CN110172917A - A kind of template system and construction method of the prefabricated wafer board of UHPC - Google Patents
A kind of template system and construction method of the prefabricated wafer board of UHPC Download PDFInfo
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 71
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000009415 formwork Methods 0.000 claims abstract description 41
- 235000012773 waffles Nutrition 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims description 20
- 230000002787 reinforcement Effects 0.000 claims description 11
- 239000004567 concrete Substances 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000009417 prefabrication Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
本发明公开了一种UHPC预制华夫板的模板系统及施工方法。其施工方法包括：(1)拼装UHPC浇筑槽；(2)设置钢筋定位线并绑扎钢筋；(3)设置UHPC浇筑块基准线；(4)拼装浇筑块和浇筑带浇筑网格；(5)将浇筑网格按基准线搭设在浇筑槽上；(6)浇筑UHPC并振捣，抹平UHPC表面；(7)常温养护后拆除模板；(8)蒸汽养护。其拆模过程包括：(1)松动浇筑带浇筑侧板处的螺栓；(2)将整个浇筑网格与浇筑槽进行分离，然后松动浇筑带与浇筑块处的螺栓；(3)将浇筑侧板滑离滑槽；(4)将UHPC华夫板与浇筑底板进行分离。本发明模板系统、施工方法及拆模过程，具有可以变化多种模数，进行循环利用，拆模方便，实现批量化预制，施工高效便捷，环保安全等优点，并可保证整体精度，克服了UHPC华夫板预制难题。
The invention discloses a formwork system and a construction method of a UHPC prefabricated waffle board. The construction method includes: (1) assembling the UHPC pouring trough; (2) setting the steel bar positioning line and binding the steel bars; (3) setting the UHPC pouring block datum line; (4) assembling the pouring block and the pouring belt pouring grid; (5) Put the pouring grid on the pouring trough according to the reference line; (6) pour UHPC and vibrate to smooth the surface of UHPC; (7) remove the formwork after normal temperature curing; (8) steam curing. The form removal process includes: (1) loosening the bolts at the pouring side plate of the pouring belt; (2) separating the entire pouring grid from the pouring groove, and then loosening the bolts at the pouring belt and the pouring block; (3) separating the pouring side The plate slides away from the chute; (4) separate the UHPC waffle plate from the pouring base plate. The formwork system, construction method and form removal process of the present invention have the advantages of being able to change a variety of moduli for recycling, convenient form removal, batch prefabrication, efficient and convenient construction, environmental protection and safety, etc., and can ensure the overall accuracy and overcome the UHPC waffle plate prefabrication puzzle.
Description
技术领域technical field
本发明涉及桥梁工程技术领域，尤其涉及一种UHPC预制华夫板的模板系统及施工方法。The invention relates to the technical field of bridge engineering, in particular to a formwork system and construction method of UHPC prefabricated waffle panels.
背景技术Background technique
桥梁快速施工(Accelerated BridgeConstruction,ABC)起源于美国，主要是通过构件的工厂化预制、采用专门的运输设备将构件运至现场并进行安装，实现加快桥梁现场建设速度的一种技术。钢-混组合梁具有上部混凝土板受压下部钢梁受拉的优异力学性能，并且易于实现钢梁与预制混凝土板的拼装，首先被工程人员予以考虑，应用在桥梁快速施工中。但是由于传统混凝土板较厚，自重较大，不易实现吊装要求，而且负弯区的混凝土受拉易开裂，导致组合梁耐久性较差。Bridge rapid construction (Accelerated Bridge Construction, ABC) originated in the United States, mainly through the factory prefabrication of components, the use of special transportation equipment to transport components to the site and install them, to achieve a technology that speeds up the construction of bridges on site. Steel-concrete composite beams have excellent mechanical properties that the upper concrete slab is under compression and the lower steel girder is under tension, and it is easy to realize the assembly of steel beams and precast concrete slabs. It was first considered by engineers and used in rapid bridge construction. However, because the traditional concrete slab is thick and has a large self-weight, it is difficult to meet the hoisting requirements, and the concrete in the negative bending area is easily cracked under tension, resulting in poor durability of the composite beam.
因此，提出用超高性能混凝土(UHPC)板代替传统混凝土板，其具有优异的力学特性和良好的耐久性，而且自重较轻。由于UHPC较高的材料强度，因此较小的板厚即可达到受力要求，但是板的厚度不够导致其刚度不足，继而提出带有纵横肋形式的华夫板结构。传统的普通混凝土华夫板模板系统较少而且精度较差，拆模不便，不易实现模板的参数调整和循环利用，不适用于UHPC华夫板的预制。Therefore, it is proposed to replace traditional concrete slabs with ultra-high performance concrete (UHPC) slabs, which have excellent mechanical properties and good durability, and are lighter in weight. Due to the high material strength of UHPC, a small plate thickness can meet the force requirements, but the insufficient thickness of the plate leads to insufficient rigidity, and then a waffle plate structure with longitudinal and transverse ribs is proposed. The traditional ordinary concrete waffle slab formwork system has few and poor precision, it is inconvenient to remove the formwork, it is difficult to realize the parameter adjustment and recycling of the formwork, and it is not suitable for the prefabrication of UHPC waffle slabs.
发明内容Contents of the invention
为了解决上述问题，本发明的目的在于提供一种UHPC预制华夫板模板系统及由下至上的浇筑施工方法，以解决现有的华夫板模板系统拆模不便，不易实现模板的参数调整和循环利用的问题。In order to solve the above problems, the object of the present invention is to provide a UHPC prefabricated waffle slab formwork system and a bottom-up pouring construction method to solve the inconvenience of removing the formwork of the existing waffle slab formwork system, and it is difficult to realize the parameter adjustment and adjustment of the formwork. The question of recycling.
为达到上述目的，本发明采用的一种技术方案是：一种UHPC预制华夫板的模板系统，由浇筑槽、浇筑块和浇筑带三部分组成。In order to achieve the above purpose, a technical solution adopted by the present invention is: a formwork system for UHPC prefabricated waffle panels, which consists of three parts: pouring trough, pouring block and pouring belt.
进一步的，所述浇筑槽由可插入式钢板或铝合金板拼接在一起。Further, the pouring trough is spliced together by insertable steel plates or aluminum alloy plates.
进一步的，所述浇筑带包括横向浇筑带和纵向浇筑带，浇筑带与浇筑块通过螺栓连接构成浇筑网格，其中浇筑块为U形、梯形或矩形。Further, the casting belt includes a horizontal casting belt and a vertical casting belt, and the casting belt and the casting blocks are connected by bolts to form a casting grid, wherein the casting blocks are U-shaped, trapezoidal or rectangular.
本发明的目的还在于提供一种UHPC预制华夫板模板系统的施工方法，其是通过以下步骤实现的：The object of the present invention is also to provide a construction method of UHPC prefabricated waffle board formwork system, which is realized through the following steps:
(1)拼装UHPC浇筑槽；(2)设置钢筋定位线并绑扎钢筋，并在绑扎后的钢筋网下部根据保护层厚度铺垫钢筋垫块或混凝土垫块；(3)设置UHPC浇筑块基准线；(4)拼装浇筑块和浇筑带为整体浇筑网格；(5)将浇筑网格按基准线搭设在浇筑槽上，并在模板系统接缝缝隙中涂抹原子灰；(6)浇筑UHPC并振捣，并抹平UHPC表面；(7)常温养护后拆除模板；(8)进行蒸汽养护。(1) Assemble the UHPC pouring trough; (2) Set the positioning line of the reinforcement and bind the reinforcement, and place a reinforcement pad or concrete pad on the lower part of the bound reinforcement mesh according to the thickness of the protective layer; (3) Set the UHPC pouring block reference line; (4) Assemble the pouring blocks and pouring strips as an integral pouring grid; (5) Put the pouring grid on the pouring tank according to the reference line, and apply putty in the joints of the formwork system; (6) Pouring UHPC and vibrating Pound and smooth the UHPC surface; (7) remove the formwork after curing at room temperature; (8) perform steam curing.
进一步的，在步骤(6)中，UHPC分两次浇筑，设有第一浇筑刻度、第二浇筑刻度，所述第一浇筑刻度位于模板系统肋、板交界处，所述第二浇筑刻度位于模板系统顶部。Further, in step (6), the UHPC is poured twice, with a first pouring scale and a second pouring scale, the first pouring scale is located at the junction of the formwork system ribs and plates, and the second pouring scale is located at Template system top.
进一步的，在步骤(6)中，浇筑UHPC完成后通过附着式振捣器振捣。Further, in step (6), the UHPC is vibrated by an attached vibrator after the UHPC is poured.
进一步的，在步骤(6)中，将整个模板系统放置振动台上实现边浇筑边振动。Further, in step (6), the entire formwork system is placed on a vibration table to realize vibration while pouring.
进一步的，在步骤(6)中还包括：在浇筑好的UHPC的模板系统上密封一层塑料薄膜。Further, the step (6) also includes: sealing a layer of plastic film on the molded UHPC template system.
进一步的，步骤(8)中UHPC华夫板放置蒸汽发生器营造的密闭空间中进行蒸汽养护，养护时间为72小时，温度≥90℃，空气湿度≥90％。Further, in step (8), the UHPC waffle board is placed in a closed space created by a steam generator for steam curing, the curing time is 72 hours, the temperature is ≥90°C, and the air humidity is ≥90%.
本发明的目的还在于提供一种UHPC预制华夫板模板系统的拆模过程，其包括如下步骤：The object of the present invention is also to provide a process of removing formwork of UHPC prefabricated waffle board formwork system, which includes the following steps:
(1)松动横向浇筑带和纵向浇筑带与浇筑槽的浇筑侧板处的螺栓；(2)将整个浇筑网格与浇筑槽进行分离，然后松动横向浇筑带和纵向浇筑带与浇筑块处的螺栓；(3)将浇筑侧板滑离滑槽；(4)将浇筑好的UHPC华夫板与浇筑槽的浇筑底板进行分离。(1) Loosen the bolts at the pouring side plate of the horizontal pouring zone and the longitudinal pouring zone and the pouring trough; (2) Separate the entire pouring grid from the pouring trough, and then loosen the horizontal pouring zone, the longitudinal pouring zone and the pouring block. Bolts; (3) slide the pouring side plate away from the chute; (4) separate the poured UHPC waffle plate from the pouring bottom plate of the pouring trough.
与现有技术相比，本发明的技术方案所带来的有益效果是：Compared with the prior art, the beneficial effects brought by the technical solution of the present invention are:
1.本发明的一种UHPC预制华夫板的模板系统，由浇筑槽、浇筑块和浇筑带通过滑槽和和螺栓拼装在一起，具有可以变化多种模数，进行循环利用的优点。1. The formwork system of a kind of UHPC prefabricated waffle plate of the present invention is assembled together by chute and bolt by pouring trough, pouring block and pouring belt, has the advantage that can change multiple modulus, and carries out recycling.
2.本发明的一种UHPC预制华夫板的模板系统的施工方法，创新性的施行由下至上的浇筑施工方法，可以实现批量化预制，施工高效便捷，环保安全，并可以保证华夫板整体精度，克服了当前UHPC华夫板预制难题，具有良好的经济效益和实用价值。2. The construction method of the UHPC prefabricated waffle board formwork system of the present invention innovatively implements a bottom-up pouring construction method, which can realize batch prefabrication, efficient and convenient construction, environmental protection and safety, and can guarantee the waffle board The overall accuracy overcomes the current prefabrication problems of UHPC waffle boards, and has good economic benefits and practical value.
3.本发明的一种UHPC预制华夫板的模板系统的拆模方法，拆模方便，简单易行，不会破坏华夫板整体，易于清洗与重复利用。3. The formwork removal method of a UHPC prefabricated waffle panel system of the present invention is convenient, simple and easy to remove, will not damage the entire waffle panel, and is easy to clean and reuse.
附图说明Description of drawings
图1为本发明一实施例中UHPC预制华夫板模板系统的结构示意图；Fig. 1 is the structural representation of the UHPC prefabricated waffle board formwork system in an embodiment of the present invention;
图2为浇筑槽底板与侧板的滑槽连接详图；Fig. 2 is the detailed drawing of the chute connection between the bottom plate of the pouring trough and the side plate;
图3为横、纵浇筑带通过螺栓与浇筑块进行连接的详图。Figure 3 is a detailed view of the connection between the horizontal and vertical pouring strips and the pouring blocks through bolts.
图4(a)至图4(d)分别为中间标准浇筑快、横向端部浇筑块、纵向端部浇筑块和横纵交界处浇筑块的结构示意图。Figure 4(a) to Figure 4(d) are the structural schematic diagrams of the middle standard pouring block, the lateral end pouring block, the longitudinal end pouring block and the horizontal and vertical junction pouring block respectively.
图5为UHPC预制华夫板模板系统的施工方法流程图。Fig. 5 is a flow chart of the construction method of the UHPC prefabricated waffle board formwork system.
附图标记：1-浇筑侧板，2-浇筑底板，3-浇筑槽，4-滑槽，5-浇筑块，6-横向浇筑带，7-纵向浇筑带，8-横向浇筑带开口，9-纵向浇筑带开口，10-横向浇筑侧板开口，11-纵向浇筑侧板开口，12-螺栓。Reference signs: 1- pouring side plate, 2- pouring bottom plate, 3- pouring trough, 4- chute, 5- pouring block, 6- horizontal pouring zone, 7- longitudinal pouring zone, 8- opening of horizontal pouring zone, 9 - longitudinal pouring belt opening, 10 - horizontal pouring side plate opening, 11 - longitudinal pouring side plate opening, 12 - bolt.
具体实施方式Detailed ways
为了使本发明的目的、技术方案和优点更加清楚，下面结合附图对本发明作进一步阐述。In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.
图1为本发明一实施例中所述UHPC华夫板模板系统的结构示意图。一种预制UHPC华夫板的模板系统，包括钢或铝合金浇筑侧板1与浇筑底板2拼装成的浇筑槽3，U形、矩形或梯形的浇筑块5，横向浇筑带6和纵向浇筑带7，螺栓12。其中浇筑块5、横向浇筑带6和纵向浇筑带7通过螺栓12拼装成浇筑网格，横向浇筑带6和纵向浇筑带7通过螺栓12和横、向浇筑侧板开口10、11连接在浇筑槽侧板1上。值得说明的是浇筑块5包括标准浇筑块、横向端部浇筑块、纵向端部浇筑块、纵横交界处浇筑块。Fig. 1 is a schematic structural diagram of the UHPC waffle plate formwork system in an embodiment of the present invention. A formwork system for prefabricated UHPC waffle panels, including a pouring trough 3 assembled from steel or aluminum alloy pouring side panels 1 and a pouring bottom plate 2, U-shaped, rectangular or trapezoidal casting blocks 5, horizontal pouring belts 6 and longitudinal casting belts 7, 12 bolts. Among them, the pouring block 5, the horizontal pouring belt 6 and the vertical casting belt 7 are assembled into a pouring grid by bolts 12, and the horizontal casting belt 6 and the longitudinal casting belt 7 are connected to the pouring groove by bolts 12 and the openings 10 and 11 of the lateral and lateral casting side plates. on side panel 1. It is worth noting that the pouring blocks 5 include standard pouring blocks, lateral end pouring blocks, longitudinal end pouring blocks, and vertical and horizontal junction pouring blocks.
图2为浇筑侧板1与浇筑底板2处的滑槽详图。Fig. 2 is a detailed view of the chute at the pouring side plate 1 and the pouring bottom plate 2.
图3为横向浇筑带6和纵向浇筑带7通过螺栓12与浇筑块5进行连接的详图。FIG. 3 is a detailed view of the connection between the horizontal casting belt 6 and the vertical casting belt 7 and the casting block 5 through bolts 12 .
图4(a)至图4(d)为4类浇筑块详图，依次为标准浇筑块，横向端部浇筑块，纵向端部浇筑块，纵横交界处浇筑块，其中标准浇筑块通过五套螺栓12与横向浇筑带6和纵向浇筑带7连接在一起，横向端部浇筑块、纵向端部浇筑块通过四套螺栓12与横向浇筑带6和纵向浇筑带7连接在一起，纵横交界处浇筑块通过三套螺栓12与横向浇筑带6和纵向浇筑带7连接在一起。Figure 4(a) to Figure 4(d) are detailed drawings of four types of pouring blocks, which are standard pouring blocks, horizontal end pouring blocks, longitudinal end pouring blocks, and vertical and horizontal junction pouring blocks, among which standard pouring blocks pass through five sets The bolts 12 are connected with the horizontal pouring zone 6 and the longitudinal pouring zone 7, and the horizontal end pouring block and the longitudinal end pouring block are connected together with the horizontal pouring zone 6 and the longitudinal pouring zone 7 through four sets of bolts 12. The blocks are connected together with the transverse cast strip 6 and the longitudinal cast strip 7 by three sets of bolts 12 .
图5为UHPC预制华夫板模板系统施工方法的一种实施例流程，包括以下步骤：Fig. 5 is a flow chart of an embodiment of the UHPC prefabricated waffle formwork system construction method, including the following steps:
拼装UHPC浇筑槽，UHPC浇筑槽3由浇筑侧板1与浇筑底板2通过滑槽4拼接而成，浇筑侧板1与浇筑底板2既要满足厚度不要太高，而且要保证具备一定的刚度。因此，可以选择钢板、铝合金板等其他材料的板材。浇筑侧板1与浇筑底板2具有多种模数可供选择，以实现华夫板整体长度与宽度变化的目的；Assembling the UHPC pouring trough, the UHPC pouring trough 3 is formed by splicing the pouring side plate 1 and the pouring bottom plate 2 through the chute 4. The pouring side plate 1 and the pouring bottom plate 2 must not only meet the thickness not too high, but also ensure a certain rigidity. Therefore, plates of other materials such as steel plates and aluminum alloy plates can be selected. The pouring side plate 1 and the pouring bottom plate 2 have a variety of modules to choose from, so as to realize the purpose of changing the overall length and width of the waffle plate;
设置钢筋定位线并绑扎钢筋，根据配筋要求确定钢筋位置，设置垫块以满足最小保护层的要求，绑扎钢筋成为钢筋网，由于选用超高性能混凝土力学性能优异，具有较高的抗压强度和抗拉强度，因此通常选用HRB400以上的钢筋以充分发挥超高性能混凝土的力学性能。垫块可以选择UHPC垫块、普通混凝土垫块、钢筋垫块等其他合适材料的垫块；Set the positioning line of the reinforcement and bind the reinforcement, determine the location of the reinforcement according to the requirements of the reinforcement, set up the spacer to meet the requirements of the minimum protective layer, and bind the reinforcement to become a reinforcement mesh. Due to the excellent mechanical properties of ultra-high performance concrete, it has high compressive strength And tensile strength, so the steel bars above HRB400 are usually selected to give full play to the mechanical properties of ultra-high performance concrete. Pads can choose UHPC pads, ordinary concrete pads, steel pads and other suitable materials;
设置UHPC浇筑块基准线，根据纵横肋的间距选用合适模数的浇筑块5，根据纵横肋的宽度确定浇筑块的安放位置，其中浇筑块具备U形，矩形，梯形可供选择，浇筑块分为中间标准浇筑块，横向端部浇筑块，纵向端部浇筑块，横纵交界处浇筑块；Set the reference line of the UHPC pouring block, select the pouring block 5 with the appropriate modulus according to the distance between the vertical and horizontal ribs, and determine the placement position of the pouring block according to the width of the longitudinal and horizontal ribs, among which the pouring block has U shape, rectangle and trapezoid to choose from, and the pouring block is divided into It is the middle standard pouring block, the horizontal end pouring block, the longitudinal end pouring block, and the horizontal and vertical junction pouring block;
拼装浇筑块与浇筑带为浇筑网格，根据确定好的浇筑基准线，将浇筑块5与横向浇筑带6和纵向浇筑带7通过螺栓12连接为浇筑网格，其中中间标准浇筑块需要五套螺栓12与横向浇筑带6和纵向浇筑带7进行连接，横、纵向端部浇筑块需要四套螺栓12与横向浇筑带6和纵向浇筑带7进行连接，横纵交界处浇筑块需要三套螺栓12与横向浇筑带6和纵向浇筑带7进行连接；Assemble the pouring block and the pouring belt to form a pouring grid. According to the determined pouring datum line, the pouring block 5, the horizontal pouring belt 6 and the longitudinal pouring belt 7 are connected by bolts 12 to form a pouring grid, and five sets of intermediate standard pouring blocks are required. The bolts 12 are connected with the horizontal pouring zone 6 and the longitudinal pouring zone 7, four sets of bolts 12 are required for the horizontal and vertical end pouring blocks to be connected with the horizontal pouring zone 6 and the longitudinal pouring zone 7, and three sets of bolts are required for the pouring blocks at the horizontal and vertical junctions 12 is connected with horizontal casting belt 6 and vertical casting belt 7;
将浇筑网格按基准线搭接在浇筑槽上，将横向浇筑带6和纵向浇筑带7与浇筑块5连接而成的浇筑网格根据基准线确定的位置通过横、纵向浇筑侧板开口10、11和螺栓12连接在浇筑槽3上；The pouring grid is lapped on the pouring trough according to the reference line, and the pouring grid formed by connecting the horizontal pouring belt 6 and the vertical casting belt 7 with the pouring block 5 passes through the horizontal and vertical pouring side plate openings 10 according to the position determined by the reference line , 11 and bolt 12 are connected on the pouring groove 3;
浇筑UHPC并振捣，抹平UHPC表面，将搅拌机搅拌而成的UHPC分两次浇筑在预制UHPC华夫板模板系统中，第一次浇筑线位于模板系统板肋交界处，第二次浇筑线位于模板系统顶部。浇筑完毕每一次及时使用附着式振动器进行振捣，振捣顺序可有单排中间向两端振捣、双排中间向两端并排振捣、双排中间向两端交错振捣、双排一端向另一端并排振捣、双排一端向另一端交错振捣等多种方式。振捣完毕及时使用抹刀将UHPC抹平，抹平完毕在模板系统上部密封一层塑料薄膜，以实现保湿养护。需要说明的是，浇筑之前在浇筑槽与浇筑块上均涂抹了脱模剂；Pouring UHPC and vibrating, smoothing the UHPC surface, pouring the UHPC stirred by the mixer into the prefabricated UHPC waffle slab formwork system twice, the first pouring line is located at the junction of the formwork system ribs, and the second pouring line Located on top of the templating system. After pouring, the attached vibrator is used to vibrate in time every time. The vibrating sequence can be vibrated from the middle to both ends of a single row, vibrated side by side from the middle to both ends of a double row, alternately vibrated from the middle to both ends of a double row, and vibrated in a double row. Side by side vibrating from one end to the other end, double-row staggered vibrating from one end to the other, etc. After vibrating, use a spatula to smooth the UHPC in time. After smoothing, seal a layer of plastic film on the upper part of the formwork system to achieve moisturizing and maintenance. It should be noted that the release agent was applied to both the pouring tank and the pouring block before pouring;
常温养护后拆除模板，将UHPC放置适合条件下72小时进行常温养护，此时UHPC具备一定的强度，可以进行拆模，拆模时按照以下步骤:After normal temperature curing, the formwork is removed, and the UHPC is placed under suitable conditions for 72 hours for normal temperature curing. At this time, the UHPC has a certain strength and can be removed from the formwork. Follow the steps below when removing the formwork:
1.松动横向浇筑带6和纵向浇筑带6与浇筑侧板1处的螺栓12；1. Loosen the bolts 12 at the horizontal pouring belt 6 and the longitudinal pouring belt 6 and the pouring side plate 1;
2.将整个浇筑网格与浇筑槽3进行分离，然后松动横向浇筑带6和纵向浇筑带7与浇筑块5处的螺栓12；2. Separate the entire pouring grid from the pouring groove 3, and then loosen the bolts 12 at the horizontal pouring belt 6, the longitudinal pouring belt 7 and the pouring block 5;
3.将浇筑侧板1滑离滑槽4；3. Slide the pouring side plate 1 away from the chute 4;
4.将浇筑好的UHPC华夫板与浇筑槽3的浇筑底板2进行分离；4. Separate the poured UHPC waffle plate from the pouring bottom plate 2 of the pouring tank 3;
蒸汽养护，将批量浇筑好的UHPC华夫板放置蒸汽发生器营造的密闭空间中养护72小时，其中温度不低于90℃，空气湿度不低于90％。For steam curing, put the UHPC waffle board cast in batches in a closed space created by a steam generator for curing for 72 hours, in which the temperature is not lower than 90°C and the air humidity is not lower than 90%.
作为上述实施例的优化方案，可以将预制UHPC华夫板模板系统提前放置振动台上边浇筑边振动，充分保证浇筑密实。As an optimization scheme of the above-mentioned embodiment, the prefabricated UHPC waffle plate formwork system can be placed on the vibrating table in advance to vibrate while pouring, so as to fully ensure the compactness of pouring.
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112809893A (en) * | 2021-01-20 | 2021-05-18 | 中国十七冶集团有限公司 | Forming die of cross beam prefabricated part and mounting and using method thereof |
| CN113512959A (en) * | 2021-08-19 | 2021-10-19 | 甘肃交设智远实业有限公司 | An assembled prestressed UHPC orthotropic waffle slab culvert structure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2718465B2 (en) * | 1993-02-16 | 1998-02-25 | 株式会社ショックベトン・ジャパン | PC curtain wall version |
| JPH10217225A (en) * | 1997-02-06 | 1998-08-18 | Ishikawajima Constr Materials Co Ltd | Method of manufacturing concrete article and formwork for concrete article |
| JP2000185311A (en) * | 1998-12-21 | 2000-07-04 | Takamura Sogyo Kk | Production mold of residual form for concrete structure |
| CN2459380Y (en) * | 2000-10-20 | 2001-11-14 | 润弘精密工程事业股份有限公司 | Concrete grating slab vertical and horizontal reinforcement pre-assembly device |
| JP3527495B2 (en) * | 2001-12-14 | 2004-05-17 | 大建コンクリート株式会社 | Method of manufacturing jointed concrete panels and lattice formwork |
| CN101914967A (en) * | 2010-08-17 | 2010-12-15 | 吴方伯 | Reinforced concrete hollow floor and construction method |
| CN205329988U (en) * | 2016-02-03 | 2016-06-22 | 深圳卓诺中科科技发展有限公司 | Wafer board 's construction structures |
| CN109025017A (en) * | 2018-08-17 | 2018-12-18 | 大连三川建设集团股份有限公司 | Reinforced concrete hollow overlaps two-way ribbed slab floor and its method of construction |
| CN208343138U (en) * | 2018-06-20 | 2019-01-08 | 中国葛洲坝集团三峡建设工程有限公司 | A kind of concrete mats block shaping device |
| CN208615019U (en) * | 2018-05-03 | 2019-03-19 | 迪庆州御寒房屋保暖新材料有限公司 | A kind of aerated bricks molding machine |
-
2019
- 2019-05-26 CN CN201910443146.6A patent/CN110172917A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2718465B2 (en) * | 1993-02-16 | 1998-02-25 | 株式会社ショックベトン・ジャパン | PC curtain wall version |
| JPH10217225A (en) * | 1997-02-06 | 1998-08-18 | Ishikawajima Constr Materials Co Ltd | Method of manufacturing concrete article and formwork for concrete article |
| JP2000185311A (en) * | 1998-12-21 | 2000-07-04 | Takamura Sogyo Kk | Production mold of residual form for concrete structure |
| CN2459380Y (en) * | 2000-10-20 | 2001-11-14 | 润弘精密工程事业股份有限公司 | Concrete grating slab vertical and horizontal reinforcement pre-assembly device |
| JP3527495B2 (en) * | 2001-12-14 | 2004-05-17 | 大建コンクリート株式会社 | Method of manufacturing jointed concrete panels and lattice formwork |
| CN101914967A (en) * | 2010-08-17 | 2010-12-15 | 吴方伯 | Reinforced concrete hollow floor and construction method |
| CN205329988U (en) * | 2016-02-03 | 2016-06-22 | 深圳卓诺中科科技发展有限公司 | Wafer board 's construction structures |
| CN208615019U (en) * | 2018-05-03 | 2019-03-19 | 迪庆州御寒房屋保暖新材料有限公司 | A kind of aerated bricks molding machine |
| CN208343138U (en) * | 2018-06-20 | 2019-01-08 | 中国葛洲坝集团三峡建设工程有限公司 | A kind of concrete mats block shaping device |
| CN109025017A (en) * | 2018-08-17 | 2018-12-18 | 大连三川建设集团股份有限公司 | Reinforced concrete hollow overlaps two-way ribbed slab floor and its method of construction |
Non-Patent Citations (3)
| Title |
|---|
| AALETI S等: "《Design Guide for Precast UHPC Waffle Deck Panel System including Connection》", 31 December 2013 * |
| KACIE CAPLE D’ALESSANDRO: "Biaxial Behavior of Ultra-High Performance Concrete and Untreated UHPC Waffle Slab Bridge Deck Design and Testing", 《VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY》 * |
| SRITHARAN S等: "Structural Characterization of", 《IN TRANS PROJECT REPORTS》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112809893A (en) * | 2021-01-20 | 2021-05-18 | 中国十七冶集团有限公司 | Forming die of cross beam prefabricated part and mounting and using method thereof |
| CN113512959A (en) * | 2021-08-19 | 2021-10-19 | 甘肃交设智远实业有限公司 | An assembled prestressed UHPC orthotropic waffle slab culvert structure |
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