams, gap is full of, with scraper, redundance is hung, outermost is twisted with the fingers real again with sealing cement, finally between the unlike material body of wall, pastes the wide alkaline-resisting grid cloth of 200mm floating with polymer mortar.
3. job practices according to claim 2, is characterized in that: according to described last space difference, implement different ways, while going up most a skin building block apart from beam or the not enough 30mm of plate, twist with the fingers flat with the dry masonry mortar; Go up most a skin building block and between 30mm～50mm the time, with the C20 concrete, fill with real apart from the space of beam or plate; Go up most a skin building block apart from the space of beam or plate when the 100mm left and right, with solid brick is flat, build, mortar is twisted with the fingers real.
4. job practices according to claim 2 is characterized in that: calculating from the 20mm of wall column limit, distance both sides during row's brick, after the stem stem bottom reinforcement bars is implanted in floor and reached solidification intensity, then building block is built closely knit with the C20 fine-stone concrete.
5. according to the described job practices of one of claim 2-4, it is characterized in that: fill extruded polystyrene board in the wide space of the 20mm between blockwork and agent structure, the polyphenyl plate width should be than the few 20mm in the every limit of blockwork width, to guarantee the space of polyphenyl plate outside spray polyurethane foams and sealing cement.
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