Glue stick out of the Bridge
Time：2013/09/18 8:45:12 Hits：1324
Is used for access , or for viewing ! The bridge has been idle , who use the bridge , who would come from this bridge
" $ 30 million, was opened to traffic in just 49 days to less than two years on both sides of the bridge railing lost 80 stone 26 , a serious threat to the safety of pedestrians past ! " Recently, some friends broke the news , Zhengzhou Zhengdong New District Agriculture East Road intersection with the east side of wishful Italian summer bridge bridges between the bridge column and stigma is actually made with glue adhesion , as long as the slightest push hard these pillars few pounds heavier head will fall off.
For this, the reporter went to visit the site of the incident field .
Focus One: " stone head" Why repeatedly fall off ?
[ Response ] stone processing defects are the main cause shedding , stone adhesive connection is standard practice
Recently, the reporter went to the site of the incident , I saw construction units under construction . Italian summer bridge design unit of Tongji University Architectural Design Institute , the construction unit of First Construction Ltd. of Henan Province , Luoyang supervision units iT Management Company . December 2010 , officially took over the municipal sector Zhengdong New District , and arrange for routine custody . Built using less than two years , so why be so ? Reporters came to the Zhengdong New District Management Committee to understand the situation .
Chung Dong New Area Administrative Committee person in charge , after receiving the users reflect , Zhengdong New construction, municipal and Italian summer bridge construction units and other responsible persons were first at the scene view , the current draw " stone head" off the main reason for the stone processing problems .
The responsible person , mainly play a decorative role of the " pillars head" and is not in itself one of the pillars carved from the system. " Stone head" pillars and railings between the fixing groove is too shallow . Height 32 cm , weighing about 10 kilograms of the " first pillar " of only 1 cm deep notch supplemented two 2 cm high steel embedded in stone and fixed with cement , the foundation is not strong, experienced strong lateral forces can lead to loosening off. In addition , post- custody unit used in patching a simple way to fix stone adhesive patch is not fundamentally solve the problem, coupled with vandalism , and ultimately led to the " first pillar " loose in the main structure of the bridge is not affected.
Bridge expert , former chief engineer of Yuzhong Ting China Railway Bridge Bureau , said in an interview with reporters , deck granite paving, granite bridge railings belong to the late stigma decorative decoration construction . The use of stone granite stone adhesive bonding is connected to a routine practice in the granite bridge decorated decoration widely used, its efficacy is different from ordinary glue.
Focus II : Construction period 49 days ?
