CN104594555A - Prefabricated reinforced concrete beam with transverse high-strength concrete separation plate and construction method thereof - Google Patents
Prefabricated reinforced concrete beam with transverse high-strength concrete separation plate and construction method thereof Download PDFInfo
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- 239000011372 high-strength concrete Substances 0.000 title claims abstract description 106
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 title description 28
- 238000000926 separation method Methods 0.000 title 1
- 239000004567 concrete Substances 0.000 claims abstract description 102
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000002131 composite material Substances 0.000 claims description 9
- 239000011178 precast concrete Substances 0.000 claims description 5
- 210000003205 muscle Anatomy 0.000 claims 9
- 238000010521 absorption reaction Methods 0.000 claims 1
- 210000002421 cell wall Anatomy 0.000 claims 1
- 230000008929 regeneration Effects 0.000 claims 1
- 238000011069 regeneration method Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract description 23
- 230000002787 reinforcement Effects 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009415 formwork Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
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- 238000009417 prefabrication Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
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Abstract
一种带横向高强混凝土隔板的预制装配钢筋混凝土梁，采用部分预制装配部分现浇思想，由预制部分和现浇部分组成，包括预制U型高强混凝土槽；填充于预制U型高强混凝土槽中的现浇普通混凝土一；设置于预制U型高强混凝土槽中且与槽长方向垂直的若干横向高强混凝土隔板；设置于预制U型高强混凝土槽中且与槽长方向垂直的若干闭合的箍筋；设置于预制U型高强混凝土槽槽底且与槽长方向平行的若干纵筋一；以及设置于预制U型高强混凝土槽顶部的现浇翼缘板，本发明还提供了该梁的施工方法，本发明可提高预制混凝土与现浇混凝土间的纵向抗剪切作用，同时防止侧向破坏，提高梁抗裂、耐久和耐火性能。
A prefabricated assembled reinforced concrete beam with a transverse high-strength concrete partition adopts the idea of partial prefabricated assembly and part cast-in-place, consisting of prefabricated parts and cast-in-place parts, including prefabricated U-shaped high-strength concrete grooves; filled in prefabricated U-shaped high-strength concrete grooves cast-in-place ordinary concrete 1; a number of transverse high-strength concrete partitions set in the prefabricated U-shaped high-strength concrete trough and perpendicular to the long direction of the trough; a number of closed hoops set in the prefabricated U-shaped high-strength concrete trough and perpendicular to the long direction of the trough Rib; be arranged at the bottom of the prefabricated U-shaped high-strength concrete groove and some longitudinal reinforcements parallel to the longitudinal direction of the groove; and be arranged on the cast-in-place flange plate at the top of the prefabricated U-shaped high-strength concrete groove. According to the method, the invention can improve the longitudinal anti-shear effect between the prefabricated concrete and the cast-in-place concrete, prevent lateral damage at the same time, and improve the crack resistance, durability and fire resistance of the beam.
Description
技术领域technical field
本发明属于建筑技术领域，特别涉及一种带横向高强混凝土隔板的预制装配钢筋混凝土梁及施工方法。The invention belongs to the technical field of buildings, in particular to a prefabricated and assembled reinforced concrete beam with a transverse high-strength concrete partition and a construction method.
背景技术Background technique
在现代钢筋混凝土结构中，使用最早应用最广泛的结构形式为现浇钢筋混凝土结构，它是在现场支模并整体浇筑而成的结构，具有整体性能好、刚度大、防渗性好等优点，同时对形状不规则和空间灵活的建筑适应能力也很强。但是在使用过程中也有很多的缺点，如在现场进行支模与施工，施工工序繁多，人工用量大，材料用量多，周期长，成本高等，对于创建资源节约型和环境友好型社会没有起到积极的推动作用。In the modern reinforced concrete structure, the earliest and most widely used structural form is the cast-in-place reinforced concrete structure, which is a structure formed by setting up formwork on site and integrally pouring, and has the advantages of good overall performance, high rigidity, and good seepage resistance. , At the same time, it is also highly adaptable to buildings with irregular shapes and flexible spaces. However, there are also many disadvantages in the process of use, such as on-site formwork and construction, many construction procedures, a large amount of labor, a large amount of materials, a long cycle, and high costs, which have not played a role in creating a resource-saving and environment-friendly society. positive impetus.
因此随着建筑施工技术的发展，装配式混凝土结构得以出现发展。它是由预制混凝凝土构件或部件装配连接而成的混凝土结构。相对于现浇混凝土结构装配式结构可以使建筑构件的制作不受季节的影响与限制，实现工业化生产，由于构件是在工厂进行浇筑与养护，构件的质量得以保证，并且大大缩短了施工工期，加快施工进度，节约了大量的模板支撑，但是其同时也存在着许多缺点，整体性能差，抗渗性差，不利抗震，在使用和美观方面也有一定的不足。Therefore, with the development of building construction technology, prefabricated concrete structures can appear and develop. It is a concrete structure assembled and connected by prefabricated concrete components or components. Compared with the cast-in-place concrete structure, the prefabricated structure can make the production of building components not affected and restricted by seasons, and realize industrial production. Since the components are poured and maintained in the factory, the quality of the components can be guaranteed, and the construction period is greatly shortened. Speeding up the construction progress saves a lot of formwork support, but it also has many shortcomings, such as poor overall performance, poor impermeability, unfavorable earthquake resistance, and certain deficiencies in use and aesthetics.
发明内容Contents of the invention
为了克服上述现有技术的缺点，本发明的目的在于提供一种带横向高强混凝土隔板的预制装配钢筋混凝土梁及施工方法，保留了现浇和装配式混凝土结构的优点，同时解决了两种结构的不足，具有施工简便、成本低廉、性能优良的特点。In order to overcome the above-mentioned shortcoming of the prior art, the object of the present invention is to provide a kind of prefabricated assembled reinforced concrete beam with transverse high-strength concrete partition and construction method, kept the advantages of cast-in-place and assembled concrete structure, solved two kinds of problems at the same time Due to the lack of structure, it has the characteristics of simple construction, low cost and excellent performance.
为了实现上述目的，本发明采用的技术方案是：In order to achieve the above object, the technical scheme adopted in the present invention is:
一种带横向高强混凝土隔板的预制装配钢筋混凝土梁，包括：A prefabricated reinforced concrete beam with transverse high-strength concrete diaphragm, comprising:
预制U型高强混凝土槽1；Prefabricated U-shaped high-strength concrete tank 1;
填充于预制U型高强混凝土槽1中的现浇普通混凝土一2；Cast-in-place ordinary concrete-2 filled in the prefabricated U-shaped high-strength concrete tank 1;
设置于预制U型高强混凝土槽1中且与槽长方向垂直的若干横向高强混凝土隔板7；A number of transverse high-strength concrete partitions 7 arranged in the prefabricated U-shaped high-strength concrete tank 1 and perpendicular to the longitudinal direction of the tank;
设置于预制U型高强混凝土槽1中且与槽长方向垂直的若干闭合的箍筋5；A number of closed stirrups 5 arranged in the prefabricated U-shaped high-strength concrete groove 1 and perpendicular to the length direction of the groove;
设置于预制U型高强混凝土槽1槽底且与槽长方向平行的若干纵筋一6；A number of longitudinal reinforcements-6 arranged at the bottom of the prefabricated U-shaped high-strength concrete tank 1 and parallel to the longitudinal direction of the tank;
以及，as well as,
设置于预制U型高强混凝土槽1顶部的现浇翼缘板。The cast-in-place flange plate arranged on the top of the prefabricated U-shaped high-strength concrete tank 1.
所述箍筋5的下部位于预制U型高强混凝土槽1的槽壁与槽底中，纵筋一6焊接在箍筋5的底部，箍筋5的顶部焊接与纵筋一6平行的纵筋二8，所述预制U型高强混凝土槽1、箍筋5、纵筋一6、纵筋二8以及横向高强混凝土隔板7均为预制部分。The lower part of the stirrup 5 is located in the groove wall and bottom of the prefabricated U-shaped high-strength concrete groove 1, the longitudinal reinforcement 6 is welded to the bottom of the stirrup 5, and the top of the stirrup 5 is welded to the longitudinal reinforcement parallel to the longitudinal reinforcement 6 2. 8. The prefabricated U-shaped high-strength concrete groove 1, stirrup 5, longitudinal reinforcement 1 6, longitudinal reinforcement 2 8 and transverse high-strength concrete partition 7 are all prefabricated parts.
所述现浇普通混凝土一2和现浇翼缘板均为现浇部分。The cast-in-place ordinary concrete-2 and the cast-in-place flange plate are all cast-in-place parts.
所述预制U型高强混凝土槽1的槽两端分别设置有混凝土橡胶芯模。The two ends of the prefabricated U-shaped high-strength concrete tank 1 are respectively provided with concrete rubber mandrels.
所述现浇普通混凝土一2和现浇翼缘板所采用的混凝土强度与预制U型高强混凝土槽1和横向高强混凝土隔板7所采用的混凝土强度不同。The strength of the concrete used in the cast-in-place ordinary concrete-2 and the cast-in-place flange plate is different from that used in the prefabricated U-shaped high-strength concrete tank 1 and the transverse high-strength concrete partition 7 .
所述现浇普通混凝土一2和现浇翼缘板所采用的混凝土强度低于预制U型高强混凝土槽1和横向高强混凝土隔板7所采用的混凝土强度。The strength of the concrete used in the cast-in-place ordinary concrete-2 and the cast-in-place flange plate is lower than the concrete strength used in the prefabricated U-shaped high-strength concrete tank 1 and the transverse high-strength concrete partition 7 .
所述现浇普通混凝土一2和现浇翼缘板所采用的混凝土为普通混凝土、再生混凝土、轻骨料混凝土、橡胶混凝土、吸声混凝土或保温隔热混凝土。The concrete used in the cast-in-place ordinary concrete-2 and the cast-in-place flange plate is ordinary concrete, recycled concrete, lightweight aggregate concrete, rubber concrete, sound-absorbing concrete or thermal insulation concrete.
所述现浇翼缘板采用钢筋混凝土板、压型钢板-混凝土组合板或预制混凝土叠合板。The cast-in-place flange board adopts a reinforced concrete board, a profiled steel plate-concrete composite board or a prefabricated concrete composite board.
所述压钢筋板-混凝土组合板由压型钢板或预制混凝土板3和现浇普通混凝土二4组成，其中压型钢板或预制混凝土板3与预制U型高强混凝土槽1的顶部连接。The pressed steel plate-concrete composite plate is composed of profiled steel plate or prefabricated concrete plate 3 and cast-in-place ordinary concrete 2 4, wherein the profiled steel plate or precast concrete plate 3 is connected to the top of prefabricated U-shaped high-strength concrete tank 1.
该带横向高强混凝土隔板的预制装配钢筋混凝土梁，步骤如下：For the prefabricated reinforced concrete beam with transverse high-strength concrete partition, the steps are as follows:
1、在工厂，将纵筋一6焊接在箍筋5的底部，纵筋二8焊接在箍筋5的顶部，将箍筋5的下部以及高强混凝土隔板7浇筑于预制U型高强混凝土槽1中，完成预制部分；1. In the factory, longitudinal bar 1 6 is welded to the bottom of stirrup 5, longitudinal bar 2 8 is welded to the top of stirrup 5, and the lower part of stirrup 5 and high-strength concrete partition 7 are poured into the prefabricated U-shaped high-strength concrete groove 1, complete the prefabrication part;
2、在现场，将纵筋一6与柱直接连接；2. On site, directly connect the longitudinal reinforcement 6 to the column;
3、向预制U型高强混凝土槽1中浇筑现浇普通混凝土一2；3. Pour in-situ ordinary concrete 1 into the prefabricated U-shaped high-strength concrete tank 1;
4、向预制U型高强混凝土槽1上方浇筑现浇翼缘板。4. Pour the cast-in-place flange plate above the prefabricated U-shaped high-strength concrete tank 1 .
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
(1)施工简便。(1) The construction is simple.
梁的预制带横向高强混凝土隔板和U型腹板的高强混凝土钢筋骨架部分包括梁下部纵筋、梁中箍筋和下部高强混凝土，该部分均在工厂预制生产完成，在工地通过将预制部分的钢筋与柱直接连接，再浇筑混凝土楼板即完成梁施工安装。与传统施工安装相比，现场不用绑扎钢筋、支模、拆模和架设梁下临时支撑。若楼板采用压钢筋板-混凝土组合板或叠合楼板，则整个楼盖施工过程中均无需支模、拆模和临时支撑，现场施工工序、施工材料和施工工时均大为减小。The prefabricated high-strength concrete skeleton part of the beam with transverse high-strength concrete partitions and U-shaped webs includes the lower longitudinal reinforcement of the beam, the middle stirrup of the beam and the lower high-strength concrete. These parts are all prefabricated in the factory. The reinforced steel bars are directly connected to the columns, and then the concrete floor slab is poured to complete the beam construction and installation. Compared with traditional construction and installation, there is no need to bind steel bars, support formwork, remove formwork and erect temporary supports under beams on site. If the floor slab adopts a reinforced slab-concrete composite slab or a laminated floor slab, there is no need for formwork support, formwork removal and temporary support during the entire floor construction process, and the on-site construction procedures, construction materials and construction hours are greatly reduced.
(2)设计灵活。(2) Flexible design.
在梁中正弯矩作用下，梁跨中预制部分处于受拉区，为提高PSRC梁的施工阶段刚度、抗裂性能、受剪承载能力、耐久性和耐火性能，其预制部分采用带隔板式的U型高强混凝土，而处于受压区的现浇部分由于有上部钢筋和混凝土翼缘板作用，无需采用高强混凝土，采用普通强度混凝土即可。在负弯矩作用下，梁端处于受压区的为采用高强混凝土的预制部分，由于混凝土强度较高，截面受压区高度较小，同时结合箍筋加密约束高强混凝土，截面塑性转动能力可得到较好保证或有较大提高。因此，在PSRC梁中，预制部分与现浇部分可以采用不同强度等级的混凝土，致使设计更加灵活。因此，本发明具有良好的社会效益和经济效益。Under the action of the positive bending moment in the beam, the prefabricated part in the middle span of the beam is in the tension zone. In order to improve the stiffness, crack resistance, shear bearing capacity, durability and fire resistance of the PSRC beam in the construction stage, the prefabricated part adopts a diaphragm type U-shaped high-strength concrete, and the cast-in-place part in the compression zone has the effect of upper steel bars and concrete flange plates, so there is no need to use high-strength concrete, and ordinary-strength concrete can be used. Under the action of negative bending moment, the beam end in the compression zone is the prefabricated part of high-strength concrete. Due to the high strength of the concrete, the height of the compression zone of the section is small. At the same time, combined with the high-strength concrete restrained by the reinforcement of the stirrup, the plastic rotation capacity of the section can be increased. Get a better guarantee or a greater improvement. Therefore, in the PSRC beam, concrete of different strength grades can be used for the prefabricated part and the cast-in-place part, making the design more flexible. Therefore, the invention has good social and economic benefits.
3)功能提升。3) Function improvement.
如上所述，在梁中可以在预制部分采用高强混凝土，现浇部分采用普通强度混凝土，二者混凝土强度等级可以不同。因此，在实际工程应用中，楼板混凝土选择时可以不受梁中混凝土强度限制，选用不同特性的各种类型混凝土，有效提升结构使用功能需求。例如，对于现浇部分混凝土和楼板混凝土，为节约资源能源，可以采用再生混凝土；为减轻楼盖自重，可以采用轻骨料混凝土；为提高楼盖减振隔音效果，可以采用橡胶混凝土或吸声混凝土；为提高楼盖保温性能，可以采用保温隔热混凝土。As mentioned above, high-strength concrete can be used in the prefabricated part of the beam, and ordinary-strength concrete can be used in the cast-in-place part, and the strength grades of the two concretes can be different. Therefore, in practical engineering applications, the choice of floor concrete can be independent of the strength of the concrete in the beam, and various types of concrete with different characteristics can be selected to effectively improve the functional requirements of the structure. For example, for cast-in-place concrete and floor concrete, in order to save resources and energy, recycled concrete can be used; in order to reduce the weight of the floor, lightweight aggregate concrete can be used; in order to improve the vibration and sound insulation effect of the floor, rubber concrete or sound-absorbing concrete can be used Concrete; in order to improve the thermal insulation performance of the floor, thermal insulation concrete can be used.
4)降低造价。4) Reduce the cost.
在传统施工中，一般情况下梁混凝土与楼板混凝土一起浇筑，即梁混凝土和楼板混凝土必须为同一品种和强度等级混凝土。跨度较大的钢筋混凝土梁多采用高强混凝土，致使楼板也同样需要采用高强混凝土，从而导致建造成本增加；同时由于采用高强混凝土，还会明显提高楼板的最小配筋率限值，从而使楼板钢筋用量增加，进一步导致建造成本加大。而在本文提出的预制钢筋混凝土梁中，可以仅在梁预制部分采用高强混凝土，而梁现浇部分和楼板混凝土均可以采用普通混凝土、再生混凝土或轻骨料混凝土，混凝土强度等级不需太高，致使楼板钢筋的最小配筋率限值可以降低，故而整个楼盖的钢筋用量相对采用高强混凝土时减少。In traditional construction, beam concrete and floor concrete are generally poured together, that is, beam concrete and floor concrete must be of the same type and strength grade. Reinforced concrete beams with large spans are often made of high-strength concrete, so that the floor also needs to use high-strength concrete, resulting in an increase in construction costs; at the same time, the use of high-strength concrete will also significantly increase the minimum reinforcement ratio limit of the floor, so that the floor reinforcement The increase in usage further leads to an increase in construction costs. In the prefabricated reinforced concrete beam proposed in this paper, high-strength concrete can be used only in the prefabricated part of the beam, while ordinary concrete, recycled concrete or lightweight aggregate concrete can be used in the cast-in-place part of the beam and the floor concrete, and the concrete strength level does not need to be too high , so that the minimum reinforcement ratio limit of the floor slab can be reduced, so the amount of reinforcement for the entire floor is reduced compared with that of high-strength concrete.
5)施工质量好。5) The construction quality is good.
在传统梁的施工中，由于施工工序多、施工难度大，常出现梁腹板中混凝土振捣差、混凝土强度不足和梁中钢筋错位等质量问题，施工质量不易控制。而在本文提出的预制钢筋混凝土梁中，梁的腹板部分为工厂预制，混凝土浇筑振捣方便并且可采用蒸汽养护，混凝土施工质量易于控制，在U型槽中采用的混凝土横向隔板可以有效地防止新旧混凝土之间的纵向剪切滑移，尤其对于采用高强混凝土时，在施工质量控制方面优势更加明显。In the construction of traditional beams, due to many construction procedures and high construction difficulties, quality problems such as poor concrete vibration in the beam web, insufficient concrete strength, and dislocation of steel bars in the beam often occur, and the construction quality is difficult to control. In the prefabricated reinforced concrete beam proposed in this paper, the web part of the beam is prefabricated in the factory, the concrete pouring and vibration are convenient and can be cured by steam, the construction quality of the concrete is easy to control, and the concrete transverse partition used in the U-shaped groove can effectively It can effectively prevent the longitudinal shear slip between old and new concrete, especially when high-strength concrete is used, and the advantages in construction quality control are more obvious.
综上，本发明所提出的带横向高强混凝土隔板做法可以从整体上有效提高新旧混凝土受力后的纵向粘结破坏问题，并同时极大改善构件在运输与吊装过程中变形能力，实现预制钢筋混凝土构件受力性能和使用性能全面提高增强，形成一种新型高效的预制装配钢筋混凝土梁技术。本发明所提出的预制钢筋混凝土梁技术具有施工方便、适用性广、整体性能高等诸多显著性能优势，可以广泛应用建筑、厂房、桥梁等各种钢筋混凝土工程结构，具有广泛应用前景，具有重要的工程实践意义和社会经济效益。In summary, the method with transverse high-strength concrete partitions proposed by the present invention can effectively improve the problem of longitudinal bond failure after the old and new concrete is stressed as a whole, and at the same time greatly improve the deformation capacity of components during transportation and hoisting, and realize prefabrication The mechanical performance and service performance of reinforced concrete members are comprehensively improved and enhanced, forming a new and efficient prefabricated reinforced concrete beam technology. The prefabricated reinforced concrete beam technology proposed by the present invention has many significant performance advantages such as convenient construction, wide applicability, and high overall performance. It can be widely used in various reinforced concrete engineering structures such as buildings, workshops, and bridges. It has wide application prospects and important Engineering practice significance and social and economic benefits.
附图说明Description of drawings
图1是本发明预制装配钢筋混凝土梁截面示意图。Fig. 1 is a schematic cross-sectional view of a prefabricated assembled reinforced concrete beam of the present invention.
图2是本发明预制部分的立体示意图。Fig. 2 is a schematic perspective view of the prefabricated part of the present invention.
图3是本发明预制部分的侧视图。Figure 3 is a side view of a prefabricated section of the present invention.
图4是本发明预制部分的俯视图。Figure 4 is a top view of the prefabricated section of the present invention.
图5是图4中A-A向视图，即预制U型高强混凝土槽截面图。Fig. 5 is a view from A-A in Fig. 4, that is, a cross-sectional view of a prefabricated U-shaped high-strength concrete tank.
图6是图4中B-B向视图，即预制U型高强混凝土槽中横向高强混凝土隔板的截面图。Fig. 6 is a view from the direction B-B in Fig. 4, that is, a cross-sectional view of a transverse high-strength concrete partition in a prefabricated U-shaped high-strength concrete tank.
图7是本发明现浇部分的立体示意图。Fig. 7 is a schematic perspective view of the cast-in-place part of the present invention.
图8是本发明预制部分的俯视图。Figure 8 is a top view of the prefabricated section of the present invention.
图9是图4中C-C向视图，即预制U型高强混凝土槽截面图。Fig. 9 is a view from direction C-C in Fig. 4, that is, a cross-sectional view of a prefabricated U-shaped high-strength concrete tank.
图10是图4中D-D向视图，即预制U型高强混凝土槽中横向高强混凝土隔板的截面图。Fig. 10 is a view from the direction D-D in Fig. 4, that is, a cross-sectional view of a transverse high-strength concrete partition in a prefabricated U-shaped high-strength concrete tank.
具体实施方式Detailed ways
下面结合附图和实施例详细说明本发明的实施方式。The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.
本发明一种带横向高强混凝土隔板的预制装配钢筋混凝土梁，采用部分预制装配部分现浇的思想，由预制部分和现浇部分组成，如图1至图10所示，包括：预制U型高强混凝土槽1；填充于预制U型高强混凝土槽1中的现浇普通混凝土一2；设置于预制U型高强混凝土槽1中且与槽长方向垂直的若干横向高强混凝土隔板7；设置于预制U型高强混凝土槽1中且与槽长方向垂直的若干闭合的箍筋5；设置于预制U型高强混凝土槽1槽底且与槽长方向平行的若干纵筋一6；以及设置于预制U型高强混凝土槽1顶部的现浇翼缘板。The present invention is a prefabricated and assembled reinforced concrete beam with a transverse high-strength concrete partition, which adopts the idea of partially prefabricated and partially cast-in-place, and consists of a prefabricated part and a cast-in-place part, as shown in Figures 1 to 10, including: prefabricated U-shaped High-strength concrete tank 1; cast-in-place ordinary concrete-2 filled in the prefabricated U-shaped high-strength concrete tank 1; several transverse high-strength concrete partitions 7 arranged in the prefabricated U-shaped high-strength concrete tank 1 and perpendicular to the long direction of the tank; set in A number of closed stirrups 5 in the prefabricated U-shaped high-strength concrete groove 1 and perpendicular to the long direction of the groove; a number of longitudinal reinforcements 6 arranged at the bottom of the prefabricated U-shaped high-strength concrete groove 1 and parallel to the long direction of the groove; and arranged in the prefabricated The cast-in-place flange plate on the top of the U-shaped high-strength concrete tank 1.
其中，如图2、图3、图4、图5和图6所示，箍筋5的下部位于预制U型高强混凝土槽1的槽壁与槽底中，箍筋5的上部悬空，纵筋一6焊接在箍筋5的底部，箍筋5的顶部焊接与纵筋一6平行的纵筋二8，预制U型高强混凝土槽1、箍筋5、纵筋一6、纵筋二8以及横向高强混凝土隔板7组成预制部分。如图7、图8、图9和图10所示，现浇普通混凝土一2和现浇翼缘板组成现浇部分。现浇翼缘板可以采用压型钢板-混凝土组合板或叠合楼板。本实施例中用压型钢板-混凝土组合板，由压型钢板或预制混凝土板3和现浇普通混凝土二4组成，其中压型钢板或预制混凝土板3与预制U型高强混凝土槽1的顶部连接。现浇后，箍筋5的上部以及纵筋二8均位于现浇部分中。Wherein, as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the lower part of the stirrup 5 is located in the groove wall and the bottom of the prefabricated U-shaped high-strength concrete groove 1, the upper part of the stirrup 5 is suspended, and the longitudinal reinforcement The first 6 is welded on the bottom of the stirrup 5, the top of the stirrup 5 is welded to the longitudinal bar 2 8 parallel to the longitudinal bar 6, the prefabricated U-shaped high-strength concrete groove 1, the stirrup 5, the longitudinal bar 6, the longitudinal bar 2 8 and The horizontal high-strength concrete partition 7 forms the prefabricated part. As shown in Fig. 7, Fig. 8, Fig. 9 and Fig. 10, the cast-in-place ordinary concrete-2 and the cast-in-place flange plate form the cast-in-place part. The cast-in-place flange slab can use profiled steel plate-concrete composite slab or laminated floor slab. In this embodiment, the profiled steel plate-concrete composite plate is used, which is composed of profiled steel plate or prefabricated concrete plate 3 and cast-in-place ordinary concrete 2 4, wherein the profiled steel plate or prefabricated concrete plate 3 and the top of the prefabricated U-shaped high-strength concrete tank 1 connect. After cast-in-place, the upper part of the stirrup 5 and the second longitudinal bar 8 are located in the cast-in-place part.
其中：in:
1)预制部分所涉及的混凝土采用高强混凝土，可提高预制装配钢筋混凝土梁的抗裂性能、耐久性能和耐火性能。1) The concrete involved in the prefabricated part adopts high-strength concrete, which can improve the crack resistance, durability and fire resistance of prefabricated reinforced concrete beams.
2)横向高强混凝土隔板的设置，可提高预制和现浇混凝土之间的纵向粘结作用。2) The setting of horizontal high-strength concrete partitions can improve the longitudinal bonding between prefabricated and cast-in-place concrete.
3)在预制U型高强混凝土槽1的槽两端分别设置有混凝土橡胶芯模，方便拆卸、可重复利用，从而便于预制高强混凝土钢筋骨架。3) The two ends of the prefabricated U-shaped high-strength concrete groove 1 are respectively provided with concrete rubber mandrels, which are convenient for disassembly and reusable, thereby facilitating the prefabrication of the high-strength concrete reinforcement skeleton.
4)本发明横向高强混凝土隔板所涉及的强度、厚度、宽度、间距等各设计参数可以根据相应的设计计算方法进行优化设计。4) The strength, thickness, width, spacing and other design parameters involved in the horizontal high-strength concrete partition of the present invention can be optimally designed according to corresponding design calculation methods.
具体施工方法为：The specific construction method is:
首先在工厂预制梁的下部腹板部分，再在工地现场安装梁的下部腹板部分，最后与混凝土楼板一起整浇梁的上部翼缘板部分。梁预制部分中的箍筋外露，梁的下部预制腹板部分为带横向高强混凝土隔板和U型高强混凝土槽(即腹板)的高强混凝土钢筋骨架；梁的上部现浇翼缘板部分可以为钢筋混凝土板、压型钢板-混凝土组合板和预制混凝土叠合板等形式，其中现浇混凝土可以为普通混凝土、再生混凝土、轻骨料混凝土等不同类型混凝土。通过不同形式的预制腹板部分和不同形式的现浇翼缘板的相互组合，可以优化组合成各种类型梁，并各具性能特点和优点，适合于不同工程情况需求。First, the lower web part of the beam is prefabricated in the factory, then the lower web part of the beam is installed on the construction site, and finally the upper flange part of the beam is cast together with the concrete floor. The stirrups in the prefabricated part of the beam are exposed, and the lower prefabricated web part of the beam is a high-strength concrete steel skeleton with transverse high-strength concrete partitions and U-shaped high-strength concrete grooves (ie webs); the upper part of the beam's cast-in-place flange plate can be It is in the form of reinforced concrete slab, profiled steel plate-concrete composite slab and prefabricated concrete laminated slab, among which the cast-in-place concrete can be different types of concrete such as ordinary concrete, recycled concrete, and lightweight aggregate concrete. Through the mutual combination of different forms of prefabricated web parts and different forms of cast-in-place flange plates, various types of beams can be optimally combined, each with its own performance characteristics and advantages, and suitable for different engineering conditions.
本发明在传统U型预制梁基础上，预制部分采用横向高强混凝土隔板和高强混凝土一起浇筑，有效提高预制部分整体性，新旧混凝土界面的抗滑移性，大幅降低预制部分自重，满足现场吊装要求，是一种良好的预制方法。根据本发明提出设计方法，可以进一步优化混凝土隔板的材料、厚度和间距，预制混凝土内表面纹路，预制部分混凝土强度等各个参数，现浇混凝土强度和种类(再生混凝土、轻骨料混凝土等)以实现优化设计。On the basis of traditional U-shaped prefabricated beams, the prefabricated part is poured with transverse high-strength concrete partitions and high-strength concrete, which effectively improves the integrity of the prefabricated part, the slip resistance of the old and new concrete interfaces, greatly reduces the self-weight of the prefabricated part, and satisfies on-site hoisting requirements, is a good prefab method. According to the design method proposed by the present invention, the material, thickness and spacing of concrete partitions, the inner surface texture of precast concrete, the strength of prefabricated part concrete and other parameters, the strength and type of cast-in-place concrete (recycled concrete, lightweight aggregate concrete, etc.) can be further optimized. to achieve optimal design.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256713A (en) * | 2015-11-03 | 2016-01-20 | 苏交科集团股份有限公司 | Semi-assembly type steel concrete composite beam and construction method thereof |
| CN105350717A (en) * | 2015-11-27 | 2016-02-24 | 浙江大学 | Reinforcement pin joint permanency beam formwork, concrete structural member and manufacturing method |
| CN105350718A (en) * | 2015-11-27 | 2016-02-24 | 浙江大学 | Reinforcement permanency beam formwork and manufacturing method for concrete structural member with shearing resistance |
| CN105369981A (en) * | 2015-11-27 | 2016-03-02 | 浙江大学 | Reinforcement-type permanent beam form with embedded buckle connection, concrete structural element and manufacture method thereof |
| CN105946099A (en) * | 2016-05-19 | 2016-09-21 | 吉林省快构建筑科技有限公司 | Grouted fabricated concrete beam and construction method thereof |
| CN105971175A (en) * | 2016-05-17 | 2016-09-28 | 张宗楼 | Hollow laminated floor slab |
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| CN114934632A (en) * | 2022-05-24 | 2022-08-23 | 华南理工大学 | Partially prefabricated U-shaped steel-wrapped recycled block concrete beam and construction method thereof |
| CN116214678A (en) * | 2022-11-22 | 2023-06-06 | 上海隧道工程有限公司 | A mold and method for studying the flexural, compressive and splitting tensile properties of composite concrete structures |
| WO2025103288A1 (en) * | 2023-11-15 | 2025-05-22 | 同济大学 | U-shaped recycled concrete composite beam, and design and construction method therefor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641169Y (en) * | 2003-09-26 | 2004-09-15 | 吴方伯 | Steel bar reinforced concret prefabricate structure members used for overlaid beam |
| CN200943260Y (en) * | 2006-06-23 | 2007-09-05 | 清华大学 | Penetrating type steel pipe concrete column - cap type combination beam jointing gusset |
| CN101851983A (en) * | 2010-05-19 | 2010-10-06 | 华侨大学 | A formless U-shaped steel concrete composite beam |
| KR20110087165A (en) * | 2010-01-25 | 2011-08-02 | (주)엠씨에스에스티기술사사무소 | Composite member with internal groove of square section and its manufacturing method |
-
2014
- 2014-12-05 CN CN201410736484.6A patent/CN104594555A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641169Y (en) * | 2003-09-26 | 2004-09-15 | 吴方伯 | Steel bar reinforced concret prefabricate structure members used for overlaid beam |
| CN200943260Y (en) * | 2006-06-23 | 2007-09-05 | 清华大学 | Penetrating type steel pipe concrete column - cap type combination beam jointing gusset |
| KR20110087165A (en) * | 2010-01-25 | 2011-08-02 | (주)엠씨에스에스티기술사사무소 | Composite member with internal groove of square section and its manufacturing method |
| CN101851983A (en) * | 2010-05-19 | 2010-10-06 | 华侨大学 | A formless U-shaped steel concrete composite beam |
Non-Patent Citations (1)
| Title |
|---|
| 张劭明等: "RPC-NC叠合面剪切滑移试验研究", 《铁道标准设计》 * |
Cited By (17)
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| CN105369981B (en) * | 2015-11-27 | 2018-03-23 | 浙江大学 | A kind of arrangement of reinforcement formula buckle connection permanent beam template, concrete structure member and manufacture method |
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