Existing building side wall and new building roof waterproof node
Technical field
The utility model relates to a kind of buildings waterproof joint structure, relates in particular to a kind of existing building side wall and new building roof waterproof node.
Background technology
At present, in the existing transformation of some old buildings, often owing to can have certain shrinkage joint between old building and side and the newly-built building, if do not have Lock gate between the shrinkage joint then can cause the infiltration of building.Existing waterproof generally can be provided with waterproofing course between existing building and new building, but because closing in place of waterproofing course is difficult to carry out processing, simultaneously long term exposure outside environment, wind and weather, the life-span is not long.Existing technology people need to outwards lengthen the section concrete of renovating out as the shelves wall on existing building, but such method not only engineering quantity is large, simultaneously, can not well fix in barricade and the connection between the existing building that existing building lengthens.
The utility model content
The purpose of this utility model is to solve above-mentioned technical problem, and a kind of existing building side wall and new building roof waterproof node are provided.
The purpose of this utility model is achieved through the following technical solutions:
Existing building side wall and new building roof waterproof node, comprise existing building and the new building adjacent with existing building, be provided with the shrinkage joint between described existing building and the new building, be provided with waterproofing course on the described shrinkage joint, one end of described waterproofing course is fixed in existing building, new building is fixed in other end extension, also be equipped with flashing plate on the described waterproofing course, one end of described flashing plate is fixed in and closing in place of waterproofing course on existing building, and the opposite side of flashing plate extends to the new building top.
Preferably; described new building is roofing; described existing building is the building side wall; the bottom of described roofing is deck, and described deck is disposed with cement mortar screeding layer, insulation layer, the second cement mortar screeding layer, coil waterproof layer, nonwoven topping, cement mortar protective course from top to bottom.
Preferably, described coil waterproof layer is provided with two-layer, connects by hot air welding between closing in place of coil waterproof layer, and described waterproofing course is arranged on the top of upper strata coil waterproof layer and connects by hot air welding.
Preferably, be provided with waterstop between described waterproofing course and the side wall, the fixed part of flashing plate and side wall also is provided with elongated muscle, and flashing plate passes elongated muscle by expansion bolt and flashing plate is fixed in side wall, also is fixedly connected with by concrete between described elongated muscle and side wall.
The beneficial effects of the utility model are mainly reflected in: be used for the transformation of old building, and the processing at shrinkage joint between existing building side wall and the new building roofing, construction is simple, convenient, and water resistance is good, saves operating expenses.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, the utility model has disclosed a kind of existing building side wall and new building roof waterproof node, comprise existing building and the new building adjacent with existing building, for preventing building member because climate temperature changes (heat rises, shrinkage), make structure generation crack or destruction, be provided with the shrinkage joint between the general adjacent building.
New building described in the utility model is roofing, and described existing building for performing the waterproofing work at shrinkage joint, is provided with waterproofing course 10 for building side wall 11 on the described shrinkage joint.One end of described waterproofing course 10 is fixed in the side wall 11 of existing building, and the other end extends the roofing that is fixed in new building.Further be to extend the parapet top of being fixed in roofing.The bottom of described roofing is deck 2, and described deck 2 is disposed with cement mortar screeding layer 3, insulation layer 4, the second cement mortar screeding layer, coil waterproof layer, nonwoven topping 6, cement mortar protective course 7 from top to bottom.
Described coil waterproof layer is provided with two-layer, and closing in place of two layers of coiled materials waterproofing course connects by hot air welding.In conjunction with Fig. 1, first floor coil waterproof layer 51 mainly is arranged on parapet and roofing junction, and is fixed with cement mortar screeding layer 3 by screw 8 and is connected.52 of second layer coil waterproof layers are to extend from parapet to be covered in first floor coil waterproof layer 51 tops, and such purpose is in order to reach better waterproof effect.Described waterproofing course 10 also is to be connected by hot air welding with second layer coil waterproof layer 52.Above concrete structure job practices and prior art are basically identical, do not repeat them here.
Improvement of the present utility model is mainly reflected in, and also is equipped with flashing plate 12 on the described waterproofing course 10, and described flashing plate 12 is the aluminium zinc flashing plates that adopt thin-walled.One end of described flashing plate 12 is fixed in and closing in place of waterproofing course 10 on side wall, and the opposite side of flashing plate 12 extends to the roofing top, specifically is the top that extends to parapet.
Be provided with waterstop 16 between described waterproofing course 10 and the side wall, described waterstop 16 is rubber fastening band, flashing plate 12 also is provided with elongated muscle 14 with the fixed part of side wall 11, flashing plate 12 fixedly be to pass elongated muscle 14 by expansion bolt 13 to be fixed in side wall 11.In order also to play waterproof so that waterproofing course 10 closes up, and waterproofing course 10 played the effect of protection, described elongated muscle 14 with also be fixedly connected with by concrete 15 with 11 of side walls.Concrete, be the closing between waterproofing course 10, the flashing plate 12 to be built by concrete 15 bury.
The utility model has been abandoned the existing new cement block that blocks of again building on the existing building side wall, so that construction simple, convenience just; Simultaneously, water resistance is good, saves greatly operating expenses, also so that appearance looks elegant.
The utility model still has multiple concrete embodiment, and all employings are equal to replacement or equivalent transformation and all technical schemes of forming, all drop within the claimed scope of the utility model.